28 lines
501 B
C
28 lines
501 B
C
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/* rename.c
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Rename a file to a new name (Unix specific implementation). */
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#include "uucp.h"
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#include "sysdep.h"
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#include <errno.h>
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/* This implementation will not work on directories, but fortunately
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we never want to rename directories. */
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int
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rename (zfrom, zto)
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const char *zfrom;
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const char *zto;
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{
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if (link (zfrom, zto) < 0)
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{
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if (errno != EEXIST)
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return -1;
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if (unlink (zto) < 0
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|| link (zfrom, zto) < 0)
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return -1;
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}
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return unlink (zfrom);
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}
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