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6099 | serge | 1 | /* |
2 | * Copyright (c) 1990 The Regents of the University of California. |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms are permitted |
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6 | * provided that the above copyright notice and this paragraph are |
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7 | * duplicated in all such forms and that any documentation, |
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8 | * advertising materials, and other materials related to such |
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9 | * distribution and use acknowledge that the software was developed |
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10 | * by the University of California, Berkeley. The name of the |
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11 | * University may not be used to endorse or promote products derived |
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12 | * from this software without specific prior written permission. |
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13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
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14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
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15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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16 | */ |
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17 | |||
18 | /* |
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19 | FUNCTION |
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20 | < |
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21 | |||
22 | INDEX |
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23 | iscanf |
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24 | INDEX |
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25 | _iscanf_r |
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26 | INDEX |
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27 | fiscanf |
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28 | INDEX |
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29 | _fiscanf_r |
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30 | INDEX |
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31 | siscanf |
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32 | INDEX |
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33 | _siscanf_r |
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34 | |||
35 | ANSI_SYNOPSIS |
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36 | #include |
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37 | |||
38 | int iscanf(const char *<[format]>, ...); |
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39 | int fiscanf(FILE *<[fd]>, const char *<[format]>, ...); |
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40 | int siscanf(const char *<[str]>, const char *<[format]>, ...); |
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41 | |||
42 | int _iscanf_r(struct _reent *<[ptr]>, const char *<[format]>, ...); |
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43 | int _fiscanf_r(struct _reent *<[ptr]>, FILE *<[fd]>, |
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44 | const char *<[format]>, ...); |
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45 | int _siscanf_r(struct _reent *<[ptr]>, const char *<[str]>, |
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46 | const char *<[format]>, ...); |
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47 | |||
48 | |||
49 | TRAD_SYNOPSIS |
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50 | #include |
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51 | |||
52 | int iscanf(<[format]> [, <[arg]>, ...]) |
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53 | char *<[format]>; |
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54 | |||
55 | int fiscanf(<[fd]>, <[format]> [, <[arg]>, ...]); |
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56 | FILE *<[fd]>; |
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57 | char *<[format]>; |
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58 | |||
59 | int siscanf(<[str]>, <[format]> [, <[arg]>, ...]); |
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60 | char *<[str]>; |
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61 | char *<[format]>; |
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62 | |||
63 | int _iscanf_r(<[ptr]>, <[format]> [, <[arg]>, ...]) |
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64 | struct _reent *<[ptr]>; |
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65 | char *<[format]>; |
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66 | |||
67 | int _fiscanf_r(<[ptr]>, <[fd]>, <[format]> [, <[arg]>, ...]); |
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68 | struct _reent *<[ptr]>; |
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69 | FILE *<[fd]>; |
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70 | char *<[format]>; |
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71 | |||
72 | int _siscanf_r(<[ptr]>, <[str]>, <[format]> [, <[arg]>, ...]); |
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73 | struct _reent *<[ptr]>; |
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74 | char *<[str]>; |
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75 | char *<[format]>; |
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76 | |||
77 | |||
78 | DESCRIPTION |
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79 | < |
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80 | < |
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81 | they restrict the available formats to non-floating-point |
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82 | format specifiers. |
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83 | |||
84 | The routines <<_iscanf_r>>, <<_fiscanf_r>>, and <<_siscanf_r>> are reentrant |
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85 | versions of < |
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86 | first argument pointing to a reentrancy structure. |
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87 | |||
88 | RETURNS |
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89 | < |
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90 | scanned, converted and stored; the return value does |
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91 | not include scanned fields which were not stored. |
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92 | |||
93 | If < |
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94 | value is < |
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95 | |||
96 | If no fields were stored, the return value is <<0>>. |
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97 | |||
98 | PORTABILITY |
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99 | < |
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100 | |||
101 | Supporting OS subroutines required: < |
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102 | < |
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103 | */ |
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104 | |||
105 | #include <_ansi.h> |
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106 | #include |
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107 | #include |
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108 | #include |
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109 | #ifdef _HAVE_STDC |
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110 | #include |
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111 | #else |
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112 | #include |
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113 | #endif |
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114 | #include "local.h" |
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115 | |||
116 | #ifndef _REENT_ONLY |
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117 | |||
118 | #ifdef _HAVE_STDC |
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119 | int |
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120 | _DEFUN(siscanf, (str, fmt), |
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121 | _CONST char *str _AND |
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122 | _CONST char *fmt _DOTS) |
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123 | #else |
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124 | int |
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125 | siscanf(str, fmt, va_alist) |
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126 | _CONST char *str; |
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127 | _CONST char *fmt; |
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128 | va_dcl |
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129 | #endif |
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130 | { |
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131 | int ret; |
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132 | va_list ap; |
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133 | FILE f; |
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134 | |||
135 | f._flags = __SRD | __SSTR; |
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136 | f._bf._base = f._p = (unsigned char *) str; |
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137 | f._bf._size = f._r = strlen (str); |
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138 | f._read = __seofread; |
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139 | f._ub._base = NULL; |
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140 | f._lb._base = NULL; |
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141 | f._file = -1; /* No file. */ |
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142 | #ifdef _HAVE_STDC |
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143 | va_start (ap, fmt); |
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144 | #else |
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145 | va_start (ap); |
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146 | #endif |
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147 | ret = __ssvfiscanf_r (_REENT, &f, fmt, ap); |
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148 | va_end (ap); |
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149 | return ret; |
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150 | } |
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151 | |||
152 | #endif /* !_REENT_ONLY */ |
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153 | |||
154 | #ifdef _HAVE_STDC |
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155 | int |
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156 | _DEFUN(_siscanf_r, (ptr, str, fmt), |
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157 | struct _reent *ptr _AND |
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158 | _CONST char *str _AND |
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159 | _CONST char *fmt _DOTS) |
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160 | #else |
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161 | int |
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162 | _siscanf_r(ptr, str, fmt, va_alist) |
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163 | struct _reent *ptr; |
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164 | _CONST char *str; |
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165 | _CONST char *fmt; |
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166 | va_dcl |
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167 | #endif |
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168 | { |
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169 | int ret; |
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170 | va_list ap; |
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171 | FILE f; |
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172 | |||
173 | f._flags = __SRD | __SSTR; |
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174 | f._bf._base = f._p = (unsigned char *) str; |
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175 | f._bf._size = f._r = strlen (str); |
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176 | f._read = __seofread; |
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177 | f._ub._base = NULL; |
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178 | f._lb._base = NULL; |
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179 | f._file = -1; /* No file. */ |
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180 | #ifdef _HAVE_STDC |
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181 | va_start (ap, fmt); |
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182 | #else |
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183 | va_start (ap); |
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184 | #endif |
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185 | ret = __ssvfiscanf_r (ptr, &f, fmt, ap); |
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186 | va_end (ap); |
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187 | return ret; |
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188 | } |