X-Git-Url: http://git.tdb.fi/?p=libs%2Fnet.git;a=blobdiff_plain;f=source%2Fnet%2Fresolve.cpp;fp=source%2Fnet%2Fresolve.cpp;h=e8aad664d3cb5c722f032874352c60c15a5309e9;hp=0000000000000000000000000000000000000000;hb=50e9f9ea7f7385a2c5931fca2b8fb1103078e67c;hpb=21c596567e3b6fd794ed6af73d304ce2bc70e58f

diff --git a/source/net/resolve.cpp b/source/net/resolve.cpp
new file mode 100644
index 0000000..e8aad66
--- /dev/null
+++ b/source/net/resolve.cpp
@@ -0,0 +1,90 @@
+#ifdef WIN32
+#define _WIN32_WINNT 0x0501
+#include <ws2tcpip.h>
+#else
+#include <netdb.h>
+#endif
+#include <msp/core/systemerror.h>
+#include <msp/strings/format.h>
+#include "sockaddr_private.h"
+#include "socket.h"
+#include "resolve.h"
+
+using namespace std;
+
+namespace Msp {
+namespace Net {
+
+SockAddr *resolve(const string &host, const string &serv, Family family)
+{
+	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;
+		chost = 0;
+	}
+
+	addrinfo hints = { flags, family_to_sys(family), 0, 0, 0, 0, 0, 0 };
+	addrinfo *res;
+
+	int err = getaddrinfo(chost, cserv, &hints, &res);
+	if(err==0)
+	{
+		SockAddr::SysAddr sa;
+		sa.size = res->ai_addrlen;
+		const char *sptr = reinterpret_cast<const char *>(res->ai_addr);
+		char *dptr = reinterpret_cast<char *>(&sa.addr);
+		copy(sptr, sptr+res->ai_addrlen, dptr);
+		SockAddr *addr = SockAddr::new_from_sys(sa);
+		freeaddrinfo(res);
+		return addr;
+	}
+	else
+#ifdef WIN32
+		throw system_error("getaddrinfo", WSAGetLastError());
+#else
+		throw system_error("getaddrinfo", gai_strerror(err));
+#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];
+		char srv[128];
+		int err = getnameinfo(&sa, size, hst, 128, srv, 128, 0);
+		if(err==0)
+		{
+			host = hst;
+			serv = srv;
+		}*/
+
+} // namespace Net
+} // namespace Msp