[1] | 1 | /* crypto/bio/b_print.c */ |
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| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * This package is an SSL implementation written |
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| 6 | * by Eric Young (eay@cryptsoft.com). |
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| 7 | * The implementation was written so as to conform with Netscapes SSL. |
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| 8 | * |
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| 9 | * This library is free for commercial and non-commercial use as long as |
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| 10 | * the following conditions are aheared to. The following conditions |
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| 11 | * apply to all code found in this distribution, be it the RC4, RSA, |
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| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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| 13 | * included with this distribution is covered by the same copyright terms |
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| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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| 15 | * |
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| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
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| 17 | * the code are not to be removed. |
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| 18 | * If this package is used in a product, Eric Young should be given attribution |
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| 19 | * as the author of the parts of the library used. |
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| 20 | * This can be in the form of a textual message at program startup or |
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| 21 | * in documentation (online or textual) provided with the package. |
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| 22 | * |
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| 23 | * Redistribution and use in source and binary forms, with or without |
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| 24 | * modification, are permitted provided that the following conditions |
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| 25 | * are met: |
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| 26 | * 1. Redistributions of source code must retain the copyright |
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| 27 | * notice, this list of conditions and the following disclaimer. |
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| 28 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 29 | * notice, this list of conditions and the following disclaimer in the |
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| 30 | * documentation and/or other materials provided with the distribution. |
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| 31 | * 3. All advertising materials mentioning features or use of this software |
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| 32 | * must display the following acknowledgement: |
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| 33 | * "This product includes cryptographic software written by |
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| 34 | * Eric Young (eay@cryptsoft.com)" |
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| 35 | * The word 'cryptographic' can be left out if the rouines from the library |
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| 36 | * being used are not cryptographic related :-). |
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| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
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| 38 | * the apps directory (application code) you must include an acknowledgement: |
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| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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| 40 | * |
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| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 51 | * SUCH DAMAGE. |
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| 52 | * |
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| 53 | * The licence and distribution terms for any publically available version or |
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| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be |
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| 55 | * copied and put under another distribution licence |
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| 56 | * [including the GNU Public Licence.] |
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| 57 | */ |
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| 58 | |
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| 59 | /* disable assert() unless BIO_DEBUG has been defined */ |
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| 60 | #ifndef BIO_DEBUG |
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| 61 | # ifndef NDEBUG |
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| 62 | # define NDEBUG |
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| 63 | # endif |
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| 64 | #endif |
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| 65 | |
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| 66 | /* |
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| 67 | * Stolen from tjh's ssl/ssl_trc.c stuff. |
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| 68 | */ |
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| 69 | |
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| 70 | #include <stdio.h> |
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| 71 | #include <string.h> |
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| 72 | #include <ctype.h> |
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| 73 | #include <assert.h> |
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| 74 | #include <limits.h> |
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| 75 | #include <openssl/cryptlib.h> |
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| 76 | #ifndef NO_SYS_TYPES_H |
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| 77 | #include <sys/types.h> |
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| 78 | #endif |
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| 79 | //#include "bn.h" /* To get BN_LLONG properly defined */ |
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| 80 | #include <openssl/bio.h> |
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| 81 | |
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| 82 | #define BN_LONG long |
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| 83 | |
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| 84 | #if defined(BN_LLONG) || defined(SIXTY_FOUR_BIT) |
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| 85 | # ifndef HAVE_LONG_LONG |
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| 86 | # define HAVE_LONG_LONG 1 |
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| 87 | # endif |
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| 88 | #endif |
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| 89 | |
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| 90 | /***************************************************************************/ |
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| 91 | |
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| 92 | /* |
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| 93 | * Copyright Patrick Powell 1995 |
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| 94 | * This code is based on code written by Patrick Powell <papowell@astart.com> |
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| 95 | * It may be used for any purpose as long as this notice remains intact |
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| 96 | * on all source code distributions. |
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| 97 | */ |
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| 98 | |
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| 99 | /* |
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| 100 | * This code contains numerious changes and enhancements which were |
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| 101 | * made by lots of contributors over the last years to Patrick Powell's |
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| 102 | * original code: |
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| 103 | * |
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| 104 | * o Patrick Powell <papowell@astart.com> (1995) |
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| 105 | * o Brandon Long <blong@fiction.net> (1996, for Mutt) |
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| 106 | * o Thomas Roessler <roessler@guug.de> (1998, for Mutt) |
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| 107 | * o Michael Elkins <me@cs.hmc.edu> (1998, for Mutt) |
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| 108 | * o Andrew Tridgell <tridge@samba.org> (1998, for Samba) |
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| 109 | * o Luke Mewburn <lukem@netbsd.org> (1999, for LukemFTP) |
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| 110 | * o Ralf S. Engelschall <rse@engelschall.com> (1999, for Pth) |
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| 111 | * o ... (for OpenSSL) |
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| 112 | */ |
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| 113 | |
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| 114 | #ifdef HAVE_LONG_DOUBLE |
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| 115 | #define LDOUBLE long double |
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| 116 | #else |
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| 117 | #define LDOUBLE double |
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| 118 | #endif |
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| 119 | |
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| 120 | #if HAVE_LONG_LONG |
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| 121 | # if defined(OPENSSL_SYS_WIN32) && !defined(__GNUC__) |
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| 122 | # define LLONG __int64 |
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| 123 | # else |
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| 124 | # define LLONG long long |
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| 125 | # endif |
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| 126 | #else |
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| 127 | #define LLONG long |
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| 128 | #endif |
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| 129 | |
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| 130 | static void fmtstr (char **, char **, size_t *, size_t *, |
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| 131 | const char *, int, int, int); |
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| 132 | static void fmtint (char **, char **, size_t *, size_t *, |
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| 133 | LLONG, int, int, int, int); |
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| 134 | static void fmtfp (char **, char **, size_t *, size_t *, |
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| 135 | LDOUBLE, int, int, int); |
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| 136 | static void doapr_outch (char **, char **, size_t *, size_t *, int); |
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| 137 | static void _dopr(char **sbuffer, char **buffer, |
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| 138 | size_t *maxlen, size_t *retlen, int *truncated, |
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| 139 | const char *format, va_list args); |
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| 140 | |
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| 141 | /* format read states */ |
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| 142 | #define DP_S_DEFAULT 0 |
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| 143 | #define DP_S_FLAGS 1 |
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| 144 | #define DP_S_MIN 2 |
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| 145 | #define DP_S_DOT 3 |
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| 146 | #define DP_S_MAX 4 |
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| 147 | #define DP_S_MOD 5 |
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| 148 | #define DP_S_CONV 6 |
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| 149 | #define DP_S_DONE 7 |
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| 150 | |
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| 151 | /* format flags - Bits */ |
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| 152 | #define DP_F_MINUS (1 << 0) |
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| 153 | #define DP_F_PLUS (1 << 1) |
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| 154 | #define DP_F_SPACE (1 << 2) |
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| 155 | #define DP_F_NUM (1 << 3) |
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| 156 | #define DP_F_ZERO (1 << 4) |
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| 157 | #define DP_F_UP (1 << 5) |
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| 158 | #define DP_F_UNSIGNED (1 << 6) |
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| 159 | |
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| 160 | /* conversion flags */ |
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| 161 | #define DP_C_SHORT 1 |
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| 162 | #define DP_C_LONG 2 |
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| 163 | #define DP_C_LDOUBLE 3 |
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| 164 | #define DP_C_LLONG 4 |
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| 165 | |
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| 166 | /* some handy macros */ |
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| 167 | #define char_to_int(p) (p - '0') |
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| 168 | #define OSSL_MAX(p,q) ((p >= q) ? p : q) |
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| 169 | |
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| 170 | static void |
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| 171 | _dopr( |
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| 172 | char **sbuffer, |
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| 173 | char **buffer, |
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| 174 | size_t *maxlen, |
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| 175 | size_t *retlen, |
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| 176 | int *truncated, |
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| 177 | const char *format, |
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| 178 | va_list args) |
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| 179 | { |
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| 180 | char ch; |
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| 181 | LLONG value; |
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| 182 | LDOUBLE fvalue; |
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| 183 | char *strvalue; |
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| 184 | int min; |
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| 185 | int max; |
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| 186 | int state; |
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| 187 | int flags; |
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| 188 | int cflags; |
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| 189 | size_t currlen; |
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| 190 | |
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| 191 | state = DP_S_DEFAULT; |
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| 192 | flags = currlen = cflags = min = 0; |
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| 193 | max = -1; |
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| 194 | ch = *format++; |
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| 195 | |
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| 196 | while (state != DP_S_DONE) { |
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| 197 | if (ch == '\0' || (buffer == NULL && currlen >= *maxlen)) |
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| 198 | state = DP_S_DONE; |
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| 199 | |
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| 200 | switch (state) { |
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| 201 | case DP_S_DEFAULT: |
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| 202 | if (ch == '%') |
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| 203 | state = DP_S_FLAGS; |
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| 204 | else |
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| 205 | doapr_outch(sbuffer,buffer, &currlen, maxlen, ch); |
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| 206 | ch = *format++; |
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| 207 | break; |
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| 208 | case DP_S_FLAGS: |
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| 209 | switch (ch) { |
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| 210 | case '-': |
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| 211 | flags |= DP_F_MINUS; |
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| 212 | ch = *format++; |
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| 213 | break; |
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| 214 | case '+': |
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| 215 | flags |= DP_F_PLUS; |
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| 216 | ch = *format++; |
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| 217 | break; |
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| 218 | case ' ': |
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| 219 | flags |= DP_F_SPACE; |
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| 220 | ch = *format++; |
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| 221 | break; |
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| 222 | case '#': |
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| 223 | flags |= DP_F_NUM; |
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| 224 | ch = *format++; |
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| 225 | break; |
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| 226 | case '0': |
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| 227 | flags |= DP_F_ZERO; |
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| 228 | ch = *format++; |
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| 229 | break; |
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| 230 | default: |
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| 231 | state = DP_S_MIN; |
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| 232 | break; |
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| 233 | } |
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| 234 | break; |
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| 235 | case DP_S_MIN: |
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| 236 | if (isdigit((unsigned char)ch)) { |
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| 237 | min = 10 * min + char_to_int(ch); |
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| 238 | ch = *format++; |
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| 239 | } else if (ch == '*') { |
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| 240 | min = va_arg(args, int); |
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| 241 | ch = *format++; |
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| 242 | state = DP_S_DOT; |
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| 243 | } else |
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| 244 | state = DP_S_DOT; |
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| 245 | break; |
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| 246 | case DP_S_DOT: |
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| 247 | if (ch == '.') { |
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| 248 | state = DP_S_MAX; |
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| 249 | ch = *format++; |
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| 250 | } else |
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| 251 | state = DP_S_MOD; |
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| 252 | break; |
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| 253 | case DP_S_MAX: |
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| 254 | if (isdigit((unsigned char)ch)) { |
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| 255 | if (max < 0) |
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| 256 | max = 0; |
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| 257 | max = 10 * max + char_to_int(ch); |
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| 258 | ch = *format++; |
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| 259 | } else if (ch == '*') { |
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| 260 | max = va_arg(args, int); |
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| 261 | ch = *format++; |
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| 262 | state = DP_S_MOD; |
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| 263 | } else |
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| 264 | state = DP_S_MOD; |
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| 265 | break; |
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| 266 | case DP_S_MOD: |
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| 267 | switch (ch) { |
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| 268 | case 'h': |
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| 269 | cflags = DP_C_SHORT; |
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| 270 | ch = *format++; |
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| 271 | break; |
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| 272 | case 'l': |
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| 273 | if (*format == 'l') { |
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| 274 | cflags = DP_C_LLONG; |
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| 275 | format++; |
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| 276 | } else |
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| 277 | cflags = DP_C_LONG; |
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| 278 | ch = *format++; |
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| 279 | break; |
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| 280 | case 'q': |
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| 281 | cflags = DP_C_LLONG; |
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| 282 | ch = *format++; |
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| 283 | break; |
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| 284 | case 'L': |
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| 285 | cflags = DP_C_LDOUBLE; |
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| 286 | ch = *format++; |
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| 287 | break; |
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| 288 | default: |
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| 289 | break; |
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| 290 | } |
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| 291 | state = DP_S_CONV; |
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| 292 | break; |
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| 293 | case DP_S_CONV: |
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| 294 | switch (ch) { |
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| 295 | case 'd': |
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| 296 | case 'i': |
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| 297 | switch (cflags) { |
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| 298 | case DP_C_SHORT: |
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| 299 | value = (short int)va_arg(args, int); |
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| 300 | break; |
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| 301 | case DP_C_LONG: |
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| 302 | value = va_arg(args, long int); |
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| 303 | break; |
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| 304 | case DP_C_LLONG: |
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| 305 | value = va_arg(args, LLONG); |
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| 306 | break; |
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| 307 | default: |
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| 308 | value = va_arg(args, int); |
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| 309 | break; |
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| 310 | } |
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| 311 | fmtint(sbuffer, buffer, &currlen, maxlen, |
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| 312 | value, 10, min, max, flags); |
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| 313 | break; |
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| 314 | case 'X': |
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| 315 | flags |= DP_F_UP; |
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| 316 | /* FALLTHROUGH */ |
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| 317 | case 'x': |
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| 318 | case 'o': |
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| 319 | case 'u': |
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| 320 | flags |= DP_F_UNSIGNED; |
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| 321 | switch (cflags) { |
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| 322 | case DP_C_SHORT: |
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| 323 | value = (unsigned short int)va_arg(args, unsigned int); |
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| 324 | break; |
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| 325 | case DP_C_LONG: |
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| 326 | value = (LLONG) va_arg(args, |
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| 327 | unsigned long int); |
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| 328 | break; |
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| 329 | case DP_C_LLONG: |
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| 330 | value = va_arg(args, unsigned LLONG); |
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| 331 | break; |
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| 332 | default: |
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| 333 | value = (LLONG) va_arg(args, |
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| 334 | unsigned int); |
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| 335 | break; |
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| 336 | } |
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| 337 | fmtint(sbuffer, buffer, &currlen, maxlen, value, |
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| 338 | ch == 'o' ? 8 : (ch == 'u' ? 10 : 16), |
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| 339 | min, max, flags); |
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| 340 | break; |
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| 341 | case 'f': |
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| 342 | if (cflags == DP_C_LDOUBLE) |
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| 343 | fvalue = va_arg(args, LDOUBLE); |
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| 344 | else |
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| 345 | fvalue = va_arg(args, double); |
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| 346 | fmtfp(sbuffer, buffer, &currlen, maxlen, |
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| 347 | fvalue, min, max, flags); |
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| 348 | break; |
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| 349 | case 'E': |
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| 350 | flags |= DP_F_UP; |
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| 351 | case 'e': |
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| 352 | if (cflags == DP_C_LDOUBLE) |
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| 353 | fvalue = va_arg(args, LDOUBLE); |
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| 354 | else |
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| 355 | fvalue = va_arg(args, double); |
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| 356 | break; |
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| 357 | case 'G': |
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| 358 | flags |= DP_F_UP; |
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| 359 | case 'g': |
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| 360 | if (cflags == DP_C_LDOUBLE) |
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| 361 | fvalue = va_arg(args, LDOUBLE); |
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| 362 | else |
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| 363 | fvalue = va_arg(args, double); |
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| 364 | break; |
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| 365 | case 'c': |
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| 366 | doapr_outch(sbuffer, buffer, &currlen, maxlen, |
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| 367 | va_arg(args, int)); |
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| 368 | break; |
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| 369 | case 's': |
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| 370 | strvalue = va_arg(args, char *); |
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| 371 | if (max < 0) { |
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| 372 | if (buffer) |
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| 373 | max = INT_MAX; |
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| 374 | else |
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| 375 | max = *maxlen; |
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| 376 | } |
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| 377 | fmtstr(sbuffer, buffer, &currlen, maxlen, strvalue, |
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| 378 | flags, min, max); |
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| 379 | break; |
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| 380 | case 'p': |
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| 381 | value = (long)va_arg(args, void *); |
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| 382 | fmtint(sbuffer, buffer, &currlen, maxlen, |
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| 383 | value, 16, min, max, flags|DP_F_NUM); |
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| 384 | break; |
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| 385 | case 'n': /* XXX */ |
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| 386 | if (cflags == DP_C_SHORT) { |
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| 387 | short int *num; |
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| 388 | num = va_arg(args, short int *); |
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| 389 | *num = currlen; |
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| 390 | } else if (cflags == DP_C_LONG) { /* XXX */ |
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| 391 | long int *num; |
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| 392 | num = va_arg(args, long int *); |
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| 393 | *num = (long int) currlen; |
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| 394 | } else if (cflags == DP_C_LLONG) { /* XXX */ |
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| 395 | LLONG *num; |
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| 396 | num = va_arg(args, LLONG *); |
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| 397 | *num = (LLONG) currlen; |
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| 398 | } else { |
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| 399 | int *num; |
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| 400 | num = va_arg(args, int *); |
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| 401 | *num = currlen; |
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| 402 | } |
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| 403 | break; |
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| 404 | case '%': |
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| 405 | doapr_outch(sbuffer, buffer, &currlen, maxlen, ch); |
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| 406 | break; |
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| 407 | case 'w': |
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| 408 | /* not supported yet, treat as next char */ |
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| 409 | ch = *format++; |
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| 410 | break; |
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| 411 | default: |
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| 412 | /* unknown, skip */ |
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| 413 | break; |
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| 414 | } |
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| 415 | ch = *format++; |
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| 416 | state = DP_S_DEFAULT; |
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| 417 | flags = cflags = min = 0; |
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| 418 | max = -1; |
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| 419 | break; |
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| 420 | case DP_S_DONE: |
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| 421 | break; |
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| 422 | default: |
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| 423 | break; |
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| 424 | } |
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| 425 | } |
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| 426 | *truncated = (currlen > *maxlen - 1); |
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| 427 | if (*truncated) |
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| 428 | currlen = *maxlen - 1; |
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| 429 | doapr_outch(sbuffer, buffer, &currlen, maxlen, '\0'); |
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| 430 | *retlen = currlen - 1; |
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| 431 | return; |
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| 432 | } |
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| 433 | |
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| 434 | static void |
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| 435 | fmtstr( |
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| 436 | char **sbuffer, |
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| 437 | char **buffer, |
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| 438 | size_t *currlen, |
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| 439 | size_t *maxlen, |
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| 440 | const char *value, |
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| 441 | int flags, |
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| 442 | int min, |
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| 443 | int max) |
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| 444 | { |
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| 445 | int padlen, strln; |
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| 446 | int cnt = 0; |
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| 447 | |
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| 448 | if (value == 0) |
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| 449 | value = "<NULL>"; |
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| 450 | for (strln = 0; value[strln]; ++strln) |
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| 451 | ; |
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| 452 | padlen = min - strln; |
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| 453 | if (padlen < 0) |
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| 454 | padlen = 0; |
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| 455 | if (flags & DP_F_MINUS) |
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| 456 | padlen = -padlen; |
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| 457 | |
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| 458 | while ((padlen > 0) && (cnt < max)) { |
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| 459 | doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); |
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| 460 | --padlen; |
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| 461 | ++cnt; |
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| 462 | } |
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| 463 | while (*value && (cnt < max)) { |
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| 464 | doapr_outch(sbuffer, buffer, currlen, maxlen, *value++); |
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| 465 | ++cnt; |
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| 466 | } |
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| 467 | while ((padlen < 0) && (cnt < max)) { |
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| 468 | doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); |
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| 469 | ++padlen; |
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| 470 | ++cnt; |
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| 471 | } |
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| 472 | } |
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| 473 | |
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| 474 | static void |
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| 475 | fmtint( |
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| 476 | char **sbuffer, |
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| 477 | char **buffer, |
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| 478 | size_t *currlen, |
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| 479 | size_t *maxlen, |
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| 480 | LLONG value, |
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| 481 | int base, |
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| 482 | int min, |
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| 483 | int max, |
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| 484 | int flags) |
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| 485 | { |
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| 486 | int signvalue = 0; |
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| 487 | const char *prefix = ""; |
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| 488 | unsigned LLONG uvalue; |
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| 489 | char convert[DECIMAL_SIZE(value)+3]; |
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| 490 | int place = 0; |
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| 491 | int spadlen = 0; |
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| 492 | int zpadlen = 0; |
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| 493 | int caps = 0; |
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| 494 | |
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| 495 | if (max < 0) |
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| 496 | max = 0; |
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| 497 | uvalue = value; |
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| 498 | if (!(flags & DP_F_UNSIGNED)) { |
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| 499 | if (value < 0) { |
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| 500 | signvalue = '-'; |
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| 501 | uvalue = -value; |
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| 502 | } else if (flags & DP_F_PLUS) |
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| 503 | signvalue = '+'; |
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| 504 | else if (flags & DP_F_SPACE) |
---|
| 505 | signvalue = ' '; |
---|
| 506 | } |
---|
| 507 | if (flags & DP_F_NUM) { |
---|
| 508 | if (base == 8) prefix = "0"; |
---|
| 509 | if (base == 16) prefix = "0x"; |
---|
| 510 | } |
---|
| 511 | if (flags & DP_F_UP) |
---|
| 512 | caps = 1; |
---|
| 513 | do { |
---|
| 514 | convert[place++] = |
---|
| 515 | (caps ? "0123456789ABCDEF" : "0123456789abcdef") |
---|
| 516 | [uvalue % (unsigned) base]; |
---|
| 517 | uvalue = (uvalue / (unsigned) base); |
---|
| 518 | } while (uvalue && (place < (int)sizeof(convert))); |
---|
| 519 | if (place == sizeof(convert)) |
---|
| 520 | place--; |
---|
| 521 | convert[place] = 0; |
---|
| 522 | |
---|
| 523 | zpadlen = max - place; |
---|
| 524 | spadlen = min - OSSL_MAX(max, place) - (signvalue ? 1 : 0) - strlen(prefix); |
---|
| 525 | if (zpadlen < 0) |
---|
| 526 | zpadlen = 0; |
---|
| 527 | if (spadlen < 0) |
---|
| 528 | spadlen = 0; |
---|
| 529 | if (flags & DP_F_ZERO) { |
---|
| 530 | zpadlen = OSSL_MAX(zpadlen, spadlen); |
---|
| 531 | spadlen = 0; |
---|
| 532 | } |
---|
| 533 | if (flags & DP_F_MINUS) |
---|
| 534 | spadlen = -spadlen; |
---|
| 535 | |
---|
| 536 | /* spaces */ |
---|
| 537 | while (spadlen > 0) { |
---|
| 538 | doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); |
---|
| 539 | --spadlen; |
---|
| 540 | } |
---|
| 541 | |
---|
| 542 | /* sign */ |
---|
| 543 | if (signvalue) |
---|
| 544 | doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue); |
---|
| 545 | |
---|
| 546 | /* prefix */ |
---|
| 547 | while (*prefix) { |
---|
| 548 | doapr_outch(sbuffer, buffer, currlen, maxlen, *prefix); |
---|
| 549 | prefix++; |
---|
| 550 | } |
---|
| 551 | |
---|
| 552 | /* zeros */ |
---|
| 553 | if (zpadlen > 0) { |
---|
| 554 | while (zpadlen > 0) { |
---|
| 555 | doapr_outch(sbuffer, buffer, currlen, maxlen, '0'); |
---|
| 556 | --zpadlen; |
---|
| 557 | } |
---|
| 558 | } |
---|
| 559 | /* digits */ |
---|
| 560 | while (place > 0) |
---|
| 561 | doapr_outch(sbuffer, buffer, currlen, maxlen, convert[--place]); |
---|
| 562 | |
---|
| 563 | /* left justified spaces */ |
---|
| 564 | while (spadlen < 0) { |
---|
| 565 | doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); |
---|
| 566 | ++spadlen; |
---|
| 567 | } |
---|
| 568 | return; |
---|
| 569 | } |
---|
| 570 | |
---|
| 571 | static LDOUBLE |
---|
| 572 | abs_val(LDOUBLE value) |
---|
| 573 | { |
---|
| 574 | LDOUBLE result = value; |
---|
| 575 | if (value < 0) |
---|
| 576 | result = -value; |
---|
| 577 | return result; |
---|
| 578 | } |
---|
| 579 | |
---|
| 580 | static LDOUBLE |
---|
| 581 | pow_10(int in_exp) |
---|
| 582 | { |
---|
| 583 | LDOUBLE result = 1; |
---|
| 584 | while (in_exp) { |
---|
| 585 | result *= 10; |
---|
| 586 | in_exp--; |
---|
| 587 | } |
---|
| 588 | return result; |
---|
| 589 | } |
---|
| 590 | |
---|
| 591 | static long |
---|
| 592 | roundv(LDOUBLE value) |
---|
| 593 | { |
---|
| 594 | long intpart; |
---|
| 595 | intpart = (long) value; |
---|
| 596 | value = value - intpart; |
---|
| 597 | if (value >= 0.5) |
---|
| 598 | intpart++; |
---|
| 599 | return intpart; |
---|
| 600 | } |
---|
| 601 | |
---|
| 602 | static void |
---|
| 603 | fmtfp( |
---|
| 604 | char **sbuffer, |
---|
| 605 | char **buffer, |
---|
| 606 | size_t *currlen, |
---|
| 607 | size_t *maxlen, |
---|
| 608 | LDOUBLE fvalue, |
---|
| 609 | int min, |
---|
| 610 | int max, |
---|
| 611 | int flags) |
---|
| 612 | { |
---|
| 613 | int signvalue = 0; |
---|
| 614 | LDOUBLE ufvalue; |
---|
| 615 | char iconvert[20]; |
---|
| 616 | char fconvert[20]; |
---|
| 617 | int iplace = 0; |
---|
| 618 | int fplace = 0; |
---|
| 619 | int padlen = 0; |
---|
| 620 | int zpadlen = 0; |
---|
| 621 | int caps = 0; |
---|
| 622 | long intpart; |
---|
| 623 | long fracpart; |
---|
| 624 | long max10; |
---|
| 625 | |
---|
| 626 | if (max < 0) |
---|
| 627 | max = 6; |
---|
| 628 | ufvalue = abs_val(fvalue); |
---|
| 629 | if (fvalue < 0) |
---|
| 630 | signvalue = '-'; |
---|
| 631 | else if (flags & DP_F_PLUS) |
---|
| 632 | signvalue = '+'; |
---|
| 633 | else if (flags & DP_F_SPACE) |
---|
| 634 | signvalue = ' '; |
---|
| 635 | |
---|
| 636 | intpart = (long)ufvalue; |
---|
| 637 | |
---|
| 638 | /* sorry, we only support 9 digits past the decimal because of our |
---|
| 639 | conversion method */ |
---|
| 640 | if (max > 9) |
---|
| 641 | max = 9; |
---|
| 642 | |
---|
| 643 | /* we "cheat" by converting the fractional part to integer by |
---|
| 644 | multiplying by a factor of 10 */ |
---|
| 645 | max10 = roundv(pow_10(max)); |
---|
| 646 | fracpart = roundv(pow_10(max) * (ufvalue - intpart)); |
---|
| 647 | |
---|
| 648 | if (fracpart >= max10) { |
---|
| 649 | intpart++; |
---|
| 650 | fracpart -= max10; |
---|
| 651 | } |
---|
| 652 | |
---|
| 653 | /* convert integer part */ |
---|
| 654 | do { |
---|
| 655 | iconvert[iplace++] = |
---|
| 656 | (caps ? "0123456789ABCDEF" |
---|
| 657 | : "0123456789abcdef")[intpart % 10]; |
---|
| 658 | intpart = (intpart / 10); |
---|
| 659 | } while (intpart && (iplace < (int)sizeof(iconvert))); |
---|
| 660 | if (iplace == sizeof iconvert) |
---|
| 661 | iplace--; |
---|
| 662 | iconvert[iplace] = 0; |
---|
| 663 | |
---|
| 664 | /* convert fractional part */ |
---|
| 665 | do { |
---|
| 666 | fconvert[fplace++] = |
---|
| 667 | (caps ? "0123456789ABCDEF" |
---|
| 668 | : "0123456789abcdef")[fracpart % 10]; |
---|
| 669 | fracpart = (fracpart / 10); |
---|
| 670 | } while (fplace < max); |
---|
| 671 | if (fplace == sizeof fconvert) |
---|
| 672 | fplace--; |
---|
| 673 | fconvert[fplace] = 0; |
---|
| 674 | |
---|
| 675 | /* -1 for decimal point, another -1 if we are printing a sign */ |
---|
| 676 | padlen = min - iplace - max - 1 - ((signvalue) ? 1 : 0); |
---|
| 677 | zpadlen = max - fplace; |
---|
| 678 | if (zpadlen < 0) |
---|
| 679 | zpadlen = 0; |
---|
| 680 | if (padlen < 0) |
---|
| 681 | padlen = 0; |
---|
| 682 | if (flags & DP_F_MINUS) |
---|
| 683 | padlen = -padlen; |
---|
| 684 | |
---|
| 685 | if ((flags & DP_F_ZERO) && (padlen > 0)) { |
---|
| 686 | if (signvalue) { |
---|
| 687 | doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue); |
---|
| 688 | --padlen; |
---|
| 689 | signvalue = 0; |
---|
| 690 | } |
---|
| 691 | while (padlen > 0) { |
---|
| 692 | doapr_outch(sbuffer, buffer, currlen, maxlen, '0'); |
---|
| 693 | --padlen; |
---|
| 694 | } |
---|
| 695 | } |
---|
| 696 | while (padlen > 0) { |
---|
| 697 | doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); |
---|
| 698 | --padlen; |
---|
| 699 | } |
---|
| 700 | if (signvalue) |
---|
| 701 | doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue); |
---|
| 702 | |
---|
| 703 | while (iplace > 0) |
---|
| 704 | doapr_outch(sbuffer, buffer, currlen, maxlen, iconvert[--iplace]); |
---|
| 705 | |
---|
| 706 | /* |
---|
| 707 | * Decimal point. This should probably use locale to find the correct |
---|
| 708 | * char to print out. |
---|
| 709 | */ |
---|
| 710 | if (max > 0 || (flags & DP_F_NUM)) { |
---|
| 711 | doapr_outch(sbuffer, buffer, currlen, maxlen, '.'); |
---|
| 712 | |
---|
| 713 | while (fplace > 0) |
---|
| 714 | doapr_outch(sbuffer, buffer, currlen, maxlen, fconvert[--fplace]); |
---|
| 715 | } |
---|
| 716 | while (zpadlen > 0) { |
---|
| 717 | doapr_outch(sbuffer, buffer, currlen, maxlen, '0'); |
---|
| 718 | --zpadlen; |
---|
| 719 | } |
---|
| 720 | |
---|
| 721 | while (padlen < 0) { |
---|
| 722 | doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); |
---|
| 723 | ++padlen; |
---|
| 724 | } |
---|
| 725 | } |
---|
| 726 | |
---|
| 727 | static void |
---|
| 728 | doapr_outch( |
---|
| 729 | char **sbuffer, |
---|
| 730 | char **buffer, |
---|
| 731 | size_t *currlen, |
---|
| 732 | size_t *maxlen, |
---|
| 733 | int c) |
---|
| 734 | { |
---|
| 735 | /* If we haven't at least one buffer, someone has doe a big booboo */ |
---|
| 736 | assert(*sbuffer != NULL || buffer != NULL); |
---|
| 737 | |
---|
| 738 | if (buffer) { |
---|
| 739 | while (*currlen >= *maxlen) { |
---|
| 740 | if (*buffer == NULL) { |
---|
| 741 | if (*maxlen == 0) |
---|
| 742 | *maxlen = 1024; |
---|
| 743 | *buffer = OPENSSL_malloc(*maxlen); |
---|
| 744 | if (*currlen > 0) { |
---|
| 745 | assert(*sbuffer != NULL); |
---|
| 746 | memcpy(*buffer, *sbuffer, *currlen); |
---|
| 747 | } |
---|
| 748 | *sbuffer = NULL; |
---|
| 749 | } else { |
---|
| 750 | *maxlen += 1024; |
---|
| 751 | *buffer = OPENSSL_realloc(*buffer, *maxlen); |
---|
| 752 | } |
---|
| 753 | } |
---|
| 754 | /* What to do if *buffer is NULL? */ |
---|
| 755 | assert(*sbuffer != NULL || *buffer != NULL); |
---|
| 756 | } |
---|
| 757 | |
---|
| 758 | if (*currlen < *maxlen) { |
---|
| 759 | if (*sbuffer) |
---|
| 760 | (*sbuffer)[(*currlen)++] = (char)c; |
---|
| 761 | else |
---|
| 762 | (*buffer)[(*currlen)++] = (char)c; |
---|
| 763 | } |
---|
| 764 | |
---|
| 765 | return; |
---|
| 766 | } |
---|
| 767 | |
---|
| 768 | /***************************************************************************/ |
---|
| 769 | |
---|
| 770 | int BIO_printf (BIO *bio, const char *format, ...) |
---|
| 771 | { |
---|
| 772 | va_list args; |
---|
| 773 | int ret; |
---|
| 774 | |
---|
| 775 | va_start(args, format); |
---|
| 776 | |
---|
| 777 | ret = BIO_vprintf(bio, format, args); |
---|
| 778 | |
---|
| 779 | va_end(args); |
---|
| 780 | return(ret); |
---|
| 781 | } |
---|
| 782 | |
---|
| 783 | int BIO_vprintf (BIO *bio, const char *format, va_list args) |
---|
| 784 | { |
---|
| 785 | int ret; |
---|
| 786 | size_t retlen; |
---|
| 787 | char hugebuf[1024*2]; /* Was previously 10k, which is unreasonable |
---|
| 788 | in small-stack environments, like threads |
---|
| 789 | or DOS programs. */ |
---|
| 790 | char *hugebufp = hugebuf; |
---|
| 791 | size_t hugebufsize = sizeof(hugebuf); |
---|
| 792 | char *dynbuf = NULL; |
---|
| 793 | int ignored; |
---|
| 794 | |
---|
| 795 | dynbuf = NULL; |
---|
| 796 | CRYPTO_push_info("doapr()"); |
---|
| 797 | _dopr(&hugebufp, &dynbuf, &hugebufsize, |
---|
| 798 | &retlen, &ignored, format, args); |
---|
| 799 | if (dynbuf) |
---|
| 800 | { |
---|
| 801 | ret=BIO_write(bio, dynbuf, (int)retlen); |
---|
| 802 | OPENSSL_free(dynbuf); |
---|
| 803 | } |
---|
| 804 | else |
---|
| 805 | { |
---|
| 806 | ret=BIO_write(bio, hugebuf, (int)retlen); |
---|
| 807 | } |
---|
| 808 | CRYPTO_pop_info(); |
---|
| 809 | return(ret); |
---|
| 810 | } |
---|
| 811 | |
---|
| 812 | /* As snprintf is not available everywhere, we provide our own implementation. |
---|
| 813 | * This function has nothing to do with BIOs, but it's closely related |
---|
| 814 | * to BIO_printf, and we need *some* name prefix ... |
---|
| 815 | * (XXX the function should be renamed, but to what?) */ |
---|
| 816 | int BIO_snprintf(char *buf, size_t n, const char *format, ...) |
---|
| 817 | { |
---|
| 818 | va_list args; |
---|
| 819 | int ret; |
---|
| 820 | |
---|
| 821 | va_start(args, format); |
---|
| 822 | |
---|
| 823 | ret = BIO_vsnprintf(buf, n, format, args); |
---|
| 824 | |
---|
| 825 | va_end(args); |
---|
| 826 | return(ret); |
---|
| 827 | } |
---|
| 828 | |
---|
| 829 | int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args) |
---|
| 830 | { |
---|
| 831 | size_t retlen; |
---|
| 832 | int truncated; |
---|
| 833 | |
---|
| 834 | _dopr(&buf, NULL, &n, &retlen, &truncated, format, args); |
---|
| 835 | |
---|
| 836 | if (truncated) |
---|
| 837 | /* In case of truncation, return -1 like traditional snprintf. |
---|
| 838 | * (Current drafts for ISO/IEC 9899 say snprintf should return |
---|
| 839 | * the number of characters that would have been written, |
---|
| 840 | * had the buffer been large enough.) */ |
---|
| 841 | return -1; |
---|
| 842 | else |
---|
| 843 | return (retlen <= INT_MAX) ? (int)retlen : -1; |
---|
| 844 | } |
---|