1994-05-27 12:33:43 +00:00
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/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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1997-07-10 06:48:24 +00:00
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#if 0
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1994-05-27 12:33:43 +00:00
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static char sccsid[] = "@(#)parse.c 8.1 (Berkeley) 6/6/93";
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1997-07-10 06:48:24 +00:00
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#endif
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1994-05-27 12:33:43 +00:00
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#endif /* not lint */
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2002-06-30 05:25:07 +00:00
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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1994-05-27 12:33:43 +00:00
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#include <sys/types.h>
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1997-07-10 06:48:24 +00:00
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#include <err.h>
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1994-05-27 12:33:43 +00:00
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include "hexdump.h"
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FU *endfu; /* format at end-of-data */
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void
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2002-09-04 23:29:10 +00:00
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addfile(char *name)
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1994-05-27 12:33:43 +00:00
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{
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2002-09-04 23:29:10 +00:00
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unsigned char *p;
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1994-05-27 12:33:43 +00:00
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FILE *fp;
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int ch;
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char buf[2048 + 1];
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if ((fp = fopen(name, "r")) == NULL)
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1997-07-10 06:48:24 +00:00
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err(1, "%s", name);
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1994-05-27 12:33:43 +00:00
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while (fgets(buf, sizeof(buf), fp)) {
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2012-01-03 18:51:58 +00:00
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if (!(p = strchr(buf, '\n'))) {
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1997-07-10 06:48:24 +00:00
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warnx("line too long");
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1994-05-27 12:33:43 +00:00
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while ((ch = getchar()) != '\n' && ch != EOF);
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continue;
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}
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*p = '\0';
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for (p = buf; *p && isspace(*p); ++p);
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if (!*p || *p == '#')
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continue;
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add(p);
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}
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(void)fclose(fp);
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}
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void
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2002-09-04 23:29:10 +00:00
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add(const char *fmt)
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1994-05-27 12:33:43 +00:00
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{
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2001-12-02 12:09:41 +00:00
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unsigned const char *p, *savep;
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1994-05-27 12:33:43 +00:00
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static FS **nextfs;
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FS *tfs;
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FU *tfu, **nextfu;
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/* start new linked list of format units */
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2001-07-24 14:11:09 +00:00
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if ((tfs = calloc(1, sizeof(FS))) == NULL)
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err(1, NULL);
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1994-05-27 12:33:43 +00:00
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if (!fshead)
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fshead = tfs;
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else
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*nextfs = tfs;
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nextfs = &tfs->nextfs;
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nextfu = &tfs->nextfu;
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/* take the format string and break it up into format units */
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for (p = fmt;;) {
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/* skip leading white space */
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for (; isspace(*p); ++p);
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if (!*p)
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break;
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/* allocate a new format unit and link it in */
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2001-07-24 14:11:09 +00:00
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if ((tfu = calloc(1, sizeof(FU))) == NULL)
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err(1, NULL);
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1994-05-27 12:33:43 +00:00
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*nextfu = tfu;
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nextfu = &tfu->nextfu;
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tfu->reps = 1;
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/* if leading digit, repetition count */
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if (isdigit(*p)) {
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for (savep = p; isdigit(*p); ++p);
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if (!isspace(*p) && *p != '/')
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badfmt(fmt);
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/* may overwrite either white space or slash */
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tfu->reps = atoi(savep);
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tfu->flags = F_SETREP;
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/* skip trailing white space */
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for (++p; isspace(*p); ++p);
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}
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/* skip slash and trailing white space */
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if (*p == '/')
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while (isspace(*++p));
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/* byte count */
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if (isdigit(*p)) {
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for (savep = p; isdigit(*p); ++p);
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if (!isspace(*p))
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badfmt(fmt);
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tfu->bcnt = atoi(savep);
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/* skip trailing white space */
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for (++p; isspace(*p); ++p);
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}
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/* format */
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if (*p != '"')
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badfmt(fmt);
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for (savep = ++p; *p != '"';)
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if (*p++ == 0)
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badfmt(fmt);
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if (!(tfu->fmt = malloc(p - savep + 1)))
|
2001-07-24 14:11:09 +00:00
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err(1, NULL);
|
2009-06-23 23:32:24 +00:00
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(void) strlcpy(tfu->fmt, savep, p - savep + 1);
|
1994-05-27 12:33:43 +00:00
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escape(tfu->fmt);
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p++;
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}
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}
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|
2002-03-07 23:01:55 +00:00
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static const char *spec = ".#-+ 0123456789";
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1994-05-27 12:33:43 +00:00
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int
|
2002-09-04 23:29:10 +00:00
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size(FS *fs)
|
1994-05-27 12:33:43 +00:00
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{
|
2002-09-04 23:29:10 +00:00
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FU *fu;
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int bcnt, cursize;
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unsigned char *fmt;
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1994-05-27 12:33:43 +00:00
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int prec;
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/* figure out the data block size needed for each format unit */
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for (cursize = 0, fu = fs->nextfu; fu; fu = fu->nextfu) {
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if (fu->bcnt) {
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cursize += fu->bcnt * fu->reps;
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continue;
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}
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for (bcnt = prec = 0, fmt = fu->fmt; *fmt; ++fmt) {
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|
if (*fmt != '%')
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continue;
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/*
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|
* skip any special chars -- save precision in
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|
* case it's a %s format.
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*/
|
2012-01-03 18:51:58 +00:00
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while (strchr(spec + 1, *++fmt));
|
1994-05-27 12:33:43 +00:00
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if (*fmt == '.' && isdigit(*++fmt)) {
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prec = atoi(fmt);
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|
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while (isdigit(*++fmt));
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|
}
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switch(*fmt) {
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case 'c':
|
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|
bcnt += 1;
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|
break;
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case 'd': case 'i': case 'o': case 'u':
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case 'x': case 'X':
|
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bcnt += 4;
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|
break;
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|
case 'e': case 'E': case 'f': case 'g': case 'G':
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|
bcnt += 8;
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|
break;
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|
case 's':
|
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|
bcnt += prec;
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|
break;
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|
case '_':
|
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switch(*++fmt) {
|
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|
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case 'c': case 'p': case 'u':
|
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|
bcnt += 1;
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break;
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|
}
|
|
|
|
}
|
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|
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}
|
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|
cursize += bcnt * fu->reps;
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|
|
|
}
|
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|
|
return (cursize);
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|
|
|
}
|
|
|
|
|
|
|
|
void
|
2002-09-04 23:29:10 +00:00
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|
rewrite(FS *fs)
|
1994-05-27 12:33:43 +00:00
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|
{
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|
enum { NOTOKAY, USEBCNT, USEPREC } sokay;
|
2002-09-04 23:29:10 +00:00
|
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|
PR *pr, **nextpr;
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|
FU *fu;
|
1997-11-04 05:33:15 +00:00
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|
unsigned char *p1, *p2, *fmtp;
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|
|
char savech, cs[3];
|
1994-05-27 12:33:43 +00:00
|
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|
int nconv, prec;
|
2006-08-09 19:12:10 +00:00
|
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size_t len;
|
1994-05-27 12:33:43 +00:00
|
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|
|
2004-07-22 13:14:42 +00:00
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|
nextpr = NULL;
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prec = 0;
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|
|
1994-05-27 12:33:43 +00:00
|
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|
for (fu = fs->nextfu; fu; fu = fu->nextfu) {
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|
|
/*
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|
|
* Break each format unit into print units; each conversion
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|
* character gets its own.
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|
*/
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|
for (nconv = 0, fmtp = fu->fmt; *fmtp; nextpr = &pr->nextpr) {
|
2001-07-24 14:11:09 +00:00
|
|
|
if ((pr = calloc(1, sizeof(PR))) == NULL)
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|
|
err(1, NULL);
|
1994-05-27 12:33:43 +00:00
|
|
|
if (!fu->nextpr)
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|
|
fu->nextpr = pr;
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|
else
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|
|
|
*nextpr = pr;
|
|
|
|
|
|
|
|
/* Skip preceding text and up to the next % sign. */
|
|
|
|
for (p1 = fmtp; *p1 && *p1 != '%'; ++p1);
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|
|
|
|
|
|
|
/* Only text in the string. */
|
|
|
|
if (!*p1) {
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|
pr->fmt = fmtp;
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|
|
pr->flags = F_TEXT;
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|
|
break;
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|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Get precision for %s -- if have a byte count, don't
|
|
|
|
* need it.
|
|
|
|
*/
|
|
|
|
if (fu->bcnt) {
|
|
|
|
sokay = USEBCNT;
|
|
|
|
/* Skip to conversion character. */
|
2012-01-03 18:51:58 +00:00
|
|
|
for (++p1; strchr(spec, *p1); ++p1);
|
1994-05-27 12:33:43 +00:00
|
|
|
} else {
|
|
|
|
/* Skip any special chars, field width. */
|
2012-01-03 18:51:58 +00:00
|
|
|
while (strchr(spec + 1, *++p1));
|
1994-05-27 12:33:43 +00:00
|
|
|
if (*p1 == '.' && isdigit(*++p1)) {
|
|
|
|
sokay = USEPREC;
|
|
|
|
prec = atoi(p1);
|
|
|
|
while (isdigit(*++p1));
|
|
|
|
} else
|
|
|
|
sokay = NOTOKAY;
|
|
|
|
}
|
|
|
|
|
|
|
|
p2 = p1 + 1; /* Set end pointer. */
|
|
|
|
cs[0] = *p1; /* Set conversion string. */
|
|
|
|
cs[1] = '\0';
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Figure out the byte count for each conversion;
|
|
|
|
* rewrite the format as necessary, set up blank-
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|
|
|
* padding for end of data.
|
|
|
|
*/
|
|
|
|
switch(cs[0]) {
|
|
|
|
case 'c':
|
|
|
|
pr->flags = F_CHAR;
|
|
|
|
switch(fu->bcnt) {
|
|
|
|
case 0: case 1:
|
|
|
|
pr->bcnt = 1;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
p1[1] = '\0';
|
|
|
|
badcnt(p1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'd': case 'i':
|
|
|
|
pr->flags = F_INT;
|
|
|
|
goto isint;
|
|
|
|
case 'o': case 'u': case 'x': case 'X':
|
|
|
|
pr->flags = F_UINT;
|
|
|
|
isint: cs[2] = '\0';
|
|
|
|
cs[1] = cs[0];
|
|
|
|
cs[0] = 'q';
|
|
|
|
switch(fu->bcnt) {
|
|
|
|
case 0: case 4:
|
|
|
|
pr->bcnt = 4;
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
pr->bcnt = 1;
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
pr->bcnt = 2;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
p1[1] = '\0';
|
|
|
|
badcnt(p1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'e': case 'E': case 'f': case 'g': case 'G':
|
|
|
|
pr->flags = F_DBL;
|
|
|
|
switch(fu->bcnt) {
|
|
|
|
case 0: case 8:
|
|
|
|
pr->bcnt = 8;
|
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
pr->bcnt = 4;
|
|
|
|
break;
|
|
|
|
default:
|
2002-05-17 07:14:55 +00:00
|
|
|
if (fu->bcnt == sizeof(long double)) {
|
|
|
|
cs[2] = '\0';
|
|
|
|
cs[1] = cs[0];
|
|
|
|
cs[0] = 'L';
|
|
|
|
pr->bcnt = sizeof(long double);
|
|
|
|
} else {
|
|
|
|
p1[1] = '\0';
|
|
|
|
badcnt(p1);
|
|
|
|
}
|
1994-05-27 12:33:43 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 's':
|
|
|
|
pr->flags = F_STR;
|
|
|
|
switch(sokay) {
|
|
|
|
case NOTOKAY:
|
|
|
|
badsfmt();
|
|
|
|
case USEBCNT:
|
|
|
|
pr->bcnt = fu->bcnt;
|
|
|
|
break;
|
|
|
|
case USEPREC:
|
|
|
|
pr->bcnt = prec;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case '_':
|
|
|
|
++p2;
|
|
|
|
switch(p1[1]) {
|
|
|
|
case 'A':
|
|
|
|
endfu = fu;
|
|
|
|
fu->flags |= F_IGNORE;
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
case 'a':
|
|
|
|
pr->flags = F_ADDRESS;
|
|
|
|
++p2;
|
|
|
|
switch(p1[2]) {
|
|
|
|
case 'd': case 'o': case'x':
|
|
|
|
cs[0] = 'q';
|
|
|
|
cs[1] = p1[2];
|
|
|
|
cs[2] = '\0';
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
p1[3] = '\0';
|
|
|
|
badconv(p1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'c':
|
|
|
|
pr->flags = F_C;
|
|
|
|
/* cs[0] = 'c'; set in conv_c */
|
|
|
|
goto isint2;
|
|
|
|
case 'p':
|
|
|
|
pr->flags = F_P;
|
|
|
|
cs[0] = 'c';
|
|
|
|
goto isint2;
|
|
|
|
case 'u':
|
|
|
|
pr->flags = F_U;
|
|
|
|
/* cs[0] = 'c'; set in conv_u */
|
|
|
|
isint2: switch(fu->bcnt) {
|
|
|
|
case 0: case 1:
|
|
|
|
pr->bcnt = 1;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
p1[2] = '\0';
|
|
|
|
badcnt(p1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
p1[2] = '\0';
|
|
|
|
badconv(p1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
p1[1] = '\0';
|
|
|
|
badconv(p1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Copy to PR format string, set conversion character
|
|
|
|
* pointer, update original.
|
|
|
|
*/
|
|
|
|
savech = *p2;
|
|
|
|
p1[0] = '\0';
|
2006-08-09 19:12:10 +00:00
|
|
|
len = strlen(fmtp) + strlen(cs) + 1;
|
|
|
|
if ((pr->fmt = calloc(1, len)) == NULL)
|
2001-07-24 14:11:09 +00:00
|
|
|
err(1, NULL);
|
2006-08-09 19:12:10 +00:00
|
|
|
snprintf(pr->fmt, len, "%s%s", fmtp, cs);
|
1994-05-27 12:33:43 +00:00
|
|
|
*p2 = savech;
|
|
|
|
pr->cchar = pr->fmt + (p1 - fmtp);
|
|
|
|
fmtp = p2;
|
|
|
|
|
|
|
|
/* Only one conversion character if byte count. */
|
|
|
|
if (!(pr->flags&F_ADDRESS) && fu->bcnt && nconv++)
|
1997-07-10 06:48:24 +00:00
|
|
|
errx(1, "byte count with multiple conversion characters");
|
1994-05-27 12:33:43 +00:00
|
|
|
}
|
|
|
|
/*
|
|
|
|
* If format unit byte count not specified, figure it out
|
|
|
|
* so can adjust rep count later.
|
|
|
|
*/
|
|
|
|
if (!fu->bcnt)
|
|
|
|
for (pr = fu->nextpr; pr; pr = pr->nextpr)
|
|
|
|
fu->bcnt += pr->bcnt;
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
* If the format string interprets any data at all, and it's
|
|
|
|
* not the same as the blocksize, and its last format unit
|
|
|
|
* interprets any data at all, and has no iteration count,
|
|
|
|
* repeat it as necessary.
|
|
|
|
*
|
|
|
|
* If, rep count is greater than 1, no trailing whitespace
|
|
|
|
* gets output from the last iteration of the format unit.
|
|
|
|
*/
|
2002-05-27 03:17:28 +00:00
|
|
|
for (fu = fs->nextfu; fu; fu = fu->nextfu) {
|
1994-05-27 12:33:43 +00:00
|
|
|
if (!fu->nextfu && fs->bcnt < blocksize &&
|
|
|
|
!(fu->flags&F_SETREP) && fu->bcnt)
|
|
|
|
fu->reps += (blocksize - fs->bcnt) / fu->bcnt;
|
|
|
|
if (fu->reps > 1) {
|
|
|
|
for (pr = fu->nextpr;; pr = pr->nextpr)
|
|
|
|
if (!pr->nextpr)
|
|
|
|
break;
|
|
|
|
for (p1 = pr->fmt, p2 = NULL; *p1; ++p1)
|
|
|
|
p2 = isspace(*p1) ? p1 : NULL;
|
|
|
|
if (p2)
|
|
|
|
pr->nospace = p2;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
|
|
for (fu = fs->nextfu; fu; fu = fu->nextfu) {
|
|
|
|
(void)printf("fmt:");
|
|
|
|
for (pr = fu->nextpr; pr; pr = pr->nextpr)
|
|
|
|
(void)printf(" {%s}", pr->fmt);
|
|
|
|
(void)printf("\n");
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2002-09-04 23:29:10 +00:00
|
|
|
escape(char *p1)
|
1994-05-27 12:33:43 +00:00
|
|
|
{
|
2002-09-04 23:29:10 +00:00
|
|
|
char *p2;
|
1994-05-27 12:33:43 +00:00
|
|
|
|
|
|
|
/* alphabetic escape sequences have to be done in place */
|
|
|
|
for (p2 = p1;; ++p1, ++p2) {
|
|
|
|
if (!*p1) {
|
|
|
|
*p2 = *p1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (*p1 == '\\')
|
|
|
|
switch(*++p1) {
|
|
|
|
case 'a':
|
|
|
|
/* *p2 = '\a'; */
|
|
|
|
*p2 = '\007';
|
|
|
|
break;
|
|
|
|
case 'b':
|
|
|
|
*p2 = '\b';
|
|
|
|
break;
|
|
|
|
case 'f':
|
|
|
|
*p2 = '\f';
|
|
|
|
break;
|
|
|
|
case 'n':
|
|
|
|
*p2 = '\n';
|
|
|
|
break;
|
|
|
|
case 'r':
|
|
|
|
*p2 = '\r';
|
|
|
|
break;
|
|
|
|
case 't':
|
|
|
|
*p2 = '\t';
|
|
|
|
break;
|
|
|
|
case 'v':
|
|
|
|
*p2 = '\v';
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
*p2 = *p1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2002-09-04 23:29:10 +00:00
|
|
|
badcnt(char *s)
|
1994-05-27 12:33:43 +00:00
|
|
|
{
|
1997-07-10 06:48:24 +00:00
|
|
|
errx(1, "%s: bad byte count", s);
|
1994-05-27 12:33:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2002-09-04 23:29:10 +00:00
|
|
|
badsfmt(void)
|
1994-05-27 12:33:43 +00:00
|
|
|
{
|
1997-07-10 06:48:24 +00:00
|
|
|
errx(1, "%%s: requires a precision or a byte count");
|
1994-05-27 12:33:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2002-09-04 23:29:10 +00:00
|
|
|
badfmt(const char *fmt)
|
1994-05-27 12:33:43 +00:00
|
|
|
{
|
1997-07-10 06:48:24 +00:00
|
|
|
errx(1, "\"%s\": bad format", fmt);
|
1994-05-27 12:33:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2002-09-04 23:29:10 +00:00
|
|
|
badconv(char *ch)
|
1994-05-27 12:33:43 +00:00
|
|
|
{
|
1997-07-10 06:48:24 +00:00
|
|
|
errx(1, "%%%s: bad conversion character", ch);
|
1994-05-27 12:33:43 +00:00
|
|
|
}
|