1/* $NetBSD: strfile.c,v 1.44 2022/08/07 11:06:18 andvar Exp $ */ 2 3/*- 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ken Arnold. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35#if HAVE_NBTOOL_CONFIG_H 36#include "nbtool_config.h" 37#endif 38 39#ifdef __NetBSD__ 40#include <sys/cdefs.h> 41#ifndef lint 42__COPYRIGHT("@(#) Copyright (c) 1989, 1993\ 43 The Regents of the University of California. All rights reserved."); 44#endif /* not lint */ 45 46#ifndef lint 47#if 0 48static char sccsid[] = "@(#)strfile.c 8.1 (Berkeley) 5/31/93"; 49#else 50__RCSID("$NetBSD: strfile.c,v 1.44 2022/08/07 11:06:18 andvar Exp $"); 51#endif 52#endif /* not lint */ 53#endif /* __NetBSD__ */ 54 55#include <sys/types.h> 56#include <sys/param.h> 57#include <ctype.h> 58#include <stdarg.h> 59#include <stdio.h> 60#include <stdlib.h> 61#include <string.h> 62#include <time.h> 63#include <unistd.h> 64#include <inttypes.h> 65#include <err.h> 66 67#include "strfile.h" 68 69#ifndef MAXPATHLEN 70#define MAXPATHLEN 1024 71#endif /* MAXPATHLEN */ 72 73/* 74 * This program takes a file composed of strings separated by 75 * lines starting with two consecutive delimiting character (default 76 * character is '%') and creates another file which consists of a table 77 * describing the file (structure from "strfile.h"), a table of seek 78 * pointers to the start of the strings, and the strings, each terminated 79 * by a null byte. Usage: 80 * 81 * % strfile [-iorsx] [ -cC ] sourcefile [ datafile ] 82 * 83 * c - Change delimiting character from '%' to 'C' 84 * s - Silent. Give no summary of data processed at the end of 85 * the run. 86 * o - order the strings in alphabetic order 87 * i - if ordering, ignore case 88 * r - randomize the order of the strings 89 * x - set rotated bit 90 * 91 * Ken Arnold Sept. 7, 1978 -- 92 * 93 * Added ordering options. 94 */ 95 96# define STORING_PTRS (Oflag || Rflag) 97# define CHUNKSIZE 512 98 99# define ALLOC(ptr,sz) do { \ 100 if (ptr == NULL) \ 101 ptr = malloc(CHUNKSIZE * sizeof *ptr); \ 102 else if (((sz) + 1) % CHUNKSIZE == 0) \ 103 ptr = realloc(ptr, ((sz) + CHUNKSIZE) * sizeof *ptr); \ 104 if (ptr == NULL) \ 105 err(1, "out of space"); \ 106 } while (0) 107 108typedef struct { 109 char first; 110 off_t pos; 111} STR; 112 113static char *Infile = NULL; /* input file name */ 114static char Outfile[MAXPATHLEN] = ""; /* output file name */ 115static char Delimch = '%'; /* delimiting character */ 116 117static int Sflag = 0; /* silent run flag */ 118static int Oflag = 0; /* ordering flag */ 119static int Iflag = 0; /* ignore case flag */ 120static int Rflag = 0; /* randomize order flag */ 121static int Xflag = 0; /* set rotated bit */ 122static long Num_pts = 0; /* number of pointers/strings */ 123 124static off_t *Seekpts; 125 126static FILE *Sort_1, *Sort_2; /* pointers for sorting */ 127 128static STRFILE Tbl; /* statistics table */ 129 130static STR *Firstch; /* first chars of each string */ 131 132 133static uint32_t h2nl(uint32_t h); 134static void getargs(int argc, char **argv); 135static void usage(const char *, ...) __dead __printflike(1, 2); 136static void add_offset(FILE *fp, off_t off); 137static void do_order(void); 138static int cmp_str(const void *vp1, const void *vp2); 139static void randomize(void); 140static void fwrite_be_offt(off_t off, FILE *f); 141 142 143/* 144 * main: 145 * Drive the sucker. There are two main modes -- either we store 146 * the seek pointers, if the table is to be sorted or randomized, 147 * or we write the pointer directly to the file, if we are to stay 148 * in file order. If the former, we allocate and re-allocate in 149 * CHUNKSIZE blocks; if the latter, we just write each pointer, 150 * and then seek back to the beginning to write in the table. 151 */ 152int 153main(int ac, char **av) 154{ 155 char *sp, dc; 156 FILE *inf, *outf; 157 off_t last_off, length, pos; 158 int first; 159 char *nsp; 160 STR *fp; 161 static char string[257]; 162 long i; 163 164 /* sanity test */ 165 if (sizeof(uint32_t) != 4) 166 errx(1, "sizeof(uint32_t) != 4"); 167 168 getargs(ac, av); /* evalute arguments */ 169 dc = Delimch; 170 if ((inf = fopen(Infile, "r")) == NULL) 171 err(1, "open `%s'", Infile); 172 173 if ((outf = fopen(Outfile, "w")) == NULL) 174 err(1, "open `%s'", Outfile); 175 if (!STORING_PTRS) 176 (void) fseek(outf, sizeof Tbl, SEEK_SET); 177 178 /* 179 * Write the strings onto the file 180 */ 181 182 Tbl.str_longlen = 0; 183 Tbl.str_shortlen = (unsigned int) 0x7fffffff; 184 Tbl.str_delim = dc; 185 Tbl.str_version = VERSION; 186 first = Oflag; 187 add_offset(outf, ftell(inf)); 188 last_off = 0; 189 do { 190 sp = fgets(string, 256, inf); 191 if (sp == NULL || (sp[0] == dc && sp[1] == '\n')) { 192 pos = ftell(inf); 193 length = pos - last_off - (sp ? strlen(sp) : 0); 194 last_off = pos; 195 if (!length) 196 continue; 197 add_offset(outf, pos); 198 if ((off_t)Tbl.str_longlen < length) 199 Tbl.str_longlen = length; 200 if ((off_t)Tbl.str_shortlen > length) 201 Tbl.str_shortlen = length; 202 first = Oflag; 203 } 204 else if (first) { 205 for (nsp = sp; !isalnum((unsigned char)*nsp); nsp++) 206 continue; 207 ALLOC(Firstch, Num_pts); 208 fp = &Firstch[Num_pts - 1]; 209 if (Iflag && isupper((unsigned char)*nsp)) 210 fp->first = tolower((unsigned char)*nsp); 211 else 212 fp->first = *nsp; 213 fp->pos = Seekpts[Num_pts - 1]; 214 first = 0; 215 } 216 } while (sp != NULL); 217 218 /* 219 * write the tables in 220 */ 221 222 (void) fclose(inf); 223 224 if (Oflag) 225 do_order(); 226 else if (Rflag) 227 randomize(); 228 229 if (Xflag) 230 Tbl.str_flags |= STR_ROTATED; 231 232 if (!Sflag) { 233 printf("\"%s\" created\n", Outfile); 234 if (Num_pts == 2) 235 puts("There was 1 string"); 236 else 237 printf("There were %d strings\n", (int)(Num_pts - 1)); 238 printf("Longest string: %lu byte%s\n", (unsigned long)Tbl.str_longlen, 239 Tbl.str_longlen == 1 ? "" : "s"); 240 printf("Shortest string: %lu byte%s\n", (unsigned long)Tbl.str_shortlen, 241 Tbl.str_shortlen == 1 ? "" : "s"); 242 } 243 244 (void) fseek(outf, (off_t) 0, SEEK_SET); 245 Tbl.str_version = h2nl(Tbl.str_version); 246 Tbl.str_numstr = h2nl(Num_pts - 1); 247 Tbl.str_longlen = h2nl(Tbl.str_longlen); 248 Tbl.str_shortlen = h2nl(Tbl.str_shortlen); 249 Tbl.str_flags = h2nl(Tbl.str_flags); 250 (void) fwrite((char *) &Tbl, sizeof Tbl, 1, outf); 251 if (STORING_PTRS) { 252 for (i = 0; i < Num_pts; i++) 253 fwrite_be_offt(Seekpts[i], outf); 254 } 255 fflush(outf); 256 if (ferror(outf)) 257 err(1, "fwrite %s", Outfile); 258 (void) fclose(outf); 259 exit(0); 260} 261 262/* 263 * This routine evaluates arguments from the command line 264 */ 265static void 266getargs(int argc, char **argv) 267{ 268 int ch; 269 extern int optind; 270 extern char *optarg; 271 size_t len; 272 273 while ((ch = getopt(argc, argv, "c:iorsx")) != -1) 274 switch(ch) { 275 case 'c': /* new delimiting char */ 276 Delimch = *optarg; 277 if (!isascii(Delimch)) { 278 printf("bad delimiting character: '\\%o\n'", 279 Delimch); 280 } 281 break; 282 case 'i': /* ignore case in ordering */ 283 Iflag++; 284 break; 285 case 'o': /* order strings */ 286 Oflag++; 287 break; 288 case 'r': /* randomize pointers */ 289 Rflag++; 290 break; 291 case 's': /* silent */ 292 Sflag++; 293 break; 294 case 'x': /* set the rotated bit */ 295 Xflag++; 296 break; 297 case '?': 298 default: 299 usage(NULL); 300 } 301 argv += optind; 302 303 if (*argv) { 304 Infile = *argv; 305 if (*++argv) { 306 len = strlcpy(Outfile, *argv, sizeof(Outfile)); 307 if (len >= sizeof(Outfile)) { 308 usage("Too long output filename"); 309 } 310 } 311 } 312 if (!Infile) { 313 usage("No input file name"); 314 } 315 if (*Outfile == '\0') { 316 len = snprintf(Outfile, sizeof(Outfile), "%s.dat", Infile); 317 if (len >= sizeof(Outfile)) { 318 usage("Too long input filename"); 319 } 320 } 321} 322 323static void 324usage(const char *fmt, ...) 325{ 326 if (fmt) { 327 va_list ap; 328 va_start(ap, fmt); 329 vwarnx(fmt, ap); 330 va_end(ap); 331 } 332 (void) fprintf(stderr, 333 "Usage: %s [-iorsx] [-c char] sourcefile [datafile]\n", 334 getprogname()); 335 exit(1); 336} 337 338/* 339 * add_offset: 340 * Add an offset to the list, or write it out, as appropriate. 341 */ 342static void 343add_offset(FILE *fp, off_t off) 344{ 345 346 if (!STORING_PTRS) { 347 fwrite_be_offt(off, fp); 348 } else { 349 ALLOC(Seekpts, Num_pts + 1); 350 Seekpts[Num_pts] = off; 351 } 352 Num_pts++; 353} 354 355/* 356 * do_order: 357 * Order the strings alphabetically (possibly ignoring case). 358 */ 359static void 360do_order(void) 361{ 362 int i; 363 off_t *lp; 364 STR *fp; 365 366 Sort_1 = fopen(Infile, "r"); 367 Sort_2 = fopen(Infile, "r"); 368 qsort((char *) Firstch, (int) Tbl.str_numstr, sizeof *Firstch, cmp_str); 369 i = Tbl.str_numstr; 370 lp = Seekpts; 371 fp = Firstch; 372 while (i--) 373 *lp++ = fp++->pos; 374 (void) fclose(Sort_1); 375 (void) fclose(Sort_2); 376 Tbl.str_flags |= STR_ORDERED; 377} 378 379static int 380cmp_str(const void *vp1, const void *vp2) 381{ 382 const STR *p1, *p2; 383 int c1, c2; 384 int n1, n2; 385 386 p1 = (const STR *)vp1; 387 p2 = (const STR *)vp2; 388 389# define SET_N(nf,ch) (nf = (ch == '\n')) 390# define IS_END(ch,nf) (ch == Delimch && nf) 391 392 c1 = p1->first; 393 c2 = p2->first; 394 if (c1 != c2) 395 return c1 - c2; 396 397 (void) fseek(Sort_1, p1->pos, SEEK_SET); 398 (void) fseek(Sort_2, p2->pos, SEEK_SET); 399 400 n1 = 0; 401 n2 = 0; 402 while (!isalnum(c1 = getc(Sort_1)) && c1 != '\0') 403 SET_N(n1, c1); 404 while (!isalnum(c2 = getc(Sort_2)) && c2 != '\0') 405 SET_N(n2, c2); 406 407 while (!IS_END(c1, n1) && !IS_END(c2, n2)) { 408 if (Iflag) { 409 if (isupper(c1)) 410 c1 = tolower(c1); 411 if (isupper(c2)) 412 c2 = tolower(c2); 413 } 414 if (c1 != c2) 415 return c1 - c2; 416 SET_N(n1, c1); 417 SET_N(n2, c2); 418 c1 = getc(Sort_1); 419 c2 = getc(Sort_2); 420 } 421 if (IS_END(c1, n1)) 422 c1 = 0; 423 if (IS_END(c2, n2)) 424 c2 = 0; 425 return c1 - c2; 426} 427 428/* 429 * randomize: 430 * Randomize the order of the string table. We must be careful 431 * not to randomize across delimiter boundaries. All 432 * randomization is done within each block. 433 */ 434static void 435randomize(void) 436{ 437 int cnt, i; 438 off_t tmp; 439 off_t *sp; 440 441 srandom((int)(time(NULL) + getpid())); 442 443 Tbl.str_flags |= STR_RANDOM; 444 cnt = Tbl.str_numstr; 445 446 /* 447 * move things around randomly 448 */ 449 450 for (sp = Seekpts; cnt > 0; cnt--, sp++) { 451 i = random() % cnt; 452 tmp = sp[0]; 453 sp[0] = sp[i]; 454 sp[i] = tmp; 455 } 456} 457 458/* 459 * fwrite_be_offt: 460 * Write out the off parameter as a 64 bit big endian number 461 */ 462 463static void 464fwrite_be_offt(off_t off, FILE *f) 465{ 466 int i; 467 unsigned char c[8]; 468 469 for (i = 7; i >= 0; i--) { 470 c[i] = off & 0xff; 471 off >>= 8; 472 } 473 fwrite(c, sizeof(c), 1, f); 474} 475 476static uint32_t 477h2nl(uint32_t h) 478{ 479 unsigned char c[4]; 480 uint32_t rv; 481 482 c[0] = (h >> 24) & 0xff; 483 c[1] = (h >> 16) & 0xff; 484 c[2] = (h >> 8) & 0xff; 485 c[3] = (h >> 0) & 0xff; 486 memcpy(&rv, c, sizeof rv); 487 488 return (rv); 489} 490