added ws202425 courses

2024-11-14 13:11:04 +01:00
parent 800282c2e8
commit beb31897b1
461 changed files with 20368 additions and 0 deletions
@@ -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;
+}