FreeCalypso > hg > freecalypso-tools

annotate rvinterf/old/before-rvinterf/rvtdump_tx.c @ 302:e05563f0dfcf

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doc/Compal-calibration: Rx calchan ranges documented
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 19 Nov 2017 23:10:07 +0000
parents e7502631a0f9
children
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1 /*
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2 * This module contains the implementation of the Tx extension to rvtdump
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3 */
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4
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5 #include <sys/types.h>
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6 #include <sys/socket.h>
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7 #include <sys/un.h>
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8 #include <stdio.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <stdlib.h>
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12 #include <unistd.h>
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13 #include "txpkt.h"
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14
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15 static char sockpath[] = "/tmp/rvt_send_socket";
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16
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17 int sendsock_fd;
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18 u_char sendsock_pkt[MAX_PKT_TO_TARGET];
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19 int sendsock_pktlen;
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20
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21 create_send_socket()
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22 {
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23 /* local socket binding voodoo copied from osmocon */
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24 struct sockaddr_un local;
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25 unsigned int namelen;
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26 int rc;
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27
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28 sendsock_fd = socket(AF_UNIX, SOCK_DGRAM, 0);
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29 if (sendsock_fd < 0) {
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30 perror("socket(AF_UNIX, SOCK_DGRAM, 0)");
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31 exit(1);
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32 }
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33
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34 local.sun_family = AF_UNIX;
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35 strncpy(local.sun_path, sockpath, sizeof(local.sun_path));
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36 local.sun_path[sizeof(local.sun_path) - 1] = '\0';
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37 unlink(local.sun_path);
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38
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39 /* we use the same magic that X11 uses in Xtranssock.c for
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40 * calculating the proper length of the sockaddr */
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41 #if defined(BSD44SOCKETS) || defined(__UNIXWARE__)
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42 local.sun_len = strlen(local.sun_path);
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43 #endif
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44 #if defined(BSD44SOCKETS) || defined(SUN_LEN)
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45 namelen = SUN_LEN(&local);
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46 #else
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47 namelen = strlen(local.sun_path) +
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48 offsetof(struct sockaddr_un, sun_path);
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49 #endif
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50
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51 rc = bind(sendsock_fd, (struct sockaddr *) &local, namelen);
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52 if (rc != 0) {
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53 perror("bind on local dgram socket");
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54 exit(1);
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55 }
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56
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57 return(0);
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58 }
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59
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60 handle_sendsock()
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61 {
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62 sendsock_pktlen = recv(sendsock_fd, sendsock_pkt, MAX_PKT_TO_TARGET, 0);
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63 if (sendsock_pktlen <= 0) {
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64 fprintf(stderr, "return value from recv on socket: %d\n",
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65 sendsock_pktlen);
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66 exit(1);
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67 }
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68 send_pkt_to_target(sendsock_pkt, sendsock_pktlen);
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69 log_sent_packet(sendsock_pkt, sendsock_pktlen);
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70 }