sbin/kget/kget.c

   1 /*-
   2  * Copyright (c) 1999 Andrzej Bialecki <abial@freebsd.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  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sbin/kget/kget.c,v 1.4.2.2 2001/08/01 08:19:51 obrien Exp $
  27  * $DragonFly: src/sbin/kget/kget.c,v 1.6 2008/06/05 18:06:30 swildner Exp $
  28  */
  29
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <sys/types.h>
  34 #include <sys/sysctl.h>
  35 #include <machine/uc_device.h>
  36
  37 struct uc_device *id;
  38 char *p;
  39
  40 int
  41 main(int argc, char *argv[])
  42 {
  43         int len,i;
  44         char *buf;
  45         const char *mib1="machdep.uc_devlist";
  46         char name[9];
  47         FILE *fout;
  48
  49         if(argc<2) {
  50                 fout=stdout;
  51         } else {
  52                 if(strcmp(argv[1],"-")==0) {
  53                         fout=stdout;
  54                 } else {
  55                         fout=fopen(argv[1],"w");
  56                         if(fout==NULL) {
  57                                 perror("opening output file");
  58                                 exit(1);
  59                         }
  60                 }
  61         }
  62
  63         /* We use sysctlbyname, because the oid is unknown (OID_AUTO) */
  64
  65         /* Print the changes made to ISA devices */
  66         /* get the buffer size */
  67         i=sysctlbyname(mib1,NULL,&len,NULL,0);
  68         if(i) {
  69                 perror("buffer sizing");
  70                 exit(-1);
  71         }
  72         buf=malloc(len*sizeof(char));
  73         if (buf==NULL) {
  74                 perror("malloc");
  75                 exit(-1);
  76         }
  77         i=sysctlbyname(mib1,buf,&len,NULL,0);
  78         if(i) {
  79                 perror("retrieving data");
  80                 exit(-1);
  81         }
  82         i=0;
  83         while(i<len) {
  84                 id=(struct uc_device *)(buf+i);
  85                 p=(buf+i+sizeof(struct uc_device));
  86                 strncpy(name,p,8);
  87                 if(!id->id_enabled) {
  88                         fprintf(fout,"disable %s%d\n",name,id->id_unit);
  89                 } else {
  90                         fprintf(fout,"enable %s%d\n",name,id->id_unit);
  91                         if(id->id_iobase>0) {
  92                                 fprintf(fout,"port %s%d %#x\n",name,id->id_unit,
  93                                         id->id_iobase);
  94                         }
  95                         if(id->id_irq>0) {
  96                                 fprintf(fout,"irq %s%d %d\n",name,id->id_unit,
  97                                         ffs(id->id_irq)-1);
  98                         }
  99                         if(id->id_drq>0) {
 100                                 fprintf(fout,"drq %s%d %d\n",name,id->id_unit,
 101                                         id->id_drq);
 102                         }
 103                         if (id->id_maddr != NULL) {
 104                                 fprintf(fout,"iomem %s%d %p\n",name,id->id_unit,
 105                                         id->id_maddr);
 106                         }
 107                         if(id->id_msize>0) {
 108                                 fprintf(fout,"iosize %s%d %d\n",name,id->id_unit,
 109                                         id->id_msize);
 110                         }
 111                         fprintf(fout,"flags %s%d %#x\n",name,id->id_unit,
 112                                 id->id_flags);
 113                 }
 114                 i+=sizeof(struct uc_device)+8;
 115         }
 116         free(buf);
 117         fprintf(fout,"quit\n");
 118         fclose(fout);
 119         exit(0);
 120 }