kmx git

#include <git2.h>

#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <limits.h>

int foreach_cb(const git_config_entry *entry, void *payload) {
    return 0;
}

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
    static int fd = -1;
    static char path[] = "/tmp/git.XXXXXX";
    if (fd < 0) {
        git_libgit2_init();
        fd = mkstemp(path);
        if (fd < 0) {
            abort();
        }
    }
    if (ftruncate(fd, 0) !=0 ) {
        abort();
    }
    if (lseek(fd, 0, SEEK_SET) != 0) {
        abort();
    }
    if (write(fd, data, size) != size) {
        abort();
    }

    git_config *cfg;
    int err = git_config_open_ondisk(&cfg, path);
    if (err == 0) {
        git_config_foreach(cfg, foreach_cb, NULL);
        git_config_free(cfg);
    }

    return 0;
}
thodg/libgit2/fuzzers/config_file_fuzzer.c

Commit

fuzzers/config_file_fuzzer.c
