From 4fe0233cdef56658010643a2acb4c88aab1ebf83 Mon Sep 17 00:00:00 2001 From: Sergey Tatarintsev Date: Mon, 10 Nov 2025 11:41:12 +0700 Subject: [PATCH v2] Ability to pass NULL as a hintp to pg_getaddrinfo_all() --- src/common/ip.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/common/ip.c b/src/common/ip.c index 0e7897a5c8f..b9b8cec0873 100644 --- a/src/common/ip.c +++ b/src/common/ip.c @@ -58,7 +58,8 @@ pg_getaddrinfo_all(const char *hostname, const char *servname, /* not all versions of getaddrinfo() zero *result on failure */ *result = NULL; - if (hintp->ai_family == AF_UNIX) + /* Pass NULL to hintp is equivalent to ai_family=AF_UNSPEC */ + if (hintp && hintp->ai_family == AF_UNIX) return getaddrinfo_unix(servname, hintp, result); /* NULL has special meaning to getaddrinfo(). */ @@ -77,6 +78,7 @@ pg_getaddrinfo_all(const char *hostname, const char *servname, * getaddrinfo() routine or our own getaddrinfo_unix() routine. Some versions * of getaddrinfo() might be willing to return AF_UNIX addresses, so it's * not safe to look at ai_family in the addrinfo itself. + * If original hint structure was NULL, hint_ai_family must be equal to AF_UNSPEC. */ void pg_freeaddrinfo_all(int hint_ai_family, struct addrinfo *ai) -- 2.43.0