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 err;
  44         size_t i, len;
  45         char *buf;
  46         const char *mib1="machdep.uc_devlist";
  47         char name[9];
  48         FILE *fout;
  49
  50         if(argc<2) {
  51                 fout=stdout;
  52         } else {
  53                 if(strcmp(argv[1],"-")==0) {
  54                         fout=stdout;
  55                 } else {
  56                         fout=fopen(argv[1],"w");
  57                         if(fout==NULL) {
  58                                 perror("opening output file");
  59                                 exit(1);
  60                         }
  61                 }
  62         }
  63
  64         /* We use sysctlbyname, because the oid is unknown (OID_AUTO) */
  65
  66         /* Print the changes made to ISA devices */
  67         /* get the buffer size */
  68         err=sysctlbyname(mib1,NULL,&len,NULL,0);
  69         if(err) {
  70                 perror("buffer sizing");
  71                 exit(-1);
  72         }
  73         buf=malloc(len*sizeof(char));
  74         if (buf==NULL) {
  75                 perror("malloc");
  76                 exit(-1);
  77         }
  78         err=sysctlbyname(mib1,buf,&len,NULL,0);
  79         if(err) {
  80                 perror("retrieving data");
  81                 exit(-1);
  82         }
  83         i=0;
  84         while(i<len) {
  85                 id=(struct uc_device *)(buf+i);
  86                 p=(buf+i+sizeof(struct uc_device));
  87                 strncpy(name,p,8);
  88                 if(!id->id_enabled) {
  89                         fprintf(fout,"disable %s%d\n",name,id->id_unit);
  90                 } else {
  91                         fprintf(fout,"enable %s%d\n",name,id->id_unit);
  92                         if(id->id_iobase>0) {
  93                                 fprintf(fout,"port %s%d %#x\n",name,id->id_unit,
  94                                         id->id_iobase);
  95                         }
  96                         if(id->id_irq>0) {
  97                                 fprintf(fout,"irq %s%d %d\n",name,id->id_unit,
  98                                         ffs(id->id_irq)-1);
  99                         }
 100                         if(id->id_drq>0) {
 101                                 fprintf(fout,"drq %s%d %d\n",name,id->id_unit,
 102                                         id->id_drq);
 103                         }
 104                         if (id->id_maddr != NULL) {
 105                                 fprintf(fout,"iomem %s%d %p\n",name,id->id_unit,
 106                                         id->id_maddr);
 107                         }
 108                         if(id->id_msize>0) {
 109                                 fprintf(fout,"iosize %s%d %d\n",name,id->id_unit,
 110                                         id->id_msize);
 111                         }
 112                         fprintf(fout,"flags %s%d %#x\n",name,id->id_unit,
 113                                 id->id_flags);
 114                 }
 115                 i+=sizeof(struct uc_device)+8;
 116         }
 117         free(buf);
 118         fprintf(fout,"quit\n");
 119         fclose(fout);
 120         exit(0);
 121 }