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author | Tao Bao <tbao@google.com> | 2016-12-28 19:18:42 +0100 |
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committer | android-build-merger <android-build-merger@google.com> | 2016-12-28 19:18:42 +0100 |
commit | 4e2471d6dd035159f198a9d76d2422e8115ef701 (patch) | |
tree | 3e8544c0a40e1b6c777236166cc88f7954c9500c /applypatch/imgdiff.cpp | |
parent | Merge "tests: Add test coverage for DirUtil." am: f24d2a6b39 (diff) | |
parent | Merge "Add tests for imgdiff." (diff) | |
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Diffstat (limited to 'applypatch/imgdiff.cpp')
-rw-r--r-- | applypatch/imgdiff.cpp | 54 |
1 files changed, 24 insertions, 30 deletions
diff --git a/applypatch/imgdiff.cpp b/applypatch/imgdiff.cpp index 528daf113..18a15a164 100644 --- a/applypatch/imgdiff.cpp +++ b/applypatch/imgdiff.cpp @@ -121,19 +121,19 @@ * information that is stored on the system partition. */ +#include "applypatch/imgdiff.h" + #include <errno.h> -#include <inttypes.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/stat.h> -#include <unistd.h> #include <sys/types.h> +#include <unistd.h> #include <bsdiff.h> +#include <zlib.h> -#include "zlib.h" -#include "imgdiff.h" #include "utils.h" typedef struct { @@ -374,8 +374,7 @@ unsigned char* ReadZip(const char* filename, * return value when done with all the chunks. Returns NULL on * failure. */ -unsigned char* ReadImage(const char* filename, - int* num_chunks, ImageChunk** chunks) { +unsigned char* ReadImage(const char* filename, int* num_chunks, ImageChunk** chunks) { struct stat st; if (stat(filename, &st) != 0) { printf("failed to stat \"%s\": %s\n", filename, strerror(errno)); @@ -403,7 +402,7 @@ unsigned char* ReadImage(const char* filename, *chunks = NULL; while (pos < sz) { - unsigned char* p = img+pos; + unsigned char* p = img + pos; if (sz - pos >= 4 && p[0] == 0x1f && p[1] == 0x8b && @@ -413,8 +412,7 @@ unsigned char* ReadImage(const char* filename, size_t chunk_offset = pos; *num_chunks += 3; - *chunks = static_cast<ImageChunk*>(realloc(*chunks, - *num_chunks * sizeof(ImageChunk))); + *chunks = static_cast<ImageChunk*>(realloc(*chunks, *num_chunks * sizeof(ImageChunk))); ImageChunk* curr = *chunks + (*num_chunks-3); // create a normal chunk for the header. @@ -502,8 +500,7 @@ unsigned char* ReadImage(const char* filename, // the decompression. size_t footer_size = Read4(p-4); if (footer_size != curr[-2].len) { - printf("Error: footer size %zu != decompressed size %zu\n", - footer_size, curr[-2].len); + printf("Error: footer size %zu != decompressed size %zu\n", footer_size, curr[-2].len); free(img); return NULL; } @@ -637,7 +634,11 @@ unsigned char* MakePatch(ImageChunk* src, ImageChunk* tgt, size_t* size) { } } +#if defined(__ANDROID__) + char ptemp[] = "/data/local/tmp/imgdiff-patch-XXXXXX"; +#else char ptemp[] = "/tmp/imgdiff-patch-XXXXXX"; +#endif int fd = mkstemp(ptemp); if (fd == -1) { @@ -793,10 +794,8 @@ void MergeAdjacentNormalChunks(ImageChunk* chunks, int* num_chunks) { *num_chunks = out; } -ImageChunk* FindChunkByName(const char* name, - ImageChunk* chunks, int num_chunks) { - int i; - for (i = 0; i < num_chunks; ++i) { +ImageChunk* FindChunkByName(const char* name, ImageChunk* chunks, int num_chunks) { + for (int i = 0; i < num_chunks; ++i) { if (chunks[i].type == CHUNK_DEFLATE && chunks[i].filename && strcmp(name, chunks[i].filename) == 0) { return chunks+i; @@ -812,11 +811,11 @@ void DumpChunks(ImageChunk* chunks, int num_chunks) { } } -int main(int argc, char** argv) { - int zip_mode = 0; +int imgdiff(int argc, const char** argv) { + bool zip_mode = false; if (argc >= 2 && strcmp(argv[1], "-z") == 0) { - zip_mode = 1; + zip_mode = true; --argc; ++argv; } @@ -880,12 +879,10 @@ int main(int argc, char** argv) { // Verify that the source and target images have the same chunk // structure (ie, the same sequence of deflate and normal chunks). - if (!zip_mode) { - // Merge the gzip header and footer in with any adjacent - // normal chunks. - MergeAdjacentNormalChunks(tgt_chunks, &num_tgt_chunks); - MergeAdjacentNormalChunks(src_chunks, &num_src_chunks); - } + // Merge the gzip header and footer in with any adjacent + // normal chunks. + MergeAdjacentNormalChunks(tgt_chunks, &num_tgt_chunks); + MergeAdjacentNormalChunks(src_chunks, &num_src_chunks); if (num_src_chunks != num_tgt_chunks) { printf("source and target don't have same number of chunks!\n"); @@ -897,8 +894,7 @@ int main(int argc, char** argv) { } for (i = 0; i < num_src_chunks; ++i) { if (src_chunks[i].type != tgt_chunks[i].type) { - printf("source and target don't have same chunk " - "structure! (chunk %d)\n", i); + printf("source and target don't have same chunk structure! (chunk %d)\n", i); printf("source chunks:\n"); DumpChunks(src_chunks, num_src_chunks); printf("target chunks:\n"); @@ -983,8 +979,7 @@ int main(int argc, char** argv) { if (zip_mode) { ImageChunk* src; if (tgt_chunks[i].type == CHUNK_DEFLATE && - (src = FindChunkByName(tgt_chunks[i].filename, src_chunks, - num_src_chunks))) { + (src = FindChunkByName(tgt_chunks[i].filename, src_chunks, num_src_chunks))) { patch_data[i] = MakePatch(src, tgt_chunks+i, patch_size+i); } else { patch_data[i] = MakePatch(src_chunks, tgt_chunks+i, patch_size+i); @@ -1000,8 +995,7 @@ int main(int argc, char** argv) { patch_data[i] = MakePatch(src_chunks+i, tgt_chunks+i, patch_size+i); } - printf("patch %3d is %zu bytes (of %zu)\n", - i, patch_size[i], tgt_chunks[i].source_len); + printf("patch %3d is %zu bytes (of %zu)\n", i, patch_size[i], tgt_chunks[i].source_len); } // Figure out how big the imgdiff file header is going to be, so |