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Fix conversion of group and user name to strings

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This commit is contained in:
Simon Quigley 2025-02-10 01:22:46 -06:00
parent d851f1ee8d
commit 9517f6d74c
1 changed files with 17 additions and 20 deletions
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37
cpp/utilities.cpp
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@ -404,6 +404,15 @@ std::vector<std::string> extract_files_excluded(const std::string& filepath) {
return files_excluded; return files_excluded;
} }
static const std::string clean_utf8(const char* name) {
if (!name) return "unknown";
try {
std::wstring_convert<std::codecvt_utf8<char32_t>, char32_t> converter;
converter.from_bytes(name);
return std::string(name);
} catch (const std::range_error&) return "unknown";
}
void create_tarball(const std::string &tarball_path, void create_tarball(const std::string &tarball_path,
const std::string &directory, const std::string &directory,
const std::vector<std::string> &exclusions, const std::vector<std::string> &exclusions,
@ -448,16 +457,10 @@ void create_tarball(const std::string &tarball_path,
std::string top_dir = base_dir_str + "/"; std::string top_dir = base_dir_str + "/";
struct stat file_stat; struct stat file_stat;
if (stat(top_dir.c_str(), &file_stat) == 0) { if (stat(top_dir.c_str(), &file_stat) == 0) {
if (struct passwd *pw = getpwuid(file_stat.st_uid)) { std::string uname = clean_utf8(getpwuid(file_stat.st_uid) ? getpwuid(file_stat.st_uid)->pw_name : "lugito");
if (char *name = (char *)malloc(strlen(pw->pw_name) + 1)) { std::string gname = clean_utf8(getgrgid(file_stat.st_gid) ? getgrgid(file_stat.st_gid)->gr_name : "lugito");
archive_entry_set_uname(entry, name); archive_entry_set_uname(entry, uname);
} archive_entry_set_gname(entry, gname);
}
if (struct group *gr = getgrgid(file_stat.st_gid)) {
if (char *name = (char *)malloc(strlen(gr->gr_name) + 1)) {
archive_entry_set_gname(entry, name);
}
}
archive_entry_set_uid(entry, file_stat.st_uid); archive_entry_set_uid(entry, file_stat.st_uid);
archive_entry_set_gid(entry, file_stat.st_gid); archive_entry_set_gid(entry, file_stat.st_gid);
archive_entry_set_perm(entry, file_stat.st_mode); archive_entry_set_perm(entry, file_stat.st_mode);
@ -529,16 +532,10 @@ void create_tarball(const std::string &tarball_path,
struct stat file_stat; struct stat file_stat;
if (stat(path.c_str(), &file_stat) == 0) { if (stat(path.c_str(), &file_stat) == 0) {
if (struct passwd *pw = getpwuid(file_stat.st_uid)) { std::string uname = clean_utf8(getpwuid(file_stat.st_uid) ? getpwuid(file_stat.st_uid)->pw_name : "lugito");
if (char *name = (char *)malloc(strlen(pw->pw_name) + 1)) { std::string gname = clean_utf8(getgrgid(file_stat.st_gid) ? getgrgid(file_stat.st_gid)->gr_name : "lugito");
archive_entry_set_uname(entry, name); archive_entry_set_uname(entry, uname);
} archive_entry_set_gname(entry, gname);
}
if (struct group *gr = getgrgid(file_stat.st_gid)) {
if (char *name = (char *)malloc(strlen(gr->gr_name) + 1)) {
archive_entry_set_gname(entry, name);
}
}
archive_entry_set_uid(entry, file_stat.st_uid); archive_entry_set_uid(entry, file_stat.st_uid);
archive_entry_set_gid(entry, file_stat.st_gid); archive_entry_set_gid(entry, file_stat.st_gid);
archive_entry_set_perm(entry, file_stat.st_mode); archive_entry_set_perm(entry, file_stat.st_mode);