/*
netutl.c -- some supporting network utility code
- Copyright (C) 1998-2002 Ivo Timmermans <itimmermans@bigfoot.com>
- 2000-2002 Guus Sliepen <guus@sliepen.warande.net>
+ Copyright (C) 1998-2002 Ivo Timmermans <ivo@o2w.nl>
+ 2000-2002 Guus Sliepen <guus@sliepen.eu.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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: netutl.c,v 1.12.4.25 2002/02/20 17:15:33 guus Exp $
+ $Id: netutl.c,v 1.12.4.42 2002/09/09 19:39:59 guus Exp $
*/
#include "config.h"
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
+#ifdef HAVE_INTTYPES_H
+ #include <inttypes.h>
+#endif
#include <string.h>
#include <signal.h>
#include <sys/socket.h>
{
struct addrinfo hint, *ai;
int err;
-cp
+ cp();
memset(&hint, 0, sizeof(hint));
hint.ai_family = addressfamily;
hint.ai_socktype = socktype;
- if((err = getaddrinfo(address, service, &hint, &ai)))
+ err = getaddrinfo(address, service, &hint, &ai);
+
+ if(err)
{
if(debug_lvl >= DEBUG_ERROR)
syslog(LOG_WARNING, _("Error looking up %s port %s: %s\n"), address, service, gai_strerror(err));
return NULL;
}
-cp
+ cp();
return ai;
}
struct addrinfo hint, *ai;
sockaddr_t result;
int err;
-cp
+ cp();
memset(&hint, 0, sizeof(hint));
hint.ai_family = AF_UNSPEC;
hint.ai_flags = AI_NUMERICHOST;
hint.ai_socktype = SOCK_STREAM;
- if((err = getaddrinfo(address, port, &hint, &ai) || !ai))
+ err = getaddrinfo(address, port, &hint, &ai);
+
+ if(err || !ai)
{
syslog(LOG_ERR, _("Error looking up %s port %s: %s\n"), address, port, gai_strerror(err));
cp_trace();
result = *(sockaddr_t *)ai->ai_addr;
freeaddrinfo(ai);
-cp
+ cp();
return result;
}
{
char address[NI_MAXHOST];
char port[NI_MAXSERV];
+ char *scopeid;
int err;
-cp
- if((err = getnameinfo((struct sockaddr *)sa, sizeof(sockaddr_t), address, sizeof(address), port, sizeof(port), NI_NUMERICHOST|NI_NUMERICSERV)))
+ cp();
+ err = getnameinfo(&sa->sa, SALEN(sa->sa), address, sizeof(address), port, sizeof(port), NI_NUMERICHOST|NI_NUMERICSERV);
+
+ if(err)
{
syslog(LOG_ERR, _("Error while translating addresses: %s"), gai_strerror(err));
cp_trace();
exit(0);
}
+ scopeid = strchr(address, '%');
+
+ if(scopeid)
+ *scopeid = '\0'; /* Descope. */
+
*addrstr = xstrdup(address);
*portstr = xstrdup(port);
-cp
+ cp();
}
char *sockaddr2hostname(sockaddr_t *sa)
char address[NI_MAXHOST] = "unknown";
char port[NI_MAXSERV] = "unknown";
int err;
-cp
- if((err = getnameinfo((struct sockaddr *)sa, sizeof(sockaddr_t), address, sizeof(address), port, sizeof(port), hostnames?0:(NI_NUMERICHOST|NI_NUMERICSERV))))
+ cp();
+ err = getnameinfo(&sa->sa, SALEN(sa->sa), address, sizeof(address), port, sizeof(port), hostnames?0:(NI_NUMERICHOST|NI_NUMERICSERV));
+ if(err)
{
syslog(LOG_ERR, _("Error while looking up hostname: %s"), gai_strerror(err));
}
asprintf(&str, _("%s port %s"), address, port);
-cp
+ cp();
return str;
}
int sockaddrcmp(sockaddr_t *a, sockaddr_t *b)
{
int result;
-cp
+ cp();
result = a->sa.sa_family - b->sa.sa_family;
if(result)
case AF_UNSPEC:
return 0;
case AF_INET:
- return memcmp(&a->in, &b->in, sizeof(a->in));
+ result = memcmp(&a->in.sin_addr, &b->in.sin_addr, sizeof(a->in.sin_addr));
+ if(result)
+ return result;
+ return memcmp(&a->in.sin_port, &b->in.sin_port, sizeof(a->in.sin_port));
case AF_INET6:
- return memcmp(&a->in6, &b->in6, sizeof(a->in6));
+ result = memcmp(&a->in6.sin6_addr, &b->in6.sin6_addr, sizeof(a->in6.sin6_addr));
+ if(result)
+ return result;
+ return memcmp(&a->in6.sin6_port, &b->in6.sin6_port, sizeof(a->in6.sin6_port));
default:
syslog(LOG_ERR, _("sockaddrcmp() was called with unknown address family %d, exitting!"), a->sa.sa_family);
cp_trace();
raise(SIGFPE);
exit(0);
}
-cp
+ cp();
+}
+
+void sockaddrunmap(sockaddr_t *sa)
+{
+ 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;
+ }
}
/* Subnet mask handling */
-int maskcmp(char *a, char *b, int masklen, int len)
+int maskcmp(void *va, void *vb, int masklen, int len)
{
int i, m, result;
-cp
+ char *a = va;
+ char *b = vb;
+ cp();
for(m = masklen, i = 0; m >= 8; m -= 8, i++)
- if((result = a[i] - b[i]))
- return result;
-
+ {
+ result = a[i] - b[i];
+ if(result)
+ return result;
+ }
+
if(m)
- return (a[i] & (0x100 - (m << 1))) - (b[i] & (0x100 - (m << 1)));
+ return (a[i] & (0x100 - (1 << (8 - m)))) - (b[i] & (0x100 - (1 << (8 - m))));
return 0;
}
-void mask(char *a, int masklen, int len)
+void mask(void *va, int masklen, int len)
{
int i;
-cp
+ char *a = va;
+ cp();
i = masklen / 8;
masklen %= 8;
if(masklen)
- a[i++] &= (0x100 - (masklen << 1));
+ a[i++] &= (0x100 - (1 << masklen));
for(; i < len; i++)
a[i] = 0;
}
-void maskcpy(char *a, char *b, int masklen, int len)
+void maskcpy(void *va, void *vb, int masklen, int len)
{
int i, m;
-cp
+ char *a = va;
+ char *b = vb;
+ cp();
for(m = masklen, i = 0; m >= 8; m -= 8, i++)
a[i] = b[i];
if(m)
{
- a[i] = b[i] & (0x100 - (m << 1));
+ a[i] = b[i] & (0x100 - (1 << m));
i++;
}
a[i] = 0;
}
-int maskcheck(char *a, int masklen, int len)
+int maskcheck(void *va, int masklen, int len)
{
int i;
-cp
+ char *a = va;
+ cp();
i = masklen / 8;
masklen %= 8;
-
- if(masklen)
- if(a[i++] & ~(0x100 - (masklen << 1)))
- return -1;
-
+
+ if(masklen && a[i++] & (0xff >> masklen))
+ return -1;
+
for(; i < len; i++)
if(a[i] != 0)
- return -1;
+ return -2;
return 0;
}