sendmail: fix segfault if "To: email1,email2" is used

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/mailutils/sendmail.c b/mailutils/sendmail.c
index f440e6319..defbd9552 100644
--- a/mailutils/sendmail.c
+++ b/mailutils/sendmail.c
@@ -189,8 +189,9 @@ static void rcptto(const char *s)
 // send to a list of comma separated addresses
 static void rcptto_list(const char *list)
 {
-        char *str = xstrdup(list);
-        char *s = str;
+        char *free_me = xstrdup(list);
+        char *str = free_me;
+        char *s = free_me;
         char prev = 0;
         int in_quote = 0;
 
@@ -208,7 +209,7 @@ static void rcptto_list(const char *list)
         }
         if (prev != ',')
                 rcptto(angle_address(str));
-        free(str);
+        free(free_me);
 }
 
 int sendmail_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;