diff options
Diffstat (limited to 'net.c')
| -rw-r--r-- | net.c | 27 |
1 files changed, 24 insertions, 3 deletions
@@ -106,6 +106,27 @@ static inline void MaskIP4 (struct in_addr *addr, uint8_t bits) { #define SIN(sa) ((struct sockaddr_in *)(sa)) #define SIN6(sa) ((struct sockaddr_in6 *)(sa)) + +/* This is a cancel-safe getnameinfo() version, because we learned + * (via drd/valgrind) that getnameinfo() seems to have some issues + * when being cancelled, at least if the module was dlloaded. + * rgerhards, 2008-09-30 + */ +static inline int +mygetnameinfo(const struct sockaddr *sa, socklen_t salen, + char *host, size_t hostlen, + char *serv, size_t servlen, int flags) +{ + int iCancelStateSave; + int i; + + pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &iCancelStateSave); + i = getnameinfo(sa, salen, host, hostlen, serv, servlen, flags); + pthread_setcancelstate(iCancelStateSave, NULL); + return i; +} + + /* This function adds an allowed sender entry to the ACL linked list. * In any case, a single entry is added. If an error occurs, the * function does its error reporting itself. All validity checks @@ -368,7 +389,7 @@ void PrintAllowedSenders(int iListToPrint) if (F_ISSET(pSender->allowedSender.flags, ADDR_NAME)) dbgprintf ("\t%s\n", pSender->allowedSender.addr.HostWildcard); else { - if(getnameinfo (pSender->allowedSender.addr.NetAddr, + if(mygetnameinfo (pSender->allowedSender.addr.NetAddr, SALEN(pSender->allowedSender.addr.NetAddr), (char*)szIP, 64, NULL, 0, NI_NUMERICHOST) == 0) { dbgprintf ("\t%s/%u\n", szIP, pSender->SignificantBits); @@ -642,7 +663,7 @@ gethname(struct sockaddr_storage *f, uchar *pszHostFQDN) assert(f != NULL); assert(pszHostFQDN != NULL); - error = getnameinfo((struct sockaddr *)f, SALEN((struct sockaddr *)f), + error = mygetnameinfo((struct sockaddr *)f, SALEN((struct sockaddr *)f), ip, sizeof ip, NULL, 0, NI_NUMERICHOST); if (error) { @@ -656,7 +677,7 @@ gethname(struct sockaddr_storage *f, uchar *pszHostFQDN) sigaddset(&nmask, SIGHUP); pthread_sigmask(SIG_BLOCK, &nmask, &omask); - error = getnameinfo((struct sockaddr *)f, SALEN((struct sockaddr *) f), + error = mygetnameinfo((struct sockaddr *)f, SALEN((struct sockaddr *) f), (char*)pszHostFQDN, NI_MAXHOST, NULL, 0, NI_NAMEREQD); if (error == 0) { |