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#include <radamsa.h>
#include <stdio.h>
#include <inttypes.h>
#include <string.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
size_t filesize(char *filename) {
struct stat st;
stat(filename, &st);
return st.st_size;
}
#define BUFSIZE 1024 * 1024
void fail(char *why) {
printf("fail: %s\n", why);
exit(1);
}
void write_output(char *data, size_t len, int num) {
char path[32];
int fd;
int wrote;
sprintf(path, "/tmp/libradamsa-%d.fuzz", num);
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
printf("Opened %s -> %d\n", path, fd);
if (fd < 0) { fail("failed to open output file"); }
wrote = write(fd, data, len);
printf("wrote %d of %zu bytes\n", wrote, len);
if (wrote != len) { fail("failed to write all of output at once"); }
close(fd);
printf("Wrote %zu bytes to %s\n", len, path);
}
int main(int nargs, char **argv) {
char * spath = argv[1];
int fd = open(spath, O_RDONLY, 0);
size_t len;
char * input;
char * output;
int seed = 0;
if (fd < 0) { fail("cannot open input file"); }
len = filesize(spath);
input = malloc(len);
output = malloc(BUFSIZE);
if (!input || !output) { fail("failed to allocate buffers\n"); }
radamsa_init();
if (len != read(fd, input, len)) {
fail("failed to read the entire sample at once");
}
while (seed++ < 100) {
size_t n;
n = radamsa((uint8_t *)input, len, (uint8_t *)output, BUFSIZE, seed);
write_output(output, n, seed);
printf("Fuzzed %zu -> %zu bytes\n", len, n);
}
printf("library test passed\n");
free(output);
free(input);
return 0;
}
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