| 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. All advertising materials mentioning features or use of this software |
| 17 | * must display the following acknowledgement: |
| 18 | * This product includes software developed by the University of |
| 19 | * California, Berkeley and its contributors. |
| 20 | * 4. Neither the name of the University nor the names of its contributors |
| 21 | * may be used to endorse or promote products derived from this software |
| 22 | * without specific prior written permission. |
| 23 | * |
| 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 34 | * SUCH DAMAGE. |
| 35 | * |
| 36 | * $FreeBSD: src/games/fortune/unstr/unstr.c,v 1.5 1999/11/16 02:57:01 billf Exp $ |
| 37 | * $DragonFly: src/games/fortune/unstr/unstr.c,v 1.2 2003/06/17 04:25:24 dillon Exp $ |
| 38 | * |
| 39 | * @(#) Copyright (c) 1991, 1993 The Regents of the University of California. All rights reserved. |
| 40 | * @(#)unstr.c 8.1 (Berkeley) 5/31/93 |
| 41 | * $FreeBSD: src/games/fortune/unstr/unstr.c,v 1.5 1999/11/16 02:57:01 billf Exp $ |
| 42 | */ |
| 43 | |
| 44 | /* |
| 45 | * This program un-does what "strfile" makes, thereby obtaining the |
| 46 | * original file again. This can be invoked with the name of the output |
| 47 | * file, the input file, or both. If invoked with only a single argument |
| 48 | * ending in ".dat", it is pressumed to be the input file and the output |
| 49 | * file will be the same stripped of the ".dat". If the single argument |
| 50 | * doesn't end in ".dat", then it is presumed to be the output file, and |
| 51 | * the input file is that name prepended by a ".dat". If both are given |
| 52 | * they are treated literally as the input and output files. |
| 53 | * |
| 54 | * Ken Arnold Aug 13, 1978 |
| 55 | */ |
| 56 | |
| 57 | # include <sys/param.h> |
| 58 | # include <stdio.h> |
| 59 | # include <ctype.h> |
| 60 | # include <string.h> |
| 61 | # include "strfile.h" |
| 62 | |
| 63 | char *Infile, /* name of input file */ |
| 64 | Datafile[MAXPATHLEN], /* name of data file */ |
| 65 | Delimch; /* delimiter character */ |
| 66 | |
| 67 | FILE *Inf, *Dataf; |
| 68 | |
| 69 | void getargs(), order_unstr(); |
| 70 | |
| 71 | /* ARGSUSED */ |
| 72 | int main(ac, av) |
| 73 | int ac; |
| 74 | char **av; |
| 75 | { |
| 76 | static STRFILE tbl; /* description table */ |
| 77 | |
| 78 | getargs(av); |
| 79 | if ((Inf = fopen(Infile, "r")) == NULL) { |
| 80 | perror(Infile); |
| 81 | exit(1); |
| 82 | } |
| 83 | if ((Dataf = fopen(Datafile, "r")) == NULL) { |
| 84 | perror(Datafile); |
| 85 | exit(1); |
| 86 | } |
| 87 | (void) fread((char *) &tbl, sizeof tbl, 1, Dataf); |
| 88 | tbl.str_version = ntohl(tbl.str_version); |
| 89 | tbl.str_numstr = ntohl(tbl.str_numstr); |
| 90 | tbl.str_longlen = ntohl(tbl.str_longlen); |
| 91 | tbl.str_shortlen = ntohl(tbl.str_shortlen); |
| 92 | tbl.str_flags = ntohl(tbl.str_flags); |
| 93 | if (!(tbl.str_flags & (STR_ORDERED | STR_RANDOM))) { |
| 94 | fprintf(stderr, "nothing to do -- table in file order\n"); |
| 95 | exit(1); |
| 96 | } |
| 97 | Delimch = tbl.str_delim; |
| 98 | order_unstr(&tbl); |
| 99 | (void) fclose(Inf); |
| 100 | (void) fclose(Dataf); |
| 101 | exit(0); |
| 102 | } |
| 103 | |
| 104 | void getargs(av) |
| 105 | char *av[]; |
| 106 | { |
| 107 | if (!*++av) { |
| 108 | (void) fprintf(stderr, "usage: unstr datafile\n"); |
| 109 | exit(1); |
| 110 | } |
| 111 | Infile = *av; |
| 112 | (void) strcpy(Datafile, Infile); |
| 113 | (void) strcat(Datafile, ".dat"); |
| 114 | } |
| 115 | |
| 116 | void order_unstr(tbl) |
| 117 | STRFILE *tbl; |
| 118 | { |
| 119 | int i; |
| 120 | char *sp; |
| 121 | long pos; |
| 122 | char buf[BUFSIZ]; |
| 123 | |
| 124 | for (i = 0; i < tbl->str_numstr; i++) { |
| 125 | (void) fread((char *) &pos, 1, sizeof pos, Dataf); |
| 126 | (void) fseek(Inf, ntohl(pos), 0); |
| 127 | if (i != 0) |
| 128 | (void) printf("%c\n", Delimch); |
| 129 | for (;;) { |
| 130 | sp = fgets(buf, sizeof buf, Inf); |
| 131 | if (sp == NULL || STR_ENDSTRING(sp, *tbl)) |
| 132 | break; |
| 133 | else |
| 134 | fputs(sp, stdout); |
| 135 | } |
| 136 | } |
| 137 | } |