diff options
Diffstat (limited to 'unpack/unsquashfs.c')
| -rw-r--r-- | unpack/unsquashfs.c | 48 |
1 files changed, 43 insertions, 5 deletions
diff --git a/unpack/unsquashfs.c b/unpack/unsquashfs.c index 178def4..8ec1b94 100644 --- a/unpack/unsquashfs.c +++ b/unpack/unsquashfs.c @@ -12,11 +12,18 @@ static struct option long_opts[] = { { "list", required_argument, NULL, 'l' }, { "cat", required_argument, NULL, 'c' }, { "unpack-root", required_argument, NULL, 'u' }, + { "no-dev", no_argument, NULL, 'D' }, + { "no-sock", no_argument, NULL, 'S' }, + { "no-fifo", no_argument, NULL, 'F' }, + { "no-slink", no_argument, NULL, 'L' }, + { "no-empty-dir", no_argument, NULL, 'E' }, + { "chmod", no_argument, NULL, 'C' }, + { "chown", no_argument, NULL, 'O' }, { "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, 'V' }, }; -static const char *short_opts = "l:c:u:hV"; +static const char *short_opts = "l:c:u:DSFLCOEhV"; static const char *help_string = "Usage: %s [OPTIONS] <squashfs-file>\n" @@ -29,7 +36,17 @@ static const char *help_string = " --cat, -c <path> If the specified path is a regular file in the,\n" " image, dump its contents to stdout.\n" " --unpack-root <path> Unpack the contents of the filesystem into the\n" -" specified path\n" +" specified path.\n" +" --no-dev, -D Do not unpack device special files.\n" +" --no-sock, -S Do not unpack socket files.\n" +" --no-fifo, -F Do not unpack named pipes.\n" +" --no-slink, -L Do not unpack symbolic links.\n" +" --no-empty-dir, -E Do not unpack directories that would end up empty.\n" +" --chmod, -C Change permission flags of unpacked files to those\n" +" store in the squashfs image.\n" +" --chown, -O Change ownership of unpacked files to the UID/GID\n" +" set in the squashfs iamge.\n" +"\n" " --help, -h Print help text and exit.\n" " --version, -V Print version information and exit.\n" "\n"; @@ -92,7 +109,7 @@ static char *get_path(char *old, const char *arg) int main(int argc, char **argv) { - int i, fd, status = EXIT_FAILURE, op = OP_NONE; + int i, fd, status = EXIT_FAILURE, op = OP_NONE, unpack_flags = 0; const char *unpack_root = NULL; frag_reader_t *frag = NULL; char *cmdpath = NULL; @@ -107,6 +124,27 @@ int main(int argc, char **argv) break; switch (i) { + case 'D': + unpack_flags |= UNPACK_NO_DEVICES; + break; + case 'S': + unpack_flags |= UNPACK_NO_SOCKETS; + break; + case 'F': + unpack_flags |= UNPACK_NO_FIFO; + break; + case 'L': + unpack_flags |= UNPACK_NO_SLINKS; + break; + case 'C': + unpack_flags |= UNPACK_CHMOD; + break; + case 'O': + unpack_flags |= UNPACK_CHOWN; + break; + case 'E': + unpack_flags |= UNPACK_NO_EMPTY; + break; case 'c': op = OP_CAT; cmdpath = get_path(cmdpath, optarg); @@ -178,7 +216,7 @@ int main(int argc, char **argv) if (cmp == NULL) goto out_fd; - if (read_fstree(&fs, fd, &super, cmp)) + if (read_fstree(&fs, fd, &super, cmp, unpack_flags)) goto out_cmp; switch (op) { @@ -226,7 +264,7 @@ int main(int argc, char **argv) } if (restore_fstree(unpack_root, fs.root, cmp, super.block_size, - frag, fd)) { + frag, fd, unpack_flags)) { goto out_fs; } break; |