From 0c9ef3221c32bb9c49d4c4bba8e55e59ce940bcb Mon Sep 17 00:00:00 2001 From: Russell Bryant Date: Mon, 23 Apr 2007 18:19:42 +0000 Subject: Merged revisions 61765 via svnmerge from https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r61765 | russell | 2007-04-23 13:17:00 -0500 (Mon, 23 Apr 2007) | 5 lines Some dialplan functions, such as CUT(), expect to operate on variables on a channel. So, this little hack lets them work in places where a channel doesn't exist, such as within DUNDi configuration. (issue #9465, reported and patched by Corydon76, testing by blitzrage) ........ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@61766 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- main/pbx.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'main') diff --git a/main/pbx.c b/main/pbx.c index e916411ff..0e4464a63 100644 --- a/main/pbx.c +++ b/main/pbx.c @@ -1564,7 +1564,21 @@ static void pbx_substitute_variables_helper_full(struct ast_channel *c, struct v parse_variable_name(vars, &offset, &offset2, &isfunction); if (isfunction) { /* Evaluate function */ - cp4 = ast_func_read(c, vars, workspace, VAR_BUF_SIZE) ? NULL : workspace; + if (c) + cp4 = ast_func_read(c, vars, workspace, VAR_BUF_SIZE) ? NULL : workspace; + else { + struct varshead old; + struct ast_channel *c = ast_channel_alloc(0, 0, "", "", "", "", "", 0, "Bogus/%p", vars); + if (c) { + memcpy(&old, &c->varshead, sizeof(old)); + memcpy(&c->varshead, headp, sizeof(c->varshead)); + cp4 = ast_func_read(c, vars, workspace, VAR_BUF_SIZE) ? NULL : workspace; + /* Don't deallocate the varshead that was passed in */ + memcpy(&c->varshead, &old, sizeof(c->varshead)); + ast_channel_free(c); + } else + ast_log(LOG_ERROR, "Unable to allocate bogus channel for variable substitution. Function results may be blank.\n"); + } if (option_debug) ast_log(LOG_DEBUG, "Function result is '%s'\n", cp4 ? cp4 : "(null)"); } else { -- cgit v1.2.3