Below is the full text to system.h from the source code of NetHack 3.0.0. To link to a particular line, write [[NetHack 3.0.0/system.h#line123]], for example.
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1. /* SCCS Id: @(#)system.h 3.0 88/10/10 */ 2. /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ 3. /* NetHack may be freely redistributed. See license for details. */ 4. 5. #ifndef SYSTEM_H 6. #define SYSTEM_H 7. 8. #define E extern 9. 10. #ifdef AMIGA 11. #define _SIZE_T 12. typedef unsigned int size_t; 13. #else 14. # include <sys/types.h> 15. #endif 16. 17. #ifdef ULTRIX 18. /* The Ultrix v3.0 <sys/types.h> seems to be very wrong. */ 19. #define off_t long 20. #define time_t long 21. #endif 22. 23. /* some old <sys/types.h> may not define off_t and size_t; if your system is 24. * one of these, define them here 25. */ 26. #ifdef MSDOS 27. # ifndef _SIZE_T 28. #define _SIZE_T 29. typedef unsigned int size_t; 30. # endif 31. # ifdef __TURBOC__ 32. typedef long off_t; 33. # endif 34. #endif 35. 36. /* You may want to change this to fit your system, as this is almost 37. * impossible to get right automatically. 38. * This is the type of signal handling functions. 39. */ 40. #if defined(__STDC__) || defined(ULTRIX) 41. /* also SVR3 and later, Sun4.0 and later */ 42. #define SIG_RET_TYPE void (*)() 43. #else 44. /* BSD, SIII, SVR2 and earlier, Sun3.5 and earlier */ 45. #define SIG_RET_TYPE int (*)() 46. #endif 47. 48. #if defined(BSD) || defined(ULTRIX) || defined(RANDOM) 49. E long random(); 50. E void srandom P((unsigned int)); 51. #else 52. E long lrand48(); 53. E void srand48(); 54. #endif /* BSD || ULTRIX || RANDOM */ 55. 56. #if !defined(BSD) || defined(ultrix) 57. /* real BSD wants all these to return int */ 58. # ifndef MSDOS 59. E void exit P((int)); 60. # endif /* MSDOS */ 61. E void free P((genericptr_t)); 62. E void perror P((const char *)); 63. #endif 64. 65. #if defined(BSD) || defined(ULTRIX) 66. E int qsort(); 67. #else 68. E void qsort P((genericptr_t,size_t,size_t,int(*)(genericptr_t,genericptr_t))); 69. #endif 70. 71. #ifdef ULTRIX 72. E long lseek P((int,off_t,int)); 73. /* Ultrix 3.0 man page mistakenly says it returns an int. */ 74. E int write P((int,char *,int)); 75. #else 76. E long lseek P((int,long,int)); 77. E int write P((int,genericptr_t,unsigned)); 78. #ifdef MSDOS 79. E int close P((int)); 80. E int read P((int,genericptr_t,unsigned int)); 81. E int open P((const char *,int,...)); 82. E int dup2 P((int, int)); 83. E int setmode P((int,int)); 84. E int kbhit P((void)); 85. #endif 86. #endif /* ULTRIX */ 87. 88. #ifdef MSDOS 89. E int chdir P((char *)); 90. E char *getcwd P((char *,int)); 91. #endif 92. 93. /* both old & new versions of Ultrix want these, but real BSD does not */ 94. #ifdef ultrix 95. E void abort(); 96. E void bcopy(); 97. #endif 98. #ifdef MSDOS 99. E void abort P((void)); 100. E void _exit P((int)); 101. E int system P((const char *)); 102. #endif 103. 104. #ifdef SYSV 105. E char *memcpy(); 106. #endif 107. #ifdef MSDOS 108. E int memcmp P((char *,char *,unsigned int)); 109. E char *memcpy P((char *,char *,unsigned int)); 110. E char *memset P((char*,int,int)); 111. #endif 112. 113. #if defined(BSD) && defined(ultrix) /* i.e., old versions of Ultrix */ 114. E void sleep(); 115. #endif 116. #if defined(ULTRIX) || defined(SYSV) 117. E unsigned sleep(); 118. #endif 119. 120. E char *getenv P((const char *)); 121. E char *getlogin(); 122. E int getpid(); 123. 124. /*# string(s).h #*/ 125. 126. E char *strcpy P((char *,const char *)); 127. E char *strncpy P((char *,const char *,size_t)); 128. E char *strcat P((char *,const char *)); 129. E char *strncat P((char *,const char *,size_t)); 130. 131. #if defined(SYSV) || defined(MSDOS) 132. E char *strchr P((const char *,int)); 133. E char *strrchr P((const char *,int)); 134. #else /* BSD */ 135. E char *index P((const char *,int)); 136. E char *rindex P((const char *,int)); 137. #endif 138. 139. 140. E int strcmp P((const char *,const char *)); 141. E int strncmp P((const char *,const char *,size_t)); 142. #ifdef MSDOS 143. E size_t strlen P((const char *)); 144. #else 145. E int strlen(); 146. #endif 147. 148. /* Old varieties of BSD have char *sprintf(). 149. * Newer varieties of BSD have int sprintf() but allow for the old char *. 150. * Several varieties of SYSV and PC systems also have int sprintf(). 151. * If your system doesn't agree with this breakdown, you may want to change 152. * this declaration, especially if your machine treats the types differently. 153. */ 154. #if defined(BSD) || defined(ULTRIX) 155. #define OLD_SPRINTF 156. E char *sprintf(); 157. #else 158. E int sprintf P((char *,const char *,...)); 159. #endif 160. 161. #define Sprintf (void) sprintf 162. #define Strcat (void) strcat 163. #define Strcpy (void) strcpy 164. #define Printf (void) printf 165. 166. E int tgetent P((char *,char *)); 167. E int tgetnum P((char *)); 168. E int tgetflag P((char *)); 169. E char *tgetstr P((char *,char **)); 170. E char *tgoto P((char *,int,int)); 171. E void tputs P((char *,int,int (*)())); 172. 173. E genericptr_t malloc P((size_t)); 174. 175. /* time functions */ 176. 177. E struct tm *localtime P((const time_t *)); 178. 179. #if (defined(ULTRIX) || defined(SYSV) || defined(MSDOS)) && !defined(AMIGA) 180. E time_t time P((time_t *)); 181. #else 182. E long time P((time_t *)); 183. #endif /* ULTRIX */ 184. 185. #ifdef MSDOS 186. E int abs P((int)); 187. E int atoi P((char *)); 188. #endif 189. 190. #undef E 191. 192. #endif /* SYSTEM_H */