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Diffstat (limited to 'libmailutils/cidr/tosa.c')
-rw-r--r--libmailutils/cidr/tosa.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/libmailutils/cidr/tosa.c b/libmailutils/cidr/tosa.c
new file mode 100644
index 000000000..c14a995da
--- /dev/null
+++ b/libmailutils/cidr/tosa.c
@@ -0,0 +1,78 @@
+/* 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 <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <string.h>
+#include <stdlib.h>
+#include <mailutils/cidr.h>
+#include <mailutils/errno.h>
+
+int
+mu_cidr_to_sockaddr (struct mu_cidr *cidr, struct sockaddr **psa)
+{
+ union
+ {
+ struct sockaddr sa;
+ struct sockaddr_in s_in;
+#ifdef MAILUTILS_IPV6
+ struct sockaddr_in6 s_in6;
+#endif
+ } addr;
+ struct sockaddr *sa;
+ int socklen;
+ int i;
+
+ memset (&addr, 0, sizeof (addr));
+ addr.sa.sa_family = cidr->family;
+ switch (cidr->family)
+ {
+ case AF_INET:
+ socklen = sizeof (addr.s_in);
+ for (i = 0; i < cidr->len; i++)
+ {
+ addr.s_in.sin_addr.s_addr <<= 8;
+ addr.s_in.sin_addr.s_addr |= cidr->address[i];
+ }
+ break;
+
+#ifdef MAILUTILS_IPV6
+ case AF_INET6:
+ socklen = sizeof (addr.s_in6);
+ memcpy (&addr.s_in6.sin6_addr, cidr->address, 16);
+ break;
+#endif
+
+ default:
+ return MU_ERR_FAMILY;
+ }
+
+ sa = malloc (socklen);
+ if (!sa)
+ return ENOMEM;
+ memcpy (sa, &addr, socklen);
+ *psa = sa;
+ return 0;
+}
+

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