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-rw-r--r--apt-pkg/contrib/crc-16.cc4
-rw-r--r--apt-pkg/contrib/crc-16.h1
2 files changed, 5 insertions, 0 deletions
diff --git a/apt-pkg/contrib/crc-16.cc b/apt-pkg/contrib/crc-16.cc
index f5df2d8b1..250d7664a 100644
--- a/apt-pkg/contrib/crc-16.cc
+++ b/apt-pkg/contrib/crc-16.cc
@@ -64,6 +64,10 @@ static unsigned short const crc16_table[256] =
/* Recompute the FCS with one more character appended. */
#define CalcFCS(fcs, c) (((fcs) >> 8) ^ crc16_table[((fcs) ^ (c)) & 0xff])
+unsigned short AddCRC16Byte(unsigned short fcs, unsigned char byte)
+{
+ return CalcFCS(fcs, byte);
+}
unsigned short AddCRC16(unsigned short fcs, void const *Buf,
unsigned long long len)
{
diff --git a/apt-pkg/contrib/crc-16.h b/apt-pkg/contrib/crc-16.h
index 08acdafb7..6cc3556c6 100644
--- a/apt-pkg/contrib/crc-16.h
+++ b/apt-pkg/contrib/crc-16.h
@@ -13,6 +13,7 @@
#include <apt-pkg/macros.h>
#define INIT_FCS 0xffff
+unsigned short AddCRC16Byte(unsigned short fcs, unsigned char byte) APT_CONST;
unsigned short AddCRC16(unsigned short fcs, void const *buf,
unsigned long long len) APT_PURE;