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More fixes for ssh

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This commit is contained in:
Andrew Pamment 2016-12-11 23:17:43 +10:00
parent 48b478f9c3
commit 2c11107954
1 changed files with 114 additions and 88 deletions
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202
doors.c
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@ -194,86 +194,83 @@ void runexternal(struct user_record *user, char *cmd, int stdio, char *argv[], c
door_out = gSocket;
}
if (sshBBS && raw) {
ttySetRaw(STDIN_FILENO, &oldit);
ttySetRaw(STDOUT_FILENO, &oldot);
}
ws.ws_row = 24;
ws.ws_col = 80;
running_door = 1;
if (openpty(&master, &slave, NULL, NULL, &ws) == 0) {
sa.sa_handler = doorchld_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART | SA_SIGINFO;
if (sigaction(SIGCHLD, &sa, NULL) == -1) {
perror("sigaction");
exit(1);
}
if (raw) {
ttySetRaw(master, &oldit2);
ttySetRaw(slave, &oldit2);
}
pid = fork();
if (pid < 0) {
return;
} else if (pid == 0) {
if (cwd != NULL) {
chdir(cwd);
if (!sshBBS) {
if (openpty(&master, &slave, NULL, NULL, &ws) == 0) {
sa.sa_handler = doorchld_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART | SA_SIGINFO;
if (sigaction(SIGCHLD, &sa, NULL) == -1) {
perror("sigaction");
exit(1);
}
close(master);
dup2(slave, 0);
dup2(slave, 1);
if (sshBBS) {
dup2(bbs_stderr, 2);
if (raw) {
ttySetRaw(master, &oldit2);
ttySetRaw(slave, &oldit2);
}
close(slave);
setsid();
ioctl(0, TIOCSCTTY, 1);
execvp(cmd, argv);
} else {
running_door_pid = pid;
gotiac = 0;
flush = 0;
while(running_door || !flush) {
FD_ZERO(&fdset);
FD_SET(master, &fdset);
FD_SET(door_in, &fdset);
if (master > door_in) {
t = master + 1;
} else {
t = door_in + 1;
pid = fork();
if (pid < 0) {
return;
} else if (pid == 0) {
if (cwd != NULL) {
chdir(cwd);
}
close(master);
dup2(slave, 0);
dup2(slave, 1);
thetimeout.tv_sec = 5;
thetimeout.tv_usec = 0;
close(slave);
setsid();
ioctl(0, TIOCSCTTY, 1);
execvp(cmd, argv);
} else {
running_door_pid = pid;
gotiac = 0;
flush = 0;
ret = select(t, &fdset, NULL, NULL, &thetimeout);
if (ret > 0) {
if (FD_ISSET(door_in, &fdset)) {
len = read(door_in, &c, 1);
if (len == 0) {
close(master);
disconnect("Socket Closed");
return;
}
if (!raw) {
if (c == '\n' || c == '\0') {
close(slave);
while(running_door || !flush) {
FD_ZERO(&fdset);
FD_SET(master, &fdset);
FD_SET(door_in, &fdset);
if (master > door_in) {
t = master + 1;
} else {
t = door_in + 1;
}
thetimeout.tv_sec = 5;
thetimeout.tv_usec = 0;
ret = select(t, &fdset, NULL, NULL, &thetimeout);
if (ret > 0) {
if (FD_ISSET(door_in, &fdset)) {
len = read(door_in, &c, 1);
if (len == 0) {
close(master);
disconnect("Socket Closed");
return;
}
if (!raw) {
if (c == '\n' || c == '\0') {
continue;
}
}
if (!running_door) {
continue;
}
}
if (!running_door) {
continue;
}
if (!sshBBS) {
if (c == 255) {
if (gotiac == 1) {
write(master, &c, 1);
@ -289,33 +286,62 @@ void runexternal(struct user_record *user, char *cmd, int stdio, char *argv[], c
gotiac = 0;
}
}
} else {
write(master, &c, 1);
}
} else if (FD_ISSET(master, &fdset)) {
len = read(master, &c, 1);
if (len == 0) {
close(master);
break;
}
if (c == 255 && !sshBBS) {
} else if (FD_ISSET(master, &fdset)) {
len = read(master, &c, 1);
if (len == 0) {
close(master);
break;
}
if (c == 255) {
write(door_out, &c, 1);
}
write(door_out, &c, 1);
}
write(door_out, &c, 1);
}
} else {
if (!running_door) {
flush = 1;
}
} else {
if (!running_door) {
flush = 1;
}
}
}
close(master);
}
}
} else {
if (raw) {
ttySetRaw(STDIN_FILENO, &oldit);
ttySetRaw(STDOUT_FILENO, &oldot);
}
sa.sa_handler = doorchld_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART | SA_SIGINFO;
if (sigaction(SIGCHLD, &sa, NULL) == -1) {
perror("sigaction");
exit(1);
}
pid = fork();
if (pid < 0) {
return;
} else if (pid == 0) {
if (cwd != NULL) {
chdir(cwd);
}
dup2(bbs_stderr, 2);
execvp(cmd, argv);
} else {
while(running_door) {
sleep(1);
}
}
if (raw) {
tcsetattr(STDIN_FILENO, TCSANOW, &oldit);
tcsetattr(STDOUT_FILENO, TCSANOW, &oldot);
}
}
if (sshBBS && raw) {
tcsetattr(STDIN_FILENO, TCSANOW, &oldit);
tcsetattr(STDOUT_FILENO, TCSANOW, &oldot);
}
} else {
if (!sshBBS) {
snprintf(buffer, 1024, "%s", cmd);