diff options
author | Jim Meyering <jim@meyering.net> | 2003-08-18 09:44:49 +0000 |
---|---|---|
committer | Jim Meyering <jim@meyering.net> | 2003-08-18 09:44:49 +0000 |
commit | b1b4af8047b2d6c2b2ea0d552969e25f872da675 (patch) | |
tree | ee8166cbc3f75e901def92c7c94473473d360165 /lib/readlink.c | |
parent | 84a9ab5a07427ab8322424cd0c401e847326e7e2 (diff) | |
download | coreutils-b1b4af8047b2d6c2b2ea0d552969e25f872da675.tar.xz |
Sync with gnulib.
Diffstat (limited to 'lib/readlink.c')
-rw-r--r-- | lib/readlink.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/lib/readlink.c b/lib/readlink.c new file mode 100644 index 000000000..c264efd8c --- /dev/null +++ b/lib/readlink.c @@ -0,0 +1,48 @@ +/* Stub for readlink(). + Copyright (C) 2003 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> + +#if !HAVE_READLINK + +/* readlink() substitute for systems that don't have a readlink() function, + such as DJGPP 2.03 and mingw32. */ + +/* The official POSIX return type of readlink() is ssize_t, but since here + we have no declaration in a public header file, we use 'int' as return + type. */ + +int +readlink (const char *path, char *buf, size_t bufsize) +{ + struct stat statbuf; + + /* In general we should use lstat() here, not stat(). But on platforms + without symbolic links lstat() - if it exists - would be equivalent to + stat(), therefore we can use stat(). This saves us a configure check. */ + if (stat (path, &statbuf) >= 0) + errno = EINVAL; + return -1; +} + +#endif |