Initial commit with cleaned history

2023 CS50X/memory/recover/recover.c

@@ -0,0 +1,51 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+typedef uint8_t BYTE;
+
+int main(int argc, char *argv[])
+{
+
+    if (argc != 2)
+    {
+        printf("Usage: ./recover IMAGE\n");
+        return 1;
+    }
+
+    FILE *file = fopen(argv[1], "r");
+    FILE *img = NULL;
+    BYTE buffer[512];
+    int img_number = 0;
+    char img_name[8];
+
+    while (fread(&buffer, 512, 1, file) == 1)
+    {
+        if (buffer[0] == 0xff &&
+            buffer[1] == 0xd8 &&
+            buffer[2] ==  0xff &&
+            (buffer[3] & 0xf0) == 0xe0)
+        {
+
+            if (!(img_number == 0))
+            {
+                fclose(img);
+            }
+
+            sprintf(img_name, "%03i.jpg", img_number);
+            img = fopen(img_name, "w");
+            img_number ++;
+
+        }
+
+        if (!(img_number == 0))
+        {
+            fwrite(&buffer, 512, 1, img);
+        }
+
+    }
+
+    fclose(file);
+    fclose(img);
+    return 0;
+
+}

2023 CS50X/memory/recover/test.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+int main(int argc, char *argv[])
+{
+
+    int BLOCK_SIZE = 512;
+    typedef uint8_t BYTE;
+    BYTE buffer[BLOCK_SIZE];
+
+    FILE *file = fopen("card.raw", "r");
+
+    if (argc != 2)
+    {
+        printf("Usage: ./recover card.raw\n");
+        return 1;
+    }
+
+    while (fread(&buffer, 1, BLOCK_SIZE, file) == BLOCK_SIZE)
+    {
+        if (buffer[0] == 0xff && buffer[1] == 0xd8 && buffer[2] ==  0xff && (buffer[3] & 0xf0) == 0xe0)
+        {
+            printf("%i",buffer)
+        }
+    }
+
+    fclose(file);
+    return 0;
+}