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* build-aux/gendocs.sh (version): * doc/gendocs_template: * doc/gendocs_template_min: * doc/gnulib.texi: * lib/version-etc.c (COPYRIGHT_YEAR): Update copyright dates by hand in templates and the like. * all files: Run 'make update-copyright'.
88 lines
3.3 KiB
Plaintext
88 lines
3.3 KiB
Plaintext
# gc-random.m4 serial 6
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dnl Copyright (C) 2005-2017 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_GC_RANDOM],
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[
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# Devices with randomness.
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# FIXME: Are these the best defaults?
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AC_REQUIRE([AC_CANONICAL_HOST])dnl
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case "$host_os" in
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*openbsd* | *mirbsd*)
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NAME_OF_RANDOM_DEVICE="/dev/srandom"
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NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/prandom"
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NAME_OF_NONCE_DEVICE="/dev/urandom"
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;;
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*netbsd*)
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NAME_OF_RANDOM_DEVICE="/dev/srandom"
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NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/urandom"
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NAME_OF_NONCE_DEVICE="/dev/urandom"
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;;
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*solaris* | *irix* | *dec-osf* )
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NAME_OF_RANDOM_DEVICE="/dev/random"
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NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/random"
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NAME_OF_NONCE_DEVICE="/dev/random"
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;;
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*)
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NAME_OF_RANDOM_DEVICE="/dev/random"
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NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/urandom"
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NAME_OF_NONCE_DEVICE="/dev/urandom"
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;;
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esac
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AC_MSG_CHECKING([device with (strong) random data...])
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AC_ARG_ENABLE([random-device],
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AS_HELP_STRING([--enable-random-device],
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[device with (strong) randomness (for Nettle)]),
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NAME_OF_RANDOM_DEVICE=$enableval)
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AC_MSG_RESULT([$NAME_OF_RANDOM_DEVICE])
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AC_MSG_CHECKING([device with pseudo random data...])
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AC_ARG_ENABLE([pseudo-random-device],
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AS_HELP_STRING([--enable-pseudo-random-device],
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[device with pseudo randomness (for Nettle)]),
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NAME_OF_PSEUDO_RANDOM_DEVICE=$enableval)
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AC_MSG_RESULT([$NAME_OF_PSEUDO_RANDOM_DEVICE])
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AC_MSG_CHECKING([device with unpredictable data for nonces...])
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AC_ARG_ENABLE([nonce-device],
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AS_HELP_STRING([--enable-nonce-device],
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[device with unpredictable nonces (for Nettle)]),
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NAME_OF_NONCE_DEVICE=$enableval)
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AC_MSG_RESULT([$NAME_OF_NONCE_DEVICE])
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if test "$cross_compiling" != yes; then
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if test "$NAME_OF_RANDOM_DEVICE" != "no"; then
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AC_CHECK_FILE([$NAME_OF_RANDOM_DEVICE],,
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AC_MSG_WARN([[Device '$NAME_OF_RANDOM_DEVICE' does not exist, consider to use --enable-random-device]]))
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fi
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if test "$NAME_OF_PSEUDO_RANDOM_DEVICE" != "no"; then
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AC_CHECK_FILE([$NAME_OF_PSEUDO_RANDOM_DEVICE],,
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AC_MSG_WARN([[Device '$NAME_OF_PSEUDO_RANDOM_DEVICE' does not exist, consider to use --enable-pseudo-random-device]]))
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fi
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if test "$NAME_OF_NONCE_DEVICE" != "no"; then
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AC_CHECK_FILE([$NAME_OF_NONCE_DEVICE],,
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AC_MSG_WARN([[Device '$NAME_OF_NONCE_DEVICE' does not exist, consider to use --enable-nonce-device]]))
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fi
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else
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AC_MSG_NOTICE([[Cross compiling, assuming random devices exists on the target host...]])
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fi
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# FIXME?: Open+read 42 bytes+close twice and compare data. Should differ.
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AC_DEFINE_UNQUOTED([NAME_OF_RANDOM_DEVICE], ["$NAME_OF_RANDOM_DEVICE"],
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[defined to the name of the (strong) random device])
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AC_DEFINE_UNQUOTED([NAME_OF_PSEUDO_RANDOM_DEVICE],
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"$NAME_OF_PSEUDO_RANDOM_DEVICE",
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[defined to the name of the pseudo random device])
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AC_DEFINE_UNQUOTED([NAME_OF_NONCE_DEVICE], ["$NAME_OF_NONCE_DEVICE"],
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[defined to the name of the unpredictable nonce device])
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])
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