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Add manifest support to -I

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This commit is contained in:
Alcaro 2017-05-17 16:55:48 +02:00
parent ef813f6ce7
commit 37db058e14
4 changed files with 50 additions and 3 deletions
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45
flips.cpp
View File

@ -839,7 +839,7 @@ struct errorinfo CreatePatch(LPCWSTR inromname, LPCWSTR outromname, enum patchty
return errinf;
}
int patchinfo(LPCWSTR patchname)
int patchinfo(LPCWSTR patchname, struct manifestinfo * manifestinfo)
{
GUIClaimConsole();
@ -860,6 +860,28 @@ int patchinfo(LPCWSTR patchname)
return bpserrors[info.error].level;
}
struct mem meta = {};
if (info.meta_size)
{
meta.len = info.meta_size;
meta.ptr = (uint8_t*)malloc(info.meta_size);
patch->read(meta.ptr, info.meta_start, info.meta_size);
if (manifestinfo->required)
{
if (manifestinfo->name)
{
filewrite::write(manifestinfo->name, meta);
}
else
{
fwrite(meta.ptr, 1,meta.len, stdout);
free(meta.ptr);
return 0;
}
}
}
LPCWSTR inromname = FindRomForPatch(patch, NULL);
#ifdef FLIPS_WINDOWS
#define z "I"
@ -876,6 +898,25 @@ int patchinfo(LPCWSTR patchname)
//Windows MulDiv could also work, but it's kinda nonportable.
//printf("Change index: %i / 1000\n", (int)(info.change_num / (float)info.change_denom * 1000));
if (info.meta_size)
{
printf("Metadata: %" z "u bytes:\n", info.meta_size);
char* meta_iter = (char*)meta.ptr;
char* meta_end = meta_iter + meta.len;
for (int i=0;i<3;i++)
{
int n_chars = meta_end-meta_iter;
if (n_chars > 75) n_chars = 75;
char* nextline = (char*)memchr(meta_iter, '\n', n_chars);
if (nextline && nextline-meta_iter < n_chars) n_chars = nextline-meta_iter;
if (!nextline && !n_chars) break; // wipe trailing linebreaks
printf(" %.*s\n", n_chars, meta_iter);
if (!nextline) break;
meta_iter = nextline+1;
}
}
free(meta.ptr);
return 0;
}
puts("No information available for this patch type");
@ -1115,7 +1156,7 @@ int flipsmain(int argc, WCHAR * argv[])
case a_info:
{
if (numargs!=1) usage();
return patchinfo(arg[0]);
return patchinfo(arg[0], &manifestinfo);
}
}
return 99;//doesn't happen

2
global.h
View File

@ -33,7 +33,7 @@ public:
virtual size_t len() = 0;
virtual bool read(uint8_t* target, size_t start, size_t len) = 0;
//these two add sizeof(WCHAR) 00s after the actual data, so you can cast it to LPCWSTR (assuming it's aligned)
//these two add sizeof(WCHAR) 00s after the actual data, so you can cast it to LPCWSTR
static struct mem read(LPCWSTR filename); // provided by Flips core
struct mem read(); // provided by Flips core

3
libbps.cpp
View File

@ -410,6 +410,9 @@ struct bpsinfo bps_get_info(file* patch, bool changefrac)
if (!decodenum(patchdat, ret.size_in)) error(bps_too_big);
if (!decodenum(patchdat, ret.size_out)) error(bps_too_big);
if (!decodenum(patchdat, ret.meta_size)) error(bps_too_big);
ret.meta_start = patchdat - top;
uint8_t checksums[12];
if (!patch->read(checksums, len-12, 12)) error(bps_io);
ret.crc_in = read32(checksums+0);

3
libbps.h
View File

@ -74,6 +74,9 @@ struct bpsinfo {
uint32_t crc_out;
uint32_t crc_patch;
size_t meta_start;
size_t meta_size;
//Tells approximately how much of the input ROM is changed compared to the output ROM.
//It's quite heuristic. The algorithm may change with or without notice.
//As of writing, I believe this is accurate to 2 significant digits in base 10.