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| author | Dave Reisner | 2012-06-03 18:25:47 +0200 |
|---|---|---|
| committer | Karel Zak | 2012-06-05 15:40:11 +0200 |
| commit | 5e7b834002aa0ce97a1b0104e8710664ad954595 (patch) | |
| tree | 67726a758be4128d126d7fb1c326e1e9ad3a1277 /libmount/src/optstr.c | |
| parent | build-sys: include correct source file for chsh (diff) | |
| download | kernel-qcow2-util-linux-5e7b834002aa0ce97a1b0104e8710664ad954595.tar.gz kernel-qcow2-util-linux-5e7b834002aa0ce97a1b0104e8710664ad954595.tar.xz kernel-qcow2-util-linux-5e7b834002aa0ce97a1b0104e8710664ad954595.zip | |
libmount: trim leading commas from each options string
Fixes a bug in option string parsing wherein a line such as:
ro,relatime,,nosuid,nodev
Will be seen as only the tokens "ro" and "relatime" after the parser
encounters a zero length (and erroneously declared NULL) option.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Diffstat (limited to 'libmount/src/optstr.c')
| -rw-r--r-- | libmount/src/optstr.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libmount/src/optstr.c b/libmount/src/optstr.c index af5953bc6..66d2a06c3 100644 --- a/libmount/src/optstr.c +++ b/libmount/src/optstr.c @@ -62,6 +62,11 @@ static int mnt_optstr_parse_next(char **optstr, char **name, size_t *namesz, if (valsz) *valsz = 0; + /* trim leading commas as to not invalidate option + * strings with multiple consecutive commas */ + while (optstr0 && *optstr0 == ',') + optstr0++; + for (p = optstr0; p && *p; p++) { if (!start) start = p; /* begin of the option item */ |