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 * Kenneth Almquist.
7 *
8 * Redistribution and use in source and binary forms, with or without

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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 * $Id: show.c,v 1.4 1996/09/03 14:16:00 peter Exp $
37 */
38
39#ifndef lint
40static char const sccsid[] = "@(#)show.c 8.3 (Berkeley) 5/4/95";
41#endif /* not lint */
42
43#include <stdio.h>
44#if __STDC__
45#include <stdarg.h>
46#else
47#include <varargs.h>
48#endif

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264 int i;
265
266 for (i = 0 ; i < amount ; i++) {
267 if (pfx && i == amount - 1)
268 fputs(pfx, fp);
269 putc('\t', fp);
270 }
271}
272
273
274/*
275 * Debugging stuff.
276 */
277
278
279FILE *tracefile;
280
281#if DEBUG == 2
282int debug = 1;
283#else
284int debug = 0;
285#endif
286
287
288void
289trputc(c)
290 int c;
291{
292 if (tracefile == NULL)
293 return;
294 putc(c, tracefile);
295 if (c == '\n')
296 fflush(tracefile);
297}
298
299
300void
301#if __STDC__
302trace(const char *fmt, ...)
303#else
304trace(va_alist)
305 va_dcl
306#endif
307{
308 va_list va;
309#if __STDC__
310 va_start(va, fmt);
311#else
312 char *fmt;
313 va_start(va);
314 fmt = va_arg(va, char *);
315#endif
316 if (tracefile != NULL) {
317 (void) vfprintf(tracefile, fmt, va);
318 if (strchr(fmt, '\n'))
319 (void) fflush(tracefile);
320 }
321 va_end(va);
322}
323
324
325void
326trputs(s)
327 char *s;
328{
329 if (tracefile == NULL)
330 return;
331 fputs(s, tracefile);
332 if (strchr(s, '\n'))
333 fflush(tracefile);
334}
335
336
337static void
338trstring(s)
339 char *s;
340{
341 register char *p;
342 char c;
343
344 if (tracefile == NULL)

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368 putc(*p >> 3 & 07, tracefile);
369 putc(*p & 07, tracefile);
370 }
371 break;
372 }
373 }
374 putc('"', tracefile);
375}
376
377
378void
379trargs(ap)
380 char **ap;
381{
382 if (tracefile == NULL)
383 return;
384 while (*ap) {
385 trstring(*ap++);
386 if (*ap)
387 putc(' ', tracefile);
388 else
389 putc('\n', tracefile);
390 }
391 fflush(tracefile);
392}
393
394
395void
396opentrace() {
397 char s[100];
398 char *getenv();
399#ifdef O_APPEND
400 int flags;
401#endif
402
403 if (!debug)
404 return;

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422 return;
423 }
424#ifdef O_APPEND
425 if ((flags = fcntl(fileno(tracefile), F_GETFL, 0)) >= 0)
426 fcntl(fileno(tracefile), F_SETFL, flags | O_APPEND);
427#endif
428 fputs("\nTracing started.\n", tracefile);
429 fflush(tracefile);
430}
431#endif /* DEBUG */