diff options
| author | Pali Rohár <pali.rohar@gmail.com> | 2014-10-19 20:18:02 +0200 |
|---|---|---|
| committer | Pali Rohár <pali.rohar@gmail.com> | 2014-10-19 20:18:02 +0200 |
| commit | a8986bf631aff030483c695bfb1eed1584e73677 (patch) | |
| tree | 463b1baf80121fbddcfec6b3381c61172b520189 /src/local.c | |
| parent | 9a1f63c5aed6e197033747e64d85e471aea3402f (diff) | |
| download | 0xFFFF-a8986bf631aff030483c695bfb1eed1584e73677.tar.bz2 | |
local: Check return value of snprintf
Diffstat (limited to 'src/local.c')
| -rw-r--r-- | src/local.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/local.c b/src/local.c index 4d28833..86d3b78 100644 --- a/src/local.c +++ b/src/local.c @@ -316,7 +316,8 @@ int local_dump_image(enum image_type image, const char * file) { while ( ( dirent = readdir(dir) ) ) { - snprintf(buf, sizeof(buf), "/sys/class/mmc_host/%s/slot_name", dirent->d_name); + if ( snprintf(buf, sizeof(buf), "/sys/class/mmc_host/%s/slot_name", dirent->d_name) <= 0 ) + continue; fd = open(buf, O_RDONLY); if ( fd < 0 ) @@ -330,7 +331,8 @@ int local_dump_image(enum image_type image, const char * file) { if ( strncmp(buf, "internal", strlen("internal")) != 0 ) continue; - snprintf(buf, sizeof(buf), "/sys/class/mmc_host/%s/%s:0001/", dirent->d_name, dirent->d_name); + if ( snprintf(buf, sizeof(buf), "/sys/class/mmc_host/%s/%s:0001/", dirent->d_name, dirent->d_name) <= 0 ) + continue; dir2 = opendir(buf); if ( ! dir2 ) @@ -341,7 +343,8 @@ int local_dump_image(enum image_type image, const char * file) { if ( strncmp(dirent2->d_name, "block:mmcblk", strlen("block:mmcblk")) != 0 ) continue; - snprintf(buf, sizeof(buf), "/sys/class/mmc_host/%s/%s:0001/%s/dev", dirent->d_name, dirent->d_name, dirent2->d_name); + if ( snprintf(buf, sizeof(buf), "/sys/class/mmc_host/%s/%s:0001/%s/dev", dirent->d_name, dirent->d_name, dirent2->d_name) <= 0 ) + continue; f = fopen(buf, "r"); if ( ! f ) @@ -385,7 +388,8 @@ int local_dump_image(enum image_type image, const char * file) { while ( ( dirent = readdir(dir) ) ) { - snprintf(buf, sizeof(buf), "/dev/%s", dirent->d_name); + if ( snprintf(buf, sizeof(buf), "/dev/%s", dirent->d_name) <= 0 ) + continue; if ( stat(buf, &st) != 0 ) continue; |