--- /dev/null
+#include "winsup.h"
+#include "cygerrno.h"
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+
+#define link_warning(symbol, msg) \
+ asm (".stabs \"" msg "\",30,0,0,0\n\t" \
+ ".stabs \"_" #symbol "\",1,0,0,0\n");
+
+
+static int _gettemp(char *, int *, int);
+static uint32_t arc4random ();
+
+static const char padchar[] =
+"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+
+extern "C" int
+mkstemp(char *path)
+{
+ int fd;
+ return _gettemp(path, &fd, 0) ? fd : -1;
+}
+
+extern "C" char *
+mkdtemp(char *path)
+{
+ return _gettemp(path, NULL, 1) ? path : NULL;
+}
+
+link_warning (mktemp, "the use of `mktemp' is dangerous, better use `mkstemp'")
+link_warning (_imp__mktemp, "the use of `mktemp' is dangerous, better use `mkstemp'")
+
+extern "C" char *
+mktemp(char *path)
+{
+ return _gettemp(path, NULL, 0) ? path : (char *) NULL;
+}
+
+static int
+_gettemp(char *path, int *doopen, int domkdir)
+{
+ char *start, *trv, *suffp;
+ char *pad;
+
+ if (doopen && domkdir)
+ {
+ set_errno (EINVAL);
+ return 0;
+ }
+
+ suffp = trv = strchr (path, '\0');
+ if (--trv < path)
+ {
+ set_errno (EINVAL);
+ return 0;
+ }
+
+ /* Fill space with random characters */
+ while (trv >= path && *trv == 'X')
+ {
+ uint32_t rand = arc4random () % (sizeof (padchar) - 1);
+ *trv-- = padchar[rand];
+ }
+ start = trv + 1;
+
+ /*
+ * check the target directory.
+ */
+ struct __stat64 sbuf;
+ if (doopen != NULL || domkdir)
+ {
+ for (; trv > path; trv--)
+ {
+ if (*trv == '/')
+ {
+ *trv = '\0';
+ int rval = stat64 (path, &sbuf);
+ *trv = '/';
+ if (rval != 0)
+ return 0;
+ if (!S_ISDIR (sbuf.st_mode))
+ {
+ set_errno (ENOTDIR);
+ return 0;
+ }
+ break;
+ }
+ }
+ }
+
+ for (;;)
+ {
+ if (doopen)
+ {
+ if ((*doopen = open (path, O_CREAT | O_EXCL | O_RDWR, 0600)) >= 0)
+ return 1;
+ if (errno != EEXIST)
+ return 0;
+ }
+ else if (domkdir)
+ {
+ if (mkdir (path, 0700) == 0)
+ return 1;
+ if (errno != EEXIST)
+ return 0;
+ }
+ else if (lstat64 (path, &sbuf))
+ return errno == ENOENT;
+
+ /* If we have a collision, cycle through the space of filenames */
+ for (trv = start;;)
+ {
+ if (*trv == '\0' || trv == suffp)
+ return 0;
+ pad = strchr (padchar, *trv);
+ if (pad == NULL || *++pad == '\0')
+ *trv++ = padchar[0];
+ else
+ {
+ *trv++ = *pad;
+ break;
+ }
+ }
+ }
+ /*NOTREACHED*/
+}
+
+static uint32_t
+arc4random ()
+{
+ union
+ {
+ uint32_t rand;
+ char buf[sizeof (int) / 8];
+ } r;
+ int fd = open ("/dev/urandom", O_RDONLY);
+ read (fd, r.buf, 4);
+ close (fd);
+ return r.rand;
+}
+
+/*
+* Copyright (c) 1987, 1993
+* The Regents of the University of California. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+* 1. Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* 2. Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in the
+* documentation and/or other materials provided with the distribution.
+* 3. All advertising materials mentioning features or use of this software
+* must display the following acknowledgement:
+* This product includes software developed by the University of
+* California, Berkeley and its contributors.
+* 4. Neither the name of the University nor the names of its contributors
+* may be used to endorse or promote products derived from this software
+* without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+* SUCH DAMAGE.
+*/
git://sourceware.org / newlib-cygwin.git / commitdiff