From 1b9f5d8ee952b286d7477a7c80b5aded278cfbd8 Mon Sep 17 00:00:00 2001
From: Thomas Bracht Laumann Jespersen <laumann.thomas@gmail.com>
Date: Sun, 1 Jul 2012 00:32:15 +0200
Subject: [PATCH] Changed login program.

---
 begin/login.c | 42 +++++++++++++++++++++++++++++-------------
 1 file changed, 29 insertions(+), 13 deletions(-)

diff --git a/begin/login.c b/begin/login.c
index 756fcf8..aaf3301 100644
--- a/begin/login.c
+++ b/begin/login.c
@@ -6,6 +6,8 @@
 #include <unistd.h>
 
 #define ARRAYSIZE(x)	((sizeof(x)/sizeof(*x))-1)
+#define NO_USER		(struct user_s){0,0}
+
 
 struct user_s {
 	char *name, *pass;
@@ -16,8 +18,10 @@ main(int argc, char **argv)
 {
 	char *name = (char*)malloc(BUFSIZ*sizeof(char));
 	char *pass = (char*)malloc(BUFSIZ*sizeof(char));
+	struct user_s user = NO_USER;
 
-	struct user_s users[] = {
+	/* Set up users */
+	const struct user_s users[] = {
 		{ "Thomas", "acidophilus" },
 		{ "Diana" , "semnificant" },
 		{ "Morten", "monsoon" },
@@ -28,21 +32,30 @@ main(int argc, char **argv)
 
 	scanf("%s", name);
 
-
-/*	int c = getchar(), i = 0;
-	for (;;) {
-		c = getch();
-		if (c == '\n' || c == EOF)
-			break;
-		*(pass + i++) = (char)c;
-		putchar('\b');
-		putchar('*');
+	/* Look for the user */
+	int i;
+	for (i = 0; i < ARRAYSIZE(users); i++) {
+		if (!strcmp(users[i].name, name)) {
+			user = users[i];
+			goto getpass;
+		}
 	}
-*/
+	goto wronguser;
+
+
+getpass:
 	pass = getpass("Please enter your password: ");
 
 	printf("Got password '%s'\n", pass);
+	if (!strcmp(user.pass, pass)) {
+		printf("Successfully logged in as: %s\n", name);
+		exit(0);
+	} else {
+		printf("Wrong password for user %s\n", name);
+		exit(1);
+	}
 
+	/*
 	int i;
 	for (i = 0 ; i < ARRAYSIZE(users); i++)
 		if (!strcmp(users[i].name, name)) {
@@ -55,7 +68,10 @@ main(int argc, char **argv)
 				exit(1);
 			}
 		}
-	
-	printf("Login failed. User %s not found.\n", name);
+	*/
+
+wronguser:
+	printf("Login failed. User '%s' not found.\n", name);
 	exit(1);
+
 }
-- 
2.45.2