1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/* $OpenBSD: unstr.c,v 1.9 2004/07/09 15:59:26 deraadt Exp $ */
/* $NetBSD: unstr.c,v 1.3 1995/03/23 08:29:00 cgd Exp $ */
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ken Arnold.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1991, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)unstr.c 8.1 (Berkeley) 5/31/93";
#endif /* not lint */
/*
* This program un-does what "strfile" makes, thereby obtaining the
* original file again. This can be invoked with the name of the output
* file, the input file, or both. If invoked with only a single argument
* ending in ".dat", it is pressumed to be the input file and the output
* file will be the same stripped of the ".dat". If the single argument
* doesn't end in ".dat", then it is presumed to be the output file, and
* the input file is that name prepended by a ".dat". If both are given
* they are treated literally as the input and output files.
*
* Ken Arnold Aug 13, 1978
*/
#include <sys/param.h>
#include <ctype.h>
#include <err.h>
#include <stdio.h>
#include <string.h>
#include "strfile.h"
char *Infile, /* name of input file */
Datafile[MAXPATHLEN], /* name of data file */
Delimch; /* delimiter character */
FILE *Inf, *Dataf;
void getargs(char *[]);
void order_unstr(STRFILE *);
/* ARGSUSED */
int
main(int ac, char *av[])
{
static STRFILE tbl; /* description table */
getargs(av);
if ((Inf = fopen(Infile, "r")) == NULL)
err(1, "fopen `%s'", Infile);
if ((Dataf = fopen(Datafile, "r")) == NULL)
err(1, "fopen `%s'", Datafile);
(void) fread(&tbl.str_version, sizeof(tbl.str_version), 1, Dataf);
(void) fread(&tbl.str_numstr, sizeof(tbl.str_numstr), 1, Dataf);
(void) fread(&tbl.str_longlen, sizeof(tbl.str_longlen), 1, Dataf);
(void) fread(&tbl.str_shortlen, sizeof(tbl.str_shortlen), 1, Dataf);
(void) fread(&tbl.str_flags, sizeof(tbl.str_flags), 1, Dataf);
(void) fread( tbl.stuff, sizeof(tbl.stuff), 1, Dataf);
if (!(tbl.str_flags & (STR_ORDERED | STR_RANDOM)))
errx(1, "nothing to do -- table in file order");
Delimch = tbl.str_delim;
order_unstr(&tbl);
(void) fclose(Inf);
(void) fclose(Dataf);
exit(0);
}
void
getargs(char *av[])
{
if (!*++av) {
(void) fprintf(stderr, "usage: unstr datafile\n");
exit(1);
}
Infile = *av;
(void) strlcpy(Datafile, Infile, sizeof(Datafile));
if (strlcat(Datafile, ".dat", sizeof(Datafile)) >= MAXPATHLEN)
errx(1, "`%s': filename too long", Infile);
}
void
order_unstr(STRFILE *tbl)
{
unsigned int i;
char *sp;
int32_t pos;
char buf[BUFSIZ];
for (i = 0; i < tbl->str_numstr; i++) {
(void) fread((char *) &pos, 1, sizeof pos, Dataf);
(void) fseek(Inf, ntohl(pos), SEEK_SET);
if (i != 0)
(void) printf("%c\n", Delimch);
for (;;) {
sp = fgets(buf, sizeof buf, Inf);
if (sp == NULL || STR_ENDSTRING(sp, *tbl))
break;
else
fputs(sp, stdout);
}
}
}
|
