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authortilghman <tilghman@f38db490-d61c-443f-a65b-d21fe96a405b>2009-04-09 16:38:37 +0000
committertilghman <tilghman@f38db490-d61c-443f-a65b-d21fe96a405b>2009-04-09 16:38:37 +0000
commit07d8da88112b3b31ee52b6a1b383435c577227f9 (patch)
tree19dda650cef74dfb1a92ddc402675d821035d4bf
parent3e658ba1694dfecea45182861877b0ed91a735f6 (diff)
Permit zero-length text messages in SIP.
(Related to an issue posted to the -users list, subject "AEL2, BASE64_DECODE and hexadecimal") git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@187362 f38db490-d61c-443f-a65b-d21fe96a405b
-rw-r--r--apps/app_sendtext.c4
-rw-r--r--channels/chan_sip.c4
2 files changed, 6 insertions, 2 deletions
diff --git a/apps/app_sendtext.c b/apps/app_sendtext.c
index af4fcade5..e64bf03ee 100644
--- a/apps/app_sendtext.c
+++ b/apps/app_sendtext.c
@@ -78,7 +78,9 @@ static int sendtext_exec(struct ast_channel *chan, void *data)
u = ast_module_user_add(chan);
- if (ast_strlen_zero(data)) {
+ /* NOT ast_strlen_zero, because some protocols (e.g. SIP) MUST be able to
+ * send a zero-length message. */
+ if (!data) {
ast_log(LOG_WARNING, "SendText requires an argument (text[|options])\n");
ast_module_user_remove(u);
return -1;
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index ebdb2d3a0..599007747 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -2413,7 +2413,9 @@ static int sip_sendtext(struct ast_channel *ast, const char *text)
ast_verbose("Sending text %s on %s\n", text, ast->name);
if (!p)
return -1;
- if (ast_strlen_zero(text))
+ /* NOT ast_strlen_zero, because a zero-length message is specifically
+ * allowed by RFC 3428 (See section 10, Examples) */
+ if (!text)
return 0;
if (debug)
ast_verbose("Really sending text %s on %s\n", text, ast->name);