80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
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/*
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* Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <asm/ioctl.h>
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typedef unsigned short u16;
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static const char *
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dir2str(const char *name, u16 dir)
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{
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switch (dir) {
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#define CASE(x) case x: return #x
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CASE(_IOC_NONE);
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CASE(_IOC_READ);
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CASE(_IOC_WRITE);
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CASE(_IOC_READ|_IOC_WRITE);
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}
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static char buf[3 + sizeof(dir) * 2];
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fprintf(stderr,
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"print_ioctlents: WARNING: invalid dir 0x%02x in %s\n",
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dir, name);
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snprintf(buf, sizeof(buf), "0x%02x", dir);
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return buf;
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}
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void
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print_ioctlent(const char *info, const char *name,
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u16 dir, u16 type, u16 nr, u16 size)
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{
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unsigned int type_nr =
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((unsigned) type << _IOC_TYPESHIFT) |
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((unsigned) nr << _IOC_NRSHIFT);
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if (dir & ~_IOC_DIRMASK)
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fprintf(stderr,
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"print_ioctlents: WARNING: dir 0x%02x is out of mask 0x%02x in %s\n",
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dir, _IOC_DIRMASK, name);
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if (type & ~_IOC_TYPEMASK)
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fprintf(stderr,
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"print_ioctlents: WARNING: type 0x%02x is out of mask 0x%02x in %s\n",
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type, _IOC_TYPEMASK, name);
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if (nr & ~_IOC_NRMASK)
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fprintf(stderr,
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"print_ioctlents: WARNING: nr 0x%02x is out of mask 0x%02x in %s\n",
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nr, _IOC_NRMASK, name);
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if (size & ~_IOC_SIZEMASK)
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fprintf(stderr,
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"print_ioctlents: WARNING: size 0x%02x is out of mask 0x%02x in %s\n",
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size, _IOC_SIZEMASK, name);
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printf("{ \"%s\", \"%s\", %s, 0x%04x, 0x%02x },\n",
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info, name, dir2str(name, dir), type_nr, size);
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}
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