[Asterisk-code-review] srtp: Allow zero as tag value for a sRTP Crypto Suite. (asterisk[master])

[Alexander Traud]

Alexander Traud has uploaded a new change for review. ( https://gerrit.asterisk.org/5354 )

Change subject: srtp: Allow zero as tag value for a sRTP Crypto Suite.
......................................................................

srtp: Allow zero as tag value for a sRTP Crypto Suite.

ASTERISK-25490 #close

Change-Id: I1c5fc0942c33c96d62b24203aad0f1e1a1a0131f
---
M res/res_srtp.c
1 file changed, 2 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/54/5354/1

diff --git a/res/res_srtp.c b/res/res_srtp.c
index a611e61..c47a8d5 100644
--- a/res/res_srtp.c
+++ b/res/res_srtp.c
@@ -782,8 +782,8 @@
 		return -1;
 	}
 
-	/* RFC4568 9.1 - tag is 1-9 digits, greater than zero */
-	if (sscanf(tag, "%30d", &tag_from_sdp) != 1 || tag_from_sdp <= 0 || tag_from_sdp > 999999999) {
+	/* RFC4568 9.1 - tag is 1-9 digits */
+	if (sscanf(tag, "%30d", &tag_from_sdp) != 1 || tag_from_sdp < 0 || tag_from_sdp > 999999999) {
 		ast_log(LOG_WARNING, "Unacceptable a=crypto tag: %s\n", tag);
 		return -1;
 	}

-- 
To view, visit https://gerrit.asterisk.org/5354
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I1c5fc0942c33c96d62b24203aad0f1e1a1a0131f
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Owner: Alexander Traud <pabstraud at compuserve.com>