Module: sip-router
Branch: master
Commit: 262b5880616d8b58cf9b012b460793f9879087b3
URL:    
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=262b5880616d8b58cf9b012b460793f9879087b3

Author: Juha Heinanen <[email protected]>
Committer: Juha Heinanen <[email protected]>
Date:   Wed Apr 10 22:42:43 2013 +0300

modules/registrar: fixed bug in un-escaping of path/received

---

 modules/registrar/path.c |   30 ++++++++++++++++++++----------
 1 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/modules/registrar/path.c b/modules/registrar/path.c
index 63c282c..ef976e0 100644
--- a/modules/registrar/path.c
+++ b/modules/registrar/path.c
@@ -37,16 +37,17 @@
 
 
 /*! \brief Unscape all printable ASCII characters */
-int unescape_string(str *sin)
+int unescape_string(str *sin, str *sout)
 {
        char *at, *p, c;
 
-       if (sin == NULL || sin->s == NULL || sin->len < 0)
+       if(sin==NULL || sout==NULL || sin->s==NULL || sout->s==NULL
+                       || sin->len<0 || sout->len < sin->len+1)
                return -1;
 
-       at = sin->s;
+       at = sout->s;
        p  = sin->s;
-       while(p < sin->s + sin->len)
+       while(p < sin->s+sin->len)
        {
            if (*p == '%')
                {
@@ -129,11 +130,13 @@ int unescape_string(str *sin)
            } else {
                        *at++ = *p;
            }
-           p++;
+               p++;
        }
 
-       sin->len = at - sin->s;
+       *at = 0;
+       sout->len = at - sout->s;
        
+       LM_DBG("unescaped string is <%s>\n", sout->s);
        return 0;
 }
 
@@ -143,6 +146,8 @@ int unescape_string(str *sin)
 int build_path_vector(struct sip_msg *_m, str *path, str *received)
 {
        static char buf[MAX_PATH_SIZE];
+       static char uri_buf[MAX_URI_SIZE];
+       static str uri_str;
        char *p;
        struct hdr_field *hdr;
        struct sip_uri puri;
@@ -196,10 +201,14 @@ int build_path_vector(struct sip_msg *_m, str *path, str 
*received)
                        }
 
                        if (hooks.contact.received) {
-                               *received = hooks.contact.received->body;
-                               if (unescape_string(received) < 0)
-                                   LM_ERR("unescaping received value <%.*s> 
failed\n",
-                                          received->len, received->s);
+                               uri_str.s = uri_buf;
+                               uri_str.len = MAX_URI_SIZE;
+                               if 
(unescape_string(&(hooks.contact.received->body), &uri_str) < 0) {
+                                   LM_ERR("unescaping received failed\n");
+                                   goto error;
+                               }
+                               *received = uri_str;
+                               LM_DBG("received is <%.*s>\n", received->len, 
received->s);
                        }
                                
                        /*for (;params; params = params->next) {
@@ -215,6 +224,7 @@ int build_path_vector(struct sip_msg *_m, str *path, str 
*received)
 
        path->s = buf;
        path->len = p-buf;
+       LM_DBG("path is <%.*s>\n", path->len, path->s);
        return 0;
 error:
        if(route) free_rr(&route);


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