commit f3ff58d: [Feature] Core: Relax quoted-printable encoding

[Vsevolod Stakhov]

Author: Vsevolod Stakhov
Date: 2019-01-16 14:11:50 +0000
URL: https://github.com/rspamd/rspamd/commit/f3ff58dd3b28a283020a9ea54113f6295041fad5

[Feature] Core: Relax quoted-printable encoding

---
 src/libutil/str_util.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/libutil/str_util.c b/src/libutil/str_util.c
index 0c63edba2..27d50aead 100644
--- a/src/libutil/str_util.c
+++ b/src/libutil/str_util.c
@@ -1931,7 +1931,7 @@ rspamd_decode_qp_buf (const gchar *in, gsize inlen,
 	gchar *o, *end, *pos, c;
 	const gchar *p;
 	guchar ret;
-	gsize remain, processed;
+	gssize remain, processed;
 
 	p = in;
 	o = out;
@@ -1967,6 +1967,14 @@ decode:
 
 				continue;
 			}
+			else {
+				/* Hack, hack, hack, treat =<garbadge> as =<garbadge> */
+				if (remain > 0) {
+					*o++ = *(p - 1);
+				}
+
+				continue;
+			}
 
 			if (remain > 0) {
 				c = *p++;