118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/***************************************************************************
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* Copyright (C) 07/2007 by Olaf Rempel *
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* razzor@kopf-tisch.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; version 2 of the License *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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int parse_sockaddr(const char *addr, struct sockaddr_in *sa)
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{
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char *buf = strdup(addr);
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if (buf == NULL)
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return -1;
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char *tmp;
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char *ipstr = strtok_r(buf, ":", &tmp);
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if (ipstr == NULL) {
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free(buf);
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return -2;
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}
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sa->sin_family = AF_INET;
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if (inet_pton(AF_INET, ipstr, &sa->sin_addr) <= 0) {
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free(buf);
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return -3;
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}
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char *portstr = strtok_r(NULL, " \r\n", &tmp);
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if (portstr == NULL) {
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free(buf);
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return -4;
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}
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int port = atoi(portstr);
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if (port < 0 || port > 65535) {
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free(buf);
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return -5;
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}
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sa->sin_port = htons(port);
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free(buf);
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return 0;
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}
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int parse_subnet(const char *addr, struct in_addr *net, struct in_addr *mask)
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{
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char *buf = strdup(addr);
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if (buf == NULL)
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return -1;
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char *tmp;
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char *netstr = strtok_r(buf, "/", &tmp);
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if (netstr == NULL) {
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free(buf);
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return -2;
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}
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if (inet_pton(AF_INET, netstr, net) <= 0) {
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free(buf);
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return -3;
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}
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char *maskstr = strtok_r(NULL, " \r\n", &tmp);
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if (maskstr == NULL) {
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mask->s_addr = ~0;
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} else if (inet_pton(AF_INET, maskstr, mask) <= 0) {
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int maskbits = atoi(maskstr);
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if (maskbits < 0 || maskbits > 32) {
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free(buf);
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return -4;
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}
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mask->s_addr = htonl(~0 << (32 - maskbits));
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}
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free(buf);
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return 0;
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}
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int get_sockaddr(char *buf, int size, struct sockaddr_in *addr)
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{
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return snprintf(buf, size, "%s:%d", inet_ntoa(addr->sin_addr), ntohs(addr->sin_port));
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}
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char * get_sockaddr_buf(struct sockaddr_in *addr)
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{
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static char ret[24];
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get_sockaddr(ret, sizeof(ret), addr);
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return ret;
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}
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int same_sockaddr(struct sockaddr_in *a, struct sockaddr_in *b)
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{
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return !((a->sin_family ^ b->sin_family) |
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(a->sin_addr.s_addr ^ b->sin_addr.s_addr) |
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(a->sin_port ^ b->sin_port));
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}
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