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connected client needs to provide a username which will be communicated to rejected clients

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This commit is contained in:
Igor Socec 2014-04-03 02:04:13 +02:00
parent 55367f5fee
commit 75b30f3aa6
5 changed files with 63 additions and 17 deletions
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43
client.c
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@ -82,3 +82,46 @@ int client_write(struct client_t *client, char *databuf, int datalen) {
return len;
}
/* Waits for client to provide a username. Blocks until a username is entered. */
int client_ask_username(struct client_t *client) {
int i;
char databuf[DATABUF_LEN];
fd_set read_fds;
/* send username request to client */
snprintf(databuf, DATABUF_LEN,
"\nPlease provide a username to identify yourself to other users (max %d characters):\n", USERNAME_LEN);
client_write(client, databuf, strlen(databuf));
/* wait for client input */
client->username[0] = '\0';
while (client->username[0] == '\0') {
/* send prompt character to client */
snprintf(databuf, DATABUF_LEN, "> ");
client_write(client, databuf, strlen(databuf));
/* setup select() parameters */
FD_ZERO(&read_fds);
FD_SET(client->socket, &read_fds);
select((client->socket)+1, &read_fds, NULL, NULL, NULL);
if (FD_ISSET(client->socket, &read_fds)) {
client_read(client);
/* handle client input */
for (i = 0; i < USERNAME_LEN; i++) {
if (client->data[i] == '\r') {
break;
}
client->username[i] = client->data[i];
}
client->username[i+1] = '\0';
}
}
/* send welcome message to client */
snprintf(databuf, DATABUF_LEN,
"\nWelcome %s!\n\n", client->username);
client_write(client, databuf, strlen(databuf));
return 0;
}