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Improve tempfile generation of fuzzer_metadata

This commit is contained in:
Martijn van Beurden 2022-07-16 14:09:17 +02:00
parent 5186025b94
commit d3b8947b73
1 changed files with 4 additions and 13 deletions
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17
oss-fuzz/fuzzer_metadata.cc
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@ -33,7 +33,6 @@
#include <cstdio>
#include <cstring> /* for memcpy */
#include <unistd.h>
#include <fcntl.h>
#include "FLAC++/metadata.h"
#define CONFIG_LENGTH 1
@ -47,7 +46,7 @@ static void run_tests_with_level_2_interface(char filename[], bool ogg, bool use
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
uint8_t command_length;
char filename[] = "/tmp/tmp-0.flac";
char filename[] = "/tmp/tmpXXXXXX.flac";
FLAC__bool init_bools[4];
/* Use first byte for configuration, leave at least one byte of input */
@ -67,18 +66,10 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
/* Dump input to file */
{
int file_to_fuzz;
int tries = 0;
while (1) {
filename[9] = (char)(tries+48);
file_to_fuzz = open(filename, O_CREAT | O_WRONLY | O_EXCL, S_IRUSR | S_IWUSR);
if (file_to_fuzz >= 0)
break;
int file_to_fuzz = mkstemps(filename, 5);
tries++;
if (tries >= 10)
abort();
}
if (file_to_fuzz < 0)
abort();
write(file_to_fuzz,data+CONFIG_LENGTH+command_length,size-CONFIG_LENGTH-command_length);
close(file_to_fuzz);
}