Source:NetHack 3.4.0/version.c

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Below is the full text to version.c from the source code of NetHack 3.4.0. To link to a particular line, write [[NetHack 3.4.0/version.c#line123]], for example.

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1.    /*	SCCS Id: @(#)version.c	3.4	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 incompatibility 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*/