diff options
Diffstat (limited to 'support/tty.h')
-rw-r--r-- | support/tty.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/support/tty.h b/support/tty.h new file mode 100644 index 0000000000..1d37c42279 --- /dev/null +++ b/support/tty.h @@ -0,0 +1,45 @@ +/* Support functions related to (pseudo)terminals. + Copyright (C) 2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SUPPORT_TTY_H +#define _SUPPORT_TTY_H 1 + +struct termios; +struct winsize; + +/** Open a pseudoterminal pair. The outer fd is written to the address + A_OUTER and the inner fd to A_INNER. + + If A_NAME is not NULL, it will be set to point to a string naming + the /dev/pts/NNN device corresponding to the inner fd; space for + this string is allocated with malloc and should be freed by the + caller when no longer needed. (This is different from the libutil + function 'openpty'.) + + If TERMP is not NULL, the terminal parameters will be initialized + according to the termios structure it points to. + + If WINP is not NULL, the terminal window size will be set + accordingly. + + Terminates the process on failure (like xmalloc). */ +extern void support_openpty (int *a_outer, int *a_inner, char **a_name, + const struct termios *termp, + const struct winsize *winp); + +#endif |