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Last change
on this file since 2393 was 2, checked in by bird, 23 years ago |
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Initial revision
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-
Property cvs2svn:cvs-rev
set to
1.1
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Property svn:eol-style
set to
native
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Property svn:executable
set to
*
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File size:
621 bytes
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| 1 | /* rename -- rename a file
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| 2 | This function is in the public domain. */
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| 3 |
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| 4 | /*
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| 5 |
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| 6 | @deftypefn Supplemental int rename (const char *@var{old}, const char *@var{new})
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| 7 |
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| 8 | Renames a file from @var{old} to @var{new}. If @var{new} already
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| 9 | exists, it is removed.
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| 10 |
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| 11 | @end deftypefn
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| 12 |
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| 13 | */
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| 14 |
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| 15 | #ifdef HAVE_CONFIG_H
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| 16 | #include "config.h"
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| 17 | #endif
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| 18 | #include <errno.h>
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| 19 | #ifdef HAVE_UNISTD_H
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| 20 | #include <unistd.h>
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| 21 | #endif
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| 22 |
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| 23 | int
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| 24 | rename (zfrom, zto)
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| 25 | char *zfrom;
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| 26 | char *zto;
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| 27 | {
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| 28 | if (link (zfrom, zto) < 0)
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| 29 | {
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| 30 | if (errno != EEXIST)
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| 31 | return -1;
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| 32 | if (unlink (zto) < 0
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| 33 | || link (zfrom, zto) < 0)
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| 34 | return -1;
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| 35 | }
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| 36 | return unlink (zfrom);
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| 37 | }
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