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annotate mtctest/sock_conn.c @ 13:c71801aa0039 default tip

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themwi-test-mtc: increase maximum play length
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 29 Oct 2024 00:06:28 +0000
parents e7b192a5dee5
children
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5
e7b192a5dee5 mtctest: initial import from old ThemWi
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1 /*
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2 * In this module we implement our connection to the MNCC daemon's
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3 * mtcall socket.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <sys/socket.h>
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8 #include <sys/un.h>
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9 #include <stdio.h>
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10 #include <stdint.h>
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11 #include <stdlib.h>
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12 #include "../include/mncc.h"
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13
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14 static char mtcall_socket_pathname[] = "/var/gsm/mtcall_socket";
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15
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16 int mtc_socket;
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17
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18 connect_mtc_socket()
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19 {
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20 struct sockaddr_un sa;
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21 unsigned sa_len;
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22 int rc;
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23
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24 mtc_socket = socket(AF_UNIX, SOCK_SEQPACKET, 0);
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25 if (mtc_socket < 0) {
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26 perror("socket(AF_UNIX, SOCK_SEQPACKET, 0)");
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27 exit(1);
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28 }
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29 fill_sockaddr_un(mtcall_socket_pathname, &sa, &sa_len);
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30 rc = connect(mtc_socket, (struct sockaddr *) &sa, sa_len);
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31 if (rc < 0) {
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32 perror(mtcall_socket_pathname);
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33 exit(1);
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34 }
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35 return(0);
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36 }
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37
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38 void
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39 mtc_socket_select()
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40 {
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41 union mncc_msg msg;
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42 int rc;
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43
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44 rc = recv(mtc_socket, &msg, sizeof msg, 0);
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45 if (rc < 0) {
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46 perror("read from socket");
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47 exit(1);
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48 }
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49 if (rc < 4) {
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50 fprintf(stderr, "short read from socket: %d bytes\n", rc);
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51 exit(1);
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52 }
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53 msg_from_mncc(&msg, rc);
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54 }
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55
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56 send_mncc_to_gsm(msg, msglen)
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57 union mncc_msg *msg;
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58 unsigned msglen;
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59 {
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60 return send(mtc_socket, msg, msglen, 0);
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61 }