40 lines
1.4 KiB
40 lines
1.4 KiB
dnl Check for socklen_t: historically on BSD it is an int, and in |
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dnl POSIX 1g it is a type of its own, but some platforms use different |
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dnl types for the argument to getsockopt, getpeername, etc. So we |
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dnl have to test to find something that will work. |
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AC_DEFUN([TYPE_SOCKLEN_T], |
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[ |
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AC_CHECK_TYPE([socklen_t], ,[ |
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AC_MSG_CHECKING([for socklen_t equivalent]) |
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AC_CACHE_VAL([git_cv_socklen_t_equiv], |
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[ |
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# Systems have either "struct sockaddr *" or |
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# "void *" as the second argument to getpeername |
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git_cv_socklen_t_equiv= |
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for arg2 in "struct sockaddr" void; do |
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for t in int size_t unsigned long "unsigned long"; do |
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([ |
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#include <sys/types.h> |
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#include <sys/socket.h> |
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int getpeername (int, $arg2 *, $t *); |
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],[ |
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$t len; |
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getpeername(0,0,&len); |
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])],[ |
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git_cv_socklen_t_equiv="$t" |
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break 2 |
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]) |
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done |
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done |
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if test "x$git_cv_socklen_t_equiv" = x; then |
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AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) |
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fi |
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]) |
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AC_MSG_RESULT($git_cv_socklen_t_equiv) |
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AC_DEFINE_UNQUOTED(socklen_t, $git_cv_socklen_t_equiv, |
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[type to use in place of socklen_t if not defined])], |
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[#include <sys/types.h> |
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#include <sys/socket.h>]) |
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])
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