2024-04-30 19:15:39 +08:00
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# getpass.m4 serial 20
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dnl Copyright (C) 2002-2003, 2005-2006, 2009-2023 Free Software Foundation,
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2022-05-14 03:18:11 +08:00
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dnl 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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# Provide a getpass() function if the system doesn't have it.
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AC_DEFUN_ONCE([gl_FUNC_GETPASS],
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[
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AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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dnl Persuade Solaris <unistd.h> and <stdlib.h> to declare getpass().
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AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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2024-04-30 19:15:39 +08:00
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dnl Persuade Android <unistd.h> to not define getpass() as an inline function.
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AC_DEFINE([NO_INLINE_GETPASS], [1], [Define to 1 on Android.])
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2022-05-14 03:18:11 +08:00
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AC_CHECK_FUNCS_ONCE([getpass])
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if test $ac_cv_func_getpass = no; then
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HAVE_GETPASS=0
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fi
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])
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# Provide the GNU getpass() implementation. It supports passwords of
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# arbitrary length (not just 8 bytes as on HP-UX).
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AC_DEFUN([gl_FUNC_GETPASS_GNU],
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[
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AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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AC_REQUIRE([gl_FUNC_GETPASS])
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if test $ac_cv_func_getpass = yes; then
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AC_CACHE_CHECK([for getpass without length limitations],
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[gl_cv_func_getpass_good],
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[AC_EGREP_CPP([Lucky GNU user],
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[
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#include <features.h>
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#ifdef __GNU_LIBRARY__
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#if (__GLIBC__ >= 2) && !defined __UCLIBC__
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Lucky GNU user
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#endif
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#endif
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],
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[gl_cv_func_getpass_good=yes],
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[gl_cv_func_getpass_good=no])
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])
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if test $gl_cv_func_getpass_good != yes; then
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REPLACE_GETPASS_FOR_GETPASS_GNU=1
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fi
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fi
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])
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# Prerequisites of lib/getpass.c.
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AC_DEFUN([gl_PREREQ_GETPASS], [
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AC_CHECK_HEADERS_ONCE([stdio_ext.h termios.h])
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gl_CHECK_FUNCS_ANDROID([__fsetlocking], [[#include <stdio_ext.h>]])
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AC_CHECK_DECLS([__fsetlocking],,,
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[[#include <stdio.h>
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#if HAVE_STDIO_EXT_H
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#include <stdio_ext.h>
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#endif]])
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AC_CHECK_DECLS_ONCE([fflush_unlocked])
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AC_CHECK_DECLS_ONCE([flockfile])
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AC_CHECK_DECLS_ONCE([fputs_unlocked])
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AC_CHECK_DECLS_ONCE([funlockfile])
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AC_CHECK_DECLS_ONCE([putc_unlocked])
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gl_HAVE_TCGETATTR
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2022-05-14 03:18:11 +08:00
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dnl We can't use AC_CHECK_FUNC here, because tcsetattr() is defined as a
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dnl static inline function when compiling for Android 4.4 or older.
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AC_CACHE_CHECK([for tcsetattr], [gl_cv_func_tcsetattr],
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[AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <termios.h>
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struct termios x;
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]],
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[[return tcsetattr(0,0,&x);]])
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],
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[gl_cv_func_tcsetattr=yes],
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[gl_cv_func_tcsetattr=no])
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])
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if test $gl_cv_func_tcsetattr = yes; then
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HAVE_TCSETATTR=1
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else
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HAVE_TCSETATTR=0
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fi
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AC_DEFINE_UNQUOTED([HAVE_TCSETATTR], [$HAVE_TCSETATTR],
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[Define to 1 if the system has the 'tcsetattr' function.])
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])
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