7164b74e64
Add error handling for ioctl(). Reviewed by: -current Obtained from: PAO
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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* Copyright (c) 1995 Andrew McRae. 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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#ifndef lint
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static const char rcsid[] =
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"$Id: pccardmem.c,v 1.10 1999/02/05 16:00:15 kuriyama Exp $";
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#endif /* not lint */
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#include <err.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <pccard/cardinfo.h>
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static void
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usage()
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{
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fprintf(stderr, "usage: pccardc pccardmem [memory-address]\n");
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exit(1);
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}
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int
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pccardmem_main(argc, argv)
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int argc;
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char *argv[];
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{
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char name[64];
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int addr = 0;
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int fd;
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if (argc > 2)
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usage();
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sprintf(name, CARD_DEVICE, 0);
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fd = open(name, O_RDONLY);
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if (fd < 0)
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err(1, "%s", name);
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if (argc == 2) {
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if (sscanf(argv[1], "%x", &addr) != 1)
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errx(1, "arg error");
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}
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if (ioctl(fd, PIOCRWMEM, &addr))
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err(1, "ioctl (PIOCRWMEM)");
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else
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printf("PCCARD Memory address set to 0x%x\n", addr);
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return 0;
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}
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