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annotate rvinterf/tmsh/oneshot.c @ 965:2969032bdfac

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fcup-smsend[mult]: fix buglet in K&R C NULL pointer passing The only 100% safe way to pass a NULL pointer as a function argument in K&R C is to cast 0 to a pointer type; failing to do so may cause mysterious bugs (invalid stack frames or garbage in argument registers) on 64-bit machines. This issue has already been fixed in most of FC host tools, but I just found some missed spots: passing of NULL UDH to PDU encoding functions in fcup-smsend[mult] in the case of single (not concatenated) SMS.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 01 Sep 2023 07:33:51 +0000
parents 27c41e4b21ae
children
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1 /*
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2 * This module implements the one-shot mode of operation for fc-tmsh.
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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/errno.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <unistd.h>
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10 #include "exitcodes.h"
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11
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12 extern int oneshot_nowait;
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13 extern int sock;
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14 extern int got_tm_response;
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15
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16 oneshot_command(argc, argv)
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17 char **argv;
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18 {
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19 fd_set fds;
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20 int rc;
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21
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22 if (!oneshot_nowait)
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23 init(); /* to catch the response properly */
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24 rc = dispatch_oneshot_cmd(argc, argv);
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25 if (rc)
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26 exit(rc);
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27 if (oneshot_nowait)
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28 exit(0);
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29 /* wait for response */
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30 for (;;) {
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31 FD_ZERO(&fds);
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32 FD_SET(sock, &fds);
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33 rc = select(sock+1, &fds, 0, 0, 0);
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34 if (rc < 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 exit(ERROR_UNIX);
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39 }
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40 if (FD_ISSET(sock, &fds))
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41 handle_rvinterf_input();
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42 if (got_tm_response)
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43 exit(0);
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44 }
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45 }