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config: bug: Fix SEGV in ast_category_insert when matching category isn't found

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If you call ast_category_insert with a match category that doesn't exist, the
list traverse runs out of 'next' categories and you get a SEGV.  This patch
adds check for the end-of-list condition and changes the signature to return
an int for success/failure indication instead of a void.

The only consumer of this function is manager and it was also changed to use
the return value.

Tested by: George Joseph
Review: https://reviewboard.asterisk.org/r/3993/
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Merged revisions 423276 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 423277 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 423278 from http://svn.asterisk.org/svn/asterisk/branches/12
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Merged revisions 423279 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@423280 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
George Joseph
2014-09-18 14:46:12 +00:00
parent 8839ba3727
commit d120e40309
3 changed files with 19 additions and 8 deletions
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5
include/asterisk/config.h
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@@ -675,8 +675,11 @@ void ast_category_append(struct ast_config *config, struct ast_category *cat);
* \details
* This function is used to insert a new category above another category
* matching the match parameter.
*
* \retval 0 if succeeded
* \retval -1 if NULL parameters or match category was not found
*/
void ast_category_insert(struct ast_config *config, struct ast_category *cat, const char *match);
int ast_category_insert(struct ast_config *config, struct ast_category *cat, const char *match);
int ast_category_delete(struct ast_config *cfg, const char *category);
/*!