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  1. /*
  2. * libcaca Colour ASCII-Art library
  3. * Copyright (c) 2006 Sam Hocevar <sam@hocevar.net>
  4. * 2009 Jean-Yves Lamoureux <jylam@lnxscene.org>
  5. * All Rights Reserved
  6. *
  7. * This library is free software. It comes without any warranty, to
  8. * the extent permitted by applicable law. You can redistribute it
  9. * and/or modify it under the terms of the Do What The Fuck You Want
  10. * To Public License, Version 2, as published by Sam Hocevar. See
  11. * http://sam.zoy.org/wtfpl/COPYING for more details.
  12. */
  13. /*
  14. * This file contains replacement functions for the standard C library
  15. * that must be used when building libcaca and libcaca into a kernel.
  16. */
  17. #if !defined HAVE_KLIBC_H
  18. #define HAVE_KLIBC_H
  19. /* Various typedefs -- some are x86-specific */
  20. #define CUSTOM_INTTYPES
  21. #define outb(port,value) __asm__ __volatile__ ("outb %%al,%%dx"::"d" (port), "a" (value));
  22. #define outbp(port,value) __asm __volatile__ ("outb %%al,%%dx; jmp 1f; 1:"::"d" (port), "a" (value));
  23. #define inb(port) ({unsigned char _v; __asm__ __volatile__ ("inb %%dx,%%al" : "=a" (_v) : "d" (port)); _v; })
  24. /* Various defines */
  25. #define NULL ((void *)0)
  26. #define EOF (-1)
  27. #define BUFSIZ 4096
  28. #define RAND_MAX ((unsigned int)0x8000000)
  29. #define INT_MAX ((int)0x7fffffff)
  30. #define M_PI 3.14159265358979323846
  31. #define __BYTE_ORDER 1
  32. #define __BIG_ENDIAN 2
  33. typedef unsigned char u8;
  34. typedef unsigned short u16;
  35. typedef unsigned int u32;
  36. typedef unsigned long long u64;
  37. #ifndef size_t
  38. typedef unsigned int size_t;
  39. #endif
  40. typedef struct file
  41. {
  42. void *mem;
  43. } FILE;
  44. struct timeval
  45. {
  46. int tv_sec;
  47. int tv_usec;
  48. };
  49. struct timezone
  50. {
  51. int tz_minuteswest;
  52. int tz_dsttime;
  53. };
  54. /* stdlib.h functions */
  55. void *malloc(size_t size);
  56. void free(void *ptr);
  57. void *realloc(void *ptr, size_t size);
  58. char *getenv(const char *name);
  59. int rand(void);
  60. int abs(int j);
  61. void exit(int status);
  62. void srand(unsigned int s);
  63. int atexit(void (*function) (void));
  64. FILE *stdin, *stdout, *stderr;
  65. /* string.h functions */
  66. void *memset(void *s, int c, size_t n);
  67. void *memcpy(void *dest, const void *src, size_t n);
  68. void *memmove(void *dest, const void *src, size_t n);
  69. size_t strlen(const char *s);
  70. int strcmp(const char *s1, const char *s2);
  71. int strcasecmp(const char *s1, const char *s2);
  72. int memcmp(const void *s1, const void *s2, size_t n);
  73. char *strdup(const char *s);
  74. char *strchr(const char *s, int c);
  75. /* stdarg.h functions */
  76. typedef void *va_list;
  77. #define va_start(v,a) v = (void *)((uintptr_t)(&a) + sizeof(a))
  78. #define va_end(v)
  79. int vsnprintf(char *str, size_t size, const char *format, va_list ap);
  80. /* va_arg */
  81. #define args_list char *
  82. #define _arg_stack_size(type) (((sizeof(type)-1)/sizeof(int)+1)*sizeof(int))
  83. #define args_start(ap, fmt) do { \
  84. ap = (char *)((unsigned int)&fmt + _arg_stack_size(&fmt)); \
  85. } while (0)
  86. #define args_end(ap)
  87. #define args_next(ap, type) (((type *)(ap+=_arg_stack_size(type)))[-1])
  88. /* stdio.h functions */
  89. FILE *fopen(const char *path, const char *mode);
  90. int feof(FILE * stream);
  91. char *fgets(char *s, int size, FILE * stream);
  92. size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE * stream);
  93. int fclose(FILE * fp);
  94. int printf(const char *format, ...);
  95. int fprintf(FILE * stream, const char *format, ...);
  96. int fflush(FILE * stream);
  97. int sprintf(char *str, const char *format, ...);
  98. int sscanf(const char *str, const char *format, ...);
  99. void itoa(int n, char s[]);
  100. void clearscreen(void);
  101. /* unistd.h functions */
  102. void usleep(unsigned long usec);
  103. void sleep(unsigned long sec);
  104. int getpid(void);
  105. /* time.h functions */
  106. int gettimeofday(struct timeval *tv, struct timezone *tz);
  107. int time(void *);
  108. /* math.h functions */
  109. double cos(double x);
  110. double sin(double x);
  111. double sqrt(double x);
  112. /* errno.h functions */
  113. #define ENOENT 2 /* No such file or directory */
  114. #define ENOMEM 12 /* Out of memory */
  115. #define EBUSY 16 /* Device or resource busy */
  116. #define ENODEV 19 /* No such device */
  117. #define EINVAL 22 /* Invalid argument */
  118. #define ENOTTY 25 /* Not a typewriter */
  119. #define ENOSYS 38 /* Function not implemented */
  120. extern int errno;
  121. /* arpa/inet.h functions */
  122. unsigned int htonl(unsigned int hostlong);
  123. unsigned short htons(unsigned short hostlong);
  124. void print(char *str);
  125. #endif /* HAVE_KLIBC_H */