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/* Copyright (C) 1999 Aladdin Enterprises. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: gp_mktmp.c,v 1.4 2002/02/21 22:24:52 giles Exp $ */
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/* Replacement for missing mktemp */
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#include "stat_.h"
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#include "string_.h"
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/* This procedure simulates mktemp on platforms that don't provide it. */
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char *
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mktemp(char *fname)
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{
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struct stat fst;
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int len = strlen(fname);
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char *end = fname + len - 6;
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if (len < 6 || strcmp(end, "XXXXXX"))
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return (char *)0; /* invalid */
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strcpy(end, "AA.AAA");
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while (stat(fname, &fst) == 0) {
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char *inc = fname + len - 1;
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while (*inc == 'Z' || *inc == '.') {
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if (inc == end)
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return (char *)0; /* failure */
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if (*inc == 'Z')
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*inc = 'A';
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--inc;
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}
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++*inc;
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}
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return fname;
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}
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