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Fix dialplan function NULL channel safety issues
(closes issue ASTERISK-23391) Reported by: Corey Farrell Review: https://reviewboard.asterisk.org/r/3386/ ........ Merged revisions 411313 from http://svn.asterisk.org/svn/asterisk/branches/1.8 ........ Merged revisions 411314 from http://svn.asterisk.org/svn/asterisk/branches/11 ........ Merged revisions 411315 from http://svn.asterisk.org/svn/asterisk/branches/12 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@411328 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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@@ -871,6 +871,11 @@ static int msg_func_read(struct ast_channel *chan, const char *function,
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struct ast_datastore *ds;
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struct ast_msg *msg;
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if (!chan) {
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ast_log(LOG_WARNING, "No channel was provided to %s function.\n", function);
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return -1;
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}
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ast_channel_lock(chan);
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if (!(ds = ast_channel_datastore_find(chan, &msg_datastore, NULL))) {
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@@ -907,6 +912,11 @@ static int msg_func_write(struct ast_channel *chan, const char *function,
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struct ast_datastore *ds;
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struct ast_msg *msg;
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if (!chan) {
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ast_log(LOG_WARNING, "No channel was provided to %s function.\n", function);
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return -1;
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}
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ast_channel_lock(chan);
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if (!(ds = msg_datastore_find_or_create(chan))) {
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@@ -963,6 +973,11 @@ static int msg_data_func_read(struct ast_channel *chan, const char *function,
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struct ast_msg *msg;
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const char *val;
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if (!chan) {
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ast_log(LOG_WARNING, "No channel was provided to %s function.\n", function);
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return -1;
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}
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ast_channel_lock(chan);
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if (!(ds = ast_channel_datastore_find(chan, &msg_datastore, NULL))) {
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@@ -993,6 +1008,11 @@ static int msg_data_func_write(struct ast_channel *chan, const char *function,
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struct ast_datastore *ds;
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struct ast_msg *msg;
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if (!chan) {
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ast_log(LOG_WARNING, "No channel was provided to %s function.\n", function);
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return -1;
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}
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ast_channel_lock(chan);
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if (!(ds = msg_datastore_find_or_create(chan))) {
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