static void
test(int pristine)
{
struct archive* a = archive_read_new();
if (!pristine) {
archive_read_support_filter_all(a);
archive_read_support_format_all(a);
}
assertEqualInt(ARCHIVE_OK, archive_read_add_passphrase(a, "pass1"));
/* An empty passphrase cannot be accepted. */
assertEqualInt(ARCHIVE_FAILED, archive_read_add_passphrase(a, ""));
/* NULL passphrases cannot be accepted. */
assertEqualInt(ARCHIVE_FAILED, archive_read_add_passphrase(a, NULL));
archive_read_free(a);
}
static void
mode_list(struct cpio *cpio)
{
struct archive *a;
struct archive_entry *entry;
int r;
a = archive_read_new();
if (a == NULL)
lafe_errc(1, 0, "Couldn't allocate archive object");
archive_read_support_filter_all(a);
archive_read_support_format_all(a);
if (cpio->passphrase != NULL)
r = archive_read_add_passphrase(a, cpio->passphrase);
else
r = archive_read_set_passphrase_callback(a, cpio,
&passphrase_callback);
if (r != ARCHIVE_OK)
lafe_errc(1, 0, "%s", archive_error_string(a));
if (archive_read_open_filename(a, cpio->filename,
cpio->bytes_per_block))
lafe_errc(1, archive_errno(a),
"%s", archive_error_string(a));
for (;;) {
r = archive_read_next_header(a, &entry);
if (r == ARCHIVE_EOF)
break;
if (r != ARCHIVE_OK) {
lafe_errc(1, archive_errno(a),
"%s", archive_error_string(a));
}
if (archive_match_path_excluded(cpio->matching, entry))
continue;
if (cpio->verbose)
list_item_verbose(cpio, entry);
else
fprintf(stdout, "%s\n", archive_entry_pathname(entry));
}
r = archive_read_close(a);
if (r != ARCHIVE_OK)
lafe_errc(1, 0, "%s", archive_error_string(a));
if (!cpio->quiet) {
int64_t blocks = (archive_filter_bytes(a, 0) + 511)
/ 512;
fprintf(stderr, "%lu %s\n", (unsigned long)blocks,
blocks == 1 ? "block" : "blocks");
}
archive_read_free(a);
exit(0);
}
/*
* Copy from specified archive to current archive. Returns non-zero
* for write errors (which force us to terminate the entire archiving
* operation). If there are errors reading the input archive, we set
* bsdtar->return_value but return zero, so the overall archiving
* operation will complete and return non-zero.
*/
static int
append_archive_filename(struct bsdtar *bsdtar, struct archive *a,
const char *raw_filename)
{
struct archive *ina;
const char *filename = raw_filename;
int rc;
if (strcmp(filename, "-") == 0)
filename = NULL; /* Library uses NULL for stdio. */
ina = archive_read_new();
archive_read_support_format_all(ina);
archive_read_support_filter_all(ina);
set_reader_options(bsdtar, ina);
archive_read_set_options(ina, "mtree:checkfs");
if (bsdtar->passphrase != NULL)
rc = archive_read_add_passphrase(a, bsdtar->passphrase);
else
rc = archive_read_set_passphrase_callback(ina, bsdtar,
&passphrase_callback);
if (rc != ARCHIVE_OK)
lafe_errc(1, 0, "%s", archive_error_string(a));
if (archive_read_open_filename(ina, filename,
bsdtar->bytes_per_block)) {
lafe_warnc(0, "%s", archive_error_string(ina));
bsdtar->return_value = 1;
return (0);
}
rc = append_archive(bsdtar, a, ina);
if (rc != ARCHIVE_OK) {
lafe_warnc(0, "Error reading archive %s: %s",
raw_filename, archive_error_string(ina));
bsdtar->return_value = 1;
}
archive_read_free(ina);
return (rc);
}
static void
mode_in(struct cpio *cpio)
{
struct archive *a;
struct archive_entry *entry;
struct archive *ext;
const char *destpath;
int r;
ext = archive_write_disk_new();
if (ext == NULL)
lafe_errc(1, 0, "Couldn't allocate restore object");
r = archive_write_disk_set_options(ext, cpio->extract_flags);
if (r != ARCHIVE_OK)
lafe_errc(1, 0, "%s", archive_error_string(ext));
a = archive_read_new();
if (a == NULL)
lafe_errc(1, 0, "Couldn't allocate archive object");
archive_read_support_filter_all(a);
archive_read_support_format_all(a);
if (cpio->passphrase != NULL)
r = archive_read_add_passphrase(a, cpio->passphrase);
else
r = archive_read_set_passphrase_callback(a, cpio,
&passphrase_callback);
if (r != ARCHIVE_OK)
lafe_errc(1, 0, "%s", archive_error_string(a));
if (archive_read_open_filename(a, cpio->filename,
cpio->bytes_per_block))
lafe_errc(1, archive_errno(a),
"%s", archive_error_string(a));
for (;;) {
r = archive_read_next_header(a, &entry);
if (r == ARCHIVE_EOF)
break;
if (r != ARCHIVE_OK) {
lafe_errc(1, archive_errno(a),
"%s", archive_error_string(a));
}
if (archive_match_path_excluded(cpio->matching, entry))
continue;
if (cpio->option_rename) {
destpath = cpio_rename(archive_entry_pathname(entry));
archive_entry_set_pathname(entry, destpath);
} else
destpath = archive_entry_pathname(entry);
if (destpath == NULL)
continue;
if (cpio->verbose)
fprintf(stderr, "%s\n", destpath);
if (cpio->dot)
fprintf(stderr, ".");
if (cpio->uid_override >= 0)
archive_entry_set_uid(entry, cpio->uid_override);
if (cpio->gid_override >= 0)
archive_entry_set_gid(entry, cpio->gid_override);
r = archive_write_header(ext, entry);
if (r != ARCHIVE_OK) {
fprintf(stderr, "%s: %s\n",
archive_entry_pathname(entry),
archive_error_string(ext));
} else if (!archive_entry_size_is_set(entry)
|| archive_entry_size(entry) > 0) {
r = extract_data(a, ext);
if (r != ARCHIVE_OK)
cpio->return_value = 1;
}
}
r = archive_read_close(a);
if (cpio->dot)
fprintf(stderr, "\n");
if (r != ARCHIVE_OK)
lafe_errc(1, 0, "%s", archive_error_string(a));
r = archive_write_close(ext);
if (r != ARCHIVE_OK)
lafe_errc(1, 0, "%s", archive_error_string(ext));
if (!cpio->quiet) {
int64_t blocks = (archive_filter_bytes(a, 0) + 511)
/ 512;
fprintf(stderr, "%lu %s\n", (unsigned long)blocks,
blocks == 1 ? "block" : "blocks");
}
archive_read_free(a);
archive_write_free(ext);
exit(cpio->return_value);
}
/*
* Handle 'x' and 't' modes.
*/
static void
read_archive(struct bsdtar *bsdtar, char mode, struct archive *writer)
{
struct progress_data progress_data;
FILE *out;
struct archive *a;
struct archive_entry *entry;
const char *reader_options;
int r;
while (*bsdtar->argv) {
if (archive_match_include_pattern(bsdtar->matching,
*bsdtar->argv) != ARCHIVE_OK)
lafe_errc(1, 0, "Error inclusion pattern: %s",
archive_error_string(bsdtar->matching));
bsdtar->argv++;
}
if (bsdtar->names_from_file != NULL)
if (archive_match_include_pattern_from_file(
bsdtar->matching, bsdtar->names_from_file,
bsdtar->option_null) != ARCHIVE_OK)
lafe_errc(1, 0, "Error inclusion pattern: %s",
archive_error_string(bsdtar->matching));
a = archive_read_new();
if (cset_read_support_filter_program(bsdtar->cset, a) == 0)
archive_read_support_filter_all(a);
archive_read_support_format_all(a);
reader_options = getenv(ENV_READER_OPTIONS);
if (reader_options != NULL) {
char *p;
/* Set default read options. */
p = malloc(sizeof(IGNORE_WRONG_MODULE_NAME)
+ strlen(reader_options) + 1);
if (p == NULL)
lafe_errc(1, errno, "Out of memory");
/* Prepend magic code to ignore options for
* a format or modules which are not added to
* the archive read object. */
strncpy(p, IGNORE_WRONG_MODULE_NAME,
sizeof(IGNORE_WRONG_MODULE_NAME) -1);
strcpy(p + sizeof(IGNORE_WRONG_MODULE_NAME) -1, reader_options);
r = archive_read_set_options(a, p);
free(p);
if (r == ARCHIVE_FATAL)
lafe_errc(1, 0, "%s", archive_error_string(a));
else
archive_clear_error(a);
}
if (ARCHIVE_OK != archive_read_set_options(a, bsdtar->option_options))
lafe_errc(1, 0, "%s", archive_error_string(a));
if (bsdtar->option_ignore_zeros)
if (archive_read_set_options(a,
"read_concatenated_archives") != ARCHIVE_OK)
lafe_errc(1, 0, "%s", archive_error_string(a));
if (bsdtar->passphrase != NULL)
r = archive_read_add_passphrase(a, bsdtar->passphrase);
else
r = archive_read_set_passphrase_callback(a, bsdtar,
&passphrase_callback);
if (r != ARCHIVE_OK)
lafe_errc(1, 0, "%s", archive_error_string(a));
if (archive_read_open_filename(a, bsdtar->filename,
bsdtar->bytes_per_block))
lafe_errc(1, 0, "Error opening archive: %s",
archive_error_string(a));
do_chdir(bsdtar);
if (mode == 'x') {
/* Set an extract callback so that we can handle SIGINFO. */
progress_data.bsdtar = bsdtar;
progress_data.archive = a;
archive_read_extract_set_progress_callback(a, progress_func,
&progress_data);
}
if (mode == 'x' && bsdtar->option_chroot) {
#if HAVE_CHROOT
if (chroot(".") != 0)
lafe_errc(1, errno, "Can't chroot to \".\"");
#else
lafe_errc(1, 0,
"chroot isn't supported on this platform");
#endif
}
#if defined(_WIN32) && !defined(__CYGWIN__)
if (mode == 'x' && bsdtar->option_stdout) {
_setmode(1, _O_BINARY);
}
#endif
for (;;) {
/* Support --fast-read option */
if (bsdtar->option_fast_read &&
archive_match_path_unmatched_inclusions(bsdtar->matching) == 0)
break;
r = archive_read_next_header(a, &entry);
progress_data.entry = entry;
if (r == ARCHIVE_EOF)
break;
if (r < ARCHIVE_OK)
lafe_warnc(0, "%s", archive_error_string(a));
if (r <= ARCHIVE_WARN)
bsdtar->return_value = 1;
if (r == ARCHIVE_RETRY) {
/* Retryable error: try again */
lafe_warnc(0, "Retrying...");
continue;
}
if (r == ARCHIVE_FATAL)
break;
const char *p = archive_entry_pathname(entry);
if (p == NULL || p[0] == '\0') {
lafe_warnc(0, "Archive entry has empty or unreadable filename ... skipping.");
bsdtar->return_value = 1;
continue;
}
if (bsdtar->uid >= 0) {
archive_entry_set_uid(entry, bsdtar->uid);
archive_entry_set_uname(entry, NULL);
}
if (bsdtar->gid >= 0) {
archive_entry_set_gid(entry, bsdtar->gid);
archive_entry_set_gname(entry, NULL);
}
if (bsdtar->uname)
archive_entry_set_uname(entry, bsdtar->uname);
if (bsdtar->gname)
archive_entry_set_gname(entry, bsdtar->gname);
/*
* Note that pattern exclusions are checked before
* pathname rewrites are handled. This gives more
* control over exclusions, since rewrites always lose
* information. (For example, consider a rewrite
* s/foo[0-9]/foo/. If we check exclusions after the
* rewrite, there would be no way to exclude foo1/bar
* while allowing foo2/bar.)
*/
if (archive_match_excluded(bsdtar->matching, entry))
continue; /* Excluded by a pattern test. */
if (mode == 't') {
/* Perversely, gtar uses -O to mean "send to stderr"
* when used with -t. */
out = bsdtar->option_stdout ? stderr : stdout;
/*
* TODO: Provide some reasonable way to
* preview rewrites. gtar always displays
* the unedited path in -t output, which means
* you cannot easily preview rewrites.
*/
if (bsdtar->verbose < 2)
safe_fprintf(out, "%s",
archive_entry_pathname(entry));
else
list_item_verbose(bsdtar, out, entry);
fflush(out);
r = archive_read_data_skip(a);
if (r == ARCHIVE_WARN) {
fprintf(out, "\n");
lafe_warnc(0, "%s",
archive_error_string(a));
}
if (r == ARCHIVE_RETRY) {
fprintf(out, "\n");
lafe_warnc(0, "%s",
archive_error_string(a));
}
if (r == ARCHIVE_FATAL) {
fprintf(out, "\n");
lafe_warnc(0, "%s",
archive_error_string(a));
bsdtar->return_value = 1;
break;
}
fprintf(out, "\n");
} else {
/* Note: some rewrite failures prevent extraction. */
if (edit_pathname(bsdtar, entry))
continue; /* Excluded by a rewrite failure. */
if (bsdtar->option_interactive &&
!yes("extract '%s'", archive_entry_pathname(entry)))
continue;
if (bsdtar->verbose > 1) {
/* GNU tar uses -tv format with -xvv */
list_item_verbose(bsdtar, stderr, entry);
fflush(stderr);
} else if (bsdtar->verbose > 0) {
/* Format follows SUSv2, including the
* deferred '\n'. */
safe_fprintf(stderr, "x %s",
archive_entry_pathname(entry));
fflush(stderr);
}
/* TODO siginfo_printinfo(bsdtar, 0); */
if (bsdtar->option_stdout)
r = archive_read_data_into_fd(a, 1);
else
r = archive_read_extract2(a, entry, writer);
if (r != ARCHIVE_OK) {
if (!bsdtar->verbose)
safe_fprintf(stderr, "%s",
archive_entry_pathname(entry));
safe_fprintf(stderr, ": %s",
archive_error_string(a));
if (!bsdtar->verbose)
fprintf(stderr, "\n");
bsdtar->return_value = 1;
}
if (bsdtar->verbose)
fprintf(stderr, "\n");
if (r == ARCHIVE_FATAL)
break;
}
}
r = archive_read_close(a);
if (r != ARCHIVE_OK)
lafe_warnc(0, "%s", archive_error_string(a));
if (r <= ARCHIVE_WARN)
bsdtar->return_value = 1;
if (bsdtar->verbose > 2)
fprintf(stdout, "Archive Format: %s, Compression: %s\n",
archive_format_name(a), archive_filter_name(a, 0));
archive_read_free(a);
}
