| Dmitry V. Levin | df7aa2b | 2015-01-19 17:02:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org> |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 18 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 19 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 21 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 22 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 23 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 25 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #include <stdio.h> |
| 29 | #include <asm/ioctl.h> |
| 30 | |
| 31 | typedef unsigned short u16; |
| 32 | |
| 33 | static const char * |
| 34 | dir2str(const char *name, u16 dir) |
| 35 | { |
| 36 | switch (dir) { |
| 37 | #define CASE(x) case x: return #x |
| 38 | CASE(_IOC_NONE); |
| 39 | CASE(_IOC_READ); |
| 40 | CASE(_IOC_WRITE); |
| 41 | CASE(_IOC_READ|_IOC_WRITE); |
| 42 | } |
| 43 | |
| 44 | static char buf[3 + sizeof(dir) * 2]; |
| 45 | fprintf(stderr, |
| 46 | "print_ioctlents: WARNING: invalid dir 0x%02x in %s\n", |
| 47 | dir, name); |
| 48 | snprintf(buf, sizeof(buf), "0x%02x", dir); |
| 49 | return buf; |
| 50 | } |
| 51 | |
| 52 | void |
| 53 | print_ioctlent(const char *info, const char *name, |
| 54 | u16 dir, u16 type, u16 nr, u16 size) |
| 55 | { |
| 56 | unsigned int type_nr = |
| 57 | ((unsigned) type << _IOC_TYPESHIFT) | |
| 58 | ((unsigned) nr << _IOC_NRSHIFT); |
| 59 | |
| 60 | if (dir & ~_IOC_DIRMASK) |
| 61 | fprintf(stderr, |
| 62 | "print_ioctlents: WARNING: dir 0x%02x is out of mask 0x%02x in %s\n", |
| 63 | dir, _IOC_DIRMASK, name); |
| 64 | if (type & ~_IOC_TYPEMASK) |
| 65 | fprintf(stderr, |
| 66 | "print_ioctlents: WARNING: type 0x%02x is out of mask 0x%02x in %s\n", |
| 67 | type, _IOC_TYPEMASK, name); |
| 68 | if (nr & ~_IOC_NRMASK) |
| 69 | fprintf(stderr, |
| 70 | "print_ioctlents: WARNING: nr 0x%02x is out of mask 0x%02x in %s\n", |
| 71 | nr, _IOC_NRMASK, name); |
| 72 | if (size & ~_IOC_SIZEMASK) |
| 73 | fprintf(stderr, |
| 74 | "print_ioctlents: WARNING: size 0x%02x is out of mask 0x%02x in %s\n", |
| 75 | size, _IOC_SIZEMASK, name); |
| 76 | |
| 77 | printf("{ \"%s\", \"%s\", %s, 0x%04x, 0x%02x },\n", |
| 78 | info, name, dir2str(name, dir), type_nr, size); |
| 79 | } |