make the bcast example use timers and wait for up to 1 second for all

[deb_libnfs.git] / examples / nfsclient-bcast.c

diff --git a/examples/nfsclient-bcast.c b/examples/nfsclient-bcast.c
index c74c5b37764b8e12a9aa002ee714aadf24deb17f..6f48618259a15ec8a21c04b49ce928e0827b3a01 100644 (file)
--- a/examples/nfsclient-bcast.c
+++ b/examples/nfsclient-bcast.c
@@ -25,6 +25,9 @@
 #include <poll.h>
 #include <errno.h>
 #include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <net/if.h>
 #include <netdb.h>
 #include "libnfs.h"
 #include "libnfs-raw.h"
@@ -38,6 +41,9 @@ void pm_cb(struct rpc_context *rpc _U_, int status, void *data, void *private_da
        struct sockaddr *sin;
        char hostdd[16];
 
+       if (status == RPC_STATUS_CANCEL) {
+               return;
+       }
        if (status != 0) {
                printf("callback for CALLIT failed\n");
                exit(10);
@@ -61,6 +67,9 @@ int main(int argc _U_, char *argv[] _U_)
 {
        struct rpc_context *rpc;
        struct pollfd pfd;
+       struct ifconf ifc;
+       int i, size;
+       struct timeval tv_start, tv_current;
        
        rpc = rpc_init_udp_context();
        if (rpc == NULL) {
@@ -73,43 +82,90 @@ int main(int argc _U_, char *argv[] _U_)
                exit(10);
        }
 
-       if (rpc_set_udp_destination(rpc, "10.1.1.255", 111, 1) < 0) {
-               printf("failed to set udp destination %s\n", rpc_get_error(rpc));
-               exit(10);
-       }
 
-       if (rpc_pmap_callit_async(rpc, 100005, 2, 0, NULL, 0, pm_cb, NULL) < 0) {
-               printf("Failed to set up callit function\n");
-               exit(10);
-       }
-       if (rpc_set_udp_destination(rpc, "10.9.2.255", 111, 1) < 0) {
-               printf("failed to set udp destination %s\n", rpc_get_error(rpc));
-               exit(10);
-       }
+       /* get list of all interfaces */
+       size = sizeof(struct ifreq);
+       ifc.ifc_buf = NULL;
+       ifc.ifc_len = size;
 
-       if (rpc_pmap_callit_async(rpc, 100005, 2, 0, NULL, 0, pm_cb, NULL) < 0) {
-               printf("Failed to set up callit function\n");
-               exit(10);
-       }
+       while (ifc.ifc_len == size) {
+               size *= 2;
 
-       alarm(3);
+               free(ifc.ifc_buf);      
+               ifc.ifc_len = size;
+               ifc.ifc_buf = malloc(size);
+               if (ioctl(rpc_get_fd(rpc), SIOCGIFCONF, (caddr_t)&ifc) < 0) {
+                       printf("ioctl SIOCGIFCONF failed\n");
+                       exit(10);
+               }
+       }       
+
+       for (i=0; i<ifc.ifc_len / sizeof(struct ifconf); i++) {
+               char bcdd[16];
 
+               if (ifc.ifc_req[i].ifr_addr.sa_family != AF_INET) {
+                       continue;
+               }
+               if (ioctl(rpc_get_fd(rpc), SIOCGIFFLAGS, &ifc.ifc_req[i]) < 0) {
+                       printf("ioctl DRBADDR failed\n");
+                       exit(10);
+               }
+               if (!(ifc.ifc_req[i].ifr_flags & IFF_UP)) {
+                       continue;
+               }
+               if (ifc.ifc_req[i].ifr_flags & IFF_LOOPBACK) {
+                       continue;
+               }
+               if (!(ifc.ifc_req[i].ifr_flags & IFF_BROADCAST)) {
+                       continue;
+               }
+               if (ioctl(rpc_get_fd(rpc), SIOCGIFBRDADDR, &ifc.ifc_req[i]) < 0) {
+                       printf("ioctl DRBADDR failed\n");
+                       exit(10);
+               }
+               if (getnameinfo(&ifc.ifc_req[i].ifr_broadaddr, sizeof(struct sockaddr_in), &bcdd[0], sizeof(bcdd), NULL, 0, NI_NUMERICHOST) < 0) {
+                       printf("getnameinfo failed\n");
+                       exit(10);
+               }
+               if (rpc_set_udp_destination(rpc, bcdd, 111, 1) < 0) {
+                       printf("failed to set udp destination %s\n", rpc_get_error(rpc));
+                       exit(10);
+               }
+
+               if (rpc_pmap_callit_async(rpc, MOUNT_PROGRAM, 2, 0, NULL, 0, pm_cb, NULL) < 0) {
+                       printf("Failed to set up callit function\n");
+                       exit(10);
+               }
+       }
+       free(ifc.ifc_buf);      
+
+       gettimeofday(&tv_start, NULL);
        for(;;) {
+               int mpt;
+
                pfd.fd = rpc_get_fd(rpc);
                pfd.events = rpc_which_events(rpc);
 
-               if (poll(&pfd, 1, -1) < 0) {
+               gettimeofday(&tv_current, NULL);
+               mpt = 1000
+               -    (tv_current.tv_sec *1000 + tv_current.tv_usec / 1000)
+               +    (tv_start.tv_sec *1000 + tv_start.tv_usec / 1000);
+
+               if (poll(&pfd, 1, mpt) < 0) {
                        printf("Poll failed");
                        exit(10);
                }
+               if (pfd.revents == 0) {
+                       break;
+               }
+               
                if (rpc_service(rpc, pfd.revents) < 0) {
                        printf("rpc_service failed with %s\n", rpc_get_error(rpc));
                        break;
                }
        }
-       
+
        rpc_destroy_context(rpc);
        rpc=NULL;
-       printf("nfsclient finished\n");
        return 0;
 }