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#if !defined(lint) && !defined(DOS)
static char rcsid[] = "$Id: rename.c 761 2007-10-23 22:35:18Z hubert@u.washington.edu $";
#endif
/*
* ========================================================================
* Copyright 2013-2021 Eduardo Chappa
* Copyright 2006 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* ========================================================================
*/
#include <system.h>
#include "err_desc.h"
#include "../charconv/utf8.h"
#include "../charconv/filesys.h"
#include "rename.h"
/*----------------------------------------------------------------------
Rename a file
Args: tmpfname -- Old name of file
fname -- New name of file
Result: File is renamed. Returns 0 on success, else -1 on error
and errno is valid.
----*/
int
rename_file(char *tmpfname, char *fname)
{
#if HAVE_RENAME
return(our_rename(tmpfname, fname));
#else
# if defined(_WINDOWS)
int ret;
/*
* DOS rename doesn't unlink destination for us...
*/
if((ret = our_unlink(fname)) && (errno == EPERM)){
ret = -5;
}
else{
ret = our_rename(tmpfname, fname);
if(ret)
ret = -1;
}
return(ret);
# else
int status;
our_unlink(fname);
if ((status = link(tmpfname, fname)) != 0)
return(status);
our_unlink(tmpfname);
return(0);
# endif
#endif
}
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