[sr-dev] git:5.0:dccca195: pv: declare the pv_empty as buffer with size

[Juha Heinanen]

Module: kamailio
Branch: 5.0
Commit: dccca1959b6f96bb508baa9dab0eacba7c69f20c
URL: https://github.com/kamailio/kamailio/commit/dccca1959b6f96bb508baa9dab0eacba7c69f20c

Author: Daniel-Constantin Mierla <miconda at gmail.com>
Committer: Juha Heinanen <jh at tutpro.com>
Date: 2017-04-08T09:02:38+03:00

pv: declare the pv_empty as buffer with size

- otherwise it can crash when code tries to write in it, if pointing to
  static empty string
- reported by Juha Heinanen

(cherry picked from commit 1e37b31f8a28ccc6f44eaf75e5f02e836df20411)

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Modified: src/modules/pv/pv_trans.c

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Diff:  https://github.com/kamailio/kamailio/commit/dccca1959b6f96bb508baa9dab0eacba7c69f20c.diff
Patch: https://github.com/kamailio/kamailio/commit/dccca1959b6f96bb508baa9dab0eacba7c69f20c.patch

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diff --git a/src/modules/pv/pv_trans.c b/src/modules/pv/pv_trans.c
index 6ad9a97..25723bd 100644
--- a/src/modules/pv/pv_trans.c
+++ b/src/modules/pv/pv_trans.c
@@ -50,7 +50,7 @@
 #include "pv_trans.h"
 
 
-static char _empty_str[] = "";
+static char _empty_str[2] = {0};
 static str _tr_empty = { _empty_str, 0 };
 static str _tr_uri = {0, 0};
 static struct sip_uri _tr_parsed_uri;