[PATCH] rtl: fix buffer underflow for large output buffers

[Jiří Pinkava]

when 'remaining' is larger than number of samples in buffer, reading
continues behind buffer boundary, resulting is SIGSEG

---
lib/rtl/rtl_source_c.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rtl/rtl_source_c.cc b/lib/rtl/rtl_source_c.cc
index 3c29e42..accaaa9 100644
--- a/lib/rtl/rtl_source_c.cc
+++ b/lib/rtl/rtl_source_c.cc
@@ -370,7 +370,7 @@ int rtl_source_c::work( int noutput_items,

int remaining = noutput_items - _samp_avail;

- for (int i = 0; i < remaining; ++i)
+ for (int i = 0; i < remaining && i < int(_buf_len /
BYTES_PER_SAMPLE); ++i)
*out++ = _lut[ *(buf + i) ];

_buf_offset = remaining;