---- ../mosh/src/frontend/pty.cc 2016-04-29 00:42:37.207832463 +1000
-+++ ./src/frontend/pty.cc 2016-04-29 00:40:31.306486322 +1000
-@@ -0,0 +1,147 @@
-+/*
-+ Mosh: the mobile shell
-+ Copyright 2012 Keith Winstein
-+
-+ This program is free software: you can redistribute it and/or modify
-+ it under the terms of the GNU General Public License as published by
-+ the Free Software Foundation, either version 3 of the License, or
-+ (at your option) any later version.
-+
-+ This program is distributed in the hope that it will be useful,
-+ but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ GNU General Public License for more details.
-+
-+ You should have received a copy of the GNU General Public License
-+ along with this program. If not, see <http://www.gnu.org/licenses/>.
-+*/
-+
-+#include "config.h"
-+
-+#include <sys/types.h>
-+#include <sys/stat.h>
-+#include <sys/ioctl.h>
-+#include <fcntl.h>
-+#include <termios.h>
-+#include <unistd.h>
-+#include <stdlib.h>
-+#include <errno.h>
-+#include <string.h>
-+#include <pty.h>
-+
-+#ifndef HAVE_OPENPTY
-+/* from dropbear 0.53.1 sshpty.c, original license: "can be used freely for any purpose." */
-+int my_openpty (int *amaster, int *aslave, char *name, const struct termios *termp,
-+ const struct winsize *winp)
-+{
-+ int master, slave;
-+ char *name_slave;
-+
-+ master = open("/dev/ptmx", O_RDWR);
-+ if (master == -1) {
-+// TRACE(("Fail to open master"))
-+ return -1;
-+ }
-+
-+ if (grantpt(master))
-+ goto fail;
-+
-+ if (unlockpt(master))
-+ goto fail;
-+
-+ name_slave = ptsname(master);
-+// TRACE(("openpty: slave name %s", name_slave))
-+ slave = open(name_slave, O_RDWR | O_NOCTTY);
-+ if (slave == -1)
-+ {
-+ goto fail;
-+ }
-+
-+ if(termp)
-+ tcsetattr(slave, TCSAFLUSH, termp);
-+ if (winp)
-+ ioctl (slave, TIOCSWINSZ, winp);
-+
-+ *amaster = master;
-+ *aslave = slave;
-+ if (name != NULL)
-+ strcpy(name, name_slave);
-+
-+ return 0;
-+
-+ fail:
-+ close (master);
-+ return -1;
-+}
-+#endif
-+
-+#ifndef HAVE_LOGIN_TTY
-+/* from glibc 2.14, login/login_tty.c, under the BSD license */
-+int login_tty(int fd)
-+{
-+ (void) setsid();
-+#ifdef TIOCSCTTY
-+ if (ioctl(fd, TIOCSCTTY, (char *)NULL) == -1)
-+ return (-1);
-+#else
-+ {
-+ /* This might work. */
-+ char *fdname = ttyname (fd);
-+ int newfd;
-+ if (fdname)
-+ {
-+ if (fd != 0)
-+ (void) close (0);
-+ if (fd != 1)
-+ (void) close (1);
-+ if (fd != 2)
-+ (void) close (2);
-+ newfd = open (fdname, O_RDWR);
-+ (void) close (newfd);
-+ }
-+ }
-+#endif
-+ while (dup2(fd, 0) == -1 && errno == EBUSY)
-+ ;
-+ while (dup2(fd, 1) == -1 && errno == EBUSY)
-+ ;
-+ while (dup2(fd, 2) == -1 && errno == EBUSY)
-+ ;
-+ if (fd > 2)
-+ (void) close(fd);
-+ return (0);
-+}
-+#endif
-+
-+int my_forkpty (int *amaster, char *name, const struct termios *termp, const struct winsize *winp) {
-+#ifdef HAVE_FORKPTY
-+//return forkpty(amaster, name, termp, winp);
-+#else
-+/* from glibc 2.14, login/forkpty.c, under the LGPL 2.1 (or later) license */
-+ int master, slave, pid;
-+
-+ if (openpty (&master, &slave, name, termp, winp) == -1)
-+ return -1;
-+
-+ switch (pid = fork ())
-+ {
-+ case -1:
-+ close (master);
-+ close (slave);
-+ return -1;
-+ case 0:
-+ /* Child. */
-+ close (master);
-+ if (login_tty (slave))
-+ _exit (1);
-+
-+ return 0;
-+ default:
-+ /* Parent. */
-+ *amaster = master;
-+ close (slave);
-+
-+ return pid;
-+ }
-+#endif
-+}
~mdw / termux-packages / commitdiff