diff options
Diffstat (limited to 'inet/getnameinfo.c')
| -rw-r--r-- | inet/getnameinfo.c | 96 |
1 files changed, 38 insertions, 58 deletions
diff --git a/inet/getnameinfo.c b/inet/getnameinfo.c index 493a423c10..b7b2b151b2 100644 --- a/inet/getnameinfo.c +++ b/inet/getnameinfo.c @@ -203,48 +203,40 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host, if (!(flags & NI_NUMERICHOST)) { struct hostent *h = NULL; + if (sa->sa_family == AF_INET6) + { + while (__gethostbyaddr_r ((const void *) &(((const struct sockaddr_in6 *) sa)->sin6_addr), + sizeof(struct in6_addr), + AF_INET6, &th, tmpbuf, tmpbuflen, + &h, &herrno)) + if (herrno == NETDB_INTERNAL && errno == ERANGE) + tmpbuf = extend_alloca (tmpbuf, tmpbuflen, 2 * tmpbuflen); + else + break; + } + else + { + while (__gethostbyaddr_r ((const void *) &(((const struct sockaddr_in *)sa)->sin_addr), + sizeof(struct in_addr), AF_INET, + &th, tmpbuf, tmpbuflen, + &h, &herrno)) + if (herrno == NETDB_INTERNAL && errno == ERANGE) + tmpbuf = extend_alloca (tmpbuf, tmpbuflen, 2 * tmpbuflen); + else + break; + } + if (h == NULL) { - if (sa->sa_family == AF_INET6) + if (herrno == NETDB_INTERNAL) { - while (__gethostbyaddr_r ((const void *) &(((const struct sockaddr_in6 *) sa)->sin6_addr), - sizeof(struct in6_addr), - AF_INET6, &th, tmpbuf, tmpbuflen, - &h, &herrno)) - { - if (herrno == NETDB_INTERNAL) - { - if (errno == ERANGE) - tmpbuf = extend_alloca (tmpbuf, tmpbuflen, - 2 * tmpbuflen); - else - { - __set_h_errno (herrno); - __set_errno (serrno); - return EAI_SYSTEM; - } - } - else - { - break; - } - } + __set_h_errno (herrno); + return EAI_SYSTEM; } - else + if (herrno == TRY_AGAIN) { - while (__gethostbyaddr_r ((const void *) &(((const struct sockaddr_in *)sa)->sin_addr), - sizeof(struct in_addr), AF_INET, - &th, tmpbuf, tmpbuflen, - &h, &herrno)) - { - if (errno == ERANGE) - tmpbuf = extend_alloca (tmpbuf, tmpbuflen, - 2 * tmpbuflen); - else - { - break; - } - } + __set_h_errno (herrno); + return EAI_AGAIN; } } @@ -361,10 +353,7 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host, (const void *) &(((const struct sockaddr_in *) sa)->sin_addr), host, hostlen); if (c == NULL) - { - __set_errno (serrno); - return EAI_SYSTEM; - } + return EAI_SYSTEM; } ok = 1; } @@ -403,25 +392,16 @@ getnameinfo (const struct sockaddr *sa, socklen_t addrlen, char *host, if (!(flags & NI_NUMERICSERV)) { struct servent *s, ts; - while (__getservbyport_r (((const struct sockaddr_in *) sa)->sin_port, - ((flags & NI_DGRAM) ? "udp" : "tcp"), - &ts, tmpbuf, tmpbuflen, &s)) + int e; + while ((e = __getservbyport_r (((const struct sockaddr_in *) sa)->sin_port, + ((flags & NI_DGRAM) + ? "udp" : "tcp"), + &ts, tmpbuf, tmpbuflen, &s))) { - if (herrno == NETDB_INTERNAL) - { - if (errno == ERANGE) - tmpbuf = extend_alloca (tmpbuf, tmpbuflen, - 2 * tmpbuflen); - else - { - __set_errno (serrno); - return EAI_SYSTEM; - } - } + if (e == ERANGE) + tmpbuf = extend_alloca (tmpbuf, tmpbuflen, 2 * tmpbuflen); else - { - break; - } + break; } if (s) { |