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annotate m4/getaddrinfo.m4 @ 10820:bd7113fe42ce

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getaddrinfo: use the modules servent and hostent.
author Bruno Haible <bruno@clisp.org>
date Mon, 17 Nov 2008 12:17:39 +0100
parents 9c30f79e8386
children 46c9755d1dd9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10820
bd7113fe42ce getaddrinfo: use the modules servent and hostent.
Bruno Haible <bruno@clisp.org>
parents: 10815
diff changeset
1 # getaddrinfo.m4 serial 18
10680
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Simon Josefsson <simon@josefsson.org>
parents: 10638
diff changeset
2 dnl Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
5611
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5408
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3 dnl This file is free software; the Free Software Foundation
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5408
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4 dnl gives unlimited permission to copy and/or distribute it,
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5408
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5 dnl with or without modifications, as long as this notice is preserved.
5408
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parents:
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6
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Simon Josefsson <simon@josefsson.org>
parents:
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7 AC_DEFUN([gl_GETADDRINFO],
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parents:
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8 [
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9 AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
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parents: 10638
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10 AC_REQUIRE([gl_HEADER_NETDB])dnl for HAVE_NETDB_H
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parents: 6852
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11 AC_MSG_NOTICE([checking how to do getaddrinfo, freeaddrinfo and getnameinfo])
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12
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Jim Meyering <jim@meyering.net>
parents: 6306
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13 AC_SEARCH_LIBS(getaddrinfo, [nsl socket])
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14 AC_CACHE_CHECK([for getaddrinfo], [gl_cv_func_getaddrinfo], [
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15 AC_TRY_LINK([
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16 #include <sys/types.h>
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17 #ifdef HAVE_SYS_SOCKET_H
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18 #include <sys/socket.h>
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19 #endif
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20 #ifdef HAVE_NETDB_H
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21 #include <netdb.h>
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22 #endif
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23 #include <stddef.h>
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24 ], [getaddrinfo("", "", NULL, NULL);],
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25 [gl_cv_func_getaddrinfo=yes],
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26 [gl_cv_func_getaddrinfo=no])])
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parents: 9209
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27 if test $gl_cv_func_getaddrinfo = no; then
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28 AC_CACHE_CHECK(for getaddrinfo in ws2tcpip.h and -lws2_32,
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29 gl_cv_w32_getaddrinfo, [
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30 gl_cv_w32_getaddrinfo=no
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31 am_save_LIBS="$LIBS"
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32 LIBS="$LIBS -lws2_32"
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33 AC_TRY_LINK([
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34 #ifdef HAVE_WS2TCPIP_H
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35 #include <ws2tcpip.h>
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36 #endif
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37 #include <stddef.h>
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38 ], [getaddrinfo(NULL, NULL, NULL, NULL);], gl_cv_w32_getaddrinfo=yes)
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39 LIBS="$am_save_LIBS"
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40 ])
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41 if test "$gl_cv_w32_getaddrinfo" = "yes"; then
f9e910a182f7 2006-02-17 Eric Blake <address@hidden>
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42 LIBS="$LIBS -lws2_32"
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43 else
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44 AC_LIBOBJ(getaddrinfo)
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45 fi
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46 fi
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47
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48 # We can't use AC_REPLACE_FUNCS here because gai_strerror may be an
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49 # inline function declared in ws2tcpip.h, so we need to get that
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50 # header included somehow.
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51 AC_CACHE_CHECK([for gai_strerror (possibly via ws2tcpip.h)],
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52 gl_cv_func_gai_strerror, [
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53 AC_TRY_LINK([
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parents: 7100
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54 #include <sys/types.h>
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parents: 7100
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55 #ifdef HAVE_SYS_SOCKET_H
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56 #include <sys/socket.h>
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parents: 7100
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57 #endif
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58 #ifdef HAVE_NETDB_H
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59 #include <netdb.h>
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60 #endif
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61 #ifdef HAVE_WS2TCPIP_H
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62 #include <ws2tcpip.h>
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parents: 7100
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63 #endif
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64 #include <stddef.h>
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65 ], [gai_strerror (NULL);],
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66 [gl_cv_func_gai_strerror=yes],
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67 [gl_cv_func_gai_strerror=no])])
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68 if test $gl_cv_func_gai_strerror = no; then
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69 AC_LIBOBJ(gai_strerror)
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70 fi
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71
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72 gl_PREREQ_GETADDRINFO
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73 ])
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74
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75 # Prerequisites of lib/netdb.in.h and lib/getaddrinfo.c.
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parents:
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76 AC_DEFUN([gl_PREREQ_GETADDRINFO], [
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77 AC_REQUIRE([gl_NETDB_H_DEFAULTS])
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78 AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
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79 AC_REQUIRE([gl_HOSTENT]) dnl for HOSTENT_LIB
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80 AC_REQUIRE([gl_SERVENT]) dnl for SERVENT_LIB
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81 LIBS="$LIBS $HOSTENT_LIB $SERVENT_LIB"
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82 AC_REQUIRE([AC_C_RESTRICT])
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83 AC_REQUIRE([gl_SOCKET_FAMILIES])
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84 AC_REQUIRE([gl_HEADER_SYS_SOCKET])
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85 AC_REQUIRE([AC_C_INLINE])
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86 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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87
28050ad34088 Fix getaddrinfo emulation for systems with struct sockaddr.sa_len.
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88 dnl Including sys/socket.h is wrong for Windows, but Windows does not
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89 dnl have sa_len so the result is correct anyway.
28050ad34088 Fix getaddrinfo emulation for systems with struct sockaddr.sa_len.
Paolo Bonzini <bonzini@gnu.org>
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90 AC_CHECK_MEMBERS([struct sockaddr.sa_len], , , [#include <sys/socket.h>])
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91
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92 AC_CHECK_HEADERS_ONCE(netinet/in.h)
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93
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94 AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, gai_strerror, getnameinfo],,,[
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95 /* sys/types.h is not needed according to POSIX, but the
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96 sys/socket.h in i386-unknown-freebsd4.10 and
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97 powerpc-apple-darwin5.5 required it. */
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98 #include <sys/types.h>
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99 #ifdef HAVE_SYS_SOCKET_H
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100 #include <sys/socket.h>
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101 #endif
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102 #ifdef HAVE_NETDB_H
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103 #include <netdb.h>
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104 #endif
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105 #ifdef HAVE_WS2TCPIP_H
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106 #include <ws2tcpip.h>
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107 #endif
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108 ])
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109 if test $ac_cv_have_decl_getaddrinfo = no; then
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110 HAVE_DECL_GETADDRINFO=0
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111 fi
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112 if test $ac_cv_have_decl_freeaddrinfo = no; then
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113 HAVE_DECL_FREEADDRINFO=0
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114 fi
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115 if test $ac_cv_have_decl_gai_strerror = no; then
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116 HAVE_DECL_GAI_STRERROR=0
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117 fi
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118 if test $ac_cv_have_decl_getnameinfo = no; then
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119 HAVE_DECL_GETNAMEINFO=0
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120 fi
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121
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Simon Josefsson <simon@josefsson.org>
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122 AC_CHECK_TYPES([struct addrinfo],,,[
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Paul Eggert <eggert@cs.ucla.edu>
parents: 6339
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123 #include <sys/types.h>
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124 #ifdef HAVE_SYS_SOCKET_H
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Paul Eggert <eggert@cs.ucla.edu>
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125 #include <sys/socket.h>
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Simon Josefsson <simon@josefsson.org>
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126 #endif
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Simon Josefsson <simon@josefsson.org>
parents: 6340
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127 #ifdef HAVE_NETDB_H
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128 #include <netdb.h>
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129 #endif
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Simon Josefsson <simon@josefsson.org>
parents: 6340
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130 #ifdef HAVE_WS2TCPIP_H
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Simon Josefsson <simon@josefsson.org>
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131 #include <ws2tcpip.h>
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Simon Josefsson <simon@josefsson.org>
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132 #endif
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81f384f9b845 2005-10-01 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 6316
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133 ])
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Bruno Haible <bruno@clisp.org>
parents: 10680
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134 if test $ac_cv_type_struct_addrinfo = no; then
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Bruno Haible <bruno@clisp.org>
parents: 10680
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135 HAVE_STRUCT_ADDRINFO=0
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Bruno Haible <bruno@clisp.org>
parents: 10680
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136 fi
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81f384f9b845 2005-10-01 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 6316
diff changeset
137 ])