FreeCalypso > hg > freecalypso-tools

annotate rvinterf/old/before-rvinterf/rvtdump_tx.c @ 1011:6d9b10633f10 default tip

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etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +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 }