| /* getenv.c for uClibc |
| * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> |
| * |
| * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| */ |
| |
| #include <string.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| |
| |
| /* IEEE Std 1003.1-2001 says getenv need not be thread safe, so |
| * don't bother locking access to __environ */ |
| char *getenv(const char *var) |
| { |
| int len; |
| char **ep; |
| |
| if (!(ep=__environ)) |
| return NULL; |
| len = strlen(var); |
| while(*ep) { |
| if (memcmp(var, *ep, len) == 0 && (*ep)[len] == '=') { |
| return *ep + len + 1; |
| } |
| ep++; |
| } |
| return NULL; |
| } |
| libc_hidden_def(getenv) |