summaryrefslogtreecommitdiff
path: root/build/apr_network.m4
diff options
context:
space:
mode:
Diffstat (limited to 'build/apr_network.m4')
-rw-r--r--build/apr_network.m4928
1 files changed, 928 insertions, 0 deletions
diff --git a/build/apr_network.m4 b/build/apr_network.m4
new file mode 100644
index 0000000..4d479a4
--- /dev/null
+++ b/build/apr_network.m4
@@ -0,0 +1,928 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements. See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License. You may obtain a copy of the License at
+dnl
+dnl http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl -----------------------------------------------------------------
+dnl apr_network.m4: APR's autoconf macros for testing network support
+dnl
+
+dnl
+dnl check for type in_addr
+dnl
+AC_DEFUN(APR_TYPE_IN_ADDR,[
+ AC_CACHE_CHECK(for type in_addr, ac_cv_type_in_addr,[
+ AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#endif
+],[
+ struct in_addr arg;
+ arg.s_addr = htonl(INADDR_ANY);
+], [ ac_cv_type_in_addr="yes"] , [
+ac_cv_type_in_addr="no"])
+])
+])
+
+dnl
+dnl check for working getaddrinfo()
+dnl
+dnl Note that if the system doesn't have gai_strerror(), we
+dnl can't use getaddrinfo() because we can't get strings
+dnl describing the error codes.
+dnl
+AC_DEFUN([APR_CHECK_WORKING_GETADDRINFO], [
+ AC_CACHE_CHECK(for working getaddrinfo, ac_cv_working_getaddrinfo,[
+ AC_TRY_RUN( [
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+void main(void) {
+ struct addrinfo hints, *ai;
+ int error;
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+ error = getaddrinfo("127.0.0.1", NULL, &hints, &ai);
+ if (error) {
+ exit(1);
+ }
+ if (ai->ai_addr->sa_family != AF_INET) {
+ exit(1);
+ }
+ exit(0);
+}
+],[
+ ac_cv_working_getaddrinfo="yes"
+],[
+ ac_cv_working_getaddrinfo="no"
+],[
+ ac_cv_working_getaddrinfo="yes"
+])])
+if test "$ac_cv_working_getaddrinfo" = "yes"; then
+ if test "$ac_cv_func_gai_strerror" != "yes"; then
+ ac_cv_working_getaddrinfo="no"
+ else
+ AC_DEFINE(HAVE_GETADDRINFO, 1, [Define if getaddrinfo exists and works well enough for APR])
+ fi
+fi
+])
+
+dnl Check whether the AI_ADDRCONFIG flag can be used with getaddrinfo
+AC_DEFUN([APR_CHECK_GETADDRINFO_ADDRCONFIG], [
+ AC_CACHE_CHECK(for working AI_ADDRCONFIG, apr_cv_gai_addrconfig, [
+ AC_TRY_RUN([
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+int main(int argc, char **argv) {
+ struct addrinfo hints, *ai;
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_flags = AI_ADDRCONFIG;
+ return getaddrinfo("localhost", NULL, &hints, &ai) != 0;
+}], [apr_cv_gai_addrconfig=yes],
+ [apr_cv_gai_addrconfig=no],
+ [apr_cv_gai_addrconfig=no])])
+
+if test $apr_cv_gai_addrconfig = yes; then
+ AC_DEFINE(HAVE_GAI_ADDRCONFIG, 1, [Define if getaddrinfo accepts the AI_ADDRCONFIG flag])
+fi
+])
+
+dnl
+dnl check for working getnameinfo()
+dnl
+AC_DEFUN([APR_CHECK_WORKING_GETNAMEINFO], [
+ AC_CACHE_CHECK(for working getnameinfo, ac_cv_working_getnameinfo,[
+ AC_TRY_RUN( [
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
+void main(void) {
+ struct sockaddr_in sa;
+ char hbuf[256];
+ int error;
+
+ sa.sin_family = AF_INET;
+ sa.sin_port = 0;
+ sa.sin_addr.s_addr = inet_addr("127.0.0.1");
+#ifdef SIN6_LEN
+ sa.sin_len = sizeof(sa);
+#endif
+
+ error = getnameinfo((const struct sockaddr *)&sa, sizeof(sa),
+ hbuf, 256, NULL, 0,
+ NI_NUMERICHOST);
+ if (error) {
+ exit(1);
+ } else {
+ exit(0);
+ }
+}
+],[
+ ac_cv_working_getnameinfo="yes"
+],[
+ ac_cv_working_getnameinfo="no"
+],[
+ ac_cv_working_getnameinfo="yes"
+])])
+if test "$ac_cv_working_getnameinfo" = "yes"; then
+ AC_DEFINE(HAVE_GETNAMEINFO, 1, [Define if getnameinfo exists])
+fi
+])
+
+dnl
+dnl check for negative error codes for getaddrinfo()
+dnl
+AC_DEFUN([APR_CHECK_NEGATIVE_EAI], [
+ AC_CACHE_CHECK(for negative error codes for getaddrinfo, ac_cv_negative_eai,[
+ AC_TRY_RUN( [
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+void main(void) {
+ if (EAI_ADDRFAMILY < 0) {
+ exit(0);
+ }
+ exit(1);
+}
+],[
+ ac_cv_negative_eai="yes"
+],[
+ ac_cv_negative_eai="no"
+],[
+ ac_cv_negative_eai="no"
+])])
+if test "$ac_cv_negative_eai" = "yes"; then
+ AC_DEFINE(NEGATIVE_EAI, 1, [Define if EAI_ error codes from getaddrinfo are negative])
+fi
+])
+
+dnl
+dnl Checks the definition of gethostbyname_r and gethostbyaddr_r
+dnl which are different for glibc, solaris and assorted other operating
+dnl systems
+dnl
+dnl Note that this test is executed too early to see if we have all of
+dnl the headers.
+AC_DEFUN([APR_CHECK_GETHOSTBYNAME_R_STYLE], [
+
+dnl Try and compile a glibc2 gethostbyname_r piece of code, and set the
+dnl style of the routines to glibc2 on success
+AC_CACHE_CHECK([style of gethostbyname_r routine], ac_cv_gethostbyname_r_style,
+APR_TRY_COMPILE_NO_WARNING([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+],[
+int tmp = gethostbyname_r((const char *) 0, (struct hostent *) 0,
+ (char *) 0, 0, (struct hostent **) 0, &tmp);
+/* use tmp to suppress the warning */
+tmp=0;
+], ac_cv_gethostbyname_r_style=glibc2, ac_cv_gethostbyname_r_style=none))
+
+if test "$ac_cv_gethostbyname_r_style" = "glibc2"; then
+ AC_DEFINE(GETHOSTBYNAME_R_GLIBC2, 1, [Define if gethostbyname_r has the glibc style])
+fi
+
+AC_CACHE_CHECK([3rd argument to the gethostbyname_r routines], ac_cv_gethostbyname_r_arg,
+APR_TRY_COMPILE_NO_WARNING([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+],[
+int tmp = gethostbyname_r((const char *) 0, (struct hostent *) 0,
+ (struct hostent_data *) 0);
+/* use tmp to suppress the warning */
+tmp=0;
+], ac_cv_gethostbyname_r_arg=hostent_data, ac_cv_gethostbyname_r_arg=char))
+
+if test "$ac_cv_gethostbyname_r_arg" = "hostent_data"; then
+ AC_DEFINE(GETHOSTBYNAME_R_HOSTENT_DATA, 1, [Define if gethostbyname_r has the hostent_data for the third argument])
+fi
+])
+
+dnl
+dnl Checks the definition of getservbyname_r
+dnl which are different for glibc, solaris and assorted other operating
+dnl systems
+dnl
+dnl Note that this test is executed too early to see if we have all of
+dnl the headers.
+AC_DEFUN([APR_CHECK_GETSERVBYNAME_R_STYLE], [
+
+dnl Try and compile a glibc2 getservbyname_r piece of code, and set the
+dnl style of the routines to glibc2 on success
+AC_CACHE_CHECK([style of getservbyname_r routine], ac_cv_getservbyname_r_style, [
+APR_TRY_COMPILE_NO_WARNING([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+],[
+int tmp = getservbyname_r((const char *) 0, (const char *) 0,
+ (struct servent *) 0, (char *) 0, 0,
+ (struct servent **) 0);
+/* use tmp to suppress the warning */
+tmp=0;
+], ac_cv_getservbyname_r_style=glibc2, ac_cv_getservbyname_r_style=none)
+
+if test "$ac_cv_getservbyname_r_style" = "none"; then
+ dnl Try and compile a Solaris getservbyname_r piece of code, and set the
+ dnl style of the routines to solaris on success
+ APR_TRY_COMPILE_NO_WARNING([
+ #ifdef HAVE_SYS_TYPES_H
+ #include <sys/types.h>
+ #endif
+ #ifdef HAVE_NETINET_IN_H
+ #include <netinet/in.h>
+ #endif
+ #ifdef HAVE_ARPA_INET_H
+ #include <arpa/inet.h>
+ #endif
+ #ifdef HAVE_NETDB_H
+ #include <netdb.h>
+ #endif
+ #ifdef HAVE_STDLIB_H
+ #include <stdlib.h>
+ #endif
+ ],[
+ struct servent *tmp = getservbyname_r((const char *) 0, (const char *) 0,
+ (struct servent *) 0, (char *) 0, 0);
+ /* use tmp to suppress the warning */
+ tmp=NULL;
+ ], ac_cv_getservbyname_r_style=solaris, ac_cv_getservbyname_r_style=none)
+fi
+
+if test "$ac_cv_getservbyname_r_style" = "none"; then
+ dnl Try and compile a OSF/1 getservbyname_r piece of code, and set the
+ dnl style of the routines to osf1 on success
+ APR_TRY_COMPILE_NO_WARNING([
+ #ifdef HAVE_SYS_TYPES_H
+ #include <sys/types.h>
+ #endif
+ #ifdef HAVE_NETINET_IN_H
+ #include <netinet/in.h>
+ #endif
+ #ifdef HAVE_ARPA_INET_H
+ #include <arpa/inet.h>
+ #endif
+ #ifdef HAVE_NETDB_H
+ #include <netdb.h>
+ #endif
+ #ifdef HAVE_STDLIB_H
+ #include <stdlib.h>
+ #endif
+ ],[
+ int tmp = getservbyname_r((const char *) 0, (const char *) 0,
+ (struct servent *) 0, (struct servent_data *) 0);
+ /* use tmp to suppress the warning */
+ tmp=0;
+ ], ac_cv_getservbyname_r_style=osf1, ac_cv_getservbyname_r_style=none)
+fi
+])
+
+if test "$ac_cv_getservbyname_r_style" = "glibc2"; then
+ AC_DEFINE(GETSERVBYNAME_R_GLIBC2, 1, [Define if getservbyname_r has the glibc style])
+elif test "$ac_cv_getservbyname_r_style" = "solaris"; then
+ AC_DEFINE(GETSERVBYNAME_R_SOLARIS, 1, [Define if getservbyname_r has the Solaris style])
+elif test "$ac_cv_getservbyname_r_style" = "osf1"; then
+ AC_DEFINE(GETSERVBYNAME_R_OSF1, 1, [Define if getservbyname_r has the OSF/1 style])
+fi
+])
+
+dnl
+dnl see if TCP_NODELAY setting is inherited from listening sockets
+dnl
+AC_DEFUN([APR_CHECK_TCP_NODELAY_INHERITED], [
+ AC_CACHE_CHECK(if TCP_NODELAY setting is inherited from listening sockets, ac_cv_tcp_nodelay_inherited,[
+ AC_TRY_RUN( [
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
+#ifndef HAVE_SOCKLEN_T
+typedef int socklen_t;
+#endif
+int main(void) {
+ int listen_s, connected_s, client_s;
+ int listen_port, rc;
+ struct sockaddr_in sa;
+ socklen_t sa_len;
+ socklen_t option_len;
+ int option;
+
+ listen_s = socket(AF_INET, SOCK_STREAM, 0);
+ if (listen_s < 0) {
+ perror("socket");
+ exit(1);
+ }
+ option = 1;
+ rc = setsockopt(listen_s, IPPROTO_TCP, TCP_NODELAY, &option, sizeof option);
+ if (rc < 0) {
+ perror("setsockopt TCP_NODELAY");
+ exit(1);
+ }
+ memset(&sa, 0, sizeof sa);
+ sa.sin_family = AF_INET;
+#ifdef BEOS
+ sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+#endif
+ /* leave port 0 to get ephemeral */
+ rc = bind(listen_s, (struct sockaddr *)&sa, sizeof sa);
+ if (rc < 0) {
+ perror("bind for ephemeral port");
+ exit(1);
+ }
+ /* find ephemeral port */
+ sa_len = sizeof(sa);
+ rc = getsockname(listen_s, (struct sockaddr *)&sa, &sa_len);
+ if (rc < 0) {
+ perror("getsockname");
+ exit(1);
+ }
+ listen_port = sa.sin_port;
+ rc = listen(listen_s, 5);
+ if (rc < 0) {
+ perror("listen");
+ exit(1);
+ }
+ client_s = socket(AF_INET, SOCK_STREAM, 0);
+ if (client_s < 0) {
+ perror("socket");
+ exit(1);
+ }
+ memset(&sa, 0, sizeof sa);
+ sa.sin_family = AF_INET;
+ sa.sin_port = listen_port;
+#ifdef BEOS
+ sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+#endif
+ /* leave sin_addr all zeros to use loopback */
+ rc = connect(client_s, (struct sockaddr *)&sa, sizeof sa);
+ if (rc < 0) {
+ perror("connect");
+ exit(1);
+ }
+ sa_len = sizeof sa;
+ connected_s = accept(listen_s, (struct sockaddr *)&sa, &sa_len);
+ if (connected_s < 0) {
+ perror("accept");
+ exit(1);
+ }
+ option_len = sizeof option;
+ rc = getsockopt(connected_s, IPPROTO_TCP, TCP_NODELAY, &option, &option_len);
+ if (rc < 0) {
+ perror("getsockopt");
+ exit(1);
+ }
+ if (!option) {
+ fprintf(stderr, "TCP_NODELAY is not set in the child.\n");
+ exit(1);
+ }
+ return 0;
+}
+],[
+ ac_cv_tcp_nodelay_inherited="yes"
+],[
+ ac_cv_tcp_nodelay_inherited="no"
+],[
+ ac_cv_tcp_nodelay_inherited="yes"
+])])
+if test "$ac_cv_tcp_nodelay_inherited" = "yes"; then
+ tcp_nodelay_inherited=1
+else
+ tcp_nodelay_inherited=0
+fi
+])
+
+dnl
+dnl Determine whether TCP_NODELAY and TCP_CORK can both be set
+dnl on a TCP socket.
+dnl
+AC_DEFUN([APR_CHECK_TCP_NODELAY_WITH_CORK], [
+AC_CACHE_CHECK([whether TCP_NODELAY and TCP_CORK can both be enabled],
+[apr_cv_tcp_nodelay_with_cork],
+[AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+]], [[
+ int fd, flag, rc;
+
+ fd = socket(AF_INET, SOCK_STREAM, 0);
+ if (fd < 0) {
+ exit(1);
+ }
+
+ flag = 1;
+ rc = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof flag);
+ if (rc < 0) {
+ perror("setsockopt TCP_NODELAY");
+ exit(2);
+ }
+
+ flag = 1;
+ rc = setsockopt(fd, IPPROTO_TCP, TCP_CORK, &flag, sizeof flag);
+ if (rc < 0) {
+ perror("setsockopt TCP_CORK");
+ exit(3);
+ }
+
+ exit(0);
+]])], [apr_cv_tcp_nodelay_with_cork=yes], [apr_cv_tcp_nodelay_with_cork=no])])
+
+if test "$apr_cv_tcp_nodelay_with_cork" = "yes"; then
+ AC_DEFINE([HAVE_TCP_NODELAY_WITH_CORK], 1,
+ [Define if TCP_NODELAY and TCP_CORK can be enabled at the same time])
+fi
+])
+
+
+dnl
+dnl see if O_NONBLOCK setting is inherited from listening sockets
+dnl
+AC_DEFUN([APR_CHECK_O_NONBLOCK_INHERITED], [
+ AC_CACHE_CHECK(if O_NONBLOCK setting is inherited from listening sockets, ac_cv_o_nonblock_inherited,[
+ AC_TRY_RUN( [
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
+#ifndef HAVE_SOCKLEN_T
+typedef int socklen_t;
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+int main(void) {
+ int listen_s, connected_s, client_s;
+ int listen_port, rc;
+ struct sockaddr_in sa;
+ socklen_t sa_len;
+
+ listen_s = socket(AF_INET, SOCK_STREAM, 0);
+ if (listen_s < 0) {
+ perror("socket");
+ exit(1);
+ }
+ memset(&sa, 0, sizeof sa);
+ sa.sin_family = AF_INET;
+#ifdef BEOS
+ sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+#endif
+ /* leave port 0 to get ephemeral */
+ rc = bind(listen_s, (struct sockaddr *)&sa, sizeof sa);
+ if (rc < 0) {
+ perror("bind for ephemeral port");
+ exit(1);
+ }
+ /* find ephemeral port */
+ sa_len = sizeof(sa);
+ rc = getsockname(listen_s, (struct sockaddr *)&sa, &sa_len);
+ if (rc < 0) {
+ perror("getsockname");
+ exit(1);
+ }
+ listen_port = sa.sin_port;
+ rc = listen(listen_s, 5);
+ if (rc < 0) {
+ perror("listen");
+ exit(1);
+ }
+ rc = fcntl(listen_s, F_SETFL, O_NONBLOCK);
+ if (rc < 0) {
+ perror("fcntl(F_SETFL)");
+ exit(1);
+ }
+ client_s = socket(AF_INET, SOCK_STREAM, 0);
+ if (client_s < 0) {
+ perror("socket");
+ exit(1);
+ }
+ memset(&sa, 0, sizeof sa);
+ sa.sin_family = AF_INET;
+ sa.sin_port = listen_port;
+#ifdef BEOS
+ sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+#endif
+ /* leave sin_addr all zeros to use loopback */
+ rc = connect(client_s, (struct sockaddr *)&sa, sizeof sa);
+ if (rc < 0) {
+ perror("connect");
+ exit(1);
+ }
+ sa_len = sizeof sa;
+ connected_s = accept(listen_s, (struct sockaddr *)&sa, &sa_len);
+ if (connected_s < 0) {
+ perror("accept");
+ exit(1);
+ }
+ rc = fcntl(connected_s, F_GETFL, 0);
+ if (rc < 0) {
+ perror("fcntl(F_GETFL)");
+ exit(1);
+ }
+ if (!(rc & O_NONBLOCK)) {
+ fprintf(stderr, "O_NONBLOCK is not set in the child.\n");
+ exit(1);
+ }
+ return 0;
+}
+],[
+ ac_cv_o_nonblock_inherited="yes"
+],[
+ ac_cv_o_nonblock_inherited="no"
+],[
+ ac_cv_o_nonblock_inherited="yes"
+])])
+if test "$ac_cv_o_nonblock_inherited" = "yes"; then
+ o_nonblock_inherited=1
+else
+ o_nonblock_inherited=0
+fi
+])
+
+dnl
+dnl check for socklen_t, fall back to unsigned int
+dnl
+AC_DEFUN([APR_CHECK_SOCKLEN_T], [
+AC_CACHE_CHECK(for socklen_t, ac_cv_socklen_t,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+],[
+socklen_t foo = (socklen_t) 0;
+],[
+ ac_cv_socklen_t=yes
+],[
+ ac_cv_socklen_t=no
+])
+])
+
+if test "$ac_cv_socklen_t" = "yes"; then
+ AC_DEFINE(HAVE_SOCKLEN_T, 1, [Whether you have socklen_t])
+fi
+])
+
+
+AC_DEFUN([APR_CHECK_INET_ADDR], [
+AC_CACHE_CHECK(for inet_addr, ac_cv_func_inet_addr,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+],[
+inet_addr("127.0.0.1");
+],[
+ ac_cv_func_inet_addr=yes
+],[
+ ac_cv_func_inet_addr=no
+])
+])
+
+if test "$ac_cv_func_inet_addr" = "yes"; then
+ have_inet_addr=1
+else
+ have_inet_addr=0
+fi
+])
+
+
+AC_DEFUN([APR_CHECK_INET_NETWORK], [
+AC_CACHE_CHECK(for inet_network, ac_cv_func_inet_network,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+],[
+inet_network("127.0.0.1");
+],[
+ ac_cv_func_inet_network=yes
+],[
+ ac_cv_func_inet_network=no
+])
+])
+
+if test "$ac_cv_func_inet_network" = "yes"; then
+ have_inet_network=1
+else
+ have_inet_network=0
+fi
+])
+
+dnl Check for presence of struct sockaddr_storage.
+AC_DEFUN([APR_CHECK_SOCKADDR_STORAGE], [
+AC_CACHE_CHECK(for sockaddr_storage, apr_cv_define_sockaddr_storage,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+],[struct sockaddr_storage sa;],
+[apr_cv_define_sockaddr_storage=yes],
+[apr_cv_define_sockaddr_storage=no])])
+
+if test "$apr_cv_define_sockaddr_storage" = "yes"; then
+ have_sa_storage=1
+else
+ have_sa_storage=0
+fi
+AC_SUBST(have_sa_storage)
+])
+
+dnl Check for presence of struct sockaddr_in6.
+AC_DEFUN([APR_CHECK_SOCKADDR_IN6], [
+AC_CACHE_CHECK(for sockaddr_in6, ac_cv_define_sockaddr_in6,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+],[
+struct sockaddr_in6 sa;
+],[
+ ac_cv_define_sockaddr_in6=yes
+],[
+ ac_cv_define_sockaddr_in6=no
+])
+])
+
+if test "$ac_cv_define_sockaddr_in6" = "yes"; then
+ have_sockaddr_in6=1
+else
+ have_sockaddr_in6=0
+fi
+])
+
+dnl
+dnl APR_H_ERRNO_COMPILE_CHECK
+dnl
+AC_DEFUN([APR_H_ERRNO_COMPILE_CHECK], [
+ if test x$1 != x; then
+ CPPFLAGS="-D$1 $CPPFLAGS"
+ fi
+ AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+],[
+int h_e = h_errno;
+],[
+ if test x$1 != x; then
+ ac_cv_h_errno_cppflags="$1"
+ else
+ ac_cv_h_errno_cppflags=yes
+ fi
+],[
+ ac_cv_h_errno_cppflags=no
+])])
+
+
+dnl
+dnl APR_CHECK_SCTP
+dnl
+dnl check for presence of SCTP protocol support
+dnl
+AC_DEFUN([APR_CHECK_SCTP],
+[
+ AC_CACHE_CHECK([whether SCTP is supported], [apr_cv_sctp], [
+ AC_TRY_RUN([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_SCTP_H
+#include <netinet/sctp.h>
+#endif
+#ifdef HAVE_NETINET_SCTP_UIO_H
+#include <netinet/sctp_uio.h>
+#endif
+#include <stdlib.h>
+int main(void) {
+ int s, opt = 1;
+ if ((s = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP)) < 0)
+ exit(1);
+ if (setsockopt(s, IPPROTO_SCTP, SCTP_NODELAY, &opt, sizeof(int)) < 0)
+ exit(2);
+ exit(0);
+}], [apr_cv_sctp=yes], [apr_cv_sctp=no], [apr_cv_sctp=no])])
+
+if test "$apr_cv_sctp" = "yes"; then
+ have_sctp=1
+else
+ have_sctp=0
+fi
+])
+
+dnl APR_CHECK_MCAST: check for multicast interfaces
+AC_DEFUN([APR_CHECK_MCAST], [
+AC_CACHE_CHECK([for struct ip_mreq], [apr_cv_struct_ipmreq], [
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <netinet/in.h>
+], [
+ struct ip_mreq mip;
+ mip.imr_interface.s_addr = INADDR_ANY;
+], [apr_cv_struct_ipmreq=yes], [apr_cv_struct_ipmreq=no], [apr_cv_struct_ipmreq=yes])])
+
+if test $apr_cv_struct_ipmreq = yes; then
+ AC_DEFINE([HAVE_STRUCT_IPMREQ], 1, [Define if struct impreq was found])
+fi
+])
+
+dnl
+dnl APR_CHECK_H_ERRNO_FLAG
+dnl
+dnl checks which flags are necessary for <netdb.h> to define h_errno
+dnl
+AC_DEFUN([APR_CHECK_H_ERRNO_FLAG], [
+ AC_MSG_CHECKING([for h_errno in netdb.h])
+ AC_CACHE_VAL(ac_cv_h_errno_cppflags,[
+ APR_H_ERRNO_COMPILE_CHECK
+ if test "$ac_cv_h_errno_cppflags" = "no"; then
+ ac_save="$CPPFLAGS"
+ for flag in _XOPEN_SOURCE_EXTENDED; do
+ APR_H_ERRNO_COMPILE_CHECK($flag)
+ if test "$ac_cv_h_errno_cppflags" != "no"; then
+ break
+ fi
+ done
+ CPPFLAGS="$ac_save"
+ fi
+ ])
+ if test "$ac_cv_h_errno_cppflags" != "no"; then
+ if test "$ac_cv_h_errno_cppflags" != "yes"; then
+ CPPFLAGS="-D$ac_cv_h_errno_cppflags $CPPFLAGS"
+ AC_MSG_RESULT([yes, with -D$ac_cv_h_errno_cppflags])
+ else
+ AC_MSG_RESULT([$ac_cv_h_errno_cppflags])
+ fi
+ else
+ AC_MSG_RESULT([$ac_cv_h_errno_cppflags])
+ fi
+])
+
+
+AC_DEFUN([APR_EBCDIC], [
+ AC_CACHE_CHECK([whether system uses EBCDIC],ac_cv_ebcdic,[
+ AC_TRY_RUN( [
+int main(void) {
+ return (unsigned char)'A' != (unsigned char)0xC1;
+}
+],[
+ ac_cv_ebcdic="yes"
+],[
+ ac_cv_ebcdic="no"
+],[
+ ac_cv_ebcdic="no"
+])])
+ if test "$ac_cv_ebcdic" = "yes"; then
+ apr_charset_ebcdic=1
+ else
+ apr_charset_ebcdic=0
+ fi
+ AC_SUBST(apr_charset_ebcdic)
+])
+