1 files changed, 149 insertions, 0 deletions
diff --git a/security/nss/lib/dbm/src/mktemp.c b/security/nss/lib/dbm/src/mktemp.c
new file mode 100644
index 0000000000..b668ece182
--- /dev/null
+++ b/security/nss/lib/dbm/src/mktemp.c
@@ -0,0 +1,149 @@
+/*
+ * 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. ***REMOVED*** - see
+ *    ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)mktemp.c    8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+
+#ifdef macintosh
+#include <unix.h>
+#else
+#include <sys/types.h>
+#include <sys/stat.h>
+#endif
+#include <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <ctype.h>
+#include "mcom_db.h"
+
+#ifndef _WINDOWS
+#include <unistd.h>
+#endif
+
+#ifdef _WINDOWS
+#include <process.h>
+#include "winfile.h"
+#endif
+
+static int _gettemp(char *path, register int *doopen, int extraFlags);
+
+int
+mkstemp(char *path)
+{
+#ifdef XP_OS2
+    FILE *temp = tmpfile();
+
+    return (temp ? fileno(temp) : -1);
+#else
+    int fd;
+
+    return (_gettemp(path, &fd, 0) ? fd : -1);
+#endif
+}
+
+int
+mkstempflags(char *path, int extraFlags)
+{
+    int fd;
+
+    return (_gettemp(path, &fd, extraFlags) ? fd : -1);
+}
+
+/* NB: This routine modifies its input string, and does not always restore it.
+** returns 1 on success, 0 on failure.
+*/
+static int
+_gettemp(char *path, register int *doopen, int extraFlags)
+{
+    register char *start, *trv;
+    struct stat sbuf;
+    unsigned int pid;
+
+    pid = getpid();
+    for (trv = path; *trv; ++trv)
+        ; /* extra X's get set to 0's */
+    while (*--trv == 'X') {
+        *trv = (pid % 10) + '0';
+        pid /= 10;
+    }
+
+    /*
+     * check the target directory; if you have six X's and it
+     * doesn't exist this runs for a *very* long time.
+     */
+    for (start = trv + 1;; --trv) {
+        char saved;
+        if (trv <= path)
+            break;
+        saved = *trv;
+        if (saved == '/' || saved == '\\') {
+            int rv;
+            *trv = '\0';
+            rv = stat(path, &sbuf);
+            *trv = saved;
+            if (rv)
+                return (0);
+            if (!S_ISDIR(sbuf.st_mode)) {
+                errno = ENOTDIR;
+                return (0);
+            }
+            break;
+        }
+    }
+
+    for (;;) {
+        if (doopen) {
+            if ((*doopen =
+                     open(path, O_CREAT | O_EXCL | O_RDWR | extraFlags, 0600)) >= 0)
+                return (1);
+            if (errno != EEXIST)
+                return (0);
+        } else if (stat(path, &sbuf))
+            return (errno == ENOENT ? 1 : 0);
+
+        /* tricky little algorithm for backward compatibility */
+        for (trv = start;;) {
+            if (!*trv)
+                return (0);
+            if (*trv == 'z')
+                *trv++ = 'a';
+            else {
+                if (isdigit(*trv))
+                    *trv = 'a';
+                else
+                    ++*trv;
+                break;
+            }
+        }
+    }
+    /*NOTREACHED*/
+}