1 /* version.c version handling
2 * Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
3 * Copyright (C) 2002 Simon Josefsson
5 * This file is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This file is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this file; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 /* This file is based on src/global.c from Werner Koch's libgcrypt */
31 parse_version_number( const char *s, int *number )
35 if( *s == '0' && isdigit(s[1]) )
36 return NULL; /* leading zeros are not allowed */
37 for ( ; isdigit(*s); s++ ) {
42 return val < 0? NULL : s;
47 parse_version_string( const char *s, int *major, int *minor, int *micro )
49 s = parse_version_number( s, major );
53 s = parse_version_number( s, minor );
57 s = parse_version_number( s, micro );
60 return s; /* patchlevel */
64 * Check that the the version of the library is at minimum the requested one
65 * and return the version string; return NULL if the condition is not
66 * satisfied. If a NULL is passed to this function, no check is done,
67 * but the version string is simply returned.
70 ntlm_check_version( const char *req_version )
72 const char *ver = VERSION;
73 int my_major, my_minor, my_micro;
74 int rq_major, rq_minor, rq_micro;
75 const char *my_plvl, *rq_plvl;
80 my_plvl = parse_version_string( ver, &my_major, &my_minor, &my_micro );
82 return NULL; /* very strange our own version is bogus */
83 rq_plvl = parse_version_string( req_version, &rq_major, &rq_minor,
86 return NULL; /* req version string is invalid */
88 if ( my_major > rq_major
89 || (my_major == rq_major && my_minor > rq_minor)
90 || (my_major == rq_major && my_minor == rq_minor
91 && my_micro > rq_micro)
92 || (my_major == rq_major && my_minor == rq_minor
93 && my_micro == rq_micro
94 && strcmp( my_plvl, rq_plvl ) >= 0) ) {