Mercurial > gnulib
view m4/secure_getenv.m4 @ 18324:d069a85b1ccd
secure_getenv: Port to many more platforms.
* m4/secure_getenv.m4 (gl_PREREQ_SECURE_GETENV): Also check for get*id
functions.
* lib/secure_getenv.c (secure_getenv): Add alternate implementations
for non-BSD Unix platforms and for native Windows.
* doc/glibc-functions/secure_getenv.texi: Remove known issue.
Prompted by a request from Nikos Mavrogiannopoulos.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 29 May 2016 12:54:32 +0200 |
parents | 31b2239ca59c |
children | 12df2165ec1c |
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# Look up an environment variable more securely. dnl Copyright 2013-2016 Free Software Foundation, 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. AC_DEFUN([gl_FUNC_SECURE_GETENV], [ dnl Persuade glibc <stdlib.h> to declare secure_getenv(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([secure_getenv]) if test $ac_cv_func_secure_getenv = no; then HAVE_SECURE_GETENV=0 fi ]) # Prerequisites of lib/secure_getenv.c. AC_DEFUN([gl_PREREQ_SECURE_GETENV], [ AC_CHECK_FUNCS([__secure_getenv]) if test $ac_cv_func___secure_getenv = no; then AC_CHECK_FUNCS([issetugid]) fi AC_CHECK_FUNCS_ONCE([getuid geteuid getgid getegid]) ])