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Fix sce_lbn parsing for missing 0x, etc.

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2013-01-09 00:10:52 -08:00
parent 238bee1d94
commit a59fe8eb0f
1 changed files with 22 additions and 8 deletions
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30
Core/FileSystems/ISOFileSystem.cpp
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@@ -27,15 +27,29 @@ const int sectorSize = 2048;
static bool parseLBN(std::string filename, u32 *sectorStart, u32 *readSize)
{
if (filename.substr(0, 8) != "/sce_lbn")
// Looks like: /sce_lbn0x10_size0x100 or /sce_lbn10_size100 (always hex.)
if (filename.compare(0, sizeof("/sce_lbn") - 1, "/sce_lbn") != 0)
return false;
std::string prev = filename;
filename.erase(0, 10);
if (sscanf(filename.c_str(), "%08x", sectorStart) != 1)
WARN_LOG(FILESYS, "Invalid LBN reference: %s", prev.c_str());
filename.erase(0, filename.find("_size") + 7);
if (sscanf(filename.c_str(), "%08x", readSize) != 1)
WARN_LOG(FILESYS, "Incomplete LBN reference: %s", prev.c_str());
size_t pos = sizeof("/sce_lbn") - 1;
const char *filename_c = filename.c_str();
int offset = 0;
if (sscanf(filename_c + pos, "%x%n", sectorStart, &offset) != 1)
WARN_LOG(FILESYS, "Invalid LBN reference: %s", filename_c);
pos += offset;
if (filename.compare(pos, sizeof("_size") - 1, "_size") != 0)
WARN_LOG(FILESYS, "Invalid LBN reference: %s", filename_c);
pos += sizeof("_size") - 1;
offset = 0;
if (sscanf(filename_c + pos, "%x%n", readSize, &offset) != 1)
WARN_LOG(FILESYS, "Invalid LBN reference: %s", filename_c);
pos += offset;
if (filename.size() > pos)
WARN_LOG(FILESYS, "Incomplete LBN reference: %s", filename_c);
return true;
}