-# getpass.m4 serial 1
-dnl Copyright (C) 2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License. As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# getpass.m4 serial 11
+dnl Copyright (C) 2002-2003, 2005-2006, 2009-2010 Free Software Foundation,
+dnl Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+# Provide a getpass() function if the system doesn't have it.
AC_DEFUN([gl_FUNC_GETPASS],
[
- AC_REPLACE_FUNCS(getpass)
+ AC_REPLACE_FUNCS([getpass])
+ AC_CHECK_DECLS_ONCE([getpass])
if test $ac_cv_func_getpass = no; then
gl_PREREQ_GETPASS
fi
])
+# Provide the GNU getpass() implementation. It supports passwords of
+# arbitrary length (not just 8 bytes as on HP-UX).
+AC_DEFUN([gl_FUNC_GETPASS_GNU],
+[
+ AC_CHECK_DECLS_ONCE([getpass])
+ dnl TODO: Detect when GNU getpass() is already found in glibc.
+ AC_LIBOBJ([getpass])
+ gl_PREREQ_GETPASS
+ dnl We must choose a different name for our function, since on ELF systems
+ dnl an unusable getpass() in libc.so would override our getpass() if it is
+ dnl compiled into a shared library.
+ AC_DEFINE([getpass], [gnu_getpass],
+ [Define to a replacement function name for getpass().])
+])
+
# Prerequisites of lib/getpass.c.
AC_DEFUN([gl_PREREQ_GETPASS], [
+ AC_CHECK_HEADERS_ONCE([stdio_ext.h termios.h])
+ AC_CHECK_FUNCS_ONCE([__fsetlocking tcgetattr tcsetattr])
+ AC_CHECK_DECLS([__fsetlocking],,,
+ [#include <stdio.h>
+ #if HAVE_STDIO_EXT_H
+ #include <stdio_ext.h>
+ #endif])
+ AC_CHECK_DECLS_ONCE([fflush_unlocked])
+ AC_CHECK_DECLS_ONCE([flockfile])
+ AC_CHECK_DECLS_ONCE([fputs_unlocked])
+ AC_CHECK_DECLS_ONCE([funlockfile])
+ AC_CHECK_DECLS_ONCE([putc_unlocked])
:
])
-