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