Add source.

1 files changed, 45 insertions, 0 deletions

diff --git a/sdk/net/getservice.c b/sdk/net/getservice.c
new file mode 100644
index 0000000..fed448e
--- /dev/null
+++ b/sdk/net/getservice.c
@@ -0,0 +1,45 @@
+/*
+ * Simple portable service name lookup.
+ * $Id$
+ * Copyright (c) 1997 by Tycho Softworks.
+ * For conditions of distribution and reuse see product license.
+ */
+
+#include <net/socket.h>
+#include <std/string.h>
+
+int	getservice(const char *service)
+{
+	char	servname[32];
+	char	*p;
+	struct	servent *svc;
+	struct	protoent *proto;
+	
+	if(isdigit(*service))
+		return atoi(service);
+		
+	strcpy(servname, service);
+	p = strchr(servname, '/');
+	if(!p)
+		strcat(servname, "/tcp");
+		
+	p = strchr(servname, '/');
+	*(p++) = 0;
+	if(isdigit(*p))
+	{
+		proto = getprotobynumber(atoi(p));
+		if(!proto)
+			return 0;
+		
+			p = proto->p_name;
+	}
+	svc = getservbyname(servname, p);
+	if(!svc)
+		return 0;
+	
+	return ntohs(svc->s_port);
+}
+
+	
+	
+