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| author | Karel Zak | 2013-07-02 10:46:10 +0200 |
|---|---|---|
| committer | Karel Zak | 2013-07-02 10:46:10 +0200 |
| commit | 2c6b25f01802808b142d450af3352605720899da (patch) | |
| tree | 560ff39da7ebe2bd9d97549d175960f2ea33e9dc /libmount/src/utils.c | |
| parent | lib/canonical: use realpath() from libc (diff) | |
| download | kernel-qcow2-util-linux-2c6b25f01802808b142d450af3352605720899da.tar.gz kernel-qcow2-util-linux-2c6b25f01802808b142d450af3352605720899da.tar.xz kernel-qcow2-util-linux-2c6b25f01802808b142d450af3352605720899da.zip | |
libmount: be more restrictive about valid tag names
# mount DUMMY=filename.img /mnt
The 'DUMMY=filename.img' is a filename and should not be
interpreted as tag name. The valid tag names are LABEL, UUID,
PARTLABEL and PARTUUID only.
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'libmount/src/utils.c')
| -rw-r--r-- | libmount/src/utils.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libmount/src/utils.c b/libmount/src/utils.c index c328414f2..6c5171eca 100644 --- a/libmount/src/utils.c +++ b/libmount/src/utils.c @@ -65,6 +65,18 @@ int is_file_empty(const char *name) return (stat(name, &st) != 0 || st.st_size == 0); } +int mnt_valid_tagname(const char *tagname) +{ + if (tagname && *tagname && ( + strcmp("UUID", tagname) == 0 || + strcmp("LABEL", tagname) == 0 || + strcmp("PARTUUID", tagname) == 0 || + strcmp("PARTLABEL", tagname) == 0)) + return 1; + + return 0; +} + int mnt_parse_offset(const char *str, size_t len, uintmax_t *res) { char *p; |