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  1. /* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
  2.  *
  3.  * Permission to use, copy, modify, and distribute this software
  4.  * is freely granted, provided that this notice is preserved.
  5.  */
  6.  
  7. #include <errno.h>
  8. #include <sys/types.h>
  9. #include <string.h>
  10. #include <stdlib.h>
  11. #include <envz.h>
  12.  
  13. #include "buf_findstr.h"
  14.  
  15. char *
  16. _DEFUN (envz_get, (envz, envz_len, name),
  17.        const char *envz _AND
  18.        size_t envz_len _AND
  19.        const char *name)
  20. {
  21.   char *buf_ptr = (char *)envz;
  22.   size_t buf_len = envz_len;
  23.  
  24.   while(buf_len)
  25.     {
  26.       if (_buf_findstr(name, &buf_ptr, &buf_len))
  27.         {
  28.           if (*buf_ptr == '=')
  29.             {
  30.               buf_ptr++;
  31.               return (char *)buf_ptr;
  32.             }
  33.           else
  34.             {
  35.               if (*buf_ptr == '\0')
  36.                 /* NULL entry. */
  37.                 return NULL;
  38.             }
  39.         }
  40.     }
  41.   /* No matching entries found. */
  42.   return NULL;
  43. }
  44.