X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fnetutl.c;h=206486056de095597f0006f1eddd5d8df339e4c0;hp=1ab4c2cb8e9ce727c2daf325dbcf9ff6b65548bc;hb=3308d13e7e3bf20cfeaf6f2ab17228a9820cea66;hpb=72bdc05cb7e246e56ed21a25256d441c45fccca8

diff --git a/src/netutl.c b/src/netutl.c
index 1ab4c2cb..20648605 100644
--- a/src/netutl.c
+++ b/src/netutl.c
@@ -1,7 +1,7 @@
 /*
     netutl.c -- some supporting network utility code
-    Copyright (C) 1998-2003 Ivo Timmermans <ivo@o2w.nl>
-                  2000-2003 Guus Sliepen <guus@sliepen.eu.org>
+    Copyright (C) 1998-2005 Ivo Timmermans
+                  2000-2006 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: netutl.c,v 1.12.4.53 2003/08/22 11:18:42 guus Exp $
+    $Id$
 */
 
 #include "system.h"
@@ -78,7 +78,7 @@ sockaddr_t str2sockaddr(const char *address, const char *port)
 		return result;
 	}
 
-	result = *(sockaddr_t *) ai->ai_addr;
+	memcpy(&result, ai->ai_addr, ai->ai_addrlen);
 	freeaddrinfo(ai);
 
 	return result;
@@ -144,6 +144,39 @@ char *sockaddr2hostname(const sockaddr_t *sa)
 	return str;
 }
 
+int sockaddrcmp_noport(const sockaddr_t *a, const sockaddr_t *b)
+{
+	int result;
+
+	cp();
+
+	result = a->sa.sa_family - b->sa.sa_family;
+
+	if(result)
+		return result;
+
+	switch (a->sa.sa_family) {
+		case AF_UNSPEC:
+			return 0;
+
+		case AF_UNKNOWN:
+			return strcmp(a->unknown.address, b->unknown.address);
+
+		case AF_INET:
+			return memcmp(&a->in.sin_addr, &b->in.sin_addr, sizeof(a->in.sin_addr));
+
+		case AF_INET6:
+			return memcmp(&a->in6.sin6_addr, &b->in6.sin6_addr, sizeof(a->in6.sin6_addr));
+
+		default:
+			logger(LOG_ERR, _("sockaddrcmp() was called with unknown address family %d, exitting!"),
+				   a->sa.sa_family);
+			cp_trace();
+			raise(SIGFPE);
+			exit(0);
+	}
+}
+
 int sockaddrcmp(const sockaddr_t *a, const sockaddr_t *b)
 {
 	int result;
@@ -193,6 +226,8 @@ int sockaddrcmp(const sockaddr_t *a, const sockaddr_t *b)
 }
 
 void sockaddrcpy(sockaddr_t *a, const sockaddr_t *b) {
+	cp();
+
 	if(b->sa.sa_family != AF_UNKNOWN) {
 		*a = *b;
 	} else {
@@ -203,6 +238,8 @@ void sockaddrcpy(sockaddr_t *a, const sockaddr_t *b) {
 }
 
 void sockaddrfree(sockaddr_t *a) {
+	cp();
+
 	if(a->sa.sa_family == AF_UNKNOWN) {
 		free(a->unknown.address);
 		free(a->unknown.port);
@@ -211,6 +248,8 @@ void sockaddrfree(sockaddr_t *a) {
 	
 void sockaddrunmap(sockaddr_t *sa)
 {
+	cp();
+
 	if(sa->sa.sa_family == AF_INET6 && IN6_IS_ADDR_V4MAPPED(&sa->in6.sin6_addr)) {
 		sa->in.sin_addr.s_addr = ((uint32_t *) & sa->in6.sin6_addr)[3];
 		sa->in.sin_family = AF_INET;
@@ -219,7 +258,7 @@ void sockaddrunmap(sockaddr_t *sa)
 
 /* Subnet mask handling */
 
-int maskcmp(const void *va, const void *vb, int masklen, int len)
+int maskcmp(const void *va, const void *vb, int masklen)
 {
 	int i, m, result;
 	const char *a = va;
@@ -251,7 +290,7 @@ void mask(void *va, int masklen, int len)
 	masklen %= 8;
 
 	if(masklen)
-		a[i++] &= (0x100 - (1 << masklen));
+		a[i++] &= (0x100 - (1 << (8 - masklen)));
 
 	for(; i < len; i++)
 		a[i] = 0;
@@ -269,7 +308,7 @@ void maskcpy(void *va, const void *vb, int masklen, int len)
 		a[i] = b[i];
 
 	if(m) {
-		a[i] = b[i] & (0x100 - (1 << m));
+		a[i] = b[i] & (0x100 - (1 << (8 - m)));
 		i++;
 	}