diff options
Diffstat (limited to 'libc/termios/tcsetattr.c')
| -rw-r--r-- | libc/termios/tcsetattr.c | 116 |
1 files changed, 57 insertions, 59 deletions
diff --git a/libc/termios/tcsetattr.c b/libc/termios/tcsetattr.c index 9f8c172bd..83bf61d99 100644 --- a/libc/termios/tcsetattr.c +++ b/libc/termios/tcsetattr.c @@ -2,22 +2,23 @@ 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 Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. + 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 - Library General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ #include <errno.h> #include <string.h> +#include <termios.h> #include <sys/ioctl.h> #include <sys/types.h> @@ -46,73 +47,70 @@ /* Set the state of FD to *TERMIOS_P. */ -int tcsetattr (fd, optional_actions, termios_p) - int fd; - int optional_actions; - const struct libc_termios *termios_p; +int tcsetattr (int fd, int optional_actions, const struct termios *termios_p) { - struct __kernel_termios k_termios; - unsigned long int cmd; - int retval; + struct __kernel_termios k_termios; + unsigned long int cmd; + int retval; - switch (optional_actions) + switch (optional_actions) { - case TCSANOW: - cmd = TCSETS; - break; - case TCSADRAIN: - cmd = TCSETSW; - break; - case TCSAFLUSH: - cmd = TCSETSF; - break; - default: - __set_errno(EINVAL); - return -1; + case TCSANOW: + cmd = TCSETS; + break; + case TCSADRAIN: + cmd = TCSETSW; + break; + case TCSAFLUSH: + cmd = TCSETSF; + break; + default: + __set_errno (EINVAL); + return -1; } - k_termios.c_iflag = termios_p->c_iflag & ~IBAUD0; - k_termios.c_oflag = termios_p->c_oflag; - k_termios.c_cflag = termios_p->c_cflag; - k_termios.c_lflag = termios_p->c_lflag; - k_termios.c_line = termios_p->c_line; + k_termios.c_iflag = termios_p->c_iflag & ~IBAUD0; + k_termios.c_oflag = termios_p->c_oflag; + k_termios.c_cflag = termios_p->c_cflag; + k_termios.c_lflag = termios_p->c_lflag; + k_termios.c_line = termios_p->c_line; #ifdef _HAVE_C_ISPEED - k_termios.c_ispeed = termios_p->c_ispeed; + k_termios.c_ispeed = termios_p->c_ispeed; #endif #ifdef _HAVE_C_OSPEED - k_termios.c_ospeed = termios_p->c_ospeed; + k_termios.c_ospeed = termios_p->c_ospeed; #endif - memcpy (&k_termios.c_cc[0], &termios_p->c_cc[0], - __KERNEL_NCCS * sizeof (cc_t)); + memcpy (&k_termios.c_cc[0], &termios_p->c_cc[0], + __KERNEL_NCCS * sizeof (cc_t)); - retval = ioctl (fd, cmd, &k_termios); + retval = ioctl (fd, cmd, &k_termios); - if (retval == 0 && cmd == TCSETS) + if (retval == 0 && cmd == TCSETS) { - /* The Linux kernel has a bug which silently ignore the invalid - c_cflag on pty. We have to check it here. */ - int save = errno; - retval = ioctl (fd, TCGETS, &k_termios); - if (retval) + /* The Linux kernel has a bug which silently ignore the invalid + c_cflag on pty. We have to check it here. */ + int save = errno; + retval = ioctl (fd, TCGETS, &k_termios); + if (retval) { - /* We cannot verify if the setting is ok. We don't return - an error (?). */ - __set_errno(save); - retval = 0; + /* We cannot verify if the setting is ok. We don't return + an error (?). */ + __set_errno (save); + retval = 0; } - else if ((termios_p->c_cflag & (PARENB | CREAD)) - != (k_termios.c_cflag & (PARENB | CREAD)) - || ((termios_p->c_cflag & CSIZE) - && ((termios_p->c_cflag & CSIZE) - != (k_termios.c_cflag & CSIZE)))) + else if ((termios_p->c_cflag & (PARENB | CREAD)) + != (k_termios.c_cflag & (PARENB | CREAD)) + || ((termios_p->c_cflag & CSIZE) + && ((termios_p->c_cflag & CSIZE) + != (k_termios.c_cflag & CSIZE)))) { - /* It looks like the Linux kernel silently changed the - PARENB/CREAD/CSIZE bits in c_cflag. Report it as an - error. */ - __set_errno(EINVAL); - retval = -1; + /* It looks like the Linux kernel silently changed the + PARENB/CREAD/CSIZE bits in c_cflag. Report it as an + error. */ + __set_errno (EINVAL); + retval = -1; } } - return retval; + return retval; } |