1/*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Ken Arnold. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#if 0 34#ifndef lint 35static const char copyright[] = 36"@(#) Copyright (c) 1991, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38#endif /* not lint */ 39 40#ifndef lint 41static const char sccsid[] = "@(#)unstr.c 8.1 (Berkeley) 5/31/93"; 42#endif /* not lint */ 43#endif 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD$"); 46 47/* 48 * This program un-does what "strfile" makes, thereby obtaining the 49 * original file again. This can be invoked with the name of the output 50 * file, the input file, or both. If invoked with only a single argument 51 * ending in ".dat", it is pressumed to be the input file and the output 52 * file will be the same stripped of the ".dat". If the single argument 53 * doesn't end in ".dat", then it is presumed to be the output file, and 54 * the input file is that name prepended by a ".dat". If both are given 55 * they are treated literally as the input and output files. 56 * 57 * Ken Arnold Aug 13, 1978 58 */ 59 60#include <sys/param.h> 61#include <sys/endian.h> 62#include <ctype.h> 63#include <err.h> 64#include <stdio.h> 65#include <stdlib.h> 66#include <string.h> 67 68#include "strfile.h" 69 70static char *Infile, /* name of input file */ 71 Datafile[MAXPATHLEN], /* name of data file */ 72 Delimch; /* delimiter character */ 73 74static FILE *Inf, *Dataf; 75 76static void order_unstr(STRFILE *); 77 78/* ARGSUSED */ 79int 80main(int argc, char *argv[]) 81{ 82 static STRFILE tbl; /* description table */ 83 84 if (argc != 2) { 85 fprintf(stderr, "usage: unstr datafile\n"); 86 exit(1); 87 } 88 Infile = argv[1]; 89 strcpy(Datafile, Infile); 90 strcat(Datafile, ".dat"); 91 if ((Inf = fopen(Infile, "r")) == NULL) 92 err(1, "%s", Infile); 93 if ((Dataf = fopen(Datafile, "r")) == NULL) 94 err(1, "%s", Datafile); 95 fread((char *)&tbl, sizeof(tbl), 1, Dataf); 96 tbl.str_version = be32toh(tbl.str_version); 97 tbl.str_numstr = be32toh(tbl.str_numstr); 98 tbl.str_longlen = be32toh(tbl.str_longlen); 99 tbl.str_shortlen = be32toh(tbl.str_shortlen); 100 tbl.str_flags = be32toh(tbl.str_flags); 101 if (!(tbl.str_flags & (STR_ORDERED | STR_RANDOM))) 102 errx(1, "nothing to do -- table in file order"); 103 Delimch = tbl.str_delim; 104 order_unstr(&tbl); 105 fclose(Inf); 106 fclose(Dataf); 107 exit(0); 108} 109 110static void 111order_unstr(STRFILE *tbl) 112{ 113 uint32_t i; 114 char *sp; 115 off_t pos; 116 char buf[BUFSIZ]; 117 118 for (i = 0; i < tbl->str_numstr; i++) { 119 fread(&pos, 1, sizeof(pos), Dataf); 120 fseeko(Inf, be64toh(pos), SEEK_SET); 121 if (i != 0) 122 printf("%c\n", Delimch); 123 for (;;) { 124 sp = fgets(buf, sizeof(buf), Inf); 125 if (sp == NULL || STR_ENDSTRING(sp, *tbl)) 126 break; 127 else 128 fputs(sp, stdout); 129 } 130 } 131} 132