Sweden-Number/dlls/msvcrt/environ.c

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/*
* msvcrt.dll environment functions
*
* Copyright 1996,1998 Marcus Meissner
* Copyright 1996 Jukka Iivonen
* Copyright 1997,2000 Uwe Bonnes
* Copyright 2000 Jon Griffiths
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "wine/unicode.h"
#include "msvcrt.h"
#include "msvcrt/stdlib.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
/*********************************************************************
* getenv (MSVCRT.@)
*/
char *MSVCRT_getenv(const char *name)
{
char *environ = GetEnvironmentStringsA();
char *pp,*pos = NULL;
unsigned int length=strlen(name);
for (pp = environ; (*pp); pp = pp + strlen(pp) +1)
{
pos =strchr(pp,'=');
if ((pos) && ((pos - pp) == length))
{
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if (!strncasecmp(pp,name,length)) break;
}
}
if ((*pp)&& (pos))
{
pp = pos+1;
TRACE("got %s\n",pp);
}
else
pp = 0;
FreeEnvironmentStringsA( environ );
return pp;
}
/*********************************************************************
* _wgetenv (MSVCRT.@)
*/
WCHAR *_wgetenv(const WCHAR *name)
{
WCHAR* environ = GetEnvironmentStringsW();
WCHAR* pp,*pos = NULL;
unsigned int length=strlenW(name);
for (pp = environ; (*pp); pp = pp + strlenW(pp) + 1)
{
pos = strchrW(pp,'=');
if ((pos) && ((pos - pp) == length))
{
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if (!strncmpiW(pp,name,length))
{
pp = pos+1;
TRACE("got %s\n",debugstr_w(pp));
/* can't free pointer since we are returning it */
/* should probably use MSVCRT_wenviron instead */
FIXME( "memory leak\n" );
return pp;
}
}
}
FreeEnvironmentStringsW( environ );
return NULL;
}
/*********************************************************************
* _putenv (MSVCRT.@)
*/
int _putenv(const char *str)
{
char name[256], value[512];
char *dst = name;
int ret;
TRACE("%s\n", str);
if (!str)
return -1;
while (*str && *str != '=')
*dst++ = *str++;
if (!*str++)
return -1;
*dst = '\0';
dst = value;
while (*str)
*dst++ = *str++;
*dst = '\0';
ret = !SetEnvironmentVariableA(name, value[0] ? value : NULL);
/* Update the __p__environ array only when already initialized */
if (MSVCRT__environ)
MSVCRT__environ = msvcrt_SnapshotOfEnvironmentA(MSVCRT__environ);
if (MSVCRT__wenviron)
MSVCRT__wenviron = msvcrt_SnapshotOfEnvironmentW(MSVCRT__wenviron);
return ret;
}
/*********************************************************************
* _wputenv (MSVCRT.@)
*/
int _wputenv(const WCHAR *str)
{
WCHAR name[256], value[512];
WCHAR *dst = name;
int ret;
TRACE("%s\n", debugstr_w(str));
if (!str)
return -1;
while (*str && *str != (WCHAR)L'=')
*dst++ = *str++;
if (!*str++)
return -1;
*dst = (WCHAR)L'\0';
dst = value;
while (*str)
*dst++ = *str++;
*dst = (WCHAR)L'\0';
ret = !SetEnvironmentVariableW(name, value[0] ? value : NULL);
/* Update the __p__environ array only when already initialized */
if (MSVCRT__environ)
MSVCRT__environ = msvcrt_SnapshotOfEnvironmentA(MSVCRT__environ);
if (MSVCRT__wenviron)
MSVCRT__wenviron = msvcrt_SnapshotOfEnvironmentW(MSVCRT__wenviron);
return ret;
}