From faf17232932d4aff1b266eb21325aa5e7d341321 Mon Sep 17 00:00:00 2001
From: entriphy <1747088+entriphy@users.noreply.github.com>
Date: Mon, 15 Jul 2024 01:19:01 -0700
Subject: [PATCH] vt: Decompile vtutil.c

---
 CMakeLists.txt     |  2 +-
 src/vtusr/vtutil.c | 37 ++++++++++++++++++++++++++++++++++++-
 src/vtusr/vtutil.h |  1 +
 3 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f902892..2673ddf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,7 +23,7 @@ set_target_properties(PS2_CRT0 PROPERTIES OUTPUT_NAME "crt0.o")
 set(EXECUTABLES)
 
 # C files
-set(SUBDIRS abe harada hato hoshino kazuya nakano okanoyo taka take okanoyo/debug vtusr/taro okanoyo/linux)
+set(SUBDIRS abe harada hato hoshino kazuya nakano okanoyo taka take okanoyo/debug vtusr vtusr/taro okanoyo/linux)
 foreach (SUBDIR IN LISTS SUBDIRS)
     file(GLOB files src/${SUBDIR}/*.c)
     foreach (file ${files})
diff --git a/src/vtusr/vtutil.c b/src/vtusr/vtutil.c
index 776780c..65e8af3 100644
--- a/src/vtusr/vtutil.c
+++ b/src/vtusr/vtutil.c
@@ -1,5 +1,40 @@
+#include <sifdev.h>
 #include "vtusr/vtutil.h"
+#include "okanoyo/okio.h"
+
+u128* vtFileRead(char *name) {
+    s32 fd;
+    s32 size;
+    u128 *buf;
+    char tmp;
+    s32 status;
+
+    fd = sceOpen(name, SCE_RDONLY);
+    if (fd < 0) {
+        printf("can't open [%s]\n", name);
+        return NULL;
+    }
+
+    size = sceLseek(fd, 0, SEEK_END);
+    sceLseek(fd, 0, SEEK_SET);
+    buf = getBuff(1, size, &tmp, &status);
+    if (sceRead(fd, buf, size) < 0) {
+        printf("load failed [%s]\n", name);
+        return NULL;
+    } else {
+        printf("load sucees %d byte\n", size); // sucees
+        sceClose(fd);
+        return buf;
+    }
+}
 
 void* vtGetBuf64(u32 size) {
-    // TODO
+    char tmp;
+    s32 status;
+    void *buf;
+
+    buf = getBuff(1, size + 0x3F, &tmp, &status);
+    buf = (void *)(((u32)buf - 1) & ~0x3F);
+    buf = (void *)((u8 *)buf + 0x40);
+    return buf;
 }
\ No newline at end of file
diff --git a/src/vtusr/vtutil.h b/src/vtusr/vtutil.h
index 33a2769..bd84ec4 100644
--- a/src/vtusr/vtutil.h
+++ b/src/vtusr/vtutil.h
@@ -3,6 +3,7 @@
 
 #include "common.h"
 
+extern u128* vtFileRead(char *name);
 extern void* vtGetBuf64(u32 size);
 
 #endif
\ No newline at end of file