Started working on file opening support

editor.c

@@ -4,6 +4,7 @@
 #include <signal.h>
 #include <string.h>
 #include <stdbool.h>
+#include <unistd.h>
 
 typedef struct Buffer_struct Buffer;
 struct Buffer_struct {
@@ -93,10 +94,25 @@ void sigint_handler(int dummy) {
 	exit(130);
 }
 
-int main() {
+int main(int argc, char** argv) {
 	signal(SIGINT,sigint_handler);
-
 	Buffer* buffer = new_buffer(10);
+
+	if (argc == 2) {
+		if (access(argv[1],F_OK) == 0) {  /* If the file exists */
+
+			FILE* file = fopen(argv[1],"r");
+			char c;
+			while (c = fgetc(file) != EOF) {
+				buffer_insert(c,buffer);
+			}
+	
+		} else {
+			printf("File does not exist.\n");
+			return -10;
+		}
+	}
+
 	init_curses();
 	int ch;