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authorDenis Vlasenko2006-10-01 15:55:11 +0000
committerDenis Vlasenko2006-10-01 15:55:11 +0000
commit97a8dd3857aea9730382e2975a2ee2000fd23ebb (patch)
tree608f73898f3ed5f466dff68189625fa9328a15be /archival/gunzip.c
parentf8aa109a9f7c67b291f240fb3ed91da90f26359b (diff)
downloadbusybox-97a8dd3857aea9730382e2975a2ee2000fd23ebb.zip
busybox-97a8dd3857aea9730382e2975a2ee2000fd23ebb.tar.gz
g[un]zip: add support for -v (verbose).
Add CONFIG_DESKTOP, almost all bloat from this change is hidden under that.
Diffstat (limited to 'archival/gunzip.c')
-rw-r--r--archival/gunzip.c56
1 files changed, 33 insertions, 23 deletions
diff --git a/archival/gunzip.c b/archival/gunzip.c
index 9a68e62..1b49686 100644
--- a/archival/gunzip.c
+++ b/archival/gunzip.c
@@ -34,13 +34,15 @@
#define GUNZIP_OPT_FORCE 2
#define GUNZIP_OPT_TEST 4
#define GUNZIP_OPT_DECOMPRESS 8
+#define GUNZIP_OPT_VERBOSE 0x10
int gunzip_main(int argc, char **argv)
{
- char status = EXIT_SUCCESS;
+ USE_DESKTOP(long long) int status;
+ int exitcode = 0;
unsigned long opt;
- opt = bb_getopt_ulflags(argc, argv, "cftd");
+ opt = bb_getopt_ulflags(argc, argv, "cftdv");
/* if called as zcat */
if (strcmp(bb_applet_name, "zcat") == 0) {
opt |= GUNZIP_OPT_STDOUT;
@@ -59,6 +61,8 @@ int gunzip_main(int argc, char **argv)
if (old_path == NULL || strcmp(old_path, "-") == 0) {
src_fd = STDIN_FILENO;
opt |= GUNZIP_OPT_STDOUT;
+ USE_DESKTOP(opt &= ~GUNZIP_OPT_VERBOSE;)
+ optind = argc; /* we don't handle "gunzip - a.gz b.gz" */
} else {
src_fd = xopen(old_path, O_RDONLY);
@@ -67,9 +71,9 @@ int gunzip_main(int argc, char **argv)
}
/* Check that the input is sane. */
- if (isatty(src_fd) && ((opt & GUNZIP_OPT_FORCE) == 0)) {
+ if (isatty(src_fd) && !(opt & GUNZIP_OPT_FORCE)) {
bb_error_msg_and_die
- ("compressed data not read from terminal. Use -f to force it.");
+ ("compressed data not read from terminal, use -f to force it");
}
/* Set output filename and number */
@@ -94,7 +98,8 @@ int gunzip_main(int argc, char **argv)
extension[2] = 'a';
extension[3] = 'r';
} else {
- bb_error_msg_and_die("Invalid extension");
+ // FIXME: should we die or just skip to next?
+ bb_error_msg_and_die("invalid extension");
}
/* Open output file (with correct permissions) */
@@ -105,30 +110,34 @@ int gunzip_main(int argc, char **argv)
delete_path = old_path;
}
+ status = -1;
/* do the decompression, and cleanup */
if (xread_char(src_fd) == 0x1f) {
unsigned char magic2;
magic2 = xread_char(src_fd);
-#ifdef CONFIG_FEATURE_GUNZIP_UNCOMPRESS
- if (magic2 == 0x9d) {
+ if (ENABLE_FEATURE_GUNZIP_UNCOMPRESS && magic2 == 0x9d) {
status = uncompress(src_fd, dst_fd);
- } else
-#endif
- if (magic2 == 0x8b) {
- check_header_gzip(src_fd);
- status = inflate_gunzip(src_fd, dst_fd);
- if (status != 0) {
- bb_error_msg_and_die("error inflating");
- }
- } else {
- bb_error_msg_and_die("invalid magic");
- }
+ } else if (magic2 == 0x8b) {
+ check_header_gzip(src_fd); // FIXME: xfunc? _or_die?
+ status = inflate_gunzip(src_fd, dst_fd);
+ } else {
+ bb_error_msg("invalid magic");
+ exitcode = 1;
+ }
+ if (status < 0) {
+ bb_error_msg("error inflating");
+ exitcode = 1;
+ }
+ else if (ENABLE_DESKTOP && (opt & GUNZIP_OPT_VERBOSE)) {
+ fprintf(stderr, "%s: %u%% - replaced with %s\n",
+ // TODO: LARGEFILE support for stat_buf.st_size?
+ old_path, (unsigned)(stat_buf.st_size*100 / (status+1)), new_path);
+ }
} else {
- bb_error_msg_and_die("invalid magic");
+ bb_error_msg("invalid magic"); exitcode = 1;
}
-
- if ((status != EXIT_SUCCESS) && (new_path)) {
+ if (status < 0 && new_path) {
/* Unzip failed, remove new path instead of old path */
delete_path = new_path;
}
@@ -142,12 +151,13 @@ int gunzip_main(int argc, char **argv)
/* delete_path will be NULL if in test mode or from stdin */
if (delete_path && (unlink(delete_path) == -1)) {
- bb_error_msg_and_die("cannot remove %s", delete_path);
+ bb_error_msg("cannot remove %s", delete_path);
+ exitcode = 1;
}
free(new_path);
} while (optind < argc);
- return status;
+ return exitcode;
}