FreeCalypso > hg > freecalypso-tools
annotate rfcal/cmu200/socket.c @ 231:a58a7bbc0618
CHANGES: first changes since fc-host-tools-r5
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 03 Aug 2017 03:21:39 +0000 |
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1 /* |
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2 * This module handles the local UNIX domain socket interface for fc-cmu200d. |
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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 |
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14 int listener, activesock; |
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15 |
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16 extern char *bind_socket_pathname; |
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17 |
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18 create_listener_socket() |
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19 { |
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20 /* local socket binding voodoo copied from osmocon */ |
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21 struct sockaddr_un local; |
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22 unsigned int namelen; |
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23 int rc; |
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24 |
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25 listener = socket(AF_UNIX, SOCK_STREAM, 0); |
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26 if (listener < 0) { |
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27 perror("socket(AF_UNIX, SOCK_STREAM, 0)"); |
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28 exit(1); |
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29 } |
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30 |
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31 local.sun_family = AF_UNIX; |
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32 strncpy(local.sun_path, bind_socket_pathname, sizeof(local.sun_path)); |
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33 local.sun_path[sizeof(local.sun_path) - 1] = '\0'; |
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34 unlink(local.sun_path); |
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35 |
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36 /* we use the same magic that X11 uses in Xtranssock.c for |
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37 * calculating the proper length of the sockaddr */ |
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38 #if defined(BSD44SOCKETS) || defined(__UNIXWARE__) |
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39 local.sun_len = strlen(local.sun_path); |
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40 #endif |
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41 #if defined(BSD44SOCKETS) || defined(SUN_LEN) |
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42 namelen = SUN_LEN(&local); |
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43 #else |
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44 namelen = strlen(local.sun_path) + |
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45 offsetof(struct sockaddr_un, sun_path) + 1; |
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46 #endif |
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47 |
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48 rc = bind(listener, (struct sockaddr *) &local, namelen); |
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49 if (rc != 0) { |
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50 perror("bind on local socket"); |
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51 exit(1); |
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52 } |
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53 rc = listen(listener, 1); |
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54 if (rc != 0) { |
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55 perror("listen"); |
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56 exit(1); |
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57 } |
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58 return(0); |
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59 } |
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60 |
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61 get_socket_connection() |
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62 { |
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63 struct sockaddr_un un_addr; |
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64 socklen_t len; |
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65 |
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66 len = sizeof(un_addr); |
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67 activesock = accept(listener, (struct sockaddr *) &un_addr, &len); |
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68 if (activesock < 0) { |
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69 perror("socket accept"); |
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70 exit(1); |
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71 } |
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72 printf("Accepted local socket connection\n"); |
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73 return(0); |
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74 } |
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75 |
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76 send_socket_response(str) |
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77 char *str; |
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78 { |
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79 printf("Msg to client: %s", str); |
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80 write(activesock, str, strlen(str)); |
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81 } |