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/*
american fuzzy lop++ - a trivial program to test the build
--------------------------------------------------------
Originally written by Michal Zalewski
Copyright 2014 Google Inc. All rights reserved.
Copyright 2019-2024 AFLplusplus Project. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
http://www.apache.org/licenses/LICENSE-2.0
*/
#include <dlfcn.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
typedef void (*fntestinstrlib)(char *buf, int len);
void testinstr(char *buf, int len) {
void *lib = dlopen("testinstrlib.so", RTLD_NOW);
if (lib == NULL) {
puts("Library not found");
abort();
}
fntestinstrlib fn = (fntestinstrlib)(dlsym(lib, "testinstrlib"));
if (fn == NULL) {
puts("Function not found");
abort();
}
fn(buf, len);
}
int main(int argc, char **argv) {
char * file;
int fd = -1;
off_t len;
char * buf = NULL;
size_t n_read;
int result = -1;
if (argc != 2) { return 1; }
do {
file = argv[1];
printf("file: %s\n", file);
dprintf(STDERR_FILENO, "Running: %s\n", file);
fd = open(file, O_RDONLY);
if (fd < 0) {
perror("open");
break;
}
len = lseek(fd, 0, SEEK_END);
if (len < 0) {
perror("lseek (SEEK_END)");
break;
}
if (lseek(fd, 0, SEEK_SET) != 0) {
perror("lseek (SEEK_SET)");
break;
}
printf("len: %ld\n", len);
buf = malloc(len);
if (buf == NULL) {
perror("malloc");
break;
}
n_read = read(fd, buf, len);
if (n_read != len) {
perror("read");
break;
}
dprintf(STDERR_FILENO, "Running: %s: (%zd bytes)\n", file, n_read);
testinstr(buf, len);
dprintf(STDERR_FILENO, "Done: %s: (%zd bytes)\n", file, n_read);
result = 0;
} while (false);
if (buf != NULL) { free(buf); }
if (fd != -1) { close(fd); }
return result;
}
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