diff options
| author | Jim Meyering <meyering@redhat.com> | 2012-06-20 10:07:12 +0200 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2012-07-02 15:37:26 -0700 |
| commit | 2310671cd15cd1639436a824922fa0a924cd6367 (patch) | |
| tree | 8e32b0606370f0f53908469b2b306e26856ccd9f /xlators/mgmt/glusterd/src/glusterd-geo-rep.c | |
| parent | 13e7f9dc6971be887fc73a460517fa84e11b927c (diff) | |
geo-rep: handle input without trailing newline; don't reference buf[-1]
Do not truncate final byte of a line that does not end in a newline.
Do not clobber stack (resbuf[-1]) for input that starts with a NUL byte.
Likewise in glusterd_urltransform.
Change-Id: Ifdcad02d908c8dcbc1a0eee78d318dd4e7860322
BUG: 789278
Signed-off-by: Jim Meyering <meyering@redhat.com>
Reviewed-on: http://review.gluster.com/3595
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-geo-rep.c')
| -rw-r--r-- | xlators/mgmt/glusterd/src/glusterd-geo-rep.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-geo-rep.c b/xlators/mgmt/glusterd/src/glusterd-geo-rep.c index c66b2db5..62122dbc 100644 --- a/xlators/mgmt/glusterd/src/glusterd-geo-rep.c +++ b/xlators/mgmt/glusterd/src/glusterd-geo-rep.c @@ -229,6 +229,7 @@ glusterd_urltransform (runner_t *runner, char ***linearrp) arr_idx = 0; for (;;) { + size_t len; line = GF_MALLOC (1024, gf_gld_mt_linebuf); if (!line) { error = _gf_true; @@ -239,12 +240,13 @@ glusterd_urltransform (runner_t *runner, char ***linearrp) NULL) break; - if (line[strlen (line) - 1] != '\n') { + len = strlen (line); + if (len == 0 || line[len - 1] != '\n') { GF_FREE (line); error = _gf_true; goto out; } - line[strlen (line) - 1] = '\0'; + line[len - 1] = '\0'; if (arr_idx == arr_len) { arr_len <<= 1; @@ -383,8 +385,11 @@ _fcbk_singleline(char *resbuf, size_t blen, FILE *fp, void *data) errno = 0; ptr = fgets (resbuf, blen, fp); - if (ptr) - resbuf[strlen(resbuf)-1] = '\0'; //strip off \n + if (ptr) { + size_t len = strlen(resbuf); + if (len && resbuf[len-1] == '\n') + resbuf[len-1] = '\0'; //strip off \n + } return errno ? -1 : 0; } |