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   */
      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 release version (!= SONAME version)
      49   * @date_string: returns date
      50   *
      51   * Returns: release version code.
      52   */
      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  }