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-rw-r--r--lib/smtp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/smtp.c b/lib/smtp.c
index dd26f7b8e..936320377 100644
--- a/lib/smtp.c
+++ b/lib/smtp.c
@@ -1929,7 +1929,7 @@ static CURLcode smtp_parse_url_options(struct connectdata *conn)
const char *ptr = options;
bool reset = TRUE;
- while(*ptr) {
+ while(ptr && *ptr) {
const char *key = ptr;
while(*ptr && *ptr != '=')