| 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 <str.h>
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| 41 |
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| 42 | #ifndef NVERIFY_PRINTF
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| 43 |
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| 44 | #define PRINTF_ATTRIBUTE(start, end) \
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| 45 | __attribute__((format(gnu_printf, start, end)))
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| 46 |
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| 47 | #else /* NVERIFY_PRINTF */
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| 48 |
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| 49 | #define PRINTF_ATTRIBUTE(start, end)
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| 50 |
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| 51 | #endif /* NVERIFY_PRINTF */
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| 52 |
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| 53 | #define EOF (-1)
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| 54 |
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| 55 | /** Default size for stream I/O buffers */
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| 56 | #define BUFSIZ 4096
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| 57 |
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| 58 | #define DEBUG(fmt, ...) \
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| 59 | { \
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| 60 | char _buf[256]; \
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| 61 | int _n = snprintf(_buf, sizeof(_buf), fmt, ##__VA_ARGS__); \
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| 62 | if (_n > 0) \
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| 63 | (void) __SYSCALL3(SYS_KLOG, 1, (sysarg_t) _buf, str_size(_buf)); \
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| 64 | }
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| 65 |
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| 66 | #ifndef SEEK_SET
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| 67 | #define SEEK_SET 0
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| 68 | #endif
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| 69 |
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| 70 | #ifndef SEEK_CUR
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| 71 | #define SEEK_CUR 1
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| 72 | #endif
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| 73 |
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| 74 | #ifndef SEEK_END
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| 75 | #define SEEK_END 2
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| 76 | #endif
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| 77 |
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| 78 | enum _buffer_type {
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| 79 | /** No buffering */
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| 80 | _IONBF,
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| 81 | /** Line buffering */
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| 82 | _IOLBF,
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| 83 | /** Full buffering */
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| 84 | _IOFBF
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| 85 | };
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| 86 |
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| 87 | enum _buffer_state {
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| 88 | /** Buffer is empty */
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| 89 | _bs_empty,
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| 90 |
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| 91 | /** Buffer contains data to be written */
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| 92 | _bs_write,
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| 93 |
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| 94 | /** Buffer contains prefetched data for reading */
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| 95 | _bs_read
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| 96 | };
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| 97 |
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| 98 | /** Forward declaration */
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| 99 | struct _IO_FILE;
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| 100 | typedef struct _IO_FILE FILE;
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| 101 |
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| 102 | extern FILE *stdin;
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| 103 | extern FILE *stdout;
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| 104 | extern FILE *stderr;
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| 105 |
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| 106 | /* Character and string input functions */
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| 107 | extern int fgetc(FILE *);
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| 108 | extern char *fgets(char *, int, FILE *);
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| 109 |
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| 110 | extern int getchar(void);
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| 111 | extern char *gets(char *, size_t);
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| 112 |
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| 113 | /* Character and string output functions */
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| 114 | extern int fputc(wchar_t, FILE *);
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| 115 | extern int fputs(const char *, FILE *);
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| 116 |
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| 117 | extern int putchar(wchar_t);
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| 118 | extern int puts(const char *);
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| 119 |
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| 120 | /* Formatted string output functions */
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| 121 | extern int fprintf(FILE *, const char*, ...)
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| 122 | PRINTF_ATTRIBUTE(2, 3);
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| 123 | extern int vfprintf(FILE *, const char *, va_list);
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| 124 |
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| 125 | extern int printf(const char *, ...)
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| 126 | PRINTF_ATTRIBUTE(1, 2);
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| 127 | extern int vprintf(const char *, va_list);
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| 128 |
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| 129 | extern int snprintf(char *, size_t , const char *, ...)
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| 130 | PRINTF_ATTRIBUTE(3, 4);
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| 131 | extern int asprintf(char **, const char *, ...)
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| 132 | PRINTF_ATTRIBUTE(2, 3);
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| 133 | extern int vsnprintf(char *, size_t, const char *, va_list);
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| 134 |
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| 135 | /* File stream functions */
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| 136 | extern FILE *fopen(const char *, const char *);
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| 137 | extern FILE *fdopen(int, const char *);
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| 138 | extern int fclose(FILE *);
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| 139 |
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| 140 | extern size_t fread(void *, size_t, size_t, FILE *);
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| 141 | extern size_t fwrite(const void *, size_t, size_t, FILE *);
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| 142 |
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| 143 | extern int fseek(FILE *, off64_t, int);
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| 144 | extern void rewind(FILE *);
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| 145 | extern off64_t ftell(FILE *);
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| 146 | extern int feof(FILE *);
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| 147 | extern int fileno(FILE *);
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| 148 |
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| 149 | extern int fflush(FILE *);
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| 150 | extern int ferror(FILE *);
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| 151 | extern void clearerr(FILE *);
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| 152 |
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| 153 | extern void setvbuf(FILE *, void *, int, size_t);
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| 154 |
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| 155 | /* Misc file functions */
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| 156 | extern int rename(const char *, const char *);
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| 157 |
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| 158 | #endif
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| 159 |
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| 160 | /** @}
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| 161 | */
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