mkboot.c revision 1.2
1 /* $NetBSD: mkboot.c,v 1.2 2001/01/02 04:14:34 simonb 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)mkboot.c 8.1 (Berkeley) 7/15/93 36 */ 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 1.2 2001/01/02 04:14:34 simonb Exp $"); 51 #endif /* not lint */ 52 53 #include <sys/param.h> 54 #include <sys/file.h> 55 #include <sys/stat.h> 56 57 #include <ctype.h> 58 #include <stdio.h> 59 #include <stdlib.h> 60 #include <string.h> 61 #include <unistd.h> 62 63 #include "volhdr.h" 64 #include "loadfile.h" 65 66 #define LIF_NUMDIR 8 67 68 #define LIF_VOLSTART 0 69 #define LIF_VOLSIZE sizeof(struct lifvol) 70 #define LIF_DIRSTART 512 71 #define LIF_DIRSIZE (LIF_NUMDIR * sizeof(struct lifdir)) 72 #define LIF_FILESTART 8192 73 74 #define btolifs(b) (((b) + (SECTSIZE - 1)) / SECTSIZE) 75 #define lifstob(s) ((s) * SECTSIZE) 76 77 int lpflag; 78 int loadpoint; 79 int entrypoint; 80 struct load ld; 81 struct lifvol lifv; 82 struct lifdir lifd[LIF_NUMDIR]; 83 char buf[10240]; 84 85 int main(int, char **); 86 void bcddate(char *, char *); 87 char *lifname(char *); 88 void 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; 112 113 --argc; 114 ++argv; 115 if (argc == 0) 116 usage(); 117 if (!strcmp(argv[0], "-l")) { 118 argv++; 119 argc--; 120 if (argc == 0) 121 usage(); 122 sscanf(argv[0], "0x%x", &loadpoint); 123 lpflag++; 124 argv++; 125 argc--; 126 } 127 if (argc == 0) 128 usage(); 129 n1 = argv[0]; 130 argv++; 131 argc--; 132 if (argc == 0) 133 usage(); 134 if (argc > 1) { 135 n2 = argv[0]; 136 argv++; 137 argc--; 138 if (argc > 1) { 139 n3 = argv[0]; 140 argv++; 141 argc--; 142 } else 143 n3 = NULL; 144 } else 145 n2 = n3 = NULL; 146 to = open(argv[0], O_WRONLY | O_TRUNC | O_CREAT, 0644); 147 if (to < 0) { 148 perror("open"); 149 exit(1); 150 } 151 /* clear possibly unused directory entries */ 152 strncpy(lifd[1].dir_name, " ", 10); 153 lifd[1].dir_type = -1; 154 lifd[1].dir_addr = 0; 155 lifd[1].dir_length = 0; 156 lifd[1].dir_flag = 0xFF; 157 lifd[1].dir_exec = 0; 158 lifd[7] = lifd[6] = lifd[5] = lifd[4] = lifd[3] = lifd[2] = lifd[1]; 159 /* record volume info */ 160 lifv.vol_id = VOL_ID; 161 strncpy(lifv.vol_label, "BOOT43", 6); 162 lifv.vol_addr = btolifs(LIF_DIRSTART); 163 lifv.vol_oct = VOL_OCT; 164 lifv.vol_dirsize = btolifs(LIF_DIRSIZE); 165 lifv.vol_version = 1; 166 /* output bootfile one */ 167 lseek(to, LIF_FILESTART, SEEK_SET); 168 putfile(n1, to); 169 n = btolifs(ld.count + sizeof(ld)); 170 strcpy(lifd[0].dir_name, lifname(n1)); 171 lifd[0].dir_type = DIR_TYPE; 172 lifd[0].dir_addr = btolifs(LIF_FILESTART); 173 lifd[0].dir_length = n; 174 bcddate(n1, lifd[0].dir_toc); 175 lifd[0].dir_flag = DIR_FLAG; 176 lifd[0].dir_exec = lpflag? loadpoint + entrypoint : entrypoint; 177 lifv.vol_length = lifd[0].dir_addr + lifd[0].dir_length; 178 /* if there is an optional second boot program, output it */ 179 if (n2) { 180 lseek(to, LIF_FILESTART+lifstob(n), SEEK_SET); 181 putfile(n2, to); 182 n = btolifs(ld.count + sizeof(ld)); 183 strcpy(lifd[1].dir_name, lifname(n2)); 184 lifd[1].dir_type = DIR_TYPE; 185 lifd[1].dir_addr = lifv.vol_length; 186 lifd[1].dir_length = n; 187 bcddate(n2, lifd[1].dir_toc); 188 lifd[1].dir_flag = DIR_FLAG; 189 lifd[1].dir_exec = lpflag? loadpoint + entrypoint : entrypoint; 190 lifv.vol_length = lifd[1].dir_addr + lifd[1].dir_length; 191 } 192 /* ditto for three */ 193 if (n3) { 194 lseek(to, LIF_FILESTART+lifstob(lifd[0].dir_length+n), SEEK_SET); 195 putfile(n3, to); 196 n = btolifs(ld.count + sizeof(ld)); 197 strcpy(lifd[2].dir_name, lifname(n3)); 198 lifd[2].dir_type = DIR_TYPE; 199 lifd[2].dir_addr = lifv.vol_length; 200 lifd[2].dir_length = n; 201 bcddate(n3, lifd[2].dir_toc); 202 lifd[2].dir_flag = DIR_FLAG; 203 lifd[2].dir_exec = lpflag? loadpoint + entrypoint : entrypoint; 204 lifv.vol_length = lifd[2].dir_addr + lifd[2].dir_length; 205 } 206 /* output volume/directory header info */ 207 lseek(to, LIF_VOLSTART, SEEK_SET); 208 write(to, &lifv, LIF_VOLSIZE); 209 lseek(to, LIF_DIRSTART, SEEK_SET); 210 write(to, lifd, LIF_DIRSIZE); 211 exit(0); 212 } 213 214 void 215 putfile(from, to) 216 char *from; 217 int to; 218 { 219 int fd; 220 u_long bp; 221 u_long marks[MARK_MAX]; 222 223 marks[MARK_START] = 0; 224 if ((fd = loadfile(from, marks, COUNT_TEXT|COUNT_DATA)) == -1) 225 exit(1); 226 (void)close(fd); 227 228 entrypoint = marks[MARK_ENTRY]; 229 ld.address = lpflag ? loadpoint : entrypoint; 230 ld.count = marks[MARK_END] - marks[MARK_START]; 231 bp = (u_long)malloc(ld.count); 232 marks[MARK_START] = bp - marks[MARK_START]; 233 234 if ((fd = loadfile(from, marks, LOAD_TEXT|LOAD_DATA)) == -1) 235 exit(1); 236 (void)close(fd); 237 238 write(to, &ld, sizeof(ld)); 239 write(to, (void *)bp, ld.count); 240 } 241 242 void 243 usage(void) 244 { 245 246 fprintf(stderr, 247 "usage: mkboot [-l loadpoint] prog1 [ prog2 ] outfile\n"); 248 exit(1); 249 } 250 251 char * 252 lifname(char *str) 253 { 254 static char lname[10] = "SYS_XXXXX"; 255 char *cp; 256 int i; 257 258 if ((cp = strrchr(str, '/')) != NULL) 259 str = ++cp; 260 for (i = 4; i < 9; i++) { 261 if (islower(*str)) 262 lname[i] = toupper(*str); 263 else if (isalnum(*str) || *str == '_') 264 lname[i] = *str; 265 else 266 break; 267 str++; 268 } 269 for ( ; i < 10; i++) 270 lname[i] = '\0'; 271 return(lname); 272 } 273 274 void 275 bcddate(char *name, char *toc) 276 { 277 struct stat statb; 278 struct tm *tm; 279 280 stat(name, &statb); 281 tm = localtime(&statb.st_ctime); 282 *toc = ((tm->tm_mon+1) / 10) << 4; 283 *toc++ |= (tm->tm_mon+1) % 10; 284 *toc = (tm->tm_mday / 10) << 4; 285 *toc++ |= tm->tm_mday % 10; 286 *toc = (tm->tm_year / 10) << 4; 287 *toc++ |= tm->tm_year % 10; 288 *toc = (tm->tm_hour / 10) << 4; 289 *toc++ |= tm->tm_hour % 10; 290 *toc = (tm->tm_min / 10) << 4; 291 *toc++ |= tm->tm_min % 10; 292 *toc = (tm->tm_sec / 10) << 4; 293 *toc |= tm->tm_sec % 10; 294 } 295
Indexes created Sun Sep 28 12:09:53 GMT 2025