1 files changed, 42 insertions, 1 deletions

diff --git a/aclocal.m4 b/aclocal.m4
index d196b7585..2705a9b23 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,4 +1,4 @@
-dnl $Id: aclocal.m4,v 1.4 2000/06/26 00:20:19 djm Exp $
+dnl $Id: aclocal.m4,v 1.5 2001/10/22 00:53:59 tim Exp $
 dnl
 dnl OpenSSH-specific autoconf macros
 dnl
@@ -43,3 +43,44 @@ AC_DEFUN(OSSH_PATH_ENTROPY_PROG, [
         AC_SUBST($1)
 ])
 
+dnl Check for socklen_t: historically on BSD it is an int, and in
+dnl POSIX 1g it is a type of its own, but some platforms use different
+dnl types for the argument to getsockopt, getpeername, etc.  So we
+dnl have to test to find something that will work.
+AC_DEFUN([TYPE_SOCKLEN_T],
+[
+   AC_CHECK_TYPE([socklen_t], ,[
+      AC_MSG_CHECKING([for socklen_t equivalent])
+      AC_CACHE_VAL([curl_cv_socklen_t_equiv],
+      [
+         # Systems have either "struct sockaddr *" or
+         # "void *" as the second argument to getpeername
+         curl_cv_socklen_t_equiv=
+         for arg2 in "struct sockaddr" void; do
+            for t in int size_t unsigned long "unsigned long"; do
+               AC_TRY_COMPILE([
+                  #include <sys/types.h>
+                  #include <sys/socket.h>
+
+                  int getpeername (int, $arg2 *, $t *);
+               ],[
+                  $t len;
+                  getpeername(0,0,&len);
+               ],[
+                  curl_cv_socklen_t_equiv="$t"
+                  break
+               ])
+            done
+         done
+
+         if test "x$curl_cv_socklen_t_equiv" = x; then
+            AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
+         fi
+      ])
+      AC_MSG_RESULT($curl_cv_socklen_t_equiv)
+      AC_DEFINE_UNQUOTED(socklen_t, $curl_cv_socklen_t_equiv,
+                        [type to use in place of socklen_t if not defined])],
+      [#include <sys/types.h>
+#include <sys/socket.h>])
+])
+