Author: Pekka Riikonen <priikone@silcnet.org>
- Copyright (C) 1997 - 2001 Pekka Riikonen
+ Copyright (C) 1997 - 2008 Pekka Riikonen
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
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
+ the Free Software Foundation; version 2 of the License.
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
-/* $Id$ */
-#include "silcincludes.h"
-#include "silcnet.h"
+#include "silcruntime.h"
+
+/* Returns bound port from listener */
+
+SilcUInt16 *silc_net_listener_get_port(SilcNetListener listener,
+ SilcUInt32 *port_count)
+{
+ SilcUInt16 *ports;
+ int i;
+
+ ports = silc_calloc(listener->socks_count, sizeof(*ports));
+ if (!ports)
+ return NULL;
+
+ for (i = 0; i < listener->socks_count; i++)
+ ports[i] = silc_net_get_local_port(listener->socks[i]);
+
+ if (port_count)
+ *port_count = listener->socks_count;
+
+ return ports;
+}
+
+/* Return bound IP from listener */
+
+char **silc_net_listener_get_ip(SilcNetListener listener,
+ SilcUInt32 *ip_count)
+{
+ char **ips = NULL, *ip;
+ int i, k;
+
+ ips = silc_calloc(listener->socks_count, sizeof(*ips));
+ if (!ips)
+ return NULL;
+
+ for (i = 0, k = 0; i < listener->socks_count; i++) {
+ if (silc_net_check_local_by_sock(listener->socks[i], NULL, &ip))
+ ips[k++] = ip;
+ }
+
+ if (ip_count)
+ *ip_count = k;
+
+ return ips;
+}
+
+/* Return bound hostname from listener */
+
+char **silc_net_listener_get_hostname(SilcNetListener listener,
+ SilcUInt32 *hostname_count)
+{
+ char **hs = NULL, *h;
+ int i, k;
+
+ hs = silc_calloc(listener->socks_count, sizeof(*hs));
+ if (!hs)
+ return NULL;
+
+ for (i = 0, k = 0; i < listener->socks_count; i++) {
+ if (silc_net_check_local_by_sock(listener->socks[i], &h, NULL))
+ hs[k++] = h;
+ }
+
+ if (hostname_count)
+ *hostname_count = k;
+
+ return hs;
+}
/* Accepts a connection from a particular socket */
int silc_net_accept_connection(int sock)
{
- return accept(sock, 0, 0);
+ int ret = accept(sock, 0, 0);
+ if (ret < 0)
+ silc_set_errno_posix(errno);
+ return ret;
}
/* Sets a option for a socket. */
int silc_net_set_socket_opt(int sock, int level, int option, int on)
{
- return setsockopt(sock, level, option, (void *)&on, sizeof(on));
+ int ret = setsockopt(sock, level, option, (void *)&on, sizeof(on));
+ if (ret < 0)
+ silc_set_errno_posix(errno);
+ return ret;
}
/* Get socket options */
-int silc_net_get_socket_opt(int sock, int level, int option,
+int silc_net_get_socket_opt(int sock, int level, int option,
void *optval, int *opt_len)
{
- return getsockopt(sock, level, option, optval, opt_len);
+ int ret = getsockopt(sock, level, option, optval, (unsigned int *)opt_len);
+ if (ret < 0)
+ silc_set_errno_posix(errno);
+ return ret;
}
/* Checks whether IP address sent as argument is valid IPv4 address. */
-bool silc_net_is_ip4(const char *addr)
+SilcBool silc_net_is_ip4(const char *addr)
{
int count = 0;
while (*addr) {
- if (*addr != '.' && !isdigit(*addr))
+ if (*addr != '.' && !isdigit((int)*addr))
return FALSE;
if (*addr == '.')
count++;
if (count != 3)
return FALSE;
-
+
return TRUE;
}
/* Checks whether IP address sent as argument is valid IPv6 address. */
-bool silc_net_is_ip6(const char *addr)
+SilcBool silc_net_is_ip6(const char *addr)
{
/* XXX does this work with all kinds of IPv6 addresses? */
while (*addr) {
- if (*addr != ':' && !isxdigit(*addr))
+ if (*addr != ':' && !isxdigit((int)*addr))
return FALSE;
addr++;
}
-
+
return TRUE;
}
/* Checks whether IP address sent as argument is valid IP address. */
-bool silc_net_is_ip(const char *addr)
+SilcBool silc_net_is_ip(const char *addr)
{
if (silc_net_is_ip4(addr))
return TRUE;
typedef struct {
SilcNetResolveCallback completion;
void *context;
- bool prefer_ipv6;
+ SilcBool prefer_ipv6;
SilcSchedule schedule;
char *input;
char *result;
char tmp[64];
if (silc_net_gethostbyname(r->input, r->prefer_ipv6, tmp, sizeof(tmp)))
- r->result = strdup(tmp);
+ r->result = silc_strdup(tmp);
silc_schedule_task_add(schedule, 0, silc_net_resolve_completion, r, 0, 1,
- SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
+ SILC_TASK_TIMEOUT);
silc_schedule_wakeup(schedule);
return NULL;
}
char tmp[256];
if (silc_net_gethostbyaddr(r->input, tmp, sizeof(tmp)))
- r->result = strdup(tmp);
+ r->result = silc_strdup(tmp);
silc_schedule_task_add(schedule, 0, silc_net_resolve_completion, r, 0, 1,
- SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
+ SILC_TASK_TIMEOUT);
silc_schedule_wakeup(schedule);
return NULL;
}
/* Resolves IP address for hostname. */
-bool silc_net_gethostbyname(const char *name, bool prefer_ipv6, char *address,
- SilcUInt32 address_len)
+SilcBool silc_net_gethostbyname(const char *name,
+ SilcBool prefer_ipv6, char *address,
+ SilcUInt32 address_len)
{
#ifdef HAVE_IPV6
struct addrinfo hints, *ai, *tmp, *ip4 = NULL, *ip6 = NULL;
struct in_addr ip;
char *tmp;
+ if (silc_net_is_ip4(name)) {
+ memset(address, 0, address_len);
+ if (address_len < strlen(name))
+ return FALSE;
+ strncpy(address, name, strlen(name));
+ return TRUE;
+ }
+
hp = gethostbyname(name);
if (!hp)
return FALSE;
memset(address, 0, address_len);
strncpy(address, tmp, strlen(tmp));
#endif
-
+
return TRUE;
}
/* Resolves IP address for hostname async. */
-void silc_net_gethostbyname_async(const char *name,
- bool prefer_ipv6,
+void silc_net_gethostbyname_async(const char *name,
+ SilcBool prefer_ipv6,
SilcSchedule schedule,
SilcNetResolveCallback completion,
void *context)
{
SilcNetResolveContext r = silc_calloc(1, sizeof(*r));
+ if (!schedule) {
+ schedule = silc_schedule_get_global();
+ SILC_VERIFY(schedule);
+ }
+
r->completion = completion;
r->context = context;
r->prefer_ipv6 = prefer_ipv6;
r->schedule = schedule;
- r->input = strdup(name);
+ r->input = silc_strdup(name);
silc_thread_create(silc_net_gethostbyname_thread, r, FALSE);
}
/* Resolves hostname by IP address. */
-bool silc_net_gethostbyaddr(const char *addr, char *name, SilcUInt32 name_len)
+SilcBool silc_net_gethostbyaddr(const char *addr, char *name,
+ SilcUInt32 name_len)
{
#ifdef HAVE_IPV6
struct addrinfo req, *ai;
-
+
memset(&req, 0, sizeof(req));
req.ai_socktype = SOCK_STREAM;
req.ai_flags = AI_CANONNAME;
-
+
if (getaddrinfo(addr, NULL, &req, &ai))
return FALSE;
if (getnameinfo(ai->ai_addr, ai->ai_addrlen, name, name_len, NULL, 0, 0)) {
freeaddrinfo(ai);
#else
struct hostent *hp;
- unsigned char a[16];
+ unsigned char a[4];
if (!silc_net_addr2bin(addr, a, sizeof(a)))
return FALSE;
memset(name, 0, name_len);
strncpy(name, hp->h_name, strlen(hp->h_name));
#endif
-
+
return TRUE;
}
/* Resolves hostname by IP address async. */
-void silc_net_gethostbyaddr_async(const char *addr,
+void silc_net_gethostbyaddr_async(const char *addr,
SilcSchedule schedule,
SilcNetResolveCallback completion,
void *context)
{
SilcNetResolveContext r = silc_calloc(1, sizeof(*r));
+ if (!schedule) {
+ schedule = silc_schedule_get_global();
+ SILC_VERIFY(schedule);
+ }
+
r->completion = completion;
r->context = context;
r->schedule = schedule;
- r->input = strdup(addr);
+ r->input = silc_strdup(addr);
silc_thread_create(silc_net_gethostbyaddr_thread, r, FALSE);
}
+#ifndef SILC_SYMBIAN
+
/* Performs lookups for remote name and IP address. This peforms reverse
lookup as well to verify that the IP has FQDN. */
-bool silc_net_check_host_by_sock(int sock, char **hostname, char **ip)
+SilcBool silc_net_check_host_by_sock(SilcSocket sock, char **hostname,
+ char **ip)
{
char host[1024];
- int rval, len;
+ int rval;
+ unsigned int len;
#ifdef HAVE_IPV6
struct sockaddr_storage remote;
/* Performs lookups for local name and IP address. This peforms reverse
lookup as well to verify that the IP has FQDN. */
-bool silc_net_check_local_by_sock(int sock, char **hostname, char **ip)
+SilcBool silc_net_check_local_by_sock(SilcSocket sock, char **hostname,
+ char **ip)
{
char host[1024];
- int rval, len;
+ int rval;
+ unsigned int len;
#ifdef HAVE_IPV6
struct sockaddr_storage local;
/* Return remote port by socket. */
-SilcUInt16 silc_net_get_remote_port(int sock)
+SilcUInt16 silc_net_get_remote_port(SilcSocket sock)
{
#ifdef HAVE_IPV6
struct sockaddr_storage remote;
- int len;
+ unsigned int len;
char s[NI_MAXSERV];
memset(&remote, 0, sizeof(remote));
if (getnameinfo((struct sockaddr *)&remote, len, NULL, 0, s, sizeof(s),
NI_NUMERICSERV))
return 0;
-
+
return atoi(s);
#else
struct sockaddr_in remote;
- int len;
+ unsigned int len;
memset(&remote, 0, sizeof(remote));
len = sizeof(remote);
/* Return local port by socket. */
-SilcUInt16 silc_net_get_local_port(int sock)
+SilcUInt16 silc_net_get_local_port(SilcSocket sock)
{
#ifdef HAVE_IPV6
struct sockaddr_storage local;
- int len;
+ unsigned int len;
char s[NI_MAXSERV];
memset(&local, 0, sizeof(local));
if (getnameinfo((struct sockaddr *)&local, len, NULL, 0, s, sizeof(s),
NI_NUMERICSERV))
return 0;
-
+
return atoi(s);
#else
struct sockaddr_in local;
- int len;
+ unsigned int len;
memset(&local, 0, sizeof(local));
len = sizeof(local);
return ntohs(local.sin_port);
#endif
}
+#endif /* !SILC_SYMBIAN */
/* Return name of localhost. */
return NULL;
if (!silc_net_gethostbyname(hostname, TRUE, ip_addr, sizeof(ip_addr)))
- return strdup(hostname);
+ return silc_strdup(hostname);
silc_net_gethostbyaddr(ip_addr, hostname, sizeof(hostname));
- return strdup(hostname);
+ return silc_strdup(hostname);
}
/* Returns local IP address */
if (!silc_net_gethostbyname(hostname, TRUE, ip_addr, sizeof(ip_addr)))
return NULL;
- return strdup(ip_addr);
+ return silc_strdup(ip_addr);
+}
+
+/* Convert network byte order IP to string */
+
+SilcBool silc_net_bin2addr(const void *bin, SilcUInt32 bin_len,
+ char *addr, SilcUInt32 addr_size)
+{
+ if (!addr || !addr_size)
+ return TRUE;
+
+ if (bin_len == 16) {
+#ifdef HAVE_IPV6
+ struct sockaddr_in6 ipv6;
+ memset(&ipv6, 0, sizeof(ipv6));
+ ipv6.sin6_family = AF_INET6;
+ memcpy(&ipv6.sin6_addr, bin, sizeof(ipv6.sin6_addr));
+ if (!getnameinfo((struct sockaddr *)&ipv6, sizeof(ipv6),
+ addr, addr_size, NULL, 0, NI_NUMERICHOST))
+ return TRUE;
+#else
+ return FALSE;
+#endif /* HAVE_IPV6 */
+ } else if (bin_len == 4) {
+ struct in_addr ipv4;
+ char *a;
+
+ memcpy(&ipv4.s_addr, bin, 4);
+ a = inet_ntoa(ipv4);
+ if (!a)
+ return FALSE;
+
+ silc_snprintf(addr, addr_size, a);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/* Host to network byte order */
+
+SilcUInt32 silc_htonl(SilcUInt32 host)
+{
+#ifdef WORDS_BIGENDIAN
+ return host;
+#else
+ return SILC_SWAB_32(host);
+#endif /* WORDS_BIGENDIAN */
+}
+
+/* Network to host byte order */
+
+SilcUInt32 silc_ntohl(SilcUInt32 net)
+{
+#ifdef WORDS_BIGENDIAN
+ return net;
+#else
+ return SILC_SWAB_32(net);
+#endif /* WORDS_BIGENDIAN */
+}
+
+/* Host to network byte order */
+
+SilcUInt16 silc_htons(SilcUInt16 host)
+{
+#ifdef WORDS_BIGENDIAN
+ return net;
+#else
+ return SILC_SWAB_16(host);
+#endif /* WORDS_BIGENDIAN */
+}
+
+/* Network to host byte order */
+
+SilcUInt16 silc_ntohs(SilcUInt16 net)
+{
+#ifdef WORDS_BIGENDIAN
+ return net;
+#else
+ return SILC_SWAB_16(net);
+#endif /* WORDS_BIGENDIAN */
}