my_gethwaddr() for linux/freebsd

UUID() function


BitKeeper/etc/ignore:
  Added mysys/test_gethwaddr to the ignore list
include/my_sys.h:
  my_gethwaddr()
mysys/Makefile.am:
  my_gethwaddr
sql/item_create.cc:
  UUID() function
sql/item_create.h:
  UUID() function
sql/item_strfunc.cc:
  UUID() function
sql/item_strfunc.h:
  UUID() function
sql/lex.h:
  UUID() function
sql/mysql_priv.h:
  UUID() function
sql/mysqld.cc:
  UUID() function
sql/sql_class.cc:
  cleanup

2 files changed, 136 insertions, 1 deletions

diff --git a/mysys/Makefile.am b/mysys/Makefile.am
index eb6d21c360a..77b17d28ba3 100644
--- a/mysys/Makefile.am
+++ b/mysys/Makefile.am
@@ -39,7 +39,7 @@ libmysys_a_SOURCES =	my_init.c my_getwd.c mf_getdate.c \
 			mf_format.c mf_same.c mf_dirname.c mf_fn_ext.c \
 			my_symlink.c my_symlink2.c \
 			mf_pack.c mf_unixpath.c mf_strip.c \
-			mf_wcomp.c mf_wfile.c \
+			mf_wcomp.c mf_wfile.c my_gethwaddr.c \
 			mf_qsort.c mf_qsort2.c mf_sort.c \
 			ptr_cmp.c mf_radix.c queues.c \
 			tree.c list.c hash.c array.c string.c typelib.c \
@@ -110,5 +110,10 @@ charset2html$(EXEEXT): charset2html.c $(LIBRARIES)
 testhash$(EXEEXT): testhash.c $(LIBRARIES)
 	$(LINK) $(FLAGS) -DMAIN $(srcdir)/testhash.c $(LDADD) $(LIBS)
 
+test_gethwaddr$(EXEEXT): my_gethwaddr.c $(LIBRARIES)
+	$(CP) $(srcdir)/my_gethwaddr.c ./test_gethwaddr.c
+	$(LINK) $(FLAGS) -DMAIN  ./test_gethwaddr.c $(LDADD) $(LIBS)
+	$(RM) -f ./test_gethwaddr.c
+
 # Don't update the files from bitkeeper
 %::SCCS/s.%
diff --git a/mysys/my_gethwaddr.c b/mysys/my_gethwaddr.c
new file mode 100644
index 00000000000..72f1cb975c4
--- /dev/null
+++ b/mysys/my_gethwaddr.c
@@ -0,0 +1,130 @@
+/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+
+   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+/* get hardware address for an interface */
+/* if there are many available, any non-zero one can be used */
+
+#include "mysys_priv.h"
+#include <m_string.h>
+
+#ifndef MAIN
+static my_bool memcpy_and_test(uchar *to, uchar *from, uint len)
+{
+  uint i, res=1;
+
+  for (i=0; i < len; i++)
+    if ((*to++= *from++))
+      res=0;
+  return res;
+}
+
+#ifdef __FreeBSD__
+
+#include <net/ethernet.h>
+#include <sys/sysctl.h>
+#include <net/route.h>
+#include <net/if.h>
+#include <net/if_dl.h>
+
+my_bool my_gethwaddr(uchar *to)
+{
+  size_t len;
+  uchar  *buf, *next, *end, *addr;
+  struct if_msghdr *ifm;
+  struct sockaddr_dl *sdl;
+  int i, res=1, mib[6]={CTL_NET, AF_ROUTE, 0, AF_LINK, NET_RT_IFLIST, 0};
+
+  if (sysctl(mib, 6, NULL, &len, NULL, 0) == -1)
+    goto err;
+  if (!(buf = alloca(len)))
+    goto err;
+  if (sysctl(mib, 6, buf, &len, NULL, 0) < 0)
+    goto err;
+
+  end = buf + len;
+
+  for (next = buf ; res && next < end ; next += ifm->ifm_msglen)
+  {
+    ifm = (struct if_msghdr *)next;
+    if (ifm->ifm_type == RTM_IFINFO)
+    {
+      sdl = (struct sockaddr_dl *)(ifm + 1);
+      addr=LLADDR(sdl);
+      res=memcpy_and_test(to, addr, ETHER_ADDR_LEN);
+    }
+  }
+
+err:
+  return res;
+}
+
+#elif __linux__
+
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <net/ethernet.h>
+
+my_bool my_gethwaddr(uchar *to)
+{
+  int fd, res=1;
+  struct ifreq ifr;
+
+  fd = socket(AF_INET, SOCK_DGRAM, 0);
+  if (fd < 0)
+    goto err;
+
+  bzero(&ifr, sizeof(ifr));
+  strnmov(ifr.ifr_name, "eth0", sizeof(ifr.ifr_name) - 1);
+
+  do {
+    if (ioctl(fd, SIOCGIFHWADDR, &ifr) >= 0)
+      res=memcpy_and_test(to, (uchar *)&ifr.ifr_hwaddr.sa_data, ETHER_ADDR_LEN);
+  } while (res && (errno == 0 || errno == ENODEV) && ifr.ifr_name[3]++ < '6');
+
+  close(fd);
+err:
+  return res;
+}
+
+#else
+/* just fail */
+my_bool my_gethwaddr(uchar *to __attribute__((unused)))
+{
+  return 1;
+}
+#endif
+
+#else MAIN
+int main(int argc __attribute__((unused)),char **argv)
+{
+  uchar mac[6];
+  uint i;
+  MY_INIT(argv[0]);
+  if (my_gethwaddr(mac))
+  {
+    printf("my_gethwaddr failed with errno %d\n", errno);
+    exit(1);
+  }
+  for (i=0; i < sizeof(mac); i++)
+  {
+    if (i) printf(":");
+    printf("%02x", mac[i]);
+  }
+  printf("\n");
+  return 0;
+}
+#endif
+