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74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/* Fork a child process attached to the slave of a pseudo-terminal.
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Copyright (C) 2010-2021 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 3 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Specification. */
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#include <pty.h>
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#if HAVE_FORKPTY
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/* Provide a wrapper with the prototype of glibc-2.8 and newer. */
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# undef forkpty
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int
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rpl_forkpty (int *amaster, char *name, struct termios const *termp,
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struct winsize const *winp)
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{
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/* Cast away const, for implementations with weaker prototypes. */
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return forkpty (amaster, name, (struct termios *) termp,
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(struct winsize *) winp);
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}
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#else /* AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 10, mingw */
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# include <pty.h>
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# include <unistd.h>
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extern int login_tty (int slave_fd);
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int
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forkpty (int *amaster, char *name,
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const struct termios *termp, const struct winsize *winp)
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{
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int master, slave, pid;
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if (openpty (&master, &slave, name, termp, winp) == -1)
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return -1;
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switch (pid = fork ())
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{
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case -1:
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close (master);
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close (slave);
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return -1;
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case 0:
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/* Child. */
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close (master);
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if (login_tty (slave))
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_exit (1);
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return 0;
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default:
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/* Parent. */
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*amaster = master;
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close (slave);
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return pid;
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}
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}
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#endif
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