155 static void allocate(size_t size, uint8_t** buffer, size_t* buffer_alloc) {  in allocate()  argument
159     free(*buffer);  in allocate()
161     *buffer = (uint8_t*) malloc(size);  in allocate()
162     if (*buffer == NULL) {  in allocate()
292 static int ReadBlocks(RangeSet* src, uint8_t* buffer, int fd) {  in ReadBlocks()  argument
297     if (!src || !buffer) {  in ReadBlocks()
308         if (read_all(fd, buffer + p, size) == -1) {  in ReadBlocks()
318 static int WriteBlocks(RangeSet* tgt, uint8_t* buffer, int fd) {  in WriteBlocks()  argument
323     if (!tgt || !buffer) {  in WriteBlocks()
334         if (write_all(fd, buffer + p, size) == -1) {  in WriteBlocks()
355                                uint8_t** buffer, size_t* buffer_alloc, int fd) {  in LoadSrcTgtVersion1()  argument
367     allocate(src->size * BLOCKSIZE, buffer, buffer_alloc);  in LoadSrcTgtVersion1()
368     rc = ReadBlocks(src, *buffer, fd);  in LoadSrcTgtVersion1()
375 static int VerifyBlocks(const char *expected, const uint8_t *buffer,  in VerifyBlocks()  argument
381     if (!expected || !buffer) {  in VerifyBlocks()
385     SHA_hash(buffer, blocks * BLOCKSIZE, digest);  in VerifyBlocks()
556 static int LoadStash(const char* base, const char* id, int verify, int* blocks, uint8_t** buffer,  in LoadStash()  argument
565     if (!base || !id || !buffer || !buffer_alloc) {  in LoadStash()
602     allocate(st.st_size, buffer, buffer_alloc);  in LoadStash()
604     if (read_all(fd, *buffer, st.st_size) == -1) {  in LoadStash()
610     if (verify && VerifyBlocks(id, *buffer, *blocks, 1) != 0) {  in LoadStash()
630 static int WriteStash(const char* base, const char* id, int blocks, uint8_t* buffer,  in WriteStash()  argument
640     if (base == NULL || buffer == NULL) {  in WriteStash()
681     if (write_all(fd, buffer, blocks * BLOCKSIZE) == -1) {  in WriteStash()
815 static int SaveStash(const char* base, char** wordsave, uint8_t** buffer, size_t* buffer_alloc,  in SaveStash()  argument
821     if (!wordsave || !buffer || !buffer_alloc || !isunresumable) {  in SaveStash()
832     if (usehash && LoadStash(base, id, 1, &blocks, buffer, buffer_alloc, 0) == 0) {  in SaveStash()
839     if (LoadSrcTgtVersion1(wordsave, NULL, &blocks, buffer, buffer_alloc, fd) == -1) {  in SaveStash()
843     if (usehash && VerifyBlocks(id, *buffer, blocks, 1) != 0) {  in SaveStash()
853     return WriteStash(base, id, blocks, *buffer, 0, NULL);  in SaveStash()
909                                uint8_t** buffer, size_t* buffer_alloc, int fd,  in LoadSrcTgtVersion2()  argument
928     allocate(*src_blocks * BLOCKSIZE, buffer, buffer_alloc);  in LoadSrcTgtVersion2()
935         res = ReadBlocks(src, *buffer, fd);  in LoadSrcTgtVersion2()
954         MoveRange(*buffer, locs, *buffer);  in LoadSrcTgtVersion2()
977         MoveRange(*buffer, locs, stash);  in LoadSrcTgtVersion2()
1004     uint8_t* buffer;  member
1056     if (LoadSrcTgtVersion2(&params->cpos, tgt, src_blocks, &params->buffer, &params->bufsize,  in LoadSrcTgtVersion3()
1078     if (VerifyBlocks(srchash, params->buffer, *src_blocks, 1) == 0) {  in LoadSrcTgtVersion3()
1085             if (WriteStash(params->stashbase, srchash, *src_blocks, params->buffer, 1,  in LoadSrcTgtVersion3()
1102     if (*overlap && LoadStash(params->stashbase, srchash, 1, NULL, &params->buffer,  in LoadSrcTgtVersion3()
1135         status = LoadSrcTgtVersion1(&params->cpos, &tgt, &blocks, &params->buffer,  in PerformCommandMove()
1138         status = LoadSrcTgtVersion2(&params->cpos, &tgt, &blocks, &params->buffer,  in PerformCommandMove()
1159             if (WriteBlocks(tgt, params->buffer, params->fd) == -1) {  in PerformCommandMove()
1189     return SaveStash(params->stashbase, &params->cpos, &params->buffer, &params->bufsize,  in PerformCommandStash()
1227     allocate(BLOCKSIZE, &params->buffer, &params->bufsize);  in PerformCommandZero()
1228     memset(params->buffer, 0, BLOCKSIZE);  in PerformCommandZero()
1237                 if (write_all(params->fd, params->buffer, BLOCKSIZE) == -1) {  in PerformCommandZero()
1349         status = LoadSrcTgtVersion1(&params->cpos, &tgt, &blocks, &params->buffer,  in PerformCommandDiff()
1352         status = LoadSrcTgtVersion2(&params->cpos, &tgt, &blocks, &params->buffer,  in PerformCommandDiff()
1387                 ApplyImagePatch(params->buffer, blocks * BLOCKSIZE, &patch_value,  in PerformCommandDiff()
1390                 ApplyBSDiffPatch(params->buffer, blocks * BLOCKSIZE, &patch_value,  in PerformCommandDiff()
1765     if (params.buffer) {  in PerformBlockImageUpdate()
1766         free(params.buffer);  in PerformBlockImageUpdate()
1913     uint8_t buffer[BLOCKSIZE];  in RangeSha1Fn()  local
1927             if (read_all(fd, buffer, BLOCKSIZE) == -1) {  in RangeSha1Fn()
1933             SHA_update(&ctx, buffer, BLOCKSIZE);  in RangeSha1Fn()