If the leading underscore is not stripped before comparison,
[asterisk/asterisk.git] / channels / chan_sip.c
index 4aa8829..2f7da5f 100644 (file)
@@ -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) {