annotate sip-manual-out/disc_cmd.c @ 171:4f1f3f799295

doc/Codec-library-depend: article written
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 21 Nov 2022 01:01:39 -0800
parents a36b731bfef9
children f8a33603288f
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a36b731bfef9 sip-manual-out: implement sending BYE and CANCEL
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1 /*
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2 * In this module we implement user-driven sending of CANCEL and BYE
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3 * disconnection requests.
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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 <netinet/in.h>
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9 #include <stdio.h>
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10 #include <stdlib.h>
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11 #include <string.h>
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12 #include <strings.h>
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13 #include "../libsip/out_msg.h"
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14
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15 extern struct sockaddr_in sip_dest_sin;
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16 extern char to_uri[];
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17
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18 send_cancel_req()
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19 {
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20 struct sip_msg_out msg;
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21 int rc;
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22
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23 rc = start_request_out_msg(&msg, "CANCEL", to_uri);
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24 if (rc < 0) {
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25 msg_size_err: fprintf(stderr, "composing CANCEL message: size error\n");
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26 return(-1);
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27 }
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28 rc = add_req_boilerplate(&msg, "1 CANCEL", 0);
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29 if (rc < 0)
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30 goto msg_size_err;
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31 out_msg_finish(&msg);
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32 sip_tx_packet(&msg, &sip_dest_sin);
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33 return(0);
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34 }
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35
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36 send_bye_req()
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37 {
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38 struct sip_msg_out msg;
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39 int rc;
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40
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41 rc = start_request_out_msg(&msg, "BYE", to_uri);
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42 if (rc < 0) {
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43 msg_size_err: fprintf(stderr, "composing BYE message: size error\n");
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44 return(-1);
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45 }
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46 rc = add_req_boilerplate(&msg, "2 BYE", 1);
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47 if (rc < 0)
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48 goto msg_size_err;
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49 out_msg_finish(&msg);
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50 sip_tx_packet(&msg, &sip_dest_sin);
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51 return(0);
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52 }
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53
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54 void
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55 select_stdin()
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56 {
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57 char buf[256], *cp;
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58
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59 fgets(buf, sizeof buf, stdin);
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60 cp = index(buf, '\n');
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61 if (cp) {
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62 while (cp > buf && isspace(cp[-1]))
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63 cp--;
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64 *cp = '\0';
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65 }
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66 for (cp = buf; isspace(*cp); cp++)
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67 ;
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68 if (!*cp)
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69 return;
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70 if (!strcmp(cp, "b") || !strcasecmp(cp, "bye"))
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71 send_bye_req();
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72 else if (!strcmp(cp, "c") || !strcasecmp(cp, "cancel"))
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73 send_cancel_req();
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74 else
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75 fprintf(stderr, "error: non-understood stdin command\n");
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76 }