X-Git-Url: https://www.tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fpokey%2Fnetutl.c;fp=src%2Fpokey%2Fnetutl.c;h=0000000000000000000000000000000000000000;hb=013a2e159e42c46808ea8d0b6abd57525db30a50;hp=cb23574e6534530f50362b98dbc122ded647e0a9;hpb=efa5148bc76effb440d807d653dda02de050fde0;p=tinc diff --git a/src/pokey/netutl.c b/src/pokey/netutl.c deleted file mode 100644 index cb23574e..00000000 --- a/src/pokey/netutl.c +++ /dev/null @@ -1,250 +0,0 @@ -/* - netutl.c -- some supporting network utility code - Copyright (C) 1998-2002 Ivo Timmermans - 2000-2002 Guus Sliepen - - 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. - - 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. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - - $Id: netutl.c,v 1.1 2002/04/28 12:46:26 zarq Exp $ -*/ - -#include "config.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include "errno.h" -#include "interface.h" -#include "conf.h" -#include "net.h" -#include "netutl.h" -#include "logging.h" - -#include "system.h" - -int hostnames = 0; - -/* - Turn a string into a struct addrinfo. - Return NULL on failure. -*/ -struct addrinfo *str2addrinfo(char *address, char *service, int socktype) -{ - struct addrinfo hint, *ai; - int err; -cp - memset(&hint, 0, sizeof(hint)); - - hint.ai_family = addressfamily; - hint.ai_socktype = socktype; - - if((err = getaddrinfo(address, service, &hint, &ai))) - { - log(DEBUG_ERROR, LOG_WARNING, - _("Error looking up %s port %s: %s\n"), - address, service, gai_strerror(err)); - cp_trace(); - return NULL; - } - -cp - return ai; -} - -sockaddr_t str2sockaddr(char *address, char *port) -{ - struct addrinfo hint, *ai; - sockaddr_t result; - int err; -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)) - { - log(0, TLOG_ERROR, - _("Error looking up %s port %s: %s\n"), - address, port, gai_strerror(err)); - cp_trace(); - raise(SIGFPE); - exit(0); - } - - result = *(sockaddr_t *)ai->ai_addr; - freeaddrinfo(ai); -cp - return result; -} - -void sockaddr2str(sockaddr_t *sa, char **addrstr, char **portstr) -{ - char address[NI_MAXHOST]; - char port[NI_MAXSERV]; - char *scopeid; - int err; -cp - if((err = getnameinfo(&sa->sa, SALEN(sa->sa), address, sizeof(address), port, sizeof(port), NI_NUMERICHOST|NI_NUMERICSERV))) - { - syslog(LOG_ERR, _("Error while translating addresses: %s"), gai_strerror(err)); - cp_trace(); - raise(SIGFPE); - exit(0); - } - -#ifdef HAVE_LINUX - if((scopeid = strchr(address, '%'))) - *scopeid = '\0'; /* Descope. */ -#endif - - *addrstr = xstrdup(address); - *portstr = xstrdup(port); -cp -} - -char *sockaddr2hostname(sockaddr_t *sa) -{ - char *str; - char address[NI_MAXHOST] = "unknown"; - char port[NI_MAXSERV] = "unknown"; - int err; -cp - if((err = getnameinfo(&sa->sa, SALEN(sa->sa), address, sizeof(address), port, sizeof(port), hostnames?0:(NI_NUMERICHOST|NI_NUMERICSERV)))) - { - syslog(LOG_ERR, _("Error while looking up hostname: %s"), gai_strerror(err)); - } - - asprintf(&str, _("%s port %s"), address, port); -cp - return str; -} - -int sockaddrcmp(sockaddr_t *a, 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_INET: - 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: - 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 -} - -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 i, m, result; -cp - for(m = masklen, i = 0; m >= 8; m -= 8, i++) - if((result = a[i] - b[i])) - return result; - - if(m) - return (a[i] & (0x100 - (m << 1))) - (b[i] & (0x100 - (m << 1))); - - return 0; -} - -void mask(char *a, int masklen, int len) -{ - int i; -cp - i = masklen / 8; - masklen %= 8; - - if(masklen) - a[i++] &= (0x100 - (masklen << 1)); - - for(; i < len; i++) - a[i] = 0; -} - -void maskcpy(char *a, char *b, int masklen, int len) -{ - int i, m; -cp - for(m = masklen, i = 0; m >= 8; m -= 8, i++) - a[i] = b[i]; - - if(m) - { - a[i] = b[i] & (0x100 - (m << 1)); - i++; - } - - for(; i < len; i++) - a[i] = 0; -} - -int maskcheck(char *a, int masklen, int len) -{ - int i; -cp - i = masklen / 8; - masklen %= 8; - - if(masklen) - if(a[i++] & ~(0x100 - (masklen << 1))) - return -1; - - for(; i < len; i++) - if(a[i] != 0) - return -1; - - return 0; -}