1 /* rename.c -- BSD compatible directory function for System V
2 Copyright (C) 1988, 1990 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details. */
18 #include <sys/types.h>
25 /* Rename file FROM to file TO.
26 Return 0 if successful, -1 if not. */
33 struct stat from_stats;
36 if (stat (from, &from_stats) == 0)
38 /* We don't check existence_error because the systems which need it
40 if (CVS_UNLINK (to) && errno != ENOENT)
42 if ((from_stats.st_mode & S_IFMT) == S_IFDIR)
45 /* I don't think MVDIR ever gets defined, but I don't think
46 it matters, because I don't think CVS ever calls rename()
49 /* Need a setuid root process to link and unlink directories. */
54 error (1, errno, "cannot fork");
57 execl (MVDIR, "mvdir", from, to, (char *) 0);
58 error (255, errno, "cannot run `%s'", MVDIR);
60 default: /* Parent. */
61 while (wait (&status) != pid)
64 errno = 0; /* mvdir printed the system error message. */
65 return status != 0 ? -1 : 0;
68 error (1, 0, "internal error: cannot move directories");
73 /* We don't check existence_error because the systems which need it
75 if (link (from, to) == 0 && (CVS_UNLINK (from) == 0 || errno == ENOENT))