1 | /*
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2 | * Copyright (c) 2005 Martin Decky
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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, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | *
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9 | * - Redistributions of source code must retain the above copyright
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10 | * notice, this list of conditions and the following disclaimer.
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11 | * - Redistributions in binary form must reproduce the above copyright
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12 | * notice, this list of conditions and the following disclaimer in the
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13 | * documentation and/or other materials provided with the distribution.
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14 | * - The name of the author may not be used to endorse or promote products
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15 | * derived from this software without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 | */
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28 |
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29 | /** @addtogroup libc
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30 | * @{
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31 | */
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32 | /** @file
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33 | */
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34 |
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35 | #ifndef LIBC_STDIO_H_
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36 | #define LIBC_STDIO_H_
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37 |
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38 | #include <sys/types.h>
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39 | #include <stdarg.h>
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40 | #include <string.h>
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41 | #include <adt/list.h>
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42 |
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43 | #define EOF (-1)
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44 |
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45 | /** Default size for stream I/O buffers */
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46 | #define BUFSIZ 4096
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47 |
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48 | #define DEBUG(fmt, ...) \
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49 | { \
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50 | char _buf[256]; \
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51 | int _n = snprintf(_buf, sizeof(_buf), fmt, ##__VA_ARGS__); \
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52 | if (_n > 0) \
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53 | (void) __SYSCALL3(SYS_KLOG, 1, (sysarg_t) _buf, str_size(_buf)); \
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54 | }
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55 |
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56 | #ifndef SEEK_SET
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57 | #define SEEK_SET 0
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58 | #define SEEK_CUR 1
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59 | #define SEEK_END 2
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60 | #endif
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61 |
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62 | enum _buffer_type {
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63 | /** No buffering */
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64 | _IONBF,
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65 | /** Line buffering */
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66 | _IOLBF,
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67 | /** Full buffering */
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68 | _IOFBF
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69 | };
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70 |
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71 | typedef struct {
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72 | /** Linked list pointer. */
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73 | link_t link;
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74 |
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75 | /** Underlying file descriptor. */
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76 | int fd;
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77 |
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78 | /** Error indicator. */
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79 | int error;
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80 |
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81 | /** End-of-file indicator. */
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82 | int eof;
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83 |
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84 | /** Klog indicator */
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85 | int klog;
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86 |
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87 | /** Phone to the file provider */
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88 | int phone;
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89 |
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90 | /** Buffering type */
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91 | enum _buffer_type btype;
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92 | /** Buffer */
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93 | uint8_t *buf;
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94 | /** Buffer size */
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95 | size_t buf_size;
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96 | /** Buffer I/O pointer */
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97 | uint8_t *buf_head;
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98 | } FILE;
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99 |
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100 | extern FILE *stdin;
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101 | extern FILE *stdout;
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102 | extern FILE *stderr;
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103 |
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104 | /* Character and string input functions */
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105 | extern int fgetc(FILE *);
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106 | extern char *fgets(char *, size_t, FILE *);
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107 |
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108 | extern int getchar(void);
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109 | extern char *gets(char *, size_t);
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110 |
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111 | /* Character and string output functions */
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112 | extern int fputc(wchar_t, FILE *);
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113 | extern int fputs(const char *, FILE *);
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114 |
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115 | extern int putchar(wchar_t);
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116 | extern int puts(const char *);
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117 |
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118 | /* Formatted string output functions */
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119 | extern int fprintf(FILE *, const char*, ...);
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120 | extern int vfprintf(FILE *, const char *, va_list);
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121 |
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122 | extern int printf(const char *, ...);
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123 | extern int vprintf(const char *, va_list);
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124 |
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125 | extern int snprintf(char *, size_t , const char *, ...);
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126 | extern int asprintf(char **, const char *, ...);
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127 | extern int vsnprintf(char *, size_t, const char *, va_list);
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128 |
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129 | /* File stream functions */
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130 | extern FILE *fopen(const char *, const char *);
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131 | extern FILE *fdopen(int, const char *);
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132 | extern int fclose(FILE *);
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133 |
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134 | extern size_t fread(void *, size_t, size_t, FILE *);
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135 | extern size_t fwrite(const void *, size_t, size_t, FILE *);
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136 |
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137 | extern int fseek(FILE *, long, int);
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138 | extern void rewind(FILE *);
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139 | extern int ftell(FILE *);
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140 | extern int feof(FILE *);
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141 |
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142 | extern int fflush(FILE *);
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143 | extern int ferror(FILE *);
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144 | extern void clearerr(FILE *);
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145 |
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146 | extern void setvbuf(FILE *, void *, int, size_t);
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147 |
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148 | /* Misc file functions */
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149 | extern int rename(const char *, const char *);
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150 |
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151 | #endif
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152 |
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153 | /** @}
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154 | */
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