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don't strchr on NULL, second resolution to MODAPP-2 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4393 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris 2007-02-25 22:44:36 +00:00
parent 9c3d336223
commit bbbd010b94
1 changed files with 1 additions and 1 deletions
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2
src/switch_channel.c
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@ -1202,7 +1202,7 @@ SWITCH_DECLARE(char *) switch_channel_expand_variables(switch_channel_t *channel
size_t sp = 0, len = 0, olen = 0, vtype = 0, br = 0, cpos, block = 128;
char *sub_val = NULL, *func_val = NULL;
if (!strchr(in, '$')) {
if (!in || !strchr(in, '$')) {
return in;
}