mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 20:42:30 +01:00
04c23808a8
Simple optimzations and cleanups Removed compiler warnings and fixed portability issues Added client functions 'mysql_embedded()' to allow client to check if we are using embedded server Fixes for purify
130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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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; either version 2 of the License, or
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(at your option) any later version.
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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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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 Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* get hardware address for an interface */
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/* if there are many available, any non-zero one can be used */
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#include "mysys_priv.h"
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#include <m_string.h>
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#ifndef MAIN
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static my_bool memcpy_and_test(uchar *to, uchar *from, uint len)
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{
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uint i, res=1;
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for (i=0; i < len; i++)
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if ((*to++= *from++))
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res=0;
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return res;
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}
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#ifdef __FreeBSD__
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#include <net/ethernet.h>
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#include <sys/sysctl.h>
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#include <net/route.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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my_bool my_gethwaddr(uchar *to)
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{
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size_t len;
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uchar *buf, *next, *end, *addr;
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struct if_msghdr *ifm;
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struct sockaddr_dl *sdl;
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int i, res=1, mib[6]={CTL_NET, AF_ROUTE, 0, AF_LINK, NET_RT_IFLIST, 0};
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if (sysctl(mib, 6, NULL, &len, NULL, 0) == -1)
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goto err;
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if (!(buf = alloca(len)))
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goto err;
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if (sysctl(mib, 6, buf, &len, NULL, 0) < 0)
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goto err;
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end = buf + len;
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for (next = buf ; res && next < end ; next += ifm->ifm_msglen)
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{
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ifm = (struct if_msghdr *)next;
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if (ifm->ifm_type == RTM_IFINFO)
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{
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sdl = (struct sockaddr_dl *)(ifm + 1);
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addr=LLADDR(sdl);
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res=memcpy_and_test(to, addr, ETHER_ADDR_LEN);
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}
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}
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err:
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return res;
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}
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#elif __linux__
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#include <net/if.h>
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#include <sys/ioctl.h>
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#include <net/ethernet.h>
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my_bool my_gethwaddr(uchar *to)
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{
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int fd, res=1;
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struct ifreq ifr;
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fd = socket(AF_INET, SOCK_DGRAM, 0);
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if (fd < 0)
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goto err;
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bzero(&ifr, sizeof(ifr));
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strnmov(ifr.ifr_name, "eth0", sizeof(ifr.ifr_name) - 1);
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do {
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if (ioctl(fd, SIOCGIFHWADDR, &ifr) >= 0)
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res=memcpy_and_test(to, (uchar *)&ifr.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
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} while (res && (errno == 0 || errno == ENODEV) && ifr.ifr_name[3]++ < '6');
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close(fd);
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err:
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return res;
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}
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#else
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/* just fail */
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my_bool my_gethwaddr(uchar *to __attribute__((unused)))
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{
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return 1;
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}
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#endif
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#else /* MAIN */
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int main(int argc __attribute__((unused)),char **argv)
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{
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uchar mac[6];
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uint i;
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MY_INIT(argv[0]);
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if (my_gethwaddr(mac))
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{
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printf("my_gethwaddr failed with errno %d\n", errno);
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exit(1);
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}
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for (i=0; i < sizeof(mac); i++)
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{
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if (i) printf(":");
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printf("%02x", mac[i]);
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}
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printf("\n");
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return 0;
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}
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#endif
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