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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([git_cv_socklen_t_equiv], | |
[ | |
# Systems have either "struct sockaddr *" or | |
# "void *" as the second argument to getpeername | |
git_cv_socklen_t_equiv= | |
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 *); | |
],[ | |
$t len; | |
getpeername(0,0,&len); | |
])],[ | |
git_cv_socklen_t_equiv="$t" | |
break 2 | |
]) | |
done | |
done | |
if test "x$git_cv_socklen_t_equiv" = x; then | |
AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) | |
fi | |
]) | |
AC_MSG_RESULT($git_cv_socklen_t_equiv) | |
AC_DEFINE_UNQUOTED(socklen_t, $git_cv_socklen_t_equiv, | |
[type to use in place of socklen_t if not defined])], | |
[#include <sys/types.h> | |
#include <sys/socket.h>]) | |
]) |