Subversion Repositories openrisc_me

/* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.

 *

 * Permission to use, copy, modify, and distribute this software

 * is freely granted, provided that this notice is preserved.

 */

#include <errno.h>

#include <sys/types.h>

#include <string.h>

#include <stdlib.h>

#include <envz.h>

#include "buf_findstr.h"

char *

_DEFUN (envz_entry, (envz, envz_len, name),

       const char *envz _AND

       size_t envz_len _AND

       const char *name)

{

  char *buf_ptr = (char *)envz;

  size_t buf_len = envz_len;

  while(buf_len)

    {

      if (_buf_findstr(name, &buf_ptr, &buf_len))

        {

          if (buf_ptr)

            {

              if (*buf_ptr == '=' || *buf_ptr == '\0')

                {

                  buf_ptr--;

                  /* Move buf_ptr back to start of entry. */

                  while(*buf_ptr != '\0' && buf_ptr != envz) buf_ptr--;

                  if(*buf_ptr == '\0')

                    buf_ptr++;

                  return (char *)buf_ptr;

                }

            }

        }

    }

  return 0;

}