core: functions for light comparison of uri values

- match uri type, user, host, port and proto, but skip params matching

src/core/strutils.c

@@ -496,13 +496,13 @@ int cmp_str_params(str *s1, str *s2)
 }
 
 /**
- * Compare SIP URI as per RFC3261, 19.1.4
+ * Compare SIP URI in light mode or as per RFC3261, 19.1.4
  * return:
  *	- 0: match
  *	- >0: no match
  *	- <0: error
  */
-int cmp_uri(struct sip_uri *uri1, struct sip_uri *uri2)
+int cmp_uri_mode(struct sip_uri *uri1, struct sip_uri *uri2, int cmode)
 {
 	if(uri1->type!=uri2->type)
 		return 1;
@@ -520,6 +520,13 @@ int cmp_uri(struct sip_uri *uri1, struct sip_uri *uri2)
 		return 1;
 	if(cmpi_str(&uri1->host, &uri2->host)!=0)
 		return 1;
+	if(cmode == 1) {
+		/* compare mode light - proto should be the same for match */
+		if(uri1->proto == uri2->proto) {
+			return 0;
+		}
+		return 1;
+	}
 	/* if no params, we are done */
 	if(uri1->params.len==0 && uri2->params.len==0)
 		return 0;
@@ -548,6 +555,30 @@ int cmp_uri(struct sip_uri *uri1, struct sip_uri *uri2)
 	return cmp_str_params(&uri1->params, &uri2->params);
 }
 
+/**
+ * Compare SIP URI as per RFC3261, 19.1.4 (match also params)
+ * return:
+ *	- 0: match
+ *	- >0: no match
+ *	- <0: error
+ */
+int cmp_uri(struct sip_uri *uri1, struct sip_uri *uri2)
+{
+	return cmp_uri_mode(uri1, uri2, 0);
+}
+
+/**
+ * Compare SIP URI light - uri type, user, host, port and proto match
+ * return:
+ *	- 0: match
+ *	- >0: no match
+ *	- <0: error
+ */
+int cmp_uri_light(struct sip_uri *uri1, struct sip_uri *uri2)
+{
+	return cmp_uri_mode(uri1, uri2, 1);
+}
+
 /**
  * return:
  *	- 0: match
@@ -567,6 +598,25 @@ int cmp_uri_str(str *s1, str *s2)
 	return cmp_uri(&uri1, &uri2);
 }
 
+/**
+ * return:
+ *	- 0: match
+ *	- >0: no match
+ *	- <0: error
+ */
+int cmp_uri_light_str(str *s1, str *s2)
+{
+	struct sip_uri uri1;
+	struct sip_uri uri2;
+
+	/* todo: parse uri and compare the parts */
+	if(parse_uri(s1->s, s1->len, &uri1)!=0)
+		return -1;
+	if(parse_uri(s2->s, s2->len, &uri2)!=0)
+		return -1;
+	return cmp_uri_light(&uri1, &uri2);
+}
+
 /**
  * Compare SIP AoR
  * - match user, host and port (if port missing, assume 5060)

src/core/strutils.h

@@ -45,6 +45,7 @@ int cmpi_str(str *s1, str *s2);
 int cmp_hdrname_str(str *s1, str *s2);
 int cmp_hdrname_strzn(str *s1, char *s2, size_t n);
 int cmp_uri_str(str *s1, str *s2);
+int cmp_uri_light_str(str *s1, str *s2);
 int cmp_aor_str(str *s1, str *s2);
 
 /* str regexp replace */