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41 lines
1.4 KiB
Text
41 lines
1.4 KiB
Text
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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_TRY_COMPILE([
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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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