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rename.c
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C/C++ Source or Header
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1995-05-16
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351b
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23 lines
/* rename -- rename a file
This function is in the public domain. */
/* Rename a file. */
#include <errno.h>
int
rename (zfrom, zto)
char *zfrom;
char *zto;
{
if (link (zfrom, zto) < 0)
{
if (errno != EEXIST)
return -1;
if (unlink (zto) < 0
|| link (zfrom, zto) < 0)
return -1;
}
return unlink (zfrom);
}