Re-implement bis restoring

source/tegraexplorer/fs/filemenu.c

@@ -14,6 +14,7 @@
 #include "../common/types.h"
 #include "../../utils/sprintf.h"
 #include "../utils/script.h"
+#include "../emmc/emmcoperations.h"
 
 extern char *currentpath;
 extern char *clipboard;
@@ -170,14 +171,13 @@ int filemenu(menu_entry file){
             viewbytes(fsutil_getnextloc(currentpath, file.name));
             break;
         case FILE_DUMPBIS:
-            /*
-            clearscreen();
-            extract_bis_file(getnextloc(currentpath, file.name), currentpath);
+            gfx_clearscreen();
+            extract_bis_file(fsutil_getnextloc(currentpath, file.name), currentpath);
+            fsreader_readfolder(currentpath);
             btn_wait();
-            */
             break;
         case FILE_RESTOREBIS:
-            gfx_message(COLOR_ORANGE, "Stubbed");
+            restore_bis_using_file(fsutil_getnextloc(currentpath, file.name), SYSMMC);
             break;
     }
 

source/tegraexplorer/fs/fsextractbis.c

@@ -0,0 +1,94 @@
+#include "fsutils.h"
+#include <string.h>
+#include "../../gfx/gfx.h"
+#include "../gfx/gfxutils.h"
+#include "../../utils/types.h"
+#include "../../storage/emummc.h"
+#include "../common/common.h"
+#include "../../libs/fatfs/ff.h"
+#include "../../utils/sprintf.h"
+#include "../../utils/btn.h"
+#include "../../mem/heap.h"
+#include "../../storage/nx_emmc.h"
+#include "../common/types.h"
+#include "../utils/utils.h"
+
+u32 DecodeInt(u8* data) {
+    u32 out = 0;
+
+    for (int i = 0; i < 4; i++) {
+        out |= (data[i] << ((3 - i) * 8));
+    }
+
+    return out;
+}
+
+void copy_fil_size(FIL* in_src, FIL* out_src, int size_src){
+    u8* buff;
+    buff = calloc(16384, sizeof(u8));
+
+    int size = size_src;
+    int copysize;
+
+    while (size > 0){
+        copysize = MIN(16834, size);
+        f_read(in_src, buff, copysize, NULL);
+        f_write(out_src, buff, copysize, NULL);
+        size -= copysize;
+    }
+
+    free(buff);
+}
+
+void gen_part(int size, FIL* in, char *path){
+    FIL out;
+
+    f_open(&out, path, FA_WRITE | FA_CREATE_ALWAYS);
+    copy_fil_size(in, &out, size);
+    f_close(&out);
+}
+
+int extract_bis_file(char *path, char *outfolder){
+    FIL in;
+    int res;
+    u8 version[0x10];
+    u8 args;
+    u8 temp[0x4];
+    u32 filesizes[4];
+
+    if ((res = f_open(&in, path, FA_READ | FA_OPEN_EXISTING))){
+        gfx_errDisplay("extract_bis_file", res, 0);
+        return -1;
+    }
+
+    f_read(&in, version, 0x10, NULL);
+    f_read(&in, &args, 1, NULL);
+
+    for (int i = 0; i < 4; i++){
+        f_read(&in, temp, 4, NULL);
+        filesizes[i] = DecodeInt(temp);
+    }
+
+    gfx_printf("Version: %s\n\n", version);
+
+    gfx_printf("\nExtracting BOOT0\n");
+    if (args & BOOT0_ARG)
+        gen_part(filesizes[0], &in, fsutil_getnextloc(outfolder, "BOOT0.bin"));
+
+    gfx_printf("Extracting BOOT1\n");
+    if (args & BOOT1_ARG)
+        gen_part(filesizes[1], &in, fsutil_getnextloc(outfolder, "BOOT1.bin"));
+
+    gfx_printf("Extracting BCPKG2_1\n");
+    if (args & BCPKG2_1_ARG)
+        gen_part(filesizes[2], &in, fsutil_getnextloc(outfolder, "BCPKG2-1-Normal-Main"));
+
+    gfx_printf("Extracting BCPKG2_3\n");
+    if (args & BCPKG2_3_ARG)
+        gen_part(filesizes[3], &in, fsutil_getnextloc(outfolder, "BCPKG2-3-SafeMode-Main"));
+
+    gfx_printf("\n\nDone!\n");
+
+    f_close(&in);
+    return 0;   
+}

source/tegraexplorer/fs/fsutils.h

@@ -7,4 +7,5 @@ char *fsutil_getprevloc(char *current);
 int fsutil_getfileobjamount(menu_entry *entries);
 bool fsutil_checkfile(char* path);
 u64 fsutil_getfilesize(char *path);
-int fsutil_getfolderentryamount(const char *path);
+int fsutil_getfolderentryamount(const char *path);
+int extract_bis_file(char *path, char *outfolder);