lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | * canonicalize.c -- Return a malloc'd string containing the canonical |
| 3 | * absolute name of the named file. The last file name component need |
| 4 | * not exist, and may be a symlink to a nonexistent file. |
| 5 | * Copyright (C) 2009 STMicroelectronics |
| 6 | * Author: Salvatore Cro <salvatore.cro@st.com> |
| 7 | * |
| 8 | * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| 9 | */ |
| 10 | |
| 11 | #include <stdlib.h> |
| 12 | #include <limits.h> |
| 13 | |
| 14 | #ifdef __USE_GNU |
| 15 | |
| 16 | #ifndef PATH_MAX |
| 17 | # ifdef _POSIX_VERSION |
| 18 | # define PATH_MAX _POSIX_PATH_MAX |
| 19 | # else |
| 20 | # ifdef MAXPATHLEN |
| 21 | # define PATH_MAX MAXPATHLEN |
| 22 | # else |
| 23 | # define PATH_MAX 1024 |
| 24 | # endif |
| 25 | # endif |
| 26 | #endif |
| 27 | |
| 28 | char * canonicalize_file_name (const char *name) |
| 29 | { |
| 30 | char *buf = (char *) malloc(PATH_MAX); |
| 31 | |
| 32 | if(unlikely(buf == NULL)) |
| 33 | return NULL; |
| 34 | |
| 35 | *buf='\0'; |
| 36 | return realpath (name, buf); |
| 37 | } |
| 38 | #endif |