diff options
Diffstat (limited to 'sys-utils/sln.c')
| -rw-r--r-- | sys-utils/sln.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/sys-utils/sln.c b/sys-utils/sln.c new file mode 100644 index 0000000000..257b4342e7 --- /dev/null +++ b/sys-utils/sln.c @@ -0,0 +1,72 @@ +/* `sln' program to create links between files. + Copyright (C) 1986, 1989, 1990, 1991, 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* Written by Mike Parker and David MacKenzie. */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <errno.h> + +#if !defined(S_ISDIR) && defined(S_IFDIR) +#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) +#endif + +int +main (argc, argv) + int argc; + char **argv; +{ + struct stat stats; + + if (argc != 3) return 1; + + /* Destination must not be a directory. */ +#if 0 + if (stat (argv [2], &stats) == 0 && S_ISDIR (stats.st_mode)) + { + return 1; + } +#endif + + if (lstat (argv [2], &stats) == 0) + { + if (S_ISDIR (stats.st_mode)) + { + return 1; + } + else if (unlink (argv [2]) && errno != ENOENT) + { + return 1; + } + } + else if (errno != ENOENT) + { + return 1; + } + +#ifdef S_ISLNK + if (symlink (argv [1], argv [2]) == 0) +#else + if (link (argv [1], argv [2]) == 0) +#endif + { + return 0; + } + + return 1; +} |