# HG changeset patch
# User Dmitry Volyntsev <xeioex@nginx.com>
# Date 1713338720 25200
#      Wed Apr 17 00:25:20 2024 -0700
# Node ID ca18b6292d6eea0bb58f5e7b08a7249d04629a8a
# Parent  40c980ca34563c056e871d5585d1aedd8f4d0890
Zlib: fixed inflate().

Previously, the function might fail to return the last part of the
compressed content. This problem is more visible when output size is >
1024 or when chunkSize < the content size.

diff --git a/external/njs_zlib_module.c b/external/njs_zlib_module.c
--- a/external/njs_zlib_module.c
+++ b/external/njs_zlib_module.c
@@ -463,7 +463,7 @@ njs_zlib_ext_inflate(njs_vm_t *vm, njs_v
 
     njs_chb_init(&chain, njs_vm_memory_pool(vm));
 
-    while (stream.avail_in > 0) {
+    while (rc != Z_STREAM_END) {
         stream.next_out = njs_chb_reserve(&chain, chunk_size);
         if (njs_slow_path(stream.next_out == NULL)) {
             njs_vm_memory_error(vm);
diff --git a/src/test/njs_unit_test.c b/src/test/njs_unit_test.c
--- a/src/test/njs_unit_test.c
+++ b/src/test/njs_unit_test.c
@@ -22352,6 +22352,13 @@ static njs_unit_test_t  njs_zlib_test[] 
       njs_str("eJwLd/R2BAAC+gEl,eJw7t/HcpnObAQ/sBIE=") },
 
     { njs_str("const zlib = require('zlib');"
+              "const buf = 'αβγ'.repeat(56);"
+              "const enc = zlib.deflateRawSync(buf, {chunkSize:64}).toString('base64');"
+              "const dec = zlib.inflateRawSync(Buffer.from(enc, 'base64')).toString();"
+              "buf == dec"),
+      njs_str("true") },
+
+    { njs_str("const zlib = require('zlib');"
               "['WAKA'.repeat(1024), 'αβγ'.repeat(1024)]"
               ".map(v => [v, zlib.deflateRawSync(v).toString('base64')])"
               ".every(pair => pair[0] == zlib.inflateRawSync(Buffer.from(pair[1], 'base64')).toString())"),
# HG changeset patch
# User Dmitry Volyntsev <xeioex@nginx.com>
# Date 1713338872 25200
#      Wed Apr 17 00:27:52 2024 -0700
# Node ID 2b6b25100aef6cbf8c2ab0bc2bd4d60942e41a45
# Parent  ca18b6292d6eea0bb58f5e7b08a7249d04629a8a
Zlib: improved tests with zlib-ng.

This fixes #704 issue on Github.

diff --git a/src/test/njs_unit_test.c b/src/test/njs_unit_test.c
--- a/src/test/njs_unit_test.c
+++ b/src/test/njs_unit_test.c
@@ -22319,14 +22319,15 @@ static njs_unit_test_t  njs_zlib_test[] 
       njs_str("WAKA,αβγ") },
 
     { njs_str("const zlib = require('zlib');"
-              "['WAKA', 'αβγ']"
-              ".map(v => zlib.deflateRawSync(v).toString('base64'))"),
-      njs_str("C3f0dgQA,O7fx3KZzmwE=") },
+              "const enc = ['WAKA', 'αβγ'].map(v => zlib.deflateRawSync(v).toString('base64'));"
+              "enc.map(v => zlib.inflateRawSync(Buffer.from(v, 'base64')).toString())"),
+      njs_str("WAKA,αβγ") },
 
     { njs_str("const zlib = require('zlib');"
-              "['WAKA', 'αβγ']"
-              ".map(v => zlib.deflateRawSync(v, {dictionary: Buffer.from('WAKA')}).toString('base64'))"),
-      njs_str("CwdiAA==,O7fx3KZzmwE=") },
+              "const enc = ['WAKA', 'αβγ']"
+              ".map(v => zlib.deflateRawSync(v, {dictionary: Buffer.from('WAKA')}).toString('base64'));"
+              "enc.map(v => zlib.inflateRawSync(Buffer.from(v, 'base64'), {dictionary: Buffer.from('WAKA')}))"),
+      njs_str("WAKA,αβγ") },
 
     { njs_str("const zlib = require('zlib');"
               "['WAKA', 'αβγ']"