145 lines
2.8 KiB
C
145 lines
2.8 KiB
C
/*
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* fake - make up random lines resembling history-file entries, reproducibly
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*
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* -Log-
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <string.h>
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#define MAXSTR 500 /* For sizing strings -- DON'T use BUFSIZ! */
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#define STREQ(a, b) (*(a) == *(b) && strcmp((a), (b)) == 0)
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#ifndef lint
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static char RCSid[] = "$Header: /rel/cvsfiles/devo/libio/dbz/fake.c,v 1.2 1993/10/25 20:02:42 bothner Exp $";
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#endif
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int midonly = 0; /* just message ids, rest not realistic */
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int tag = 0; /* tag lines with random digit for later use */
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int expired = -1; /* percentage of lines to be expired */
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int debug = 0;
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char *progname;
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char *inname; /* filename for messages etc. */
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long lineno; /* line number for messages etc. */
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void doline();
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void addchars();
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void seed();
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/*
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- main - parse arguments and handle options
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*/
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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int c;
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int errflg = 0;
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FILE *in;
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struct stat statbuf;
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extern int optind;
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extern char *optarg;
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void process();
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register long no;
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extern long atol();
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char line[MAXSTR];
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progname = argv[0];
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while ((c = getopt(argc, argv, "ms:te:d")) != EOF)
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switch (c) {
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case 'm': /* message-ids only */
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midonly = 1;
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break;
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case 's': /* seed */
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seed(atol(optarg));
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break;
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case 't': /* tag lines with a random digit */
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tag = 1;
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break;
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case 'e': /* percentage to be expired */
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expired = atoi(optarg);
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break;
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case 'd': /* Debugging. */
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debug++;
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break;
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case '?':
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default:
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errflg++;
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break;
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}
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if (errflg || optind != argc - 1) {
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fprintf(stderr, "usage: %s ", progname);
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fprintf(stderr, "[-m] [-s seed] length\n");
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exit(2);
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}
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for (no = atol(argv[optind]); no > 0; no--) {
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doline(line);
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puts(line);
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}
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#ifdef DBZ_FINISH
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DBZ_FINISH;
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#endif
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exit(0);
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}
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/*
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- doline - generate random history pseudo-line
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*/
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void
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doline(buf)
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char *buf;
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{
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char tagch[2];
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(void) strcpy(buf, "<");
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addchars(buf, range(4, 20));
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(void) strcat(buf, "@");
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addchars(buf, range(8, 20));
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if (midonly)
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(void) strcat(buf, ">\tx");
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else {
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if (tag) {
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tagch[0] = "1234567890"[range(0,9)];
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tagch[1] = '\0';
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(void) strcat(buf, ">\t");
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(void) strcat(buf, tagch);
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(void) strcat(buf, "00000000~-");
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} else
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(void) strcat(buf, ">\t1234567890~-");
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}
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if (range(1, 100) > expired) {
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if (midonly)
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(void) strcat(buf, "\tx");
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else {
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(void) strcat(buf, "\t");
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addchars(buf, range(10, 30));
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}
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}
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}
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/*
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- addchars - generate n random characters suitable for history file
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*/
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void
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addchars(buf, len)
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char *buf;
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int len;
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{
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register int i;
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register char *p = buf + strlen(buf);
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static char vocab[] = "1234567890.abcde.fghij.klmno.pqrst.uvwxyz.\
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1234567890.ABCDE.FGHIJ.KLMNO.PQRST.UVWXYZ.1234567890.\
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1234567890.abcde.fghij.klmno.pqrst.uvwxyz.1234567890";
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for (i = len; i > 0; i--)
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*p++ = vocab[range(0, sizeof(vocab)-2)];
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*p++ = '\0';
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}
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