1 /* crypto/bio/b_print.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
60 * Stolen from tjh's ssl/ssl_trc.c stuff.
70 #ifndef NO_SYS_TYPES_H
71 #include <sys/types.h>
73 #include <openssl/bio.h>
76 # ifndef HAVE_LONG_LONG
77 # define HAVE_LONG_LONG 1
81 static void dopr (char *buffer, size_t maxlen, size_t *retlen,
82 const char *format, va_list args);
83 #ifdef USE_ALLOCATING_PRINT
84 static void doapr (char **buffer, size_t *retlen,
85 const char *format, va_list args);
88 int BIO_printf (BIO *bio, ...)
94 #ifdef USE_ALLOCATING_PRINT
97 MS_STATIC char hugebuf[1024*2]; /* 10k in one chunk is the limit */
101 format=va_arg(args, char *);
103 #ifndef USE_ALLOCATING_PRINT
105 dopr(hugebuf, sizeof(hugebuf), &retlen, format, args);
108 CRYPTO_push_info("doapr()");
109 doapr(&hugebuf, &retlen, format, args);
113 ret=BIO_write(bio, hugebuf, (int)retlen);
115 #ifdef USE_ALLOCATING_PRINT
125 * Copyright Patrick Powell 1995
126 * This code is based on code written by Patrick Powell <papowell@astart.com>
127 * It may be used for any purpose as long as this notice remains intact
128 * on all source code distributions.
132 * This code contains numerious changes and enhancements which were
133 * made by lots of contributors over the last years to Patrick Powell's
136 * o Patrick Powell <papowell@astart.com> (1995)
137 * o Brandon Long <blong@fiction.net> (1996, for Mutt)
138 * o Thomas Roessler <roessler@guug.de> (1998, for Mutt)
139 * o Michael Elkins <me@cs.hmc.edu> (1998, for Mutt)
140 * o Andrew Tridgell <tridge@samba.org> (1998, for Samba)
141 * o Luke Mewburn <lukem@netbsd.org> (1999, for LukemFTP)
142 * o Ralf S. Engelschall <rse@engelschall.com> (1999, for Pth)
146 #define LDOUBLE long double
148 #define LDOUBLE double
152 #define LLONG long long
157 static void fmtstr (void (*)(char **, size_t *, size_t *, int),
158 char **, size_t *, size_t *, const char *, int, int,
160 static void fmtint (void (*)(char **, size_t *, size_t *, int),
161 char **, size_t *, size_t *, LLONG, int, int, int, int);
162 static void fmtfp (void (*)(char **, size_t *, size_t *, int),
163 char **, size_t *, size_t *, LDOUBLE, int, int, int);
164 static int dopr_isbig (size_t, size_t);
165 static int dopr_copy (size_t);
166 static void dopr_outch (char **, size_t *, size_t *, int);
167 #ifdef USE_ALLOCATING_PRINT
168 static int doapr_isbig (size_t, size_t);
169 static int doapr_copy (size_t);
170 static void doapr_outch (char **, size_t *, size_t *, int);
172 static void _dopr(void (*)(char **, size_t *, size_t *, int),
173 int (*)(size_t, size_t), int (*)(size_t),
174 char **buffer, size_t *maxlen, size_t *retlen,
175 const char *format, va_list args);
177 /* format read states */
178 #define DP_S_DEFAULT 0
187 /* format flags - Bits */
188 #define DP_F_MINUS (1 << 0)
189 #define DP_F_PLUS (1 << 1)
190 #define DP_F_SPACE (1 << 2)
191 #define DP_F_NUM (1 << 3)
192 #define DP_F_ZERO (1 << 4)
193 #define DP_F_UP (1 << 5)
194 #define DP_F_UNSIGNED (1 << 6)
196 /* conversion flags */
199 #define DP_C_LDOUBLE 3
202 /* some handy macros */
203 #define char_to_int(p) (p - '0')
204 #define MAX(p,q) ((p >= q) ? p : q)
214 _dopr(dopr_outch, dopr_isbig, dopr_copy,
215 &buffer, &maxlen, retlen, format, args);
218 #ifdef USE_ALLOCATING_PRINT
226 size_t dummy_maxlen = 0;
227 _dopr(doapr_outch, doapr_isbig, doapr_copy,
228 buffer, &dummy_maxlen, retlen, format, args);
234 void (*outch_fn)(char **, size_t *, size_t *, int),
235 int (*isbig_fn)(size_t, size_t),
236 int (*copy_fn)(size_t),
254 state = DP_S_DEFAULT;
255 flags = currlen = cflags = min = 0;
259 while (state != DP_S_DONE) {
260 if ((ch == '\0') || (*isbig_fn)(currlen, *maxlen))
268 (*outch_fn)(buffer, &currlen, maxlen, ch);
299 if (isdigit((unsigned char)ch)) {
300 min = 10 * min + char_to_int(ch);
302 } else if (ch == '*') {
303 min = va_arg(args, int);
317 if (isdigit((unsigned char)ch)) {
320 max = 10 * max + char_to_int(ch);
322 } else if (ch == '*') {
323 max = va_arg(args, int);
336 if (*format == 'l') {
348 cflags = DP_C_LDOUBLE;
362 value = (short int)va_arg(args, int);
365 value = va_arg(args, long int);
368 value = va_arg(args, LLONG);
371 value = va_arg(args, int);
374 fmtint(outch_fn, buffer, &currlen, maxlen,
375 value, 10, min, max, flags);
383 flags |= DP_F_UNSIGNED;
386 value = (unsigned short int)va_arg(args, unsigned int);
389 value = (LLONG) va_arg(args,
393 value = va_arg(args, unsigned LLONG);
396 value = (LLONG) va_arg(args,
400 fmtint(outch_fn, buffer, &currlen, maxlen, value,
401 ch == 'o' ? 8 : (ch == 'u' ? 10 : 16),
405 if (cflags == DP_C_LDOUBLE)
406 fvalue = va_arg(args, LDOUBLE);
408 fvalue = va_arg(args, double);
409 fmtfp(outch_fn, buffer, &currlen, maxlen,
410 fvalue, min, max, flags);
415 if (cflags == DP_C_LDOUBLE)
416 fvalue = va_arg(args, LDOUBLE);
418 fvalue = va_arg(args, double);
423 if (cflags == DP_C_LDOUBLE)
424 fvalue = va_arg(args, LDOUBLE);
426 fvalue = va_arg(args, double);
429 (*outch_fn)(buffer, &currlen, maxlen,
433 strvalue = va_arg(args, char *);
435 max = (*copy_fn)(*maxlen);
436 fmtstr(outch_fn, buffer, &currlen, maxlen, strvalue,
440 value = (long)va_arg(args, void *);
441 fmtint(outch_fn, buffer, &currlen, maxlen,
442 value, 16, min, max, flags);
445 if (cflags == DP_C_SHORT) {
447 num = va_arg(args, short int *);
449 } else if (cflags == DP_C_LONG) { /* XXX */
451 num = va_arg(args, long int *);
452 *num = (long int) currlen;
453 } else if (cflags == DP_C_LLONG) { /* XXX */
455 num = va_arg(args, LLONG *);
456 *num = (LLONG) currlen;
459 num = va_arg(args, int *);
464 (*outch_fn)(buffer, &currlen, maxlen, ch);
467 /* not supported yet, treat as next char */
475 state = DP_S_DEFAULT;
476 flags = cflags = min = 0;
485 if (currlen >= *maxlen - 1)
486 currlen = *maxlen - 1;
487 (*buffer)[currlen] = '\0';
494 void (*outch_fn)(char **, size_t *, size_t *, int),
508 for (strln = 0; value[strln]; ++strln)
510 padlen = min - strln;
513 if (flags & DP_F_MINUS)
516 while ((padlen > 0) && (cnt < max)) {
517 (*outch_fn)(buffer, currlen, maxlen, ' ');
521 while (*value && (cnt < max)) {
522 (*outch_fn)(buffer, currlen, maxlen, *value++);
525 while ((padlen < 0) && (cnt < max)) {
526 (*outch_fn)(buffer, currlen, maxlen, ' ');
534 void (*outch_fn)(char **, size_t *, size_t *, int),
545 unsigned LLONG uvalue;
555 if (!(flags & DP_F_UNSIGNED)) {
559 } else if (flags & DP_F_PLUS)
561 else if (flags & DP_F_SPACE)
568 (caps ? "0123456789ABCDEF" : "0123456789abcdef")
569 [uvalue % (unsigned) base];
570 uvalue = (uvalue / (unsigned) base);
571 } while (uvalue && (place < 20));
576 zpadlen = max - place;
577 spadlen = min - MAX(max, place) - (signvalue ? 1 : 0);
582 if (flags & DP_F_ZERO) {
583 zpadlen = MAX(zpadlen, spadlen);
586 if (flags & DP_F_MINUS)
590 while (spadlen > 0) {
591 (*outch_fn)(buffer, currlen, maxlen, ' ');
597 (*outch_fn)(buffer, currlen, maxlen, signvalue);
601 while (zpadlen > 0) {
602 (*outch_fn)(buffer, currlen, maxlen, '0');
608 (*outch_fn)(buffer, currlen, maxlen, convert[--place]);
610 /* left justified spaces */
611 while (spadlen < 0) {
612 (*outch_fn)(buffer, currlen, maxlen, ' ');
619 abs_val(LDOUBLE value)
621 LDOUBLE result = value;
642 intpart = (long) value;
643 value = value - intpart;
651 void (*outch_fn)(char **, size_t *, size_t *, int),
674 ufvalue = abs_val(fvalue);
677 else if (flags & DP_F_PLUS)
679 else if (flags & DP_F_SPACE)
682 intpart = (long)ufvalue;
684 /* sorry, we only support 9 digits past the decimal because of our
689 /* we "cheat" by converting the fractional part to integer by
690 multiplying by a factor of 10 */
691 fracpart = round((pow10(max)) * (ufvalue - intpart));
693 if (fracpart >= pow10(max)) {
695 fracpart -= (long)pow10(max);
698 /* convert integer part */
701 (caps ? "0123456789ABCDEF"
702 : "0123456789abcdef")[intpart % 10];
703 intpart = (intpart / 10);
704 } while (intpart && (iplace < 20));
707 iconvert[iplace] = 0;
709 /* convert fractional part */
712 (caps ? "0123456789ABCDEF"
713 : "0123456789abcdef")[fracpart % 10];
714 fracpart = (fracpart / 10);
715 } while (fracpart && (fplace < 20));
718 fconvert[fplace] = 0;
720 /* -1 for decimal point, another -1 if we are printing a sign */
721 padlen = min - iplace - max - 1 - ((signvalue) ? 1 : 0);
722 zpadlen = max - fplace;
727 if (flags & DP_F_MINUS)
730 if ((flags & DP_F_ZERO) && (padlen > 0)) {
732 (*outch_fn)(buffer, currlen, maxlen, signvalue);
737 (*outch_fn)(buffer, currlen, maxlen, '0');
742 (*outch_fn)(buffer, currlen, maxlen, ' ');
746 (*outch_fn)(buffer, currlen, maxlen, signvalue);
749 (*outch_fn)(buffer, currlen, maxlen, iconvert[--iplace]);
752 * Decimal point. This should probably use locale to find the correct
756 (*outch_fn)(buffer, currlen, maxlen, '.');
759 (*outch_fn)(buffer, currlen, maxlen, fconvert[--fplace]);
761 while (zpadlen > 0) {
762 (*outch_fn)(buffer, currlen, maxlen, '0');
767 (*outch_fn)(buffer, currlen, maxlen, ' ');
779 #ifdef USE_ALLOCATING_PRINT
784 /* Return as high an integer as possible */
794 return currlen > maxlen;
797 #ifdef USE_ALLOCATING_PRINT
814 if (*currlen < *maxlen)
815 (*buffer)[(*currlen)++] = (char)c;
819 #ifdef USE_ALLOCATING_PRINT
827 if (*buffer == NULL) {
830 *buffer = Malloc(*maxlen);
832 while (*currlen >= *maxlen) {
834 *buffer = Realloc(*buffer, *maxlen);
836 /* What to do if *buffer is NULL? */
837 assert(*buffer != NULL);
839 (*buffer)[(*currlen)++] = (char)c;