rfc2047: blaze822_decode_rfc2047: account for space for trailing nul

salewski · Mar 2, 2019 · 023c26f · 023c26f
1 parent 081a940
commit 023c26f
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/rfc2047.c b/rfc2047.c
@@ -130,6 +130,10 @@ blaze822_decode_rfc2047(char *dst, char *src, size_t dlen, char *tgtenc)
 	iconv_t ic = (iconv_t)-1;
 	char *srcenc = 0;
 
+	// need space for trailing nul
+	if (dlen-- == 0)
+		return 0;
+
 	char *startdst = dst;
 	size_t startdlen = dlen;