446 lines
12 KiB
Plaintext
446 lines
12 KiB
Plaintext
dnl Check for how to set a socket to non-blocking state. There seems to exist
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dnl four known different ways, with the one used almost everywhere being POSIX
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dnl and XPG3, while the other different ways for different systems (old BSD,
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dnl Windows and Amiga).
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dnl
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dnl There are two known platforms (AIX 3.x and SunOS 4.1.x) where the
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dnl O_NONBLOCK define is found but does not work. This condition is attempted
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dnl to get caught in this script by using an excessive number of #ifdefs...
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dnl
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AC_DEFUN(CURL_CHECK_NONBLOCKING_SOCKET,
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[
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AC_MSG_CHECKING([non-blocking sockets style])
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AC_TRY_COMPILE([
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/* headers for O_NONBLOCK test */
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#include <sys/types.h>
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#include <unistd.h>
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#include <fcntl.h>
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],[
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/* try to compile O_NONBLOCK */
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#if defined(sun) || defined(__sun__) || defined(__SUNPRO_C) || defined(__SUNPRO_CC)
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# if defined(__SVR4) || defined(__srv4__)
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# define PLATFORM_SOLARIS
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# else
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# define PLATFORM_SUNOS4
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# endif
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#endif
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#if (defined(_AIX) || defined(__xlC__)) && !defined(_AIX4)
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# define PLATFORM_AIX_V3
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#endif
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#if defined(PLATFORM_SUNOS4) || defined(PLATFORM_AIX_V3)
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#error "O_NONBLOCK does not work on this platform"
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#endif
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int socket;
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int flags = fcntl(socket, F_SETFL, flags | O_NONBLOCK);
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],[
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dnl the O_NONBLOCK test was fine
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nonblock="O_NONBLOCK"
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AC_DEFINE(HAVE_O_NONBLOCK)
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],[
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dnl the code was bad, try a different program now, test 2
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AC_TRY_COMPILE([
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/* headers for FIONBIO test */
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#include <unistd.h>
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#include <stropts.h>
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],[
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/* FIONBIO source test */
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int flags = ioctl(socket, FIONBIO, &flags);
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],[
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dnl FIONBIO test was good
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nonblock="FIONBIO"
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AC_DEFINE(HAVE_FIONBIO)
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],[
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dnl FIONBIO test was also bad
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dnl the code was bad, try a different program now, test 3
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AC_TRY_COMPILE([
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/* headers for ioctlsocket test (cygwin?) */
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#include <windows.h>
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],[
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/* ioctlsocket source code */
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int flags = ioctlsocket(socket, FIONBIO, &flags);
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],[
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dnl ioctlsocket test was good
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nonblock="ioctlsocket"
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AC_DEFINE(HAVE_IOCTLSOCKET)
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],[
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dnl ioctlsocket didnt compile!
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AC_TRY_COMPILE([
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/* headers for IoctlSocket test (Amiga?) */
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#include <sys/ioctl.h>
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],[
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/* IoctlSocket source code */
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int flags = IoctlSocket(socket, FIONBIO, (long)1);
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],[
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dnl ioctlsocket test was good
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nonblock="IoctlSocket"
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AC_DEFINE(HAVE_IOCTLSOCKET_CASE)
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],[
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dnl ioctlsocket didnt compile!
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nonblock="nada"
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AC_DEFINE(HAVE_DISABLED_NONBLOCKING)
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])
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dnl end of forth test
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])
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dnl end of third test
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])
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dnl end of second test
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])
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dnl end of non-blocking try-compile test
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AC_MSG_RESULT($nonblock)
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if test "$nonblock" = "nada"; then
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AC_MSG_WARN([non-block sockets disabled])
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fi
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])
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dnl Check for socklen_t: historically on BSD it is an int, and in
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dnl POSIX 1g it is a type of its own, but some platforms use different
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dnl types for the argument to getsockopt, getpeername, etc. So we
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dnl have to test to find something that will work.
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AC_DEFUN([TYPE_SOCKLEN_T],
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[
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AC_CHECK_TYPE([socklen_t], ,[
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AC_MSG_CHECKING([for socklen_t equivalent])
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AC_CACHE_VAL([curl_cv_socklen_t_equiv],
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[
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# Systems have either "struct sockaddr *" or
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# "void *" as the second argument to getpeername
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curl_cv_socklen_t_equiv=
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for arg2 in "struct sockaddr" void; do
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for t in int size_t unsigned long "unsigned long"; do
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AC_TRY_COMPILE([
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#include <sys/types.h>
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#include <sys/socket.h>
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int getpeername (int, $arg2 *, $t *);
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],[
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$t len;
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getpeername(0,0,&len);
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],[
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curl_cv_socklen_t_equiv="$t"
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break
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])
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done
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done
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if test "x$curl_cv_socklen_t_equiv" = x; then
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AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
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fi
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])
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AC_MSG_RESULT($curl_cv_socklen_t_equiv)
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AC_DEFINE_UNQUOTED(socklen_t, $curl_cv_socklen_t_equiv,
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[type to use in place of socklen_t if not defined])],
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[#include <sys/types.h>
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#include <sys/socket.h>])
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])
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dnl Check for in_addr_t: it is used to receive the return code of inet_addr()
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dnl and a few other things. If not found, we set it to unsigned int, as even
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dnl 64-bit implementations use to set it to a 32-bit type.
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AC_DEFUN([TYPE_IN_ADDR_T],
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[
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AC_CHECK_TYPE([in_addr_t], ,[
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AC_MSG_CHECKING([for in_addr_t equivalent])
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AC_CACHE_VAL([curl_cv_in_addr_t_equiv],
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[
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# Systems have either "struct sockaddr *" or
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# "void *" as the second argument to getpeername
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curl_cv_in_addr_t_equiv=
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for t in int size_t unsigned long "unsigned long"; do
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AC_TRY_COMPILE([
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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],[
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$t data = inet_addr ("1.2.3.4");
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],[
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curl_cv_in_addr_t_equiv="$t"
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break
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])
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done
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if test "x$curl_cv_in_addr_t_equiv" = x; then
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AC_MSG_ERROR([Cannot find a type to use in place of in_addr_t])
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fi
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])
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AC_MSG_RESULT($curl_cv_in_addr_t_equiv)
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AC_DEFINE_UNQUOTED(in_addr_t, $curl_cv_in_addr_t_equiv,
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[type to use in place of in_addr_t if not defined])],
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[#include <sys/types.h>
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#include <sys/socket.h>,
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#include <arpa/inet.h>])
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])
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dnl ************************************************************
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dnl check for "localhost", if it doesn't exist, we can't do the
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dnl gethostbyname_r tests!
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dnl
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AC_DEFUN(CURL_CHECK_WORKING_RESOLVER,[
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AC_MSG_CHECKING([if "localhost" resolves])
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AC_TRY_RUN([
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#include <string.h>
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#include <sys/types.h>
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#include <netdb.h>
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int
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main () {
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struct hostent *h;
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h = gethostbyname("localhost");
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exit (h == NULL ? 1 : 0); }],[
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AC_MSG_RESULT(yes)],[
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AC_MSG_RESULT(no)
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AC_MSG_ERROR([can't figure out gethostbyname_r() since localhost doesn't resolve])
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]
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)
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])
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dnl ************************************************************
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dnl check for working getaddrinfo()
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dnl
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AC_DEFUN(CURL_CHECK_WORKING_GETADDRINFO,[
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AC_CACHE_CHECK(for working getaddrinfo, ac_cv_working_getaddrinfo,[
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AC_TRY_RUN( [
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#include <netdb.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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void main(void) {
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struct addrinfo hints, *ai;
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int error;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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error = getaddrinfo("127.0.0.1", "8080", &hints, &ai);
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if (error) {
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exit(1);
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}
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else {
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exit(0);
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}
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}
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],[
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ac_cv_working_getaddrinfo="yes"
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],[
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ac_cv_working_getaddrinfo="no"
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],[
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ac_cv_working_getaddrinfo="yes"
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])])
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if test "$ac_cv_working_getaddrinfo" = "yes"; then
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AC_DEFINE(HAVE_GETADDRINFO, 1, [Define if getaddrinfo exists and works])
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AC_DEFINE(ENABLE_IPV6, 1, [Define if you want to enable IPv6 support])
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IPV6_ENABLED=1
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AC_SUBST(IPV6_ENABLED)
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fi
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])
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AC_DEFUN(CURL_CHECK_LOCALTIME_R,
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[
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dnl check for a few thread-safe functions
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AC_CHECK_FUNCS(localtime_r,[
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AC_MSG_CHECKING(whether localtime_r is declared)
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AC_EGREP_CPP(localtime_r,[
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#include <time.h>],[
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AC_MSG_RESULT(yes)],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(whether localtime_r with -D_REENTRANT is declared)
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AC_EGREP_CPP(localtime_r,[
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#define _REENTRANT
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#include <time.h>],[
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AC_DEFINE(NEED_REENTRANT)
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AC_MSG_RESULT(yes)],
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AC_MSG_RESULT(no))])])
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])
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AC_DEFUN(CURL_CHECK_INET_NTOA_R,
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[
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dnl determine if function definition for inet_ntoa_r exists.
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AC_CHECK_FUNCS(inet_ntoa_r,[
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AC_MSG_CHECKING(whether inet_ntoa_r is declared)
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AC_EGREP_CPP(inet_ntoa_r,[
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#include <arpa/inet.h>],[
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AC_DEFINE(HAVE_INET_NTOA_R_DECL)
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AC_MSG_RESULT(yes)],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(whether inet_ntoa_r with -D_REENTRANT is declared)
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AC_EGREP_CPP(inet_ntoa_r,[
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#define _REENTRANT
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#include <arpa/inet.h>],[
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AC_DEFINE(HAVE_INET_NTOA_R_DECL)
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AC_DEFINE(NEED_REENTRANT)
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AC_MSG_RESULT(yes)],
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AC_MSG_RESULT(no))])])
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])
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AC_DEFUN(CURL_CHECK_GETHOSTBYADDR_R,
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[
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dnl check for number of arguments to gethostbyaddr_r. it might take
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dnl either 5, 7, or 8 arguments.
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AC_CHECK_FUNCS(gethostbyaddr_r,[
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AC_MSG_CHECKING(if gethostbyaddr_r takes 5 arguments)
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AC_TRY_COMPILE([
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#include <sys/types.h>
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#include <netdb.h>],[
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char * address;
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int length;
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int type;
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struct hostent h;
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struct hostent_data hdata;
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int rc;
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rc = gethostbyaddr_r(address, length, type, &h, &hdata);],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GETHOSTBYADDR_R_5)
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ac_cv_gethostbyaddr_args=5],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(if gethostbyaddr_r with -D_REENTRANT takes 5 arguments)
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AC_TRY_COMPILE([
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>],[
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char * address;
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int length;
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int type;
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struct hostent h;
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struct hostent_data hdata;
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int rc;
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rc = gethostbyaddr_r(address, length, type, &h, &hdata);],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GETHOSTBYADDR_R_5)
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AC_DEFINE(NEED_REENTRANT)
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ac_cv_gethostbyaddr_args=5],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(if gethostbyaddr_r takes 7 arguments)
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AC_TRY_COMPILE([
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#include <sys/types.h>
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#include <netdb.h>],[
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char * address;
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int length;
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int type;
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struct hostent h;
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char buffer[8192];
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int h_errnop;
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struct hostent * hp;
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hp = gethostbyaddr_r(address, length, type, &h,
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buffer, 8192, &h_errnop);],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GETHOSTBYADDR_R_7)
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ac_cv_gethostbyaddr_args=7],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(if gethostbyaddr_r takes 8 arguments)
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AC_TRY_COMPILE([
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#include <sys/types.h>
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#include <netdb.h>],[
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char * address;
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int length;
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int type;
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struct hostent h;
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char buffer[8192];
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int h_errnop;
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struct hostent * hp;
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int rc;
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rc = gethostbyaddr_r(address, length, type, &h,
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buffer, 8192, &hp, &h_errnop);],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GETHOSTBYADDR_R_8)
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ac_cv_gethostbyaddr_args=8],[
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AC_MSG_RESULT(no)
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have_missing_r_funcs="$have_missing_r_funcs gethostbyaddr_r"])])])])])
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])
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AC_DEFUN(CURL_CHECK_GETHOSTBYNAME_R,
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[
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dnl check for number of arguments to gethostbyname_r. it might take
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dnl either 3, 5, or 6 arguments.
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AC_CHECK_FUNCS(gethostbyname_r,[
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AC_MSG_CHECKING([if gethostbyname_r takes 3 arguments])
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AC_TRY_COMPILE([
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#include <string.h>
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#include <sys/types.h>
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#include <netdb.h>
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#undef NULL
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#define NULL (void *)0
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int
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gethostbyname_r(const char *, struct hostent *, struct hostent_data *);],[
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gethostbyname_r(NULL, NULL, NULL);],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_3)
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ac_cv_gethostbyname_args=3],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([if gethostbyname_r with -D_REENTRANT takes 3 arguments])
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AC_TRY_COMPILE([
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#define _REENTRANT
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#include <string.h>
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#include <sys/types.h>
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#include <netdb.h>
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#undef NULL
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#define NULL (void *)0
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int
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gethostbyname_r(const char *,struct hostent *, struct hostent_data *);],[
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gethostbyname_r(NULL, NULL, NULL);],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_3)
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AC_DEFINE(NEED_REENTRANT)
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ac_cv_gethostbyname_args=3],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([if gethostbyname_r takes 5 arguments])
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AC_TRY_COMPILE([
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#include <sys/types.h>
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#include <netdb.h>
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#undef NULL
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#define NULL (void *)0
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struct hostent *
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gethostbyname_r(const char *, struct hostent *, char *, int, int *);],[
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gethostbyname_r(NULL, NULL, NULL, 0, NULL);],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_5)
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ac_cv_gethostbyname_args=5],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([if gethostbyname_r takes 6 arguments])
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AC_TRY_COMPILE([
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#include <sys/types.h>
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#include <netdb.h>
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#undef NULL
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#define NULL (void *)0
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int
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gethostbyname_r(const char *, struct hostent *, char *, size_t,
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struct hostent **, int *);],[
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gethostbyname_r(NULL, NULL, NULL, 0, NULL, NULL);],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_6)
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ac_cv_gethostbyname_args=6],[
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AC_MSG_RESULT(no)
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have_missing_r_funcs="$have_missing_r_funcs gethostbyname_r"],
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[ac_cv_gethostbyname_args=0])],
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[ac_cv_gethostbyname_args=0])],
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[ac_cv_gethostbyname_args=0])],
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[ac_cv_gethostbyname_args=0])])
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if test "$ac_cv_func_gethostbyname_r" = "yes"; then
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if test "$ac_cv_gethostbyname_args" = "0"; then
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dnl there's a gethostbyname_r() function, but we don't know how
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dnl many arguments it wants!
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AC_MSG_ERROR([couldn't figure out how to use gethostbyname_r()])
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fi
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fi
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])
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