git.ozlabs.org Git - ccan/blob - ccan/io/test/run-18-errno.c

   1 #include <ccan/io/io.h>
   2 /* Include the C files directly. */
   3 #include <ccan/io/poll.c>
   4 #include <ccan/io/io.c>
   5 #include <ccan/tap/tap.h>
   6 #include <sys/wait.h>
   7 #include <stdio.h>
   8
   9 #ifndef PORT
  10 #define PORT "65018"
  11 #endif
  12
  13 static void finish_100(struct io_conn *conn, int *state)
  14 {
  15         ok1(errno == 100);
  16         ok1(*state == 1);
  17         (*state)++;
  18 }
  19
  20 static void finish_EBADF(struct io_conn *conn, int *state)
  21 {
  22         ok1(errno == EBADF);
  23         ok1(*state == 3);
  24         (*state)++;
  25         io_break(state + 1, io_close());
  26 }
  27
  28 static void init_conn(int fd, int *state)
  29 {
  30         if (*state == 0) {
  31                 (*state)++;
  32                 errno = 100;
  33                 io_set_finish(io_new_conn(fd, io_close()), finish_100, state);
  34         } else {
  35                 ok1(*state == 2);
  36                 (*state)++;
  37                 close(fd);
  38                 errno = 0;
  39                 io_set_finish(io_new_conn(fd, io_read(state, 0,
  40                                                       io_close_cb, NULL)),
  41                               finish_EBADF, state);
  42         }
  43 }
  44
  45 static int make_listen_fd(const char *port, struct addrinfo **info)
  46 {
  47         int fd, on = 1;
  48         struct addrinfo *addrinfo, hints;
  49
  50         memset(&hints, 0, sizeof(hints));
  51         hints.ai_family = AF_UNSPEC;
  52         hints.ai_socktype = SOCK_STREAM;
  53         hints.ai_flags = AI_PASSIVE;
  54         hints.ai_protocol = 0;
  55
  56         if (getaddrinfo(NULL, port, &hints, &addrinfo) != 0)
  57                 return -1;
  58
  59         fd = socket(addrinfo->ai_family, addrinfo->ai_socktype,
  60                     addrinfo->ai_protocol);
  61         if (fd < 0)
  62                 return -1;
  63
  64         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
  65         if (bind(fd, addrinfo->ai_addr, addrinfo->ai_addrlen) != 0) {
  66                 close(fd);
  67                 return -1;
  68         }
  69         if (listen(fd, 1) != 0) {
  70                 close(fd);
  71                 return -1;
  72         }
  73         *info = addrinfo;
  74         return fd;
  75 }
  76
  77 int main(void)
  78 {
  79         int state = 0;
  80         struct addrinfo *addrinfo;
  81         struct io_listener *l;
  82         int fd;
  83
  84         /* This is how many tests you plan to run */
  85         plan_tests(12);
  86         fd = make_listen_fd(PORT, &addrinfo);
  87         ok1(fd >= 0);
  88         l = io_new_listener(fd, init_conn, &state);
  89         ok1(l);
  90         fflush(stdout);
  91         if (!fork()) {
  92                 io_close_listener(l);
  93                 fd = socket(addrinfo->ai_family, addrinfo->ai_socktype,
  94                             addrinfo->ai_protocol);
  95                 if (fd < 0)
  96                         exit(1);
  97                 if (connect(fd, addrinfo->ai_addr, addrinfo->ai_addrlen) != 0)
  98                         exit(2);
  99                 close(fd);
 100                 fd = socket(addrinfo->ai_family, addrinfo->ai_socktype,
 101                             addrinfo->ai_protocol);
 102                 if (fd < 0)
 103                         exit(3);
 104                 if (connect(fd, addrinfo->ai_addr, addrinfo->ai_addrlen) != 0)
 105                         exit(4);
 106                 close(fd);
 107                 freeaddrinfo(addrinfo);
 108                 exit(0);
 109         }
 110         freeaddrinfo(addrinfo);
 111         ok1(io_loop() == &state + 1);
 112         ok1(state == 4);
 113         io_close_listener(l);
 114         ok1(wait(&state));
 115         ok1(WIFEXITED(state));
 116         ok1(WEXITSTATUS(state) == 0);
 117
 118         /* This exits depending on whether all tests passed */
 119         return exit_status();
 120 }