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54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/* Setting environment variables.
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Copyright (C) 2001-2004 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>. */
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#if HAVE_SETENV || HAVE_UNSETENV
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/* Get setenv(), unsetenv() declarations. */
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# include <stdlib.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if !HAVE_SETENV
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/* Set NAME to VALUE in the environment.
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If REPLACE is nonzero, overwrite an existing value. */
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extern int setenv (const char *name, const char *value, int replace);
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#endif
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#if HAVE_UNSETENV
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# if VOID_UNSETENV
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/* On some systems, unsetenv() returns void.
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This is the case for FreeBSD 4.8, NetBSD 1.6, OpenBSD 3.4. */
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# define unsetenv(name) ((unsetenv)(name), 0)
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# endif
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#else
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/* Remove the variable NAME from the environment. */
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extern int unsetenv (const char *name);
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#endif
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#ifdef __cplusplus
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}
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#endif
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