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| author | Karel Zak | 2012-10-23 12:40:39 +0200 |
|---|---|---|
| committer | Karel Zak | 2012-10-23 12:40:39 +0200 |
| commit | 9f51089e7f14f9b6f432a20ca59c0db5e5f16325 (patch) | |
| tree | 85b04f0899cc474ba7ec3a97dcf620ce3f22ee63 /misc-utils/lsblk.c | |
| parent | lsblk: use new sysfs functions, clean up get_transport() (diff) | |
| download | kernel-qcow2-util-linux-9f51089e7f14f9b6f432a20ca59c0db5e5f16325.tar.gz kernel-qcow2-util-linux-9f51089e7f14f9b6f432a20ca59c0db5e5f16325.tar.xz kernel-qcow2-util-linux-9f51089e7f14f9b6f432a20ca59c0db5e5f16325.zip | |
misc: make readlink() usage more robust
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'misc-utils/lsblk.c')
| -rw-r--r-- | misc-utils/lsblk.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/misc-utils/lsblk.c b/misc-utils/lsblk.c index ae203cab2..c57e78f1f 100644 --- a/misc-utils/lsblk.c +++ b/misc-utils/lsblk.c @@ -1045,7 +1045,7 @@ static int get_wholedisk_from_partition_dirent(DIR *dir, const char *dirname, int len; if ((len = readlink_at(dirfd(dir), dirname, - d->d_name, path, sizeof(path))) < 0) + d->d_name, path, sizeof(path) - 1)) < 0) return 0; path[len] = '\0'; @@ -1158,7 +1158,7 @@ static char *devno_to_sysfs_name(dev_t devno, char *devname, char *buf, size_t b return NULL; } - len = readlink(path, buf, buf_size); + len = readlink(path, buf, buf_size - 1); if (len < 0) { warn(_("%s: failed to read link"), path); return NULL; |