1 /*
2  * version.c --- Return the version of the blkid library
3  *
4  * Copyright (C) 2004 Theodore Ts'o.
5  *
6  * %Begin-Header%
7  * This file may be redistributed under the terms of the GNU Lesser General
8  * Public License.
9  * %End-Header%
10  */
11 
12 #ifdef HAVE_UNISTD_H
13 #include <unistd.h>
14 #endif
15 #include <string.h>
16 #include <stdio.h>
17 #include <ctype.h>
18 
19 #include "blkid.h"
20 
21 /* LIBBLKID_* defined in the global config.h */
22 static const char *lib_version = LIBBLKID_VERSION;	/* release version */
23 static const char *lib_date = LIBBLKID_DATE;
24 
25 /**
26  * blkid_parse_version_string:
27  * @ver_string:  version string (e.g. "2.16.0")
28  *
29  * Returns: release version code.
30  */
blkid_parse_version_string(const char * ver_string)31 int blkid_parse_version_string(const char *ver_string)
32 {
33 	const char *cp;
34 	int version = 0;
35 
36 	for (cp = ver_string; *cp; cp++) {
37 		if (*cp == '.')
38 			continue;
39 		if (!isdigit(*cp))
40 			break;
41 		version = (version * 10) + (*cp - '0');
42 	}
43 	return version;
44 }
45 
46 /**
47  * blkid_get_library_version:
48  * @ver_string: returns relese version (!= SONAME version)
49  * @date_string: returns date
50  *
51  * Returns: release version code.
52  */
blkid_get_library_version(const char ** ver_string,const char ** date_string)53 int blkid_get_library_version(const char **ver_string,
54 			       const char **date_string)
55 {
56 	if (ver_string)
57 		*ver_string = lib_version;
58 	if (date_string)
59 		*date_string = lib_date;
60 
61 	return blkid_parse_version_string(lib_version);
62 }
63