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Commit | Line | Data |
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e2770979 JK |
1 | #include "cache.h" |
2 | #include "unix-socket.h" | |
3 | ||
4 | static int unix_stream_socket(void) | |
5 | { | |
6 | int fd = socket(AF_UNIX, SOCK_STREAM, 0); | |
7 | if (fd < 0) | |
8 | die_errno("unable to create socket"); | |
9 | return fd; | |
10 | } | |
11 | ||
12 | static void unix_sockaddr_init(struct sockaddr_un *sa, const char *path) | |
13 | { | |
14 | int size = strlen(path) + 1; | |
15 | if (size > sizeof(sa->sun_path)) | |
16 | die("socket path is too long to fit in sockaddr"); | |
17 | memset(sa, 0, sizeof(*sa)); | |
18 | sa->sun_family = AF_UNIX; | |
19 | memcpy(sa->sun_path, path, size); | |
20 | } | |
21 | ||
22 | int unix_stream_connect(const char *path) | |
23 | { | |
24 | int fd; | |
25 | struct sockaddr_un sa; | |
26 | ||
27 | unix_sockaddr_init(&sa, path); | |
28 | fd = unix_stream_socket(); | |
29 | if (connect(fd, (struct sockaddr *)&sa, sizeof(sa)) < 0) { | |
30 | close(fd); | |
31 | return -1; | |
32 | } | |
33 | return fd; | |
34 | } | |
35 | ||
36 | int unix_stream_listen(const char *path) | |
37 | { | |
38 | int fd; | |
39 | struct sockaddr_un sa; | |
40 | ||
41 | unix_sockaddr_init(&sa, path); | |
42 | fd = unix_stream_socket(); | |
43 | ||
44 | unlink(path); | |
45 | if (bind(fd, (struct sockaddr *)&sa, sizeof(sa)) < 0) { | |
46 | close(fd); | |
47 | return -1; | |
48 | } | |
49 | ||
50 | if (listen(fd, 5) < 0) { | |
51 | close(fd); | |
52 | return -1; | |
53 | } | |
54 | ||
55 | return fd; | |
56 | } |