/* * rename - rename a file */ /* Copyright (C) 1999 Free Software Foundation, Inc. This file is part of GNU Bash, the Bourne Again SHell. Bash 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. Bash 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 Bash; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ #include <config.h> #if !defined (HAVE_RENAME) #include <bashtypes.h> #include <posixstat.h> #if defined (HAVE_UNISTD_H) # include <unistd.h> #endif #include <errno.h> #include <stdc.h> #ifndef errno extern int errno; #endif int rename (from, to) const char *from, *to; { struct stat fb, tb; if (stat (from, &fb) < 0) return -1; if (stat (to, &tb) < 0) { if (errno != ENOENT) return -1; } else { if (fb.st_dev == tb.st_dev && fb.st_ino == tb.st_ino) return 0; /* same file */ if (unlink (to) < 0 && errno != ENOENT) return -1; } if (link (from, to) < 0) return (-1); if (unlink (from) < 0 && errno != ENOENT) { int e = errno; unlink (to); errno = e; return (-1); } return (0); } #endif /* !HAVE_RENAME */