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f9d4a040b4
* lib/mkstemp.c: * lib/secure_getenv.c: * lib/tempname.c: * lib/tempname.h: * m4/mkstemp.m4: * m4/secure_getenv.m4: * m4/tempname.m4: New files. * lib/Makefile.am: * m4/gnulib-cache.m4: * m4/gnulib-comp.m4: Add modules.
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/* Look up an environment variable more securely.
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Copyright 2013-2014 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <stdlib.h>
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#if !HAVE___SECURE_GETENV
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# if HAVE_ISSETUGID
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# include <unistd.h>
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# else
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# undef issetugid
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# define issetugid() 1
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# endif
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#endif
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char *
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secure_getenv (char const *name)
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{
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#if HAVE___SECURE_GETENV
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return __secure_getenv (name);
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#else
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if (issetugid ())
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return 0;
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return getenv (name);
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#endif
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}
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