summaryrefslogtreecommitdiff
path: root/btrfs-image.c
diff options
context:
space:
mode:
Diffstat (limited to 'btrfs-image.c')
-rw-r--r--btrfs-image.c36
1 files changed, 21 insertions, 15 deletions
diff --git a/btrfs-image.c b/btrfs-image.c
index af5437b4..953d368d 100644
--- a/btrfs-image.c
+++ b/btrfs-image.c
@@ -2716,17 +2716,17 @@ out:
static void print_usage(int ret)
{
- fprintf(stderr, "usage: btrfs-image [options] source target\n");
- fprintf(stderr, "\t-r \trestore metadump image\n");
- fprintf(stderr, "\t-c value\tcompression level (0 ~ 9)\n");
- fprintf(stderr, "\t-t value\tnumber of threads (1 ~ 32)\n");
- fprintf(stderr, "\t-o \tdon't mess with the chunk tree when restoring\n");
- fprintf(stderr, "\t-s \tsanitize file names, use once to just use garbage, use twice if you want crc collisions\n");
- fprintf(stderr, "\t-w \twalk all trees instead of using extent tree, do this if your extent tree is broken\n");
- fprintf(stderr, "\t-m \trestore for multiple devices\n");
- fprintf(stderr, "\n");
- fprintf(stderr, "\tIn the dump mode, source is the btrfs device and target is the output file (use '-' for stdout).\n");
- fprintf(stderr, "\tIn the restore mode, source is the dumped image and target is the btrfs device/file.\n");
+ printf("usage: btrfs-image [options] source target\n");
+ printf("\t-r \trestore metadump image\n");
+ printf("\t-c value\tcompression level (0 ~ 9)\n");
+ printf("\t-t value\tnumber of threads (1 ~ 32)\n");
+ printf("\t-o \tdon't mess with the chunk tree when restoring\n");
+ printf("\t-s \tsanitize file names, use once to just use garbage, use twice if you want crc collisions\n");
+ printf("\t-w \twalk all trees instead of using extent tree, do this if your extent tree is broken\n");
+ printf("\t-m \trestore for multiple devices\n");
+ printf("\n");
+ printf("\tIn the dump mode, source is the btrfs device and target is the output file (use '-' for stdout).\n");
+ printf("\tIn the restore mode, source is the dumped image and target is the btrfs device/file.\n");
exit(ret);
}
@@ -2760,13 +2760,19 @@ int main(int argc, char *argv[])
break;
case 't':
num_threads = arg_strtou64(optarg);
- if (num_threads > 32)
- print_usage(1);
+ if (num_threads > 32) {
+ error("number of threads out of range: %llu",
+ (unsigned long long)num_threads);
+ return 1;
+ }
break;
case 'c':
compress_level = arg_strtou64(optarg);
- if (compress_level > 9)
- print_usage(1);
+ if (compress_level > 9) {
+ error("compression level out of range: %llu",
+ (unsigned long long)compress_level);
+ return 1;
+ }
break;
case 'o':
old_restore = 1;