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Report any attempt to read a negative size.

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If this should return an error, that should be handled in sceIo.
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2015-01-09 15:50:06 -08:00
parent 01ff8709da
commit 52288f5905
3 changed files with 20 additions and 6 deletions
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Core/FileSystems/VirtualDiscFileSystem.cpp
+7 -2
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@@ -21,6 +21,7 @@
#include "Core/FileSystems/VirtualDiscFileSystem.h"
#include "Core/FileSystems/ISOFileSystem.h"
#include "Core/HLE/sceKernel.h"
#include "Core/Reporting.h"
#include "file/zip_read.h"
#include "util/text/utf8.h"
@@ -434,8 +435,12 @@ size_t VirtualDiscFileSystem::ReadFile(u32 handle, u8 *pointer, s64 size) {
size_t VirtualDiscFileSystem::ReadFile(u32 handle, u8 *pointer, s64 size, int &usec) {
EntryMap::iterator iter = entries.find(handle);
if (iter != entries.end())
{
if (iter != entries.end()) {
if (size < 0) {
ERROR_LOG_REPORT(FILESYS, "Invalid read for %lld bytes from virtual umd", size);
return 0;
}
// it's the whole iso... it could reference any of the files on the disc.
// For now let's just open and close the files on demand. Can certainly be done
// better though