App Header
| CCDL (32Bytes) |
| Import Table (32Bytes) |
| Import String (8Bytes) |
| Export Table (32Bytes) |
| Export String (8Bytes) |
| Raw Table (32Bytes) |
| Raw Binary |
main.c
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
typedef struct {
char ident[4];
uint8_t unknown[20];
uint8_t padding[8];
} __attribute__((__packed__)) _app_ccdl;
typedef struct {
char ident[4];
uint32_t unknown;
uint32_t offset;
uint32_t size;
uint8_t padding[16];
} __attribute__((__packed__)) _app_impt;
typedef struct {
char ident[4];
uint32_t unknown;
uint32_t offset;
uint32_t size;
uint8_t padding[16];
} __attribute__((__packed__)) _app_expt;
typedef struct {
char ident[4];
uint32_t unknown0;
uint32_t offset;
uint32_t size;
uint32_t unknown1;
uint32_t entry;
uint32_t origin;
uint32_t prog_size;
} __attribute__((__packed__)) _app_rawd;
typedef struct {
uint32_t str_offset;
uint32_t unknown[2];
uint32_t offset;
} __attribute__((__packed__)) _app_impt_entry;
typedef struct {
uint32_t str_offset;
uint32_t unknown[2];
uint32_t offset;
} __attribute__((__packed__)) _app_expt_entry;
uint32_t print_table(uint8_t *src, uint32_t off, uint32_t size)
{
uint8_t *p = src + off;
uint32_t str_off = off;
uint32_t cnt, total = size / sizeof(_app_impt_entry);
for (cnt = 0; cnt < total; cnt++) {
if (((_app_impt_entry *)p)->unknown[1] > 0x20000) {
printf(" string: count(0x%x) offset(0x%x)\n", cnt, str_off);
break;
}
p += sizeof(_app_impt_entry);
str_off += sizeof(_app_impt_entry);
}
p = src + off;
for (cnt = 0; cnt < total; cnt++, p += sizeof(_app_impt_entry)) {
if (((_app_impt_entry *)p)->unknown[1] == 0x00000) {
continue;
}
if (((_app_impt_entry *)p)->unknown[1] > 0x20000) {
break;
}
printf(" 0x%x(%s)\n", ((_app_impt_entry *)p)->offset, &src[((_app_impt_entry *)p)->str_offset + str_off]);
}
return str_off;
}
int main(int argc, char** argv)
{
if (argc != 2) {
printf("Usage:\n app2bin xxx.app\n");
return -1;
}
FILE* file = fopen(argv[1], "rb");
if (file == NULL) {
printf("Failed to open app: %s\n", argv[1]);
return -1;
}
fseek(file, 0, SEEK_END);
uintptr_t len = ftell(file);
printf("App length: %d\n", len);
fseek(file, 0, SEEK_SET);
uint8_t* body = (uint8_t *)malloc(len);
if (body == NULL) {
printf("Failed to allocate buffer for reading app\n");
fclose(file);
return -1;
}
fread(body, 1, len, file);
fclose(file);
printf("Parsing App...\n");
_app_ccdl ccdl;
_app_impt impt;
_app_expt expt;
_app_rawd rawd;
uint8_t *ptr = body;
if (memcmp(ptr, "CCDL", 4) != 0) {
printf("Invalid App format (miss CCDL section)\n");
goto err;
}
ptr += sizeof(_app_ccdl);
uint32_t cnt = 0, total = 0;
uint32_t off = ((_app_impt *)ptr)->offset;
uint32_t size = ((_app_impt *)ptr)->size;
if (memcmp(ptr, "IMPT", 4) != 0) {
printf("Invalid App format (miss IMPT section)\n");
goto err;
}
printf("Import offset: 0x%x\n", off);
printf("Import size: 0x%x\n", size);
print_table(body, off, size);
ptr += sizeof(_app_impt);
if (memcmp(ptr, "EXPT", 4) != 0) {
printf("Invalid App format (miss EXPT section)\n");
goto err;
}
off = ((_app_rawd *)ptr)->offset;
size = ((_app_rawd *)ptr)->size;
printf("Export offset: %d\n", off);
printf("Export size: %d\n", size);
print_table(body, off, size);
ptr += sizeof(_app_expt);
if (memcmp(ptr, "RAWD", 4) != 0) {
printf("Invalid App file format (miss RAWD section)\n");
goto err;
}
off = ((_app_rawd *)ptr)->offset;
size = ((_app_rawd *)ptr)->size;
printf("Raw offset: %d\n", off);
printf("Raw size: %d\n", size);
printf("Raw entry: 0x%x\n", ((_app_rawd *)ptr)->entry);
printf("Raw origin: 0x%x\n", ((_app_rawd *)ptr)->origin);
printf("Raw prog_size: %d\n", ((_app_rawd *)ptr)->prog_size);
ptr += sizeof(_app_rawd);
unlink("raw.bin");
int fd = open("raw.bin", O_CREAT | O_WRONLY, S_IRUSR);
if (fd < 0) {
printf("Failed to create raw.bin file\n");
goto err;
}
write(fd, body + off, size);
close(fd);
err:
free(body);
return 0;
}
$ sha1sum 7days.app
33e5a1b7eb4a9329a1f5afea6714759e93c6e115
$ ./app2bin 7days.app
App length: 45732749
Parsing App...
Import offset: 0xa0
Import size: 0x860
string: count(0x48) offset(0x520)
0x80ad4500(abort)
0x80ad4508(printf)
0x80ad4510(sprintf)
0x80ad4518(fprintf)
0x80ad4520(strncasecmp)
0x80ad4528(malloc)
0x80ad4530(realloc)
0x80ad4538(free)
0x80ad4540(fread)
0x80ad4548(fwrite)
0x80ad4550(fseek)
0x80ad4558(LcdGetDisMode)
0x80ad4560(vxGoHome)
0x80ad4568(StartSwTimer)
0x80ad4570(free_irq)
0x80ad4578(fsys_RefreshCache)
0x80ad4580(strlen)
0x80ad4588(_lcd_set_frame)
0x80ad4590(_lcd_get_frame)
0x80ad4598(lcd_get_cframe)
0x80ad45a0(ap_lcd_set_frame)
0x80ad45a8(lcd_flip)
0x80ad45b0(__icache_invalidate_all)
0x80ad45b8(__dcache_writeback_all)
0x80ad45c0(TaskMediaFunStop)
0x80ad45c8(OSCPUSaveSR)
0x80ad45d0(OSCPURestoreSR)
0x80ad45d8(serial_getc)
0x80ad45e0(serial_putc)
0x80ad45e8(_kbd_get_status)
0x80ad45f0(get_game_vol)
0x80ad45f8(_kbd_get_key)
0x80ad4600(fsys_fopen)
0x80ad4608(fsys_fread)
0x80ad4610(fsys_fclose)
0x80ad4618(fsys_fseek)
0x80ad4620(fsys_ftell)
0x80ad4628(fsys_remove)
0x80ad4630(fsys_rename)
0x80ad4638(fsys_ferror)
0x80ad4640(fsys_feof)
0x80ad4648(fsys_fwrite)
0x80ad4650(fsys_findfirst)
0x80ad4658(fsys_findnext)
0x80ad4660(fsys_findclose)
0x80ad4668(fsys_flush_cache)
0x80ad4670(USB_Connect)
0x80ad4678(udc_attached)
0x80ad4680(USB_No_Connect)
0x80ad4688(waveout_open)
0x80ad4690(waveout_close)
0x80ad4698(waveout_close_at_once)
0x80ad46a0(waveout_set_volume)
0x80ad46a8(HP_Mute_sw)
0x80ad46b0(waveout_can_write)
0x80ad46b8(waveout_write)
0x80ad46c0(pcm_can_write)
0x80ad46c8(pcm_ioctl)
0x80ad46d0(OSTimeGet)
0x80ad46d8(OSTimeDly)
0x80ad46e0(OSSemPend)
0x80ad46e8(OSSemPost)
0x80ad46f0(OSSemCreate)
0x80ad46f8(OSTaskCreate)
0x80ad4700(OSSemDel)
0x80ad4708(OSTaskDel)
0x80ad4710(GetTickCount)
0x80ad4718(_sys_judge_event)
0x80ad4720(fsys_fopenW)
0x80ad4728(__to_unicode_le)
0x80ad4730(__to_locale_ansi)
Export offset: 2304
Export size: 64
string: count(0x3) offset(0x930)
0x80ad4824(getext)
0x80ad483c(AppMain)
Raw offset: 2368
Raw size: 1273280
Raw entry: 0x80ad4740
Raw origin: 0x80a00000
Raw prog_size: 1315408