From: Alan T. DeKok <aland@freeradius.org>
Date: Tue, 14 Sep 2021 15:49:23 +0000 (-0400)
Subject: handle negative numbers
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f39aa31e0adfa1e28edfb9e2e0fba24e0ec86adf;p=thirdparty%2Ffreeradius-server.git

handle negative numbers
---

diff --git a/src/lib/util/dbuff.h b/src/lib/util/dbuff.h
index 336b5b2d6be..d0fc622e9db 100644
--- a/src/lib/util/dbuff.h
+++ b/src/lib/util/dbuff.h
@@ -1789,14 +1789,19 @@ static inline ssize_t _fr_dbuff_out_uint64v(uint64_t *num, uint8_t **pos_p, fr_d
 static inline ssize_t _fr_dbuff_out_int64v(int64_t *num, uint8_t **pos_p, fr_dbuff_t *dbuff, size_t length)
 {
 	ssize_t		slen;
+	bool		negative;
 
 	fr_assert(length > 0 && length <= sizeof(uint64_t));
 
+	negative = *fr_dbuff_current(dbuff) & 0x80;
+
 	*num = 0;
 	slen = _fr_dbuff_out_memcpy(((uint8_t *) num) + (8 - length), pos_p, dbuff, length);
 	if (slen <= 0) return slen;
 
 	*num = fr_net_to_int64((uint8_t const *)num);
+	if (negative) *num = -*num;
+
 	return length;
 }