| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 1998 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, write to the Free |
| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 17 | 02111-1307 USA. */ |
| 18 | |
| 19 | #include <stdarg.h> |
| 20 | #include <termios.h> |
| 21 | #include <unistd.h> |
| 22 | #include <sys/ioctl.h> |
| 23 | #include <sys/syscall.h> |
| 24 | |
| 25 | |
| 26 | |
| 27 | /* The user-visible size of struct termios has changed. Catch ioctl calls |
| 28 | using the new-style struct termios, and translate them to old-style. */ |
| 29 | |
| 30 | #define __NR___syscall_ioctl __NR_ioctl |
| 31 | static __always_inline |
| 32 | _syscall3(int, __syscall_ioctl, int, fd, unsigned long int, request, void *, arg) |
| 33 | |
| 34 | |
| 35 | int ioctl (int fd, unsigned long int request, ...) |
| 36 | { |
| 37 | void *arg; |
| 38 | va_list ap; |
| 39 | int result; |
| 40 | |
| 41 | va_start (ap, request); |
| 42 | arg = va_arg (ap, void *); |
| 43 | |
| 44 | switch (request) |
| 45 | { |
| 46 | case TCGETS: |
| 47 | result = tcgetattr (fd, (struct termios *) arg); |
| 48 | break; |
| 49 | |
| 50 | case TCSETS: |
| 51 | result = tcsetattr (fd, TCSANOW, (struct termios *) arg); |
| 52 | break; |
| 53 | |
| 54 | case TCSETSW: |
| 55 | result = tcsetattr (fd, TCSADRAIN, (struct termios *) arg); |
| 56 | break; |
| 57 | |
| 58 | case TCSETSF: |
| 59 | result = tcsetattr (fd, TCSAFLUSH, (struct termios *) arg); |
| 60 | break; |
| 61 | |
| 62 | default: |
| 63 | result = __syscall_ioctl (fd, request, arg); |
| 64 | break; |
| 65 | } |
| 66 | |
| 67 | va_end (ap); |
| 68 | |
| 69 | return result; |
| 70 | } |
| 71 | libc_hidden_def(ioctl) |