apps/zjab/cmds.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <fcntl.h>
  24 #include <string.h>
  25 #include <stdlib.h>
  26 #include <unistd.h>
  27 #include "net.h"
  28 #include "xmpp.h"
  29 #include "cmds.h"
  30
  31 static char *cmd_window;
  32 static char *cmd_cache;
  33 static unsigned cmd_len;
  34
  35 #ifdef LINUX
  36 void setcolor (unsigned char t, unsigned char f)
  37 {
  38         /* TODO */
  39 }
  40 #endif
  41
  42 static int getstring (char *str)
  43 {
  44         if (cmd_len > CMDS_CACHE_SIZE-1) {
  45                 setcolor (4, 0);
  46                 printf ("\nERROR -> commands cache buffer is full ! Clearing cache ..\n");
  47                 setcolor (15, 0);
  48
  49                 cmd_len = 0;
  50                 return 0;
  51         }
  52
  53         char c = getchar ();
  54
  55         if (c != -1) {
  56                 if (c == '\n') {
  57                         unsigned l = cmd_len;
  58                         cmd_len = 0;
  59
  60                         return l;
  61                 }
  62                 if (c == '\b') {
  63                         if (cmd_len > 0)
  64                                 cmd_len --;
  65
  66                         return 0;
  67                 }
  68
  69                 str[cmd_len] = c;
  70                 cmd_len ++;
  71         }
  72
  73         return 0;
  74 }
  75
  76 int cmds_handler (char *buffer, unsigned len)
  77 {
  78         if (!strncmp (buffer, "/to ", 4)) {
  79                 if (cmd_window)
  80                         free (cmd_window);
  81
  82                 cmd_window = strndup (buffer+4, len-4);
  83
  84                 if (!cmd_window)
  85                         return -1;
  86
  87                 printf ("> Current chat window: %s\n", cmd_window);
  88
  89                 return 0;
  90         } else if (!strncmp (buffer, "/help", len)) {
  91                 printf ("> zjab help\n\t/to\t-\tSpecify JID of chat window\n\t/status\t-\tChange status\n\t/quit\t-\tQuit the zjab\n");
  92
  93                 return 0;
  94         } else if (!strncmp (buffer, "/status ", 8)) {
  95                 printf ("> Status was changed to \"%s\"\n", buffer+8);
  96                 xmpp_presence ("online", buffer+8);
  97                 return 0;
  98         } else if (!strncmp (buffer, "/quit", len))
  99                 return -1;
 100
 101         if (!cmd_window) {
 102                 printf ("> Unknown chat window, please use /help\n");
 103                 return 0;
 104         }
 105
 106         if (cmd_window)
 107                 xmpp_message (cmd_window, buffer, len);
 108
 109         setcolor (14, 0);
 110         printf ("> %s\n", buffer);
 111         setcolor (7, 0);
 112
 113         return 0;
 114 }
 115
 116 /* get input from keyboard */
 117 int cmds_get ()
 118 {
 119         int l = getstring (cmd_cache);
 120
 121         if (l > 0) {
 122                 cmd_cache[l] = '\0';
 123
 124                 return cmds_handler (cmd_cache, l);
 125         }
 126
 127         return 1;
 128 }
 129
 130 int cmds_init ()
 131 {
 132         cmd_cache = (char *) malloc (sizeof (char) * CMDS_CACHE_SIZE);
 133
 134         if (!cmd_cache)
 135                 return -1;
 136
 137         /* set socket "1" to non-blocking */
 138         int oldFlag = fcntl (1, F_GETFL, 0);
 139         if (fcntl (1, F_SETFL, oldFlag | O_NONBLOCK) == -1) {
 140                 printf ("Cant set socket to nonblocking mode\n");
 141                 return -1;
 142         }
 143
 144         cmd_len = 0;
 145         cmd_window = 0;
 146
 147         return 0;
 148 }