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-rw-r--r--regress/misc/fuzz-harness/Makefile9
-rw-r--r--regress/misc/fuzz-harness/sshsigopt_fuzz.cc29
2 files changed, 36 insertions, 2 deletions
diff --git a/regress/misc/fuzz-harness/Makefile b/regress/misc/fuzz-harness/Makefile
index 6ab7d7217..744c1f8b2 100644
--- a/regress/misc/fuzz-harness/Makefile
+++ b/regress/misc/fuzz-harness/Makefile
@@ -7,7 +7,9 @@ CXXFLAGS=-O2 -g -Wall -Wextra -I ../../.. $(FUZZ_FLAGS)
7LDFLAGS=-L ../../.. -L ../../../openbsd-compat -g $(FUZZ_FLAGS) 7LDFLAGS=-L ../../.. -L ../../../openbsd-compat -g $(FUZZ_FLAGS)
8LIBS=-lssh -lopenbsd-compat -lcrypto $(FUZZ_LIBS) 8LIBS=-lssh -lopenbsd-compat -lcrypto $(FUZZ_LIBS)
9 9
10all: pubkey_fuzz sig_fuzz authopt_fuzz sshsig_fuzz 10TARGETS=pubkey_fuzz sig_fuzz authopt_fuzz sshsig_fuzz sshsigopt_fuzz
11
12all: $(TARGETS)
11 13
12.cc.o: 14.cc.o:
13 $(CXX) $(CXXFLAGS) -c $< -o $@ 15 $(CXX) $(CXXFLAGS) -c $< -o $@
@@ -24,5 +26,8 @@ authopt_fuzz: authopt_fuzz.o
24sshsig_fuzz: sshsig_fuzz.o 26sshsig_fuzz: sshsig_fuzz.o
25 $(CXX) -o $@ sshsig_fuzz.o ../../../sshsig.o $(LDFLAGS) $(LIBS) 27 $(CXX) -o $@ sshsig_fuzz.o ../../../sshsig.o $(LDFLAGS) $(LIBS)
26 28
29sshsigopt_fuzz: sshsigopt_fuzz.o
30 $(CXX) -o $@ sshsigopt_fuzz.o ../../../sshsig.o $(LDFLAGS) $(LIBS)
31
27clean: 32clean:
28 -rm -f *.o pubkey_fuzz sig_fuzz authopt_fuzz 33 -rm -f *.o $(TARGETS)
diff --git a/regress/misc/fuzz-harness/sshsigopt_fuzz.cc b/regress/misc/fuzz-harness/sshsigopt_fuzz.cc
new file mode 100644
index 000000000..7424fcbe3
--- /dev/null
+++ b/regress/misc/fuzz-harness/sshsigopt_fuzz.cc
@@ -0,0 +1,29 @@
1#include <stddef.h>
2#include <stdio.h>
3#include <stdint.h>
4#include <string.h>
5#include <stdlib.h>
6
7extern "C" {
8
9#include "sshsig.h"
10
11int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
12{
13 char *cp = (char *)malloc(size + 1);
14 struct sshsigopt *opts = NULL;
15
16 if (cp == NULL)
17 goto out;
18 memcpy(cp, data, size);
19 cp[size] = '\0';
20 if ((opts = sshsigopt_parse(cp, "libfuzzer", 0, NULL)) == NULL)
21 goto out;
22
23 out:
24 free(cp);
25 sshsigopt_free(opts);
26 return 0;
27}
28
29} // extern "C"