1 files changed, 0 insertions, 234 deletions

diff --git a/applypatch/imgpatch.c b/applypatch/imgpatch.c
deleted file mode 100644
index 09b0a7397..000000000
--- a/applypatch/imgpatch.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * Copyright (C) 2009 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.
- */
-
-// See imgdiff.c in this directory for a description of the patch file
-// format.
-
-#include <stdio.h>
-#include <sys/cdefs.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <malloc.h>
-#include <unistd.h>
-#include <string.h>
-
-#include "zlib.h"
-#include "mincrypt/sha.h"
-#include "applypatch.h"
-#include "imgdiff.h"
-#include "utils.h"
-
-/*
- * Apply the patch given in 'patch_filename' to the source data given
- * by (old_data, old_size).  Write the patched output to the 'output'
- * file, and update the SHA context with the output data as well.
- * Return 0 on success.
- */
-int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size __unused,
-                    const Value* patch,
-                    SinkFn sink, void* token, SHA_CTX* ctx,
-                    const Value* bonus_data) {
-    ssize_t pos = 12;
-    char* header = patch->data;
-    if (patch->size < 12) {
-        printf("patch too short to contain header\n");
-        return -1;
-    }
-
-    // IMGDIFF2 uses CHUNK_NORMAL, CHUNK_DEFLATE, and CHUNK_RAW.
-    // (IMGDIFF1, which is no longer supported, used CHUNK_NORMAL and
-    // CHUNK_GZIP.)
-    if (memcmp(header, "IMGDIFF2", 8) != 0) {
-        printf("corrupt patch file header (magic number)\n");
-        return -1;
-    }
-
-    int num_chunks = Read4(header+8);
-
-    int i;
-    for (i = 0; i < num_chunks; ++i) {
-        // each chunk's header record starts with 4 bytes.
-        if (pos + 4 > patch->size) {
-            printf("failed to read chunk %d record\n", i);
-            return -1;
-        }
-        int type = Read4(patch->data + pos);
-        pos += 4;
-
-        if (type == CHUNK_NORMAL) {
-            char* normal_header = patch->data + pos;
-            pos += 24;
-            if (pos > patch->size) {
-                printf("failed to read chunk %d normal header data\n", i);
-                return -1;
-            }
-
-            size_t src_start = Read8(normal_header);
-            size_t src_len = Read8(normal_header+8);
-            size_t patch_offset = Read8(normal_header+16);
-
-            ApplyBSDiffPatch(old_data + src_start, src_len,
-                             patch, patch_offset, sink, token, ctx);
-        } else if (type == CHUNK_RAW) {
-            char* raw_header = patch->data + pos;
-            pos += 4;
-            if (pos > patch->size) {
-                printf("failed to read chunk %d raw header data\n", i);
-                return -1;
-            }
-
-            ssize_t data_len = Read4(raw_header);
-
-            if (pos + data_len > patch->size) {
-                printf("failed to read chunk %d raw data\n", i);
-                return -1;
-            }
-            if (ctx) SHA_update(ctx, patch->data + pos, data_len);
-            if (sink((unsigned char*)patch->data + pos,
-                     data_len, token) != data_len) {
-                printf("failed to write chunk %d raw data\n", i);
-                return -1;
-            }
-            pos += data_len;
-        } else if (type == CHUNK_DEFLATE) {
-            // deflate chunks have an additional 60 bytes in their chunk header.
-            char* deflate_header = patch->data + pos;
-            pos += 60;
-            if (pos > patch->size) {
-                printf("failed to read chunk %d deflate header data\n", i);
-                return -1;
-            }
-
-            size_t src_start = Read8(deflate_header);
-            size_t src_len = Read8(deflate_header+8);
-            size_t patch_offset = Read8(deflate_header+16);
-            size_t expanded_len = Read8(deflate_header+24);
-            size_t target_len = Read8(deflate_header+32);
-            int level = Read4(deflate_header+40);
-            int method = Read4(deflate_header+44);
-            int windowBits = Read4(deflate_header+48);
-            int memLevel = Read4(deflate_header+52);
-            int strategy = Read4(deflate_header+56);
-
-            // Decompress the source data; the chunk header tells us exactly
-            // how big we expect it to be when decompressed.
-
-            // Note: expanded_len will include the bonus data size if
-            // the patch was constructed with bonus data.  The
-            // deflation will come up 'bonus_size' bytes short; these
-            // must be appended from the bonus_data value.
-            size_t bonus_size = (i == 1 && bonus_data != NULL) ? bonus_data->size : 0;
-
-            unsigned char* expanded_source = malloc(expanded_len);
-            if (expanded_source == NULL) {
-                printf("failed to allocate %zu bytes for expanded_source\n",
-                       expanded_len);
-                return -1;
-            }
-
-            z_stream strm;
-            strm.zalloc = Z_NULL;
-            strm.zfree = Z_NULL;
-            strm.opaque = Z_NULL;
-            strm.avail_in = src_len;
-            strm.next_in = (unsigned char*)(old_data + src_start);
-            strm.avail_out = expanded_len;
-            strm.next_out = expanded_source;
-
-            int ret;
-            ret = inflateInit2(&strm, -15);
-            if (ret != Z_OK) {
-                printf("failed to init source inflation: %d\n", ret);
-                return -1;
-            }
-
-            // Because we've provided enough room to accommodate the output
-            // data, we expect one call to inflate() to suffice.
-            ret = inflate(&strm, Z_SYNC_FLUSH);
-            if (ret != Z_STREAM_END) {
-                printf("source inflation returned %d\n", ret);
-                return -1;
-            }
-            // We should have filled the output buffer exactly, except
-            // for the bonus_size.
-            if (strm.avail_out != bonus_size) {
-                printf("source inflation short by %zu bytes\n", strm.avail_out-bonus_size);
-                return -1;
-            }
-            inflateEnd(&strm);
-
-            if (bonus_size) {
-                memcpy(expanded_source + (expanded_len - bonus_size),
-                       bonus_data->data, bonus_size);
-            }
-
-            // Next, apply the bsdiff patch (in memory) to the uncompressed
-            // data.
-            unsigned char* uncompressed_target_data;
-            ssize_t uncompressed_target_size;
-            if (ApplyBSDiffPatchMem(expanded_source, expanded_len,
-                                    patch, patch_offset,
-                                    &uncompressed_target_data,
-                                    &uncompressed_target_size) != 0) {
-                return -1;
-            }
-
-            // Now compress the target data and append it to the output.
-
-            // we're done with the expanded_source data buffer, so we'll
-            // reuse that memory to receive the output of deflate.
-            unsigned char* temp_data = expanded_source;
-            ssize_t temp_size = expanded_len;
-            if (temp_size < 32768) {
-                // ... unless the buffer is too small, in which case we'll
-                // allocate a fresh one.
-                free(temp_data);
-                temp_data = malloc(32768);
-                temp_size = 32768;
-            }
-
-            // now the deflate stream
-            strm.zalloc = Z_NULL;
-            strm.zfree = Z_NULL;
-            strm.opaque = Z_NULL;
-            strm.avail_in = uncompressed_target_size;
-            strm.next_in = uncompressed_target_data;
-            ret = deflateInit2(&strm, level, method, windowBits, memLevel, strategy);
-            do {
-                strm.avail_out = temp_size;
-                strm.next_out = temp_data;
-                ret = deflate(&strm, Z_FINISH);
-                ssize_t have = temp_size - strm.avail_out;
-
-                if (sink(temp_data, have, token) != have) {
-                    printf("failed to write %ld compressed bytes to output\n",
-                           (long)have);
-                    return -1;
-                }
-                if (ctx) SHA_update(ctx, temp_data, have);
-            } while (ret != Z_STREAM_END);
-            deflateEnd(&strm);
-
-            free(temp_data);
-            free(uncompressed_target_data);
-        } else {
-            printf("patch chunk %d is unknown type %d\n", i, type);
-            return -1;
-        }
-    }
-
-    return 0;
-}