If the leading underscore is not stripped before comparison,

pbx_builtin_getvar_helper() will never find the associated variable.
(Bug 7892)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@42638 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 4aa88292e24c09b5dbb0b63ddc9feefc865755a4..2f7da5fd23b98263931dda93a69bae6ac2392f98 100644 (file)
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -16314,7 +16314,8 @@ static int sip_addheader(struct ast_channel *chan, void *data)
                no++;
                snprintf(varbuf, sizeof(varbuf), "_SIPADDHEADER%.2d", no);
 
-               if( (pbx_builtin_getvar_helper(chan, (const char *) varbuf) == (const char *) NULL) )
+               /* Compare without the leading underscore */
+               if( (pbx_builtin_getvar_helper(chan, (const char *) varbuf + 1) == (const char *) NULL) )
                        ok = TRUE;
        }
        if (ok) {