reactos/lib/sdk/crt/stdlib/getenv.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS system libraries
   4  * FILE:        lib/crt/??????
   5  * PURPOSE:     Unknown
   6  * PROGRAMER:   Unknown
   7  * UPDATE HISTORY:
   8  *              25/11/05: Added license header
   9  */
  10
  11 #include <precomp.h>
  12
  13 #define NDEBUG
  14 #include <internal/debug.h>
  15
  16 #undef environ
  17
  18 /*
  19  * @implemented
  20  */
  21 char *getenv(const char *name)
  22 {
  23    char **environ;
  24    unsigned int length = strlen(name);
  25
  26    for (environ = *__p__environ(); *environ; environ++)
  27    {
  28       char *str = *environ;
  29       char *pos = strchr(str,'=');
  30       if (pos && ((unsigned int)(pos - str) == length) && !_strnicmp(str, name, length))
  31          return pos + 1;
  32    }
  33    return NULL;
  34 }
  35
  36 /*
  37  * @implemented
  38  */
  39 wchar_t *_wgetenv(const wchar_t *name)
  40 {
  41    wchar_t **environ;
  42    unsigned int length = wcslen(name);
  43
  44    for (environ = *__p__wenviron(); *environ; environ++)
  45    {
  46       wchar_t *str = *environ;
  47       wchar_t *pos = wcschr(str, L'=');
  48       if (pos && ((unsigned int)(pos - str) == length) && !_wcsnicmp(str, name, length))
  49          return pos + 1;
  50    }
  51    return NULL;
  52 }