mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 20:21:07 +00:00
8c4796197c
* iconv/gconv_int.h (gconv_module): Add new element from_regex_mem. * iconv/gconv_conf.c (module_compare): Make s1 and s2 const. (detect_conflict): New function. (add_alias): Call detect_conflict to see whether there is already a module for the new name. (add_module): Make sure there is no alias for the new name. (read_conf_file): Call add_alias with new argument. (__gconv_read_conf): Don't destroy module tree immediately after walking it. We need it to test the internal conversions for conflicts. * iconv/gconv_db.c (find_derivation): Don't allocate memory for regular expression. There is now room in the module descriptor. (free_mem): Don't free memory for regular expression.
121 lines
3.6 KiB
C
121 lines
3.6 KiB
C
/* Copyright (C) 1993, 1996, 1997, 1998 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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.
|
|
|
|
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. */
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <termios.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/types.h>
|
|
|
|
/* The difference here is that the termios structure used in the
|
|
kernel is not the same as we use in the libc. Therefore we must
|
|
translate it here. */
|
|
#include <kernel_termios.h>
|
|
|
|
|
|
/* This is a gross hack around a kernel bug. If the cfsetispeed functions
|
|
is called with the SPEED argument set to zero this means use the same
|
|
speed as for output. But we don't have independent input and output
|
|
speeds and therefore cannot record this.
|
|
|
|
We use an unused bit in the `c_iflag' field to keep track of this
|
|
use of `cfsetispeed'. The value here must correspond to the one used
|
|
in `speed.c'. */
|
|
#if !defined _HAVE_C_ISPEED || !defined _HAVE_C_OSPEED
|
|
# define IBAUD0 020000000000
|
|
#else
|
|
/* If we have separate values for input and output speed don't bother
|
|
with this. Define the value as zero so the compiler sees we don't
|
|
have to do the AND below. */
|
|
# define IBAUD0 0
|
|
#endif
|
|
|
|
|
|
/* Set the state of FD to *TERMIOS_P. */
|
|
int
|
|
tcsetattr (fd, optional_actions, termios_p)
|
|
int fd;
|
|
int optional_actions;
|
|
const struct termios *termios_p;
|
|
{
|
|
struct __kernel_termios k_termios;
|
|
unsigned long int cmd;
|
|
int retval;
|
|
|
|
switch (optional_actions)
|
|
{
|
|
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;
|
|
#ifdef _HAVE_C_ISPEED
|
|
k_termios.c_ispeed = termios_p->c_ispeed;
|
|
#endif
|
|
#ifdef _HAVE_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));
|
|
|
|
retval = __ioctl (fd, cmd, &k_termios);
|
|
|
|
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)
|
|
{
|
|
/* 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))))
|
|
{
|
|
/* 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;
|
|
}
|