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) |
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505 | signvalue = ' '; |
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506 | } |
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507 | if (flags & DP_F_NUM) { |
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508 | if (base == 8) prefix = "0"; |
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509 | if (base == 16) prefix = "0x"; |
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510 | } |
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511 | if (flags & DP_F_UP) |
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512 | caps = 1; |
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513 | do { |
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514 | convert[place++] = |
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515 | (caps ? "0123456789ABCDEF" : "0123456789abcdef") |
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516 | [uvalue % (unsigned) base]; |
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517 | uvalue = (uvalue / (unsigned) base); |
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518 | } while (uvalue && (place < (int)sizeof(convert))); |
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519 | if (place == sizeof(convert)) |
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520 | place--; |
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521 | convert[place] = 0; |
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522 | |
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523 | zpadlen = max - place; |
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524 | spadlen = min - OSSL_MAX(max, place) - (signvalue ? 1 : 0) - strlen(prefix); |
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525 | if (zpadlen < 0) |
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526 | zpadlen = 0; |
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527 | if (spadlen < 0) |
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528 | spadlen = 0; |
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529 | if (flags & DP_F_ZERO) { |
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530 | zpadlen = OSSL_MAX(zpadlen, spadlen); |
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531 | spadlen = 0; |
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532 | } |
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533 | if (flags & DP_F_MINUS) |
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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 | } |
---|