diff options
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/zvol_id/zvol_id_main.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/cmd/zvol_id/zvol_id_main.c b/cmd/zvol_id/zvol_id_main.c index 6bd5113f1..4a2d74cc2 100644 --- a/cmd/zvol_id/zvol_id_main.c +++ b/cmd/zvol_id/zvol_id_main.c @@ -55,11 +55,12 @@ main(int argc, char **argv) { int fd, error = 0; char zvol_name[ZFS_MAX_DATASET_NAME_LEN]; - char zvol_name_part[ZFS_MAX_DATASET_NAME_LEN]; + char *zvol_name_part = NULL; char *dev_name; struct stat64 statbuf; int dev_minor, dev_part; int i; + int rc; if (argc < 2) { printf("Usage: %s /dev/zvol_device_node\n", argv[0]); @@ -88,11 +89,13 @@ main(int argc, char **argv) return (errno); } if (dev_part > 0) - snprintf(zvol_name_part, ZFS_MAX_DATASET_NAME_LEN, - "%s-part%d", zvol_name, dev_part); + rc = asprintf(&zvol_name_part, "%s-part%d", zvol_name, + dev_part); else - snprintf(zvol_name_part, ZFS_MAX_DATASET_NAME_LEN, - "%s", zvol_name); + rc = asprintf(&zvol_name_part, "%s", zvol_name); + + if (rc == -1 || zvol_name_part == NULL) + goto error; for (i = 0; i < strlen(zvol_name_part); i++) { if (isblank(zvol_name_part[i])) @@ -100,6 +103,8 @@ main(int argc, char **argv) } printf("%s\n", zvol_name_part); + free(zvol_name_part); +error: close(fd); return (error); } |