diff options
| author | Jim Meyering <meyering@redhat.com> | 2012-06-20 13:45:46 +0200 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2012-07-02 15:45:29 -0700 |
| commit | 295c0280d117cfca85f354d8098ea72c30ef2ced (patch) | |
| tree | fbf9c2e0a8fd37861eda9a3edc55c92e8dccf177 /libglusterfs/src/common-utils.c | |
| parent | c62eeda7718e4c15e19ade68455826ab32438f98 (diff) | |
valid_ipv4_address: don't access addr[-1] for 0-length input string
valid_ipv6_address: Likewise.
Change-Id: I6225873a5e323f81de5f25335aceeee571629e28
BUG: 789278
Signed-off-by: Jim Meyering <meyering@redhat.com>
Reviewed-on: http://review.gluster.com/3602
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'libglusterfs/src/common-utils.c')
| -rw-r--r-- | libglusterfs/src/common-utils.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c index 82a493669..671a3e549 100644 --- a/libglusterfs/src/common-utils.c +++ b/libglusterfs/src/common-utils.c @@ -1703,7 +1703,8 @@ valid_ipv4_address (char *address, int length, gf_boolean_t wildcard_acc) tmp = gf_strdup (address); /* To prevent cases where last character is '.' */ - if (!isdigit (tmp[length - 1]) && (tmp[length - 1] != '*')) { + if (length <= 0 || + (!isdigit (tmp[length - 1]) && (tmp[length - 1] != '*'))) { ret = 0; goto out; } @@ -1749,7 +1750,7 @@ valid_ipv6_address (char *address, int length, gf_boolean_t wildcard_acc) tmp = gf_strdup (address); /* Check for compressed form */ - if (tmp[length - 1] == ':') { + if (length <= 0 || tmp[length - 1] == ':') { ret = 0; goto out; } |