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-rw-r--r--source4/lib/charset/util_unistr.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/source4/lib/charset/util_unistr.c b/source4/lib/charset/util_unistr.c
index a8ff88423a..5f3b2c53f1 100644
--- a/source4/lib/charset/util_unistr.c
+++ b/source4/lib/charset/util_unistr.c
@@ -386,6 +386,9 @@ _PUBLIC_ size_t strlen_m_term(const char *s)
**/
_PUBLIC_ char *strchr_m(const char *s, char c)
{
+ if (s == NULL) {
+ return NULL;
+ }
/* characters below 0x3F are guaranteed to not appear in
non-initial position in multi-byte charsets */
if ((c & 0xC0) == 0) {
@@ -411,6 +414,10 @@ _PUBLIC_ char *strrchr_m(const char *s, char c)
{
char *ret = NULL;
+ if (s == NULL) {
+ return NULL;
+ }
+
/* characters below 0x3F are guaranteed to not appear in
non-initial position in multi-byte charsets */
if ((c & 0xC0) == 0) {