FreeCalypso > hg > fc-rfcal-tools
annotate cmu200/session.c @ 105:44c6a2b4d40a
INSTALL: we need fc-host-tools-r6 or later for ERROR_RFFAIL
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 09 Dec 2017 07:07:19 +0000 |
parents | b552e8d86474 |
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1 /* |
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2 * This module contains the code that handles a single local socket |
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3 * connection session. |
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4 */ |
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5 |
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6 #include <ctype.h> |
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7 #include <stdio.h> |
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8 #include <stdlib.h> |
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9 #include <string.h> |
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10 #include <strings.h> |
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11 |
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12 extern int activesock; |
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13 |
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14 #define MAX_FIELDS 10 |
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15 |
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16 char client_cmd[256], *client_cmd_fields[MAX_FIELDS+1]; |
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17 int client_cmd_nfields; |
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18 |
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19 parse_cmd_into_fields() |
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20 { |
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21 char *cp; |
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22 |
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23 client_cmd_nfields = 0; |
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24 for (cp = client_cmd; ; ) { |
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25 while (isspace(*cp)) |
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26 cp++; |
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27 if (*cp == '\0') |
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28 break; |
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29 if (client_cmd_nfields >= MAX_FIELDS) { |
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30 send_socket_response("-Command has too many fields\n"); |
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31 return(1); |
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32 } |
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33 client_cmd_fields[client_cmd_nfields++] = cp; |
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34 while (*cp && !isspace(*cp)) |
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35 cp++; |
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36 if (*cp) |
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37 *cp++ = '\0'; |
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38 } |
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39 client_cmd_fields[client_cmd_nfields] = 0; |
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40 return(0); |
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41 } |
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42 |
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43 handle_command() |
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44 { |
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45 char readbuf[256]; |
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46 int cc, pos, rc; |
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47 |
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48 for (pos = 0; ; ) { |
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49 cc = read(activesock, readbuf, sizeof readbuf); |
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50 if (cc <= 0) { |
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51 printf("Client program closed connection\n"); |
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52 return(1); |
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53 } |
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54 if (pos + cc > sizeof client_cmd) { |
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55 send_socket_response("-Command too long\n"); |
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56 return(1); |
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57 } |
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58 bcopy(readbuf, client_cmd + pos, cc); |
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59 pos += cc; |
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60 if (client_cmd[pos-1] == '\n') |
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61 break; |
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62 } |
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63 client_cmd[pos-1] = '\0'; |
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64 printf("Client command: %s\n", client_cmd); |
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65 rc = parse_cmd_into_fields(); |
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66 if (rc) |
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67 return(0); |
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68 if (!client_cmd_nfields) { |
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69 send_socket_response("+Empty command OK\n"); |
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70 return(0); |
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71 } |
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72 return dispatch_client_command(); |
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73 } |
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74 |
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75 handle_session() |
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76 { |
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77 int rc; |
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78 |
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79 cmu200_session_begin(); |
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80 send_socket_response("+CMU200 interface daemon ready\n"); |
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81 for (;;) { |
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82 rc = handle_command(); |
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83 if (rc) |
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84 break; |
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85 } |
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86 close(activesock); |
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87 stop_signal_gen(); |
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88 } |