source/fs.c at master · invoxiplaygames.uk/FreeMyXe

Xbox 360 executable designed to apply freedom-unlocking patches based on xeBuild to the kernel and hypervisor. (Mirrored from https://github.com/FreeMyXe/FreeMyXe)

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FreeMyXe / source / fs.c

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 1/*
 2    fs.c
 3    from the FreeMyXe project
 4    https://github.com/FreeMyXe/FreeMyXe
 5*/
 6
 7#include <xtl.h>
 8#include <stdio.h>
 9
10int FSFileExists(char *filename)
11{
12    DWORD attr = GetFileAttributesA(filename);
13    DWORD lastError = GetLastError();
14    return !(attr == -1 && (lastError == 2 || lastError == 3 || lastError == 1617));
15}
16
17int FSOpenFile(char *filename)
18{
19    HANDLE handle = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
20    if (handle == INVALID_HANDLE_VALUE)
21        return -1;
22    return (int)handle;
23}
24
25int FSFileSize(int file)
26{
27    return GetFileSize((HANDLE)file, NULL);
28}
29
30int FSReadFile(int file, int offset, void *buffer, int size)
31{
32    DWORD readBytes;
33    SetFilePointer((HANDLE)file, offset, NULL, FILE_BEGIN);
34    if (ReadFile((HANDLE)file, buffer, size, &readBytes, NULL) == FALSE)
35        return -1;
36    return readBytes;
37}
38
39void FSCloseFile(int file)
40{
41    XCloseHandle((HANDLE)file);
42}