From ebd65af51f3d02965e7e98acd34ff00715adca44 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 8 Apr 2024 20:56:32 +0200 Subject: Merging upstream version 3.7.11. Signed-off-by: Daniel Baumann --- src/smtp/smtp_addr.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'src/smtp') diff --git a/src/smtp/smtp_addr.c b/src/smtp/smtp_addr.c index 2b5c126..fa0af4e 100644 --- a/src/smtp/smtp_addr.c +++ b/src/smtp/smtp_addr.c @@ -154,7 +154,7 @@ static DNS_RR *smtp_addr_one(DNS_RR *addr_list, const char *host, int res_opt, msg_fatal("host %s: conversion error for address family " "%d: %m", host, res0->ai_addr->sa_family); addr_list = dns_rr_append(addr_list, addr); - if (msg_verbose) + if (msg_verbose && !DNS_RR_IS_TRUNCATED(addr_list)) msg_info("%s: using numerical host %s", myname, host); freeaddrinfo(res0); return (addr_list); @@ -232,6 +232,8 @@ static DNS_RR *smtp_addr_one(DNS_RR *addr_list, const char *host, int res_opt, msg_fatal("host %s: conversion error for address family " "%d: %m", host, res0->ai_addr->sa_family); addr_list = dns_rr_append(addr_list, addr); + if (DNS_RR_IS_TRUNCATED(addr_list)) + break; if (msg_verbose) { MAI_HOSTADDR_STR hostaddr_str; @@ -297,6 +299,8 @@ static DNS_RR *smtp_addr_list(DNS_RR *mx_names, DSN_BUF *why) msg_panic("smtp_addr_list: bad resource type: %d", rr->type); addr_list = smtp_addr_one(addr_list, (char *) rr->data, res_opt, rr->pref, why); + if (addr_list && DNS_RR_IS_TRUNCATED(addr_list)) + break; } return (addr_list); } @@ -390,6 +394,13 @@ static DNS_RR *smtp_balance_inet_proto(DNS_RR *addr_list, int misc_flags, * relative list order is unchanged, but some elements are removed. */ + /* + * Ensure that dns_rr_append() won't interfere with the protocol + * balancing goals. + */ + if (addr_limit > var_dns_rr_list_limit) + addr_limit = var_dns_rr_list_limit; + /* * Count the number of IPv6 and IPv4 addresses. */ -- cgit v1.2.3