asdasdasdasdl;kkaspjoyui8d67hbgasd8us7aidsa

Makefile

@@ -0,0 +1,2 @@
+all:
+	gcc -g -o main main.c

main.c

@@ -0,0 +1,96 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#define ANSI_COLOR_RED     "\x1b[31m"
+#define ANSI_COLOR_GREEN   "\x1b[32m"
+#define ANSI_COLOR_YELLOW  "\x1b[33m"
+#define ANSI_COLOR_BLUE    "\x1b[34m"
+#define ANSI_COLOR_MAGENTA "\x1b[35m"
+#define ANSI_COLOR_CYAN    "\x1b[36m"
+#define ANSI_COLOR_RESET   "\x1b[0m"
+
+void read_file(FILE *file) {
+	int count = 0;
+	unsigned char buffer[1000000];
+	size_t bytesRead;
+	while ((bytesRead = fread(buffer, 1, sizeof(buffer), file)) > 0) {
+		for (size_t i = 0; i < bytesRead; i++) {
+			printf("%02x ", buffer[i]);
+			if(++count % 16 == 0) {
+				puts("");
+			}
+		}
+	}
+}
+
+void get_size(FILE *file, int argc, char *argv[]) {
+	fseek(file, 0L, SEEK_END);
+	long bytes = ftell(file);
+	fseek(file, 0L, SEEK_SET);
+	if (bytes == 1024) {
+		printf("Bytes of %s: %ld\n", argv[argc-1], bytes); 
+		puts("This looks like a Mifare Classic 1K dump file");
+	} else if (bytes == 4096) {
+		printf("Bytes of %s: %ld\n", argv[argc-1], bytes); 
+		puts("This lokks like a Mifare Classic 4K dump file");
+	} else {
+		printf("Bytes of %s: %ld\n", argv[argc-1], bytes); 
+		printf(ANSI_COLOR_RED "This doesn't look like a Mifare Classic 1K or 4K at all\n" ANSI_COLOR_RESET);
+	}
+}
+
+int main (int argc, char *argv[]) {
+	if (argc <= 1)
+	{
+		printf("Usage:\n %s [OPTION]... [FILE]\n\n", argv[0]);
+		puts("Tool to modify Mifare Classic dump files");
+		puts("\nOptions:");
+		puts("\t-s	display the size of the file in bytes\n");
+		exit(EXIT_SUCCESS);
+	}
+
+	struct option longopts[] = {
+		{"size", no_argument, NULL, 's'},
+		{"help", no_argument, NULL, 'h'},
+		{"version", no_argument, NULL, 'V'},
+		{NULL, no_argument, NULL, 0}
+	};
+
+	FILE *file;
+	unsigned char ch;
+	char *binfile = malloc(64 * sizeof(char));
+	if ( binfile == NULL ) {
+		puts("Failed to allocate memory");
+		exit(EXIT_FAILURE);
+	}
+
+	file = fopen(argv[argc-1], "rb");
+	if( file == NULL )
+	{
+		perror("Error while opening the file");
+		exit(EXIT_FAILURE);
+	}
+
+
+	int args;
+	while ((args = getopt_long(argc, argv, "s", longopts, NULL)) != -1) {
+		switch (args) {
+			case 's': 
+				{
+					get_size(file, argc, argv);
+				}
+			default:
+				exit(EXIT_SUCCESS);
+		}
+	}
+
+	read_file(file);
+
+	fclose(file);
+	free(binfile);
+	exit(EXIT_SUCCESS);
+
+}