From: Eric Biggers <ebiggers3@gmail.com>
Date: Sun, 11 Sep 2022 17:34:12 +0000 (-0500)
Subject: tools/afl-fuzz: fix ctype calculation
X-Git-Tag: v1.13.6~3
X-Git-Url: https://wimlib.net/git/?a=commitdiff_plain;h=8d7a09b59624b60f492fcd4727a16a6b5a5deaef;p=wimlib

tools/afl-fuzz: fix ctype calculation
---

diff --git a/tools/afl-fuzz/compress/fuzz.c b/tools/afl-fuzz/compress/fuzz.c
index ccda14b3..4c911725 100644
--- a/tools/afl-fuzz/compress/fuzz.c
+++ b/tools/afl-fuzz/compress/fuzz.c
@@ -30,7 +30,7 @@ int main(int argc, char *argv[])
 	assert(ret == 1);
 	ret = read(fd, &level, 1);
 	assert(ret == 1);
-	ctype = 1 + ((ctype - 1) % 3); /* 1-3 */
+	ctype = 1 + ((uint8_t)(ctype - 1) % 3); /* 1-3 */
 	level = 1 + (level % 100); /* 1-100 */
 	usize = stbuf.st_size - 2;
 
diff --git a/tools/afl-fuzz/decompress/fuzz.c b/tools/afl-fuzz/decompress/fuzz.c
index 546a695e..b3d4b90c 100644
--- a/tools/afl-fuzz/decompress/fuzz.c
+++ b/tools/afl-fuzz/decompress/fuzz.c
@@ -25,7 +25,7 @@ int main(int argc, char *argv[])
 		return 0;
 	ret = read(fd, &ctype, 1);
 	assert(ret == 1);
-	ctype = 1 + ((ctype - 1) % 3); /* 1-3 */
+	ctype = 1 + ((uint8_t)(ctype - 1) % 3); /* 1-3 */
 	csize = stbuf.st_size - 1;
 	uspace = csize * 8;