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