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Description: Revert "Remove a file we haven't built since 2013."
This reverts: https://android-review.googlesource.com/2299260
And it restores support for simg2simg.
.
This reverts commit 8a9495aba66d8274d13a6d10bd5a5c8114c3c799.
Forwarded: not-needed
--- /dev/null
+++ b/system/core/libsparse/simg2simg.cpp
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _FILE_OFFSET_BITS 64
+#define _LARGEFILE64_SOURCE 1
+
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <sparse/sparse.h>
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+void usage() {
+ fprintf(stderr, "Usage: simg2simg <sparse image file> <sparse_image_file> <max_size>\n");
+}
+
+int main(int argc, char* argv[]) {
+ int in;
+ int out;
+ int i;
+ int ret;
+ struct sparse_file* s;
+ int64_t max_size;
+ struct sparse_file** out_s;
+ int files;
+ char filename[4096];
+
+ if (argc != 4) {
+ usage();
+ exit(EXIT_FAILURE);
+ }
+
+ max_size = atoll(argv[3]);
+
+ in = open(argv[1], O_RDONLY | O_BINARY);
+ if (in < 0) {
+ fprintf(stderr, "Cannot open input file %s\n", argv[1]);
+ exit(EXIT_FAILURE);
+ }
+
+ s = sparse_file_import(in, true, false);
+ if (!s) {
+ fprintf(stderr, "Failed to import sparse file\n");
+ exit(EXIT_FAILURE);
+ }
+
+ files = sparse_file_resparse(s, max_size, nullptr, 0);
+ if (files < 0) {
+ fprintf(stderr, "Failed to resparse\n");
+ exit(EXIT_FAILURE);
+ }
+
+ out_s = (struct sparse_file**)calloc(sizeof(struct sparse_file*), files);
+ if (!out_s) {
+ fprintf(stderr, "Failed to allocate sparse file array\n");
+ exit(EXIT_FAILURE);
+ }
+
+ files = sparse_file_resparse(s, max_size, out_s, files);
+ if (files < 0) {
+ fprintf(stderr, "Failed to resparse\n");
+ exit(EXIT_FAILURE);
+ }
+
+ for (i = 0; i < files; i++) {
+ ret = snprintf(filename, sizeof(filename), "%s.%d", argv[2], i);
+ if (ret >= (int)sizeof(filename)) {
+ fprintf(stderr, "Filename too long\n");
+ exit(EXIT_FAILURE);
+ }
+
+ out = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0664);
+ if (out < 0) {
+ fprintf(stderr, "Cannot open output file %s\n", argv[2]);
+ exit(EXIT_FAILURE);
+ }
+
+ ret = sparse_file_write(out_s[i], out, false, true, false);
+ if (ret) {
+ fprintf(stderr, "Failed to write sparse file\n");
+ exit(EXIT_FAILURE);
+ }
+ close(out);
+ }
+
+ close(in);
+
+ exit(EXIT_SUCCESS);
+}
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