cs and c

C/C5 and C6 Adidas/product/channel_main.c

@@ -1,9 +1,46 @@
 #include "channel.h"
-// add here includes, if needed
+#include <stdio.h>
+#include <stdbool.h>
 
 int channel_main(int argc, char* argv[])
 {
-    //add your code here
+    bool running = true;
+    FILE *input_file = fopen(argv[2], "rb");
+    if (input_file == NULL) {
+        fprintf(stderr, "Error opening input file: %s\n", argv[2]);
+        return 1;
+    }
+    FILE *output_file = fopen(argv[3], "wb");
+    if (output_file == NULL) {
+        fprintf(stderr, "Error opening output file: %s\n", argv[3]);
+        fclose(input_file);
+        return 1;
+    }
 
+    while (running){
+        // Read data 
+        unsigned char buffer[1024];
+        size_t bytes_read = fread(buffer, 1, sizeof(buffer), input_file);
+
+        if (bytes_read == 0) {
+            if (feof(input_file)) {
+                running = false; // eof reached
+            } else {
+                fprintf(stderr, "Error reading from input file\n");
+                fclose(input_file);
+                fclose(output_file);
+                return 1;
+            }
+        }
+
+        // Channel data
+        unsigned char processed_data[1024];
+        size_t processed_size = process_channel(buffer, bytes_read, processed_data);
+
+        // Write data
+        fwrite(processed_data, 1, processed_size, output_file);
+    }
+    fclose(input_file);
+    fclose(output_file);
     return 0;
 }

C/C5 and C6 Adidas/product/decode_main.c

@@ -1,10 +1,51 @@
 #include "decode.h"
-// add here includes, if needed
-
+#include <stdio.h>
+#include <stdbool.h>
 
 int decode_main(int argc, char* argv[])
 {
-    //add your code here
+    bool decoding = true;
+    FILE *input_file = fopen(argv[2], "rb");
+    if (input_file == NULL) {
+        fprintf(stderr, "Error opening input file: %s\n", argv[2]);
+        return 1;
+    }
+    FILE *output_file = fopen(argv[3], "wb");
+    if (output_file == NULL) {
+        fprintf(stderr, "Error opening output file: %s\n", argv[3]);
+        fclose(input_file);
+        return 1;
+    }
+    while (decoding)
+    {
+        // Read data 
+        unsigned char data[1024];
+        unsigned char buffer_High[sizeof(data)/2];
+        unsigned char buffer_Low[sizeof(data)/2];
+        size_t bytes_read = fread(&data, 1, sizeof(data), input_file);
+        for (size_t i = 0; i < bytes_read; i++) {
+            buffer_High[i] = data[i + (sizeof(data)/2)];
+            buffer_Low[i] = data[i];
+        }
 
+
+        if (bytes_read == 0) {
+            if (feof(input_file)) {
+                decoding = false; // eof reached
+            } else {
+                fprintf(stderr, "Error reading from input file\n");
+                fclose(input_file);
+                fclose(output_file);
+                return 1;
+            }
+        }
+
+        // Decode data
+        unsigned char decoded_data[sizeof(data)];
+        decoded_data[sizeof(data)] = decode_combine_nibbles(*buffer_High, *buffer_Low);
+        
+        // Write data
+        fwrite(decoded_data, 1, bytes_read, output_file);
+    }
     return 0;
 }

C/C5 and C6 Adidas/product/encode_main.c

@@ -1,10 +1,46 @@
 #include "encode.h"
-// add here includes, if needed
-
+#include <stdbool.h>
+#include <stdio.h>
 
 int encode_main(int argc, char* argv[])
 {
-    //add your code here
+    bool encoding = true;
+    FILE *input_file = fopen(argv[2], "rb");
+    if (input_file == NULL) {
+        fprintf(stderr, "Error opening input file: %s\n", argv[2]);
+        return 1;
+    }
+    FILE *output_file = fopen(argv[3], "wb");
+    if (output_file == NULL) {
+        fprintf(stderr, "Error opening output file: %s\n", argv[3]);
+        fclose(input_file);
+        return 1;
+    }
+    while (encoding)
+    {
+        // Read data 
+        unsigned char buffer[512];
+        size_t bytes_read = fread(buffer, 1, sizeof(buffer), input_file);
 
+        if (bytes_read == 0) {
+            if (feof(input_file)) {
+                encoding = false; // eof reached
+            } else {
+                fprintf(stderr, "Error reading from input file\n");
+                fclose(input_file);
+                fclose(output_file);
+                return 1;
+            }
+        }
+
+        // Encode data
+        unsigned char encoded_data_high[sizeof(buffer)];
+        unsigned char encoded_data_low[sizeof(buffer)];
+        encode_value(buffer, encoded_data_high, encoded_data_low);
+
+        // Write data
+        fwrite(encoded_data_high, 1, bytes_read, output_file);
+        fwrite(encoded_data_low, 1, bytes_read, output_file);
+    }
     return 0;
 }

C/C5 and C6 Adidas/shared/decode.c

@@ -23,7 +23,7 @@ void decode_byte(uint8_t in, uint8_t* nibble){
     // Check parity bits
     uint8_t error = 0;
     if ((p0 ^ d0 ^ d1 ^ d2) != 0) error |= 0x01;  // Error in p0 group
-    if ((p1 ^ d0 ^ d1 ^ d3) != 0) error |= 0x02;  // Error in p1 group
+    if ((p1 ^ d0 ^ d1 ^ d3) != 0) error |= 0x02;  // Error in p1 group // 0000111
     if ((p2 ^ d0 ^ d2 ^ d3) != 0) error |= 0x04;  // Error in p2 group
 
     if (MSB == 0 && error != 0) {