[Xen-changelog] [xen master] tools/fuzz: add AFL stub program for libefl fuzzer

[patchbot@xxxxxxx]

commit a304574abe976d0353c179a8150a3e2b7f5bca17
Author:     Wei Liu <wei.liu2@xxxxxxxxxx>
AuthorDate: Fri Jan 20 11:57:58 2017 +0000
Commit:     Wei Liu <wei.liu2@xxxxxxxxxx>
CommitDate: Wed Jan 25 10:00:33 2017 +0000

    tools/fuzz: add AFL stub program for libefl fuzzer
    
    And hook it up into build system.
    
    Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
 .gitignore                            |  1 +
 tools/fuzz/libelf/Makefile            |  7 ++++-
 tools/fuzz/libelf/afl-libelf-fuzzer.c | 57 +++++++++++++++++++++++++++++++++++
 3 files changed, 64 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index b50f7ea..8810c69 100644
--- a/.gitignore
+++ b/.gitignore
@@ -146,6 +146,7 @@ tools/flask/utils/flask-loadpolicy
 tools/flask/utils/flask-setenforce
 tools/flask/utils/flask-set-bool
 tools/flask/utils/flask-label-pci
+tools/fuzz/libelf/afl-libelf-fuzzer
 tools/fuzz/x86_instruction_emulator/x86_emulate*
 tools/fuzz/x86_instruction_emulator/afl-x86-insn-emulator-fuzzer
 tools/helpers/_paths.h
diff --git a/tools/fuzz/libelf/Makefile b/tools/fuzz/libelf/Makefile
index c73ce44..3313601 100644
--- a/tools/fuzz/libelf/Makefile
+++ b/tools/fuzz/libelf/Makefile
@@ -19,6 +19,8 @@ libelf.a: $(ELF_LIB_OBJS)
 .PHONY: libelf-fuzzer-all
 libelf-fuzzer-all: libelf.a libelf-fuzzer.o
 
+afl-libelf-fuzzer: afl-libelf-fuzzer.o libelf-fuzzer.o $(ELF_LIB_OBJS)
+
 # Common targets
 .PHONY: all
 all: libelf-fuzzer-all
@@ -28,7 +30,10 @@ distclean: clean
 
 .PHONY: clean
 clean:
-       rm -f *.o *.a
+       rm -f *.o *.a *-libelf-fuzzer
 
 .PHONY: install
 install: all
+
+.PHONY: afl
+afl: afl-libelf-fuzzer
diff --git a/tools/fuzz/libelf/afl-libelf-fuzzer.c 
b/tools/fuzz/libelf/afl-libelf-fuzzer.c
new file mode 100644
index 0000000..b5668c1
--- /dev/null
+++ b/tools/fuzz/libelf/afl-libelf-fuzzer.c
@@ -0,0 +1,57 @@
+#include <assert.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int LLVMFuzzerTestOneInput(const uint8_t *data_p, size_t size);
+
+#define INPUT_SIZE  4096
+static uint8_t input[INPUT_SIZE];
+
+int main(int argc, char **argv)
+{
+    size_t size;
+    FILE *fp;
+
+    if ( argc != 2 )
+    {
+        printf("Expecting only one argument\n");
+        exit(-1);
+    }
+
+    fp = fopen(argv[1], "rb");
+    if ( fp == NULL )
+    {
+        perror("fopen");
+        exit(-1);
+    }
+
+    size = fread(input, 1, INPUT_SIZE, fp);
+
+    if ( ferror(fp) )
+    {
+        perror("fread");
+        exit(-1);
+    }
+
+    if ( !feof(fp) )
+    {
+        printf("Input too large\n");
+        exit(-1);
+    }
+
+    fclose(fp);
+
+    LLVMFuzzerTestOneInput(input, size);
+
+    return 0;
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
--
generated by git-patchbot for /home/xen/git/xen.git#master

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxx
https://lists.xenproject.org/xen-changelog