1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/*
*
* Copyright 2016 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "src/core/lib/iomgr/port.h"
#ifdef GRPC_HAVE_UNIX_SOCKET
#include "src/core/lib/iomgr/sockaddr.h"
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/un.h>
#include "src/core/lib/iomgr/unix_sockets_posix.h"
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/useful.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;
if (strlen(name) > GPR_ARRAY_SIZE(((struct sockaddr_un *)0)->sun_path) - 1) {
char *err_msg;
grpc_error *err;
gpr_asprintf(&err_msg,
"Path name should not have more than %" PRIuPTR " characters.",
GPR_ARRAY_SIZE(un->sun_path) - 1);
err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(err_msg);
gpr_free(err_msg);
return err;
}
*addrs =
(grpc_resolved_addresses *)gpr_malloc(sizeof(grpc_resolved_addresses));
(*addrs)->naddrs = 1;
(*addrs)->addrs =
(grpc_resolved_address *)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 grpc_resolved_address *resolved_addr) {
const struct sockaddr *addr = (const struct sockaddr *)resolved_addr->addr;
return addr->sa_family == AF_UNIX;
}
void grpc_unlink_if_unix_domain_socket(
const grpc_resolved_address *resolved_addr) {
const struct sockaddr *addr = (const struct sockaddr *)resolved_addr->addr;
if (addr->sa_family != AF_UNIX) {
return;
}
struct sockaddr_un *un = (struct sockaddr_un *)resolved_addr->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 grpc_resolved_address *resolved_addr) {
const struct sockaddr *addr = (const struct sockaddr *)resolved_addr->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
|
