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Try to detect if someone tries to open a PSX ISO

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This commit is contained in:
Kingcom 2013-09-02 01:49:15 +02:00
parent ad74a80bb7
commit 33be3da057
2 changed files with 32 additions and 6 deletions
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37
Core/Loaders.cpp
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@ -35,9 +35,35 @@ IdentifiedFileType Identify_File(std::string &filename)
return FILETYPE_ERROR;
}
FileInfo info;
if (!getFileInfo(filename.c_str(), &info)) {
return FILETYPE_ERROR;
}
std::string extension = filename.size() >= 5 ? filename.substr(filename.size() - 4) : "";
if (!strcasecmp(extension.c_str(),".iso"))
{
// may be a psx iso, they have 2352 byte sectors. You never know what some people try to open
if ((info.size % 2352) == 0)
{
FILE *f = File::OpenCFile(filename.c_str(), "rb");
if (!f) {
// File does not exists
return FILETYPE_ERROR;
}
unsigned char sync[12];
fread(sync,1,12,f);
fclose(f);
// each sector in a mode2 image starts with these 12 bytes
if (memcmp(sync,"\x00\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x00",12) == 0)
{
return FILETYPE_ISO_MODE2;
}
// maybe it also just happened to have that size,
}
return FILETYPE_PSP_ISO;
}
else if (!strcasecmp(extension.c_str(),".cso"))
@ -45,13 +71,8 @@ IdentifiedFileType Identify_File(std::string &filename)
return FILETYPE_PSP_ISO;
}
// First, check if it's a directory with an EBOOT.PBP in it.
FileInfo info;
if (!getFileInfo(filename.c_str(), &info)) {
return FILETYPE_ERROR;
}
if (info.isDirectory) {
// First, check if it's a directory with an EBOOT.PBP in it. if (info.isDirectory) {
if (filename.size() > 4) {
FileInfo ebootInfo;
// Check for existence of EBOOT.PBP, as required for "Directory games".
@ -218,6 +239,10 @@ bool LoadFile(std::string &filename, std::string *error_string) {
#endif
break;
case FILETYPE_ISO_MODE2:
*error_string = "File is a MODE2 image. Are you trying to open a PSX game?";
break;
case FILETYPE_NORMAL_DIRECTORY:
ERROR_LOG(LOADER, "Just a directory.");
*error_string = "Just a directory.";

1
Core/Loaders.h
View File

@ -36,6 +36,7 @@ enum IdentifiedFileType {
FILETYPE_ARCHIVE_RAR,
FILETYPE_ARCHIVE_ZIP,
FILETYPE_PSP_PS1_PBP,
FILETYPE_ISO_MODE2,
FILETYPE_NORMAL_DIRECTORY,