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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 <adt/list.h>
  41.  
  42. #define EOF  (-1)
  43.  
  44. /** Default size for stream I/O buffers */
  45. #define BUFSIZ 4096
  46.  
  47. #define DEBUG(fmt, ...) \
  48. { \
  49.     char buf[256]; \
  50.     int n = snprintf(buf, sizeof(buf), fmt, ##__VA_ARGS__); \
  51.     if (n > 0) \
  52.         (void) __SYSCALL3(SYS_KLOG, 1, (sysarg_t) buf, str_size(buf)); \
  53. }
  54.  
  55. #ifndef SEEK_SET
  56.     #define SEEK_SET  0
  57.     #define SEEK_CUR  1
  58.     #define SEEK_END  2
  59. #endif
  60.  
  61. enum _buffer_type {
  62.     /** No buffering */
  63.     _IONBF,
  64.     /** Line buffering */
  65.     _IOLBF,
  66.     /** Full buffering */
  67.     _IOFBF
  68. };
  69.  
  70. typedef struct {
  71.     /** Linked list pointer. */
  72.     link_t link;
  73.    
  74.     /** Underlying file descriptor. */
  75.     int fd;
  76.    
  77.     /** Error indicator. */
  78.     int error;
  79.    
  80.     /** End-of-file indicator. */
  81.     int eof;
  82.    
  83.     /** Klog indicator */
  84.     int klog;
  85.    
  86.     /** Phone to the file provider */
  87.     int phone;
  88.  
  89.     /** Buffering type */
  90.     enum _buffer_type btype;
  91.     /** Buffer */
  92.     uint8_t *buf;
  93.     /** Buffer size */
  94.     size_t buf_size;
  95.     /** Buffer I/O pointer */
  96.     uint8_t *buf_head;
  97. } FILE;
  98.  
  99. extern FILE *stdin;
  100. extern FILE *stdout;
  101. extern FILE *stderr;
  102.  
  103. /* Character and string input functions */
  104. extern int fgetc(FILE *);
  105. extern char *fgets(char *, size_t, FILE *);
  106.  
  107. extern int getchar(void);
  108. extern char *gets(char *, size_t);
  109.  
  110. /* Character and string output functions */
  111. extern int fputc(wchar_t, FILE *);
  112. extern int fputs(const char *, FILE *);
  113.  
  114. extern int putchar(wchar_t);
  115. extern int puts(const char *);
  116.  
  117. /* Formatted string output functions */
  118. extern int fprintf(FILE *, const char*, ...);
  119. extern int vfprintf(FILE *, const char *, va_list);
  120.  
  121. extern int printf(const char *, ...);
  122. extern int vprintf(const char *, va_list);
  123.  
  124. extern int snprintf(char *, size_t , const char *, ...);
  125. extern int asprintf(char **, const char *, ...);
  126. extern int vsnprintf(char *, size_t, const char *, va_list);
  127.  
  128. /* File stream functions */
  129. extern FILE *fopen(const char *, const char *);
  130. extern FILE *fdopen(int, const char *);
  131. extern int fclose(FILE *);
  132.  
  133. extern size_t fread(void *, size_t, size_t, FILE *);
  134. extern size_t fwrite(const void *, size_t, size_t, FILE *);
  135.  
  136. extern int fseek(FILE *, long, int);
  137. extern void rewind(FILE *);
  138. extern int ftell(FILE *);
  139. extern int feof(FILE *);
  140.  
  141. extern int fflush(FILE *);
  142. extern int ferror(FILE *);
  143. extern void clearerr(FILE *);
  144.  
  145. extern void setvbuf(FILE *, void *, int, size_t);
  146.  
  147. /* Misc file functions */
  148. extern int rename(const char *, const char *);
  149.  
  150. #endif
  151.  
  152. /** @}
  153.  */
  154.