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2829 lines
82 KiB
2829 lines
82 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmSystemTools.h"
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#include "cmAlgorithms.h"
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#include "cmProcessOutput.h"
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#include "cm_sys_stat.h"
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#if defined(CMAKE_BUILD_WITH_CMAKE)
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#include "cmArchiveWrite.h"
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#include "cmLocale.h"
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#include "cm_libarchive.h"
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#ifndef __LA_INT64_T
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#define __LA_INT64_T la_int64_t
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#endif
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#endif
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#if defined(CMAKE_BUILD_WITH_CMAKE)
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#include "cmCryptoHash.h"
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#endif
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#if defined(CMAKE_USE_ELF_PARSER)
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#include "cmELF.h"
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#endif
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#if defined(CMAKE_USE_MACH_PARSER)
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#include "cmMachO.h"
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#endif
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#include "cmsys/Directory.hxx"
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#include "cmsys/Encoding.hxx"
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#include "cmsys/FStream.hxx"
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#include "cmsys/RegularExpression.hxx"
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#include "cmsys/System.h"
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#include "cmsys/Terminal.h"
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#include <algorithm>
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#include <assert.h>
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#include <ctype.h>
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#include <errno.h>
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#include <iostream>
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#include <set>
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#include <sstream>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <utility>
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#if defined(_WIN32)
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#include <windows.h>
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// include wincrypt.h after windows.h
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#include <wincrypt.h>
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#else
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#include <sys/time.h>
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#include <unistd.h>
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#include <utime.h>
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#endif
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#if defined(_WIN32) && \
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(defined(_MSC_VER) || defined(__WATCOMC__) || defined(__MINGW32__))
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#include <io.h>
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#endif
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#if defined(__APPLE__)
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#include <mach-o/dyld.h>
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#endif
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#ifdef __QNX__
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#include <malloc.h> /* for malloc/free on QNX */
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#endif
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static bool cm_isspace(char c)
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{
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return ((c & 0x80) == 0) && isspace(c);
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}
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class cmSystemToolsFileTime
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{
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public:
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#if defined(_WIN32) && !defined(__CYGWIN__)
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FILETIME timeCreation;
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FILETIME timeLastAccess;
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FILETIME timeLastWrite;
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#else
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struct utimbuf timeBuf;
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#endif
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};
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#if !defined(HAVE_ENVIRON_NOT_REQUIRE_PROTOTYPE)
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// For GetEnvironmentVariables
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#if defined(_WIN32)
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extern __declspec(dllimport) char** environ;
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#else
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extern char** environ;
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#endif
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#endif
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#if defined(CMAKE_BUILD_WITH_CMAKE)
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static std::string cm_archive_entry_pathname(struct archive_entry* entry)
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{
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#if cmsys_STL_HAS_WSTRING
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return cmsys::Encoding::ToNarrow(archive_entry_pathname_w(entry));
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#else
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return archive_entry_pathname(entry);
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#endif
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}
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static int cm_archive_read_open_file(struct archive* a, const char* file,
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int block_size)
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{
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#if cmsys_STL_HAS_WSTRING
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std::wstring wfile = cmsys::Encoding::ToWide(file);
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return archive_read_open_filename_w(a, wfile.c_str(), block_size);
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#else
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return archive_read_open_filename(a, file, block_size);
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#endif
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}
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#endif
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#ifdef _WIN32
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class cmSystemToolsWindowsHandle
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{
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public:
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cmSystemToolsWindowsHandle(HANDLE h)
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: handle_(h)
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{
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}
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~cmSystemToolsWindowsHandle()
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{
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if (this->handle_ != INVALID_HANDLE_VALUE) {
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CloseHandle(this->handle_);
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}
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}
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operator bool() const { return this->handle_ != INVALID_HANDLE_VALUE; }
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bool operator!() const { return this->handle_ == INVALID_HANDLE_VALUE; }
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operator HANDLE() const { return this->handle_; }
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private:
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HANDLE handle_;
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};
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#elif defined(__APPLE__)
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#include <crt_externs.h>
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#define environ (*_NSGetEnviron())
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#endif
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bool cmSystemTools::s_RunCommandHideConsole = false;
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bool cmSystemTools::s_DisableRunCommandOutput = false;
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bool cmSystemTools::s_ErrorOccured = false;
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bool cmSystemTools::s_FatalErrorOccured = false;
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bool cmSystemTools::s_DisableMessages = false;
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bool cmSystemTools::s_ForceUnixPaths = false;
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cmSystemTools::MessageCallback cmSystemTools::s_MessageCallback;
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cmSystemTools::OutputCallback cmSystemTools::s_StdoutCallback;
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cmSystemTools::OutputCallback cmSystemTools::s_StderrCallback;
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cmSystemTools::InterruptCallback cmSystemTools::s_InterruptCallback;
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void* cmSystemTools::s_MessageCallbackClientData;
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void* cmSystemTools::s_StdoutCallbackClientData;
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void* cmSystemTools::s_StderrCallbackClientData;
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void* cmSystemTools::s_InterruptCallbackClientData;
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// replace replace with with as many times as it shows up in source.
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// write the result into source.
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#if defined(_WIN32) && !defined(__CYGWIN__)
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void cmSystemTools::ExpandRegistryValues(std::string& source, KeyWOW64 view)
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{
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// Regular expression to match anything inside [...] that begins in HKEY.
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// Note that there is a special rule for regular expressions to match a
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// close square-bracket inside a list delimited by square brackets.
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// The "[^]]" part of this expression will match any character except
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// a close square-bracket. The ']' character must be the first in the
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// list of characters inside the [^...] block of the expression.
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cmsys::RegularExpression regEntry("\\[(HKEY[^]]*)\\]");
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// check for black line or comment
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while (regEntry.find(source)) {
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// the arguments are the second match
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std::string key = regEntry.match(1);
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std::string val;
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if (ReadRegistryValue(key.c_str(), val, view)) {
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std::string reg = "[";
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reg += key + "]";
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cmSystemTools::ReplaceString(source, reg.c_str(), val.c_str());
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} else {
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std::string reg = "[";
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reg += key + "]";
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cmSystemTools::ReplaceString(source, reg.c_str(), "/registry");
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}
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}
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}
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#else
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void cmSystemTools::ExpandRegistryValues(std::string& source,
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KeyWOW64 /*unused*/)
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{
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cmsys::RegularExpression regEntry("\\[(HKEY[^]]*)\\]");
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while (regEntry.find(source)) {
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// the arguments are the second match
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std::string key = regEntry.match(1);
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std::string reg = "[";
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reg += key + "]";
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cmSystemTools::ReplaceString(source, reg.c_str(), "/registry");
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}
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}
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#endif
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std::string cmSystemTools::EscapeQuotes(const std::string& str)
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{
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std::string result;
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result.reserve(str.size());
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for (const char* ch = str.c_str(); *ch != '\0'; ++ch) {
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if (*ch == '"') {
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result += '\\';
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}
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result += *ch;
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}
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return result;
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}
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std::string cmSystemTools::HelpFileName(std::string name)
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{
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cmSystemTools::ReplaceString(name, "<", "");
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cmSystemTools::ReplaceString(name, ">", "");
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return name;
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}
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std::string cmSystemTools::TrimWhitespace(const std::string& s)
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{
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std::string::const_iterator start = s.begin();
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while (start != s.end() && cm_isspace(*start)) {
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++start;
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}
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if (start == s.end()) {
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return "";
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}
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std::string::const_iterator stop = s.end() - 1;
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while (cm_isspace(*stop)) {
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--stop;
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}
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return std::string(start, stop + 1);
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}
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void cmSystemTools::Error(const char* m1, const char* m2, const char* m3,
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const char* m4)
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{
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std::string message = "CMake Error: ";
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if (m1) {
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message += m1;
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}
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if (m2) {
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message += m2;
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}
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if (m3) {
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message += m3;
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}
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if (m4) {
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message += m4;
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}
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cmSystemTools::s_ErrorOccured = true;
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cmSystemTools::Message(message.c_str(), "Error");
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}
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void cmSystemTools::SetInterruptCallback(InterruptCallback f, void* clientData)
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{
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s_InterruptCallback = f;
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s_InterruptCallbackClientData = clientData;
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}
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bool cmSystemTools::GetInterruptFlag()
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{
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if (s_InterruptCallback) {
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return (*s_InterruptCallback)(s_InterruptCallbackClientData);
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}
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return false;
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}
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void cmSystemTools::SetMessageCallback(MessageCallback f, void* clientData)
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{
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s_MessageCallback = f;
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s_MessageCallbackClientData = clientData;
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}
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void cmSystemTools::SetStdoutCallback(OutputCallback f, void* clientData)
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{
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s_StdoutCallback = f;
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s_StdoutCallbackClientData = clientData;
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}
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void cmSystemTools::SetStderrCallback(OutputCallback f, void* clientData)
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{
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s_StderrCallback = f;
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s_StderrCallbackClientData = clientData;
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}
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void cmSystemTools::Stdout(const char* s)
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{
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cmSystemTools::Stdout(s, strlen(s));
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}
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void cmSystemTools::Stderr(const char* s)
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{
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cmSystemTools::Stderr(s, strlen(s));
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}
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void cmSystemTools::Stderr(const char* s, size_t length)
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{
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if (s_StderrCallback) {
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(*s_StderrCallback)(s, length, s_StderrCallbackClientData);
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} else {
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std::cerr.write(s, length);
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std::cerr.flush();
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}
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}
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void cmSystemTools::Stdout(const char* s, size_t length)
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{
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if (s_StdoutCallback) {
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(*s_StdoutCallback)(s, length, s_StdoutCallbackClientData);
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} else {
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std::cout.write(s, length);
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std::cout.flush();
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}
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}
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void cmSystemTools::Message(const char* m1, const char* title)
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{
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if (s_DisableMessages) {
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return;
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}
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if (s_MessageCallback) {
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(*s_MessageCallback)(m1, title, s_DisableMessages,
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s_MessageCallbackClientData);
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return;
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}
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std::cerr << m1 << std::endl << std::flush;
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}
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void cmSystemTools::ReportLastSystemError(const char* msg)
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{
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std::string m = msg;
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m += ": System Error: ";
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m += Superclass::GetLastSystemError();
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cmSystemTools::Error(m.c_str());
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}
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bool cmSystemTools::IsInternallyOn(const char* val)
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{
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if (!val) {
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return false;
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}
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std::string v = val;
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if (v.size() > 4) {
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return false;
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}
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for (std::string::iterator c = v.begin(); c != v.end(); c++) {
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*c = static_cast<char>(toupper(*c));
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}
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return v == "I_ON";
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}
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bool cmSystemTools::IsOn(const char* val)
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{
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if (!val) {
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return false;
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}
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size_t len = strlen(val);
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if (len > 4) {
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return false;
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}
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std::string v(val, len);
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static std::set<std::string> onValues;
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if (onValues.empty()) {
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onValues.insert("ON");
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onValues.insert("1");
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onValues.insert("YES");
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onValues.insert("TRUE");
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onValues.insert("Y");
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}
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for (std::string::iterator c = v.begin(); c != v.end(); c++) {
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*c = static_cast<char>(toupper(*c));
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}
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return (onValues.count(v) > 0);
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}
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bool cmSystemTools::IsNOTFOUND(const char* val)
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{
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if (strcmp(val, "NOTFOUND") == 0) {
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return true;
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}
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return cmHasLiteralSuffix(val, "-NOTFOUND");
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}
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bool cmSystemTools::IsOff(const char* val)
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{
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if (!val || !*val) {
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return true;
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}
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size_t len = strlen(val);
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// Try and avoid toupper() for large strings.
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if (len > 6) {
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return cmSystemTools::IsNOTFOUND(val);
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}
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static std::set<std::string> offValues;
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if (offValues.empty()) {
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offValues.insert("OFF");
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offValues.insert("0");
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offValues.insert("NO");
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offValues.insert("FALSE");
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offValues.insert("N");
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offValues.insert("IGNORE");
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}
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// Try and avoid toupper().
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std::string v(val, len);
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for (std::string::iterator c = v.begin(); c != v.end(); c++) {
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*c = static_cast<char>(toupper(*c));
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}
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return (offValues.count(v) > 0);
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}
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void cmSystemTools::ParseWindowsCommandLine(const char* command,
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std::vector<std::string>& args)
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{
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// See the MSDN document "Parsing C Command-Line Arguments" at
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// http://msdn2.microsoft.com/en-us/library/a1y7w461.aspx for rules
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// of parsing the windows command line.
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bool in_argument = false;
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bool in_quotes = false;
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int backslashes = 0;
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std::string arg;
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for (const char* c = command; *c; ++c) {
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if (*c == '\\') {
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++backslashes;
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in_argument = true;
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} else if (*c == '"') {
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int backslash_pairs = backslashes >> 1;
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int backslash_escaped = backslashes & 1;
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arg.append(backslash_pairs, '\\');
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backslashes = 0;
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if (backslash_escaped) {
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/* An odd number of backslashes precede this quote.
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It is escaped. */
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arg.append(1, '"');
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} else {
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/* An even number of backslashes precede this quote.
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It is not escaped. */
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in_quotes = !in_quotes;
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}
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in_argument = true;
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} else {
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arg.append(backslashes, '\\');
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backslashes = 0;
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if (cm_isspace(*c)) {
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if (in_quotes) {
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arg.append(1, *c);
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} else if (in_argument) {
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args.push_back(arg);
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arg = "";
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in_argument = false;
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}
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} else {
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in_argument = true;
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arg.append(1, *c);
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}
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}
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}
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arg.append(backslashes, '\\');
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if (in_argument) {
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args.push_back(arg);
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}
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}
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class cmSystemToolsArgV
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{
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char** ArgV;
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public:
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cmSystemToolsArgV(char** argv)
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: ArgV(argv)
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{
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}
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~cmSystemToolsArgV()
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{
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for (char** arg = this->ArgV; arg && *arg; ++arg) {
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free(*arg);
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}
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free(this->ArgV);
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}
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void Store(std::vector<std::string>& args) const
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{
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for (char** arg = this->ArgV; arg && *arg; ++arg) {
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args.push_back(*arg);
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}
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}
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};
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void cmSystemTools::ParseUnixCommandLine(const char* command,
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std::vector<std::string>& args)
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{
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// Invoke the underlying parser.
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cmSystemToolsArgV argv = cmsysSystem_Parse_CommandForUnix(command, 0);
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argv.Store(args);
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}
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std::vector<std::string> cmSystemTools::HandleResponseFile(
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std::vector<std::string>::const_iterator argBeg,
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std::vector<std::string>::const_iterator argEnd)
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|
{
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std::vector<std::string> arg_full;
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for (std::vector<std::string>::const_iterator a = argBeg; a != argEnd; ++a) {
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std::string const& arg = *a;
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if (cmHasLiteralPrefix(arg, "@")) {
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cmsys::ifstream responseFile(arg.substr(1).c_str(), std::ios::in);
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if (!responseFile) {
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std::string error = "failed to open for reading (";
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error += cmSystemTools::GetLastSystemError();
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error += "):\n ";
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error += arg.substr(1);
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cmSystemTools::Error(error.c_str());
|
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} else {
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std::string line;
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cmSystemTools::GetLineFromStream(responseFile, line);
|
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std::vector<std::string> args2;
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#ifdef _WIN32
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cmSystemTools::ParseWindowsCommandLine(line.c_str(), args2);
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#else
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cmSystemTools::ParseUnixCommandLine(line.c_str(), args2);
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#endif
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arg_full.insert(arg_full.end(), args2.begin(), args2.end());
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}
|
|
} else {
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arg_full.push_back(arg);
|
|
}
|
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}
|
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return arg_full;
|
|
}
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|
|
|
std::vector<std::string> cmSystemTools::ParseArguments(const char* command)
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|
{
|
|
std::vector<std::string> args;
|
|
std::string arg;
|
|
|
|
bool win_path = false;
|
|
|
|
if ((command[0] != '/' && command[1] == ':' && command[2] == '\\') ||
|
|
(command[0] == '\"' && command[1] != '/' && command[2] == ':' &&
|
|
command[3] == '\\') ||
|
|
(command[0] == '\'' && command[1] != '/' && command[2] == ':' &&
|
|
command[3] == '\\') ||
|
|
(command[0] == '\\' && command[1] == '\\')) {
|
|
win_path = true;
|
|
}
|
|
// Split the command into an argv array.
|
|
for (const char* c = command; *c;) {
|
|
// Skip over whitespace.
|
|
while (*c == ' ' || *c == '\t') {
|
|
++c;
|
|
}
|
|
arg = "";
|
|
if (*c == '"') {
|
|
// Parse a quoted argument.
|
|
++c;
|
|
while (*c && *c != '"') {
|
|
arg.append(1, *c);
|
|
++c;
|
|
}
|
|
if (*c) {
|
|
++c;
|
|
}
|
|
args.push_back(arg);
|
|
} else if (*c == '\'') {
|
|
// Parse a quoted argument.
|
|
++c;
|
|
while (*c && *c != '\'') {
|
|
arg.append(1, *c);
|
|
++c;
|
|
}
|
|
if (*c) {
|
|
++c;
|
|
}
|
|
args.push_back(arg);
|
|
} else if (*c) {
|
|
// Parse an unquoted argument.
|
|
while (*c && *c != ' ' && *c != '\t') {
|
|
if (*c == '\\' && !win_path) {
|
|
++c;
|
|
if (*c) {
|
|
arg.append(1, *c);
|
|
++c;
|
|
}
|
|
} else {
|
|
arg.append(1, *c);
|
|
++c;
|
|
}
|
|
}
|
|
args.push_back(arg);
|
|
}
|
|
}
|
|
|
|
return args;
|
|
}
|
|
|
|
size_t cmSystemTools::CalculateCommandLineLengthLimit()
|
|
{
|
|
size_t sz =
|
|
#ifdef _WIN32
|
|
// There's a maximum of 65536 bytes and thus 32768 WCHARs on Windows
|
|
// However, cmd.exe itself can only handle 8191 WCHARs and Ninja for
|
|
// example uses it to spawn processes.
|
|
size_t(8191);
|
|
#elif defined(__linux)
|
|
// MAX_ARG_STRLEN is the maximum length of a string permissible for
|
|
// the execve() syscall on Linux. It's defined as (PAGE_SIZE * 32)
|
|
// in Linux's binfmts.h
|
|
static_cast<size_t>(sysconf(_SC_PAGESIZE) * 32);
|
|
#else
|
|
size_t(0);
|
|
#endif
|
|
|
|
#if defined(_SC_ARG_MAX)
|
|
// ARG_MAX is the maximum size of the command and environment
|
|
// that can be passed to the exec functions on UNIX.
|
|
// The value in limits.h does not need to be present and may
|
|
// depend upon runtime memory constraints, hence sysconf()
|
|
// should be used to query it.
|
|
long szArgMax = sysconf(_SC_ARG_MAX);
|
|
// A return value of -1 signifies an undetermined limit, but
|
|
// it does not imply an infinite limit, and thus is ignored.
|
|
if (szArgMax != -1) {
|
|
// We estimate the size of the environment block to be 1000.
|
|
// This isn't accurate at all, but leaves some headroom.
|
|
szArgMax = szArgMax < 1000 ? 0 : szArgMax - 1000;
|
|
#if defined(_WIN32) || defined(__linux)
|
|
sz = std::min(sz, static_cast<size_t>(szArgMax));
|
|
#else
|
|
sz = static_cast<size_t>(szArgMax);
|
|
#endif
|
|
}
|
|
#endif
|
|
return sz;
|
|
}
|
|
|
|
bool cmSystemTools::RunSingleCommand(std::vector<std::string> const& command,
|
|
std::string* captureStdOut,
|
|
std::string* captureStdErr, int* retVal,
|
|
const char* dir, OutputOption outputflag,
|
|
double timeout, Encoding encoding)
|
|
{
|
|
std::vector<const char*> argv;
|
|
for (std::vector<std::string>::const_iterator a = command.begin();
|
|
a != command.end(); ++a) {
|
|
argv.push_back(a->c_str());
|
|
}
|
|
argv.push_back(CM_NULLPTR);
|
|
|
|
cmsysProcess* cp = cmsysProcess_New();
|
|
cmsysProcess_SetCommand(cp, &*argv.begin());
|
|
cmsysProcess_SetWorkingDirectory(cp, dir);
|
|
if (cmSystemTools::GetRunCommandHideConsole()) {
|
|
cmsysProcess_SetOption(cp, cmsysProcess_Option_HideWindow, 1);
|
|
}
|
|
|
|
if (outputflag == OUTPUT_PASSTHROUGH) {
|
|
cmsysProcess_SetPipeShared(cp, cmsysProcess_Pipe_STDOUT, 1);
|
|
cmsysProcess_SetPipeShared(cp, cmsysProcess_Pipe_STDERR, 1);
|
|
captureStdOut = CM_NULLPTR;
|
|
captureStdErr = CM_NULLPTR;
|
|
} else if (outputflag == OUTPUT_MERGE ||
|
|
(captureStdErr && captureStdErr == captureStdOut)) {
|
|
cmsysProcess_SetOption(cp, cmsysProcess_Option_MergeOutput, 1);
|
|
captureStdErr = CM_NULLPTR;
|
|
}
|
|
assert(!captureStdErr || captureStdErr != captureStdOut);
|
|
|
|
cmsysProcess_SetTimeout(cp, timeout);
|
|
cmsysProcess_Execute(cp);
|
|
|
|
std::vector<char> tempStdOut;
|
|
std::vector<char> tempStdErr;
|
|
char* data;
|
|
int length;
|
|
int pipe;
|
|
cmProcessOutput processOutput(encoding);
|
|
std::string strdata;
|
|
if (outputflag != OUTPUT_PASSTHROUGH &&
|
|
(captureStdOut || captureStdErr || outputflag != OUTPUT_NONE)) {
|
|
while ((pipe = cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR)) >
|
|
0) {
|
|
// Translate NULL characters in the output into valid text.
|
|
for (int i = 0; i < length; ++i) {
|
|
if (data[i] == '\0') {
|
|
data[i] = ' ';
|
|
}
|
|
}
|
|
|
|
if (pipe == cmsysProcess_Pipe_STDOUT) {
|
|
if (outputflag != OUTPUT_NONE) {
|
|
processOutput.DecodeText(data, length, strdata, 1);
|
|
cmSystemTools::Stdout(strdata.c_str(), strdata.size());
|
|
}
|
|
if (captureStdOut) {
|
|
tempStdOut.insert(tempStdOut.end(), data, data + length);
|
|
}
|
|
} else if (pipe == cmsysProcess_Pipe_STDERR) {
|
|
if (outputflag != OUTPUT_NONE) {
|
|
processOutput.DecodeText(data, length, strdata, 2);
|
|
cmSystemTools::Stderr(strdata.c_str(), strdata.size());
|
|
}
|
|
if (captureStdErr) {
|
|
tempStdErr.insert(tempStdErr.end(), data, data + length);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (outputflag != OUTPUT_NONE) {
|
|
processOutput.DecodeText(std::string(), strdata, 1);
|
|
if (!strdata.empty()) {
|
|
cmSystemTools::Stdout(strdata.c_str(), strdata.size());
|
|
}
|
|
processOutput.DecodeText(std::string(), strdata, 2);
|
|
if (!strdata.empty()) {
|
|
cmSystemTools::Stderr(strdata.c_str(), strdata.size());
|
|
}
|
|
}
|
|
}
|
|
|
|
cmsysProcess_WaitForExit(cp, CM_NULLPTR);
|
|
|
|
if (captureStdOut) {
|
|
captureStdOut->assign(tempStdOut.begin(), tempStdOut.end());
|
|
processOutput.DecodeText(*captureStdOut, *captureStdOut);
|
|
}
|
|
if (captureStdErr) {
|
|
captureStdErr->assign(tempStdErr.begin(), tempStdErr.end());
|
|
processOutput.DecodeText(*captureStdErr, *captureStdErr);
|
|
}
|
|
|
|
bool result = true;
|
|
if (cmsysProcess_GetState(cp) == cmsysProcess_State_Exited) {
|
|
if (retVal) {
|
|
*retVal = cmsysProcess_GetExitValue(cp);
|
|
} else {
|
|
if (cmsysProcess_GetExitValue(cp) != 0) {
|
|
result = false;
|
|
}
|
|
}
|
|
} else if (cmsysProcess_GetState(cp) == cmsysProcess_State_Exception) {
|
|
const char* exception_str = cmsysProcess_GetExceptionString(cp);
|
|
if (outputflag != OUTPUT_NONE) {
|
|
std::cerr << exception_str << std::endl;
|
|
}
|
|
if (captureStdErr) {
|
|
captureStdErr->append(exception_str, strlen(exception_str));
|
|
}
|
|
result = false;
|
|
} else if (cmsysProcess_GetState(cp) == cmsysProcess_State_Error) {
|
|
const char* error_str = cmsysProcess_GetErrorString(cp);
|
|
if (outputflag != OUTPUT_NONE) {
|
|
std::cerr << error_str << std::endl;
|
|
}
|
|
if (captureStdErr) {
|
|
captureStdErr->append(error_str, strlen(error_str));
|
|
}
|
|
result = false;
|
|
} else if (cmsysProcess_GetState(cp) == cmsysProcess_State_Expired) {
|
|
const char* error_str = "Process terminated due to timeout\n";
|
|
if (outputflag != OUTPUT_NONE) {
|
|
std::cerr << error_str << std::endl;
|
|
}
|
|
if (captureStdErr) {
|
|
captureStdErr->append(error_str, strlen(error_str));
|
|
}
|
|
result = false;
|
|
}
|
|
|
|
cmsysProcess_Delete(cp);
|
|
return result;
|
|
}
|
|
|
|
bool cmSystemTools::RunSingleCommand(const char* command,
|
|
std::string* captureStdOut,
|
|
std::string* captureStdErr, int* retVal,
|
|
const char* dir, OutputOption outputflag,
|
|
double timeout)
|
|
{
|
|
if (s_DisableRunCommandOutput) {
|
|
outputflag = OUTPUT_NONE;
|
|
}
|
|
|
|
std::vector<std::string> args = cmSystemTools::ParseArguments(command);
|
|
|
|
if (args.empty()) {
|
|
return false;
|
|
}
|
|
return cmSystemTools::RunSingleCommand(args, captureStdOut, captureStdErr,
|
|
retVal, dir, outputflag, timeout);
|
|
}
|
|
|
|
std::string cmSystemTools::PrintSingleCommand(
|
|
std::vector<std::string> const& command)
|
|
{
|
|
if (command.empty()) {
|
|
return std::string();
|
|
}
|
|
|
|
return cmWrap('"', command, '"', " ");
|
|
}
|
|
|
|
bool cmSystemTools::DoesFileExistWithExtensions(
|
|
const char* name, const std::vector<std::string>& headerExts)
|
|
{
|
|
std::string hname;
|
|
|
|
for (std::vector<std::string>::const_iterator ext = headerExts.begin();
|
|
ext != headerExts.end(); ++ext) {
|
|
hname = name;
|
|
hname += ".";
|
|
hname += *ext;
|
|
if (cmSystemTools::FileExists(hname.c_str())) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
std::string cmSystemTools::FileExistsInParentDirectories(const char* fname,
|
|
const char* directory,
|
|
const char* toplevel)
|
|
{
|
|
std::string file = fname;
|
|
cmSystemTools::ConvertToUnixSlashes(file);
|
|
std::string dir = directory;
|
|
cmSystemTools::ConvertToUnixSlashes(dir);
|
|
std::string prevDir;
|
|
while (dir != prevDir) {
|
|
std::string path = dir + "/" + file;
|
|
if (cmSystemTools::FileExists(path.c_str())) {
|
|
return path;
|
|
}
|
|
if (dir.size() < strlen(toplevel)) {
|
|
break;
|
|
}
|
|
prevDir = dir;
|
|
dir = cmSystemTools::GetParentDirectory(dir);
|
|
}
|
|
return "";
|
|
}
|
|
|
|
bool cmSystemTools::cmCopyFile(const char* source, const char* destination)
|
|
{
|
|
return Superclass::CopyFileAlways(source, destination);
|
|
}
|
|
|
|
bool cmSystemTools::CopyFileIfDifferent(const char* source,
|
|
const char* destination)
|
|
{
|
|
return Superclass::CopyFileIfDifferent(source, destination);
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
cmSystemTools::WindowsFileRetry cmSystemTools::GetWindowsFileRetry()
|
|
{
|
|
static WindowsFileRetry retry = { 0, 0 };
|
|
if (!retry.Count) {
|
|
unsigned int data[2] = { 0, 0 };
|
|
HKEY const keys[2] = { HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE };
|
|
wchar_t const* const values[2] = { L"FilesystemRetryCount",
|
|
L"FilesystemRetryDelay" };
|
|
for (int k = 0; k < 2; ++k) {
|
|
HKEY hKey;
|
|
if (RegOpenKeyExW(keys[k], L"Software\\Kitware\\CMake\\Config", 0,
|
|
KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS) {
|
|
for (int v = 0; v < 2; ++v) {
|
|
DWORD dwData, dwType, dwSize = 4;
|
|
if (!data[v] &&
|
|
RegQueryValueExW(hKey, values[v], 0, &dwType, (BYTE*)&dwData,
|
|
&dwSize) == ERROR_SUCCESS &&
|
|
dwType == REG_DWORD && dwSize == 4) {
|
|
data[v] = static_cast<unsigned int>(dwData);
|
|
}
|
|
}
|
|
RegCloseKey(hKey);
|
|
}
|
|
}
|
|
retry.Count = data[0] ? data[0] : 5;
|
|
retry.Delay = data[1] ? data[1] : 500;
|
|
}
|
|
return retry;
|
|
}
|
|
#endif
|
|
|
|
bool cmSystemTools::RenameFile(const char* oldname, const char* newname)
|
|
{
|
|
#ifdef _WIN32
|
|
#ifndef INVALID_FILE_ATTRIBUTES
|
|
#define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
|
|
#endif
|
|
/* Windows MoveFileEx may not replace read-only or in-use files. If it
|
|
fails then remove the read-only attribute from any existing destination.
|
|
Try multiple times since we may be racing against another process
|
|
creating/opening the destination file just before our MoveFileEx. */
|
|
WindowsFileRetry retry = cmSystemTools::GetWindowsFileRetry();
|
|
while (
|
|
!MoveFileExW(SystemTools::ConvertToWindowsExtendedPath(oldname).c_str(),
|
|
SystemTools::ConvertToWindowsExtendedPath(newname).c_str(),
|
|
MOVEFILE_REPLACE_EXISTING) &&
|
|
--retry.Count) {
|
|
DWORD last_error = GetLastError();
|
|
// Try again only if failure was due to access/sharing permissions.
|
|
if (last_error != ERROR_ACCESS_DENIED &&
|
|
last_error != ERROR_SHARING_VIOLATION) {
|
|
return false;
|
|
}
|
|
DWORD attrs = GetFileAttributesW(
|
|
SystemTools::ConvertToWindowsExtendedPath(newname).c_str());
|
|
if ((attrs != INVALID_FILE_ATTRIBUTES) &&
|
|
(attrs & FILE_ATTRIBUTE_READONLY)) {
|
|
// Remove the read-only attribute from the destination file.
|
|
SetFileAttributesW(
|
|
SystemTools::ConvertToWindowsExtendedPath(newname).c_str(),
|
|
attrs & ~FILE_ATTRIBUTE_READONLY);
|
|
} else {
|
|
// The file may be temporarily in use so wait a bit.
|
|
cmSystemTools::Delay(retry.Delay);
|
|
}
|
|
}
|
|
return retry.Count > 0;
|
|
#else
|
|
/* On UNIX we have an OS-provided call to do this atomically. */
|
|
return rename(oldname, newname) == 0;
|
|
#endif
|
|
}
|
|
|
|
bool cmSystemTools::ComputeFileMD5(const std::string& source, char* md5out)
|
|
{
|
|
#if defined(CMAKE_BUILD_WITH_CMAKE)
|
|
cmCryptoHash md5(cmCryptoHash::AlgoMD5);
|
|
std::string const str = md5.HashFile(source);
|
|
strncpy(md5out, str.c_str(), 32);
|
|
return !str.empty();
|
|
#else
|
|
(void)source;
|
|
(void)md5out;
|
|
cmSystemTools::Message("md5sum not supported in bootstrapping mode",
|
|
"Error");
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
std::string cmSystemTools::ComputeStringMD5(const std::string& input)
|
|
{
|
|
#if defined(CMAKE_BUILD_WITH_CMAKE)
|
|
cmCryptoHash md5(cmCryptoHash::AlgoMD5);
|
|
return md5.HashString(input);
|
|
#else
|
|
(void)input;
|
|
cmSystemTools::Message("md5sum not supported in bootstrapping mode",
|
|
"Error");
|
|
return "";
|
|
#endif
|
|
}
|
|
|
|
std::string cmSystemTools::ComputeCertificateThumbprint(
|
|
const std::string& source)
|
|
{
|
|
std::string thumbprint;
|
|
|
|
#if defined(CMAKE_BUILD_WITH_CMAKE) && defined(_WIN32)
|
|
BYTE* certData = NULL;
|
|
CRYPT_INTEGER_BLOB cryptBlob;
|
|
HCERTSTORE certStore = NULL;
|
|
PCCERT_CONTEXT certContext = NULL;
|
|
|
|
HANDLE certFile = CreateFileW(
|
|
cmsys::Encoding::ToWide(source.c_str()).c_str(), GENERIC_READ,
|
|
FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
|
|
if (certFile != INVALID_HANDLE_VALUE && certFile != NULL) {
|
|
DWORD fileSize = GetFileSize(certFile, NULL);
|
|
if (fileSize != INVALID_FILE_SIZE) {
|
|
certData = new BYTE[fileSize];
|
|
if (certData != NULL) {
|
|
DWORD dwRead = 0;
|
|
if (ReadFile(certFile, certData, fileSize, &dwRead, NULL)) {
|
|
cryptBlob.cbData = fileSize;
|
|
cryptBlob.pbData = certData;
|
|
|
|
// Verify that this is a valid cert
|
|
if (PFXIsPFXBlob(&cryptBlob)) {
|
|
// Open the certificate as a store
|
|
certStore = PFXImportCertStore(&cryptBlob, NULL, CRYPT_EXPORTABLE);
|
|
if (certStore != NULL) {
|
|
// There should only be 1 cert.
|
|
certContext =
|
|
CertEnumCertificatesInStore(certStore, certContext);
|
|
if (certContext != NULL) {
|
|
// The hash is 20 bytes
|
|
BYTE hashData[20];
|
|
DWORD hashLength = 20;
|
|
|
|
// Buffer to print the hash. Each byte takes 2 chars +
|
|
// terminating character
|
|
char hashPrint[41];
|
|
char* pHashPrint = hashPrint;
|
|
// Get the hash property from the certificate
|
|
if (CertGetCertificateContextProperty(
|
|
certContext, CERT_HASH_PROP_ID, hashData, &hashLength)) {
|
|
for (DWORD i = 0; i < hashLength; i++) {
|
|
// Convert each byte to hexadecimal
|
|
sprintf(pHashPrint, "%02X", hashData[i]);
|
|
pHashPrint += 2;
|
|
}
|
|
*pHashPrint = '\0';
|
|
thumbprint = hashPrint;
|
|
}
|
|
CertFreeCertificateContext(certContext);
|
|
}
|
|
CertCloseStore(certStore, 0);
|
|
}
|
|
}
|
|
}
|
|
delete[] certData;
|
|
}
|
|
}
|
|
CloseHandle(certFile);
|
|
}
|
|
#else
|
|
(void)source;
|
|
cmSystemTools::Message("ComputeCertificateThumbprint is not implemented",
|
|
"Error");
|
|
#endif
|
|
|
|
return thumbprint;
|
|
}
|
|
|
|
void cmSystemTools::Glob(const std::string& directory,
|
|
const std::string& regexp,
|
|
std::vector<std::string>& files)
|
|
{
|
|
cmsys::Directory d;
|
|
cmsys::RegularExpression reg(regexp.c_str());
|
|
|
|
if (d.Load(directory)) {
|
|
size_t numf;
|
|
unsigned int i;
|
|
numf = d.GetNumberOfFiles();
|
|
for (i = 0; i < numf; i++) {
|
|
std::string fname = d.GetFile(i);
|
|
if (reg.find(fname)) {
|
|
files.push_back(fname);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void cmSystemTools::GlobDirs(const std::string& path,
|
|
std::vector<std::string>& files)
|
|
{
|
|
std::string::size_type pos = path.find("/*");
|
|
if (pos == std::string::npos) {
|
|
files.push_back(path);
|
|
return;
|
|
}
|
|
std::string startPath = path.substr(0, pos);
|
|
std::string finishPath = path.substr(pos + 2);
|
|
|
|
cmsys::Directory d;
|
|
if (d.Load(startPath)) {
|
|
for (unsigned int i = 0; i < d.GetNumberOfFiles(); ++i) {
|
|
if ((std::string(d.GetFile(i)) != ".") &&
|
|
(std::string(d.GetFile(i)) != "..")) {
|
|
std::string fname = startPath;
|
|
fname += "/";
|
|
fname += d.GetFile(i);
|
|
if (cmSystemTools::FileIsDirectory(fname)) {
|
|
fname += finishPath;
|
|
cmSystemTools::GlobDirs(fname, files);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void cmSystemTools::ExpandList(std::vector<std::string> const& arguments,
|
|
std::vector<std::string>& newargs)
|
|
{
|
|
std::vector<std::string>::const_iterator i;
|
|
for (i = arguments.begin(); i != arguments.end(); ++i) {
|
|
cmSystemTools::ExpandListArgument(*i, newargs);
|
|
}
|
|
}
|
|
|
|
void cmSystemTools::ExpandListArgument(const std::string& arg,
|
|
std::vector<std::string>& newargs,
|
|
bool emptyArgs)
|
|
{
|
|
// If argument is empty, it is an empty list.
|
|
if (!emptyArgs && arg.empty()) {
|
|
return;
|
|
}
|
|
// if there are no ; in the name then just copy the current string
|
|
if (arg.find(';') == std::string::npos) {
|
|
newargs.push_back(arg);
|
|
return;
|
|
}
|
|
std::string newArg;
|
|
const char* last = arg.c_str();
|
|
// Break the string at non-escaped semicolons not nested in [].
|
|
int squareNesting = 0;
|
|
for (const char* c = last; *c; ++c) {
|
|
switch (*c) {
|
|
case '\\': {
|
|
// We only want to allow escaping of semicolons. Other
|
|
// escapes should not be processed here.
|
|
const char* next = c + 1;
|
|
if (*next == ';') {
|
|
newArg.append(last, c - last);
|
|
// Skip over the escape character
|
|
last = c = next;
|
|
}
|
|
} break;
|
|
case '[': {
|
|
++squareNesting;
|
|
} break;
|
|
case ']': {
|
|
--squareNesting;
|
|
} break;
|
|
case ';': {
|
|
// Break the string here if we are not nested inside square
|
|
// brackets.
|
|
if (squareNesting == 0) {
|
|
newArg.append(last, c - last);
|
|
// Skip over the semicolon
|
|
last = c + 1;
|
|
if (!newArg.empty() || emptyArgs) {
|
|
// Add the last argument if the string is not empty.
|
|
newargs.push_back(newArg);
|
|
newArg = "";
|
|
}
|
|
}
|
|
} break;
|
|
default: {
|
|
// Just append this character.
|
|
} break;
|
|
}
|
|
}
|
|
newArg.append(last);
|
|
if (!newArg.empty() || emptyArgs) {
|
|
// Add the last argument if the string is not empty.
|
|
newargs.push_back(newArg);
|
|
}
|
|
}
|
|
|
|
bool cmSystemTools::SimpleGlob(const std::string& glob,
|
|
std::vector<std::string>& files,
|
|
int type /* = 0 */)
|
|
{
|
|
files.clear();
|
|
if (glob[glob.size() - 1] != '*') {
|
|
return false;
|
|
}
|
|
std::string path = cmSystemTools::GetFilenamePath(glob);
|
|
std::string ppath = cmSystemTools::GetFilenameName(glob);
|
|
ppath = ppath.substr(0, ppath.size() - 1);
|
|
if (path.empty()) {
|
|
path = "/";
|
|
}
|
|
|
|
bool res = false;
|
|
cmsys::Directory d;
|
|
if (d.Load(path)) {
|
|
for (unsigned int i = 0; i < d.GetNumberOfFiles(); ++i) {
|
|
if ((std::string(d.GetFile(i)) != ".") &&
|
|
(std::string(d.GetFile(i)) != "..")) {
|
|
std::string fname = path;
|
|
if (path[path.size() - 1] != '/') {
|
|
fname += "/";
|
|
}
|
|
fname += d.GetFile(i);
|
|
std::string sfname = d.GetFile(i);
|
|
if (type > 0 && cmSystemTools::FileIsDirectory(fname)) {
|
|
continue;
|
|
}
|
|
if (type < 0 && !cmSystemTools::FileIsDirectory(fname)) {
|
|
continue;
|
|
}
|
|
if (sfname.size() >= ppath.size() &&
|
|
sfname.substr(0, ppath.size()) == ppath) {
|
|
files.push_back(fname);
|
|
res = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
cmSystemTools::FileFormat cmSystemTools::GetFileFormat(const char* cext)
|
|
{
|
|
if (!cext || *cext == 0) {
|
|
return cmSystemTools::NO_FILE_FORMAT;
|
|
}
|
|
// std::string ext = cmSystemTools::LowerCase(cext);
|
|
std::string ext = cext;
|
|
if (ext == "c" || ext == ".c" || ext == "m" || ext == ".m") {
|
|
return cmSystemTools::C_FILE_FORMAT;
|
|
}
|
|
if (ext == "C" || ext == ".C" || ext == "M" || ext == ".M" || ext == "c++" ||
|
|
ext == ".c++" || ext == "cc" || ext == ".cc" || ext == "cpp" ||
|
|
ext == ".cpp" || ext == "cxx" || ext == ".cxx" || ext == "mm" ||
|
|
ext == ".mm") {
|
|
return cmSystemTools::CXX_FILE_FORMAT;
|
|
}
|
|
if (ext == "f" || ext == ".f" || ext == "F" || ext == ".F" || ext == "f77" ||
|
|
ext == ".f77" || ext == "f90" || ext == ".f90" || ext == "for" ||
|
|
ext == ".for" || ext == "f95" || ext == ".f95") {
|
|
return cmSystemTools::FORTRAN_FILE_FORMAT;
|
|
}
|
|
if (ext == "java" || ext == ".java") {
|
|
return cmSystemTools::JAVA_FILE_FORMAT;
|
|
}
|
|
if (ext == "H" || ext == ".H" || ext == "h" || ext == ".h" || ext == "h++" ||
|
|
ext == ".h++" || ext == "hm" || ext == ".hm" || ext == "hpp" ||
|
|
ext == ".hpp" || ext == "hxx" || ext == ".hxx" || ext == "in" ||
|
|
ext == ".in" || ext == "txx" || ext == ".txx") {
|
|
return cmSystemTools::HEADER_FILE_FORMAT;
|
|
}
|
|
if (ext == "rc" || ext == ".rc") {
|
|
return cmSystemTools::RESOURCE_FILE_FORMAT;
|
|
}
|
|
if (ext == "def" || ext == ".def") {
|
|
return cmSystemTools::DEFINITION_FILE_FORMAT;
|
|
}
|
|
if (ext == "lib" || ext == ".lib" || ext == "a" || ext == ".a") {
|
|
return cmSystemTools::STATIC_LIBRARY_FILE_FORMAT;
|
|
}
|
|
if (ext == "o" || ext == ".o" || ext == "obj" || ext == ".obj") {
|
|
return cmSystemTools::OBJECT_FILE_FORMAT;
|
|
}
|
|
#ifdef __APPLE__
|
|
if (ext == "dylib" || ext == ".dylib") {
|
|
return cmSystemTools::SHARED_LIBRARY_FILE_FORMAT;
|
|
}
|
|
if (ext == "so" || ext == ".so" || ext == "bundle" || ext == ".bundle") {
|
|
return cmSystemTools::MODULE_FILE_FORMAT;
|
|
}
|
|
#else // __APPLE__
|
|
if (ext == "so" || ext == ".so" || ext == "sl" || ext == ".sl" ||
|
|
ext == "dll" || ext == ".dll") {
|
|
return cmSystemTools::SHARED_LIBRARY_FILE_FORMAT;
|
|
}
|
|
#endif // __APPLE__
|
|
return cmSystemTools::UNKNOWN_FILE_FORMAT;
|
|
}
|
|
|
|
bool cmSystemTools::Split(const char* s, std::vector<std::string>& l)
|
|
{
|
|
std::vector<std::string> temp;
|
|
bool res = Superclass::Split(s, temp);
|
|
l.insert(l.end(), temp.begin(), temp.end());
|
|
return res;
|
|
}
|
|
|
|
std::string cmSystemTools::ConvertToOutputPath(const char* path)
|
|
{
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
if (s_ForceUnixPaths) {
|
|
return cmSystemTools::ConvertToUnixOutputPath(path);
|
|
}
|
|
return cmSystemTools::ConvertToWindowsOutputPath(path);
|
|
#else
|
|
return cmSystemTools::ConvertToUnixOutputPath(path);
|
|
#endif
|
|
}
|
|
|
|
void cmSystemTools::ConvertToOutputSlashes(std::string& path)
|
|
{
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
if (!s_ForceUnixPaths) {
|
|
// Convert to windows slashes.
|
|
std::string::size_type pos = 0;
|
|
while ((pos = path.find('/', pos)) != std::string::npos) {
|
|
path[pos++] = '\\';
|
|
}
|
|
}
|
|
#else
|
|
static_cast<void>(path);
|
|
#endif
|
|
}
|
|
|
|
std::string cmSystemTools::ConvertToRunCommandPath(const char* path)
|
|
{
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
return cmSystemTools::ConvertToWindowsOutputPath(path);
|
|
#else
|
|
return cmSystemTools::ConvertToUnixOutputPath(path);
|
|
#endif
|
|
}
|
|
|
|
// compute the relative path from here to there
|
|
std::string cmSystemTools::RelativePath(const char* local, const char* remote)
|
|
{
|
|
if (!cmSystemTools::FileIsFullPath(local)) {
|
|
cmSystemTools::Error("RelativePath must be passed a full path to local: ",
|
|
local);
|
|
}
|
|
if (!cmSystemTools::FileIsFullPath(remote)) {
|
|
cmSystemTools::Error("RelativePath must be passed a full path to remote: ",
|
|
remote);
|
|
}
|
|
return cmsys::SystemTools::RelativePath(local, remote);
|
|
}
|
|
|
|
std::string cmSystemTools::CollapseCombinedPath(std::string const& dir,
|
|
std::string const& file)
|
|
{
|
|
if (dir.empty() || dir == ".") {
|
|
return file;
|
|
}
|
|
|
|
std::vector<std::string> dirComponents;
|
|
std::vector<std::string> fileComponents;
|
|
cmSystemTools::SplitPath(dir, dirComponents);
|
|
cmSystemTools::SplitPath(file, fileComponents);
|
|
|
|
if (fileComponents.empty()) {
|
|
return dir;
|
|
}
|
|
if (fileComponents[0] != "") {
|
|
// File is not a relative path.
|
|
return file;
|
|
}
|
|
|
|
std::vector<std::string>::iterator i = fileComponents.begin() + 1;
|
|
while (i != fileComponents.end() && *i == ".." && dirComponents.size() > 1) {
|
|
++i; // Remove ".." file component.
|
|
dirComponents.pop_back(); // Remove last dir component.
|
|
}
|
|
|
|
dirComponents.insert(dirComponents.end(), i, fileComponents.end());
|
|
return cmSystemTools::JoinPath(dirComponents);
|
|
}
|
|
|
|
#ifdef CMAKE_BUILD_WITH_CMAKE
|
|
bool cmSystemTools::UnsetEnv(const char* value)
|
|
{
|
|
#if !defined(HAVE_UNSETENV)
|
|
std::string var = value;
|
|
var += "=";
|
|
return cmSystemTools::PutEnv(var.c_str());
|
|
#else
|
|
unsetenv(value);
|
|
return true;
|
|
#endif
|
|
}
|
|
|
|
std::vector<std::string> cmSystemTools::GetEnvironmentVariables()
|
|
{
|
|
std::vector<std::string> env;
|
|
int cc;
|
|
for (cc = 0; environ[cc]; ++cc) {
|
|
env.push_back(environ[cc]);
|
|
}
|
|
return env;
|
|
}
|
|
|
|
void cmSystemTools::AppendEnv(std::vector<std::string> const& env)
|
|
{
|
|
for (std::vector<std::string>::const_iterator eit = env.begin();
|
|
eit != env.end(); ++eit) {
|
|
cmSystemTools::PutEnv(*eit);
|
|
}
|
|
}
|
|
|
|
cmSystemTools::SaveRestoreEnvironment::SaveRestoreEnvironment()
|
|
{
|
|
this->Env = cmSystemTools::GetEnvironmentVariables();
|
|
}
|
|
|
|
cmSystemTools::SaveRestoreEnvironment::~SaveRestoreEnvironment()
|
|
{
|
|
// First clear everything in the current environment:
|
|
std::vector<std::string> currentEnv = GetEnvironmentVariables();
|
|
for (std::vector<std::string>::const_iterator eit = currentEnv.begin();
|
|
eit != currentEnv.end(); ++eit) {
|
|
std::string var(*eit);
|
|
|
|
std::string::size_type pos = var.find('=');
|
|
if (pos != std::string::npos) {
|
|
var = var.substr(0, pos);
|
|
}
|
|
|
|
cmSystemTools::UnsetEnv(var.c_str());
|
|
}
|
|
|
|
// Then put back each entry from the original environment:
|
|
cmSystemTools::AppendEnv(this->Env);
|
|
}
|
|
#endif
|
|
|
|
void cmSystemTools::EnableVSConsoleOutput()
|
|
{
|
|
#ifdef _WIN32
|
|
// Visual Studio 8 2005 (devenv.exe or VCExpress.exe) will not
|
|
// display output to the console unless this environment variable is
|
|
// set. We need it to capture the output of these build tools.
|
|
// Note for future work that one could pass "/out \\.\pipe\NAME" to
|
|
// either of these executables where NAME is created with
|
|
// CreateNamedPipe. This would bypass the internal buffering of the
|
|
// output and allow it to be captured on the fly.
|
|
cmSystemTools::PutEnv("vsconsoleoutput=1");
|
|
|
|
#ifdef CMAKE_BUILD_WITH_CMAKE
|
|
// VS sets an environment variable to tell MS tools like "cl" to report
|
|
// output through a backdoor pipe instead of stdout/stderr. Unset the
|
|
// environment variable to close this backdoor for any path of process
|
|
// invocations that passes through CMake so we can capture the output.
|
|
cmSystemTools::UnsetEnv("VS_UNICODE_OUTPUT");
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
bool cmSystemTools::IsPathToFramework(const char* path)
|
|
{
|
|
return (cmSystemTools::FileIsFullPath(path) &&
|
|
cmHasLiteralSuffix(path, ".framework"));
|
|
}
|
|
|
|
bool cmSystemTools::CreateTar(const char* outFileName,
|
|
const std::vector<std::string>& files,
|
|
cmTarCompression compressType, bool verbose,
|
|
std::string const& mtime,
|
|
std::string const& format)
|
|
{
|
|
#if defined(CMAKE_BUILD_WITH_CMAKE)
|
|
std::string cwd = cmSystemTools::GetCurrentWorkingDirectory();
|
|
cmsys::ofstream fout(outFileName, std::ios::out | std::ios::binary);
|
|
if (!fout) {
|
|
std::string e = "Cannot open output file \"";
|
|
e += outFileName;
|
|
e += "\": ";
|
|
e += cmSystemTools::GetLastSystemError();
|
|
cmSystemTools::Error(e.c_str());
|
|
return false;
|
|
}
|
|
cmArchiveWrite::Compress compress = cmArchiveWrite::CompressNone;
|
|
switch (compressType) {
|
|
case TarCompressGZip:
|
|
compress = cmArchiveWrite::CompressGZip;
|
|
break;
|
|
case TarCompressBZip2:
|
|
compress = cmArchiveWrite::CompressBZip2;
|
|
break;
|
|
case TarCompressXZ:
|
|
compress = cmArchiveWrite::CompressXZ;
|
|
break;
|
|
case TarCompressNone:
|
|
compress = cmArchiveWrite::CompressNone;
|
|
break;
|
|
}
|
|
|
|
cmArchiveWrite a(fout, compress, format.empty() ? "paxr" : format);
|
|
|
|
a.SetMTime(mtime);
|
|
a.SetVerbose(verbose);
|
|
for (std::vector<std::string>::const_iterator i = files.begin();
|
|
i != files.end(); ++i) {
|
|
std::string path = *i;
|
|
if (cmSystemTools::FileIsFullPath(path.c_str())) {
|
|
// Get the relative path to the file.
|
|
path = cmSystemTools::RelativePath(cwd.c_str(), path.c_str());
|
|
}
|
|
if (!a.Add(path)) {
|
|
break;
|
|
}
|
|
}
|
|
if (!a) {
|
|
cmSystemTools::Error(a.GetError().c_str());
|
|
return false;
|
|
}
|
|
return true;
|
|
#else
|
|
(void)outFileName;
|
|
(void)files;
|
|
(void)verbose;
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
#if defined(CMAKE_BUILD_WITH_CMAKE)
|
|
namespace {
|
|
#define BSDTAR_FILESIZE_PRINTF "%lu"
|
|
#define BSDTAR_FILESIZE_TYPE unsigned long
|
|
void list_item_verbose(FILE* out, struct archive_entry* entry)
|
|
{
|
|
char tmp[100];
|
|
size_t w;
|
|
const char* p;
|
|
const char* fmt;
|
|
time_t tim;
|
|
static time_t now;
|
|
size_t u_width = 6;
|
|
size_t gs_width = 13;
|
|
|
|
/*
|
|
* We avoid collecting the entire list in memory at once by
|
|
* listing things as we see them. However, that also means we can't
|
|
* just pre-compute the field widths. Instead, we start with guesses
|
|
* and just widen them as necessary. These numbers are completely
|
|
* arbitrary.
|
|
*/
|
|
if (!now) {
|
|
time(&now);
|
|
}
|
|
fprintf(out, "%s %d ", archive_entry_strmode(entry),
|
|
archive_entry_nlink(entry));
|
|
|
|
/* Use uname if it's present, else uid. */
|
|
p = archive_entry_uname(entry);
|
|
if ((p == CM_NULLPTR) || (*p == '\0')) {
|
|
sprintf(tmp, "%lu ", (unsigned long)archive_entry_uid(entry));
|
|
p = tmp;
|
|
}
|
|
w = strlen(p);
|
|
if (w > u_width) {
|
|
u_width = w;
|
|
}
|
|
fprintf(out, "%-*s ", (int)u_width, p);
|
|
/* Use gname if it's present, else gid. */
|
|
p = archive_entry_gname(entry);
|
|
if (p != CM_NULLPTR && p[0] != '\0') {
|
|
fprintf(out, "%s", p);
|
|
w = strlen(p);
|
|
} else {
|
|
sprintf(tmp, "%lu", (unsigned long)archive_entry_gid(entry));
|
|
w = strlen(tmp);
|
|
fprintf(out, "%s", tmp);
|
|
}
|
|
|
|
/*
|
|
* Print device number or file size, right-aligned so as to make
|
|
* total width of group and devnum/filesize fields be gs_width.
|
|
* If gs_width is too small, grow it.
|
|
*/
|
|
if (archive_entry_filetype(entry) == AE_IFCHR ||
|
|
archive_entry_filetype(entry) == AE_IFBLK) {
|
|
sprintf(tmp, "%lu,%lu", (unsigned long)archive_entry_rdevmajor(entry),
|
|
(unsigned long)archive_entry_rdevminor(entry));
|
|
} else {
|
|
/*
|
|
* Note the use of platform-dependent macros to format
|
|
* the filesize here. We need the format string and the
|
|
* corresponding type for the cast.
|
|
*/
|
|
sprintf(tmp, BSDTAR_FILESIZE_PRINTF,
|
|
(BSDTAR_FILESIZE_TYPE)archive_entry_size(entry));
|
|
}
|
|
if (w + strlen(tmp) >= gs_width) {
|
|
gs_width = w + strlen(tmp) + 1;
|
|
}
|
|
fprintf(out, "%*s", (int)(gs_width - w), tmp);
|
|
|
|
/* Format the time using 'ls -l' conventions. */
|
|
tim = archive_entry_mtime(entry);
|
|
#define HALF_YEAR ((time_t)365 * 86400 / 2)
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
/* Windows' strftime function does not support %e format. */
|
|
#define DAY_FMT "%d"
|
|
#else
|
|
#define DAY_FMT "%e" /* Day number without leading zeros */
|
|
#endif
|
|
if (tim < now - HALF_YEAR || tim > now + HALF_YEAR) {
|
|
fmt = DAY_FMT " %b %Y";
|
|
} else {
|
|
fmt = DAY_FMT " %b %H:%M";
|
|
}
|
|
strftime(tmp, sizeof(tmp), fmt, localtime(&tim));
|
|
fprintf(out, " %s ", tmp);
|
|
fprintf(out, "%s", cm_archive_entry_pathname(entry).c_str());
|
|
|
|
/* Extra information for links. */
|
|
if (archive_entry_hardlink(entry)) /* Hard link */
|
|
{
|
|
fprintf(out, " link to %s", archive_entry_hardlink(entry));
|
|
} else if (archive_entry_symlink(entry)) /* Symbolic link */
|
|
{
|
|
fprintf(out, " -> %s", archive_entry_symlink(entry));
|
|
}
|
|
fflush(out);
|
|
}
|
|
|
|
long copy_data(struct archive* ar, struct archive* aw)
|
|
{
|
|
long r;
|
|
const void* buff;
|
|
size_t size;
|
|
#if defined(ARCHIVE_VERSION_NUMBER) && ARCHIVE_VERSION_NUMBER >= 3000000
|
|
__LA_INT64_T offset;
|
|
#else
|
|
off_t offset;
|
|
#endif
|
|
|
|
for (;;) {
|
|
r = archive_read_data_block(ar, &buff, &size, &offset);
|
|
if (r == ARCHIVE_EOF) {
|
|
return (ARCHIVE_OK);
|
|
}
|
|
if (r != ARCHIVE_OK) {
|
|
return (r);
|
|
}
|
|
r = archive_write_data_block(aw, buff, size, offset);
|
|
if (r != ARCHIVE_OK) {
|
|
cmSystemTools::Message("archive_write_data_block()",
|
|
archive_error_string(aw));
|
|
return (r);
|
|
}
|
|
}
|
|
#if !defined(__clang__) && !defined(__HP_aCC)
|
|
return r; /* this should not happen but it quiets some compilers */
|
|
#endif
|
|
}
|
|
|
|
bool extract_tar(const char* outFileName, bool verbose, bool extract)
|
|
{
|
|
cmLocaleRAII localeRAII;
|
|
static_cast<void>(localeRAII);
|
|
struct archive* a = archive_read_new();
|
|
struct archive* ext = archive_write_disk_new();
|
|
archive_read_support_filter_all(a);
|
|
archive_read_support_format_all(a);
|
|
struct archive_entry* entry;
|
|
int r = cm_archive_read_open_file(a, outFileName, 10240);
|
|
if (r) {
|
|
cmSystemTools::Error("Problem with archive_read_open_file(): ",
|
|
archive_error_string(a));
|
|
archive_write_free(ext);
|
|
archive_read_close(a);
|
|
return false;
|
|
}
|
|
for (;;) {
|
|
r = archive_read_next_header(a, &entry);
|
|
if (r == ARCHIVE_EOF) {
|
|
break;
|
|
}
|
|
if (r != ARCHIVE_OK) {
|
|
cmSystemTools::Error("Problem with archive_read_next_header(): ",
|
|
archive_error_string(a));
|
|
break;
|
|
}
|
|
if (verbose) {
|
|
if (extract) {
|
|
cmSystemTools::Stdout("x ");
|
|
cmSystemTools::Stdout(cm_archive_entry_pathname(entry).c_str());
|
|
} else {
|
|
list_item_verbose(stdout, entry);
|
|
}
|
|
cmSystemTools::Stdout("\n");
|
|
} else if (!extract) {
|
|
cmSystemTools::Stdout(cm_archive_entry_pathname(entry).c_str());
|
|
cmSystemTools::Stdout("\n");
|
|
}
|
|
if (extract) {
|
|
r = archive_write_disk_set_options(ext, ARCHIVE_EXTRACT_TIME);
|
|
if (r != ARCHIVE_OK) {
|
|
cmSystemTools::Error("Problem with archive_write_disk_set_options(): ",
|
|
archive_error_string(ext));
|
|
break;
|
|
}
|
|
|
|
r = archive_write_header(ext, entry);
|
|
if (r == ARCHIVE_OK) {
|
|
copy_data(a, ext);
|
|
r = archive_write_finish_entry(ext);
|
|
if (r != ARCHIVE_OK) {
|
|
cmSystemTools::Error("Problem with archive_write_finish_entry(): ",
|
|
archive_error_string(ext));
|
|
break;
|
|
}
|
|
}
|
|
#ifdef _WIN32
|
|
else if (const char* linktext = archive_entry_symlink(entry)) {
|
|
std::cerr << "cmake -E tar: warning: skipping symbolic link \""
|
|
<< cm_archive_entry_pathname(entry) << "\" -> \"" << linktext
|
|
<< "\"." << std::endl;
|
|
}
|
|
#endif
|
|
else {
|
|
cmSystemTools::Error("Problem with archive_write_header(): ",
|
|
archive_error_string(ext));
|
|
cmSystemTools::Error("Current file: ",
|
|
cm_archive_entry_pathname(entry).c_str());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
archive_write_free(ext);
|
|
archive_read_close(a);
|
|
archive_read_free(a);
|
|
return r == ARCHIVE_EOF || r == ARCHIVE_OK;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
bool cmSystemTools::ExtractTar(const char* outFileName, bool verbose)
|
|
{
|
|
#if defined(CMAKE_BUILD_WITH_CMAKE)
|
|
return extract_tar(outFileName, verbose, true);
|
|
#else
|
|
(void)outFileName;
|
|
(void)verbose;
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
bool cmSystemTools::ListTar(const char* outFileName, bool verbose)
|
|
{
|
|
#if defined(CMAKE_BUILD_WITH_CMAKE)
|
|
return extract_tar(outFileName, verbose, false);
|
|
#else
|
|
(void)outFileName;
|
|
(void)verbose;
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
int cmSystemTools::WaitForLine(cmsysProcess* process, std::string& line,
|
|
double timeout, std::vector<char>& out,
|
|
std::vector<char>& err)
|
|
{
|
|
line = "";
|
|
std::vector<char>::iterator outiter = out.begin();
|
|
std::vector<char>::iterator erriter = err.begin();
|
|
cmProcessOutput processOutput;
|
|
std::string strdata;
|
|
while (true) {
|
|
// Check for a newline in stdout.
|
|
for (; outiter != out.end(); ++outiter) {
|
|
if ((*outiter == '\r') && ((outiter + 1) == out.end())) {
|
|
break;
|
|
}
|
|
if (*outiter == '\n' || *outiter == '\0') {
|
|
std::vector<char>::size_type length = outiter - out.begin();
|
|
if (length > 1 && *(outiter - 1) == '\r') {
|
|
--length;
|
|
}
|
|
if (length > 0) {
|
|
line.append(&out[0], length);
|
|
}
|
|
out.erase(out.begin(), outiter + 1);
|
|
return cmsysProcess_Pipe_STDOUT;
|
|
}
|
|
}
|
|
|
|
// Check for a newline in stderr.
|
|
for (; erriter != err.end(); ++erriter) {
|
|
if ((*erriter == '\r') && ((erriter + 1) == err.end())) {
|
|
break;
|
|
}
|
|
if (*erriter == '\n' || *erriter == '\0') {
|
|
std::vector<char>::size_type length = erriter - err.begin();
|
|
if (length > 1 && *(erriter - 1) == '\r') {
|
|
--length;
|
|
}
|
|
if (length > 0) {
|
|
line.append(&err[0], length);
|
|
}
|
|
err.erase(err.begin(), erriter + 1);
|
|
return cmsysProcess_Pipe_STDERR;
|
|
}
|
|
}
|
|
|
|
// No newlines found. Wait for more data from the process.
|
|
int length;
|
|
char* data;
|
|
int pipe = cmsysProcess_WaitForData(process, &data, &length, &timeout);
|
|
if (pipe == cmsysProcess_Pipe_Timeout) {
|
|
// Timeout has been exceeded.
|
|
return pipe;
|
|
}
|
|
if (pipe == cmsysProcess_Pipe_STDOUT) {
|
|
processOutput.DecodeText(data, length, strdata, 1);
|
|
// Append to the stdout buffer.
|
|
std::vector<char>::size_type size = out.size();
|
|
out.insert(out.end(), strdata.begin(), strdata.end());
|
|
outiter = out.begin() + size;
|
|
} else if (pipe == cmsysProcess_Pipe_STDERR) {
|
|
processOutput.DecodeText(data, length, strdata, 2);
|
|
// Append to the stderr buffer.
|
|
std::vector<char>::size_type size = err.size();
|
|
err.insert(err.end(), strdata.begin(), strdata.end());
|
|
erriter = err.begin() + size;
|
|
} else if (pipe == cmsysProcess_Pipe_None) {
|
|
// Both stdout and stderr pipes have broken. Return leftover data.
|
|
processOutput.DecodeText(std::string(), strdata, 1);
|
|
if (!strdata.empty()) {
|
|
std::vector<char>::size_type size = out.size();
|
|
out.insert(out.end(), strdata.begin(), strdata.end());
|
|
outiter = out.begin() + size;
|
|
}
|
|
processOutput.DecodeText(std::string(), strdata, 2);
|
|
if (!strdata.empty()) {
|
|
std::vector<char>::size_type size = err.size();
|
|
err.insert(err.end(), strdata.begin(), strdata.end());
|
|
erriter = err.begin() + size;
|
|
}
|
|
if (!out.empty()) {
|
|
line.append(&out[0], outiter - out.begin());
|
|
out.erase(out.begin(), out.end());
|
|
return cmsysProcess_Pipe_STDOUT;
|
|
}
|
|
if (!err.empty()) {
|
|
line.append(&err[0], erriter - err.begin());
|
|
err.erase(err.begin(), err.end());
|
|
return cmsysProcess_Pipe_STDERR;
|
|
}
|
|
return cmsysProcess_Pipe_None;
|
|
}
|
|
}
|
|
}
|
|
|
|
void cmSystemTools::DoNotInheritStdPipes()
|
|
{
|
|
#ifdef _WIN32
|
|
// Check to see if we are attached to a console
|
|
// if so, then do not stop the inherited pipes
|
|
// or stdout and stderr will not show up in dos
|
|
// shell windows
|
|
CONSOLE_SCREEN_BUFFER_INFO hOutInfo;
|
|
HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
|
|
if (GetConsoleScreenBufferInfo(hOut, &hOutInfo)) {
|
|
return;
|
|
}
|
|
{
|
|
HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
|
|
DuplicateHandle(GetCurrentProcess(), out, GetCurrentProcess(), &out, 0,
|
|
FALSE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
|
|
SetStdHandle(STD_OUTPUT_HANDLE, out);
|
|
}
|
|
{
|
|
HANDLE out = GetStdHandle(STD_ERROR_HANDLE);
|
|
DuplicateHandle(GetCurrentProcess(), out, GetCurrentProcess(), &out, 0,
|
|
FALSE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
|
|
SetStdHandle(STD_ERROR_HANDLE, out);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
bool cmSystemTools::CopyFileTime(const char* fromFile, const char* toFile)
|
|
{
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
cmSystemToolsWindowsHandle hFrom = CreateFileW(
|
|
SystemTools::ConvertToWindowsExtendedPath(fromFile).c_str(), GENERIC_READ,
|
|
FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0);
|
|
cmSystemToolsWindowsHandle hTo = CreateFileW(
|
|
SystemTools::ConvertToWindowsExtendedPath(toFile).c_str(),
|
|
FILE_WRITE_ATTRIBUTES, 0, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0);
|
|
if (!hFrom || !hTo) {
|
|
return false;
|
|
}
|
|
FILETIME timeCreation;
|
|
FILETIME timeLastAccess;
|
|
FILETIME timeLastWrite;
|
|
if (!GetFileTime(hFrom, &timeCreation, &timeLastAccess, &timeLastWrite)) {
|
|
return false;
|
|
}
|
|
return SetFileTime(hTo, &timeCreation, &timeLastAccess, &timeLastWrite) != 0;
|
|
#else
|
|
struct stat fromStat;
|
|
if (stat(fromFile, &fromStat) < 0) {
|
|
return false;
|
|
}
|
|
|
|
struct utimbuf buf;
|
|
buf.actime = fromStat.st_atime;
|
|
buf.modtime = fromStat.st_mtime;
|
|
return utime(toFile, &buf) >= 0;
|
|
#endif
|
|
}
|
|
|
|
cmSystemToolsFileTime* cmSystemTools::FileTimeNew()
|
|
{
|
|
return new cmSystemToolsFileTime;
|
|
}
|
|
|
|
void cmSystemTools::FileTimeDelete(cmSystemToolsFileTime* t)
|
|
{
|
|
delete t;
|
|
}
|
|
|
|
bool cmSystemTools::FileTimeGet(const char* fname, cmSystemToolsFileTime* t)
|
|
{
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
cmSystemToolsWindowsHandle h = CreateFileW(
|
|
SystemTools::ConvertToWindowsExtendedPath(fname).c_str(), GENERIC_READ,
|
|
FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0);
|
|
if (!h) {
|
|
return false;
|
|
}
|
|
if (!GetFileTime(h, &t->timeCreation, &t->timeLastAccess,
|
|
&t->timeLastWrite)) {
|
|
return false;
|
|
}
|
|
#else
|
|
struct stat st;
|
|
if (stat(fname, &st) < 0) {
|
|
return false;
|
|
}
|
|
t->timeBuf.actime = st.st_atime;
|
|
t->timeBuf.modtime = st.st_mtime;
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
bool cmSystemTools::FileTimeSet(const char* fname, cmSystemToolsFileTime* t)
|
|
{
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
cmSystemToolsWindowsHandle h = CreateFileW(
|
|
SystemTools::ConvertToWindowsExtendedPath(fname).c_str(),
|
|
FILE_WRITE_ATTRIBUTES, 0, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0);
|
|
if (!h) {
|
|
return false;
|
|
}
|
|
return SetFileTime(h, &t->timeCreation, &t->timeLastAccess,
|
|
&t->timeLastWrite) != 0;
|
|
#else
|
|
return utime(fname, &t->timeBuf) >= 0;
|
|
#endif
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
#ifndef CRYPT_SILENT
|
|
#define CRYPT_SILENT 0x40 /* Not defined by VS 6 version of header. */
|
|
#endif
|
|
static int WinCryptRandom(void* data, size_t size)
|
|
{
|
|
int result = 0;
|
|
HCRYPTPROV hProvider = 0;
|
|
if (CryptAcquireContextW(&hProvider, 0, 0, PROV_RSA_FULL,
|
|
CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
|
|
result = CryptGenRandom(hProvider, (DWORD)size, (BYTE*)data) ? 1 : 0;
|
|
CryptReleaseContext(hProvider, 0);
|
|
}
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
unsigned int cmSystemTools::RandomSeed()
|
|
{
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
unsigned int seed = 0;
|
|
|
|
// Try using a real random source.
|
|
if (WinCryptRandom(&seed, sizeof(seed))) {
|
|
return seed;
|
|
}
|
|
|
|
// Fall back to the time and pid.
|
|
FILETIME ft;
|
|
GetSystemTimeAsFileTime(&ft);
|
|
unsigned int t1 = static_cast<unsigned int>(ft.dwHighDateTime);
|
|
unsigned int t2 = static_cast<unsigned int>(ft.dwLowDateTime);
|
|
unsigned int pid = static_cast<unsigned int>(GetCurrentProcessId());
|
|
return t1 ^ t2 ^ pid;
|
|
#else
|
|
union
|
|
{
|
|
unsigned int integer;
|
|
char bytes[sizeof(unsigned int)];
|
|
} seed;
|
|
|
|
// Try using a real random source.
|
|
cmsys::ifstream fin;
|
|
fin.rdbuf()->pubsetbuf(CM_NULLPTR, 0); // Unbuffered read.
|
|
fin.open("/dev/urandom");
|
|
if (fin.good() && fin.read(seed.bytes, sizeof(seed)) &&
|
|
fin.gcount() == sizeof(seed)) {
|
|
return seed.integer;
|
|
}
|
|
|
|
// Fall back to the time and pid.
|
|
struct timeval t;
|
|
gettimeofday(&t, CM_NULLPTR);
|
|
unsigned int pid = static_cast<unsigned int>(getpid());
|
|
unsigned int tv_sec = static_cast<unsigned int>(t.tv_sec);
|
|
unsigned int tv_usec = static_cast<unsigned int>(t.tv_usec);
|
|
// Since tv_usec never fills more than 11 bits we shift it to fill
|
|
// in the slow-changing high-order bits of tv_sec.
|
|
return tv_sec ^ (tv_usec << 21) ^ pid;
|
|
#endif
|
|
}
|
|
|
|
static std::string cmSystemToolsCMakeCommand;
|
|
static std::string cmSystemToolsCTestCommand;
|
|
static std::string cmSystemToolsCPackCommand;
|
|
static std::string cmSystemToolsCMakeCursesCommand;
|
|
static std::string cmSystemToolsCMakeGUICommand;
|
|
static std::string cmSystemToolsCMClDepsCommand;
|
|
static std::string cmSystemToolsCMakeRoot;
|
|
void cmSystemTools::FindCMakeResources(const char* argv0)
|
|
{
|
|
std::string exe_dir;
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
(void)argv0; // ignore this on windows
|
|
wchar_t modulepath[_MAX_PATH];
|
|
::GetModuleFileNameW(NULL, modulepath, sizeof(modulepath));
|
|
exe_dir =
|
|
cmSystemTools::GetFilenamePath(cmsys::Encoding::ToNarrow(modulepath));
|
|
#elif defined(__APPLE__)
|
|
(void)argv0; // ignore this on OS X
|
|
#define CM_EXE_PATH_LOCAL_SIZE 16384
|
|
char exe_path_local[CM_EXE_PATH_LOCAL_SIZE];
|
|
#if defined(MAC_OS_X_VERSION_10_3) && !defined(MAC_OS_X_VERSION_10_4)
|
|
unsigned long exe_path_size = CM_EXE_PATH_LOCAL_SIZE;
|
|
#else
|
|
uint32_t exe_path_size = CM_EXE_PATH_LOCAL_SIZE;
|
|
#endif
|
|
#undef CM_EXE_PATH_LOCAL_SIZE
|
|
char* exe_path = exe_path_local;
|
|
if (_NSGetExecutablePath(exe_path, &exe_path_size) < 0) {
|
|
exe_path = (char*)malloc(exe_path_size);
|
|
_NSGetExecutablePath(exe_path, &exe_path_size);
|
|
}
|
|
exe_dir =
|
|
cmSystemTools::GetFilenamePath(cmSystemTools::GetRealPath(exe_path));
|
|
if (exe_path != exe_path_local) {
|
|
free(exe_path);
|
|
}
|
|
if (cmSystemTools::GetFilenameName(exe_dir) == "MacOS") {
|
|
// The executable is inside an application bundle.
|
|
// Look for ..<CMAKE_BIN_DIR> (install tree) and then fall back to
|
|
// ../../../bin (build tree).
|
|
exe_dir = cmSystemTools::GetFilenamePath(exe_dir);
|
|
if (cmSystemTools::FileExists(exe_dir + CMAKE_BIN_DIR "/cmake")) {
|
|
exe_dir += CMAKE_BIN_DIR;
|
|
} else {
|
|
exe_dir = cmSystemTools::GetFilenamePath(exe_dir);
|
|
exe_dir = cmSystemTools::GetFilenamePath(exe_dir);
|
|
}
|
|
}
|
|
#else
|
|
std::string errorMsg;
|
|
std::string exe;
|
|
if (cmSystemTools::FindProgramPath(argv0, exe, errorMsg)) {
|
|
// remove symlinks
|
|
exe = cmSystemTools::GetRealPath(exe);
|
|
exe_dir = cmSystemTools::GetFilenamePath(exe);
|
|
} else {
|
|
// ???
|
|
}
|
|
#endif
|
|
exe_dir = cmSystemTools::GetActualCaseForPath(exe_dir);
|
|
cmSystemToolsCMakeCommand = exe_dir;
|
|
cmSystemToolsCMakeCommand += "/cmake";
|
|
cmSystemToolsCMakeCommand += cmSystemTools::GetExecutableExtension();
|
|
#ifndef CMAKE_BUILD_WITH_CMAKE
|
|
// The bootstrap cmake does not provide the other tools,
|
|
// so use the directory where they are about to be built.
|
|
exe_dir = CMAKE_BOOTSTRAP_BINARY_DIR "/bin";
|
|
#endif
|
|
cmSystemToolsCTestCommand = exe_dir;
|
|
cmSystemToolsCTestCommand += "/ctest";
|
|
cmSystemToolsCTestCommand += cmSystemTools::GetExecutableExtension();
|
|
cmSystemToolsCPackCommand = exe_dir;
|
|
cmSystemToolsCPackCommand += "/cpack";
|
|
cmSystemToolsCPackCommand += cmSystemTools::GetExecutableExtension();
|
|
cmSystemToolsCMakeGUICommand = exe_dir;
|
|
cmSystemToolsCMakeGUICommand += "/cmake-gui";
|
|
cmSystemToolsCMakeGUICommand += cmSystemTools::GetExecutableExtension();
|
|
if (!cmSystemTools::FileExists(cmSystemToolsCMakeGUICommand.c_str())) {
|
|
cmSystemToolsCMakeGUICommand = "";
|
|
}
|
|
cmSystemToolsCMakeCursesCommand = exe_dir;
|
|
cmSystemToolsCMakeCursesCommand += "/ccmake";
|
|
cmSystemToolsCMakeCursesCommand += cmSystemTools::GetExecutableExtension();
|
|
if (!cmSystemTools::FileExists(cmSystemToolsCMakeCursesCommand.c_str())) {
|
|
cmSystemToolsCMakeCursesCommand = "";
|
|
}
|
|
cmSystemToolsCMClDepsCommand = exe_dir;
|
|
cmSystemToolsCMClDepsCommand += "/cmcldeps";
|
|
cmSystemToolsCMClDepsCommand += cmSystemTools::GetExecutableExtension();
|
|
if (!cmSystemTools::FileExists(cmSystemToolsCMClDepsCommand.c_str())) {
|
|
cmSystemToolsCMClDepsCommand = "";
|
|
}
|
|
|
|
#ifdef CMAKE_BUILD_WITH_CMAKE
|
|
// Install tree has
|
|
// - "<prefix><CMAKE_BIN_DIR>/cmake"
|
|
// - "<prefix><CMAKE_DATA_DIR>"
|
|
if (cmHasSuffix(exe_dir, CMAKE_BIN_DIR)) {
|
|
std::string const prefix =
|
|
exe_dir.substr(0, exe_dir.size() - strlen(CMAKE_BIN_DIR));
|
|
cmSystemToolsCMakeRoot = prefix + CMAKE_DATA_DIR;
|
|
}
|
|
if (cmSystemToolsCMakeRoot.empty() ||
|
|
!cmSystemTools::FileExists(
|
|
(cmSystemToolsCMakeRoot + "/Modules/CMake.cmake").c_str())) {
|
|
// Build tree has "<build>/bin[/<config>]/cmake" and
|
|
// "<build>/CMakeFiles/CMakeSourceDir.txt".
|
|
std::string dir = cmSystemTools::GetFilenamePath(exe_dir);
|
|
std::string src_dir_txt = dir + "/CMakeFiles/CMakeSourceDir.txt";
|
|
cmsys::ifstream fin(src_dir_txt.c_str());
|
|
std::string src_dir;
|
|
if (fin && cmSystemTools::GetLineFromStream(fin, src_dir) &&
|
|
cmSystemTools::FileIsDirectory(src_dir)) {
|
|
cmSystemToolsCMakeRoot = src_dir;
|
|
} else {
|
|
dir = cmSystemTools::GetFilenamePath(dir);
|
|
src_dir_txt = dir + "/CMakeFiles/CMakeSourceDir.txt";
|
|
cmsys::ifstream fin2(src_dir_txt.c_str());
|
|
if (fin2 && cmSystemTools::GetLineFromStream(fin2, src_dir) &&
|
|
cmSystemTools::FileIsDirectory(src_dir)) {
|
|
cmSystemToolsCMakeRoot = src_dir;
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
// Bootstrap build knows its source.
|
|
cmSystemToolsCMakeRoot = CMAKE_BOOTSTRAP_SOURCE_DIR;
|
|
#endif
|
|
}
|
|
|
|
std::string const& cmSystemTools::GetCMakeCommand()
|
|
{
|
|
return cmSystemToolsCMakeCommand;
|
|
}
|
|
|
|
std::string const& cmSystemTools::GetCTestCommand()
|
|
{
|
|
return cmSystemToolsCTestCommand;
|
|
}
|
|
|
|
std::string const& cmSystemTools::GetCPackCommand()
|
|
{
|
|
return cmSystemToolsCPackCommand;
|
|
}
|
|
|
|
std::string const& cmSystemTools::GetCMakeCursesCommand()
|
|
{
|
|
return cmSystemToolsCMakeCursesCommand;
|
|
}
|
|
|
|
std::string const& cmSystemTools::GetCMakeGUICommand()
|
|
{
|
|
return cmSystemToolsCMakeGUICommand;
|
|
}
|
|
|
|
std::string const& cmSystemTools::GetCMClDepsCommand()
|
|
{
|
|
return cmSystemToolsCMClDepsCommand;
|
|
}
|
|
|
|
std::string const& cmSystemTools::GetCMakeRoot()
|
|
{
|
|
return cmSystemToolsCMakeRoot;
|
|
}
|
|
|
|
void cmSystemTools::MakefileColorEcho(int color, const char* message,
|
|
bool newline, bool enabled)
|
|
{
|
|
// On some platforms (an MSYS prompt) cmsysTerminal may not be able
|
|
// to determine whether the stream is displayed on a tty. In this
|
|
// case it assumes no unless we tell it otherwise. Since we want
|
|
// color messages to be displayed for users we will assume yes.
|
|
// However, we can test for some situations when the answer is most
|
|
// likely no.
|
|
int assumeTTY = cmsysTerminal_Color_AssumeTTY;
|
|
if (cmSystemTools::HasEnv("DART_TEST_FROM_DART") ||
|
|
cmSystemTools::HasEnv("DASHBOARD_TEST_FROM_CTEST") ||
|
|
cmSystemTools::HasEnv("CTEST_INTERACTIVE_DEBUG_MODE")) {
|
|
// Avoid printing color escapes during dashboard builds.
|
|
assumeTTY = 0;
|
|
}
|
|
|
|
if (enabled && color != cmsysTerminal_Color_Normal) {
|
|
// Print with color. Delay the newline until later so that
|
|
// all color restore sequences appear before it.
|
|
cmsysTerminal_cfprintf(color | assumeTTY, stdout, "%s", message);
|
|
} else {
|
|
// Color is disabled. Print without color.
|
|
fprintf(stdout, "%s", message);
|
|
}
|
|
|
|
if (newline) {
|
|
fprintf(stdout, "\n");
|
|
}
|
|
}
|
|
|
|
bool cmSystemTools::GuessLibrarySOName(std::string const& fullPath,
|
|
std::string& soname)
|
|
{
|
|
// For ELF shared libraries use a real parser to get the correct
|
|
// soname.
|
|
#if defined(CMAKE_USE_ELF_PARSER)
|
|
cmELF elf(fullPath.c_str());
|
|
if (elf) {
|
|
return elf.GetSOName(soname);
|
|
}
|
|
#endif
|
|
|
|
// If the file is not a symlink we have no guess for its soname.
|
|
if (!cmSystemTools::FileIsSymlink(fullPath)) {
|
|
return false;
|
|
}
|
|
if (!cmSystemTools::ReadSymlink(fullPath, soname)) {
|
|
return false;
|
|
}
|
|
|
|
// If the symlink has a path component we have no guess for the soname.
|
|
if (!cmSystemTools::GetFilenamePath(soname).empty()) {
|
|
return false;
|
|
}
|
|
|
|
// If the symlink points at an extended version of the same name
|
|
// assume it is the soname.
|
|
std::string name = cmSystemTools::GetFilenameName(fullPath);
|
|
return soname.length() > name.length() &&
|
|
soname.compare(0, name.length(), name) == 0;
|
|
}
|
|
|
|
bool cmSystemTools::GuessLibraryInstallName(std::string const& fullPath,
|
|
std::string& soname)
|
|
{
|
|
#if defined(CMAKE_USE_MACH_PARSER)
|
|
cmMachO macho(fullPath.c_str());
|
|
if (macho) {
|
|
return macho.GetInstallName(soname);
|
|
}
|
|
#else
|
|
(void)fullPath;
|
|
(void)soname;
|
|
#endif
|
|
|
|
return false;
|
|
}
|
|
|
|
#if defined(CMAKE_USE_ELF_PARSER)
|
|
std::string::size_type cmSystemToolsFindRPath(std::string const& have,
|
|
std::string const& want)
|
|
{
|
|
std::string::size_type pos = 0;
|
|
while (pos < have.size()) {
|
|
// Look for an occurrence of the string.
|
|
std::string::size_type const beg = have.find(want, pos);
|
|
if (beg == std::string::npos) {
|
|
return std::string::npos;
|
|
}
|
|
|
|
// Make sure it is separated from preceding entries.
|
|
if (beg > 0 && have[beg - 1] != ':') {
|
|
pos = beg + 1;
|
|
continue;
|
|
}
|
|
|
|
// Make sure it is separated from following entries.
|
|
std::string::size_type const end = beg + want.size();
|
|
if (end < have.size() && have[end] != ':') {
|
|
pos = beg + 1;
|
|
continue;
|
|
}
|
|
|
|
// Return the position of the path portion.
|
|
return beg;
|
|
}
|
|
|
|
// The desired rpath was not found.
|
|
return std::string::npos;
|
|
}
|
|
#endif
|
|
|
|
#if defined(CMAKE_USE_ELF_PARSER)
|
|
struct cmSystemToolsRPathInfo
|
|
{
|
|
unsigned long Position;
|
|
unsigned long Size;
|
|
std::string Name;
|
|
std::string Value;
|
|
};
|
|
#endif
|
|
|
|
bool cmSystemTools::ChangeRPath(std::string const& file,
|
|
std::string const& oldRPath,
|
|
std::string const& newRPath, std::string* emsg,
|
|
bool* changed)
|
|
{
|
|
#if defined(CMAKE_USE_ELF_PARSER)
|
|
if (changed) {
|
|
*changed = false;
|
|
}
|
|
int rp_count = 0;
|
|
bool remove_rpath = true;
|
|
cmSystemToolsRPathInfo rp[2];
|
|
{
|
|
// Parse the ELF binary.
|
|
cmELF elf(file.c_str());
|
|
|
|
// Get the RPATH and RUNPATH entries from it.
|
|
int se_count = 0;
|
|
cmELF::StringEntry const* se[2] = { CM_NULLPTR, CM_NULLPTR };
|
|
const char* se_name[2] = { CM_NULLPTR, CM_NULLPTR };
|
|
if (cmELF::StringEntry const* se_rpath = elf.GetRPath()) {
|
|
se[se_count] = se_rpath;
|
|
se_name[se_count] = "RPATH";
|
|
++se_count;
|
|
}
|
|
if (cmELF::StringEntry const* se_runpath = elf.GetRunPath()) {
|
|
se[se_count] = se_runpath;
|
|
se_name[se_count] = "RUNPATH";
|
|
++se_count;
|
|
}
|
|
if (se_count == 0) {
|
|
if (newRPath.empty()) {
|
|
// The new rpath is empty and there is no rpath anyway so it is
|
|
// okay.
|
|
return true;
|
|
}
|
|
if (emsg) {
|
|
*emsg = "No valid ELF RPATH or RUNPATH entry exists in the file; ";
|
|
*emsg += elf.GetErrorMessage();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
for (int i = 0; i < se_count; ++i) {
|
|
// If both RPATH and RUNPATH refer to the same string literal it
|
|
// needs to be changed only once.
|
|
if (rp_count && rp[0].Position == se[i]->Position) {
|
|
continue;
|
|
}
|
|
|
|
// Make sure the current rpath contains the old rpath.
|
|
std::string::size_type pos =
|
|
cmSystemToolsFindRPath(se[i]->Value, oldRPath);
|
|
if (pos == std::string::npos) {
|
|
// If it contains the new rpath instead then it is okay.
|
|
if (cmSystemToolsFindRPath(se[i]->Value, newRPath) !=
|
|
std::string::npos) {
|
|
remove_rpath = false;
|
|
continue;
|
|
}
|
|
if (emsg) {
|
|
std::ostringstream e;
|
|
/* clang-format off */
|
|
e << "The current " << se_name[i] << " is:\n"
|
|
<< " " << se[i]->Value << "\n"
|
|
<< "which does not contain:\n"
|
|
<< " " << oldRPath << "\n"
|
|
<< "as was expected.";
|
|
/* clang-format on */
|
|
*emsg = e.str();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Store information about the entry in the file.
|
|
rp[rp_count].Position = se[i]->Position;
|
|
rp[rp_count].Size = se[i]->Size;
|
|
rp[rp_count].Name = se_name[i];
|
|
|
|
std::string::size_type prefix_len = pos;
|
|
|
|
// If oldRPath was at the end of the file's RPath, and newRPath is empty,
|
|
// we should remove the unnecessary ':' at the end.
|
|
if (newRPath.empty() && pos > 0 && se[i]->Value[pos - 1] == ':' &&
|
|
pos + oldRPath.length() == se[i]->Value.length()) {
|
|
prefix_len--;
|
|
}
|
|
|
|
// Construct the new value which preserves the part of the path
|
|
// not being changed.
|
|
rp[rp_count].Value = se[i]->Value.substr(0, prefix_len);
|
|
rp[rp_count].Value += newRPath;
|
|
rp[rp_count].Value += se[i]->Value.substr(pos + oldRPath.length());
|
|
|
|
if (!rp[rp_count].Value.empty()) {
|
|
remove_rpath = false;
|
|
}
|
|
|
|
// Make sure there is enough room to store the new rpath and at
|
|
// least one null terminator.
|
|
if (rp[rp_count].Size < rp[rp_count].Value.length() + 1) {
|
|
if (emsg) {
|
|
*emsg = "The replacement path is too long for the ";
|
|
*emsg += se_name[i];
|
|
*emsg += " entry.";
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// This entry is ready for update.
|
|
++rp_count;
|
|
}
|
|
}
|
|
|
|
// If no runtime path needs to be changed, we are done.
|
|
if (rp_count == 0) {
|
|
return true;
|
|
}
|
|
|
|
// If the resulting rpath is empty, just remove the entire entry instead.
|
|
if (remove_rpath) {
|
|
return cmSystemTools::RemoveRPath(file, emsg, changed);
|
|
}
|
|
|
|
{
|
|
// Open the file for update.
|
|
cmsys::ofstream f(file.c_str(),
|
|
std::ios::in | std::ios::out | std::ios::binary);
|
|
if (!f) {
|
|
if (emsg) {
|
|
*emsg = "Error opening file for update.";
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Store the new RPATH and RUNPATH strings.
|
|
for (int i = 0; i < rp_count; ++i) {
|
|
// Seek to the RPATH position.
|
|
if (!f.seekp(rp[i].Position)) {
|
|
if (emsg) {
|
|
*emsg = "Error seeking to ";
|
|
*emsg += rp[i].Name;
|
|
*emsg += " position.";
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Write the new rpath. Follow it with enough null terminators to
|
|
// fill the string table entry.
|
|
f << rp[i].Value;
|
|
for (unsigned long j = rp[i].Value.length(); j < rp[i].Size; ++j) {
|
|
f << '\0';
|
|
}
|
|
|
|
// Make sure it wrote correctly.
|
|
if (!f) {
|
|
if (emsg) {
|
|
*emsg = "Error writing the new ";
|
|
*emsg += rp[i].Name;
|
|
*emsg += " string to the file.";
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Everything was updated successfully.
|
|
if (changed) {
|
|
*changed = true;
|
|
}
|
|
return true;
|
|
#else
|
|
(void)file;
|
|
(void)oldRPath;
|
|
(void)newRPath;
|
|
(void)emsg;
|
|
(void)changed;
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
bool cmSystemTools::VersionCompare(cmSystemTools::CompareOp op,
|
|
const char* lhss, const char* rhss)
|
|
{
|
|
const char* endl = lhss;
|
|
const char* endr = rhss;
|
|
unsigned long lhs, rhs;
|
|
|
|
while (((*endl >= '0') && (*endl <= '9')) ||
|
|
((*endr >= '0') && (*endr <= '9'))) {
|
|
// Do component-wise comparison.
|
|
lhs = strtoul(endl, const_cast<char**>(&endl), 10);
|
|
rhs = strtoul(endr, const_cast<char**>(&endr), 10);
|
|
|
|
if (lhs < rhs) {
|
|
// lhs < rhs, so true if operation is LESS
|
|
return (op & cmSystemTools::OP_LESS) != 0;
|
|
}
|
|
if (lhs > rhs) {
|
|
// lhs > rhs, so true if operation is GREATER
|
|
return (op & cmSystemTools::OP_GREATER) != 0;
|
|
}
|
|
|
|
if (*endr == '.') {
|
|
endr++;
|
|
}
|
|
|
|
if (*endl == '.') {
|
|
endl++;
|
|
}
|
|
}
|
|
// lhs == rhs, so true if operation is EQUAL
|
|
return (op & cmSystemTools::OP_EQUAL) != 0;
|
|
}
|
|
|
|
bool cmSystemTools::VersionCompareEqual(std::string const& lhs,
|
|
std::string const& rhs)
|
|
{
|
|
return cmSystemTools::VersionCompare(cmSystemTools::OP_EQUAL, lhs.c_str(),
|
|
rhs.c_str());
|
|
}
|
|
|
|
bool cmSystemTools::VersionCompareGreater(std::string const& lhs,
|
|
std::string const& rhs)
|
|
{
|
|
return cmSystemTools::VersionCompare(cmSystemTools::OP_GREATER, lhs.c_str(),
|
|
rhs.c_str());
|
|
}
|
|
|
|
bool cmSystemTools::VersionCompareGreaterEq(std::string const& lhs,
|
|
std::string const& rhs)
|
|
{
|
|
return cmSystemTools::VersionCompare(cmSystemTools::OP_GREATER_EQUAL,
|
|
lhs.c_str(), rhs.c_str());
|
|
}
|
|
|
|
static size_t cm_strverscmp_find_first_difference_or_end(const char* lhs,
|
|
const char* rhs)
|
|
{
|
|
size_t i = 0;
|
|
/* Step forward until we find a difference or both strings end together.
|
|
The difference may lie on the null-terminator of one string. */
|
|
while (lhs[i] == rhs[i] && lhs[i] != 0) {
|
|
++i;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static size_t cm_strverscmp_find_digits_begin(const char* s, size_t i)
|
|
{
|
|
/* Step back until we are not preceded by a digit. */
|
|
while (i > 0 && isdigit(s[i - 1])) {
|
|
--i;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static size_t cm_strverscmp_find_digits_end(const char* s, size_t i)
|
|
{
|
|
/* Step forward over digits. */
|
|
while (isdigit(s[i])) {
|
|
++i;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static size_t cm_strverscmp_count_leading_zeros(const char* s, size_t b)
|
|
{
|
|
size_t i = b;
|
|
/* Step forward over zeros that are followed by another digit. */
|
|
while (s[i] == '0' && isdigit(s[i + 1])) {
|
|
++i;
|
|
}
|
|
return i - b;
|
|
}
|
|
|
|
static int cm_strverscmp(const char* lhs, const char* rhs)
|
|
{
|
|
size_t const i = cm_strverscmp_find_first_difference_or_end(lhs, rhs);
|
|
if (lhs[i] != rhs[i]) {
|
|
/* The strings differ starting at 'i'. Check for a digit sequence. */
|
|
size_t const b = cm_strverscmp_find_digits_begin(lhs, i);
|
|
if (b != i || (isdigit(lhs[i]) && isdigit(rhs[i]))) {
|
|
/* A digit sequence starts at 'b', preceding or at 'i'. */
|
|
|
|
/* Look for leading zeros, implying a leading decimal point. */
|
|
size_t const lhs_zeros = cm_strverscmp_count_leading_zeros(lhs, b);
|
|
size_t const rhs_zeros = cm_strverscmp_count_leading_zeros(rhs, b);
|
|
if (lhs_zeros != rhs_zeros) {
|
|
/* The side with more leading zeros orders first. */
|
|
return rhs_zeros > lhs_zeros ? 1 : -1;
|
|
}
|
|
if (lhs_zeros == 0) {
|
|
/* No leading zeros; compare digit sequence lengths. */
|
|
size_t const lhs_end = cm_strverscmp_find_digits_end(lhs, i);
|
|
size_t const rhs_end = cm_strverscmp_find_digits_end(rhs, i);
|
|
if (lhs_end != rhs_end) {
|
|
/* The side with fewer digits orders first. */
|
|
return lhs_end > rhs_end ? 1 : -1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Ordering was not decided by digit sequence lengths; compare bytes. */
|
|
return lhs[i] - rhs[i];
|
|
}
|
|
|
|
int cmSystemTools::strverscmp(std::string const& lhs, std::string const& rhs)
|
|
{
|
|
return cm_strverscmp(lhs.c_str(), rhs.c_str());
|
|
}
|
|
|
|
bool cmSystemTools::RemoveRPath(std::string const& file, std::string* emsg,
|
|
bool* removed)
|
|
{
|
|
#if defined(CMAKE_USE_ELF_PARSER)
|
|
if (removed) {
|
|
*removed = false;
|
|
}
|
|
int zeroCount = 0;
|
|
unsigned long zeroPosition[2] = { 0, 0 };
|
|
unsigned long zeroSize[2] = { 0, 0 };
|
|
unsigned long bytesBegin = 0;
|
|
std::vector<char> bytes;
|
|
{
|
|
// Parse the ELF binary.
|
|
cmELF elf(file.c_str());
|
|
|
|
// Get the RPATH and RUNPATH entries from it and sort them by index
|
|
// in the dynamic section header.
|
|
int se_count = 0;
|
|
cmELF::StringEntry const* se[2] = { CM_NULLPTR, CM_NULLPTR };
|
|
if (cmELF::StringEntry const* se_rpath = elf.GetRPath()) {
|
|
se[se_count++] = se_rpath;
|
|
}
|
|
if (cmELF::StringEntry const* se_runpath = elf.GetRunPath()) {
|
|
se[se_count++] = se_runpath;
|
|
}
|
|
if (se_count == 0) {
|
|
// There is no RPATH or RUNPATH anyway.
|
|
return true;
|
|
}
|
|
if (se_count == 2 && se[1]->IndexInSection < se[0]->IndexInSection) {
|
|
std::swap(se[0], se[1]);
|
|
}
|
|
|
|
// Obtain a copy of the dynamic entries
|
|
cmELF::DynamicEntryList dentries = elf.GetDynamicEntries();
|
|
if (dentries.empty()) {
|
|
// This should happen only for invalid ELF files where a DT_NULL
|
|
// appears before the end of the table.
|
|
if (emsg) {
|
|
*emsg = "DYNAMIC section contains a DT_NULL before the end.";
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Save information about the string entries to be zeroed.
|
|
zeroCount = se_count;
|
|
for (int i = 0; i < se_count; ++i) {
|
|
zeroPosition[i] = se[i]->Position;
|
|
zeroSize[i] = se[i]->Size;
|
|
}
|
|
|
|
// Get size of one DYNAMIC entry
|
|
unsigned long const sizeof_dentry =
|
|
elf.GetDynamicEntryPosition(1) - elf.GetDynamicEntryPosition(0);
|
|
|
|
// Adjust the entry list as necessary to remove the run path
|
|
unsigned long entriesErased = 0;
|
|
for (cmELF::DynamicEntryList::iterator it = dentries.begin();
|
|
it != dentries.end();) {
|
|
if (it->first == cmELF::TagRPath || it->first == cmELF::TagRunPath) {
|
|
it = dentries.erase(it);
|
|
entriesErased++;
|
|
continue;
|
|
}
|
|
if (cmELF::TagMipsRldMapRel != 0 &&
|
|
it->first == cmELF::TagMipsRldMapRel) {
|
|
// Background: debuggers need to know the "linker map" which contains
|
|
// the addresses each dynamic object is loaded at. Most arches use
|
|
// the DT_DEBUG tag which the dynamic linker writes to (directly) and
|
|
// contain the location of the linker map, however on MIPS the
|
|
// .dynamic section is always read-only so this is not possible. MIPS
|
|
// objects instead contain a DT_MIPS_RLD_MAP tag which contains the
|
|
// address where the dyanmic linker will write to (an indirect
|
|
// version of DT_DEBUG). Since this doesn't work when using PIE, a
|
|
// relative equivalent was created - DT_MIPS_RLD_MAP_REL. Since this
|
|
// version contains a relative offset, moving it changes the
|
|
// calculated address. This may cause the dyanmic linker to write
|
|
// into memory it should not be changing.
|
|
//
|
|
// To fix this, we adjust the value of DT_MIPS_RLD_MAP_REL here. If
|
|
// we move it up by n bytes, we add n bytes to the value of this tag.
|
|
it->second += entriesErased * sizeof_dentry;
|
|
}
|
|
|
|
it++;
|
|
}
|
|
|
|
// Encode new entries list
|
|
bytes = elf.EncodeDynamicEntries(dentries);
|
|
bytesBegin = elf.GetDynamicEntryPosition(0);
|
|
}
|
|
|
|
// Open the file for update.
|
|
cmsys::ofstream f(file.c_str(),
|
|
std::ios::in | std::ios::out | std::ios::binary);
|
|
if (!f) {
|
|
if (emsg) {
|
|
*emsg = "Error opening file for update.";
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Write the new DYNAMIC table header.
|
|
if (!f.seekp(bytesBegin)) {
|
|
if (emsg) {
|
|
*emsg = "Error seeking to DYNAMIC table header for RPATH.";
|
|
}
|
|
return false;
|
|
}
|
|
if (!f.write(&bytes[0], bytes.size())) {
|
|
if (emsg) {
|
|
*emsg = "Error replacing DYNAMIC table header.";
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Fill the RPATH and RUNPATH strings with zero bytes.
|
|
for (int i = 0; i < zeroCount; ++i) {
|
|
if (!f.seekp(zeroPosition[i])) {
|
|
if (emsg) {
|
|
*emsg = "Error seeking to RPATH position.";
|
|
}
|
|
return false;
|
|
}
|
|
for (unsigned long j = 0; j < zeroSize[i]; ++j) {
|
|
f << '\0';
|
|
}
|
|
if (!f) {
|
|
if (emsg) {
|
|
*emsg = "Error writing the empty rpath string to the file.";
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Everything was updated successfully.
|
|
if (removed) {
|
|
*removed = true;
|
|
}
|
|
return true;
|
|
#else
|
|
(void)file;
|
|
(void)emsg;
|
|
(void)removed;
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
bool cmSystemTools::CheckRPath(std::string const& file,
|
|
std::string const& newRPath)
|
|
{
|
|
#if defined(CMAKE_USE_ELF_PARSER)
|
|
// Parse the ELF binary.
|
|
cmELF elf(file.c_str());
|
|
|
|
// Get the RPATH or RUNPATH entry from it.
|
|
cmELF::StringEntry const* se = elf.GetRPath();
|
|
if (!se) {
|
|
se = elf.GetRunPath();
|
|
}
|
|
|
|
// Make sure the current rpath contains the new rpath.
|
|
if (newRPath.empty()) {
|
|
if (!se) {
|
|
return true;
|
|
}
|
|
} else {
|
|
if (se &&
|
|
cmSystemToolsFindRPath(se->Value, newRPath) != std::string::npos) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
#else
|
|
(void)file;
|
|
(void)newRPath;
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
bool cmSystemTools::RepeatedRemoveDirectory(const char* dir)
|
|
{
|
|
// Windows sometimes locks files temporarily so try a few times.
|
|
for (int i = 0; i < 10; ++i) {
|
|
if (cmSystemTools::RemoveADirectory(dir)) {
|
|
return true;
|
|
}
|
|
cmSystemTools::Delay(100);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
std::vector<std::string> cmSystemTools::tokenize(const std::string& str,
|
|
const std::string& sep)
|
|
{
|
|
std::vector<std::string> tokens;
|
|
std::string::size_type tokend = 0;
|
|
|
|
do {
|
|
std::string::size_type tokstart = str.find_first_not_of(sep, tokend);
|
|
if (tokstart == std::string::npos) {
|
|
break; // no more tokens
|
|
}
|
|
tokend = str.find_first_of(sep, tokstart);
|
|
if (tokend == std::string::npos) {
|
|
tokens.push_back(str.substr(tokstart));
|
|
} else {
|
|
tokens.push_back(str.substr(tokstart, tokend - tokstart));
|
|
}
|
|
} while (tokend != std::string::npos);
|
|
|
|
if (tokens.empty()) {
|
|
tokens.push_back("");
|
|
}
|
|
return tokens;
|
|
}
|
|
|
|
bool cmSystemTools::StringToLong(const char* str, long* value)
|
|
{
|
|
errno = 0;
|
|
char* endp;
|
|
*value = strtol(str, &endp, 10);
|
|
return (*endp == '\0') && (endp != str) && (errno == 0);
|
|
}
|
|
|
|
bool cmSystemTools::StringToULong(const char* str, unsigned long* value)
|
|
{
|
|
errno = 0;
|
|
char* endp;
|
|
*value = strtoul(str, &endp, 10);
|
|
return (*endp == '\0') && (endp != str) && (errno == 0);
|
|
}
|