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$NetBSD: patch-channels_sip_sdp__crypto.c,v 1.1 2015/10/27 08:49:01 jnemeth Exp $
--- channels/sip/sdp_crypto.c.orig 2015-10-09 22:23:39.000000000 +0000
+++ channels/sip/sdp_crypto.c
@@ -187,6 +187,7 @@ err:
int sdp_crypto_process(struct sdp_crypto *p, const char *attr, struct ast_rtp_instance *rtp, struct sip_srtp *srtp)
{
+ char buf[10];
char *str = NULL;
char *tag = NULL;
char *suite = NULL;
@@ -220,8 +221,10 @@ int sdp_crypto_process(struct sdp_crypto
return -1;
}
- /* RFC4568 9.1 - tag is 1-9 digits, greater than zero */
- if (sscanf(tag, "%30d", &p->tag) != 1 || p->tag <= 0 || p->tag > 999999999) {
+ /* RFC4568 9.1 - tag is 1-9 digits */
+ p->tag = atoi(tag);
+ snprintf(buf, sizeof(buf), "%d", p->tag);
+ if (strcmp(buf, tag) || p->tag < 0 || p->tag > 999999999) {
ast_log(LOG_WARNING, "Unacceptable a=crypto tag: %s\n", tag);
return -1;
}
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