1 files changed, 162 insertions, 0 deletions
diff --git a/base/file_util_android.cc b/base/file_util_android.cc
new file mode 100644
index 0000000..59fb2de
--- /dev/null
+++ b/base/file_util_android.cc
@@ -0,0 +1,162 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/file_util.h"
+
+#include <fcntl.h>
+
+#include <string>
+#include <vector>
+
+#include "base/eintr_wrapper.h"
+#include "base/file_path.h"
+#include "base/string_util.h"
+
+// just lifted off bionic, no should find out why it doesn't get linked in
+
+static int _gettemp(char *, int *, int, int);
+
+extern uint32_t  arc4random();
+
+int
+mkstemps(char *path, int slen)
+{
+	int fd;
+
+	return (_gettemp(path, &fd, 0, slen) ? fd : -1);
+}
+
+int
+mkstemp(char *path)
+{
+	int fd;
+
+	return (_gettemp(path, &fd, 0, 0) ? fd : -1);
+}
+
+char *
+mkdtemp(char *path)
+{
+	return(_gettemp(path, (int *)NULL, 1, 0) ? path : (char *)NULL);
+}
+
+char *_mktemp(char *);
+
+char *
+_mktemp(char *path)
+{
+	return(_gettemp(path, (int *)NULL, 0, 0) ? path : (char *)NULL);
+}
+
+__warn_references(mktemp,
+    "warning: mktemp() possibly used unsafely; consider using mkstemp()");
+
+char *
+mktemp(char *path)
+{
+	return(_mktemp(path));
+}
+
+
+static int
+_gettemp(char *path, int *doopen, int domkdir, int slen)
+{
+	char *start, *trv, *suffp;
+	struct stat sbuf;
+	int rval;
+	pid_t pid;
+
+	if (doopen && domkdir) {
+		errno = EINVAL;
+		return(0);
+	}
+
+	for (trv = path; *trv; ++trv)
+		;
+	trv -= slen;
+	suffp = trv;
+	--trv;
+	if (trv < path) {
+		errno = EINVAL;
+		return (0);
+	}
+	pid = getpid();
+	while (trv >= path && *trv == 'X' && pid != 0) {
+		*trv-- = (pid % 10) + '0';
+		pid /= 10;
+	}
+	while (trv >= path && *trv == 'X') {
+		char c;
+
+		pid = (arc4random() & 0xffff) % (26+26);
+		if (pid < 26)
+			c = pid + 'A';
+		else
+			c = (pid - 26) + 'a';
+		*trv-- = c;
+	}
+	start = trv + 1;
+
+	/*
+	 * check the target directory; if you have six X's and it
+	 * doesn't exist this runs for a *very* long time.
+	 */
+	if (doopen || domkdir) {
+		for (;; --trv) {
+			if (trv <= path)
+				break;
+			if (*trv == '/') {
+				*trv = '\0';
+				rval = stat(path, &sbuf);
+				*trv = '/';
+				if (rval != 0)
+					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, 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 (lstat(path, &sbuf))
+			return(errno == ENOENT ? 1 : 0);
+
+		/* tricky little algorithm for backward compatibility */
+		for (trv = start;;) {
+			if (!*trv)
+				return (0);
+			if (*trv == 'Z') {
+				if (trv == suffp)
+					return (0);
+				*trv++ = 'a';
+			} else {
+				if (isdigit(*trv))
+					*trv = 'a';
+				else if (*trv == 'z')	/* inc from z to A */
+					*trv = 'A';
+				else {
+					if (trv == suffp)
+						return (0);
+					++*trv;
+				}
+				break;
+			}
+		}
+	}
+	/*NOTREACHED*/
+}