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1 | jermar | 1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
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1196 | cejka | 3 | * Copyright (C) 2006 Josef Cejka |
1 | jermar | 4 | * All rights reserved. |
5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions |
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8 | * are met: |
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9 | * |
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10 | * - Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * - Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * - The name of the author may not be used to endorse or promote products |
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16 | * derived from this software without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |||
30 | #include <putchar.h> |
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31 | #include <print.h> |
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32 | #include <synch/spinlock.h> |
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40 | jermar | 33 | #include <arch/arg.h> |
115 | jermar | 34 | #include <arch/asm.h> |
228 | cejka | 35 | |
195 | vana | 36 | #include <arch.h> |
1 | jermar | 37 | |
1204 | jermar | 38 | SPINLOCK_INITIALIZE(printflock); /**< printf spinlock */ |
1 | jermar | 39 | |
1204 | jermar | 40 | #define __PRINTF_FLAG_PREFIX 0x00000001 /* show prefixes 0x or 0 */ |
1196 | cejka | 41 | #define __PRINTF_FLAG_SIGNED 0x00000002 /* signed / unsigned number */ |
42 | #define __PRINTF_FLAG_ZEROPADDED 0x00000004 /* print leading zeroes */ |
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43 | #define __PRINTF_FLAG_LEFTALIGNED 0x00000010 /* align to left */ |
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44 | #define __PRINTF_FLAG_SHOWPLUS 0x00000020 /* always show + sign */ |
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45 | #define __PRINTF_FLAG_SPACESIGN 0x00000040 /* print space instead of plus */ |
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46 | #define __PRINTF_FLAG_BIGCHARS 0x00000080 /* show big characters */ |
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47 | #define __PRINTF_FLAG_NEGATIVE 0x00000100 /* number has - sign */ |
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61 | decky | 48 | |
1196 | cejka | 49 | #define PRINT_NUMBER_BUFFER_SIZE (64+5) /* Buffer big enought for 64 bit number |
50 | * printed in base 2, sign, prefix and |
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51 | * 0 to terminate string.. (last one is only for better testing |
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52 | * end of buffer by zero-filling subroutine) |
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53 | */ |
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54 | typedef enum { |
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55 | PrintfQualifierByte = 0, |
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56 | PrintfQualifierShort, |
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57 | PrintfQualifierInt, |
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58 | PrintfQualifierLong, |
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59 | PrintfQualifierLongLong, |
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60 | PrintfQualifierNative, |
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61 | PrintfQualifierPointer |
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62 | } qualifier_t; |
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63 | |||
64 | static char digits_small[] = "0123456789abcdef"; /* Small hexadecimal characters */ |
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1204 | jermar | 65 | static char digits_big[] = "0123456789ABCDEF"; /* Big hexadecimal characters */ |
1196 | cejka | 66 | |
67 | static inline int isdigit(int c) |
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228 | cejka | 68 | { |
1196 | cejka | 69 | return ((c >= '0' )&&( c <= '9')); |
70 | } |
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1069 | cejka | 71 | |
1196 | cejka | 72 | static __native strlen(const char *str) |
73 | { |
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74 | __native counter = 0; |
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75 | |||
76 | while (str[counter] != 0) { |
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77 | counter++; |
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78 | } |
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79 | |||
80 | return counter; |
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81 | } |
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82 | |||
1229 | jermar | 83 | /** Print one string without appending '\n' to the end. |
1204 | jermar | 84 | * |
1229 | jermar | 85 | * Do not use this function directly - printflock is not locked here. |
1204 | jermar | 86 | * |
87 | */ |
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1196 | cejka | 88 | static int putstr(const char *str) |
89 | { |
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90 | int count; |
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1069 | cejka | 91 | if (str == NULL) { |
1196 | cejka | 92 | str = "(NULL)"; |
93 | } |
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452 | decky | 94 | |
1196 | cejka | 95 | for (count = 0; str[count] != 0; count++) { |
96 | putchar(str[count]); |
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97 | } |
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98 | return count; |
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452 | decky | 99 | } |
100 | |||
1229 | jermar | 101 | /** Print count characters from buffer to output. |
452 | decky | 102 | * |
1229 | jermar | 103 | * @param buffer Address of the buffer with charaters to be printed. |
104 | * @param count Number of characters to be printed. |
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105 | * |
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106 | * @return Number of characters printed. |
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452 | decky | 107 | */ |
1196 | cejka | 108 | static int putnchars(const char *buffer, __native count) |
452 | decky | 109 | { |
110 | int i; |
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1196 | cejka | 111 | if (buffer == NULL) { |
112 | buffer = "(NULL)"; |
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113 | count = 6; |
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114 | } |
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115 | |||
116 | for (i = 0; i < count; i++) { |
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117 | putchar(buffer[i]); |
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118 | } |
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119 | |||
120 | return count; |
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452 | decky | 121 | } |
122 | |||
1196 | cejka | 123 | /** Print one formatted character |
1204 | jermar | 124 | * |
1229 | jermar | 125 | * @param c Character to print. |
1196 | cejka | 126 | * @param width |
127 | * @param flags |
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1229 | jermar | 128 | * @return Number of printed characters or EOF. |
1196 | cejka | 129 | */ |
130 | static int print_char(char c, int width, __u64 flags) |
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131 | { |
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132 | int counter = 0; |
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133 | |||
134 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
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1204 | jermar | 135 | while (--width > 0) { /* one space is consumed by character itself hence the predecrement */ |
136 | /* FIXME: painfully slow */ |
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1196 | cejka | 137 | putchar(' '); |
138 | ++counter; |
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139 | } |
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140 | } |
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141 | |||
142 | putchar(c); |
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143 | ++counter; |
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452 | decky | 144 | |
1204 | jermar | 145 | while (--width > 0) { /* one space is consumed by character itself hence the predecrement */ |
1196 | cejka | 146 | putchar(' '); |
147 | ++counter; |
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148 | } |
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149 | |||
150 | return counter; |
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151 | } |
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152 | |||
153 | /** Print one string |
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154 | * @param s string |
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155 | * @param width |
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156 | * @param precision |
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157 | * @param flags |
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158 | * @return number of printed characters or EOF |
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159 | */ |
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160 | static int print_string(char *s, int width, int precision, __u64 flags) |
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161 | { |
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162 | int counter = 0; |
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163 | __native size; |
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164 | |||
165 | if (s == NULL) { |
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166 | return putstr("(NULL)"); |
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167 | } |
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168 | |||
169 | size = strlen(s); |
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170 | |||
171 | /* print leading spaces */ |
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172 | |||
173 | if (precision == 0) |
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174 | precision = size; |
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175 | |||
176 | width -= precision; |
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177 | |||
178 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
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179 | while (width-- > 0) { |
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180 | putchar(' '); |
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181 | counter++; |
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182 | } |
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183 | } |
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184 | |||
185 | while (precision > size) { |
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186 | precision--; |
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187 | putchar(' '); |
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188 | ++counter; |
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189 | } |
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190 | |||
191 | if (putnchars(s, precision) == EOF) { |
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192 | return EOF; |
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193 | } |
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194 | |||
195 | counter += precision; |
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196 | |||
197 | while (width-- > 0) { |
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198 | putchar(' '); |
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199 | ++counter; |
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200 | } |
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201 | |||
202 | return ++counter; |
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203 | } |
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204 | |||
205 | |||
452 | decky | 206 | /** Print number in given base |
207 | * |
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208 | * Print significant digits of a number in given |
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209 | * base. |
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210 | * |
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211 | * @param num Number to print. |
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1196 | cejka | 212 | * @param width |
213 | * @param precision |
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452 | decky | 214 | * @param base Base to print the number in (should |
215 | * be in range 2 .. 16). |
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1196 | cejka | 216 | * @param flags output modifiers |
1224 | cejka | 217 | * @return number of written characters or EOF. |
452 | decky | 218 | */ |
1196 | cejka | 219 | static int print_number(__u64 num, int width, int precision, int base , __u64 flags) |
452 | decky | 220 | { |
1196 | cejka | 221 | char *digits = digits_small; |
222 | char d[PRINT_NUMBER_BUFFER_SIZE]; /* this is good enough even for base == 2, prefix and sign */ |
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223 | char *ptr = &d[PRINT_NUMBER_BUFFER_SIZE - 1]; |
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224 | int size = 0; |
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1226 | cejka | 225 | int number_size; /* size of plain number */ |
1196 | cejka | 226 | int written = 0; |
227 | char sgn; |
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452 | decky | 228 | |
1196 | cejka | 229 | if (flags & __PRINTF_FLAG_BIGCHARS) |
230 | digits = digits_big; |
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452 | decky | 231 | |
1196 | cejka | 232 | *ptr-- = 0; /* Put zero at end of string */ |
233 | |||
234 | if (num == 0) { |
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235 | *ptr-- = '0'; |
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236 | size++; |
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237 | } else { |
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238 | do { |
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239 | *ptr-- = digits[num % base]; |
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240 | size++; |
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241 | } while (num /= base); |
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242 | } |
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243 | |||
1226 | cejka | 244 | number_size = size; |
245 | |||
1196 | cejka | 246 | /* Collect sum of all prefixes/signs/... to calculate padding and leading zeroes */ |
247 | if (flags & __PRINTF_FLAG_PREFIX) { |
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248 | switch(base) { |
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249 | case 2: /* Binary formating is not standard, but usefull */ |
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250 | size += 2; |
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251 | break; |
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252 | case 8: |
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253 | size++; |
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254 | break; |
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255 | case 16: |
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256 | size += 2; |
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257 | break; |
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258 | } |
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259 | } |
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260 | |||
261 | sgn = 0; |
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262 | if (flags & __PRINTF_FLAG_SIGNED) { |
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263 | if (flags & __PRINTF_FLAG_NEGATIVE) { |
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264 | sgn = '-'; |
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265 | size++; |
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266 | } else if (flags & __PRINTF_FLAG_SHOWPLUS) { |
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267 | sgn = '+'; |
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268 | size++; |
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269 | } else if (flags & __PRINTF_FLAG_SPACESIGN) { |
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270 | sgn = ' '; |
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271 | size++; |
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272 | } |
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273 | } |
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274 | |||
275 | if (flags & __PRINTF_FLAG_LEFTALIGNED) { |
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276 | flags &= ~__PRINTF_FLAG_ZEROPADDED; |
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277 | } |
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278 | |||
279 | /* if number is leftaligned or precision is specified then zeropadding is ignored */ |
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280 | if (flags & __PRINTF_FLAG_ZEROPADDED) { |
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281 | if ((precision == 0) && (width > size)) { |
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1226 | cejka | 282 | precision = width - size + number_size; |
1196 | cejka | 283 | } |
284 | } |
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285 | |||
286 | /* print leading spaces */ |
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1226 | cejka | 287 | if (number_size > precision) /* We must print whole number not only a part */ |
288 | precision = number_size; |
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1196 | cejka | 289 | |
1226 | cejka | 290 | width -= precision + size - number_size; |
1196 | cejka | 291 | |
292 | if (!(flags & __PRINTF_FLAG_LEFTALIGNED)) { |
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293 | while (width-- > 0) { |
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294 | putchar(' '); |
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295 | written++; |
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296 | } |
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297 | } |
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298 | |||
299 | /* print sign */ |
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300 | if (sgn) { |
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301 | putchar(sgn); |
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302 | written++; |
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303 | } |
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304 | |||
305 | /* print prefix */ |
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306 | |||
307 | if (flags & __PRINTF_FLAG_PREFIX) { |
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308 | switch(base) { |
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309 | case 2: /* Binary formating is not standard, but usefull */ |
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310 | putchar('0'); |
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311 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
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312 | putchar('B'); |
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313 | } else { |
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314 | putchar('b'); |
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315 | } |
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316 | written += 2; |
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317 | break; |
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318 | case 8: |
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319 | putchar('o'); |
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320 | written++; |
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321 | break; |
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322 | case 16: |
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323 | putchar('0'); |
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324 | if (flags & __PRINTF_FLAG_BIGCHARS) { |
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325 | putchar('X'); |
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326 | } else { |
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327 | putchar('x'); |
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328 | } |
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329 | written += 2; |
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330 | break; |
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331 | } |
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332 | } |
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333 | |||
334 | /* print leading zeroes */ |
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1226 | cejka | 335 | precision -= number_size; |
1196 | cejka | 336 | while (precision-- > 0) { |
337 | putchar('0'); |
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338 | written++; |
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339 | } |
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340 | |||
341 | |||
342 | /* print number itself */ |
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343 | |||
344 | written += putstr(++ptr); |
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345 | |||
346 | /* print ending spaces */ |
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347 | |||
348 | while (width-- > 0) { |
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349 | putchar(' '); |
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350 | written++; |
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351 | } |
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352 | |||
353 | return written; |
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452 | decky | 354 | } |
355 | |||
1229 | jermar | 356 | /** Print formatted string. |
61 | decky | 357 | * |
1229 | jermar | 358 | * Print string formatted according to the @fmt parameter |
1204 | jermar | 359 | * and variadic arguments. Each formatting directive |
1198 | cejka | 360 | * must have the following form: |
361 | * % [ flags ] [ width ] [ .precision ] [ type ] conversion |
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61 | decky | 362 | * |
1198 | cejka | 363 | * FLAGS: |
1204 | jermar | 364 | * # Force to print prefix. |
365 | * For conversion %o the prefix is 0, for %x and %X prefixes are 0x and 0X and for conversion %b the prefix is 0b. |
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1198 | cejka | 366 | * - Align to left. |
367 | * + Print positive sign just as negative. |
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1229 | jermar | 368 | * (space) If the printed number is positive and '+' flag is not set, print space in place of sign. |
369 | * 0 Print 0 as padding instead of spaces. Zeroes are placed between sign and the rest of the number. |
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1204 | jermar | 370 | * This flag is ignored if '-' flag is specified. |
1198 | cejka | 371 | * |
372 | * WIDTH: |
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373 | * Specify minimal width of printed argument. If it is bigger, width is ignored. |
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374 | * If width is specified with a '*' character instead of number, width is taken from parameter list. |
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1229 | jermar | 375 | * And integer parameter is expected before parameter for processed conversion specification. |
1204 | jermar | 376 | * If this value is negative its absolute value is taken and the '-' flag is set. |
405 | jermar | 377 | * |
1198 | cejka | 378 | * PRECISION: |
379 | * Value precision. For numbers it specifies minimum valid numbers. |
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380 | * Smaller numbers are printed with leading zeroes. Bigger numbers are not affected. |
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1204 | jermar | 381 | * Strings with more than precision characters are cut off. |
382 | * Just as with width, an '*' can be used used instead of a number. |
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383 | * An integer value is then expected in parameters. When both width and precision are specified using '*', |
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1198 | cejka | 384 | * first parameter is used for width and second one for precision. |
385 | * |
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386 | * TYPE: |
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387 | * hh signed or unsigned char |
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388 | * h signed or usigned short |
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389 | * signed or usigned int (default value) |
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390 | * l signed or usigned long int |
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391 | * ll signed or usigned long long int |
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392 | * z __native (non-standard extension) |
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393 | * |
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394 | * |
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395 | * CONVERSIONS: |
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396 | * |
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1229 | jermar | 397 | * % Print percentage character itself. |
405 | jermar | 398 | * |
1198 | cejka | 399 | * c Print single character. |
405 | jermar | 400 | * |
1198 | cejka | 401 | * s Print zero terminated string. If a NULL value is passed as value, "(NULL)" is printed instead. |
402 | * |
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403 | * P, p Print value of a pointer. Void * value is expected and it is printed in hexadecimal notation with prefix |
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1229 | jermar | 404 | * (as with %#X or %#x for 32bit or %#X / %#x for 64bit long pointers). |
405 | jermar | 405 | * |
1198 | cejka | 406 | * b Print value as unsigned binary number. Prefix is not printed by default. (Nonstandard extension.) |
407 | * |
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408 | * o Print value as unsigned octal number. Prefix is not printed by default. |
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405 | jermar | 409 | * |
1198 | cejka | 410 | * d,i Print signed decimal number. There is no difference between d and i conversion. |
405 | jermar | 411 | * |
1198 | cejka | 412 | * u Print unsigned decimal number. |
405 | jermar | 413 | * |
1229 | jermar | 414 | * X, x Print hexadecimal number with upper- or lower-case. Prefix is not printed by default. |
1198 | cejka | 415 | * |
1229 | jermar | 416 | * All other characters from @fmt except the formatting directives |
61 | decky | 417 | * are printed in verbatim. |
418 | * |
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419 | * @param fmt Formatting NULL terminated string. |
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1229 | jermar | 420 | * @return Number of printed characters or negative value on failure. |
1 | jermar | 421 | */ |
1196 | cejka | 422 | int printf(const char *fmt, ...) |
1 | jermar | 423 | { |
1196 | cejka | 424 | int irqpri; |
425 | int i = 0, j = 0; /* i is index of currently processed char from fmt, j is index to the first not printed nonformating character */ |
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426 | int end; |
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427 | int counter; /* counter of printed characters */ |
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428 | int retval; /* used to store return values from called functions */ |
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40 | jermar | 429 | va_list ap; |
1196 | cejka | 430 | char c; |
431 | qualifier_t qualifier; /* type of argument */ |
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432 | int base; /* base in which will be parameter (numbers only) printed */ |
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433 | __u64 number; /* argument value */ |
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434 | __native size; /* byte size of integer parameter */ |
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435 | int width, precision; |
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436 | __u64 flags; |
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264 | cejka | 437 | |
1196 | cejka | 438 | counter = 0; |
439 | |||
40 | jermar | 440 | va_start(ap, fmt); |
1196 | cejka | 441 | |
413 | jermar | 442 | irqpri = interrupts_disable(); |
1 | jermar | 443 | spinlock_lock(&printflock); |
40 | jermar | 444 | |
1196 | cejka | 445 | |
446 | while ((c = fmt[i])) { |
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447 | /* control character */ |
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448 | if (c == '%' ) { |
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449 | /* print common characters if any processed */ |
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450 | if (i > j) { |
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451 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
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452 | counter = -counter; |
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453 | goto out; |
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454 | } |
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455 | counter += retval; |
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456 | } |
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457 | |||
458 | j = i; |
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459 | /* parse modifiers */ |
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460 | flags = 0; |
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461 | end = 0; |
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462 | |||
463 | do { |
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464 | ++i; |
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465 | switch (c = fmt[i]) { |
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466 | case '#': flags |= __PRINTF_FLAG_PREFIX; break; |
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467 | case '-': flags |= __PRINTF_FLAG_LEFTALIGNED; break; |
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468 | case '+': flags |= __PRINTF_FLAG_SHOWPLUS; break; |
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469 | case ' ': flags |= __PRINTF_FLAG_SPACESIGN; break; |
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470 | case '0': flags |= __PRINTF_FLAG_ZEROPADDED; break; |
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471 | default: end = 1; |
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472 | }; |
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473 | |||
474 | } while (end == 0); |
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475 | |||
476 | /* width & '*' operator */ |
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477 | width = 0; |
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478 | if (isdigit(fmt[i])) { |
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479 | while (isdigit(fmt[i])) { |
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480 | width *= 10; |
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481 | width += fmt[i++] - '0'; |
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482 | } |
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483 | } else if (fmt[i] == '*') { |
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484 | /* get width value from argument list*/ |
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485 | i++; |
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486 | width = (int)va_arg(ap, int); |
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487 | if (width < 0) { |
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488 | /* negative width means to set '-' flag */ |
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489 | width *= -1; |
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490 | flags |= __PRINTF_FLAG_LEFTALIGNED; |
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491 | } |
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492 | } |
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493 | |||
494 | /* precision and '*' operator */ |
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495 | precision = 0; |
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496 | if (fmt[i] == '.') { |
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497 | ++i; |
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498 | if (isdigit(fmt[i])) { |
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499 | while (isdigit(fmt[i])) { |
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500 | precision *= 10; |
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501 | precision += fmt[i++] - '0'; |
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502 | } |
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503 | } else if (fmt[i] == '*') { |
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504 | /* get precision value from argument list*/ |
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505 | i++; |
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506 | precision = (int)va_arg(ap, int); |
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507 | if (precision < 0) { |
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508 | /* negative precision means to ignore it */ |
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509 | precision = 0; |
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510 | } |
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511 | } |
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512 | } |
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1 | jermar | 513 | |
1196 | cejka | 514 | switch (fmt[i++]) { |
515 | /** TODO: unimplemented qualifiers: |
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516 | * t ptrdiff_t - ISO C 99 |
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517 | */ |
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518 | case 'h': /* char or short */ |
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519 | qualifier = PrintfQualifierShort; |
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520 | if (fmt[i] == 'h') { |
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521 | i++; |
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522 | qualifier = PrintfQualifierByte; |
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523 | } |
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524 | break; |
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525 | case 'l': /* long or long long*/ |
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526 | qualifier = PrintfQualifierLong; |
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527 | if (fmt[i] == 'l') { |
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528 | i++; |
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529 | qualifier = PrintfQualifierLongLong; |
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530 | } |
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531 | break; |
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532 | case 'z': /* __native */ |
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533 | qualifier = PrintfQualifierNative; |
||
534 | break; |
||
535 | default: |
||
536 | qualifier = PrintfQualifierInt; /* default type */ |
||
537 | --i; |
||
538 | } |
||
539 | |||
540 | base = 10; |
||
1 | jermar | 541 | |
1196 | cejka | 542 | switch (c = fmt[i]) { |
1 | jermar | 543 | |
1196 | cejka | 544 | /* |
545 | * String and character conversions. |
||
546 | */ |
||
547 | case 's': |
||
548 | if ((retval = print_string(va_arg(ap, char*), width, precision, flags)) == EOF) { |
||
549 | counter = -counter; |
||
550 | goto out; |
||
551 | }; |
||
552 | |||
553 | counter += retval; |
||
554 | j = i + 1; |
||
555 | goto next_char; |
||
556 | case 'c': |
||
557 | c = va_arg(ap, unsigned int); |
||
558 | if ((retval = print_char(c, width, flags )) == EOF) { |
||
559 | counter = -counter; |
||
560 | goto out; |
||
561 | }; |
||
562 | |||
563 | counter += retval; |
||
564 | j = i + 1; |
||
565 | goto next_char; |
||
1 | jermar | 566 | |
1196 | cejka | 567 | /* |
568 | * Integer values |
||
569 | */ |
||
570 | case 'P': /* pointer */ |
||
571 | flags |= __PRINTF_FLAG_BIGCHARS; |
||
572 | case 'p': |
||
573 | flags |= __PRINTF_FLAG_PREFIX; |
||
574 | base = 16; |
||
575 | qualifier = PrintfQualifierPointer; |
||
576 | break; |
||
577 | case 'b': |
||
578 | base = 2; |
||
579 | break; |
||
580 | case 'o': |
||
581 | base = 8; |
||
582 | break; |
||
583 | case 'd': |
||
584 | case 'i': |
||
585 | flags |= __PRINTF_FLAG_SIGNED; |
||
586 | case 'u': |
||
587 | break; |
||
588 | case 'X': |
||
589 | flags |= __PRINTF_FLAG_BIGCHARS; |
||
590 | case 'x': |
||
591 | base = 16; |
||
592 | break; |
||
593 | /* percentile itself */ |
||
594 | case '%': |
||
595 | j = i; |
||
596 | goto next_char; |
||
597 | /* |
||
598 | * Bad formatting. |
||
599 | */ |
||
600 | default: |
||
601 | /* Unknown format |
||
602 | * now, the j is index of '%' so we will |
||
603 | * print whole bad format sequence |
||
604 | */ |
||
605 | goto next_char; |
||
606 | } |
||
607 | |||
608 | |||
609 | /* Print integers */ |
||
610 | /* print number */ |
||
611 | switch (qualifier) { |
||
612 | case PrintfQualifierByte: |
||
613 | size = sizeof(unsigned char); |
||
614 | number = (__u64)va_arg(ap, unsigned int); |
||
615 | break; |
||
616 | case PrintfQualifierShort: |
||
617 | size = sizeof(unsigned short); |
||
618 | number = (__u64)va_arg(ap, unsigned int); |
||
619 | break; |
||
620 | case PrintfQualifierInt: |
||
621 | size = sizeof(unsigned int); |
||
622 | number = (__u64)va_arg(ap, unsigned int); |
||
623 | break; |
||
624 | case PrintfQualifierLong: |
||
625 | size = sizeof(unsigned long); |
||
626 | number = (__u64)va_arg(ap, unsigned long); |
||
627 | break; |
||
628 | case PrintfQualifierLongLong: |
||
629 | size = sizeof(unsigned long long); |
||
630 | number = (__u64)va_arg(ap, unsigned long long); |
||
631 | break; |
||
632 | case PrintfQualifierPointer: |
||
633 | size = sizeof(void *); |
||
634 | number = (__u64)(unsigned long)va_arg(ap, void *); |
||
635 | break; |
||
636 | case PrintfQualifierNative: |
||
637 | size = sizeof(__native); |
||
638 | number = (__u64)va_arg(ap, __native); |
||
639 | break; |
||
640 | default: /* Unknown qualifier */ |
||
641 | counter = -counter; |
||
642 | goto out; |
||
643 | |||
644 | } |
||
645 | |||
646 | if (flags & __PRINTF_FLAG_SIGNED) { |
||
647 | if (number & (0x1 << (size*8 - 1))) { |
||
648 | flags |= __PRINTF_FLAG_NEGATIVE; |
||
649 | |||
650 | if (size == sizeof(__u64)) { |
||
651 | number = -((__s64)number); |
||
652 | } else { |
||
653 | number = ~number; |
||
654 | number &= (~((0xFFFFFFFFFFFFFFFFll) << (size * 8))); |
||
655 | number++; |
||
656 | } |
||
657 | } |
||
658 | } |
||
1 | jermar | 659 | |
1196 | cejka | 660 | if ((retval = print_number(number, width, precision, base, flags)) == EOF ) { |
661 | counter = -counter; |
||
662 | goto out; |
||
663 | }; |
||
77 | jermar | 664 | |
1196 | cejka | 665 | counter += retval; |
666 | j = i + 1; |
||
667 | } |
||
668 | next_char: |
||
669 | |||
670 | ++i; |
||
671 | } |
||
674 | cejka | 672 | |
1196 | cejka | 673 | if (i > j) { |
674 | if ((retval = putnchars(&fmt[j], (__native)(i - j))) == EOF) { /* error */ |
||
675 | counter = -counter; |
||
676 | goto out; |
||
1 | jermar | 677 | } |
1196 | cejka | 678 | counter += retval; |
1 | jermar | 679 | } |
680 | out: |
||
681 | spinlock_unlock(&printflock); |
||
413 | jermar | 682 | interrupts_restore(irqpri); |
40 | jermar | 683 | |
684 | va_end(ap); |
||
1196 | cejka | 685 | return counter; |
1 | jermar | 686 | } |