mkboot.c revision 1.13
1 /* $NetBSD: mkboot.c,v 1.13 2024/02/09 16:18:12 christos 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 1.13 2024/02/09 16:18:12 christos 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 <err.h> 64 #include <stdio.h> 65 #include <stdlib.h> 66 #include <string.h> 67 #include <unistd.h> 68 69 #include "volhdr.h" 70 71 #define LIF_NUMDIR 8 72 73 #define LIF_VOLSTART 0 74 #define LIF_VOLSIZE sizeof(struct lifvol) 75 #define LIF_DIRSTART 512 76 #define LIF_DIRSIZE (LIF_NUMDIR * sizeof(struct lifdir)) 77 #define LIF_FILESTART 8192 78 79 #define btolifs(b) (((b) + (SECTSIZE - 1)) / SECTSIZE) 80 #define lifstob(s) ((s) * SECTSIZE) 81 82 int loadpoint = -1; 83 struct load ld; 84 struct lifvol lifv; 85 struct lifdir lifd[LIF_NUMDIR]; 86 time_t repro_epoch = 0; 87 88 int main(int, char **); 89 void bcddate(char *, char *); 90 char *lifname(char *); 91 int putfile(char *, int); 92 void usage(void); 93 94 /* 95 * Old Format: 96 * sector 0: LIF volume header (40 bytes) 97 * sector 1: <unused> 98 * sector 2: LIF directory (8 x 32 == 256 bytes) 99 * sector 3-: LIF file 0, LIF file 1, etc. 100 * where sectors are 256 bytes. 101 * 102 * New Format: 103 * sector 0: LIF volume header (40 bytes) 104 * sector 1: <unused> 105 * sector 2: LIF directory (8 x 32 == 256 bytes) 106 * sector 3: <unused> 107 * sector 4-31: disklabel (~300 bytes right now) 108 * sector 32-: LIF file 0, LIF file 1, etc. 109 */ 110 int 111 main(int argc, char **argv) 112 { 113 char *n1, *n2, *n3; 114 int n, to, ch; 115 int count; 116 117 118 while ((ch = getopt(argc, argv, "l:t:")) != -1) 119 switch (ch) { 120 case 'l': 121 loadpoint = strtol(optarg, NULL, 0); 122 break; 123 case 't': 124 repro_epoch = (time_t)atoll(optarg); 125 break; 126 default: 127 usage(); 128 } 129 130 argc -= optind; 131 argv += optind; 132 if (loadpoint == -1 || argc == 0) 133 usage(); 134 n1 = argv[0]; 135 argv++; 136 argc--; 137 if (argc == 0) 138 usage(); 139 if (argc > 1) { 140 n2 = argv[0]; 141 argv++; 142 argc--; 143 if (argc > 1) { 144 n3 = argv[0]; 145 argv++; 146 argc--; 147 } else 148 n3 = NULL; 149 } else 150 n2 = n3 = NULL; 151 152 if ((to = open(argv[0], O_WRONLY | O_TRUNC | O_CREAT, 0644)) == -1) 153 err(1, "Can't open `%s'", argv[0]); 154 /* clear possibly unused directory entries */ 155 strncpy(lifd[1].dir_name, " ", 10); 156 lifd[1].dir_type = htobe16(-1); 157 lifd[1].dir_addr = htobe32(0); 158 lifd[1].dir_length = htobe32(0); 159 lifd[1].dir_flag = htobe16(0xFF); 160 lifd[1].dir_exec = htobe32(0); 161 lifd[7] = lifd[6] = lifd[5] = lifd[4] = lifd[3] = lifd[2] = lifd[1]; 162 /* record volume info */ 163 lifv.vol_id = htobe16(VOL_ID); 164 strncpy(lifv.vol_label, "BOOT43", 6); 165 lifv.vol_addr = htobe32(btolifs(LIF_DIRSTART)); 166 lifv.vol_oct = htobe16(VOL_OCT); 167 lifv.vol_dirsize = htobe32(btolifs(LIF_DIRSIZE)); 168 lifv.vol_version = htobe16(1); 169 /* output bootfile one */ 170 lseek(to, LIF_FILESTART, SEEK_SET); 171 count = putfile(n1, to); 172 n = btolifs(count); 173 strcpy(lifd[0].dir_name, lifname(n1)); 174 lifd[0].dir_type = htobe16(DIR_TYPE); 175 lifd[0].dir_addr = htobe32(btolifs(LIF_FILESTART)); 176 lifd[0].dir_length = htobe32(n); 177 bcddate(n1, lifd[0].dir_toc); 178 lifd[0].dir_flag = htobe16(DIR_FLAG); 179 lifd[0].dir_exec = htobe32(loadpoint); 180 lifv.vol_length = htobe32(be32toh(lifd[0].dir_addr) + 181 be32toh(lifd[0].dir_length)); 182 /* if there is an optional second boot program, output it */ 183 if (n2) { 184 lseek(to, LIF_FILESTART+lifstob(n), SEEK_SET); 185 count = putfile(n2, to); 186 n = btolifs(count); 187 strcpy(lifd[1].dir_name, lifname(n2)); 188 lifd[1].dir_type = htobe16(DIR_TYPE); 189 lifd[1].dir_addr = htobe32(lifv.vol_length); 190 lifd[1].dir_length = htobe32(n); 191 bcddate(n2, lifd[1].dir_toc); 192 lifd[1].dir_flag = htobe16(DIR_FLAG); 193 lifd[1].dir_exec = htobe32(loadpoint); 194 lifv.vol_length = htobe32(be32toh(lifd[1].dir_addr) + 195 be32toh(lifd[1].dir_length)); 196 } 197 /* ditto for three */ 198 if (n3) { 199 lseek(to, LIF_FILESTART+lifstob(lifd[0].dir_length+n), 200 SEEK_SET); 201 count = putfile(n3, to); 202 n = btolifs(count); 203 strcpy(lifd[2].dir_name, lifname(n3)); 204 lifd[2].dir_type = htobe16(DIR_TYPE); 205 lifd[2].dir_addr = htobe32(lifv.vol_length); 206 lifd[2].dir_length = htobe32(n); 207 bcddate(n3, lifd[2].dir_toc); 208 lifd[2].dir_flag = htobe16(DIR_FLAG); 209 lifd[2].dir_exec = htobe32(loadpoint); 210 lifv.vol_length = htobe32(be32toh(lifd[2].dir_addr) + 211 be32toh(lifd[2].dir_length)); 212 } 213 /* output volume/directory header info */ 214 lseek(to, LIF_VOLSTART, SEEK_SET); 215 write(to, &lifv, LIF_VOLSIZE); 216 lseek(to, LIF_DIRSTART, SEEK_SET); 217 write(to, lifd, LIF_DIRSIZE); 218 return EXIT_SUCCESS; 219 } 220 221 int 222 putfile(char *from, int to) 223 { 224 int fd; 225 struct stat statb; 226 ssize_t nr; 227 void *bp; 228 229 if ((fd = open(from, 0)) < 0) 230 err(EXIT_FAILURE, "Unable to open file `%s'", from); 231 fstat(fd, &statb); 232 ld.address = htobe32(loadpoint); 233 ld.count = htobe32(statb.st_size); 234 if ((bp = malloc(statb.st_size)) == NULL) 235 err(EXIT_FAILURE, "Can't allocate buffer"); 236 if (read(fd, bp, statb.st_size) < 0) 237 err(EXIT_FAILURE, "Error reading from file `%s'", from); 238 (void)close(fd); 239 write(to, &ld, sizeof(ld)); 240 write(to, bp, statb.st_size); 241 free(bp); 242 return (statb.st_size + sizeof(ld)); 243 } 244 245 void 246 usage(void) 247 { 248 249 fprintf(stderr, "Usage: %s -l <loadpoint> [-t <timestamp>] prog1 " 250 "[ prog2 ] outfile\n", getprogname()); 251 exit(EXIT_FAILURE); 252 } 253 254 char * 255 lifname(char *str) 256 { 257 static char lname[10] = "SYS_XXXXX"; 258 char *cp; 259 int i; 260 261 if ((cp = strrchr(str, '/')) != NULL) 262 str = ++cp; 263 for (i = 4; i < 9; i++) { 264 if (islower(*str)) 265 lname[i] = toupper(*str); 266 else if (isalnum(*str) || *str == '_') 267 lname[i] = *str; 268 else 269 break; 270 str++; 271 } 272 for ( ; i < 10; i++) 273 lname[i] = '\0'; 274 return(lname); 275 } 276 277 void 278 bcddate(char *name, char *toc) 279 { 280 struct stat statb; 281 struct tm *tm; 282 283 stat(name, &statb); 284 tm = localtime(&statb.st_ctime); 285 *toc = ((tm->tm_mon+1) / 10) << 4; 286 *toc++ |= (tm->tm_mon+1) % 10; 287 *toc = (tm->tm_mday / 10) << 4; 288 *toc++ |= tm->tm_mday % 10; 289 *toc = (tm->tm_year / 10) << 4; 290 *toc++ |= tm->tm_year % 10; 291 *toc = (tm->tm_hour / 10) << 4; 292 *toc++ |= tm->tm_hour % 10; 293 *toc = (tm->tm_min / 10) << 4; 294 *toc++ |= tm->tm_min % 10; 295 *toc = (tm->tm_sec / 10) << 4; 296 *toc |= tm->tm_sec % 10; 297 } 298
Indexes created Sat Sep 27 14:09:57 GMT 2025