From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 10 Aug 2011 17:49:39 +0000 (+0300)
Subject: Add an overload for resolve that takes host and service separately
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=21c596567e3b6fd794ed6af73d304ce2bc70e58f;p=libs%2Fnet.git

Add an overload for resolve that takes host and service separately
---

diff --git a/source/resolve.cpp b/source/resolve.cpp
index 6e17a1a..e8aad66 100644
--- a/source/resolve.cpp
+++ b/source/resolve.cpp
@@ -15,40 +15,20 @@ using namespace std;
 namespace Msp {
 namespace Net {
 
-SockAddr *resolve(const string &s, Family family)
+SockAddr *resolve(const string &host, const string &serv, Family family)
 {
-	string host, serv;
-	if(s[0]=='[')
-	{
-		unsigned bracket = s.find(']');
-		host = s.substr(1, bracket-1);
-		unsigned colon = s.find(':', bracket);
-		if(colon!=string::npos)
-			serv = s.substr(colon+1);
-	}
-	else
-	{
-		unsigned colon = s.find(':');
-		if(colon!=string::npos)
-		{
-			host = s.substr(0, colon);
-			serv = s.substr(colon+1);
-		}
-		else
-			host = s;
-	}
-
+	const char *chost = (host.empty() ? 0 : host.c_str());
+	const char *cserv = (serv.empty() ? 0 : serv.c_str());
 	unsigned flags = 0;
 	if(host=="*")
 	{
 		flags = AI_PASSIVE;
-		host = string();
+		chost = 0;
 	}
 
 	addrinfo hints = { flags, family_to_sys(family), 0, 0, 0, 0, 0, 0 };
 	addrinfo *res;
-	const char *chost = (host.empty() ? 0 : host.c_str());
-	const char *cserv = (serv.empty() ? 0 : serv.c_str());
+
 	int err = getaddrinfo(chost, cserv, &hints, &res);
 	if(err==0)
 	{
@@ -69,6 +49,32 @@ SockAddr *resolve(const string &s, Family family)
 #endif
 }
 
+SockAddr *resolve(const string &str, Family family)
+{
+	string host, serv;
+	if(str[0]=='[')
+	{
+		unsigned bracket = str.find(']');
+		host = str.substr(1, bracket-1);
+		unsigned colon = str.find(':', bracket);
+		if(colon!=string::npos)
+			serv = str.substr(colon+1);
+	}
+	else
+	{
+		unsigned colon = str.find(':');
+		if(colon!=string::npos)
+		{
+			host = str.substr(0, colon);
+			serv = str.substr(colon+1);
+		}
+		else
+			host = str;
+	}
+
+	return resolve(host, serv, family);
+}
+
 		/*sockaddr sa;
 		unsigned size = fill_sockaddr(sa);
 		char hst[128];
diff --git a/source/resolve.h b/source/resolve.h
index 0afc9ad..256455f 100644
--- a/source/resolve.h
+++ b/source/resolve.h
@@ -9,6 +9,15 @@ namespace Net {
 
 class SockAddr;
 
+/** Resolves host and service names into a socket address.  If host is empty,
+the loopback address will be used.  If host is "*", the wildcard address will
+be used.  If service is empty, a socket address with a null service will be
+returned.  With the IP families, these are not very useful. */
+SockAddr *resolve(const std::string &, const std::string &, Family = UNSPEC);
+
+/** And overload of resolve() that takes host and service as a single string,
+separated by a colon.  If the host part contains colons, such as is the case
+with a numeric IPv6 address, it must be enclosed in brackets. */
 SockAddr *resolve(const std::string &, Family = UNSPEC);
 
 } // namespace Net