1/*-
2 * Copyright (c) 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static const char copyright[] =
36"@(#) Copyright (c) 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41#if 0
42static char sccsid[] = "@(#)jot.c 8.1 (Berkeley) 6/6/93";
43#endif
44static const char rcsid[] =
|
45 "$FreeBSD: head/usr.bin/jot/jot.c 62871 2000-07-10 06:02:13Z kris $";
|
| 45 "$FreeBSD: head/usr.bin/jot/jot.c 77276 2001-05-27 21:08:19Z dd $"; |
46#endif /* not lint */
47
48/*
49 * jot - print sequential or random data
50 *
51 * Author: John Kunze, Office of Comp. Affairs, UCB
52 */
53
54#include <ctype.h>
55#include <err.h>
56#include <limits.h>
57#include <stdio.h>
58#include <stdlib.h>
59#include <string.h>
60#include <time.h>
61#include <unistd.h>
62
63#define REPS_DEF 100
64#define BEGIN_DEF 1
65#define ENDER_DEF 100
66#define STEP_DEF 1
67
|
68#define isdefault(s) (strcmp((s), "-") == 0)
|
| 68#define is_default(s) (strcmp((s), "-") == 0) |
69
70double begin;
71double ender;
72double s;
73long reps;
74int randomize;
75int infinity;
76int boring;
77int prec;
78int longdata;
79int intdata;
80int chardata;
81int nosign;
82int nofinalnl;
83char *sepstring = "\n";
84char format[BUFSIZ];
85
|
86void getargs __P((int, char *[]));
87void getformat __P((void));
|
| 86void getformat __P((void)); |
87int getprec __P((char *));
|
89int putdata __P((double, long));
90static void usage __P((void));
|
88int putdata __P((double, long));
89static void usage __P((void)); |
90
91int
92main(argc, argv)
93 int argc;
94 char *argv[];
95{
96 double xd, yd;
97 long id;
|
99 register double *x = &xd;
100 register double *y = &yd;
101 register long *i = &id;
|
98 double *x = &xd;
99 double *y = &yd;
100 long *i = &id;
101 unsigned int mask = 0;
102 int n = 0;
103 int ch; |
104
|
103 getargs(argc, argv);
104 if (randomize) {
105 *x = (ender - begin) * (ender > begin ? 1 : -1);
106 for (*i = 1; *i <= reps || infinity; (*i)++) {
107 *y = (double) arc4random() / ULONG_MAX;
108 if (putdata(*y * *x + begin, reps - *i))
109 errx(1, "range error in conversion");
110 }
111 } else
112 for (*i = 1, *x = begin; *i <= reps || infinity; (*i)++, *x += s)
113 if (putdata(*x, reps - *i))
114 errx(1, "range error in conversion");
115 if (!nofinalnl)
116 putchar('\n');
117 exit(0);
118}
119
120void
121getargs(ac, av)
122 int ac;
123 char *av[];
124{
125 register unsigned int mask = 0;
126 register int n = 0;
127
128 while (--ac && **++av == '-' && !isdefault(*av))
129 switch ((*av)[1]) {
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105 while ((ch = getopt(argc, argv, "rb:w:cs:np:")) != -1)
106 switch ((char)ch) { |
107 case 'r':
108 randomize = 1;
109 break;
110 case 'c':
111 chardata = 1;
112 break;
113 case 'n':
114 nofinalnl = 1;
115 break;
116 case 'b':
117 boring = 1;
|
| 118 /* FALLTHROUGH */ |
119 case 'w':
|
142 if ((*av)[2])
143 strcpy(format, *av + 2);
144 else if (!--ac)
145 errx(1, "need context word after -w or -b");
146 else
147 strcpy(format, *++av);
|
120 if (strlcpy(format, optarg, sizeof(format)) >=
121 sizeof(format))
122 errx(1, "-%c word too long", ch); |
123 break;
124 case 's':
|
150 if ((*av)[2])
151 sepstring = *av + 2;
152 else if (!--ac)
153 errx(1, "need string after -s");
154 else
155 sepstring = *++av;
|
| 125 sepstring = optarg; |
126 break;
127 case 'p':
|
158 if ((*av)[2])
159 prec = atoi(*av + 2);
160 else if (!--ac)
161 errx(1, "need number after -p");
162 else
163 prec = atoi(*++av);
|
| 128 prec = atoi(optarg); |
129 if (prec <= 0)
130 errx(1, "bad precision value");
131 break;
132 default:
133 usage();
134 }
|
135 argc -= optind;
136 argv += optind; |
137
|
171 switch (ac) { /* examine args right to left, falling thru cases */
|
| 138 switch (argc) { /* examine args right to left, falling thru cases */ |
139 case 4:
|
173 if (!isdefault(av[3])) {
174 if (!sscanf(av[3], "%lf", &s))
175 errx(1, "bad s value: %s", av[3]);
|
140 if (!is_default(argv[3])) {
141 if (!sscanf(argv[3], "%lf", &s))
142 errx(1, "bad s value: %s", argv[3]); |
143 mask |= 01;
144 }
145 case 3:
|
179 if (!isdefault(av[2])) {
180 if (!sscanf(av[2], "%lf", &ender))
181 ender = av[2][strlen(av[2])-1];
|
146 if (!is_default(argv[2])) {
147 if (!sscanf(argv[2], "%lf", &ender))
148 ender = argv[2][strlen(argv[2])-1]; |
149 mask |= 02;
150 if (!prec)
|
184 n = getprec(av[2]);
|
| 151 n = getprec(argv[2]); |
152 }
153 case 2:
|
187 if (!isdefault(av[1])) {
188 if (!sscanf(av[1], "%lf", &begin))
189 begin = av[1][strlen(av[1])-1];
|
154 if (!is_default(argv[1])) {
155 if (!sscanf(argv[1], "%lf", &begin))
156 begin = argv[1][strlen(argv[1])-1]; |
157 mask |= 04;
158 if (!prec)
|
192 prec = getprec(av[1]);
|
| 159 prec = getprec(argv[1]); |
160 if (n > prec) /* maximum precision */
161 prec = n;
162 }
163 case 1:
|
197 if (!isdefault(av[0])) {
198 if (!sscanf(av[0], "%ld", &reps))
199 errx(1, "bad reps value: %s", av[0]);
|
164 if (!is_default(argv[0])) {
165 if (!sscanf(argv[0], "%ld", &reps))
166 errx(1, "bad reps value: %s", argv[0]); |
167 mask |= 010;
168 }
169 break;
170 case 0:
171 usage();
172 default:
|
206 errx(1, "too many arguments. What do you mean by %s?", av[4]);
|
173 errx(1, "too many arguments. What do you mean by %s?",
174 argv[4]); |
175 }
176 getformat();
177 while (mask) /* 4 bit mask has 1's where last 4 args were given */
178 switch (mask) { /* fill in the 0's by default or computation */
179 case 001:
180 reps = REPS_DEF;
181 mask = 011;
182 break;
183 case 002:
184 reps = REPS_DEF;
185 mask = 012;
186 break;
187 case 003:
188 reps = REPS_DEF;
189 mask = 013;
190 break;
191 case 004:
192 reps = REPS_DEF;
193 mask = 014;
194 break;
195 case 005:
196 reps = REPS_DEF;
197 mask = 015;
198 break;
199 case 006:
200 reps = REPS_DEF;
201 mask = 016;
202 break;
203 case 007:
204 if (randomize) {
205 reps = REPS_DEF;
206 mask = 0;
207 break;
208 }
209 if (s == 0.0) {
210 reps = 0;
211 mask = 0;
212 break;
213 }
214 reps = (ender - begin + s) / s;
215 if (reps <= 0)
216 errx(1, "impossible stepsize");
217 mask = 0;
218 break;
219 case 010:
220 begin = BEGIN_DEF;
221 mask = 014;
222 break;
223 case 011:
224 begin = BEGIN_DEF;
225 mask = 015;
226 break;
227 case 012:
|
260 s = (randomize ? -1.0 : STEP_DEF);
|
| 228 s = (randomize ? time(NULL) : STEP_DEF); |
229 mask = 013;
230 break;
231 case 013:
232 if (randomize)
233 begin = BEGIN_DEF;
234 else if (reps == 0)
235 errx(1, "must specify begin if reps == 0");
|
268 else
269 begin = ender - reps * s + s;
|
| 236 begin = ender - reps * s + s; |
237 mask = 0;
238 break;
239 case 014:
240 s = (randomize ? -1.0 : STEP_DEF);
241 mask = 015;
242 break;
243 case 015:
244 if (randomize)
245 ender = ENDER_DEF;
246 else
247 ender = begin + reps * s - s;
248 mask = 0;
249 break;
250 case 016:
251 if (randomize)
252 s = -1.0;
253 else if (reps == 0)
254 errx(1, "infinite sequences cannot be bounded");
255 else if (reps == 1)
256 s = 0.0;
257 else
258 s = (ender - begin) / (reps - 1);
259 mask = 0;
260 break;
261 case 017: /* if reps given and implied, */
262 if (!randomize && s != 0.0) {
263 long t = (ender - begin + s) / s;
264 if (t <= 0)
265 errx(1, "impossible stepsize");
266 if (t < reps) /* take lesser */
267 reps = t;
268 }
269 mask = 0;
270 break;
271 default:
272 errx(1, "bad mask");
273 }
274 if (reps == 0)
275 infinity = 1;
|
276 if (randomize) {
277 *x = (ender - begin) * (ender > begin ? 1 : -1);
278 for (*i = 1; *i <= reps || infinity; (*i)++) {
279 *y = (double) arc4random() / ULONG_MAX;
280 if (putdata(*y * *x + begin, reps - *i))
281 errx(1, "range error in conversion");
282 }
283 } else
284 for (*i = 1, *x = begin; *i <= reps || infinity; (*i)++, *x += s)
285 if (putdata(*x, reps - *i))
286 errx(1, "range error in conversion");
287 if (!nofinalnl)
288 putchar('\n');
289 exit(0); |
290}
291
292int
293putdata(x, notlast)
294 double x;
295 long notlast;
296{
297
298 if (boring)
299 printf("%s", format);
300 else if (longdata && nosign) {
301 if (x <= (double)ULONG_MAX && x >= (double)0)
302 printf(format, (unsigned long)x);
303 else
304 return (1);
305 } else if (longdata) {
306 if (x <= (double)LONG_MAX && x >= (double)LONG_MIN)
307 printf(format, (long)x);
308 else
309 return (1);
310 } else if (chardata || (intdata && !nosign)) {
311 if (x <= (double)INT_MAX && x >= (double)INT_MIN)
312 printf(format, (int)x);
313 else
314 return (1);
315 } else if (intdata) {
316 if (x <= (double)UINT_MAX && x >= (double)0)
317 printf(format, (unsigned int)x);
318 else
319 return (1);
320
321 } else
322 printf(format, x);
323 if (notlast != 0)
324 fputs(sepstring, stdout);
325
326 return (0);
327}
328
329static void
330usage()
331{
332 fprintf(stderr, "%s\n%s\n",
333 "usage: jot [-cnr] [-b word] [-w word] [-s string] [-p precision]",
334 " [reps [begin [end [s]]]]");
335 exit(1);
336}
337
338int
339getprec(s)
340 char *s;
341{
|
361 register char *p;
362 register char *q;
|
342 char *p;
343 char *q; |
344
345 for (p = s; *p; p++)
346 if (*p == '.')
347 break;
348 if (!*p)
349 return (0);
350 for (q = ++p; *p; p++)
351 if (!isdigit(*p))
352 break;
353 return (p - q);
354}
355
356void
357getformat()
358{
|
378 register char *p;
|
| 359 char *p; |
360 int dot, hash, space, sign, numbers = 0;
|
| 361 size_t sz; |
362 char *s;
363
364 if (boring) /* no need to bother */
365 return;
366 for (p = format; *p; p++) /* look for '%' */
367 if (*p == '%' && *(p+1) != '%') /* leave %% alone */
368 break;
|
387 if (!*p && !chardata)
388 sprintf(p, "%%.%df", prec);
389 else if (!*p && chardata) {
390 strcpy(p, "%c");
|
369 sz = sizeof(format) - strlen(format) - 1;
370 if (!*p && !chardata) {
371 if (snprintf(p, sz, "%%.%df", prec) >= (int)sz)
372 errx(1, "-w word too long");
373 } else if (!*p && chardata) {
374 if (strlcpy(p, "%c", sz) >= sz)
375 errx(1, "-w word too long"); |
376 intdata = 1;
|
392 } else if (!*(p+1))
|
377 } else if (!*(p+1)) {
378 if (sz <= 0)
379 errx(1, "-w word too long"); |
380 strcat(format, "%"); /* cannot end in single '%' */
|
394 else {
|
| 381 } else { |
382 /*
383 * Allow conversion format specifiers of the form
384 * %[#][ ][{+,-}][0-9]*[.[0-9]*]? where ? must be one of
385 * [l]{d,i,o,u,x} or {f,e,g,E,G,d,o,x,D,O,U,X,c,u}
386 */
387 s = p++;
388 dot = hash = space = sign = numbers = 0;
389 while (!isalpha(*p)) {
390 if (isdigit(*p)) {
391 numbers++;
392 p++;
393 } else if ((*p == '#' && !(numbers|dot|sign|space|
394 hash++)) ||
395 (*p == ' ' && !(numbers|dot|space++)) ||
396 ((*p == '+' || *p == '-') && !(numbers|dot|sign++))
397 || (*p == '.' && !(dot++)))
398 p++;
399 else
400 goto fmt_broken;
401 }
402 if (*p == 'l') {
403 longdata = 1;
404 if (*++p == 'l') {
405 if (p[1] != '\0')
406 p++;
407 goto fmt_broken;
408 }
409 }
410 switch (*p) {
411 case 'o': case 'u': case 'x': case 'X':
412 intdata = nosign = 1;
413 break;
414 case 'd': case 'i':
415 intdata = 1;
416 break;
417 case 'D':
418 if (!longdata) {
419 intdata = 1;
420 break;
421 }
422 case 'O': case 'U':
423 if (!longdata) {
424 intdata = nosign = 1;
425 break;
426 }
427 case 'c':
428 if (!(intdata | longdata)) {
429 chardata = 1;
430 break;
431 }
432 case 'h': case 'n': case 'p': case 'q': case 's': case 'L':
433 case '$': case '*':
434 goto fmt_broken;
435 case 'f': case 'e': case 'g': case 'E': case 'G':
436 if (!longdata)
437 break;
438 /* FALLTHROUGH */
439 default:
440fmt_broken:
441 *++p = '\0';
442 errx(1, "illegal or unsupported format '%s'", s);
443 /* NOTREACHED */
444 }
445 while (*++p)
446 if (*p == '%' && *(p+1) && *(p+1) != '%')
447 errx(1, "too many conversions");
448 else if (*p == '%' && *(p+1) == '%')
449 p++;
450 else if (*p == '%' && !*(p+1)) {
451 strcat(format, "%");
452 break;
453 }
454 }
455}
|