diff options
Diffstat (limited to 'mDNSResponder/mDNSPosix/mDNSPosix.c')
| -rwxr-xr-x | mDNSResponder/mDNSPosix/mDNSPosix.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/mDNSResponder/mDNSPosix/mDNSPosix.c b/mDNSResponder/mDNSPosix/mDNSPosix.c index 308252fb..9b4dbed8 100755 --- a/mDNSResponder/mDNSPosix/mDNSPosix.c +++ b/mDNSResponder/mDNSPosix/mDNSPosix.c @@ -40,6 +40,10 @@ #include <netinet/in.h> #include <arpa/inet.h> #include <time.h> // platform support for UTC time +#ifdef __rtems__ +#include <sys/param.h> +#include <rtems/libio_.h> +#endif /* __rtems__ */ #if USES_NETLINK #include <asm/types.h> @@ -76,7 +80,12 @@ struct IfChangeRec typedef struct IfChangeRec IfChangeRec; // Note that static data is initialized to zero in (modern) C. +#ifndef __rtems__ static fd_set gEventFDs; +#else /* __rtems__ */ +static fd_set *gAllocatedEventFDs; +#define gEventFDs (*gAllocatedEventFDs) +#endif /* __rtems__ */ static int gMaxFD; // largest fd in gEventFDs static GenLinkedList gEventSources; // linked list of PosixEventSource's static sigset_t gEventSignalSet; // Signals which event loop listens for @@ -439,6 +448,15 @@ mDNSexport mDNSBool mDNSPlatformSetDNSConfig(mDNSBool setservers, mDNSBool setse (void) RegDomains; (void) BrowseDomains; (void) ackConfig; +#ifdef __rtems__ + /* + * Copied from mDNSMacOSX/mDNSMacOSX.c to prevent use of uninitialized + * stack variables. + */ + if (fqdn ) fqdn->c[0] = 0; + if (RegDomains ) *RegDomains = NULL; + if (BrowseDomains) *BrowseDomains = NULL; +#endif /* __rtems__ */ return mDNStrue; } @@ -657,6 +675,7 @@ mDNSlocal int SetupSocket(struct sockaddr *intfAddr, mDNSIPPort port, int interf #endif if (err < 0) { err = errno; perror("setsockopt - SO_REUSExxxx"); } +#ifndef __rtems__ // Enable inbound packets on IFEF_AWDL interface. // Only done for multicast sockets, since we don't expect unicast socket operations // on the IFEF_AWDL interface. Operation is a no-op for other interface types. @@ -664,6 +683,7 @@ mDNSlocal int SetupSocket(struct sockaddr *intfAddr, mDNSIPPort port, int interf #define SO_RECV_ANYIF 0x1104 /* unrestricted inbound processing */ #endif if (setsockopt(*sktPtr, SOL_SOCKET, SO_RECV_ANYIF, &kOn, sizeof(kOn)) < 0) perror("setsockopt - SO_RECV_ANYIF"); +#endif /* __rtems__ */ } // We want to receive destination addresses and interface identifiers. @@ -1208,14 +1228,23 @@ mDNSlocal mDNSu32 ProcessRoutingNotification(int sd) mDNSlocal void InterfaceChangeCallback(int fd, short filter, void *context) { IfChangeRec *pChgRec = (IfChangeRec*) context; +#ifndef __rtems__ fd_set readFDs; +#else /* __rtems__ */ + fd_set bigEnoughReadFDs[howmany(rtems_libio_number_iops, sizeof(fd_set) * 8)]; +#define readFDs (*(&bigEnoughReadFDs[0])) +#endif /* __rtems__ */ mDNSu32 changedInterfaces = 0; struct timeval zeroTimeout = { 0, 0 }; (void)fd; // Unused (void)filter; // Unused +#ifndef __rtems__ FD_ZERO(&readFDs); +#else /* __rtems__ */ + memset(bigEnoughReadFDs, 0, sizeof(bigEnoughReadFDs)); +#endif /* __rtems__ */ FD_SET(pChgRec->NotifySD, &readFDs); do @@ -1272,6 +1301,9 @@ mDNSexport mStatus mDNSPlatformInit(mDNS *const m) { int err = 0; struct sockaddr sa; +#ifdef __rtems__ + pthread_mutexattr_t attr; +#endif /* __rtems__ */ assert(m != NULL); if (mDNSPlatformInit_CanReceiveUnicast()) m->CanReceiveUnicastOn5353 = mDNStrue; @@ -1289,6 +1321,16 @@ mDNSexport mStatus mDNSPlatformInit(mDNS *const m) if (m->hostlabel.c[0] == 0) MakeDomainLabelFromLiteralString(&m->hostlabel, "Computer"); mDNS_SetFQDN(m); +#ifdef __rtems__ + if (err == mStatus_NoError) { + gAllocatedEventFDs = calloc(howmany(rtems_libio_number_iops, sizeof(fd_set) * 8), sizeof(fd_set)); + if (gAllocatedEventFDs == NULL) err = mStatus_NoMemoryErr; + } + if (err == mStatus_NoError) err = pthread_mutexattr_init(&attr); + if (err == mStatus_NoError) err = pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT); + if (err == mStatus_NoError) err = pthread_mutex_init(&m->p->mutex, &attr); + if (err == mStatus_NoError) err = pthread_mutexattr_destroy(&attr); +#endif /* __rtems__ */ sa.sa_family = AF_INET; m->p->unicastSocket4 = -1; @@ -1373,14 +1415,22 @@ mDNSexport mStatus mDNSPlatformPosixRefreshInterfaceList(mDNS *const m) // the platform from reentering mDNS core code. mDNSexport void mDNSPlatformLock (const mDNS *const m) { +#ifndef __rtems__ (void) m; // Unused +#else /* __rtems__ */ + pthread_mutex_lock(&m->p->mutex); +#endif /* __rtems__ */ } // mDNS core calls this routine when it release the lock taken by // mDNSPlatformLock and allow the platform to reenter mDNS core code. mDNSexport void mDNSPlatformUnlock (const mDNS *const m) { +#ifndef __rtems__ (void) m; // Unused +#else /* __rtems__ */ + pthread_mutex_unlock(&m->p->mutex); +#endif /* __rtems__ */ } #if COMPILER_LIKES_PRAGMA_MARK @@ -1755,8 +1805,10 @@ mStatus mDNSPosixAddFDToEventLoop(int fd, mDNSPosixEventCallback callback, void if (gEventSources.LinkOffset == 0) InitLinkedList(&gEventSources, offsetof(PosixEventSource, Next)); +#ifndef __rtems__ if (fd >= (int) FD_SETSIZE || fd < 0) return mStatus_UnsupportedErr; +#endif /* __rtems__ */ if (callback == NULL) return mStatus_BadParamErr; @@ -1836,7 +1888,13 @@ mStatus mDNSPosixIgnoreSignalInEventLoop(int signum) mStatus mDNSPosixRunEventLoopOnce(mDNS *m, const struct timeval *pTimeout, sigset_t *pSignalsReceived, mDNSBool *pDataDispatched) { +#ifndef __rtems__ fd_set listenFDs = gEventFDs; +#else /* __rtems__ */ + fd_set bigEnoughListenFDs[howmany(rtems_libio_number_iops, sizeof(fd_set) * 8)]; +#define listenFDs (*(&bigEnoughListenFDs[0])) + memcpy(bigEnoughListenFDs, gAllocatedEventFDs, sizeof(bigEnoughListenFDs)); +#endif /* __rtems__ */ int fdMax = 0, numReady; struct timeval timeout = *pTimeout; |