newdisk.c revision 1.5.4.1
1 /* $NetBSD: newdisk.c,v 1.5.4.1 2011/05/31 03:04:22 rmind Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 Minoura Makoto 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Minoura Makoto. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Create the disk mark for x68k SCSI IPL. 35 * It used to be a shell/awk script, but is rewritten in order to be fit with 36 * the install kernel. 37 * 38 * Usage: /usr/mdec/newdisk [-vnfc] [-m /usr/mdec/mboot] /dev/rsd?c 39 */ 40 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <err.h> 45 #include <fcntl.h> 46 #include <unistd.h> 47 #include <util.h> 48 #include <sys/param.h> 49 #include <sys/disklabel.h> 50 #include <sys/dkio.h> 51 #include <sys/ioctl.h> 52 53 const char *mboot = MBOOT; 54 char dev[MAXPATHLEN]; 55 char buf[4096 + 1]; 56 57 const char copyright[] = "NetBSD/x68k SCSI Primary Boot. "; 58 59 int verbose = 0, dry_run = 0, force = 0, check_only = 0, mark_only = 0; 60 61 void usage(void) __attribute__((__noreturn__)); 62 int main(int, char *[]); 63 64 void 65 usage(void) 66 { 67 fprintf(stderr, 68 "Usage: %s [-v] [-n] [-f] [-c] [-m /usr/mdec/mboot] " 69 "/dev/rsdXc\n", getprogname()); 70 exit(1); 71 /* NOTREACHED */ 72 } 73 74 int 75 main(int argc, char *argv[]) 76 { 77 int ch; 78 int fd; 79 struct disklabel label; 80 81 while ((ch = getopt(argc, argv, "vnfcm:p")) != -1) { 82 switch (ch) { 83 case 'v': 84 verbose = 1; 85 break; 86 case 'n': 87 dry_run = 1; 88 break; 89 case 'f': 90 force = 1; 91 break; 92 case 'c': 93 check_only = 1; 94 break; 95 case 'm': 96 mboot = optarg; 97 break; 98 case 'p': 99 mark_only = 1; 100 break; 101 default: 102 usage(); 103 } 104 } 105 argc -= optind; 106 argv += optind; 107 108 if (argc != 1) 109 usage(); 110 111 fd = opendisk(argv[0], O_RDONLY, dev, MAXPATHLEN, 0); 112 if (fd < 0) 113 err(1, "opening %s", dev); 114 if (access(mboot, R_OK) < 0) 115 err(1, "checking %s", mboot); 116 117 if (read(fd, buf, 512) < 0) 118 err(1, "reading %s", dev); 119 if (strncmp(buf, "X68SCSI1", 8) == 0 && !force) 120 errx(1, "%s is already marked. " 121 "Use -f to overwrite the existing mark.", dev); 122 if (check_only) 123 return 0; 124 125 if (verbose) 126 fprintf(stderr, "Inspecting %s... ", dev); 127 128 if (ioctl(fd, DIOCGDINFO, &label) < 0) 129 err(1, "inspecting %s", dev); 130 close(fd); 131 if (label.d_secsize != 512) 132 errx(1, "This type of disk is not supported by NetBSD."); 133 134 if (verbose) 135 fprintf(stderr, "total number of sector is %d.\n", 136 label.d_secperunit); 137 138 if (verbose) 139 fprintf(stderr, "Building disk mark... "); 140 memset(buf, 0, 3072); 141 #define n label.d_secperunit 142 sprintf(buf, "X68SCSI1%c%c%c%c%c%c%c%c%s", 143 2, 0, 144 (n/16777216)%256, (n/65536)%256, (n/256)%256, n%256, 145 1, 0, copyright); 146 #undef n 147 if (verbose) 148 fprintf(stderr, "done.\n"); 149 150 if (verbose) 151 fprintf(stderr, "Merging %s... ", mboot); 152 fd = open(mboot, O_RDONLY); 153 if (fd < 0) 154 err(1, "opening %s", mboot); 155 if (read(fd, buf+1024, 1024) < 0) 156 err(1, "reading %s", mboot); 157 close(fd); 158 if (verbose) 159 fprintf(stderr, "done.\n"); 160 161 if (!mark_only) { 162 if (verbose) 163 fprintf(stderr, 164 "Creating an empty partition table... "); 165 #define n (label.d_secperunit/2) 166 sprintf(buf+2048, 167 "X68K%c%c%c%c%c%c%c%c%c%c%c%c", 168 0, 0, 0, 32, 169 (n/16777215)%256, (n/65536)%256, (n/256)%256, n%256, 170 (n/16777215)%256, (n/65536)%256, (n/256)%256, n%256); 171 #undef n 172 if (verbose) 173 fprintf(stderr, "done.\n"); 174 } 175 176 if (dry_run) { 177 char filename[MAXPATHLEN] = "/tmp/diskmarkXXXXX"; 178 fd = mkstemp(filename); 179 if (fd < 0) 180 err(1, "opening %s", filename); 181 if (write(fd, buf, 4096) < 0) 182 err(1, "writing %s", filename); 183 close(fd); 184 fprintf(stderr, "Disk mark is kept in %s.\n", filename); 185 } else { 186 int mode = 1; 187 188 if (verbose) 189 fprintf(stderr, "Writing... "); 190 fd = open(dev, O_WRONLY); 191 if (fd < 0) 192 err(1, "opening %s", dev); 193 if (ioctl(fd, DIOCWLABEL, (char *)&mode) < 0) 194 err(1, "DIOCWLABEL %s", dev); 195 if (write(fd, buf, 4096) != 4096) { 196 mode = 0; 197 ioctl(fd, DIOCWLABEL, (char *)&mode); 198 err(1, "DIOCWLABEL %s", dev); 199 } 200 ioctl(fd, DIOCWLABEL, (char *)&mode); 201 if (verbose) 202 fprintf(stderr, "done.\n"); 203 close(fd); 204 } 205 206 return 0; 207 } 208
Indexes created Tue Oct 21 16:10:11 GMT 2025