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annotate loadtools/tpinterfb.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 8d7dcfd9df53
children
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1 /*
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2 * This module contains functions for binary (as opposed to our usual ASCII)
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3 * interfacing to loadagent.
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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/time.h>
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8 #include <sys/errno.h>
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9 #include <stdio.h>
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10 #include <string.h>
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11 #include <strings.h>
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12 #include <stdlib.h>
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13 #include <unistd.h>
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14
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15 extern int errno;
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16
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17 extern int target_fd;
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18
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19 collect_binblock_from_target(buf, expect_len, timeout)
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20 u_char *buf;
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21 unsigned expect_len;
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22 {
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23 fd_set fds;
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24 struct timeval tv;
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25 unsigned rcvd;
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26 int cc;
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27
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28 for (rcvd = 0; rcvd < expect_len; ) {
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29 FD_ZERO(&fds);
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30 FD_SET(target_fd, &fds);
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31 tv.tv_sec = timeout;
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32 tv.tv_usec = 0;
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33 cc = select(target_fd+1, &fds, NULL, NULL, &tv);
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34 if (cc < 0) {
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35 if (errno == EINTR)
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36 continue;
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37 perror("select");
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38 return(-1);
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39 }
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40 if (cc < 1) {
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41 fprintf(stderr,
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42 "error: timeout waiting for binary block\n");
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43 return(-1);
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44 }
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45 cc = read(target_fd, buf + rcvd, expect_len - rcvd);
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46 if (cc <= 0) {
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47 perror("read after successful select");
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48 return(-1);
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49 }
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50 rcvd += cc;
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51 }
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52 return(0);
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53 }