| /* |
| * |
| * Copyright 2016, 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. |
| * |
| */ |
| |
| #include "src/core/lib/iomgr/unix_sockets_posix.h" |
| |
| #ifdef GPR_HAVE_UNIX_SOCKET |
| |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <sys/un.h> |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| |
| void grpc_create_socketpair_if_unix(int sv[2]) { |
| GPR_ASSERT(socketpair(AF_UNIX, SOCK_STREAM, 0, sv) == 0); |
| } |
| |
| grpc_error *grpc_resolve_unix_domain_address(const char *name, |
| grpc_resolved_addresses **addrs) { |
| struct sockaddr_un *un; |
| |
| *addrs = gpr_malloc(sizeof(grpc_resolved_addresses)); |
| (*addrs)->naddrs = 1; |
| (*addrs)->addrs = gpr_malloc(sizeof(grpc_resolved_address)); |
| un = (struct sockaddr_un *)(*addrs)->addrs->addr; |
| un->sun_family = AF_UNIX; |
| strcpy(un->sun_path, name); |
| (*addrs)->addrs->len = strlen(un->sun_path) + sizeof(un->sun_family) + 1; |
| return GRPC_ERROR_NONE; |
| } |
| |
| int grpc_is_unix_socket(const struct sockaddr *addr) { |
| return addr->sa_family == AF_UNIX; |
| } |
| |
| void grpc_unlink_if_unix_domain_socket(const struct sockaddr *addr) { |
| if (addr->sa_family != AF_UNIX) { |
| return; |
| } |
| struct sockaddr_un *un = (struct sockaddr_un *)addr; |
| struct stat st; |
| |
| if (stat(un->sun_path, &st) == 0 && (st.st_mode & S_IFMT) == S_IFSOCK) { |
| unlink(un->sun_path); |
| } |
| } |
| |
| char *grpc_sockaddr_to_uri_unix_if_possible(const struct sockaddr *addr) { |
| if (addr->sa_family != AF_UNIX) { |
| return NULL; |
| } |
| |
| char *result; |
| gpr_asprintf(&result, "unix:%s", ((struct sockaddr_un *)addr)->sun_path); |
| return result; |
| } |
| |
| #endif |