85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
|
/***
|
||
|
|
*wtombenv.c - convert wide environment block to multibyte
|
||
|
|
*
|
||
|
|
* Copyright (c) 1993-2001, Microsoft Corporation. All rights reserved.
|
||
|
|
*
|
||
|
|
*Purpose:
|
||
|
|
* defines __wtomb_environ(). Create a multibyte equivalent of
|
||
|
|
* an existing wide character environment block.
|
||
|
|
*
|
||
|
|
*Revision History:
|
||
|
|
* 11-30-93 CFW initial version
|
||
|
|
* 02-07-94 CFW POSIXify.
|
||
|
|
* 01-10-95 CFW Debug CRT allocs.
|
||
|
|
* 08-28-98 GJF Use CP_ACP instead of CP_OEMCP.
|
||
|
|
*
|
||
|
|
*******************************************************************************/
|
||
|
|
|
||
|
|
#ifndef _POSIX_
|
||
|
|
|
||
|
|
#include <windows.h>
|
||
|
|
#include <cruntime.h>
|
||
|
|
#include <internal.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <dbgint.h>
|
||
|
|
|
||
|
|
/***
|
||
|
|
*__wtomb_environ - copy wide environment block to multibyte environment block
|
||
|
|
*
|
||
|
|
*Purpose:
|
||
|
|
* Create a multibyte equivalent of an existing wide character
|
||
|
|
* environment block.
|
||
|
|
*
|
||
|
|
*Entry:
|
||
|
|
* Assume _wenviron (global pointer) points to existing wide
|
||
|
|
* environment block.
|
||
|
|
*
|
||
|
|
*Exit:
|
||
|
|
* If success, every wide environment variable has been added to
|
||
|
|
* the multibyte environment block and returns 0.
|
||
|
|
* If failure, returns -1.
|
||
|
|
*
|
||
|
|
*Exceptions:
|
||
|
|
* If space cannot be allocated, returns -1.
|
||
|
|
*
|
||
|
|
*******************************************************************************/
|
||
|
|
|
||
|
|
int __cdecl __wtomb_environ (
|
||
|
|
void
|
||
|
|
)
|
||
|
|
{
|
||
|
|
char *envp;
|
||
|
|
wchar_t **wenvp = _wenviron;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* For every environment variable in the multibyte environment,
|
||
|
|
* convert it and add it to the wide environment.
|
||
|
|
*/
|
||
|
|
|
||
|
|
while (*wenvp)
|
||
|
|
{
|
||
|
|
int size;
|
||
|
|
|
||
|
|
/* find out how much space is needed */
|
||
|
|
if ((size = WideCharToMultiByte(CP_ACP, 0, *wenvp, -1, NULL, 0, NULL, NULL)) == 0)
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
/* allocate space for variable */
|
||
|
|
if ((envp = (char *) _malloc_crt(size * sizeof(char))) == NULL)
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
/* convert it */
|
||
|
|
if (WideCharToMultiByte(CP_ACP, 0, *wenvp, -1, envp, size, NULL, NULL) == 0)
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
/* set it - this is not primary call, so set primary == 0 */
|
||
|
|
__crtsetenv(envp, 0);
|
||
|
|
|
||
|
|
wenvp++;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* _POSIX_ */
|