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-rw-r--r--lib/util/charset/util_unistr.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/util/charset/util_unistr.c b/lib/util/charset/util_unistr.c
index 045aa4a3e3..f8207261c5 100644
--- a/lib/util/charset/util_unistr.c
+++ b/lib/util/charset/util_unistr.c
@@ -430,6 +430,10 @@ _PUBLIC_ char *strlower_talloc(TALLOC_CTX *ctx, const char *src)
char *dest;
struct smb_iconv_convenience *iconv_convenience = get_iconv_convenience();
+ if(src == NULL) {
+ return NULL;
+ }
+
/* this takes advantage of the fact that upper/lower can't
change the length of a character by more than 1 byte */
dest = talloc_array(ctx, char, 2*(strlen(src))+1);