Module Name: src
Committed By: christos
Date: Fri Sep 10 13:33:45 UTC 2021
Added Files:
src/lib/libedit/TEST: fuzz1.c
Log Message:
Add an LLVM fuzzing wrapper for the portable libedit (Christian Holler)
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/lib/libedit/TEST/fuzz1.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: src/lib/libedit/TEST/fuzz1.c
diff -u /dev/null src/lib/libedit/TEST/fuzz1.c:1.1
--- /dev/null Fri Sep 10 09:33:45 2021
+++ src/lib/libedit/TEST/fuzz1.c Fri Sep 10 09:33:45 2021
@@ -0,0 +1,63 @@
+/*
+ * build:
+ * CC=clang CXX=clang++ CFLAGS="-fsanitize=address,fuzzer-no-link -g" \
+ * CXXFLAGS="-fsanitize=address,fuzzer-no-link -g" ./configure && make
+ * run:
+ * LD_LIBRARY_PATH=../src/.libs/ .libs/fuzz1 -max_len=32 \
+ * -use_value_profile=1 -only_ascii=1
+ */
+#include <readline/readline.h>
+#include <locale.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int init = 0;
+
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+ if (!Size)
+ return 0;
+
+ if (!init) {
+ setlocale(LC_CTYPE, "");
+ stifle_history(7);
+ init = 1;
+ }
+
+ clear_history();
+
+ size_t lasti = 0;
+
+ for (size_t i = 0;; ++i) {
+ if (i == Size || Data[i] == '\n') {
+ if (i - lasti) {
+ char *s = (char *)malloc(i - lasti + 1);
+ memcpy(s, &Data[lasti], i - lasti);
+ s[i - lasti] = '\0';
+
+ char *expansion;
+ int result;
+
+#ifdef DEBUG
+ fprintf(stderr, "Calling history_expand: >%s<\n", s);
+#endif
+ result = history_expand(s, &expansion);
+
+ if (result < 0 || result == 2) {
+ /* Errors ignored */
+ } else {
+ add_history(expansion);
+ }
+ free(expansion);
+ free(s);
+ }
+ lasti = i + 1;
+ }
+
+ if (i == Size)
+ break;
+ }
+
+ return 0;
+}
