/* * * Copyright 2015, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #ifndef __GRPC_INTERNAL_IOMGR_SOCKADDR_UTILS_H__ #define __GRPC_INTERNAL_IOMGR_SOCKADDR_UTILS_H__ #include "src/core/iomgr/sockaddr.h" /* Returns true if addr is an IPv4-mapped IPv6 address within the ::ffff:0.0.0.0/96 range, or false otherwise. If addr4_out is non-NULL, the inner IPv4 address will be copied here when returning true. */ int grpc_sockaddr_is_v4mapped(const struct sockaddr *addr, struct sockaddr_in *addr4_out); /* If addr is an AF_INET address, writes the corresponding ::ffff:0.0.0.0/96 address to addr6_out and returns true. Otherwise returns false. */ int grpc_sockaddr_to_v4mapped(const struct sockaddr *addr, struct sockaddr_in6 *addr6_out); /* If addr is ::, 0.0.0.0, or ::ffff:0.0.0.0, writes the port number to *port_out (if not NULL) and returns true, otherwise returns false. */ int grpc_sockaddr_is_wildcard(const struct sockaddr *addr, int *port_out); /* Writes 0.0.0.0:port and [::]:port to separate sockaddrs. */ void grpc_sockaddr_make_wildcards(int port, struct sockaddr_in *wild4_out, struct sockaddr_in6 *wild6_out); /* Writes 0.0.0.0:port. */ void grpc_sockaddr_make_wildcard4(int port, struct sockaddr_in *wild_out); /* Writes [::]:port. */ void grpc_sockaddr_make_wildcard6(int port, struct sockaddr_in6 *wild_out); /* Return the IP port number of a sockaddr */ int grpc_sockaddr_get_port(const struct sockaddr *addr); /* Set IP port number of a sockaddr */ int grpc_sockaddr_set_port(const struct sockaddr *addr, int port); /* Converts a sockaddr into a newly-allocated human-readable string. Currently, only the AF_INET and AF_INET6 families are recognized. If the normalize flag is enabled, ::ffff:0.0.0.0/96 IPv6 addresses are displayed as plain IPv4. Usage is similar to gpr_asprintf: returns the number of bytes written (excluding the final '\0'), and *out points to a string which must later be destroyed using gpr_free(). In the unlikely event of an error, returns -1 and sets *out to NULL. The existing value of errno is always preserved. */ int grpc_sockaddr_to_string(char **out, const struct sockaddr *addr, int normalize); #endif /* __GRPC_INTERNAL_IOMGR_SOCKADDR_UTILS_H__ */