126 lines
2.7 KiB
C
126 lines
2.7 KiB
C
/*
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This file is part of actube.
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actube 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, either version 3 of the License, or
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(at your option) any later version.
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libcapwap 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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You should have received a copy of the GNU General Public License
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along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file
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* @brief implements sock_addrtostr
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*/
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/**
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* @addtogroup sock
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* @{
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*/
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#include <string.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#ifdef AF_LINK
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#include <net/if_dl.h>
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#endif
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#ifdef AF_PACKET
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#include <netpacket/packet.h>
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#endif
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#include "sock.h"
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/**
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* Convert a struct sockaddr int to a human readable string.
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* @param sa sockaddr to convert
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* @param s Destination buffer
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* @param maxlen Size of destination buffer
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* @param addport If true then the port number wil be added to the output
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*
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* Works only for sockaddrs of type AF_INET, AF_INET6, AF_PACKET, AF_LINK.
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*/
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char *sock_addrtostr(const struct sockaddr *sa, char *s, size_t maxlen, int addport)
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{
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char d[512];
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int port;
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switch (sa->sa_family) {
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case AF_INET:
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inet_ntop(AF_INET, &(((struct sockaddr_in *) sa)->sin_addr), d,
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maxlen);
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if (addport) {
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port = ((struct sockaddr_in *) sa)->sin_port;
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sprintf(s, "%s:%i", d, ntohs(port));
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} else
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sprintf(s, "%s", d);
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break;
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case AF_INET6:
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inet_ntop(AF_INET6, &(((struct sockaddr_in6 *) sa)->sin6_addr), d,
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maxlen);
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if (addport) {
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port = ((struct sockaddr_in6 *) sa)->sin6_port;
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sprintf(s, "[%s]:%i", d, ntohs(port));
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} else
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sprintf(s, "%s", d);
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break;
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#ifdef AF_LINK
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case AF_LINK:
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{
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struct sockaddr_dl *sl = (struct sockaddr_dl *) sa;
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sock_hwaddrtostr(((uint8_t *) sl->sdl_data) + sl->sdl_nlen,
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sl->sdl_alen, s, ":");
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}
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break;
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#endif /* AF_LINLK */
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#ifdef AF_PACKET
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case AF_PACKET:
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{
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int i;
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char *sp = s;
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struct sockaddr_ll *sl = (struct sockaddr_ll *) sa;
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for (i = 0; i < sl->sll_halen - 1; i++) {
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sprintf(sp, "%02X:", sl->sll_addr[i]);
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sp += 3;
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}
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sprintf(sp, "%02X", sl->sll_addr[i]);
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}
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break;
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#endif /* AF_PACKET */
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case AF_UNIX:
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{
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struct sockaddr_un *addr = (struct sockaddr_un *) sa;
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snprintf(s, maxlen, "%s", addr->sun_path);
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}
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break;
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default:
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snprintf(s,maxlen, "Unknown AF: %d", sa->sa_family);
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return NULL;
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}
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return s;
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}
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/**
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* @}
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*/
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