1dnl This comes from libcurl's acinclude.m4. it is not clear if this 2dnl is original libcurl code, or other code, so we include the libcurl 3dnl copyright here 4dnl 5dnl 6dnl Copyright (c) 1996 - 2005, Daniel Stenberg, <daniel@haxx.se>. 7dnl 8dnl All rights reserved. 9dnl 10dnl Permission to use, copy, modify, and distribute this software for any purpose 11dnl with or without fee is hereby granted, provided that the above copyright 12dnl notice and this permission notice appear in all copies. 13dnl 14dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15dnl IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16dnl FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN 17dnl NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 18dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 19dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE 20dnl OR OTHER DEALINGS IN THE SOFTWARE. 21dnl 22dnl Except as contained in this notice, the name of a copyright holder shall not 23dnl be used in advertising or otherwise to promote the sale, use or other dealings 24dnl in this Software without prior written authorization of the copyright holder. 25 26dnl Check for socklen_t: historically on BSD it is an int, and in 27dnl POSIX 1g it is a type of its own, but some platforms use different 28dnl types for the argument to getsockopt, getpeername, etc. So we 29dnl have to test to find something that will work. 30 31dnl Remove the AC_CHECK_TYPE - on HP-UX it would find a socklen_t, but the 32dnl function prototypes for getsockopt et al will not actually use 33dnl socklen_t args unless _XOPEN_SOURCE_EXTENDED is defined. so, the 34dnl AC_CHECK_TYPE will find a socklen_t and think all is happiness and 35dnl joy when you will really get warnings about mismatch types - type 36dnl mismatches that would be possibly Bad (tm) in a 64-bit compile. 37dnl raj 2005-05-11 this change may be redistributed at will 38 39dnl also, added "extern" to the "int getpeername" in an attempt to resolve 40dnl an issue with this code under Solaris 2.9. this too may be 41dnl redistributed at will 42 43AC_DEFUN([OLD_TYPE_SOCKLEN_T], 44[ 45 AC_MSG_CHECKING([for socklen_t equivalent]) 46 AC_CACHE_VAL([curl_cv_socklen_t_equiv], 47 [ 48 # Systems have either "struct sockaddr *" or 49 # "void *" as the second argument to getpeername 50 curl_cv_socklen_t_equiv= 51 for arg2 in "struct sockaddr" void; do 52 for t in int size_t unsigned long "unsigned long" socklen_t; do 53 AC_TRY_COMPILE([ 54 #ifdef HAVE_SYS_TYPES_H 55 #include <sys/types.h> 56 #endif 57 #ifdef HAVE_SYS_SOCKET_H 58 #include <sys/socket.h> 59 #endif 60 61 extern int getpeername (int, $arg2 *, $t *); 62 ],[ 63 $t len; 64 getpeername(0,0,&len); 65 ],[ 66 curl_cv_socklen_t_equiv="$t" 67 break 68 ]) 69 done 70 done 71 72 if test "x$curl_cv_socklen_t_equiv" = x; then 73 # take a wild guess 74 curl_cv_socklen_t_equiv="socklen_t" 75 AC_MSG_WARN([Cannot find a type to use in place of socklen_t, guessing socklen_t]) 76 fi 77 ]) 78 AC_MSG_RESULT($curl_cv_socklen_t_equiv) 79 AC_DEFINE_UNQUOTED(netperf_socklen_t, $curl_cv_socklen_t_equiv, 80 [type to use in place of socklen_t if not defined]) 81]) 82