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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* tar_istream3.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "config.h"
#include "io/file.h"
#include "tar/tar.h"
#include "util/test.h"
static const struct {
uint64_t offset;
size_t size;
int fill;
} regions[] = {
{ 0, 4096, 'A' },
{ 262144, 4096, 'B' },
{ 524288, 4096, 'C' },
{ 786432, 4096, 'D' },
{ 1048576, 4096, 'E' },
{ 1310720, 4096, 'F' },
{ 1572864, 4096, 'G' },
{ 1835008, 4096, 'H' },
};
static int byte_from_offset(uint64_t offset)
{
sqfs_u64 diff;
size_t i;
for (i = 0; i < sizeof(regions) / sizeof(regions[0]); ++i) {
if (offset >= regions[i].offset) {
diff = (offset - regions[i].offset);
if (diff < regions[i].size)
return regions[i].fill;
}
}
return '\0';
}
int main(int argc, char **argv)
{
unsigned char buffer[941];
tar_header_decoded_t hdr;
istream_t *fp, *ti;
uint64_t offset;
sqfs_s32 i, ret;
(void)argc; (void)argv;
fp = istream_open_file(STRVALUE(TESTPATH) "/" STRVALUE(TESTFILE));
TEST_NOT_NULL(fp);
TEST_ASSERT(read_header(fp, &hdr) == 0);
TEST_EQUAL_UI(hdr.mode, S_IFREG | 0644);
TEST_EQUAL_UI(hdr.uid, 01750);
TEST_EQUAL_UI(hdr.gid, 01750);
TEST_EQUAL_UI(hdr.actual_size, 2097152);
TEST_EQUAL_UI(hdr.record_size, 32768);
TEST_STR_EQUAL(hdr.name, "input.bin");
TEST_ASSERT(!hdr.unknown_record);
ti = tar_record_istream_create(fp, &hdr);
TEST_EQUAL_UI(((sqfs_object_t *)fp)->refcount, 2);
TEST_EQUAL_UI(((sqfs_object_t *)ti)->refcount, 1);
clear_header(&hdr);
offset = 0;
for (;;) {
ret = istream_read(ti, buffer, sizeof(buffer));
TEST_ASSERT(ret >= 0);
if (ret == 0)
break;
for (i = 0; i < ret; ++i) {
int ref_byte = byte_from_offset(offset + i);
if (buffer[i] != ref_byte) {
fprintf(stderr, "Byte at offset %llu should "
"be 0x%02X, but is 0x%02X\n",
(unsigned long long)(offset + i),
(unsigned int)ref_byte, buffer[i]);
return EXIT_FAILURE;
}
}
offset += ret;
TEST_ASSERT(offset <= 2097152);
}
TEST_EQUAL_UI(offset, 2097152);
sqfs_drop(ti);
TEST_EQUAL_UI(((sqfs_object_t *)fp)->refcount, 1);
sqfs_drop(fp);
return EXIT_SUCCESS;
}
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