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1.1 misho 1: /*************************************************************************
2: * (C) 2011 AITNET - Sofia/Bulgaria - <office@aitnet.org>
3: * by Michael Pounov <misho@elwix.org>
4: *
5: * $Author: misho $
1.1.1.1.2.1! misho 6: * $Id: client3.c,v 1.1.1.1 2011/10/04 22:37:46 misho Exp $
1.1 misho 7: *
8: *************************************************************************/
9: #include "global.h"
10:
11:
12: static int
13: SetRemoteWinz(int h, u_short id, struct sockaddr *sa, u_char *buf, int buflen)
14: {
15: u_short *pos = (u_short*) buf;
16: struct winsize ws;
17:
18: FTRACE(5);
19:
20: memset(buf, 0, buflen);
21: if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1) {
22: printf("Error:: ioctl(winsize) #%d - %s\n", errno, strerror(errno));
23: return -1;
24: }
25:
26: pos[0] = htons(ws.ws_row);
27: pos[1] = htons(ws.ws_col);
28: pos[2] = htons(ws.ws_xpixel);
29: pos[3] = htons(ws.ws_ypixel);
30: if (icmpSend(h, id, ANSH_FLG_WINZ, buf, sizeof ws, sa, sizeof(struct sockaddr)) == -1)
31: return -1;
32:
33: return 0;
34: }
35:
36: int
37: ConnectL3(int h, u_short id, struct sockaddr *sa, int len)
38: {
39: fd_set rfd;
40: struct timeval tv = { Timeout, 0 };
41: struct termios otio;
42: int rlen, ret = 0;
43: u_short aid;
44: struct sockaddr s;
1.1.1.1.2.1! misho 45: char flg, nl = 0;
1.1 misho 46: u_char *buf;
47: socklen_t sl;
48:
49: FTRACE(3);
50:
51: if (!(buf = malloc(len))) {
52: printf("Error:: no enough memory #%d - %s\n", errno, strerror(errno));
53: return -1;
54: }
55:
56: if (SetRemoteWinz(h, id, sa, buf, len) == -1) {
57: free(buf);
58: return -1;
59: }
60:
61: ioSetRAWMode(STDIN_FILENO, &otio);
62:
63: while (!Kill) {
64: FD_ZERO(&rfd);
65: FD_SET(h, &rfd);
66: FD_SET(STDIN_FILENO, &rfd);
67: if (select(h + 1, &rfd, NULL, NULL, (Timeout ? &tv : NULL)) < 1) {
68: ret = -1;
69: break;
70: }
71: if (FD_ISSET(STDIN_FILENO, &rfd)) {
72: memset(buf, 0, len);
73: rlen = read(STDIN_FILENO, buf, len);
74: if (rlen == -1) {
75: printf("Error:: read(stdin) #%d - %s\n", errno, strerror(errno));
76: ret = -1;
77: break;
78: }
1.1.1.1.2.1! misho 79:
! 80: /* local command handling */
! 81: if (rlen) {
! 82: /* execute local command */
! 83: if (nl == 2) {
! 84: switch (*buf) {
! 85: case '.':
! 86: Kill++;
! 87: printf("\n");
! 88: VERB(1) LOG("Exit from client\n");
! 89: continue;
! 90: case '~':
! 91: default:
! 92: nl ^= nl;
! 93: /* send buffer, unknown command */
! 94: break;
! 95: }
! 96: }
! 97: /* skip buffer and wait for local command */
! 98: if (nl == 1 && *buf == '~') {
! 99: nl++;
! 100: continue;
! 101: }
! 102: /* send buffer if detect NL */
! 103: if (*buf == 0xa || *buf == 0xd)
! 104: nl = 1;
! 105: else
! 106: nl ^= nl;
! 107: } else
! 108: nl ^= nl;
! 109:
1.1 misho 110: rlen = icmpSend(h, id, ANSH_FLG_CPOUT, buf, rlen, sa, sizeof(struct sockaddr));
111: if (rlen == ANSH_FLG_ERR) {
112: ret = -1;
113: break;
114: }
115: } else {
116: sl = sizeof s;
117: rlen = len;
118: memset(buf, 0, rlen);
119: flg = icmpRecv(h, &aid, buf, &rlen, &s, &sl);
120: if (flg == ANSH_FLG_ERR) {
121: ret = -1;
122: break;
123: }
124: if (aid != id) {
125: VERB(4) LOG("different service id %d / %d\n", aid, id);
126: continue;
127: }
128: if (flg == ANSH_FLG_EOF) {
129: VERB(3) LOG("receive EOF going down.\n");
130: Kill++;
131: }
132: if (flg != ANSH_FLG_OK)
133: continue;
134: rlen = write(STDOUT_FILENO, buf, rlen);
135: if (rlen == -1) {
136: printf("Error:: write(stdout) #%d - %s\n", errno, strerror(errno));
137: ret = -1;
138: break;
139: }
140: }
141: }
142:
143: ioRestoreMode(STDIN_FILENO, otio);
144: free(buf);
145: return ret;
146: }