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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 17:45:04 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 17:45:04 +0000 |
commit | 6aa82888e61d3e2232926ee68e764f17eae2e7e1 (patch) | |
tree | 17b2fb350da15d1d097f22dc7e2e7d20db1bd486 /sysdeps/unix/sysv/linux/ttyname.h | |
parent | ffbe9c552a1009167ec7a765c1543c7f3e4169d6 (diff) | |
parent | 963c37d5c0eb62b38f8764b23931c0dcdd497a13 (diff) |
Merge commit 'refs/top-bases/t/sendmsg-SCM_RIGHTS' into t/sendmsg-SCM_RIGHTS
Diffstat (limited to 'sysdeps/unix/sysv/linux/ttyname.h')
-rw-r--r-- | sysdeps/unix/sysv/linux/ttyname.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/ttyname.h b/sysdeps/unix/sysv/linux/ttyname.h new file mode 100644 index 0000000000..8ef0a16101 --- /dev/null +++ b/sysdeps/unix/sysv/linux/ttyname.h @@ -0,0 +1,48 @@ +/* Copyright (C) 2016-2018 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; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +#include <unistd.h> +#include <stdbool.h> +#include <sys/sysmacros.h> +#include <sys/types.h> +#include <sys/stat.h> + +/* Return true if this is a UNIX98 pty device, as defined in + linux/Documentation/devices.txt (on linux < 4.10) or + linux/Documentation/admin-guide/devices.txt (on linux >= 4.10). */ +static inline bool +is_pty (struct stat64 *sb) +{ +#ifdef _STATBUF_ST_RDEV + int m = __gnu_dev_major (sb->st_rdev); + return (136 <= m && m <= 143); +#else + return false; +#endif +} + +static inline bool +is_mytty (const struct stat64 *mytty, const struct stat64 *maybe) +{ + return (maybe->st_ino == mytty->st_ino + && maybe->st_dev == mytty->st_dev +#ifdef _STATBUF_ST_RDEV + && S_ISCHR (maybe->st_mode) + && maybe->st_rdev == mytty->st_rdev +#endif + ); +} |