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  1. /***************************************************************************
  2. * Copyright (C) 2006 by Dominic Rath *
  3. * Dominic.Rath@gmx.de *
  4. * *
  5. * Copyright (C) 2007,2008 √ėyvind Harboe *
  6. * oyvind.harboe@zylin.com *
  7. * *
  8. * Copyright (C) 2008 by Spencer Oliver *
  9. * spen@spen-soft.co.uk *
  10. * *
  11. * This program is free software; you can redistribute it and/or modify *
  12. * it under the terms of the GNU General Public License as published by *
  13. * the Free Software Foundation; either version 2 of the License, or *
  14. * (at your option) any later version. *
  15. * *
  16. * This program is distributed in the hope that it will be useful, *
  17. * but WITHOUT ANY WARRANTY; without even the implied warranty of *
  18. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
  19. * GNU General Public License for more details. *
  20. * *
  21. * You should have received a copy of the GNU General Public License *
  22. * along with this program; if not, write to the *
  23. * Free Software Foundation, Inc., *
  24. * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
  25. ***************************************************************************/
  26. #ifndef REPLACEMENTS_H
  27. #define REPLACEMENTS_H
  28. /* MIN,MAX macros */
  29. #ifndef MIN
  30. #define MIN(a, b) (((a) < (b)) ? (a) : (b))
  31. #endif
  32. #ifndef MAX
  33. #define MAX(a, b) (((a) > (b)) ? (a) : (b))
  34. #endif
  35. /* for systems that do not support ENOTSUP
  36. * win32 being one of them */
  37. #ifndef ENOTSUP
  38. #define ENOTSUP 134 /* Not supported */
  39. #endif
  40. /* for systems that do not support O_BINARY
  41. * linux being one of them */
  42. #ifndef O_BINARY
  43. #define O_BINARY 0
  44. #endif
  45. #ifndef HAVE_SYS_TIME_H
  46. #ifndef _TIMEVAL_DEFINED
  47. #define _TIMEVAL_DEFINED
  48. struct timeval {
  49. long tv_sec;
  50. long tv_usec;
  51. };
  52. #endif /* _TIMEVAL_DEFINED */
  53. #endif
  54. /* gettimeofday() */
  55. #ifndef HAVE_GETTIMEOFDAY
  56. #ifdef _WIN32
  57. struct timezone {
  58. int tz_minuteswest;
  59. int tz_dsttime;
  60. };
  61. #endif
  62. struct timezone;
  63. int gettimeofday(struct timeval *tv, struct timezone *tz);
  64. #endif
  65. #ifndef IN_REPLACEMENTS_C
  66. /**** clear_malloc & fill_malloc ****/
  67. void *clear_malloc(size_t size);
  68. void *fill_malloc(size_t size);
  69. #endif
  70. /*
  71. * Now you have 3 ways for the malloc function:
  72. *
  73. * 1. Do not change anything, use the original malloc
  74. *
  75. * 2. Use the clear_malloc function instead of the original malloc.
  76. * In this case you must use the following define:
  77. * #define malloc((_a)) clear_malloc((_a))
  78. *
  79. * 3. Use the fill_malloc function instead of the original malloc.
  80. * In this case you must use the following define:
  81. * #define malloc((_a)) fill_malloc((_a))
  82. *
  83. * We have figured out that there could exist some malloc problems
  84. * where variables are using without to be initialise. To find this
  85. * places, use the fill_malloc function. With this function we want
  86. * to initialize memory to some known bad state. This is quite easily
  87. * spotted in the debugger and will trap to an invalid address.
  88. *
  89. * clear_malloc can be used if you want to set not initialise
  90. * variable to 0.
  91. *
  92. * If you do not want to change the malloc function, to not use one of
  93. * the following macros. Which is the default way.
  94. */
  95. /* #define malloc(_a) clear_malloc(_a)
  96. * #define malloc(_a) fill_malloc(_a) */
  97. /* GNU extensions to the C library that may be missing on some systems */
  98. #ifndef HAVE_STRNDUP
  99. char *strndup(const char *s, size_t n);
  100. #endif /* HAVE_STRNDUP */
  101. #ifndef HAVE_STRNLEN
  102. size_t strnlen(const char *s, size_t maxlen);
  103. #endif /* HAVE_STRNLEN */
  104. #ifndef HAVE_USLEEP
  105. #ifdef _WIN32
  106. static inline unsigned usleep(unsigned int usecs)
  107. {
  108. Sleep((usecs/1000));
  109. return 0;
  110. }
  111. #else
  112. #error no usleep defined for your platform
  113. #endif
  114. #endif /* HAVE_USLEEP */
  115. /* Windows specific */
  116. #ifdef _WIN32
  117. #define WIN32_LEAN_AND_MEAN
  118. #include <windows.h>
  119. #include <time.h>
  120. /* win32 systems do not support ETIMEDOUT */
  121. #ifndef ETIMEDOUT
  122. #define ETIMEDOUT WSAETIMEDOUT
  123. #endif
  124. #if IS_MINGW == 1
  125. static inline unsigned char inb(unsigned short int port)
  126. {
  127. unsigned char _v;
  128. __asm__ __volatile__ ("inb %w1,%0" : "=a" (_v) : "Nd" (port));
  129. return _v;
  130. }
  131. static inline void outb(unsigned char value, unsigned short int port)
  132. {
  133. __asm__ __volatile__ ("outb %b0,%w1" : : "a" (value), "Nd" (port));
  134. }
  135. /* mingw does not have ffs, so use gcc builtin types */
  136. #define ffs __builtin_ffs
  137. #endif /* IS_MINGW */
  138. int win_select(int max_fd, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *tv);
  139. #endif /* _WIN32 */
  140. /* generic socket functions for Windows and Posix */
  141. static inline int write_socket(int handle, const void *buffer, unsigned int count)
  142. {
  143. #ifdef _WIN32
  144. return send(handle, buffer, count, 0);
  145. #else
  146. return write(handle, buffer, count);
  147. #endif
  148. }
  149. static inline int read_socket(int handle, void *buffer, unsigned int count)
  150. {
  151. #ifdef _WIN32
  152. return recv(handle, buffer, count, 0);
  153. #else
  154. return read(handle, buffer, count);
  155. #endif
  156. }
  157. static inline int close_socket(int sock)
  158. {
  159. #ifdef _WIN32
  160. return closesocket(sock);
  161. #else
  162. return close(sock);
  163. #endif
  164. }
  165. static inline void socket_nonblock(int fd)
  166. {
  167. #ifdef _WIN32
  168. unsigned long nonblock = 1;
  169. ioctlsocket(fd, FIONBIO, &nonblock);
  170. #else
  171. int oldopts = fcntl(fd, F_GETFL, 0);
  172. fcntl(fd, F_SETFL, oldopts | O_NONBLOCK);
  173. #endif
  174. }
  175. static inline int socket_select(int max_fd,
  176. fd_set *rfds,
  177. fd_set *wfds,
  178. fd_set *efds,
  179. struct timeval *tv)
  180. {
  181. #ifdef _WIN32
  182. return win_select(max_fd, rfds, wfds, efds, tv);
  183. #else
  184. return select(max_fd, rfds, wfds, efds, tv);
  185. #endif
  186. }
  187. #ifndef HAVE_ELF_H
  188. #include <helper/types.h>
  189. typedef uint32_t Elf32_Addr;
  190. typedef uint16_t Elf32_Half;
  191. typedef uint32_t Elf32_Off;
  192. typedef int32_t Elf32_Sword;
  193. typedef uint32_t Elf32_Word;
  194. typedef uint32_t Elf32_Size;
  195. typedef Elf32_Off Elf32_Hashelt;
  196. typedef struct {
  197. unsigned char e_ident[16]; /* Magic number and other info */
  198. Elf32_Half e_type; /* Object file type */
  199. Elf32_Half e_machine; /* Architecture */
  200. Elf32_Word e_version; /* Object file version */
  201. Elf32_Addr e_entry; /* Entry point virtual address */
  202. Elf32_Off e_phoff; /* Program header table file offset */
  203. Elf32_Off e_shoff; /* Section header table file offset */
  204. Elf32_Word e_flags; /* Processor-specific flags */
  205. Elf32_Half e_ehsize; /* ELF header size in bytes */
  206. Elf32_Half e_phentsize; /* Program header table entry size */
  207. Elf32_Half e_phnum; /* Program header table entry count */
  208. Elf32_Half e_shentsize; /* Section header table entry size */
  209. Elf32_Half e_shnum; /* Section header table entry count */
  210. Elf32_Half e_shstrndx; /* Section header string table index */
  211. } Elf32_Ehdr;
  212. #define ELFMAG "\177ELF"
  213. #define SELFMAG 4
  214. #define EI_CLASS 4 /* File class byte index */
  215. #define ELFCLASS32 1 /* 32-bit objects */
  216. #define ELFCLASS64 2 /* 64-bit objects */
  217. #define EI_DATA 5 /* Data encoding byte index */
  218. #define ELFDATA2LSB 1 /* 2's complement, little endian */
  219. #define ELFDATA2MSB 2 /* 2's complement, big endian */
  220. typedef struct {
  221. Elf32_Word p_type; /* Segment type */
  222. Elf32_Off p_offset; /* Segment file offset */
  223. Elf32_Addr p_vaddr; /* Segment virtual address */
  224. Elf32_Addr p_paddr; /* Segment physical address */
  225. Elf32_Size p_filesz; /* Segment size in file */
  226. Elf32_Size p_memsz; /* Segment size in memory */
  227. Elf32_Word p_flags; /* Segment flags */
  228. Elf32_Size p_align; /* Segment alignment */
  229. } Elf32_Phdr;
  230. #define PT_LOAD 1 /* Loadable program segment */
  231. #endif /* HAVE_ELF_H */
  232. #endif /* REPLACEMENTS_H */