* [PATCH] nntp: allow multiple spaces or tabs to delimit args
@ 2020-04-02 0:17 7% Eric Wong
0 siblings, 0 replies; 1+ results
From: Eric Wong @ 2020-04-02 0:17 UTC (permalink / raw)
To: meta
While this is not a known problem in practice,
RFC 3977 section 3.1 states:
Keywords and arguments MUST each be separated by one
or more space or TAB characters.
---
lib/PublicInbox/NNTP.pm | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/PublicInbox/NNTP.pm b/lib/PublicInbox/NNTP.pm
index 277657e6..66de41ad 100644
--- a/lib/PublicInbox/NNTP.pm
+++ b/lib/PublicInbox/NNTP.pm
@@ -76,7 +76,7 @@ sub args_ok ($$) {
# returns 1 if we can continue, 0 if not due to buffered writes or disconnect
sub process_line ($$) {
my ($self, $l) = @_;
- my ($req, @args) = split(/[ \t]/, $l);
+ my ($req, @args) = split(/[ \t]+/, $l);
return 1 unless defined($req); # skip blank line
$req = $self->can('cmd_'.lc($req));
return res($self, '500 command not recognized') unless $req;
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