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Diffstat (limited to 'Utilities/cmcurl/lib/pop3.c')
-rw-r--r--Utilities/cmcurl/lib/pop3.c37
1 files changed, 22 insertions, 15 deletions
diff --git a/Utilities/cmcurl/lib/pop3.c b/Utilities/cmcurl/lib/pop3.c
index 5792a4a6f..78f6afef1 100644
--- a/Utilities/cmcurl/lib/pop3.c
+++ b/Utilities/cmcurl/lib/pop3.c
@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@@ -243,23 +243,30 @@ static bool pop3_endofresp(struct connectdata *conn, char *line, size_t len,
*/
static void pop3_get_message(char *buffer, char **outptr)
{
- size_t len = 0;
+ size_t len = strlen(buffer);
char *message = NULL;
- /* Find the start of the message */
- for(message = buffer + 2; *message == ' ' || *message == '\t'; message++)
- ;
-
- /* Find the end of the message */
- for(len = strlen(message); len--;)
- if(message[len] != '\r' && message[len] != '\n' && message[len] != ' ' &&
- message[len] != '\t')
- break;
-
- /* Terminate the message */
- if(++len) {
- message[len] = '\0';
+ if(len > 2) {
+ /* Find the start of the message */
+ len -= 2;
+ for(message = buffer + 2; *message == ' ' || *message == '\t';
+ message++, len--)
+ ;
+
+ /* Find the end of the message */
+ for(; len--;)
+ if(message[len] != '\r' && message[len] != '\n' && message[len] != ' ' &&
+ message[len] != '\t')
+ break;
+
+ /* Terminate the message */
+ if(++len) {
+ message[len] = '\0';
+ }
}
+ else
+ /* junk input => zero length output */
+ message = &buffer[len];
*outptr = message;
}