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authorAlberto Gonzalez Iniesta <agi@inittab.org>2012-11-05 16:28:10 +0100
committerAlberto Gonzalez Iniesta <agi@inittab.org>2012-11-05 16:28:10 +0100
commitd213c4e5576e2fd601679e0d7b2fb1262b807111 (patch)
tree5f0cc82bd0f11fb13b385417604d04c751245a92 /m4/ax_socklen_t.m4
parent79c8d3ef7a938f86472e549ef64e1fb820dc80c4 (diff)
parent8dd0350e1607aa30f7a043c8d5ec7a7eeb874115 (diff)
Merge tag 'upstream/2.3_rc1'
Upstream version 2.3_rc1
Diffstat (limited to 'm4/ax_socklen_t.m4')
-rw-r--r--m4/ax_socklen_t.m465
1 files changed, 65 insertions, 0 deletions
diff --git a/m4/ax_socklen_t.m4 b/m4/ax_socklen_t.m4
new file mode 100644
index 0000000..cd7cad8
--- /dev/null
+++ b/m4/ax_socklen_t.m4
@@ -0,0 +1,65 @@
+dnl -- The following is base of curl's acinclude.m4 --
+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([AX_TYPE_SOCKLEN_T], [
+ AC_CHECK_TYPE(
+ [socklen_t],
+ ,
+ [
+ AS_VAR_PUSHDEF([VAR],[ax_cv_socklen_t_equiv])dnl
+ AC_CACHE_CHECK(
+ [for socklen_t equivalent],
+ [VAR],
+ [
+ #AS_CASE is not supported on <autoconf-2.60
+ case "${host}" in
+ *-mingw*) VAR=int ;;
+ *)
+ # Systems have either "struct sockaddr *" or
+ # "void *" as the second argument to getpeername
+ for arg2 in "struct sockaddr" void; do
+ for t in int size_t unsigned long "unsigned long"; do
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[
+#include <sys/types.h>
+#include <sys/socket.h>
+int getpeername (int, $arg2 *, $t *);
+ ]],
+ [[
+$t len;
+getpeername(0,0,&len);
+ ]]
+ )],
+ [VAR="$t"; break]
+ )
+ done
+ test -n "$VAR" && break
+ done
+ ;;
+ esac
+ ]
+ AS_VAR_IF(
+ [VAR],
+ [],
+ [AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])],
+ [AC_DEFINE_UNQUOTED(
+ [socklen_t],
+ [$VAR],
+ [type to use in place of socklen_t if not defined]
+ )]
+ )
+ )
+ ],
+ [[
+#include <sys/types.h>
+#ifdef WIN32
+#include <ws2tcpip.h>
+#else
+#include <sys/socket.h>
+#endif
+ ]]
+ )
+])