mkboot.c revision 1.10
1 /* $NetBSD: mkboot.c,v 1.10 2006/06/18 05:53:51 gdamore Exp $ 2 3 /* 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)mkboot.c 8.1 (Berkeley) 7/15/93 32 */ 33 34 #if HAVE_NBTOOL_CONFIG_H 35 #include "nbtool_config.h" 36 #endif 37 38 #include <sys/cdefs.h> 39 40 #ifndef lint 41 __COPYRIGHT( 42 "@(#) Copyright (c) 1990, 1993\n\ 43 The Regents of the University of California. All rights reserved.\n"); 44 #endif /* not lint */ 45 46 #ifndef lint 47 #ifdef notdef 48 static char sccsid[] = "@(#)mkboot.c 7.2 (Berkeley) 12/16/90"; 49 #endif 50 __RCSID("$NetBSD: mkboot.c,v 1.10 2006/06/18 05:53:51 gdamore Exp $"); 51 #endif /* not lint */ 52 53 #include <sys/param.h> 54 #include <sys/file.h> 55 #include <sys/stat.h> 56 #ifndef HAVE_NBTOOL_CONFIG_H 57 #include <sys/endian.h> 58 #endif 59 60 #include <time.h> 61 62 #include <ctype.h> 63 #include <stdio.h> 64 #include <stdlib.h> 65 #include <string.h> 66 #include <unistd.h> 67 68 #include "volhdr.h" 69 70 #define LIF_NUMDIR 8 71 72 #define LIF_VOLSTART 0 73 #define LIF_VOLSIZE sizeof(struct lifvol) 74 #define LIF_DIRSTART 512 75 #define LIF_DIRSIZE (LIF_NUMDIR * sizeof(struct lifdir)) 76 #define LIF_FILESTART 8192 77 78 #define btolifs(b) (((b) + (SECTSIZE - 1)) / SECTSIZE) 79 #define lifstob(s) ((s) * SECTSIZE) 80 81 int lpflag; 82 int loadpoint; 83 struct load ld; 84 struct lifvol lifv; 85 struct lifdir lifd[LIF_NUMDIR]; 86 87 int main(int, char **); 88 void bcddate(char *, char *); 89 char *lifname(char *); 90 int putfile(char *, int); 91 void usage(void); 92 93 /* 94 * Old Format: 95 * sector 0: LIF volume header (40 bytes) 96 * sector 1: <unused> 97 * sector 2: LIF directory (8 x 32 == 256 bytes) 98 * sector 3-: LIF file 0, LIF file 1, etc. 99 * where sectors are 256 bytes. 100 * 101 * New Format: 102 * sector 0: LIF volume header (40 bytes) 103 * sector 1: <unused> 104 * sector 2: LIF directory (8 x 32 == 256 bytes) 105 * sector 3: <unused> 106 * sector 4-31: disklabel (~300 bytes right now) 107 * sector 32-: LIF file 0, LIF file 1, etc. 108 */ 109 int 110 main(int argc, char **argv) 111 { 112 char *n1, *n2, *n3; 113 int n, to; 114 int count; 115 116 --argc; 117 ++argv; 118 if (argc == 0) 119 usage(); 120 if (!strcmp(argv[0], "-l")) { 121 argv++; 122 argc--; 123 if (argc == 0) 124 usage(); 125 sscanf(argv[0], "0x%x", &loadpoint); 126 lpflag++; 127 argv++; 128 argc--; 129 } 130 if (!lpflag || argc == 0) 131 usage(); 132 n1 = argv[0]; 133 argv++; 134 argc--; 135 if (argc == 0) 136 usage(); 137 if (argc > 1) { 138 n2 = argv[0]; 139 argv++; 140 argc--; 141 if (argc > 1) { 142 n3 = argv[0]; 143 argv++; 144 argc--; 145 } else 146 n3 = NULL; 147 } else 148 n2 = n3 = NULL; 149 150 to = open(argv[0], O_WRONLY | O_TRUNC | O_CREAT, 0644); 151 if (to < 0) { 152 perror("open"); 153 exit(1); 154 } 155 /* clear possibly unused directory entries */ 156 strncpy(lifd[1].dir_name, " ", 10); 157 lifd[1].dir_type = htobe16(-1); 158 lifd[1].dir_addr = htobe32(0); 159 lifd[1].dir_length = htobe32(0); 160 lifd[1].dir_flag = htobe16(0xFF); 161 lifd[1].dir_exec = htobe32(0); 162 lifd[7] = lifd[6] = lifd[5] = lifd[4] = lifd[3] = lifd[2] = lifd[1]; 163 /* record volume info */ 164 lifv.vol_id = htobe16(VOL_ID); 165 strncpy(lifv.vol_label, "BOOT43", 6); 166 lifv.vol_addr = htobe32(btolifs(LIF_DIRSTART)); 167 lifv.vol_oct = htobe16(VOL_OCT); 168 lifv.vol_dirsize = htobe32(btolifs(LIF_DIRSIZE)); 169 lifv.vol_version = htobe16(1); 170 /* output bootfile one */ 171 lseek(to, LIF_FILESTART, SEEK_SET); 172 count = putfile(n1, to); 173 n = btolifs(count); 174 strcpy(lifd[0].dir_name, lifname(n1)); 175 lifd[0].dir_type = htobe16(DIR_TYPE); 176 lifd[0].dir_addr = htobe32(btolifs(LIF_FILESTART)); 177 lifd[0].dir_length = htobe32(n); 178 bcddate(n1, lifd[0].dir_toc); 179 lifd[0].dir_flag = htobe16(DIR_FLAG); 180 lifd[0].dir_exec = htobe32(loadpoint); 181 lifv.vol_length = htobe32(be32toh(lifd[0].dir_addr) + 182 be32toh(lifd[0].dir_length)); 183 /* if there is an optional second boot program, output it */ 184 if (n2) { 185 lseek(to, LIF_FILESTART+lifstob(n), SEEK_SET); 186 count = putfile(n2, to); 187 n = btolifs(count); 188 strcpy(lifd[1].dir_name, lifname(n2)); 189 lifd[1].dir_type = htobe16(DIR_TYPE); 190 lifd[1].dir_addr = htobe32(lifv.vol_length); 191 lifd[1].dir_length = htobe32(n); 192 bcddate(n2, lifd[1].dir_toc); 193 lifd[1].dir_flag = htobe16(DIR_FLAG); 194 lifd[1].dir_exec = htobe32(loadpoint); 195 lifv.vol_length = htobe32(be32toh(lifd[1].dir_addr) + 196 be32toh(lifd[1].dir_length)); 197 } 198 /* ditto for three */ 199 if (n3) { 200 lseek(to, LIF_FILESTART+lifstob(lifd[0].dir_length+n), 201 SEEK_SET); 202 count = putfile(n3, to); 203 n = btolifs(count); 204 strcpy(lifd[2].dir_name, lifname(n3)); 205 lifd[2].dir_type = htobe16(DIR_TYPE); 206 lifd[2].dir_addr = htobe32(lifv.vol_length); 207 lifd[2].dir_length = htobe32(n); 208 bcddate(n3, lifd[2].dir_toc); 209 lifd[2].dir_flag = htobe16(DIR_FLAG); 210 lifd[2].dir_exec = htobe32(loadpoint); 211 lifv.vol_length = htobe32(be32toh(lifd[2].dir_addr) + 212 be32toh(lifd[2].dir_length)); 213 } 214 /* output volume/directory header info */ 215 lseek(to, LIF_VOLSTART, SEEK_SET); 216 write(to, &lifv, LIF_VOLSIZE); 217 lseek(to, LIF_DIRSTART, SEEK_SET); 218 write(to, lifd, LIF_DIRSIZE); 219 exit(0); 220 } 221 222 int 223 putfile(char *from, int to) 224 { 225 int fd; 226 struct stat statb; 227 int nr; 228 void *bp; 229 230 if ((fd = open(from, 0)) < 0) { 231 printf("error: unable to open file %s\n", from); 232 exit(1); 233 } 234 fstat(fd, &statb); 235 ld.address = htobe32(loadpoint); 236 ld.count = htobe32(statb.st_size); 237 bp = malloc(statb.st_size); 238 if ((nr = read(fd, bp, statb.st_size)) < 0) { 239 printf("error: reading from file %s\n", from); 240 exit(1); 241 } 242 (void)close(fd); 243 write(to, &ld, sizeof(ld)); 244 write(to, bp, statb.st_size); 245 free(bp); 246 return (statb.st_size + sizeof(ld)); 247 } 248 249 void 250 usage(void) 251 { 252 253 fprintf(stderr, 254 "usage: mkboot -l loadpoint prog1 [ prog2 ] outfile\n"); 255 exit(1); 256 } 257 258 char * 259 lifname(char *str) 260 { 261 static char lname[10] = "SYS_XXXXX"; 262 char *cp; 263 int i; 264 265 if ((cp = strrchr(str, '/')) != NULL) 266 str = ++cp; 267 for (i = 4; i < 9; i++) { 268 if (islower(*str)) 269 lname[i] = toupper(*str); 270 else if (isalnum(*str) || *str == '_') 271 lname[i] = *str; 272 else 273 break; 274 str++; 275 } 276 for ( ; i < 10; i++) 277 lname[i] = '\0'; 278 return(lname); 279 } 280 281 void 282 bcddate(char *name, char *toc) 283 { 284 struct stat statb; 285 struct tm *tm; 286 287 stat(name, &statb); 288 tm = localtime(&statb.st_ctime); 289 *toc = ((tm->tm_mon+1) / 10) << 4; 290 *toc++ |= (tm->tm_mon+1) % 10; 291 *toc = (tm->tm_mday / 10) << 4; 292 *toc++ |= tm->tm_mday % 10; 293 *toc = (tm->tm_year / 10) << 4; 294 *toc++ |= tm->tm_year % 10; 295 *toc = (tm->tm_hour / 10) << 4; 296 *toc++ |= tm->tm_hour % 10; 297 *toc = (tm->tm_min / 10) << 4; 298 *toc++ |= tm->tm_min % 10; 299 *toc = (tm->tm_sec / 10) << 4; 300 *toc |= tm->tm_sec % 10; 301 } 302
Indexes created Mon Sep 29 21:09:56 GMT 2025