Avoid use of Perl getprotobyname

petere · petere · commit 01226c682ce6 · 2023-08-23T20:48:48.000+02:00
getprotobyname returns undefined on some CI machines. It's not clear why. The code overall still works, but it raises a warning. In PostgreSQL C code, we always call socket() with 0 for the protocol argument, so we should be able to do the same in Perl (since the Perl documentation says that the arguments of the socket function are the same as in C). So do that, to avoid the issue. Reviewed-by: Andrew Dunstan <andrew@dunslane.net> Discussion: https://www.postgresql.org/message-id/flat/06f899fd-1826-05ab-42d6-adeb1fd5e200%40eisentraut.org
diff --git a/src/test/perl/PostgreSQL/Test/Cluster.pm b/src/test/perl/PostgreSQL/Test/Cluster.pm
@@ -1570,9 +1570,8 @@ sub can_bind
 	my ($host, $port) = @_;
 	my $iaddr = inet_aton($host);
 	my $paddr = sockaddr_in($port, $iaddr);
-	my $proto = getprotobyname("tcp");
 
-	socket(SOCK, PF_INET, SOCK_STREAM, $proto)
+	socket(SOCK, PF_INET, SOCK_STREAM, 0)
 	  or die "socket failed: $!";
 
 	# As in postmaster, don't use SO_REUSEADDR on Windows
