| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #ifndef _STDLIB_H |
| #error "Never include this file directly; instead, include <stdlib.h>" |
| #endif |
| |
| #if defined(__BIONIC_FORTIFY) |
| #define __realpath_buf_too_small_str \ |
| "'realpath' output parameter must be NULL or a pointer to a buffer with >= PATH_MAX bytes" |
| |
| /* PATH_MAX is unavailable without polluting the namespace, but it's always 4096 on Linux */ |
| #define __PATH_MAX 4096 |
| |
| char* realpath(const char* path, char* resolved) |
| __clang_error_if(__bos(resolved) != __BIONIC_FORTIFY_UNKNOWN_SIZE && |
| __bos(resolved) < __PATH_MAX, __realpath_buf_too_small_str) |
| __clang_error_if(!path, "'realpath': NULL path is never correct; flipped arguments?"); |
| /* No need for a definition; the only issues we can catch are at compile-time. */ |
| |
| #undef __PATH_MAX |
| #undef __realpath_buf_too_small_str |
| #endif /* defined(__BIONIC_FORTIFY) */ |