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Side by Side Diff: ipc/unix_domain_socket_util.h

Issue 2500263004: Remove ipc/unix_domain_socket_util.* (Closed)
Patch Set: rebase Created 4 years ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef IPC_UNIX_DOMAIN_SOCKET_UTIL_H_
6 #define IPC_UNIX_DOMAIN_SOCKET_UTIL_H_
7
8 #include <stddef.h>
9 #include <sys/types.h>
10
11 #include "ipc/ipc_export.h"
12
13 namespace base {
14 class FilePath;
15 } // namespace base
16
17 namespace IPC {
18
19 // Creates a UNIX-domain socket at |socket_name| and bind()s it, then listen()s
20 // on it. If successful, |server_listen_fd| will be set to the new file
21 // descriptor, and the function will return true. Otherwise returns false.
22 //
23 // This function also effectively performs `mkdir -p` on the dirname of
24 // |socket_name| to ensure that all the directories up to |socket_name| exist.
25 // As a result of which this function must be run on a thread that allows
26 // blocking I/O, e.g. the FILE thread in Chrome's browser process.
27 IPC_EXPORT bool CreateServerUnixDomainSocket(const base::FilePath& socket_name,
28 int* server_listen_fd);
29
30 // Opens a UNIX-domain socket at |socket_name| and connect()s to it. If
31 // successful, |client_socket| will be set to the new file descriptor, and the
32 // function will return true. Otherwise returns false.
33 IPC_EXPORT bool CreateClientUnixDomainSocket(const base::FilePath& socket_name,
34 int* client_socket);
35
36 // Gets the effective user ID of the other end of the UNIX-domain socket
37 // specified by |fd|. If successful, sets |peer_euid| to the uid, and returns
38 // true. Otherwise returns false.
39 IPC_EXPORT bool GetPeerEuid(int fd, uid_t* peer_euid);
40
41 // Checks that the process on the other end of the UNIX domain socket
42 // represented by |peer_fd| shares the same EUID as this process.
43 IPC_EXPORT bool IsPeerAuthorized(int peer_fd);
44
45 // Accepts a client attempting to connect to |server_listen_fd|, storing the
46 // new file descriptor for the connection in |server_socket|.
47 //
48 // Returns false if |server_listen_fd| encounters an unrecoverable error.
49 // Returns true if it's valid to keep listening on |server_listen_fd|. In this
50 // case, it's possible that a connection wasn't successfully established; then,
51 // |server_socket| will be set to -1.
52 IPC_EXPORT bool ServerOnConnect(int server_listen_fd,
53 int* server_socket);
54
55 // The maximum length of the name of a socket for MODE_NAMED_SERVER or
56 // MODE_NAMED_CLIENT if you want to pass in your own socket.
57 // The standard size on linux is 108, mac is 104. To maintain consistency
58 // across platforms we standardize on the smaller value.
59 static const size_t kMaxSocketNameLength = 104;
60
61 } // namespace IPC
62
63 #endif // IPC_UNIX_DOMAIN_SOCKET_UTIL_H_
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