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/***************************************************************************
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netio.c - description
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-------------------
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begin : Mon Oct 18 2004
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copyright : (C) 2004 by Leaflet
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email : leaflet@leafok.com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "common.h"
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#include "io.h"
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#include <string.h>
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#include <unistd.h>
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#include <sys/socket.h>
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char s_getc(int socket)
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{
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char c;
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if (recv(socket, &c, 1, 0) > 0)
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return c;
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else
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return '\0';
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}
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int s_putc(int socket, char c)
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{
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int ret;
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ret = send(socket, &c, 1, 0);
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return ret;
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}
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int s_receive(int socket, char *buffer, int buffer_length, char end_str[])
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{
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char buf_str[2048];
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int buf_read, total_read;
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int buf_len = 2047;
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if (buf_len + 1 > buffer_length)
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buf_len = buffer_length - 1;
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total_read = 0;
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strcpy(buffer, "");
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while ((buf_read = recv(socket, buf_str, buf_len, 0)) > 0)
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{
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buf_str[buf_read] = '\0';
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total_read += buf_read;
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strcat(buffer, buf_str);
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buf_len = buffer_length - total_read - 1;
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if (buf_len + 1 > buffer_length)
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buf_len = buffer_length - 1;
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if (strcmp((buffer + total_read - strlen(end_str)), end_str) == 0)
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break;
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// different line-end symbol in different OS
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if (strcmp(end_str, "\r") == 0)
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{
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if (strcmp((buffer + total_read - 2), "\r\n") == 0)
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break;
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}
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}
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return total_read;
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}
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int s_send(int socket, const char *in_str)
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{
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int ret;
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if (in_str != NULL && strlen(in_str) > 0)
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{
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ret = send(socket, in_str, strlen(in_str), 0);
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}
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return ret;
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}
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// from Maple-hightman
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// added by flyriver, 2001.3.3
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int telnetopt(int fd, char *buf, int max)
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{
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unsigned char c, d, e;
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int pp = 0;
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unsigned char tmp[30];
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while (pp < max)
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{
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c = buf[pp++];
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if (c == 255)
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{
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d = buf[pp++];
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e = buf[pp++];
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iflush();
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if ((d == 253) && (e == 3 || e == 24))
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{
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tmp[0] = 255;
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tmp[1] = 251;
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tmp[2] = e;
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write(fd, tmp, 3);
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continue;
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}
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if ((d == 251 || d == 252) && (e == 1 || e == 3 || e == 24))
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{
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tmp[0] = 255;
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tmp[1] = 253;
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tmp[2] = e;
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write(fd, tmp, 3);
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continue;
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}
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if (d == 251 || d == 252)
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{
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tmp[0] = 255;
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tmp[1] = 254;
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tmp[2] = e;
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write(fd, tmp, 3);
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continue;
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}
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if (d == 253 || d == 254)
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{
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tmp[0] = 255;
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tmp[1] = 252;
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tmp[2] = e;
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write(fd, tmp, 3);
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continue;
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}
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if (d == 250)
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{
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while (e != 240 && pp < max)
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e = buf[pp++];
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tmp[0] = 255;
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tmp[1] = 250;
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tmp[2] = 24;
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tmp[3] = 0;
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tmp[4] = 65;
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tmp[5] = 78;
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tmp[6] = 83;
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tmp[7] = 73;
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tmp[8] = 255;
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tmp[9] = 240;
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write(fd, tmp, 10);
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}
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}
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else
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outc(c);
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}
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iflush();
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return 0;
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}
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