usbloadergx/source/usbloader/playlog.c
dimok321 973d8b2005 *Fixed compile error
*Converted every 4 spaces to a tab to make the source consistent on those
2011-07-25 22:28:22 +00:00

164 lines
3.0 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
PLAYLOG.C
This code allows to modify play_rec.dat in order to store the
game time in Wii's log correctly.
by Marc
Thanks to tueidj for giving me some hints on how to do it :)
Most of the code was taken from here:
http://forum.wiibrew.org/read.php?27,22130
Modified by Dimok
*/
#include <stdio.h>
#include <string.h>
#include <ogcsys.h>
#include <malloc.h>
#include "gecko.h"
#include "utils/tools.h"
#define SECONDS_TO_2000 946684800LL
#define TICKS_PER_SECOND 60750000LL
//! Should be 32 byte aligned
static const char PLAYRECPATH[] ATTRIBUTE_ALIGN(32) = "/title/00000001/00000002/data/play_rec.dat";
typedef struct _PlayRec
{
u32 checksum;
union
{
u32 data[31];
struct
{
u16 name[42];
u64 ticks_boot;
u64 ticks_last;
char title_id[6];
char unknown[18];
} ATTRIBUTE_PACKED;
};
} PlayRec;
// Thanks to Dr. Clipper
static u64 getWiiTime(void)
{
time_t uTime = time(NULL);
return TICKS_PER_SECOND * (uTime - SECONDS_TO_2000);
}
int Playlog_Create(void)
{
s32 fd = IOS_Open(PLAYRECPATH, IPC_OPEN_RW);
if(fd >= 0)
{
//exists
IOS_Close(fd);
return 0;
}
ISFS_Initialize();
//In case the play_rec.dat wasn´t found create one and try again
int ret = ISFS_CreateFile(PLAYRECPATH, 0, 3, 3, 3);
if(ret >= 0)
ISFS_SetAttr(PLAYRECPATH, 0x1000, 1, 0, 3, 3, 3);
ISFS_Deinitialize();
return ret;
}
int Playlog_Update(const char * ID, const u16 * title)
{
if(!ID || !title)
return -1;
s32 fd = -1, res = -1;
u32 sum = 0;
u8 i;
//Open play_rec.dat
fd = IOS_Open(PLAYRECPATH, IPC_OPEN_RW);
if(fd == -106)
{
//In case the play_rec.dat wasn´t found create one and try again
int ret = Playlog_Create();
if(ret < 0)
return ret;
fd = IOS_Open(PLAYRECPATH, IPC_OPEN_RW);
}
if(fd < 0)
return res;
PlayRec * playrec_buf = memalign(32, ALIGN32(sizeof(PlayRec))); //! Should be 32 byte aligned
if(!playrec_buf)
{
IOS_Close(fd);
return res;
}
memset(playrec_buf, 0, sizeof(PlayRec));
u64 stime = getWiiTime();
playrec_buf->ticks_boot = stime;
playrec_buf->ticks_last = stime;
//Update channel name and ID
memcpy(playrec_buf->name, title, 84);
memcpy(playrec_buf->title_id, ID, 6);
//Calculate and update checksum
for(i = 0; i < 31; i++)
sum += playrec_buf->data[i];
playrec_buf->checksum = sum;
//Write play_rec.dat
if(IOS_Write(fd, playrec_buf, sizeof(PlayRec)) == sizeof(PlayRec))
res = 0;
IOS_Close(fd);
free(playrec_buf);
return res;
}
int Playlog_Delete(void)
{
s32 res = -1;
//Open play_rec.dat
s32 fd = IOS_Open(PLAYRECPATH, IPC_OPEN_RW);
if(fd < 0)
return fd;
PlayRec * playrec_buf = memalign(32, ALIGN32(sizeof(PlayRec)));
if(!playrec_buf)
goto cleanup;
//Read play_rec.dat
if(IOS_Read(fd, playrec_buf, sizeof(PlayRec)) != sizeof(PlayRec))
goto cleanup;
if(IOS_Seek(fd, 0, 0) < 0)
goto cleanup;
// invalidate checksum
playrec_buf->checksum = 0;
if(IOS_Write(fd, playrec_buf, sizeof(PlayRec)) != sizeof(PlayRec))
goto cleanup;
res = 0;
cleanup:
free(playrec_buf);
IOS_Close(fd);
return res;
}