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--- Libnet-1.0.2a.orig/acinclude.m4 2000-12-12 19:31:54.000000000 +0100
+++ Libnet-1.0.2a/acinclude.m4 2009-06-12 21:48:27.000000000 +0200
@@ -30,65 +30,43 @@ AC_DEFUN(AC_LIBNET_CHECK_PF_PACKET,
*)
cat > pf_packet-test.c << EOF
-#include <net/if.h>
-#if (__GLIBC__)
-#include <netinet/if_ether.h>
-#include <net/if_arp.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <features.h> /* for the glibc version number */
+#if __GLIBC__ >= 2 && __GLIBC_MINOR >= 1
+#include <netpacket/packet.h>
+#include <net/ethernet.h> /* the L2 protocols */
#else
-#include <linux/if_arp.h>
-#include <linux/if_ether.h>
+#include <asm/types.h>
+#include <linux/if_packet.h>
+#include <linux/if_ether.h> /* The L2 protocols */
#endif
-#if (PF_PACKET)
+
#ifndef SOL_PACKET
#define SOL_PACKET 263
#endif /* SOL_PACKET */
-#include <linux/if_packet.h>
-#endif
-#include "./include/libnet.h"
int
main()
{
-#if (PF_PACKET)
int fd;
- struct sockaddr_ll sa;
- struct ifreq ifr;
- struct packet_mreq mr;
- char *device ="lo";
fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
if (fd == -1)
{
- printf("choked");
- exit (EXIT_FAILURE);
- }
-
- memset(&sa, 0, sizeof(sa));
- strcpy(ifr.ifr_name, device);
- if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0)
- {
- printf("choked");
- exit (EXIT_FAILURE);
- }
- sa.sll_family = AF_PACKET;
- sa.sll_ifindex = ifr.ifr_ifindex;
- sa.sll_protocol = htons(ETH_P_ALL);
-
- memset(&mr, 0, sizeof (mr));
- mr.mr_ifindex = sa.sll_ifindex;
- mr.mr_type = PACKET_MR_ALLMULTI;
-
- if (setsockopt(fd, SOL_PACKET, PACKET_ADD_MEMBERSHIP, (char *)&mr,
- sizeof (mr)) < 0)
- {
- printf("choked\n");
+ if (errno == EPERM)
+ {
+ /* user's UID != 0 */
+ printf("probably");
+ exit (EXIT_FAILURE);
+ }
+ printf("no");
exit (EXIT_FAILURE);
}
- /* yay. we made it and it workz! */
printf("yes");
-#else /* PF_PACKET */
- printf("no");
-#endif
exit (EXIT_SUCCESS);
}
EOF
@@ -104,16 +82,21 @@ EOF
if test $ac_libnet_have_pf_packet = choked; then
AC_MSG_RESULT(test program choked... assuming no)
elif test $ac_libnet_have_pf_packet = yes; then
- AC_DEFINE(HAVE_PF_PACKET)
+ AC_MSG_RESULT(yes)
LIBNET_CONFIG_DEFINES="$LIBNET_CONFIG_DEFINES -DHAVE_PF_PACKET"
+ elif test $ac_libnet_have_pf_packet = probably; then
+ AC_MSG_RESULT(test program got EPERM... assuming yes)
+ elif test $ac_libnet_have_pf_packet = no; then
+ AC_MSG_RESULT(no)
fi
- if test $ac_libnet_have_pf_packet != choked; then
- AC_MSG_RESULT($ac_libnet_have_pf_packet)
- fi
rm -f pf_packet-test* core core.pf_packet-test
;;
esac])
+
+ if test $ac_libnet_have_pf_packet = yes -o $ac_libnet_have_pf_packet = probably; then
+ AC_DEFINE(HAVE_PF_PACKET)
+ fi
])
dnl
@@ -279,6 +262,8 @@ dnl
AC_DEFUN(AC_LIBNET_ENDIAN_CHECK,
[AC_MSG_CHECKING(machine endianess)
+ AC_CACHE_VAL(ac_cv_libnet_endianess,
+ [
cat > conftest.c << EOF
# include <stdio.h>
@@ -332,6 +317,7 @@ dnl failed to compile for some reason
fi
rm -f conftest* core core.conftest
+ ])
AC_MSG_RESULT($ac_cv_libnet_endianess)
if test $ac_cv_libnet_endianess = big ; then
|
