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/*
* The following code has been derived chiefly from the BSD distributions
* of the utility program unstr and the random quote displayer fortune.
* The utility produced by this code shares characteristics of both
* (it might be regarded as a minimalist implementation of fortune, for
* large values of 'minimal'), and is here offered so as to have the
* minimal necessary tools for rabbiting a strfile routine into some other,
* more significant program, all in one place. A programmer who cares and
* has the proper training could probably clean this up significantly; it's
* all stolen code (first rule of programming: steal) hacked together to
* fit. Or, to paraphrase the old saw about how the British built ships,
* it's coded by the mile and cut off to order. In that analogy, this
* program's about an inch--and separated with an axe.
*
* Axe murderess programming. Wotta concept!
*
* Use at your own peril, especially as a pattern (kludge, kludge!). This
* program, at least, shouldn't have any real chance of corrupting data,
* though; it opens files ro and dumps to the screen. If you redirect
* output, you definitely do so at your own peril (I lost six hours of
* editing on a fortune file that way, by redirecting the output of unstr
* before it had an outputfile option, trying to skip over the mv x.sorted
* x step. Axe murderess redirection, in that case).
*
* Blame Amy A. Lewis. September, 1995. alewis@email.unc.edu
*/
/*-
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*/
/* randstr repeats the minimum functionality of the fortune program. It
* finds the fortune text or data file specified on the command line --
* one or the other, not both -- generates a random number, and displays
* the text string indexed. No provision is made for any other command
* line switches. At all.
*
* Usage:
*
* randstr filename[.ext]
*
* Example: run sed or Perl over your /etc/passwd, and kick out a
* strfile-format file containing lognames on the first line and full
* names on the second. Write a script called 'lottery' which is
* called once a month from crontab; it in turn calls randstr lusers,
* and the winning luser gets a prize notification sent by email from
* the lottery script. Living up to promises is optional.
*
* Note: if you're a sysadmin who regularly reads _Mein Kampf_ for the
* deep truths buried in it, and believe in Truth, Justice, and the
* American Family, you could use this to replace fortune, by pointing
* it at a small, Family Values database. The great advantage to this,
* in my opinion, is that it wouldn't take up any disk space at all.
* Who're you gonna quote? Dan Quayle?
*/
#include <netinet/in.h>
#include <sys/param.h>
#include "strfile.h"
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#ifndef MAXPATHLEN
#define MAXPATHLEN 1024
#endif /* MAXPATHLEN */
char *Infile, /* name of input file */
Datafile[MAXPATHLEN], /* name of data file */
Delimch; /* delimiter character */
FILE *Inf, *Dataf, *Outf;
off_t pos, Seekpts[2]; /* seek pointers to fortunes */
void getargs(int ac, char *av[])
{
extern int optind;
char *extc;
av += optind + 1;
if (*av)
{
Infile = *av;
/* Hmm. Don't output anything if we can help it.
* fprintf(stderr, "Input file: %s\n",Infile); */
if (!strrchr(Infile, '.'))
{
strcpy(Datafile, Infile);
strcat(Datafile, ".dat");
}
else
{
strcpy(Datafile, Infile);
extc = strrchr(Infile, '.');
*extc = '\0';
}
}
else
/* {
* Don't write out errors here, either; trust in exit codes and sh
* fprintf(stderr, "No input file name\n");
* fprintf(stderr, "Usage:\n\tunstr [-c C] datafile[.ext] [outputfile]\n");
*/ exit(1);
/* } */
}
/*
* get_pos:
* Get the position from the pos file, if there is one. If not,
* return a random number.
*/
void get_pos(STRFILE * fp)
{
pos = random() % fp->str_numstr;
if (++(pos) >= fp->str_numstr)
pos -= fp->str_numstr;
}
/*
* get_fort:
* Get the fortune data file's seek pointer for the next fortune.
*/
void get_fort(STRFILE fp)
{
register int choice;
choice = random() % fp.str_numstr;
get_pos(&fp);
fseek(Dataf, (long) (sizeof fp + pos * sizeof Seekpts[0]), 0);
fread(Seekpts, sizeof Seekpts, 1, Dataf);
Seekpts[0] = ntohl(Seekpts[0]);
Seekpts[1] = ntohl(Seekpts[1]);
}
void display(FILE * fp, STRFILE table)
{
register char *p, ch;
unsigned char line[BUFSIZ];
int i;
fseek(fp, (long) Seekpts[0], 0);
for (i = 0; fgets(line, sizeof line, fp) != NULL &&
!STR_ENDSTRING(line, table); i++)
{
if (table.str_flags & STR_ROTATED)
for (p = line; (ch = *p); ++p)
if (isupper(ch))
*p = 'A' + (ch - 'A' + 13) % 26;
else if (islower(ch))
*p = 'a' + (ch - 'a' + 13) % 26;
fputs(line, stdout);
}
fflush(stdout);
}
int main(int ac, char **av)
{
static STRFILE tbl; /* description table */
getargs(ac, av);
if ((Inf = fopen(Infile, "r")) == NULL)
{
perror(Infile);
exit(1);
}
if ((Dataf = fopen(Datafile, "r")) == NULL)
{
perror(Datafile);
exit(1);
}
fread((char *) &tbl, sizeof tbl, 1, Dataf);
tbl.str_version = ntohl(tbl.str_version);
tbl.str_numstr = ntohl(tbl.str_numstr);
tbl.str_longlen = ntohl(tbl.str_longlen);
tbl.str_shortlen = ntohl(tbl.str_shortlen);
tbl.str_flags = ntohl(tbl.str_flags);
srandom((int) (time((time_t *) NULL) + getpid()));
get_fort(tbl);
display(Inf, tbl);
exit(0);
fclose(Inf);
fclose(Dataf);
fclose(Outf);
exit(0);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.