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-rw-r--r--funcs/func_strings.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/funcs/func_strings.c b/funcs/func_strings.c
index 97132a515..fcecb77fd 100644
--- a/funcs/func_strings.c
+++ b/funcs/func_strings.c
@@ -119,6 +119,11 @@ static int regex(struct ast_channel *chan, char *cmd, char *parse, char *buf,
AST_NONSTANDARD_APP_ARGS(args, parse, '"');
+ if (args.argc != 3) {
+ ast_log(LOG_ERROR, "Unexpected arguments: should have been in the form '\"<regex>\" <string>'\n");
+ return -1;
+ }
+
ast_log(LOG_DEBUG, "FUNCTION REGEX (%s)(%s)\n", args.reg, args.str);
if ((errcode = regcomp(&regexbuf, args.reg, REG_EXTENDED | REG_NOSUB))) {