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AC_DEFUN([CHECK_PROGNAME], [
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AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
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[[ extern char *__progname; printf("%s", __progname); ]])],
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[ ac_cv_libc_defines___progname="yes" ],
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[ ac_cv_libc_defines___progname="no"
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])
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])
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if test "x$ac_cv_libc_defines___progname" = "xyes" ; then
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AC_DEFINE([HAVE___PROGNAME], [1], [Define if libc defines __progname])
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fi
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])
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AC_DEFUN([CHECK_SYSCALL_COMPAT], [
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AC_CHECK_FUNCS([accept4 pledge poll])
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AM_CONDITIONAL([HAVE_ACCEPT4], [test "x$ac_cv_func_accept4" = xyes])
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AM_CONDITIONAL([HAVE_PLEDGE], [test "x$ac_cv_func_pledge" = xyes])
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AM_CONDITIONAL([HAVE_POLL], [test "x$ac_cv_func_poll" = xyes])
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])
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AC_DEFUN([CHECK_B64_NTOP], [
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AC_SEARCH_LIBS([b64_ntop],[resolv])
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AC_SEARCH_LIBS([__b64_ntop],[resolv])
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AC_CACHE_CHECK([for b64_ntop], ac_cv_have_b64_ntop_arg, [
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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|
#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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|
#include <resolv.h>
|
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|
]], [[ b64_ntop(NULL, 0, NULL, 0); ]])],
|
|
|
[ ac_cv_have_b64_ntop_arg="yes" ],
|
|
|
[ ac_cv_have_b64_ntop_arg="no"
|
|
|
])
|
|
|
])
|
|
|
AM_CONDITIONAL([HAVE_B64_NTOP], [test "x$ac_cv_func_b64_ntop_arg" = xyes])
|
|
|
])
|
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|
|
|
|
AC_DEFUN([CHECK_CRYPTO_COMPAT], [
|
|
|
# Check crypto-related libc functions and syscalls
|
|
|
AC_CHECK_FUNCS([arc4random arc4random_buf arc4random_uniform])
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|
|
AC_CHECK_FUNCS([explicit_bzero getauxval getentropy])
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|
|
AC_CHECK_FUNCS([timingsafe_bcmp timingsafe_memcmp])
|
|
|
AM_CONDITIONAL([HAVE_ARC4RANDOM], [test "x$ac_cv_func_arc4random" = xyes])
|
|
|
AM_CONDITIONAL([HAVE_ARC4RANDOM_BUF], [test "x$ac_cv_func_arc4random_buf" = xyes])
|
|
|
AM_CONDITIONAL([HAVE_ARC4RANDOM_UNIFORM], [test "x$ac_cv_func_arc4random_uniform" = xyes])
|
|
|
AM_CONDITIONAL([HAVE_EXPLICIT_BZERO], [test "x$ac_cv_func_explicit_bzero" = xyes])
|
|
|
AM_CONDITIONAL([HAVE_GETENTROPY], [test "x$ac_cv_func_getentropy" = xyes])
|
|
|
AM_CONDITIONAL([HAVE_TIMINGSAFE_BCMP], [test "x$ac_cv_func_timingsafe_bcmp" = xyes])
|
|
|
AM_CONDITIONAL([HAVE_TIMINGSAFE_MEMCMP], [test "x$ac_cv_func_timingsafe_memcmp" = xyes])
|
|
|
|
|
|
# Override arc4random_buf implementations with known issues
|
|
|
AM_CONDITIONAL([HAVE_ARC4RANDOM_BUF],
|
|
|
[test "x$USE_BUILTIN_ARC4RANDOM" != yes \
|
|
|
-a "x$ac_cv_func_arc4random_buf" = xyes])
|
|
|
|
|
|
# Check for getentropy fallback dependencies
|
|
|
AC_CHECK_FUNC([getauxval])
|
|
|
AC_SEARCH_LIBS([clock_gettime],[rt posix4])
|
|
|
AC_CHECK_FUNC([clock_gettime])
|
|
|
AC_SEARCH_LIBS([dl_iterate_phdr],[dl])
|
|
|
AC_CHECK_FUNC([dl_iterate_phdr])
|
|
|
])
|
|
|
|
|
|
AC_DEFUN([CHECK_VA_COPY], [
|
|
|
AC_CACHE_CHECK([whether va_copy exists], ac_cv_have_va_copy, [
|
|
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
|
|
|
#include <stdarg.h>
|
|
|
va_list x,y;
|
|
|
]], [[ va_copy(x,y); ]])],
|
|
|
[ ac_cv_have_va_copy="yes" ],
|
|
|
[ ac_cv_have_va_copy="no"
|
|
|
])
|
|
|
])
|
|
|
if test "x$ac_cv_have_va_copy" = "xyes" ; then
|
|
|
AC_DEFINE([HAVE_VA_COPY], [1], [Define if va_copy exists])
|
|
|
fi
|
|
|
|
|
|
AC_CACHE_CHECK([whether __va_copy exists], ac_cv_have___va_copy, [
|
|
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
|
|
|
#include <stdarg.h>
|
|
|
va_list x,y;
|
|
|
]], [[ __va_copy(x,y); ]])],
|
|
|
[ ac_cv_have___va_copy="yes" ], [ ac_cv_have___va_copy="no"
|
|
|
])
|
|
|
])
|
|
|
if test "x$ac_cv_have___va_copy" = "xyes" ; then
|
|
|
AC_DEFINE([HAVE___VA_COPY], [1], [Define if __va_copy exists])
|
|
|
fi
|
|
|
])
|