path.c File Reference

#include "precomp.h"

Include dependency graph for path.c:

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Macros
#define	ENV_BUFFER_SIZE   1024

Functions
INT	cmd_path (LPTSTR param)

Macro Definition Documentation

ENV_BUFFER_SIZE

#define ENV_BUFFER_SIZE   1024

Definition at line 33 of file path.c.

Function Documentation

cmd_path()

INT cmd_path

(

LPTSTR

param

)

Definition at line 36 of file path.c.

{
    if (!_tcsncmp (param, _T("/?"), 2))
    {
        ConOutResPaging(TRUE,STRING_PATH_HELP1);
        return 0;
    }

    nErrorLevel = 0;

    /* if param is empty, display the PATH environment variable */
    if (!param || !*param)
    {
        DWORD  dwBuffer;
        LPTSTR pszBuffer;

        pszBuffer = (LPTSTR)cmd_alloc (ENV_BUFFER_SIZE * sizeof(TCHAR));
        if (!pszBuffer)
        {
            WARN("Cannot allocate memory for pszBuffer!\n");
            return 1;
        }

        dwBuffer = GetEnvironmentVariable (_T("PATH"), pszBuffer, ENV_BUFFER_SIZE);
        if (dwBuffer == 0)
        {
            cmd_free(pszBuffer);
            ConOutResPrintf(STRING_VOL_HELP2, _T("PATH"));
            return 0;
        }
        else if (dwBuffer > ENV_BUFFER_SIZE)
        {
            LPTSTR pszOldBuffer = pszBuffer;
            pszBuffer = (LPTSTR)cmd_realloc (pszBuffer, dwBuffer * sizeof (TCHAR));
            if (!pszBuffer)
            {
                WARN("Cannot reallocate memory for pszBuffer!\n");
                cmd_free(pszOldBuffer);
                return 1;
            }
            GetEnvironmentVariable (_T("PATH"), pszBuffer, dwBuffer);
        }

        ConOutPrintf(_T("PATH=%s\n"), pszBuffer);
        cmd_free (pszBuffer);

        return 0;
    }

    /* skip leading '=' */
    if (*param == _T('='))
        param++;

    /* set PATH environment variable */
    if (!SetEnvironmentVariable (_T("PATH"), param))
    {
        nErrorLevel = 1;
        return 1;
    }

    return 0;
}

Referenced by RunShell().