diff options
Diffstat (limited to 'src/port/getaddrinfo.c')
| -rw-r--r-- | src/port/getaddrinfo.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/port/getaddrinfo.c b/src/port/getaddrinfo.c index b0ca4c778ed..3284c6eb52a 100644 --- a/src/port/getaddrinfo.c +++ b/src/port/getaddrinfo.c @@ -34,6 +34,14 @@ #include "port/pg_bswap.h" +#ifdef FRONTEND +static int pqGethostbyname(const char *name, + struct hostent *resultbuf, + char *buffer, size_t buflen, + struct hostent **result, + int *herrno); +#endif + #ifdef WIN32 /* * The native routines may or may not exist on the Windows platform we are on, @@ -394,3 +402,39 @@ getnameinfo(const struct sockaddr *sa, int salen, return 0; } + +/* + * Wrapper around gethostbyname() or gethostbyname_r() to mimic + * POSIX gethostbyname_r() behaviour, if it is not available or required. + */ +#ifdef FRONTEND +static int +pqGethostbyname(const char *name, + struct hostent *resultbuf, + char *buffer, size_t buflen, + struct hostent **result, + int *herrno) +{ +#if defined(ENABLE_THREAD_SAFETY) && defined(HAVE_GETHOSTBYNAME_R) + + /* + * broken (well early POSIX draft) gethostbyname_r() which returns 'struct + * hostent *' + */ + *result = gethostbyname_r(name, resultbuf, buffer, buflen, herrno); + return (*result == NULL) ? -1 : 0; +#else + + /* no gethostbyname_r(), just use gethostbyname() */ + *result = gethostbyname(name); + + if (*result != NULL) + *herrno = h_errno; + + if (*result != NULL) + return 0; + else + return -1; +#endif +} +#endif /* FRONTEND */ |