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Diffstat (limited to 'libmailutils/cidr/match.c')
-rw-r--r-- | libmailutils/cidr/match.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/libmailutils/cidr/match.c b/libmailutils/cidr/match.c new file mode 100644 index 000000000..dff9194ee --- /dev/null +++ b/libmailutils/cidr/match.c @@ -0,0 +1,38 @@ +/* GNU Mailutils -- a suite of utilities for electronic mail + Copyright (C) 2011 Free Software Foundation, Inc. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General + Public License along with this library. If not, see + <http://www.gnu.org/licenses/>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif +#include <mailutils/cidr.h> +#include <mailutils/errno.h> + +int +mu_cidr_match (struct mu_cidr *a, struct mu_cidr *b) +{ + int i; + + if (a->family != b->family) + return 1; + for (i = 0; i < a->len; i++) + { + if (a->address[i] != (b->address[i] & a->netmask[i])) + return 1; + } + return 0; +} + |