mirror of
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3f892a8d6b
Adapted from a patch by Jacob S. Preciado. Bring also the code suggestions emitted during review.
101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
/*
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* PATH.C - path internal command.
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*
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*
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* History:
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*
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* 17 Jul 1998 (John P Price)
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* Separated commands into individual files.
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*
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* 27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
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* added config.h include
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*
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* 09-Dec-1998 (Eric Kohl)
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* Added help text ("/?").
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*
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* 18-Jan-1999 (Eric Kohl)
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* Unicode ready!
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*
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* 18-Jan-1999 (Eric Kohl)
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* Redirection safe!
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*
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* 24-Jan-1999 (Eric Kohl)
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* Fixed Win32 environment handling.
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*
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* 30-Apr-2005 (Magnus Olsen <magnus@greatlord.com>)
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* Remove all hardcoded strings in En.rc
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*/
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#include "precomp.h"
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#ifdef INCLUDE_CMD_PATH
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/* size of environment variable buffer */
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#define ENV_BUFFER_SIZE 1024
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INT cmd_path (LPTSTR param)
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{
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if (!_tcsncmp (param, _T("/?"), 2))
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{
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ConOutResPaging(TRUE,STRING_PATH_HELP1);
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return 0;
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}
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nErrorLevel = 0;
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/* if param is empty, display the PATH environment variable */
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if (!param || !*param)
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{
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DWORD dwBuffer;
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LPTSTR pszBuffer;
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pszBuffer = (LPTSTR)cmd_alloc (ENV_BUFFER_SIZE * sizeof(TCHAR));
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if (!pszBuffer)
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{
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WARN("Cannot allocate memory for pszBuffer!\n");
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return 1;
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}
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dwBuffer = GetEnvironmentVariable (_T("PATH"), pszBuffer, ENV_BUFFER_SIZE);
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if (dwBuffer == 0)
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{
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cmd_free(pszBuffer);
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ConOutResPrintf(STRING_VOL_HELP2, _T("PATH"));
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return 0;
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}
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else if (dwBuffer > ENV_BUFFER_SIZE)
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{
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LPTSTR pszOldBuffer = pszBuffer;
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pszBuffer = (LPTSTR)cmd_realloc (pszBuffer, dwBuffer * sizeof (TCHAR));
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if (!pszBuffer)
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{
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WARN("Cannot reallocate memory for pszBuffer!\n");
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cmd_free(pszOldBuffer);
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return 1;
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}
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GetEnvironmentVariable (_T("PATH"), pszBuffer, dwBuffer);
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}
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ConOutPrintf(_T("PATH=%s\n"), pszBuffer);
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cmd_free (pszBuffer);
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return 0;
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}
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/* skip leading '=' */
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if (*param == _T('='))
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param++;
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/* set PATH environment variable */
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if (!SetEnvironmentVariable (_T("PATH"), param))
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{
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nErrorLevel = 1;
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return 1;
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}
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return 0;
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}
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#endif
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/* EOF */
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