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  1. /*
  2.  * Copyright (c) 2005 Martin Decky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup libc
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef LIBC_STDIO_H_
  36. #define LIBC_STDIO_H_
  37.  
  38. #include <sys/types.h>
  39. #include <stdarg.h>
  40. #include <string.h>
  41. #include <adt/list.h>
  42.  
  43. #define EOF  (-1)
  44.  
  45. /** Default size for stream I/O buffers */
  46. #define BUFSIZ  4096
  47.  
  48. #define DEBUG(fmt, ...) \
  49.     { \
  50.         char _buf[256]; \
  51.         int _n = snprintf(_buf, sizeof(_buf), fmt, ##__VA_ARGS__); \
  52.         if (_n > 0) \
  53.             (void) __SYSCALL3(SYS_KLOG, 1, (sysarg_t) _buf, str_size(_buf)); \
  54.     }
  55.  
  56. #ifndef SEEK_SET
  57.     #define SEEK_SET  0
  58.     #define SEEK_CUR  1
  59.     #define SEEK_END  2
  60. #endif
  61.  
  62. enum _buffer_type {
  63.     /** No buffering */
  64.     _IONBF,
  65.     /** Line buffering */
  66.     _IOLBF,
  67.     /** Full buffering */
  68.     _IOFBF
  69. };
  70.  
  71. typedef struct {
  72.     /** Linked list pointer. */
  73.     link_t link;
  74.    
  75.     /** Underlying file descriptor. */
  76.     int fd;
  77.    
  78.     /** Error indicator. */
  79.     int error;
  80.    
  81.     /** End-of-file indicator. */
  82.     int eof;
  83.    
  84.     /** Klog indicator */
  85.     int klog;
  86.    
  87.     /** Phone to the file provider */
  88.     int phone;
  89.  
  90.     /** Buffering type */
  91.     enum _buffer_type btype;
  92.     /** Buffer */
  93.     uint8_t *buf;
  94.     /** Buffer size */
  95.     size_t buf_size;
  96.     /** Buffer I/O pointer */
  97.     uint8_t *buf_head;
  98. } FILE;
  99.  
  100. extern FILE *stdin;
  101. extern FILE *stdout;
  102. extern FILE *stderr;
  103.  
  104. /* Character and string input functions */
  105. extern int fgetc(FILE *);
  106. extern char *fgets(char *, size_t, FILE *);
  107.  
  108. extern int getchar(void);
  109. extern char *gets(char *, size_t);
  110.  
  111. /* Character and string output functions */
  112. extern int fputc(wchar_t, FILE *);
  113. extern int fputs(const char *, FILE *);
  114.  
  115. extern int putchar(wchar_t);
  116. extern int puts(const char *);
  117.  
  118. /* Formatted string output functions */
  119. extern int fprintf(FILE *, const char*, ...);
  120. extern int vfprintf(FILE *, const char *, va_list);
  121.  
  122. extern int printf(const char *, ...);
  123. extern int vprintf(const char *, va_list);
  124.  
  125. extern int snprintf(char *, size_t , const char *, ...);
  126. extern int asprintf(char **, const char *, ...);
  127. extern int vsnprintf(char *, size_t, const char *, va_list);
  128.  
  129. /* File stream functions */
  130. extern FILE *fopen(const char *, const char *);
  131. extern FILE *fdopen(int, const char *);
  132. extern int fclose(FILE *);
  133.  
  134. extern size_t fread(void *, size_t, size_t, FILE *);
  135. extern size_t fwrite(const void *, size_t, size_t, FILE *);
  136.  
  137. extern int fseek(FILE *, long, int);
  138. extern void rewind(FILE *);
  139. extern int ftell(FILE *);
  140. extern int feof(FILE *);
  141.  
  142. extern int fflush(FILE *);
  143. extern int ferror(FILE *);
  144. extern void clearerr(FILE *);
  145.  
  146. extern void setvbuf(FILE *, void *, int, size_t);
  147.  
  148. /* Misc file functions */
  149. extern int rename(const char *, const char *);
  150.  
  151. #endif
  152.  
  153. /** @}
  154.  */
  155.