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Improve GBA VC save injection

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... see #548
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d0k3 2019-10-23 23:21:42 +02:00 committed by Wolfvak
parent 1889f4fd57
commit 624ac571e4
1 changed files with 11 additions and 5 deletions
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16
arm9/source/utils/nandutil.c
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@ -197,21 +197,27 @@ u32 InjectGbaVcSavegameBuffered(const char* path, const char* path_vcsave, void*
// fix CMAC for NAND partition, rewrite AGBSAVE file
u32 data_size = sizeof(AgbSaveHeader) + agbsave->save_size;
agbsave->times_saved++; // (for compatibility with dual SD save injection)
if (FixAgbSaveCmac(agbsave, NULL, NULL) != 0) return 1;
if (fvx_qwrite(path, agbsave, 0, data_size, NULL) != FR_OK) return 1; // write fail
// fix CMAC for SD partition, take it over to SD
if (strncasecmp(path, "S:/agbsave.bin", 256) == 0) {
char path_sd[64];
u32 slot;
// get the SD save path, check SD save size
snprintf(path_sd, 64, "A:/title/%08lx/%08lx/data/00000001.sav",
getle32((u8*) &(agbsave->title_id) + 4), getle32((u8*) &(agbsave->title_id)));
if (FixAgbSaveCmac(agbsave, NULL, path_sd) != 0) return 1;
// check SD save size, then write both partitions
if ((fvx_stat(path_sd, &fno) != FR_OK) || (fno.fsize != max(AGBSAVE_MAX_SIZE, 2 * data_size)))
return 1; // invalid / non-existant SD save
if (fvx_qwrite(path_sd, agbsave, 0, data_size, NULL) != FR_OK) return 1; // write fail (#0)
if (fvx_qwrite(path_sd, agbsave, data_size, data_size, NULL) != FR_OK) return 1; // write fail (#1)
// inject current slot
slot = (agbsave->times_saved % 2) ? 0 : data_size;
if (FixAgbSaveCmac(agbsave, NULL, path_sd) != 0) return 1;
if (fvx_qwrite(path_sd, agbsave, slot, data_size, NULL) != FR_OK) return 1; // write fail (#0)
// inject backup (previous) slot
slot = ((--(agbsave->times_saved)) % 2) ? 0 : data_size;
if (FixAgbSaveCmac(agbsave, NULL, path_sd) != 0) return 1;
if (fvx_qwrite(path_sd, agbsave, slot, data_size, NULL) != FR_OK) return 1; // write fail (#1)
}
// set CFG_BOOTENV to 0x7 so the save is taken over (not needed anymore)