58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* This file may have been modified by DJ Delorie (Jan 1991). If so,
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** these modifications are Copyright (C) 1991 DJ Delorie.
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*/
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/*-
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* Copyright (c) 1988 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that: (1) source distributions retain this entire copyright
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* notice and comment, and (2) distributions including binaries display
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* the following acknowledgement: ``This product includes software
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* developed by the University of California, Berkeley and its contributors''
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* in the documentation or other materials provided with the distribution
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* and in all advertising materials mentioning features or use of this
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* software. Neither the name of the University nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include <reent.h>
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#include <stdlib.h>
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#include <string.h>
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#include "envlock.h"
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/* _putenv_r - reentrant version of putenv that either adds
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or replaces the environment variable "name"
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with "value" which is specified by str as "name=value". */
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int
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_DEFUN (_putenv_r, (reent_ptr, str),
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struct _reent *reent_ptr _AND
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_CONST char *str)
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{
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register char *p, *equal;
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int rval;
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p = _strdup_r (reent_ptr, str);
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if (!p)
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return 1;
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if (!(equal = index (p, '=')))
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{
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(void) _free_r (reent_ptr, p);
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return 1;
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}
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*equal = '\0';
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rval = _setenv_r (reent_ptr, p, equal + 1, 1);
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(void) _free_r (reent_ptr, p);
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return rval;
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}
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