Source:NetHack 3.3.0/version.c
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Below is the full text to version.c from the source code of NetHack 3.3.0. To link to a particular line, write [[NetHack 3.3.0/version.c#line123]], for example.
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1. /* SCCS Id: @(#)version.c 3.3 1999/12/01 */ 2. /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ 3. /* NetHack may be freely redistributed. See license for details. */ 4. 5. #include "hack.h" 6. #include "date.h" 7. /* 8. * All the references to the contents of patchlevel.h have been moved 9. * into makedefs.... 10. */ 11. #ifdef SHORT_FILENAMES 12. #include "patchlev.h" 13. #else 14. #include "patchlevel.h" 15. #endif 16. 17. /* fill and return the given buffer with the nethack version string */ 18. char * 19. getversionstring(buf) 20. char *buf; 21. { 22. return strcpy(buf, VERSION_ID); 23. } 24. 25. int 26. doversion() 27. { 28. char buf[BUFSZ]; 29. 30. pline(getversionstring(buf)); 31. return 0; 32. } 33. 34. int 35. doextversion() 36. { 37. display_file(OPTIONS_USED, TRUE); 38. return 0; 39. } 40. 41. #ifdef MICRO 42. boolean 43. comp_times(filetime) 44. long filetime; 45. { 46. return((boolean)(filetime < BUILD_TIME)); 47. } 48. #endif 49. 50. boolean 51. check_version(version_data, filename, complain) 52. struct version_info *version_data; 53. const char *filename; 54. boolean complain; 55. { 56. if ( 57. #ifdef VERSION_COMPATIBILITY 58. version_data->incarnation < VERSION_COMPATIBILITY || 59. version_data->incarnation > VERSION_NUMBER 60. #else 61. version_data->incarnation != VERSION_NUMBER 62. #endif 63. ) { 64. if (complain) 65. pline("Version mismatch for file \"%s\".", filename); 66. return FALSE; 67. } else if (version_data->feature_set != VERSION_FEATURES || 68. version_data->entity_count != VERSION_SANITY1 || 69. version_data->struct_sizes != VERSION_SANITY2) { 70. if (complain) 71. pline("Configuration incompatability for file \"%s\".", 72. filename); 73. return FALSE; 74. } 75. return TRUE; 76. } 77. 78. /* this used to be based on file date and somewhat OS-dependant, 79. but now examines the initial part of the file's contents */ 80. boolean 81. uptodate(fd, name) 82. int fd; 83. const char *name; 84. { 85. int rlen; 86. struct version_info vers_info; 87. boolean verbose = name ? TRUE : FALSE; 88. 89. rlen = read(fd, (genericptr_t) &vers_info, sizeof vers_info); 90. minit(); /* ZEROCOMP */ 91. if (rlen == 0) { 92. if (verbose) { 93. pline("File \"%s\" is empty?", name); 94. wait_synch(); 95. } 96. return FALSE; 97. } 98. if (!check_version(&vers_info, name, verbose)) { 99. if (verbose) wait_synch(); 100. return FALSE; 101. } 102. return TRUE; 103. } 104. 105. void 106. store_version(fd) 107. int fd; 108. { 109. static struct version_info version_data = { 110. VERSION_NUMBER, VERSION_FEATURES, 111. VERSION_SANITY1, VERSION_SANITY2 112. }; 113. 114. bufoff(fd); 115. /* bwrite() before bufon() uses plain write() */ 116. bwrite(fd,(genericptr_t)&version_data,(unsigned)(sizeof version_data)); 117. bufon(fd); 118. return; 119. } 120. 121. #ifdef AMIGA 122. const char amiga_version_string[] = AMIGA_VERSION_STRING; 123. #endif 124. 125. unsigned long 126. get_feature_notice_ver(str) 127. char *str; 128. { 129. char buf[BUFSZ]; 130. int ver_maj, ver_min, patch; 131. char *istr[3]; 132. int j = 0; 133. 134. if (!str) return 0L; 135. str = strcpy(buf, str); 136. istr[j] = str; 137. while (*str) { 138. if (*str == '.') { 139. *str++ = '\0'; 140. j++; 141. istr[j] = str; 142. if (j == 2) break; 143. } else if (index("0123456789", *str) != 0) { 144. str++; 145. } else 146. return 0L; 147. } 148. if (j != 2) return 0L; 149. ver_maj = atoi(istr[0]); 150. ver_min = atoi(istr[1]); 151. patch = atoi(istr[2]); 152. return FEATURE_NOTICE_VER(ver_maj,ver_min,patch); 153. /* macro from hack.h */ 154. } 155. 156. unsigned long 157. get_current_feature_ver() 158. { 159. return FEATURE_NOTICE_VER(VERSION_MAJOR,VERSION_MINOR,PATCHLEVEL); 160. } 161. 162. /*version.c*/