***/
#include <sys/epoll.h>
-#include <sys/signalfd.h>
#include <sys/ioctl.h>
#include <limits.h>
#include <termios.h>
struct termios saved_stdin_attr;
struct termios saved_stdout_attr;
+ bool read_only:1;
+
bool saved_stdin:1;
bool saved_stdout:1;
/* The window size changed, let's forward that. */
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) >= 0)
- (void)ioctl(f->master, TIOCSWINSZ, &ws);
+ (void) ioctl(f->master, TIOCSWINSZ, &ws);
return 0;
}
-int pty_forward_new(sd_event *event, int master, bool ignore_vhangup, PTYForward **ret) {
+int pty_forward_new(
+ sd_event *event,
+ int master,
+ bool ignore_vhangup,
+ bool read_only,
+ PTYForward **ret) {
+
_cleanup_(pty_forward_freep) PTYForward *f = NULL;
struct winsize ws;
int r;
if (!f)
return -ENOMEM;
+ f->read_only = read_only;
f->ignore_vhangup = ignore_vhangup;
if (event)
return r;
}
- r = fd_nonblock(STDIN_FILENO, true);
- if (r < 0)
- return r;
+ if (!read_only) {
+ r = fd_nonblock(STDIN_FILENO, true);
+ if (r < 0)
+ return r;
- r = fd_nonblock(STDOUT_FILENO, true);
- if (r < 0)
- return r;
+ r = fd_nonblock(STDOUT_FILENO, true);
+ if (r < 0)
+ return r;
+ }
r = fd_nonblock(master, true);
if (r < 0)
f->master = master;
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) >= 0)
- (void)ioctl(master, TIOCSWINSZ, &ws);
+ (void) ioctl(master, TIOCSWINSZ, &ws);
- if (tcgetattr(STDIN_FILENO, &f->saved_stdin_attr) >= 0) {
- struct termios raw_stdin_attr;
+ if (!read_only) {
+ if (tcgetattr(STDIN_FILENO, &f->saved_stdin_attr) >= 0) {
+ struct termios raw_stdin_attr;
- f->saved_stdin = true;
+ f->saved_stdin = true;
- raw_stdin_attr = f->saved_stdin_attr;
- cfmakeraw(&raw_stdin_attr);
- raw_stdin_attr.c_oflag = f->saved_stdin_attr.c_oflag;
- tcsetattr(STDIN_FILENO, TCSANOW, &raw_stdin_attr);
- }
-
- if (tcgetattr(STDOUT_FILENO, &f->saved_stdout_attr) >= 0) {
- struct termios raw_stdout_attr;
+ raw_stdin_attr = f->saved_stdin_attr;
+ cfmakeraw(&raw_stdin_attr);
+ raw_stdin_attr.c_oflag = f->saved_stdin_attr.c_oflag;
+ tcsetattr(STDIN_FILENO, TCSANOW, &raw_stdin_attr);
+ }
- f->saved_stdout = true;
+ if (tcgetattr(STDOUT_FILENO, &f->saved_stdout_attr) >= 0) {
+ struct termios raw_stdout_attr;
- raw_stdout_attr = f->saved_stdout_attr;
- cfmakeraw(&raw_stdout_attr);
- raw_stdout_attr.c_iflag = f->saved_stdout_attr.c_iflag;
- raw_stdout_attr.c_lflag = f->saved_stdout_attr.c_lflag;
- tcsetattr(STDOUT_FILENO, TCSANOW, &raw_stdout_attr);
- }
+ f->saved_stdout = true;
- r = sd_event_add_io(f->event, &f->master_event_source, master, EPOLLIN|EPOLLOUT|EPOLLET, on_master_event, f);
- if (r < 0)
- return r;
+ raw_stdout_attr = f->saved_stdout_attr;
+ cfmakeraw(&raw_stdout_attr);
+ raw_stdout_attr.c_iflag = f->saved_stdout_attr.c_iflag;
+ raw_stdout_attr.c_lflag = f->saved_stdout_attr.c_lflag;
+ tcsetattr(STDOUT_FILENO, TCSANOW, &raw_stdout_attr);
+ }
- r = sd_event_add_io(f->event, &f->stdin_event_source, STDIN_FILENO, EPOLLIN|EPOLLET, on_stdin_event, f);
- if (r < 0 && r != -EPERM)
- return r;
+ r = sd_event_add_io(f->event, &f->stdin_event_source, STDIN_FILENO, EPOLLIN|EPOLLET, on_stdin_event, f);
+ if (r < 0 && r != -EPERM)
+ return r;
+ }
r = sd_event_add_io(f->event, &f->stdout_event_source, STDOUT_FILENO, EPOLLOUT|EPOLLET, on_stdout_event, f);
if (r == -EPERM)
else if (r < 0)
return r;
+ r = sd_event_add_io(f->event, &f->master_event_source, master, EPOLLIN|EPOLLOUT|EPOLLET, on_master_event, f);
+ if (r < 0)
+ return r;
+
r = sd_event_add_signal(f->event, &f->sigwinch_event_source, SIGWINCH, on_sigwinch_event, f);
+ if (r < 0)
+ return r;
*ret = f;
f = NULL;