Module: kamailio
Branch: master
Commit: 6b5959bc4aa760930ac176b8761af2004260705a
URL: 
https://github.com/kamailio/kamailio/commit/6b5959bc4aa760930ac176b8761af2004260705a

Author: Daniel-Constantin Mierla <[email protected]>
Committer: Daniel-Constantin Mierla <[email protected]>
Date: 2015-07-16T12:21:34+02:00

core: pv api - use buffers for empty and null values

- safer if any transformation wants to temporary update the value for
  some operations

---

Modified: pvapi.c

---

Diff:  
https://github.com/kamailio/kamailio/commit/6b5959bc4aa760930ac176b8761af2004260705a.diff
Patch: 
https://github.com/kamailio/kamailio/commit/6b5959bc4aa760930ac176b8761af2004260705a.patch

---

diff --git a/pvapi.c b/pvapi.c
index d60aebc..3918895 100644
--- a/pvapi.c
+++ b/pvapi.c
@@ -592,6 +592,9 @@ static int pv_get_marker(struct sip_msg *msg, pv_param_t 
*param,
                        (int)pv_str_marker.s[0]);
 }
 
+static char pv_str_empty_buf[2];
+static char pv_str_null_buf[8];
+
 static str pv_str_empty  = { "", 0 };
 static str pv_str_null   = { "<null>", 6 };
 int pv_get_null(struct sip_msg *msg, pv_param_t *param, pv_value_t *res)
@@ -1890,6 +1893,13 @@ int pv_init_api(void)
        tr_init_table();
        if(pv_init_buffer()<0)
                return -1;
+
+       pv_str_empty_buf[0] = '\0';
+       pv_str_empty_buf[1] = '\0';
+       pv_str_empty.s = pv_str_empty_buf;
+       strcpy(pv_str_null_buf, "<null>");
+       pv_str_null.s = pv_str_null_buf;
+
        if(register_pvars_mod("core", _core_pvs)<0)
                return -1;
        return 0;


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