As a follow-up to his PS3 SCETool v0.2.7 update, today PlayStation 3 homebrew developer Naehrwert has released the source code for a Quick PS3 CoreOS Image Tool via Twitter.
Files included below are the util.h, util.cpp, types.h and main.cpp released under the GPLv2.
Download: Quick PS3 CoreOS Image Tool Code / Quick PS3 CoreOS Image Tool (Compiled) / Quick PS3 CoreOS Image Tool Code (Mirror) / https://github.com/naehrwert
To quote: quick coreos image tool - http://pastie.org/4003488
Code:## util.h /* * Copyright (c) 2012 by naehrwert * This file is released under the GPLv2. */ #ifndef _UTIL_H_ #define _UTIL_H_ #include <stdio.h> #include "types.h" /*! Utility functions. */ u8 *_read_buffer(const s8 *file, u32 *length); int _write_buffer(const s8 *file, u8 *buffer, u32 length); #endifCode:## util.cpp /* * Copyright (c) 2012 by naehrwert * This file is released under the GPLv2. */ #include <stdio.h> #include <stdlib.h> #include "types.h" #include "util.h" u8 *_read_buffer(const s8 *file, u32 *length) { FILE *fp; u32 size; if((fp = fopen(file, "rb")) == NULL) return NULL; fseek(fp, 0, SEEK_END); size = ftell(fp); fseek(fp, 0, SEEK_SET); u8 *buffer = (u8 *)malloc(sizeof(u8) * size); fread(buffer, sizeof(u8), size, fp); if(length != NULL) *length = size; fclose(fp); return buffer; } int _write_buffer(const s8 *file, u8 *buffer, u32 length) { FILE *fp; if((fp = fopen(file, "wb")) == NULL) return 0; /*while(length > 0) { u32 wrlen = 1024; if(length < 1024) wrlen = length; fwrite(buffer, sizeof(u8), wrlen, fp); length -= wrlen; buffer += 1024; }*/ fwrite(buffer, sizeof(u8), length, fp); fclose(fp); return 1; }Code:## types.h /* * Copyright (c) 2012 by naehrwert * This file is released under the GPLv2. */ #ifndef _TYPES_H_ #define _TYPES_H_ typedef char s8; typedef unsigned char u8; typedef short s16; typedef unsigned short u16; typedef int s32; typedef unsigned int u32; #ifdef _WIN32 typedef __int64 s64; typedef unsigned __int64 u64; #else typedef long long int s64; typedef unsigned long long int u64; #endif #define BOOL int #define TRUE 1 #define FALSE 0 //Align. #define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) //Endian swap for u16. #define _ES16(val) \ ((u16)(((((u16)val) & 0xff00) >> 8) | \ ((((u16)val) & 0x00ff) << 8))) //Endian swap for u32. #define _ES32(val) \ ((u32)(((((u32)val) & 0xff000000) >> 24) | \ ((((u32)val) & 0x00ff0000) >> 8 ) | \ ((((u32)val) & 0x0000ff00) << 8 ) | \ ((((u32)val) & 0x000000ff) << 24))) //Endian swap for u64. #define _ES64(val) \ ((u64)(((((u64)val) & 0xff00000000000000ull) >> 56) | \ ((((u64)val) & 0x00ff000000000000ull) >> 40) | \ ((((u64)val) & 0x0000ff0000000000ull) >> 24) | \ ((((u64)val) & 0x000000ff00000000ull) >> 8 ) | \ ((((u64)val) & 0x00000000ff000000ull) << 8 ) | \ ((((u64)val) & 0x0000000000ff0000ull) << 24) | \ ((((u64)val) & 0x000000000000ff00ull) << 40) | \ ((((u64)val) & 0x00000000000000ffull) << 56))) #endifCode:## main.cpp /* * Copyright (c) 2012 by naehrwert * This file is released under the GPLv2. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include "types.h" #include "util.h" /*! Header. */ typedef struct _cos_header { /*! Version maybe. */ u32 version; /*! Entry count. */ u32 entcnt; /*! Image size. */ u64 imgsize; } cos_header_t; static void _es_cos_header_t(cos_header_t *ch) { ch->version = _ES32(ch->version); ch->entcnt = _ES32(ch->entcnt); ch->imgsize = _ES64(ch->imgsize); } static void _print_cos_header_t(FILE *fp, cos_header_t *ch) { fprintf(fp, "CoreOS Header:\n"); fprintf(fp, " Version 0x%08X\n", ch->version); fprintf(fp, " Entry Count 0x%08X\n", ch->entcnt); fprintf(fp, " Image Size 0x%016llX\n", ch->imgsize); } /*! Entry. */ typedef struct _cos_entry { /*! Offset. */ u64 offset; /*! Size. */ u64 size; /*! Name (zero padded). */ s8 name[0x20]; } cos_entry_t; static void _es_cos_entry_t(cos_entry_t *ce) { ce->offset = _ES64(ce->offset); ce->size = _ES64(ce->size); } static void _print_cos_entry_t(FILE *fp, cos_entry_t *ce, u32 idx) { fprintf(fp, "CoreOS Entry %02d:\n", idx); fprintf(fp, " Offset 0x%016llX\n", ce->offset); fprintf(fp, " Size 0x%016llX\n", ce->size); fprintf(fp, " Name %s\n", ce->name); } /*! Context. */ typedef struct _cos_ctxt { /*! Buffer. */ u8 *buffer; /*! Buffer length. */ u32 length; /*! Pointer to header. */ cos_header_t *header; /*! Pointer to entries. */ cos_entry_t *entries; } cos_ctxt_t; cos_ctxt_t *cos_load(const s8 *file) { u32 i; cos_ctxt_t *res; if((res = (cos_ctxt_t *)malloc(sizeof(cos_ctxt_t))) == NULL) return NULL; if((res->buffer = _read_buffer(file, &res->length)) == NULL) { free(res); return NULL; } //Fix header and entries. res->header = (cos_header_t *)res->buffer; res->entries = (cos_entry_t *)(res->buffer + sizeof(cos_header_t)); _es_cos_header_t(res->header); for(i = 0; i < res->header->entcnt; i++) _es_cos_entry_t(&res->entries[i]); return res; } void cos_free(cos_ctxt_t *ctxt) { free(ctxt->buffer); free(ctxt); } void cos_print(cos_ctxt_t *ctxt) { u32 i; _print_cos_header_t(stdout, ctxt->header); for(i = 0; i < ctxt->header->entcnt; i++) _print_cos_entry_t(stdout, &ctxt->entries[i], i); } void cos_unpack(cos_ctxt_t *ctxt, const s8 *base_path) { s8 path[256]; u32 i; for(i = 0; i < ctxt->header->entcnt; i++) { sprintf(path, "%s/%s", base_path, ctxt->entries[i].name); _write_buffer(path, ctxt->buffer + ctxt->entries[i].offset, ctxt->entries[i].size); } } void _print_usage() { printf("costool (c) 2012 by naehrwert\n"); printf("Usage: costool [option] image\n"); printf("Options:\n"); printf(" -i ... Print infos.\n"); printf(" -u ... Unpack.\n"); exit(1); } int main(int argc, char **argv) { cos_ctxt_t *ctxt; if(argc < 3) _print_usage(); if(strcmp(argv[1], "-i") == 0) //Print infos. { ctxt = cos_load(argv[2]); cos_print(ctxt); cos_free(ctxt); } else if(strcmp(argv[1], "-u") == 0) //Unpack. { ctxt = cos_load(argv[2]); cos_unpack(ctxt, "."); cos_free(ctxt); } else { printf("Unknown option.\n"); return 1; } return 0; }
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