Handle maxlen when stream can't be mmaped

1 files changed, 11 insertions, 0 deletions

diff --git a/main/streams/streams.c b/main/streams/streams.c
index a7c65dde57..fc5a0b82ee 100755
--- a/main/streams/streams.c
+++ b/main/streams/streams.c
@@ -1211,6 +1211,17 @@ PHPAPI size_t _php_stream_copy_to_mem(php_stream *src, char **buf, size_t maxlen
 		}
 	}
 
+	if (maxlen > 0) {
+		ptr = *buf = pemalloc_rel_orig(maxlen + 1, persistent);
+		while ((len < maxlen) & !php_stream_eof(src)) {
+			ret = php_stream_read(src, ptr, maxlen - len);
+			len += ret;
+			ptr += ret;
+		}
+		*ptr = '\0';
+		return len;
+	}
+
 	/* avoid many reallocs by allocating a good sized chunk to begin with, if
 	 * we can.  Note that the stream may be filtered, in which case the stat
 	 * result may be inaccurate, as the filter may inflate or deflate the