/*
* Copyright (c) 2021 Stefan Sperling <stsp@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/queue.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <err.h>
#include <unistd.h>
#include <getopt.h>
#include "got_error.h"
#include "got_opentemp.h"
#include "got_lib_deltify.h"
#ifndef nitems
#define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
#endif
static int
deltify_abc_axc(void)
{
const struct got_error *err = NULL;
size_t i;
FILE *base_file, *derived_file, *result_file;
struct got_delta_table *dt;
struct got_delta_instruction *deltas;
int ndeltas;
int have_nblocks = 0;
base_file = got_opentemp();
if (base_file == NULL)
return 1;
derived_file = got_opentemp();
if (derived_file == NULL)
return 1;
result_file = got_opentemp();
if (result_file == NULL)
return 1;
for (i = 0; i < GOT_DELTIFY_MAXCHUNK; i++) {
fputc('a', base_file);
fputc('a', derived_file);
}
for (i = 0; i < GOT_DELTIFY_MAXCHUNK; i++) {
fputc('b', base_file);
fputc('x', derived_file);
}
for (i = 0; i < GOT_DELTIFY_MAXCHUNK; i++) {
fputc('c', base_file);
fputc('c', derived_file);
}
rewind(base_file);
rewind(derived_file);
err = got_deltify_init(&dt, base_file, 0, 3 * GOT_DELTIFY_MAXCHUNK);
if (err)
goto done;
for (i = 0; i < dt->nalloc; i++) {
if (dt->blocks[i].len > 0)
have_nblocks++;
}
if (have_nblocks != dt->nblocks) {
err = got_error(GOT_ERR_BAD_DELTA);
goto done;
}
err = got_deltify(&deltas, &ndeltas, derived_file, 0,
3 * GOT_DELTIFY_MAXCHUNK, dt, base_file, 3 * GOT_DELTIFY_MAXCHUNK);
if (err)
goto done;
if (ndeltas != 3) {
err = got_error(GOT_ERR_BAD_DELTA);
goto done;
}
/* Copy 'aaaa...' from base file. */
if (!(deltas[0].copy == 1 && deltas[0].offset == 0 &&
deltas[0].len == GOT_DELTIFY_MAXCHUNK)) {
err = got_error(GOT_ERR_BAD_DELTA);
goto done;
}
/* Copy 'xxxx...' from derived file. */
if (!(deltas[1].copy == 0 && deltas[1].offset == GOT_DELTIFY_MAXCHUNK &&
deltas[1].len == GOT_DELTIFY_MAXCHUNK)) {
err = got_error(GOT_ERR_BAD_DELTA);
goto done;
}
/* Copy 'ccccc...' from base file. */
if (!(deltas[2].copy == 1 &&
deltas[2].offset == 2 * GOT_DELTIFY_MAXCHUNK &&
deltas[2].len == GOT_DELTIFY_MAXCHUNK)) {
err = got_error(GOT_ERR_BAD_DELTA);
goto done;
}
done:
got_deltify_free(dt);
fclose(base_file);
fclose(derived_file);
fclose(result_file);
return (err == NULL);
}
static int quiet;
#define RUN_TEST(expr, name) \
{ test_ok = (expr); \
if (!quiet) printf("test_%s %s\n", (name), test_ok ? "ok" : "failed"); \
failure = (failure || !test_ok); }
static void
usage(void)
{
fprintf(stderr, "usage: delta_test [-q]\n");
}
int
main(int argc, char *argv[])
{
int test_ok;
int failure = 0;
int ch;
while ((ch = getopt(argc, argv, "q")) != -1) {
switch (ch) {
case 'q':
quiet = 1;
break;
default:
usage();
return 1;
}
}
argc -= optind;
argv += optind;
if (argc != 0) {
usage();
return 1;
}
#ifndef PROFILE
if (pledge("stdio rpath wpath cpath unveil", NULL) == -1)
err(1, "pledge");
#endif
if (unveil(GOT_TMPDIR_STR, "rwc") != 0)
err(1, "unveil");
if (unveil(NULL, NULL) != 0)
err(1, "unveil");
RUN_TEST(deltify_abc_axc(), "deltify_abc_axc");
return failure ? 1 : 0;
}
