FreeCalypso > hg > themwi-system-sw
annotate utils/sip-udp-dump.c @ 33:2b072ad13de6
top Makefile: add mgw
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 09 Jul 2022 22:52:44 -0800 |
parents | 87c077b23996 |
children | 5995660dcbac |
rev | line source |
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sip-udp-dump utility written, compiles
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1 /* |
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2 * This debug utility binds to UDP port 5060 (SIP) and dumps any/all |
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3 * packets received at this port. A one-line summary is printed to |
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4 * stdout, and the full SIP INVITE packet content is written to a file. |
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5 */ |
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6 |
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7 #include <sys/types.h> |
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8 #include <sys/socket.h> |
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9 #include <netinet/in.h> |
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10 #include <arpa/inet.h> |
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11 #include <stdio.h> |
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12 #include <stdlib.h> |
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13 #include <string.h> |
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14 #include <strings.h> |
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15 #include <time.h> |
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16 #include <unistd.h> |
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17 |
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18 static int sock; |
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19 static FILE *logf; |
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20 static char dgram[4096]; |
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21 static unsigned dgram_len; |
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22 static struct sockaddr_in sin; |
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23 static time_t curtime; |
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24 |
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25 static void |
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26 log_full_packet() |
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27 { |
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28 fprintf(logf, "From %s:%u %u bytes %s", inet_ntoa(sin.sin_addr), |
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29 ntohs(sin.sin_port), dgram_len, ctime(&curtime)); |
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30 fwrite(dgram, 1, dgram_len, logf); |
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31 putc('\n', logf); |
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32 fflush(logf); |
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33 } |
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34 |
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35 static void |
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36 print_header_line() |
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37 { |
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38 char *cp; |
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39 |
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40 cp = index(dgram, '\n'); |
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41 if (cp) |
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42 *cp = '\0'; |
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43 puts(dgram); |
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44 } |
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45 |
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46 main(argc, argv) |
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47 char **argv; |
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48 { |
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49 int rc; |
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50 socklen_t addrlen; |
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51 |
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52 if (argc != 2) { |
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53 fprintf(stderr, "usage: %s logfile\n", argv[0]); |
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54 exit(1); |
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55 } |
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56 logf = fopen(argv[1], "a"); |
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57 if (!logf) { |
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58 perror(argv[1]); |
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59 exit(1); |
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60 } |
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61 sock = socket(AF_INET, SOCK_DGRAM, 0); |
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62 if (sock < 0) { |
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63 perror("socket"); |
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64 exit(1); |
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65 } |
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66 sin.sin_family = AF_INET; |
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67 sin.sin_addr.s_addr = INADDR_ANY; |
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68 sin.sin_port = htons(5060); |
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69 rc = bind(sock, (struct sockaddr *) &sin, sizeof sin); |
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70 if (rc < 0) |
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71 perror("bind"); |
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72 for (;;) { |
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73 addrlen = sizeof sin; |
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74 rc = recvfrom(sock, dgram, sizeof(dgram) - 1, 0, |
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75 (struct sockaddr *) &sin, &addrlen); |
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76 if (rc < 0) { |
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77 perror("recvfrom"); |
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78 exit(1); |
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79 } |
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80 time(&curtime); |
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81 dgram_len = rc; |
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82 dgram[dgram_len] = '\0'; |
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83 log_full_packet(); |
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84 print_header_line(); |
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85 } |
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86 } |