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/*-
* Copyright (c) 2003-2007 Tim Kientzle
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "test.h"
__FBSDID("$FreeBSD$");
DEFINE_TEST(test_read_pax_truncated)
{
struct archive_entry *ae;
struct archive *a;
size_t used, i, buff_size = 1000000;
size_t filedata_size = 100000;
char *buff = malloc(buff_size);
char *buff2 = malloc(buff_size);
char *filedata = malloc(filedata_size);
/* Create a new archive in memory. */
assert((a = archive_write_new()) != NULL);
assertA(0 == archive_write_set_format_pax(a));
assertA(0 == archive_write_set_compression_none(a));
assertEqualIntA(a, ARCHIVE_OK,
archive_write_open_memory(a, buff, buff_size, &used));
/*
* Write a file to it.
*/
assert((ae = archive_entry_new()) != NULL);
archive_entry_copy_pathname(ae, "file");
archive_entry_set_mode(ae, S_IFREG | 0755);
for (i = 0; i < filedata_size; i++)
filedata[i] = (unsigned char)rand();
archive_entry_set_atime(ae, 1, 2);
archive_entry_set_ctime(ae, 3, 4);
archive_entry_set_mtime(ae, 5, 6);
archive_entry_set_size(ae, filedata_size);
assertA(0 == archive_write_header(a, ae));
archive_entry_free(ae);
assertA((ssize_t)filedata_size
== archive_write_data(a, filedata, filedata_size));
/* Close out the archive. */
assertA(0 == archive_write_close(a));
#if ARCHIVE_VERSION_NUMBER < 2000000
archive_write_finish(a);
#else
assertA(0 == archive_write_finish(a));
#endif
/* Now, read back a truncated version of the archive and
* verify that we get an appropriate error. */
for (i = 1; i < used + 100; i += 100) {
assert((a = archive_read_new()) != NULL);
assertA(0 == archive_read_support_format_all(a));
assertA(0 == archive_read_support_compression_all(a));
assertA(0 == read_open_memory2(a, buff, i, 13));
if (i < 1536) {
assertEqualIntA(a, ARCHIVE_FATAL, archive_read_next_header(a, &ae));
goto wrap_up;
} else {
failure("Archive truncated to %d bytes", i);
assertEqualIntA(a, 0, archive_read_next_header(a, &ae));
}
if (i < 1536 + filedata_size) {
assertA(ARCHIVE_FATAL == archive_read_data(a, filedata, filedata_size));
goto wrap_up;
} else {
failure("Archive truncated to %d bytes", i);
assertEqualIntA(a, filedata_size,
archive_read_data(a, filedata, filedata_size));
}
/* Verify the end of the archive. */
/* Archive must be long enough to capture a 512-byte
* block of zeroes after the entry. (POSIX requires a
* second block of zeros to be written but libarchive
* does not return an error if it can't consume
* it.) */
if (i < 1536 + 512*((filedata_size + 511)/512) + 512) {
failure("i=%d minsize=%d", i,
1536 + 512*((filedata_size + 511)/512) + 512);
assertEqualIntA(a, ARCHIVE_FATAL,
archive_read_next_header(a, &ae));
} else {
assertEqualIntA(a, ARCHIVE_EOF,
archive_read_next_header(a, &ae));
}
wrap_up:
assert(0 == archive_read_close(a));
#if ARCHIVE_VERSION_NUMBER < 2000000
archive_read_finish(a);
#else
assert(0 == archive_read_finish(a));
#endif
}
/* Same as above, except skip the body instead of reading it. */
for (i = 1; i < used + 100; i += 100) {
assert((a = archive_read_new()) != NULL);
assertA(0 == archive_read_support_format_all(a));
assertA(0 == archive_read_support_compression_all(a));
assertA(0 == read_open_memory(a, buff, i, 7));
if (i < 1536) {
assertA(ARCHIVE_FATAL == archive_read_next_header(a, &ae));
goto wrap_up2;
} else {
assertEqualIntA(a, 0, archive_read_next_header(a, &ae));
}
if (i < 1536 + 512*((filedata_size+511)/512)) {
assertA(ARCHIVE_FATAL == archive_read_data_skip(a));
goto wrap_up2;
} else {
assertA(ARCHIVE_OK == archive_read_data_skip(a));
}
/* Verify the end of the archive. */
/* Archive must be long enough to capture a 512-byte
* block of zeroes after the entry. (POSIX requires a
* second block of zeros to be written but libarchive
* does not return an error if it can't consume
* it.) */
if (i < 1536 + 512*((filedata_size + 511)/512) + 512) {
assertEqualIntA(a, ARCHIVE_FATAL,
archive_read_next_header(a, &ae));
} else {
assertEqualIntA(a, ARCHIVE_EOF,
archive_read_next_header(a, &ae));
}
wrap_up2:
assert(0 == archive_read_close(a));
#if ARCHIVE_VERSION_NUMBER < 2000000
archive_read_finish(a);
#else
assert(0 == archive_read_finish(a));
#endif
}
/* Now, damage the archive in various ways and test the responses. */
/* Damage the first size field in the pax attributes. */
memcpy(buff2, buff, buff_size);
buff2[512] = '9';
buff2[513] = '9';
buff2[514] = 'A'; /* Non-digit in size. */
assert((a = archive_read_new()) != NULL);
assertA(0 == archive_read_support_format_all(a));
assertA(0 == archive_read_support_compression_all(a));
assertA(0 == archive_read_open_memory(a, buff2, used));
assertEqualIntA(a, ARCHIVE_WARN, archive_read_next_header(a, &ae));
assert(0 == archive_read_close(a));
#if ARCHIVE_VERSION_NUMBER < 2000000
archive_read_finish(a);
#else
assert(0 == archive_read_finish(a));
#endif
/* Damage the size field in the pax attributes. */
memcpy(buff2, buff, buff_size);
buff2[512] = 'A'; /* First character not a digit. */
assert((a = archive_read_new()) != NULL);
assertA(0 == archive_read_support_format_all(a));
assertA(0 == archive_read_support_compression_all(a));
assertA(0 == archive_read_open_memory(a, buff2, used));
assertEqualIntA(a, ARCHIVE_WARN, archive_read_next_header(a, &ae));
assert(0 == archive_read_close(a));
#if ARCHIVE_VERSION_NUMBER < 2000000
archive_read_finish(a);
#else
assert(0 == archive_read_finish(a));
#endif
/* Damage the size field in the pax attributes. */
memcpy(buff2, buff, buff_size);
for (i = 512; i < 520; i++) /* Size over 999999. */
buff2[i] = '9';
buff2[i] = ' ';
assert((a = archive_read_new()) != NULL);
assertA(0 == archive_read_support_format_all(a));
assertA(0 == archive_read_support_compression_all(a));
assertA(0 == archive_read_open_memory(a, buff2, used));
assertEqualIntA(a, ARCHIVE_WARN, archive_read_next_header(a, &ae));
assert(0 == archive_read_close(a));
#if ARCHIVE_VERSION_NUMBER < 2000000
archive_read_finish(a);
#else
assert(0 == archive_read_finish(a));
#endif
/* Damage the size field in the pax attributes. */
memcpy(buff2, buff, buff_size);
buff2[512] = '9'; /* Valid format, but larger than attribute area. */
buff2[513] = '9';
buff2[514] = '9';
buff2[515] = ' ';
assert((a = archive_read_new()) != NULL);
assertA(0 == archive_read_support_format_all(a));
assertA(0 == archive_read_support_compression_all(a));
assertA(0 == archive_read_open_memory(a, buff2, used));
assertEqualIntA(a, ARCHIVE_WARN, archive_read_next_header(a, &ae));
assert(0 == archive_read_close(a));
#if ARCHIVE_VERSION_NUMBER < 2000000
archive_read_finish(a);
#else
assert(0 == archive_read_finish(a));
#endif
/* Damage the size field in the pax attributes. */
memcpy(buff2, buff, buff_size);
buff2[512] = '1'; /* Too small. */
buff2[513] = ' ';
assert((a = archive_read_new()) != NULL);
assertA(0 == archive_read_support_format_all(a));
assertA(0 == archive_read_support_compression_all(a));
assertA(0 == archive_read_open_memory(a, buff2, used));
assertEqualIntA(a, ARCHIVE_WARN, archive_read_next_header(a, &ae));
assert(0 == archive_read_close(a));
#if ARCHIVE_VERSION_NUMBER < 2000000
archive_read_finish(a);
#else
assert(0 == archive_read_finish(a));
#endif
/* Damage the size field in the pax attributes. */
memcpy(buff2, buff, buff_size);
buff2[512] = ' '; /* No size given. */
assert((a = archive_read_new()) != NULL);
assertA(0 == archive_read_support_format_all(a));
assertA(0 == archive_read_support_compression_all(a));
assertA(0 == archive_read_open_memory(a, buff2, used));
assertEqualIntA(a, ARCHIVE_WARN, archive_read_next_header(a, &ae));
assert(0 == archive_read_close(a));
#if ARCHIVE_VERSION_NUMBER < 2000000
archive_read_finish(a);
#else
assert(0 == archive_read_finish(a));
#endif
/* Damage the ustar header. */
memcpy(buff2, buff, buff_size);
buff2[1024]++; /* Break the checksum. */
assert((a = archive_read_new()) != NULL);
assertA(0 == archive_read_support_format_all(a));
assertA(0 == archive_read_support_compression_all(a));
assertA(0 == archive_read_open_memory(a, buff2, used));
assertEqualIntA(a, ARCHIVE_FATAL, archive_read_next_header(a, &ae));
assert(0 == archive_read_close(a));
#if ARCHIVE_VERSION_NUMBER < 2000000
archive_read_finish(a);
#else
assert(0 == archive_read_finish(a));
#endif
/*
* TODO: Damage the ustar header in various ways and fixup the
* checksum in order to test boundary cases in the innermost
* ustar header parsing.
*/
free(buff);
free(buff2);
free(filedata);
}
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