freebsd-dev/usr.bin/tar/test/test_copy.c

338 lines
8.9 KiB
C

/*-
* 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 LOOP_MAX 170
static void
create_tree(void)
{
char buff[260];
char buff2[260];
int i;
int fd;
assertEqualInt(0, mkdir("original", 0775));
chdir("original");
assertEqualInt(0, mkdir("f", 0775));
assertEqualInt(0, mkdir("l", 0775));
assertEqualInt(0, mkdir("m", 0775));
assertEqualInt(0, mkdir("s", 0775));
assertEqualInt(0, mkdir("d", 0775));
for (i = 0; i < LOOP_MAX; i++) {
buff[0] = 'f';
buff[1] = '/';
/* Create a file named "f/abcdef..." */
buff[i + 2] = 'a' + (i % 26);
buff[i + 3] = '\0';
fd = open(buff, O_CREAT | O_WRONLY, 0644);
assert(fd >= 0);
assertEqualInt(i + 3, write(fd, buff, strlen(buff)));
close(fd);
/* Create a link named "l/abcdef..." to the above. */
strcpy(buff2, buff);
buff2[0] = 'l';
assertEqualInt(0, link(buff, buff2));
/* Create a link named "m/abcdef..." to the above. */
strcpy(buff2, buff);
buff2[0] = 'm';
assertEqualInt(0, link(buff, buff2));
#if !defined(_WIN32) || defined(__CYGWIN__)
/* Create a symlink named "s/abcdef..." to the above. */
strcpy(buff2 + 3, buff);
buff[0] = 's';
buff2[0] = '.';
buff2[1] = '.';
buff2[2] = '/';
assertEqualInt(0, symlink(buff2, buff));
#else
skipping("create a symlink to the above");
#endif
/* Create a dir named "d/abcdef...". */
buff[0] = 'd';
assertEqualInt(0, mkdir(buff, 0775));
}
chdir("..");
}
#define LIMIT_NONE 0
#define LIMIT_USTAR 1
static void
verify_tree(int limit)
{
struct stat st, st2;
char filename[260];
char name1[260];
char name2[260];
char contents[260];
int i, j, r;
int fd;
int len;
const char *p, *dp;
DIR *d;
struct dirent *de;
/* Generate the names we know should be there and verify them. */
for (i = 1; i < LOOP_MAX; i++) {
/* Generate a base name of the correct length. */
for (j = 0; j < i; ++j)
filename[j] = 'a' + (j % 26);
#if 0
for (n = i; n > 0; n /= 10)
filename[--j] = '0' + (n % 10);
#endif
filename[i] = '\0';
/* Verify a file named "f/abcdef..." */
strcpy(name1, "f/");
strcat(name1, filename);
if (limit != LIMIT_USTAR || strlen(filename) <= 100) {
fd = open(name1, O_RDONLY);
failure("Couldn't open \"%s\": %s",
name1, strerror(errno));
if (assert(fd >= 0)) {
len = read(fd, contents, i + 10);
close(fd);
assertEqualInt(len, i + 2);
/* Verify contents of 'contents' */
contents[len] = '\0';
failure("Each test file contains its own name");
assertEqualString(name1, contents);
/* stat() for dev/ino for next check */
assertEqualInt(0, lstat(name1, &st));
}
}
/*
* ustar allows 100 chars for links, and we have
* "original/" as part of the name, so the link
* names here can't exceed 91 chars.
*/
strcpy(name2, "l/");
strcat(name2, filename);
if (limit != LIMIT_USTAR || strlen(name2) <= 100) {
/* Verify hardlink "l/abcdef..." */
assertEqualInt(0, (r = lstat(name2, &st2)));
if (r == 0) {
assertEqualInt(st2.st_dev, st.st_dev);
assertEqualInt(st2.st_ino, st.st_ino);
}
/* Verify hardlink "m_abcdef..." */
name2[0] = 'm';
assertEqualInt(0, (r = lstat(name2, &st2)));
if (r == 0) {
assertEqualInt(st2.st_dev, st.st_dev);
assertEqualInt(st2.st_ino, st.st_ino);
}
}
#if !defined(_WIN32) || defined(__CYGWIN__)
/*
* Symlink text doesn't include the 'original/' prefix,
* so the limit here is 100 characters.
*/
/* Verify symlink "s/abcdef..." */
strcpy(name2, "../s/");
strcat(name2, filename);
if (limit != LIMIT_USTAR || strlen(name2) <= 100) {
/* This is a symlink. */
failure("Couldn't stat %s (length %d)",
filename, strlen(filename));
if (assertEqualInt(0, lstat(name2 + 3, &st2))) {
assert(S_ISLNK(st2.st_mode));
/* This is a symlink to the file above. */
failure("Couldn't stat %s", name2 + 3);
if (assertEqualInt(0, stat(name2 + 3, &st2))) {
assertEqualInt(st2.st_dev, st.st_dev);
assertEqualInt(st2.st_ino, st.st_ino);
}
}
}
#else
skipping("verify symlink");
#endif
/* Verify dir "d/abcdef...". */
strcpy(name1, "d/");
strcat(name1, filename);
if (limit != LIMIT_USTAR || strlen(filename) < 100) {
/* This is a dir. */
failure("Couldn't stat %s (length %d)",
name1, strlen(filename));
if (assertEqualInt(0, lstat(name1, &st2))) {
if (assert(S_ISDIR(st2.st_mode))) {
/* TODO: opendir/readdir this
* directory and make sure
* it's empty.
*/
}
}
}
}
/* Now make sure nothing is there that shouldn't be. */
for (dp = "dflms"; *dp != '\0'; ++dp) {
char dir[2];
dir[0] = *dp; dir[1] = '\0';
d = opendir(dir);
failure("Unable to open dir '%s'", dir);
if (!assert(d != NULL))
continue;
while ((de = readdir(d)) != NULL) {
p = de->d_name;
switch(dp[0]) {
case 'l': case 'm':
if (limit == LIMIT_USTAR) {
failure("strlen(p) = %d", strlen(p));
assert(strlen(p) <= 100);
}
case 'd':
if (limit == LIMIT_USTAR) {
failure("strlen(p)=%d", strlen(p));
assert(strlen(p) < 100);
}
case 'f': case 's':
if (limit == LIMIT_USTAR) {
failure("strlen(p)=%d", strlen(p));
assert(strlen(p) < 101);
}
/* Our files have very particular filename patterns. */
if (p[0] != '.' || (p[1] != '.' && p[1] != '\0')) {
for (i = 0; p[i] != '\0' && i < LOOP_MAX; i++) {
failure("i=%d, p[i]='%c' 'a'+(i%%26)='%c'", i, p[i], 'a' + (i % 26));
assertEqualInt(p[i], 'a' + (i % 26));
}
assert(p[i] == '\0');
}
break;
case '.':
assert(p[1] == '\0' || (p[1] == '.' && p[2] == '\0'));
break;
default:
failure("File %s shouldn't be here", p);
assert(0);
}
}
closedir(d);
}
}
static void
copy_basic(void)
{
int r;
assertEqualInt(0, mkdir("plain", 0775));
assertEqualInt(0, chdir("plain"));
/*
* Use the tar program to create an archive.
*/
r = systemf("%s cf archive -C ../original f d l m s >pack.out 2>pack.err",
testprog);
failure("Error invoking \"%s cf\"", testprog);
assertEqualInt(r, 0);
/* Verify that nothing went to stdout or stderr. */
assertEmptyFile("pack.err");
assertEmptyFile("pack.out");
/*
* Use tar to unpack the archive into another directory.
*/
r = systemf("%s xf archive >unpack.out 2>unpack.err", testprog);
failure("Error invoking %s xf archive", testprog);
assertEqualInt(r, 0);
/* Verify that nothing went to stdout or stderr. */
assertEmptyFile("unpack.err");
assertEmptyFile("unpack.out");
verify_tree(LIMIT_NONE);
assertEqualInt(0, chdir(".."));
}
static void
copy_ustar(void)
{
const char *target = "ustar";
int r;
assertEqualInt(0, mkdir(target, 0775));
assertEqualInt(0, chdir(target));
/*
* Use the tar program to create an archive.
*/
r = systemf("%s cf archive --format=ustar -C ../original f d l m s >pack.out 2>pack.err",
testprog);
failure("Error invoking \"%s cf archive --format=ustar\"", testprog);
assertEqualInt(r, 0);
/* Verify that nothing went to stdout. */
assertEmptyFile("pack.out");
/* Stderr is non-empty, since there are a bunch of files
* with filenames too long to archive. */
/*
* Use tar to unpack the archive into another directory.
*/
r = systemf("%s xf archive >unpack.out 2>unpack.err", testprog);
failure("Error invoking %s xf archive", testprog);
assertEqualInt(r, 0);
/* Verify that nothing went to stdout or stderr. */
assertEmptyFile("unpack.err");
assertEmptyFile("unpack.out");
chdir("original");
verify_tree(LIMIT_USTAR);
chdir("../..");
}
DEFINE_TEST(test_copy)
{
int oldumask;
oldumask = umask(0);
create_tree(); /* Create sample files in "original" dir. */
/* Test simple "tar -c | tar -x" pipeline copy. */
copy_basic();
/* Same, but constrain to ustar format. */
copy_ustar();
umask(oldumask);
}