/*************************************************************************
* (C) 2011 AITNET - Sofia/Bulgaria - <office@aitnet.org>
* by Michael Pounov <misho@elwix.org>
*
* $Author: misho $
* $Id: client3.c,v 1.1 2011/10/04 22:37:46 misho Exp $
*
*************************************************************************/
#include "global.h"
static int
SetRemoteWinz(int h, u_short id, struct sockaddr *sa, u_char *buf, int buflen)
{
u_short *pos = (u_short*) buf;
struct winsize ws;
FTRACE(5);
memset(buf, 0, buflen);
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1) {
printf("Error:: ioctl(winsize) #%d - %s\n", errno, strerror(errno));
return -1;
}
pos[0] = htons(ws.ws_row);
pos[1] = htons(ws.ws_col);
pos[2] = htons(ws.ws_xpixel);
pos[3] = htons(ws.ws_ypixel);
if (icmpSend(h, id, ANSH_FLG_WINZ, buf, sizeof ws, sa, sizeof(struct sockaddr)) == -1)
return -1;
return 0;
}
int
ConnectL3(int h, u_short id, struct sockaddr *sa, int len)
{
fd_set rfd;
struct timeval tv = { Timeout, 0 };
struct termios otio;
int rlen, ret = 0;
u_short aid;
struct sockaddr s;
char flg;
u_char *buf;
socklen_t sl;
FTRACE(3);
if (!(buf = malloc(len))) {
printf("Error:: no enough memory #%d - %s\n", errno, strerror(errno));
return -1;
}
if (SetRemoteWinz(h, id, sa, buf, len) == -1) {
free(buf);
return -1;
}
ioSetRAWMode(STDIN_FILENO, &otio);
while (!Kill) {
FD_ZERO(&rfd);
FD_SET(h, &rfd);
FD_SET(STDIN_FILENO, &rfd);
if (select(h + 1, &rfd, NULL, NULL, (Timeout ? &tv : NULL)) < 1) {
ret = -1;
break;
}
if (FD_ISSET(STDIN_FILENO, &rfd)) {
memset(buf, 0, len);
rlen = read(STDIN_FILENO, buf, len);
if (rlen == -1) {
printf("Error:: read(stdin) #%d - %s\n", errno, strerror(errno));
ret = -1;
break;
}
rlen = icmpSend(h, id, ANSH_FLG_CPOUT, buf, rlen, sa, sizeof(struct sockaddr));
if (rlen == ANSH_FLG_ERR) {
ret = -1;
break;
}
} else {
sl = sizeof s;
rlen = len;
memset(buf, 0, rlen);
flg = icmpRecv(h, &aid, buf, &rlen, &s, &sl);
if (flg == ANSH_FLG_ERR) {
ret = -1;
break;
}
if (aid != id) {
VERB(4) LOG("different service id %d / %d\n", aid, id);
continue;
}
if (flg == ANSH_FLG_EOF) {
VERB(3) LOG("receive EOF going down.\n");
Kill++;
}
if (flg != ANSH_FLG_OK)
continue;
rlen = write(STDOUT_FILENO, buf, rlen);
if (rlen == -1) {
printf("Error:: write(stdout) #%d - %s\n", errno, strerror(errno));
ret = -1;
break;
}
}
}
ioRestoreMode(STDIN_FILENO, otio);
free(buf);
return ret;
}
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