getenv.c

Newlib 嵌入式 C库 标准实现代码

/* getenv.c -- Implementation of the getenv() routine
 *
 * Copyright (c) 2004 National Semiconductor Corporation
 *
 * The authors hereby grant permission to use, copy, modify, distribute,
 * and license this software and its documentation for any purpose, provided
 * that existing copyright notices are retained in all copies and that this
 * notice is included verbatim in any distributions. No written agreement,
 * license, or royalty fee is required for any of the authorized uses.
 * Modifications to this software may be copyrighted by their authors
 * and need not follow the licensing terms described here, provided that
 * the new terms are clearly indicated on the first page of each file where
 * they apply.
 */

/* getenv() is implemented as a low-level function, 
   thus we only invoke here the system call.  */
char * getenv (const char *name)
{
  char *_getenv(const char *);

  return (_getenv (name));
}