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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.

Warning! This is the source code from an old release. For the latest release, see Source code

The NetHack General Public License applies to screenshots, source code and other content from NetHack.
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*/

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