diff options
Diffstat (limited to 'tune/tune.c')
| -rw-r--r-- | tune/tune.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/tune/tune.c b/tune/tune.c index f883556..4966e0a 100644 --- a/tune/tune.c +++ b/tune/tune.c @@ -49,6 +49,7 @@ int main(int argc, char *argv[]) { int c; int ret = EXIT_FAILURE; + unsigned long volume_serial; struct exfat_blk_dev bd; struct exfat_user_input ui; bool version_only = false; @@ -85,7 +86,17 @@ int main(int argc, char *argv[]) flags = EXFAT_GET_VOLUME_SERIAL; break; case 'I': - ui.volume_serial = strtoul(optarg, NULL, 0); + ret = exfat_parse_ulong(optarg, &volume_serial); + if (volume_serial > UINT_MAX) + ret = -ERANGE; + + + if (ret < 0) { + exfat_err("invalid serial number(%s)\n", optarg); + goto out; + } + + ui.volume_serial = volume_serial; flags = EXFAT_SET_VOLUME_SERIAL; break; case 'V': @@ -129,7 +140,6 @@ int main(int argc, char *argv[]) exfat = exfat_alloc_exfat(&bd, bs); if (!exfat) { - free(bs); ret = -ENOMEM; goto close_fd_out; } |