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nuclear@0
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1 #include <stdio.h>
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nuclear@0
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2 #include <stdlib.h>
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nuclear@0
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3 #include <string.h>
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nuclear@7
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4 #include <errno.h>
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nuclear@3
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5 #include <signal.h>
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nuclear@7
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6 #include "tinyweb.h"
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nuclear@1
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7
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nuclear@7
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8 int parse_args(int argc, char **argv);
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nuclear@3
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9 void sighandler(int s);
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nuclear@5
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10
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nuclear@5
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11
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nuclear@0
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12 int main(int argc, char **argv)
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nuclear@0
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13 {
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nuclear@7
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14 int *sockets, num_sockets, sockets_arr_size = 0;
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nuclear@7
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15
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nuclear@1
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16 if(parse_args(argc, argv) == -1) {
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nuclear@1
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17 return 1;
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nuclear@1
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18 }
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nuclear@1
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19
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nuclear@3
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20 signal(SIGINT, sighandler);
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nuclear@3
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21 signal(SIGTERM, sighandler);
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nuclear@3
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22 signal(SIGQUIT, sighandler);
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nuclear@3
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23
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nuclear@7
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24 tw_start();
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nuclear@0
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25
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nuclear@0
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26 for(;;) {
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nuclear@7
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27 int i;
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nuclear@0
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28 fd_set rdset;
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nuclear@0
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29
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nuclear@7
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30 num_sockets = tw_get_sockets(0);
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nuclear@7
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31 if(num_sockets > sockets_arr_size) {
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nuclear@7
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32 int newsz = sockets_arr_size ? sockets_arr_size * 2 : 16;
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nuclear@7
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33 int *newarr = realloc(sockets, newsz * sizeof *sockets);
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nuclear@7
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34 if(!newarr) {
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nuclear@7
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35 fprintf(stderr, "failed to allocate sockets array\n");
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nuclear@7
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36 tw_stop();
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nuclear@7
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37 return 1;
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nuclear@7
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38 }
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nuclear@7
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39 sockets = newarr;
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nuclear@7
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40 sockets_arr_size = newsz;
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nuclear@7
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41 }
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nuclear@7
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42 tw_get_sockets(sockets);
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nuclear@7
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43
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nuclear@0
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44 FD_ZERO(&rdset);
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nuclear@7
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45 for(i=0; i<num_sockets; i++) {
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nuclear@7
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46 FD_SET(sockets[i], &rdset);
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nuclear@0
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47 }
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nuclear@0
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48
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nuclear@7
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49 while(select(tw_get_maxfd() + 1, &rdset, 0, 0, 0) == -1 && errno == EINTR);
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nuclear@0
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50
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nuclear@7
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51 for(i=0; i<num_sockets; i++) {
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nuclear@7
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52 if(FD_ISSET(sockets[i], &rdset)) {
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nuclear@7
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53 tw_handle_socket(sockets[i]);
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nuclear@0
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54 }
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nuclear@0
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55 }
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nuclear@0
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56 }
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nuclear@3
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57
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nuclear@3
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58 return 0; /* unreachable */
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nuclear@0
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59 }
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nuclear@0
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60
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nuclear@3
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61 void sighandler(int s)
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nuclear@3
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62 {
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nuclear@3
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63 if(s == SIGINT || s == SIGTERM || s == SIGQUIT) {
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nuclear@7
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64 tw_stop();
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nuclear@3
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65 printf("bye!\n");
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nuclear@3
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66 exit(0);
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nuclear@3
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67 }
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nuclear@3
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68 }
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nuclear@3
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69
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nuclear@1
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70
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nuclear@1
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71 static void print_help(const char *argv0)
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nuclear@1
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72 {
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nuclear@1
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73 printf("Usage: %s [options]\n", argv0);
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nuclear@1
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74 printf("Options:\n");
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nuclear@1
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75 printf(" -p <port> set the TCP/IP port number to use\n");
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nuclear@1
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76 printf(" -h print usage help and exit\n");
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nuclear@1
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77 }
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nuclear@1
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78
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nuclear@1
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79 int parse_args(int argc, char **argv)
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nuclear@1
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80 {
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nuclear@1
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81 int i;
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nuclear@1
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82
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nuclear@1
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83 for(i=1; i<argc; i++) {
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nuclear@1
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84 if(argv[i][0] == '-' && argv[i][2] == 0) {
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nuclear@1
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85 switch(argv[i][1]) {
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nuclear@1
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86 case 'p':
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nuclear@7
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87 {
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nuclear@7
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88 int port = atoi(argv[++i]);
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nuclear@7
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89 if(!port) {
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nuclear@7
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90 fprintf(stderr, "-p must be followed by a valid port number\n");
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nuclear@7
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91 return -1;
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nuclear@7
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92 }
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nuclear@7
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93 tw_set_port(port);
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nuclear@1
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94 }
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nuclear@1
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95 break;
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nuclear@1
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96
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nuclear@1
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97 case 'h':
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nuclear@1
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98 print_help(argv[0]);
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nuclear@1
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99 exit(0);
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nuclear@1
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100
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nuclear@1
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101 default:
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nuclear@1
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102 fprintf(stderr, "unrecognized option: %s\n", argv[i]);
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nuclear@1
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103 return -1;
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nuclear@1
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104 }
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nuclear@1
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105 } else {
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nuclear@1
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106 fprintf(stderr, "unexpected argument: %s\n", argv[i]);
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nuclear@1
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107 return -1;
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nuclear@1
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108 }
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nuclear@0
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109 }
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nuclear@0
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110 return 0;
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nuclear@0
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111 }
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