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Annotation of GNUtools/libg++/libiberty/rename.c, revision 1.1.1.1

1.1       root        1: /* rename -- rename a file
                      2:    Copyright (C) 1992 Free Software Foundation, Inc.
                      3: 
                      4: This file is part of the libiberty library.
                      5: Libiberty is free software; you can redistribute it and/or
                      6: modify it under the terms of the GNU Library General Public
                      7: License as published by the Free Software Foundation; either
                      8: version 2 of the License, or (at your option) any later version.
                      9: 
                     10: Libiberty is distributed in the hope that it will be useful,
                     11: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     13: Library General Public License for more details.
                     14: 
                     15: You should have received a copy of the GNU Library General Public
                     16: License along with libiberty; see the file COPYING.LIB.  If
                     17: not, write to the Free Software Foundation, Inc., 675 Mass Ave,
                     18: Cambridge, MA 02139, USA.  */
                     19: 
                     20: /* Rename a file.  */
                     21: 
                     22: #include <errno.h>
                     23: 
                     24: int
                     25: rename (zfrom, zto)
                     26:      char *zfrom;
                     27:      char *zto;
                     28: {
                     29:   if (link (zfrom, zto) < 0)
                     30:     {
                     31:       if (errno != EEXIST)
                     32:        return -1;
                     33:       if (unlink (zto) < 0
                     34:          || link (zfrom, zto) < 0)
                     35:        return -1;
                     36:     }
                     37:   return unlink (zfrom);
                     38: }

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