Adds "ip" command to look up peer IPHEADmaster

2 files changed, 35 insertions, 0 deletions

diff --git a/check_user_name.h b/check_user_name.h
index 77051ce..1660001 100644
--- a/check_user_name.h
+++ b/check_user_name.h
@@ -24,4 +24,27 @@ int check_user_name(const char * username) {
 
 	return 0;
 
+}
+
+void get_ip_by_username(char * username) {
+
+	int i;
+
+	pthread_mutex_lock(&peer_table_lock);
+
+	for (i = 0; i < num_peers_in_table; i++) {
+		if (strcmp(peers[i].username, username) == 0) {
+
+			printf("IP: %s \n", peers[i].ip);
+			pthread_mutex_unlock(&peer_table_lock);
+			return;
+
+		}
+	}
+
+	printf("%s does not exist. \n", username);
+
+	pthread_mutex_unlock(&peer_table_lock);
+	return;
+
 }
\ No newline at end of file
diff --git a/user_command.h b/user_command.h
index 9e0df5a..3fcd40c 100644
--- a/user_command.h
+++ b/user_command.h
@@ -111,12 +111,24 @@ void process_user_command() {
 		}
 
 
+	} else if (strcmp(command, "ip\n") == 0) {
+
+		char user[32];
+
+		printf("user: ");
+		fgets(user, 32, stdin);
+
+		user[strlen(user) - 1] = 0;
+
+		get_ip_by_username(user);
+
 	} else if (strcmp(command, "help\n") == 0 || strcmp(command, "?\n") == 0) {
 
 		printf("Command Summary: \n");
 		printf("  who:  display a list of online peers \n");
 		printf("  chat: initiate a chat session \n");
 		printf("  quit: exit the localchat program \n");
+		printf("  ip:   display the IP address of a user \n");
 
 	} else if (strcmp(command, "\n") == 0) {
 		// no command, do nothing.