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fbc7337c MW |
1 | /* -*-c-*- |
2 | * | |
3 | * Test the file-descriptor passing code | |
4 | * | |
5 | * (c) 2018 Straylight/Edgeware | |
6 | */ | |
7 | ||
8 | /*----- Licensing notice --------------------------------------------------* | |
9 | * | |
10 | * This file is part of the mLib utilities library. | |
11 | * | |
12 | * mLib is free software: you can redistribute it and/or modify it under | |
13 | * the terms of the GNU Library General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or (at | |
15 | * your option) any later version. | |
16 | * | |
17 | * mLib is distributed in the hope that it will be useful, but WITHOUT | |
18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public | |
20 | * License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU Library General Public | |
23 | * License along with mLib. If not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
25 | * USA. | |
26 | */ | |
27 | ||
28 | /*----- Header files ------------------------------------------------------*/ | |
29 | ||
30 | #include <errno.h> | |
31 | #include <stdio.h> | |
32 | #include <stdlib.h> | |
33 | #include <string.h> | |
34 | ||
35 | #include <sys/socket.h> | |
36 | #include <sys/un.h> | |
37 | ||
38 | #include "fdpass.h" | |
39 | #include "quis.h" | |
40 | #include "report.h" | |
41 | ||
42 | #undef sun | |
43 | ||
44 | /*----- Main code ---------------------------------------------------------*/ | |
45 | ||
46 | static void set_unix_addr(struct sockaddr_un *sun, const char *path) | |
47 | { | |
48 | if (strlen(path) >= sizeof(sun->sun_path)) | |
49 | die(2, "pathname `%s' too long", path); | |
50 | sun->sun_family = AF_UNIX; | |
51 | strcpy(sun->sun_path, path); | |
52 | } | |
53 | ||
54 | const char sockmsg[] = "socket message", pipemsg[] = "pipe message"; | |
55 | ||
56 | int main(int argc, char *argv[]) | |
57 | { | |
58 | struct sockaddr_un sun; | |
59 | char buf[16]; | |
60 | int lsk, sk, fd, pfd[2]; | |
61 | socklen_t len; | |
62 | ssize_t n; | |
63 | ||
64 | ego(argv[0]); | |
65 | ||
66 | if (argc == 3 && strcmp(argv[1], "server") == 0) { | |
67 | set_unix_addr(&sun, argv[2]); | |
68 | lsk = socket(PF_UNIX, SOCK_STREAM, 0); | |
69 | if (lsk < 0) die(2, "socket: %s", strerror(errno)); | |
70 | if (bind(lsk, (struct sockaddr *)&sun, sizeof(sun))) | |
71 | die(2, "bind: %s", strerror(errno)); | |
72 | if (listen(lsk, 5)) die(2, "listen: %s", strerror(errno)); | |
73 | len = sizeof(sun); sk = accept(lsk, (struct sockaddr *)&sun, &len); | |
74 | if (sk < 0) die(2, "accept: %s", strerror(errno)); | |
75 | close(lsk); | |
76 | n = fdpass_recv(sk, &fd, buf, sizeof(buf)); | |
77 | if (n < 0) die(2, "fdrecv: %s", strerror(errno)); | |
78 | close(sk); | |
79 | if (fd == -1) die(2, "no fd found"); | |
80 | if (n != sizeof(sockmsg) || strcmp(buf, sockmsg) != 0) | |
81 | die(2, "socket message mismatch (found `%.*s')", (int)n, buf); | |
82 | n = read(fd, buf, sizeof(buf)); | |
83 | if (n < 0) die(2, "read: %s", strerror(errno)); | |
84 | if (n != sizeof(pipemsg) || strcmp(buf, pipemsg) != 0) | |
85 | die(2, "pipe message mismatch (found `%.*s')", (int)n, buf); | |
86 | close(fd); | |
87 | } else if (argc == 3 && strcmp(argv[1], "client") == 0) { | |
88 | set_unix_addr(&sun, argv[2]); | |
89 | if (pipe(pfd)) die(2, "pipe: %s", strerror(errno)); | |
90 | sk = socket(PF_UNIX, SOCK_STREAM, 0); | |
91 | if (sk < 0) die(2, "socket: %s", strerror(errno)); | |
92 | if (connect(sk, (struct sockaddr *)&sun, sizeof(sun))) | |
93 | die(2, "connect: %s", strerror(errno)); | |
94 | if (fdpass_send(sk, pfd[0], sockmsg, sizeof(sockmsg)) < 0) | |
95 | die(2, "fdsend: %s", strerror(errno)); | |
96 | close(pfd[0]); | |
97 | close(sk); | |
98 | if (write(pfd[1], pipemsg, sizeof(pipemsg)) < 0) | |
99 | die(2, "write: %s", strerror(errno)); | |
100 | close(pfd[1]); | |
101 | } else { | |
102 | pquis(stderr, "usage: $ client|server SOCK\n"); | |
103 | exit(2); | |
104 | } | |
105 | return (0); | |
106 | } | |
107 | ||
108 | /*----- That's all, folks -------------------------------------------------*/ |