1 /* THIS FILE HAS BEEN MODIFIED FROM THE ORIGINAL OPENBSD SOURCE */
2 /* Changes: Removed mktemp */
5 * Copyright (c) 1987, 1993
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35 #if !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP)
37 #if defined(LIBC_SCCS) && !defined(lint)
38 static char rcsid[] = "$OpenBSD: mktemp.c,v 1.17 2003/06/02 20:18:37 millert Exp $";
39 #endif /* LIBC_SCCS and not lint */
42 #define open binary_open
43 extern int binary_open();
46 static int _gettemp(char *, int *, int, int);
55 return (_gettemp(path, &fd, 0, slen) ? fd : -1);
64 return (_gettemp(path, &fd, 0, 0) ? fd : -1);
71 return(_gettemp(path, (int *)NULL, 1, 0) ? path : (char *)NULL);
75 _gettemp(path, doopen, domkdir, slen)
81 register char *start, *trv, *suffp;
86 if (doopen && domkdir) {
91 for (trv = path; *trv; ++trv)
101 while (trv >= path && *trv == 'X' && pid != 0) {
102 *trv-- = (pid % 10) + '0';
105 while (trv >= path && *trv == 'X') {
108 pid = (arc4random() & 0xffff) % (26+26);
112 c = (pid - 26) + 'a';
118 * check the target directory; if you have six X's and it
119 * doesn't exist this runs for a *very* long time.
121 if (doopen || domkdir) {
127 rval = stat(path, &sbuf);
131 if (!S_ISDIR(sbuf.st_mode)) {
143 open(path, O_CREAT|O_EXCL|O_RDWR, 0600)) >= 0)
147 } else if (domkdir) {
148 if (mkdir(path, 0700) == 0)
152 } else if (lstat(path, &sbuf))
153 return(errno == ENOENT ? 1 : 0);
155 /* tricky little algorithm for backward compatibility */
156 for (trv = start;;) {
166 else if (*trv == 'z') /* inc from z to A */
180 #endif /* !defined(HAVE_MKDTEMP) || defined(HAVE_STRICT_MKSTEMP) */