add fuzz_string_length

meson.build

@@ -405,7 +405,7 @@ executable(
 # Note: this target must be built with clang!
 executable(
     'fuzz_wordsplit',
-    fuzzing_sources,
+    fuzz_wordsplit_sources,
     include_directories : includes,
     link_with : [libcommon],
     dependencies : [],
@@ -413,6 +413,18 @@ executable(
     link_args : ['-fsanitize=fuzzer,address', '-ggdb', '-O0', '-fno-omit-frame-pointer'],
 )
 
+# Note: this target must be built with clang!
+executable(
+    'fuzz_string_length',
+    [fuzz_string_length_sources, pacman_sources],
+    include_directories : includes,
+    link_with : [libalpm_a, libcommon],
+    dependencies : [],
+    c_args : ['-fsanitize=fuzzer,address', '-ggdb', '-O0', '-fno-omit-frame-pointer', '-DFUZZING_PACMAN'],
+    link_args : ['-fsanitize=fuzzer,address', '-ggdb', '-O0', '-fno-omit-frame-pointer'],
+)
+
+
 foreach wrapper : script_wrappers
   cdata = configuration_data()
   cdata.set_quoted('BASH', BASH.full_path())

src/fuzzing/fuzz_string_length.c

@@ -5,11 +5,14 @@
 #include <string.h>
 #include <wchar.h>
 
-#include "util.h"
+// TODO/FIXME: Fix the util.h include
+//#include "util.h"
+// And remove that function header from here
+size_t string_length(const char *s);
 
 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 
-static int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
     if (Size == 0)
         return 0;
 

src/fuzzing/meson.build

@@ -1,3 +1,7 @@
-fuzzing_sources = files('''
+fuzz_wordsplit_sources = files('''
   fuzz_wordsplit.c
 '''.split())
+
+fuzz_string_length_sources = files('''
+  fuzz_string_length.c
+'''.split())

src/pacman/pacman.c

@@ -1079,6 +1079,7 @@ static void cl_to_log(int argc, char *argv[])
 	}
 }
 
+#ifndef FUZZING_PACMAN
 /** Main function.
  * @param argc
  * @param argv
@@ -1273,3 +1274,4 @@ int main(int argc, char *argv[])
 	/* not reached */
 	return EXIT_SUCCESS;
 }
+#endif //FUZZING_PACMAN