c433f4617f
cygerrno.h. * include/cygwin/config.h (__DYNAMIC_REENT__): Define. * include/cygwin/version.h: Bump API minor version. * cygwin.din: Export __getreent * cygerrno.h: Include errno.h. Fix places where _impure_ptr is used directly to store the errno value. * debug.cc (__set_errno): Ditto. * errno.cc: Remove _RRENT_ONLY define to get errno.cc compiled. * signal.cc: Rename _reent_clib to _REENT throughout. * thread.h (reent_clib): Remove prototype. * thread.cc (reent_clib): Rename reent_clib to __getreent. Return _impure_ptr until MTinterface is initialized. (reent_winsup): Fix a possible SEGV when _r == NULL. Return NULL instead. * MTinterface::fixup_after_fork: Switch reent back to _impure_ptr to keep signal handling running when fork is called from a thread other than the mainthread.
65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
/* ioctl.cc: ioctl routines.
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Copyright 1996, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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Written by Doug Evans of Cygnus Support
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dje@cygnus.com
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include "winsup.h"
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#include <sys/ioctl.h>
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#include "cygerrno.h"
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#include "security.h"
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#include "fhandler.h"
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#include "path.h"
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#include "dtable.h"
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#include "cygheap.h"
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#include "sigproc.h"
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#include <sys/termios.h>
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extern "C" int
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ioctl (int fd, int cmd, ...)
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{
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sigframe thisframe (mainthread);
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cygheap_fdget cfd (fd);
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if (cfd < 0)
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return -1;
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/* check for optional mode argument */
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va_list ap;
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va_start (ap, cmd);
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char *argp = va_arg (ap, char *);
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va_end (ap);
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debug_printf ("fd %d, cmd %x", fd, cmd);
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int res;
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if (cfd->is_tty () && cfd->get_device () != FH_PTYM)
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switch (cmd)
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{
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case TCGETA:
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res = tcgetattr (fd, (struct termios *) argp);
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goto out;
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case TCSETA:
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res = tcsetattr (fd, TCSANOW, (struct termios *) argp);
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goto out;
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case TCSETAW:
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res = tcsetattr (fd, TCSADRAIN, (struct termios *) argp);
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goto out;
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case TCSETAF:
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res = tcsetattr (fd, TCSAFLUSH, (struct termios *) argp);
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goto out;
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}
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res = cfd->ioctl (cmd, argp);
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out:
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debug_printf ("returning %d", res);
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return res;
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}
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