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34a6753f73
BPF_TIMEVAL BIOCSRTIMEOUT bug that affects OS X 10.6. If the size of the parameter to the BIOCSRTIMEOUT ioctl is sizeof(struct timeval) we assume the workaround is not needed (most platforms). If they are unequal, we assume that version 1.1.0 or later has a workaround.
85 lines
2.0 KiB
Plaintext
85 lines
2.0 KiB
Plaintext
dnl Type of 6th argument to recvfrom(). Usually int or socklen_t.
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AC_DEFUN([RECVFROM_ARG6_TYPE],
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[
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AC_LANG_PUSH(C++)
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AC_MSG_CHECKING([for type of 6th argument to recvfrom()])
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recvfrom6_t=
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for t in socklen_t int; do
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AC_TRY_COMPILE([
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h>],[
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$t arg;
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recvfrom (0, NULL, 0, 0, NULL, &arg);],[
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recvfrom6_t="$t"
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break])
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done
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if test "x$recvfrom6_t" = x; then
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AC_MSG_WARN([Cannot find type for 6th argument to recvfrom(). Using socklen_t ptr])
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recvfrom6_t="socklen_t"
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fi
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AC_MSG_RESULT($recvfrom6_t)
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AC_DEFINE_UNQUOTED(recvfrom6_t, $recvfrom6_t,
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[Type of 6th argument to recvfrom()])
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AC_LANG_POP(C++)
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])
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dnl Checks if the pcap version is suitable. The has to be at least version
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dnl 0.9.4. Mac OS X 10.6 has a bug in its BIOCSRTIMEOUT ioctl that is worked
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dnl around in libpcap 1.1.0 and later; but before that we must use our own copy.
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AC_DEFUN([PCAP_IS_SUITABLE],
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[
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AC_CHECK_HEADERS(sys/ioccom.h sys/time.h net/bpf.h)
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AC_MSG_CHECKING(if libpcap is suitable)
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AC_TRY_RUN([
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#include <stdio.h>
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extern char pcap_version[];
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int main() {
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int major, minor1, minor2;
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sscanf(pcap_version,"%d.%d.%d", &major, &minor1, &minor2);
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if (major > 0)
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exit(0);
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if (minor1 < 9)
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exit(1);
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if (minor2 < 4)
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exit(1);
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exit(0);
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}
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], [
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AC_TRY_RUN([
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#include <stdio.h>
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#ifdef HAVE_SYS_IOCCOM_H
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#include <sys/ioccom.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#ifdef HAVE_NET_BPF_H
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#include <net/bpf.h>
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#endif
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extern char pcap_version[];
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int main() {
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int major, minor;
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sscanf(pcap_version,"%d.%d", &major, &minor);
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if ((major == 1 && minor >= 1) || major > 1)
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return 0;
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#ifdef BIOCSRTIMEOUT
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#ifdef IOCPARM_LEN
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if (IOCPARM_LEN(BIOCSRTIMEOUT) != sizeof(struct timeval))
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return 1;
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#endif
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#endif
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return 0;
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}
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],
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[AC_MSG_RESULT(yes); $1],
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[AC_MSG_RESULT(no -- BPF_TIMEOUT BIOCSRTIMEOUT bug (64-bit OS X)); $2])
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],
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[AC_MSG_RESULT(no); $2],
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[AC_MSG_RESULT(cross-compiling -- assuming yes); $3])
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])
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])
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