Authentication

auth.c

#include <stdio.h>
#include <string.h>

int auth(){
	int auth = 0;
	FILE* fp = fopen("passwd.txt", "r");
	char exp_user[10];
	char exp_pass[10];
	fscanf(fp, "%s %s", exp_user, exp_pass);
	
	// Get user input
	printf("Username: ");
	char user[10];
	scanf("%s", user);
	printf("Password: ");
	char pass[10];
	scanf("%s", pass);
	
	if (!strcmp(user, exp_user) && !strcmp(pass, exp_pass)){
		auth = 1;
	}
	
	return auth;
}

int main(){
	if (auth()){
		printf("User validated");
	} else {
		printf("Invalid user");
	}
	return 0;
}