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 #ifndef USE_ALLOCATING_PRINT
165 static int dopr_isbig (size_t, size_t);
166 static int dopr_copy (size_t);
167 static void dopr_outch (char **, size_t *, size_t *, int);
169 static int doapr_isbig (size_t, size_t);
170 static int doapr_copy (size_t);
171 static void doapr_outch (char **, size_t *, size_t *, int);
173 static void _dopr(void (*)(char **, size_t *, size_t *, int),
174 int (*)(size_t, size_t), int (*)(size_t),
175 char **buffer, size_t *maxlen, size_t *retlen,
176 const char *format, va_list args);
178 /* format read states */
179 #define DP_S_DEFAULT 0
188 /* format flags - Bits */
189 #define DP_F_MINUS (1 << 0)
190 #define DP_F_PLUS (1 << 1)
191 #define DP_F_SPACE (1 << 2)
192 #define DP_F_NUM (1 << 3)
193 #define DP_F_ZERO (1 << 4)
194 #define DP_F_UP (1 << 5)
195 #define DP_F_UNSIGNED (1 << 6)
197 /* conversion flags */
200 #define DP_C_LDOUBLE 3
203 /* some handy macros */
204 #define char_to_int(p) (p - '0')
205 #define MAX(p,q) ((p >= q) ? p : q)
207 #ifndef USE_ALLOCATING_PRINT
216 _dopr(dopr_outch, dopr_isbig, dopr_copy,
217 &buffer, &maxlen, retlen, format, args);
228 size_t dummy_maxlen = 0;
229 _dopr(doapr_outch, doapr_isbig, doapr_copy,
230 buffer, &dummy_maxlen, retlen, format, args);
236 void (*outch_fn)(char **, size_t *, size_t *, int),
237 int (*isbig_fn)(size_t, size_t),
238 int (*copy_fn)(size_t),
256 state = DP_S_DEFAULT;
257 flags = currlen = cflags = min = 0;
261 while (state != DP_S_DONE) {
262 if ((ch == '\0') || (*isbig_fn)(currlen, *maxlen))
270 (*outch_fn)(buffer, &currlen, maxlen, ch);
301 if (isdigit((unsigned char)ch)) {
302 min = 10 * min + char_to_int(ch);
304 } else if (ch == '*') {
305 min = va_arg(args, int);
319 if (isdigit((unsigned char)ch)) {
322 max = 10 * max + char_to_int(ch);
324 } else if (ch == '*') {
325 max = va_arg(args, int);
338 if (*format == 'l') {
350 cflags = DP_C_LDOUBLE;
364 value = (short int)va_arg(args, int);
367 value = va_arg(args, long int);
370 value = va_arg(args, LLONG);
373 value = va_arg(args, int);
376 fmtint(outch_fn, buffer, &currlen, maxlen,
377 value, 10, min, max, flags);
385 flags |= DP_F_UNSIGNED;
388 value = (unsigned short int)va_arg(args, unsigned int);
391 value = (LLONG) va_arg(args,
395 value = va_arg(args, unsigned LLONG);
398 value = (LLONG) va_arg(args,
402 fmtint(outch_fn, buffer, &currlen, maxlen, value,
403 ch == 'o' ? 8 : (ch == 'u' ? 10 : 16),
407 if (cflags == DP_C_LDOUBLE)
408 fvalue = va_arg(args, LDOUBLE);
410 fvalue = va_arg(args, double);
411 fmtfp(outch_fn, buffer, &currlen, maxlen,
412 fvalue, min, max, flags);
417 if (cflags == DP_C_LDOUBLE)
418 fvalue = va_arg(args, LDOUBLE);
420 fvalue = va_arg(args, double);
425 if (cflags == DP_C_LDOUBLE)
426 fvalue = va_arg(args, LDOUBLE);
428 fvalue = va_arg(args, double);
431 (*outch_fn)(buffer, &currlen, maxlen,
435 strvalue = va_arg(args, char *);
437 max = (*copy_fn)(*maxlen);
438 fmtstr(outch_fn, buffer, &currlen, maxlen, strvalue,
442 value = (long)va_arg(args, void *);
443 fmtint(outch_fn, buffer, &currlen, maxlen,
444 value, 16, min, max, flags);
447 if (cflags == DP_C_SHORT) {
449 num = va_arg(args, short int *);
451 } else if (cflags == DP_C_LONG) { /* XXX */
453 num = va_arg(args, long int *);
454 *num = (long int) currlen;
455 } else if (cflags == DP_C_LLONG) { /* XXX */
457 num = va_arg(args, LLONG *);
458 *num = (LLONG) currlen;
461 num = va_arg(args, int *);
466 (*outch_fn)(buffer, &currlen, maxlen, ch);
469 /* not supported yet, treat as next char */
477 state = DP_S_DEFAULT;
478 flags = cflags = min = 0;
487 if (currlen >= *maxlen - 1)
488 currlen = *maxlen - 1;
489 (*buffer)[currlen] = '\0';
496 void (*outch_fn)(char **, size_t *, size_t *, int),
510 for (strln = 0; value[strln]; ++strln)
512 padlen = min - strln;
515 if (flags & DP_F_MINUS)
518 while ((padlen > 0) && (cnt < max)) {
519 (*outch_fn)(buffer, currlen, maxlen, ' ');
523 while (*value && (cnt < max)) {
524 (*outch_fn)(buffer, currlen, maxlen, *value++);
527 while ((padlen < 0) && (cnt < max)) {
528 (*outch_fn)(buffer, currlen, maxlen, ' ');
536 void (*outch_fn)(char **, size_t *, size_t *, int),
547 unsigned LLONG uvalue;
557 if (!(flags & DP_F_UNSIGNED)) {
561 } else if (flags & DP_F_PLUS)
563 else if (flags & DP_F_SPACE)
570 (caps ? "0123456789ABCDEF" : "0123456789abcdef")
571 [uvalue % (unsigned) base];
572 uvalue = (uvalue / (unsigned) base);
573 } while (uvalue && (place < 20));
578 zpadlen = max - place;
579 spadlen = min - MAX(max, place) - (signvalue ? 1 : 0);
584 if (flags & DP_F_ZERO) {
585 zpadlen = MAX(zpadlen, spadlen);
588 if (flags & DP_F_MINUS)
592 while (spadlen > 0) {
593 (*outch_fn)(buffer, currlen, maxlen, ' ');
599 (*outch_fn)(buffer, currlen, maxlen, signvalue);
603 while (zpadlen > 0) {
604 (*outch_fn)(buffer, currlen, maxlen, '0');
610 (*outch_fn)(buffer, currlen, maxlen, convert[--place]);
612 /* left justified spaces */
613 while (spadlen < 0) {
614 (*outch_fn)(buffer, currlen, maxlen, ' ');
621 abs_val(LDOUBLE value)
623 LDOUBLE result = value;
644 intpart = (long) value;
645 value = value - intpart;
653 void (*outch_fn)(char **, size_t *, size_t *, int),
676 ufvalue = abs_val(fvalue);
679 else if (flags & DP_F_PLUS)
681 else if (flags & DP_F_SPACE)
684 intpart = (long)ufvalue;
686 /* sorry, we only support 9 digits past the decimal because of our
691 /* we "cheat" by converting the fractional part to integer by
692 multiplying by a factor of 10 */
693 fracpart = round((pow10(max)) * (ufvalue - intpart));
695 if (fracpart >= pow10(max)) {
697 fracpart -= (long)pow10(max);
700 /* convert integer part */
703 (caps ? "0123456789ABCDEF"
704 : "0123456789abcdef")[intpart % 10];
705 intpart = (intpart / 10);
706 } while (intpart && (iplace < 20));
709 iconvert[iplace] = 0;
711 /* convert fractional part */
714 (caps ? "0123456789ABCDEF"
715 : "0123456789abcdef")[fracpart % 10];
716 fracpart = (fracpart / 10);
717 } while (fracpart && (fplace < 20));
720 fconvert[fplace] = 0;
722 /* -1 for decimal point, another -1 if we are printing a sign */
723 padlen = min - iplace - max - 1 - ((signvalue) ? 1 : 0);
724 zpadlen = max - fplace;
729 if (flags & DP_F_MINUS)
732 if ((flags & DP_F_ZERO) && (padlen > 0)) {
734 (*outch_fn)(buffer, currlen, maxlen, signvalue);
739 (*outch_fn)(buffer, currlen, maxlen, '0');
744 (*outch_fn)(buffer, currlen, maxlen, ' ');
748 (*outch_fn)(buffer, currlen, maxlen, signvalue);
751 (*outch_fn)(buffer, currlen, maxlen, iconvert[--iplace]);
754 * Decimal point. This should probably use locale to find the correct
758 (*outch_fn)(buffer, currlen, maxlen, '.');
761 (*outch_fn)(buffer, currlen, maxlen, fconvert[--fplace]);
763 while (zpadlen > 0) {
764 (*outch_fn)(buffer, currlen, maxlen, '0');
769 (*outch_fn)(buffer, currlen, maxlen, ' ');
781 #ifdef USE_ALLOCATING_PRINT
786 /* Return as high an integer as possible */
796 return currlen > maxlen;
799 #ifdef USE_ALLOCATING_PRINT
816 if (*currlen < *maxlen)
817 (*buffer)[(*currlen)++] = (char)c;
821 #ifdef USE_ALLOCATING_PRINT
829 if (*buffer == NULL) {
832 *buffer = Malloc(*maxlen);
834 while (*currlen >= *maxlen) {
836 *buffer = Realloc(*buffer, *maxlen);
838 /* What to do if *buffer is NULL? */
839 assert(*buffer != NULL);
841 (*buffer)[(*currlen)++] = (char)c;