src/client/client_auth.c

   1 #include <stddef.h>
   2 #include <stdio.h>
   3 #include <linenoise/linenoise.h>
   4 #include "client.h"
   5 #include "client_auth.h"
   6 #include "interrupt.h"
   7 #include "types.h"
   8
   9 struct ClientAuth client_auth;
  10
  11 #include <string.h>
  12 static void auth_loop()
  13 {
  14         while (!interrupt.set) switch (client_auth.state) {
  15                 case AUTH_INIT:
  16                         if (client_auth.name)
  17                                 linenoiseFree(client_auth.name);
  18
  19                         if (!(client_auth.name = linenoise("Enter name: ")))
  20                                 return;
  21
  22                         printf("[access] authenticating as %s...\n", client_auth.name);
  23                         client_auth.state = AUTH_WAIT;
  24
  25                         dragonnet_peer_send_ToServerAuth(client, &(ToServerAuth) {
  26                                 .name = client_auth.name,
  27                         });
  28
  29                         __attribute__((fallthrough));
  30
  31                 case AUTH_WAIT:
  32                         pthread_cond_wait(&client_auth.cv, &client_auth.mtx);
  33                         break;
  34
  35                 case AUTH_SUCCESS:
  36                         return;
  37         }
  38 }
  39
  40 bool client_auth_init()
  41 {
  42         client_auth.name = NULL;
  43         pthread_cond_init(&client_auth.cv, NULL);
  44         pthread_mutex_init(&client_auth.mtx, NULL);
  45
  46         pthread_mutex_lock(&client_auth.mtx);
  47         client_auth.state = AUTH_INIT;
  48         flag_sub(&interrupt, &client_auth.cv); // make sure Ctrl+C will work during AUTH_WAIT
  49
  50         auth_loop();
  51
  52         flag_uns(&interrupt, &client_auth.cv);
  53         bool success = client_auth.state == AUTH_SUCCESS;
  54         pthread_mutex_unlock(&client_auth.mtx);
  55
  56         return success;
  57 }
  58
  59 void client_auth_deinit()
  60 {
  61         pthread_cond_destroy(&client_auth.cv);
  62         pthread_mutex_destroy(&client_auth.mtx);
  63         linenoiseFree(client_auth.name);
  64 }