mkboot.c revision 1.7
1 /* $NetBSD: mkboot.c,v 1.7 2004/11/28 11:14:41 jmc 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 1.7 2004/11/28 11:14:41 jmc Exp $"); 51 #endif /* not lint */ 52 53 #include <sys/param.h> 54 #include <sys/file.h> 55 #include <sys/stat.h> 56 #include <sys/endian.h> 57 58 #include <time.h> 59 60 #include <ctype.h> 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <unistd.h> 65 66 #include "volhdr.h" 67 68 #define LIF_NUMDIR 8 69 70 #define LIF_VOLSTART 0 71 #define LIF_VOLSIZE sizeof(struct lifvol) 72 #define LIF_DIRSTART 512 73 #define LIF_DIRSIZE (LIF_NUMDIR * sizeof(struct lifdir)) 74 #define LIF_FILESTART 8192 75 76 #define btolifs(b) (((b) + (SECTSIZE - 1)) / SECTSIZE) 77 #define lifstob(s) ((s) * SECTSIZE) 78 79 int lpflag; 80 int loadpoint; 81 struct load ld; 82 struct lifvol lifv; 83 struct lifdir lifd[LIF_NUMDIR]; 84 85 int main(int, char **); 86 void bcddate(char *, char *); 87 char *lifname(char *); 88 int putfile(char *, int); 89 void usage(void); 90 91 /* 92 * Old Format: 93 * sector 0: LIF volume header (40 bytes) 94 * sector 1: <unused> 95 * sector 2: LIF directory (8 x 32 == 256 bytes) 96 * sector 3-: LIF file 0, LIF file 1, etc. 97 * where sectors are 256 bytes. 98 * 99 * New Format: 100 * sector 0: LIF volume header (40 bytes) 101 * sector 1: <unused> 102 * sector 2: LIF directory (8 x 32 == 256 bytes) 103 * sector 3: <unused> 104 * sector 4-31: disklabel (~300 bytes right now) 105 * sector 32-: LIF file 0, LIF file 1, etc. 106 */ 107 int 108 main(int argc, char **argv) 109 { 110 char *n1, *n2, *n3; 111 int n, to; 112 int count; 113 114 --argc; 115 ++argv; 116 if (argc == 0) 117 usage(); 118 if (!strcmp(argv[0], "-l")) { 119 argv++; 120 argc--; 121 if (argc == 0) 122 usage(); 123 sscanf(argv[0], "0x%x", &loadpoint); 124 lpflag++; 125 argv++; 126 argc--; 127 } 128 if (!lpflag || argc == 0) 129 usage(); 130 n1 = argv[0]; 131 argv++; 132 argc--; 133 if (argc == 0) 134 usage(); 135 if (argc > 1) { 136 n2 = argv[0]; 137 argv++; 138 argc--; 139 if (argc > 1) { 140 n3 = argv[0]; 141 argv++; 142 argc--; 143 } else 144 n3 = NULL; 145 } else 146 n2 = n3 = NULL; 147 148 to = open(argv[0], O_WRONLY | O_TRUNC | O_CREAT, 0644); 149 if (to < 0) { 150 perror("open"); 151 exit(1); 152 } 153 /* clear possibly unused directory entries */ 154 strncpy(lifd[1].dir_name, " ", 10); 155 lifd[1].dir_type = htobe16(-1); 156 lifd[1].dir_addr = htobe32(0); 157 lifd[1].dir_length = htobe32(0); 158 lifd[1].dir_flag = htobe16(0xFF); 159 lifd[1].dir_exec = htobe32(0); 160 lifd[7] = lifd[6] = lifd[5] = lifd[4] = lifd[3] = lifd[2] = lifd[1]; 161 /* record volume info */ 162 lifv.vol_id = htobe16(VOL_ID); 163 strncpy(lifv.vol_label, "BOOT43", 6); 164 lifv.vol_addr = htobe32(btolifs(LIF_DIRSTART)); 165 lifv.vol_oct = htobe16(VOL_OCT); 166 lifv.vol_dirsize = htobe32(btolifs(LIF_DIRSIZE)); 167 lifv.vol_version = htobe16(1); 168 /* output bootfile one */ 169 lseek(to, LIF_FILESTART, SEEK_SET); 170 count = putfile(n1, to); 171 n = btolifs(count); 172 strcpy(lifd[0].dir_name, lifname(n1)); 173 lifd[0].dir_type = htobe16(DIR_TYPE); 174 lifd[0].dir_addr = htobe32(btolifs(LIF_FILESTART)); 175 lifd[0].dir_length = htobe32(n); 176 bcddate(n1, lifd[0].dir_toc); 177 lifd[0].dir_flag = htobe16(DIR_FLAG); 178 lifd[0].dir_exec = htobe32(loadpoint); 179 lifv.vol_length = htobe32(be32toh(lifd[0].dir_addr) + 180 be32toh(lifd[0].dir_length)); 181 /* if there is an optional second boot program, output it */ 182 if (n2) { 183 lseek(to, LIF_FILESTART+lifstob(n), SEEK_SET); 184 count = putfile(n2, to); 185 n = btolifs(count); 186 strcpy(lifd[1].dir_name, lifname(n2)); 187 lifd[1].dir_type = htobe16(DIR_TYPE); 188 lifd[1].dir_addr = htobe32(lifv.vol_length); 189 lifd[1].dir_length = htobe32(n); 190 bcddate(n2, lifd[1].dir_toc); 191 lifd[1].dir_flag = htobe16(DIR_FLAG); 192 lifd[1].dir_exec = htobe32(loadpoint); 193 lifv.vol_length = htobe32(be32toh(lifd[1].dir_addr) + 194 be32toh(lifd[1].dir_length)); 195 } 196 /* ditto for three */ 197 if (n3) { 198 lseek(to, LIF_FILESTART+lifstob(lifd[0].dir_length+n), 199 SEEK_SET); 200 count = putfile(n3, to); 201 n = btolifs(count); 202 strcpy(lifd[2].dir_name, lifname(n3)); 203 lifd[2].dir_type = htobe16(DIR_TYPE); 204 lifd[2].dir_addr = htobe32(lifv.vol_length); 205 lifd[2].dir_length = htobe32(n); 206 bcddate(n3, lifd[2].dir_toc); 207 lifd[2].dir_flag = htobe16(DIR_FLAG); 208 lifd[2].dir_exec = htobe32(loadpoint); 209 lifv.vol_length = htobe32(be32toh(lifd[2].dir_addr) + 210 be32toh(lifd[2].dir_length)); 211 } 212 /* output volume/directory header info */ 213 lseek(to, LIF_VOLSTART, SEEK_SET); 214 write(to, &lifv, LIF_VOLSIZE); 215 lseek(to, LIF_DIRSTART, SEEK_SET); 216 write(to, lifd, LIF_DIRSIZE); 217 exit(0); 218 } 219 220 int 221 putfile(from, to) 222 char *from; 223 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 03:10:08 GMT 2025