You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
315 lines
7.9 KiB
315 lines
7.9 KiB
/*-
|
|
* Copyright (c) 2008 Jaakko Heinonen
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer
|
|
* in this position and unchanged.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifdef __FBSDID
|
|
__FBSDID("$FreeBSD$");
|
|
#endif
|
|
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <archive.h>
|
|
#include <archive_entry.h>
|
|
#include <assert.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sysexits.h>
|
|
#include <unistd.h>
|
|
|
|
#include "tree.h"
|
|
|
|
/* command line options */
|
|
static int b_opt; /* use alternative shar binary format */
|
|
static int r_opt; /* recurse into subdirectories */
|
|
static char *o_arg; /* output file name */
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
fprintf(stderr, "Usage: shar [-br] [-o filename] file ...\n");
|
|
exit(EX_USAGE);
|
|
}
|
|
|
|
/*
|
|
* Initialize archive structure and create a shar archive.
|
|
*/
|
|
static struct archive *
|
|
shar_create(void)
|
|
{
|
|
struct archive *a;
|
|
|
|
if ((a = archive_write_new()) == NULL)
|
|
errx(EXIT_FAILURE, "%s", archive_error_string(a));
|
|
|
|
if (b_opt)
|
|
archive_write_set_format_shar_dump(a);
|
|
else
|
|
archive_write_set_format_shar(a);
|
|
archive_write_set_compression_none(a);
|
|
|
|
if (archive_write_open_filename(a, o_arg) != ARCHIVE_OK)
|
|
errx(EX_CANTCREAT, "%s", archive_error_string(a));
|
|
|
|
return (a);
|
|
}
|
|
|
|
/* buffer for file data */
|
|
static char buffer[32768];
|
|
|
|
/*
|
|
* Write file data to an archive entry.
|
|
*/
|
|
static int
|
|
shar_write_entry_data(struct archive *a, const int fd)
|
|
{
|
|
ssize_t bytes_read, bytes_written;
|
|
|
|
assert(a != NULL);
|
|
assert(fd >= 0);
|
|
|
|
bytes_read = read(fd, buffer, sizeof(buffer));
|
|
while (bytes_read != 0) {
|
|
if (bytes_read < 0) {
|
|
archive_set_error(a, errno, "Read failed");
|
|
return (ARCHIVE_WARN);
|
|
}
|
|
bytes_written = archive_write_data(a, buffer, bytes_read);
|
|
if (bytes_written < 0)
|
|
return (ARCHIVE_WARN);
|
|
bytes_read = read(fd, buffer, sizeof(buffer));
|
|
}
|
|
|
|
return (ARCHIVE_OK);
|
|
}
|
|
|
|
/*
|
|
* Write a file to the archive. We have special handling for symbolic links.
|
|
*/
|
|
static int
|
|
shar_write_entry(struct archive *a, const char *pathname, const char *accpath,
|
|
const struct stat *st)
|
|
{
|
|
struct archive_entry *entry;
|
|
int fd = -1;
|
|
int ret = ARCHIVE_OK;
|
|
|
|
assert(a != NULL);
|
|
assert(pathname != NULL);
|
|
assert(accpath != NULL);
|
|
assert(st != NULL);
|
|
|
|
entry = archive_entry_new();
|
|
|
|
if (S_ISREG(st->st_mode) && st->st_size > 0) {
|
|
/* regular file */
|
|
if ((fd = open(accpath, O_RDONLY)) == -1) {
|
|
warn("%s", accpath);
|
|
ret = ARCHIVE_WARN;
|
|
goto out;
|
|
}
|
|
} else if (S_ISLNK(st->st_mode)) {
|
|
/* symbolic link */
|
|
char lnkbuff[PATH_MAX + 1];
|
|
int lnklen;
|
|
if ((lnklen = readlink(accpath, lnkbuff, PATH_MAX)) == -1) {
|
|
warn("%s", accpath);
|
|
ret = ARCHIVE_WARN;
|
|
goto out;
|
|
}
|
|
lnkbuff[lnklen] = '\0';
|
|
archive_entry_set_symlink(entry, lnkbuff);
|
|
}
|
|
archive_entry_copy_stat(entry, st);
|
|
archive_entry_set_pathname(entry, pathname);
|
|
if (!S_ISREG(st->st_mode) || st->st_size == 0)
|
|
archive_entry_set_size(entry, 0);
|
|
if (archive_write_header(a, entry) != ARCHIVE_OK) {
|
|
warnx("%s: %s", pathname, archive_error_string(a));
|
|
ret = ARCHIVE_WARN;
|
|
goto out;
|
|
}
|
|
if (fd >= 0) {
|
|
if ((ret = shar_write_entry_data(a, fd)) != ARCHIVE_OK)
|
|
warnx("%s: %s", accpath, archive_error_string(a));
|
|
}
|
|
out:
|
|
archive_entry_free(entry);
|
|
if (fd >= 0)
|
|
close(fd);
|
|
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* Write singe path to the archive. The path can be a regular file, directory
|
|
* or device. Symbolic links are followed.
|
|
*/
|
|
static int
|
|
shar_write_path(struct archive *a, const char *pathname)
|
|
{
|
|
struct stat st;
|
|
|
|
assert(a != NULL);
|
|
assert(pathname != NULL);
|
|
|
|
if ((stat(pathname, &st)) == -1) {
|
|
warn("%s", pathname);
|
|
return (ARCHIVE_WARN);
|
|
}
|
|
|
|
return (shar_write_entry(a, pathname, pathname, &st));
|
|
}
|
|
|
|
/*
|
|
* Write tree to the archive. If pathname is a symbolic link it will be
|
|
* followed. Other symbolic links are stored as such to the archive.
|
|
*/
|
|
static int
|
|
shar_write_tree(struct archive *a, const char *pathname)
|
|
{
|
|
struct tree *t;
|
|
const struct stat *lst, *st;
|
|
int error = 0;
|
|
int tree_ret;
|
|
int first;
|
|
|
|
assert(a != NULL);
|
|
assert(pathname != NULL);
|
|
|
|
t = tree_open(pathname);
|
|
for (first = 1; (tree_ret = tree_next(t)); first = 0) {
|
|
if (tree_ret == TREE_ERROR_DIR) {
|
|
warnx("%s: %s", tree_current_path(t),
|
|
strerror(tree_errno(t)));
|
|
error = 1;
|
|
continue;
|
|
} else if (tree_ret != TREE_REGULAR)
|
|
continue;
|
|
if ((lst = tree_current_lstat(t)) == NULL) {
|
|
warn("%s", tree_current_path(t));
|
|
error = 1;
|
|
continue;
|
|
}
|
|
/*
|
|
* If the symlink was given on command line then
|
|
* follow it rather than write it as symlink.
|
|
*/
|
|
if (first && S_ISLNK(lst->st_mode)) {
|
|
if ((st = tree_current_stat(t)) == NULL) {
|
|
warn("%s", tree_current_path(t));
|
|
error = 1;
|
|
continue;
|
|
}
|
|
} else
|
|
st = lst;
|
|
|
|
if (shar_write_entry(a, tree_current_path(t),
|
|
tree_current_access_path(t), st) != ARCHIVE_OK)
|
|
error = 1;
|
|
|
|
tree_descend(t);
|
|
}
|
|
|
|
tree_close(t);
|
|
|
|
return ((error != 0) ? ARCHIVE_WARN : ARCHIVE_OK);
|
|
}
|
|
|
|
/*
|
|
* Create a shar archive and write files/trees into it.
|
|
*/
|
|
static int
|
|
shar_write(char **fn, size_t nfn)
|
|
{
|
|
struct archive *a;
|
|
size_t i;
|
|
int error = 0;
|
|
|
|
assert(fn != NULL);
|
|
assert(nfn > 0);
|
|
|
|
a = shar_create();
|
|
|
|
for (i = 0; i < nfn; i++) {
|
|
if (r_opt) {
|
|
if (shar_write_tree(a, fn[i]) != ARCHIVE_OK)
|
|
error = 1;
|
|
} else {
|
|
if (shar_write_path(a, fn[i]) != ARCHIVE_OK)
|
|
error = 1;
|
|
}
|
|
}
|
|
|
|
if (archive_write_finish(a) != ARCHIVE_OK)
|
|
errx(EXIT_FAILURE, "%s", archive_error_string(a));
|
|
|
|
if (error != 0)
|
|
warnx("Error exit delayed from previous errors.");
|
|
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int opt;
|
|
|
|
while ((opt = getopt(argc, argv, "bro:")) != -1) {
|
|
switch (opt) {
|
|
case 'b':
|
|
b_opt = 1;
|
|
break;
|
|
case 'o':
|
|
o_arg = optarg;
|
|
break;
|
|
case 'r':
|
|
r_opt = 1;
|
|
break;
|
|
default:
|
|
usage();
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if(argc < 1)
|
|
usage();
|
|
|
|
if (shar_write(argv, argc) != 0)
|
|
exit(EXIT_FAILURE);
|
|
else
|
|
exit(EXIT_SUCCESS);
|
|
/* NOTREACHED */
|
|
}
|
|
|