Commit 416aafd14cd4e56db3d4ea6067881b29085af4bb
2018-10-09T02:33:03
fuzzers: Port config_file_fuzzer to the new in-memory backend
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81
diff --git a/fuzzers/config_file_fuzzer.c b/fuzzers/config_file_fuzzer.c
index 30a47bf..f0fa5e5 100644
--- a/fuzzers/config_file_fuzzer.c
+++ b/fuzzers/config_file_fuzzer.c
@@ -8,6 +8,7 @@
*/
#include <git2.h>
+#include "config_backend.h"
#include <stdlib.h>
#include <stdio.h>
@@ -25,9 +26,6 @@ int foreach_cb(const git_config_entry *entry, void *payload)
return 0;
}
-static char path[] = "/tmp/git.XXXXXX";
-static int fd = -1;
-
int LLVMFuzzerInitialize(int *argc, char ***argv)
{
UNUSED(argc);
@@ -35,10 +33,6 @@ int LLVMFuzzerInitialize(int *argc, char ***argv)
if (git_libgit2_init() < 0)
abort();
- fd = mkstemp(path);
- if (fd < 0) {
- abort();
- }
return 0;
}
@@ -46,30 +40,29 @@ int LLVMFuzzerInitialize(int *argc, char ***argv)
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
git_config *cfg = NULL;
+ git_config_backend *backend = NULL;
int err = 0;
- size_t total = 0;
- if (ftruncate(fd, 0) !=0 ) {
- abort();
- }
- if (lseek(fd, 0, SEEK_SET) != 0) {
- abort();
+ err = git_config_new(&cfg);
+ if (err != 0) {
+ goto out;
}
- while (total < size) {
- ssize_t written = write(fd, data, size);
- if (written < 0 && errno != EINTR)
- abort();
- if (written < 0)
- continue;
- total += written;
+ err = git_config_backend_from_string(&backend, (const char*)data, size);
+ if (err != 0) {
+ goto out;
}
-
- err = git_config_open_ondisk(&cfg, path);
- if (err == 0) {
- git_config_foreach(cfg, foreach_cb, NULL);
- git_config_free(cfg);
+ err = git_config_add_backend(cfg, backend, 0, NULL, 0);
+ if (err != 0) {
+ goto out;
}
+ // Now owned by the config
+ backend = NULL;
+
+ git_config_foreach(cfg, foreach_cb, NULL);
+ out:
+ git_config_backend_free(backend);
+ git_config_free(cfg);
return 0;
}