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/*
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* Copyright (C) 1998,1999,2000 Ross Combs (rocombs@cs.nmsu.edu)
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* Copyright (C) 1999 Oleg Drokin (green@ccssu.ccssu.crimea.ua)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "common/setup_before.h"
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#include <stdio.h>
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#else
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# ifdef HAVE_STRINGS_H
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# include <strings.h>
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# endif
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#endif
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#include "compat/strrchr.h"
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include "compat/read.h"
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#ifdef HAVE_SYS_IOCTL_H
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# include <sys/ioctl.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_SOCKET_H
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# include <sys/socket.h>
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#endif
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#include "compat/socket.h"
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#include "compat/psock.h"
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#include "common/packet.h"
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#include "common/network.h"
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#ifdef WIN32
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# include <conio.h> /* for kbhit() and getch() */
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#endif
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#include "client.h"
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#include "common/setup_after.h"
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extern int client_blocksend_packet(int sock, t_packet const * packet)
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{
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unsigned int size=0;
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for (;;)
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switch (net_send_packet(sock,packet,&size))
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{
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case -1:
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return -1;
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case 0:
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continue;
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default:
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return 0;
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}
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}
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extern int client_blockrecv_packet(int sock, t_packet * packet)
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{
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unsigned int size=0;
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for (;;)
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switch (net_recv_packet(sock,packet,&size))
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{
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case -1:
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return -1;
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case 0:
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continue;
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default:
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/* printf("Got packet len %u/%u type 0x%04x\n",size,packet_get_size(packet),packet_get_type(packet)); */
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return 0;
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}
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}
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extern int client_blockrecv_raw_packet(int sock, t_packet * packet, unsigned int len)
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{
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unsigned int size=0;
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packet_set_size(packet,len);
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for (;;)
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switch (net_recv_packet(sock,packet,&size))
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{
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case -1:
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return -1;
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case 0:
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continue;
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case 1:
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default:
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return 0;
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}
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}
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extern int client_get_termsize(int fd, unsigned int * w, unsigned int * h)
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{
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if (fd<0 || !w || !h)
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return -1;
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*w = 0;
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*h = 0;
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#ifdef HAVE_IOCTL
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#ifdef TIOCGWINSZ
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{
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struct winsize ws;
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if (ioctl(fd,TIOCGWINSZ,&ws)>=0)
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{
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*w = (unsigned int)ws.ws_col;
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*h = (unsigned int)ws.ws_row;
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}
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}
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#endif
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#endif
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#ifdef HAVE_GETENV
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{
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char const * str;
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int val;
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if (!*w && (str = getenv("COLUMNS")) && (val = atoi(str))>0)
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*w = val;
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if (!*h && (str = getenv("LINES")) && (val = atoi(str))>0)
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*h = val;
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}
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#endif
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if (!*w)
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*w = DEF_SCREEN_WIDTH;
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if (!*h)
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*h = DEF_SCREEN_HEIGHT;
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return 0;
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}
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/* This routine gets keyboard input. It handles printing the prompt, cursor positioning, and
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text scrolling. It unfortunatly assumes that the chars read from stdin are in ASCII. */
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/* visible: -1=nothing, 0=prompt only, 1=prompt and text */
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extern int client_get_comm(char const * prompt, char * text, unsigned int maxlen, unsigned int * curpos, int visible, int redraw, unsigned int width)
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{
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char temp;
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unsigned int addlen;
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unsigned int i;
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unsigned int count;
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int beg_pos;
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for (count=0; count<16; count++)
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{
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beg_pos = 0;
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if (strlen(prompt)+1>=width)
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visible = 0; /* no room to show any of the text */
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else if (*curpos+strlen(prompt)+1>=width)
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beg_pos = (int)(*curpos+strlen(prompt)+1-width);
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if (redraw)
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{
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if (visible!=-1)
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printf("\r%s",prompt);
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if (visible==1)
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printf("%s",text+beg_pos);
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}
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fflush(stdout);
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#ifndef WIN32
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addlen = read(fileno(stdin),&temp,1);
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#else
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temp = getch();
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addlen=1;
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#endif
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if (addlen<1)
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return addlen;
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switch (temp)
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{
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case '\033': /* ESC */
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return -1;
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case '\r':
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case '\n':
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return 1;
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case '\b': /* BS */
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case '\177': /* DEL */
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if (*curpos<1) /* already empty */
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{
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if (visible==1)
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printf("\a");
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continue;
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}
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(*curpos)--;
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text[*curpos] = '\0';
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if (visible==1)
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{
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if (beg_pos>0)
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{
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beg_pos--;
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printf("\r%s%s",prompt,text+beg_pos);
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}
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else
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{ printf("\b \b"); }
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}
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continue;
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case '\024': /* ^T */
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if (*curpos<2)
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{
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if (visible==1)
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printf("\a");
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continue;
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}
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{
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char swap;
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swap = text[*curpos-1];
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text[*curpos-1] = text[*curpos-2];
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text[*curpos-2] = swap;
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if (visible==1)
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{
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printf("\b\b");
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printf("%s",&text[*curpos-2]);
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}
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}
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continue;
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case '\027': /* ^W */
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if (*curpos<1)
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{
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if (visible==1)
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printf("\a");
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continue;
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}
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{
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char * t=strrchr(text,' ');
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unsigned int t1=beg_pos,t2;
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addlen = t ? t - text : 0;
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text[addlen] = '\0';
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beg_pos -= *curpos - addlen;
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if (beg_pos < 0)
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beg_pos=0;
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if (visible==1)
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{
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if (t1 == 0)
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for (i=0; i < *curpos - addlen; i++)
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printf("\b \b");
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else
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{
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/* the \r is counted in the return value, but that's ok
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because the last column is always blank */
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t2 = printf("\r%s%s",prompt,text+beg_pos);
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if (t1 > 0 && beg_pos == 0)
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{
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for (i=0; i<width-t2; i++)
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printf(" ");
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for (i=0; i<width-t2; i++)
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printf("\b");
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}
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}
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}
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}
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*curpos = addlen;
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continue;
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case '\025': /* ^U */
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if (visible==1)
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{
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unsigned int t2;
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t2 = printf("\r%s",prompt);
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for (i=0; i<width-t2; i++)
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printf(" ");
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printf("\r%s",prompt);
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}
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*curpos = 0;
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text[0] = '\0';
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continue;
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default:
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if (temp>0 && temp<32) /* unhandled control char */
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{
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if (visible==1)
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printf("\a");
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continue;
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}
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if ((*curpos+1)>=maxlen) /* too full */
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{
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if (visible==1)
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printf("\a");
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continue;
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}
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if (visible==1)
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{
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if (beg_pos>0 || (*curpos + strlen(prompt) + 2 > width))
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{
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beg_pos++;
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printf("\r%s%s",prompt,text+beg_pos);
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}
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printf("%c",temp);
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}
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text[*curpos] = temp;
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(*curpos)++;
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text[*curpos] = '\0';
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continue;
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}
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}
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return 0;
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}
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