From 799b2a343f40ccc586481aa7b269da5f0abf513f Mon Sep 17 00:00:00 2001
From: Marius Gavrilescu <marius@ieval.ro>
Date: Tue, 11 Jun 2019 15:39:25 +0300
Subject: [PATCH] unbro should not require maximum buffer size (RT #129480)

---
 Brotli.xs                   |  2 +-
 lib/IO/Uncompress/Brotli.pm | 20 ++++++++++++++++++++
 t/01-uncompress.t           |  7 +++++--
 3 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/Brotli.xs b/Brotli.xs
index ffbde1e..4e030a7 100644
--- a/Brotli.xs
+++ b/Brotli.xs
@@ -23,7 +23,7 @@ MODULE = IO::Compress::Brotli		PACKAGE = IO::Uncompress::Brotli
 PROTOTYPES: ENABLE
 
 SV*
-unbro(buffer, decoded_size)
+unbro_given_size(buffer, decoded_size)
     SV* buffer
     size_t decoded_size
   PREINIT:
diff --git a/lib/IO/Uncompress/Brotli.pm b/lib/IO/Uncompress/Brotli.pm
index 1c6671b..0cc22e2 100644
--- a/lib/IO/Uncompress/Brotli.pm
+++ b/lib/IO/Uncompress/Brotli.pm
@@ -13,6 +13,21 @@ our $VERSION = '0.004001';
 require XSLoader;
 XSLoader::load('IO::Compress::Brotli', $VERSION);
 
+# 0.004 has unbro with prototype $$
+# 0.004_001 renames it to unbro_given_size, and provides unbro with
+#           prototype $;$ which calls:
+#           * unbro_given_size when called with two arguments
+#           * the OO interface when called with one argument
+sub unbro ($;$) {
+	my ($buffer, $decoded_size) = @_;
+	if (defined $decoded_size) {
+		return unbro_given_size($buffer, $decoded_size)
+	} else {
+		my $bro = IO::Uncompress::Brotli->create;
+		return $bro->decompress($buffer);
+	}
+}
+
 1;
 __END__
 
@@ -58,6 +73,11 @@ data. It allocates a buffer of size I<$maximum_decoded_size> to store
 the decompressed data, if this is not sufficient (or there is another
 error) this function will croak.
 
+As of version 0.004_001, the I<$maximum_decoded_size> argument is
+optional. If not provided, B<unbro> uses the streaming interface
+described in the next section to decompress the buffer in blocks of
+one megabyte. The decompressed blocks are concatenated and returned.
+
 Exported by default.
 
 =back
diff --git a/t/01-uncompress.t b/t/01-uncompress.t
index f67c5e4..b8fbc6d 100644
--- a/t/01-uncompress.t
+++ b/t/01-uncompress.t
@@ -2,7 +2,7 @@
 use v5.14;
 use warnings;
 
-use Test::More tests => 84;
+use Test::More tests => 126;
 use File::Slurper qw/read_binary/;
 
 use IO::Uncompress::Brotli;
@@ -12,7 +12,10 @@ for my $test (<brotli/tests/testdata/*.compressed*>) {
 	$expected = read_binary $expected;
 
 	my $decoded = unbro ((scalar read_binary $test), 1_000_000);
-	is $decoded, $expected, "$test";
+	is $decoded, $expected, "$test (two-argument unbro)";
+
+	$decoded = unbro scalar read_binary $test;
+	is $decoded, $expected, "$test (one-argument unbro)";
 
 	open FH, '<', $test;
 	binmode FH;
-- 
2.39.2