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Don't set the full command string until after verifying that there is not

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another CLI command with the same command text registered.  This prevents
a crash if someone accidentally calls ast_cli_register()  on the same CLI
command data twice.  This also fixes a small bug where the helpers list
would get unlocked without being locked if building the full command failed.
(closes issue #10858, reported by jamesgolovich, patched by me)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@84169 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2007-10-01 14:55:10 +00:00
parent df30de142c
commit 7c01bf15df
1 changed files with 2 additions and 4 deletions
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6
main/cli.c
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@@ -1407,16 +1407,14 @@ static int __ast_cli_register(struct ast_cli_entry *e, struct ast_cli_entry *ed)
}
*dst++ = NULL;
}
if (set_full_cmd(e))
goto done;
AST_RWLIST_WRLOCK(&helpers);
if (find_cli(e->cmda, 1)) {
ast_log(LOG_WARNING, "Command '%s' already registered (or something close enough)\n", e->_full_cmd);
ast_free(e->_full_cmd);
e->_full_cmd = NULL;
goto done;
}
if (set_full_cmd(e))
goto done;
if (!ed) {
e->deprecated = 0;
} else {