added: 100-main_opcodes.c

Author: hackerSa3edy

0x0F-function_pointers/100-main_opcodes.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+/**
+ * main - prints the opcodes of its own main function.
+ *
+ * @argc: num of args.
+ * @argv: arguments' values
+ *
+ * Return: always success (0), (1) otherwise.
+ */
+int main(int argc, char **argv)
+{
+	int nBytes, index;
+	char *xmain = (char *)main;
+
+	if (argc != 2)
+	{
+		printf("Error\n");
+		exit(1);
+	}
+
+	nBytes = atoi(argv[1]);
+	if (nBytes < 0)
+	{
+		printf("Error\n");
+		exit(2);
+	}
+
+	for (index = 0; index < nBytes; index++)
+	{
+		printf("%02x", xmain[index] & 0xFF);
+		if (index != nBytes - 1)
+			printf(" ");
+
+	}
+	printf("\n");
+	return (0);
+}