70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/* `sln' program to create links between files.
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Copyright (C) 1986, 1989, 1990, 1991, 1993 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Written by Mike Parker and David MacKenzie. */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <errno.h>
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#if !defined(S_ISDIR) && defined(S_IFDIR)
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#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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#endif
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int
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main (int argc, char **argv) {
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struct stat stats;
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if (argc != 3) return 1;
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/* Destination must not be a directory. */
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#if 0
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if (stat (argv [2], &stats) == 0 && S_ISDIR (stats.st_mode))
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{
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return 1;
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}
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#endif
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if (lstat (argv [2], &stats) == 0)
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{
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if (S_ISDIR (stats.st_mode))
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{
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return 1;
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}
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else if (unlink (argv [2]) && errno != ENOENT)
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{
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return 1;
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}
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}
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else if (errno != ENOENT)
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{
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return 1;
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}
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#ifdef S_ISLNK
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if (symlink (argv [1], argv [2]) == 0)
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#else
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if (link (argv [1], argv [2]) == 0)
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#endif
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{
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return 0;
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}
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return 1;
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}
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