[Asterisk-code-review] chan sip.c: Space after port causes unnecessary resolution a... (asterisk[11])

[Joshua Colp]

Joshua Colp has uploaded a new change for review.

  https://gerrit.asterisk.org/2448

Change subject: chan_sip.c: Space after port causes unnecessary resolution attempt
......................................................................

chan_sip.c: Space after port causes unnecessary resolution attempt

check_via() already skips leading blanks where the sent-by address (with the
optional port) should be placed.

Since RFC 3261 allows for blanks between the port ant the Via parameters:
> https://tools.ietf.org/html/rfc3261#section-20.42
(actually it allows a lot of blanks more ;-)). I just switched from
ast_skip_blanks() to ast_strip() on the local copy of the string.

ASTERISK-21301 #close

Change-Id: Ie5b8fe5a07067b7c0dc9bcdd1707e99b23b02b06
---
M channels/chan_sip.c
1 file changed, 1 insertion(+), 1 deletion(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/48/2448/1

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 3eb750a..5173fc2 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -18189,7 +18189,7 @@
 	c = strchr(via, ' ');
 	if (c) {
 		*c = '\0';
-		c = ast_skip_blanks(c+1);
+		c = ast_strip(c+1);
 		if (strcasecmp(via, "SIP/2.0/UDP") && strcasecmp(via, "SIP/2.0/TCP") && strcasecmp(via, "SIP/2.0/TLS")) {
 			ast_log(LOG_WARNING, "Don't know how to respond via '%s'\n", via);
 			return;

-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ie5b8fe5a07067b7c0dc9bcdd1707e99b23b02b06
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: 11
Gerrit-Owner: Joshua Colp <jcolp at digium.com>
Gerrit-Reviewer: Francesco Castellano <francesco.castellano at messagenet.it>