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Fix segfault when reloading chan_misdn.

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If more ports were specified than configured in misdn.conf a reload would crash
asterisk. The problem was the unconfigured port was using data from the
previously configured port. When the data for an unconfigured port was freed a
crash would result from the double free.

(closes issue #12113)
Reported by: agupta
Patches:
      bug12113.patch uploaded by jpeeler (license 325)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@212498 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Jeff Peeler
2009-08-17 16:34:56 +00:00
parent 00de2431be
commit d924b5349e
1 changed files with 5 additions and 0 deletions
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5
channels/misdn_config.c
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@@ -1001,6 +1001,11 @@ static void _build_port_config (struct ast_variable *v, char *cat)
} }
for (i = 0; i < (max_ports + 1); ++i) { for (i = 0; i < (max_ports + 1); ++i) {
if (i > 0 && cfg_for_ports[0]) {
/* default category, will populate the port_cfg with additional port
categories in subsequent calls to this function */
memset(cfg_tmp, 0, sizeof(cfg_tmp));
}
if (cfg_for_ports[i]) { if (cfg_for_ports[i]) {
memcpy(port_cfg[i], cfg_tmp, sizeof(cfg_tmp)); memcpy(port_cfg[i], cfg_tmp, sizeof(cfg_tmp));
} }