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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "data-fd-util.h"
#include "fd-util.h"
#include "memory-util.h"
#include "process-util.h"
#include "tests.h"
#include "random-util.h"
static void test_acquire_data_fd_one(unsigned flags) {
char wbuffer[196*1024 - 7];
char rbuffer[sizeof(wbuffer)];
int fd;
fd = acquire_data_fd("foo", 3, flags);
assert_se(fd >= 0);
zero(rbuffer);
assert_se(read(fd, rbuffer, sizeof(rbuffer)) == 3);
assert_se(streq(rbuffer, "foo"));
fd = safe_close(fd);
fd = acquire_data_fd("", 0, flags);
assert_se(fd >= 0);
zero(rbuffer);
assert_se(read(fd, rbuffer, sizeof(rbuffer)) == 0);
assert_se(streq(rbuffer, ""));
fd = safe_close(fd);
random_bytes(wbuffer, sizeof(wbuffer));
fd = acquire_data_fd(wbuffer, sizeof(wbuffer), flags);
assert_se(fd >= 0);
zero(rbuffer);
assert_se(read(fd, rbuffer, sizeof(rbuffer)) == sizeof(rbuffer));
assert_se(memcmp(rbuffer, wbuffer, sizeof(rbuffer)) == 0);
fd = safe_close(fd);
}
TEST(acquire_data_fd) {
test_acquire_data_fd_one(0);
test_acquire_data_fd_one(ACQUIRE_NO_DEV_NULL);
test_acquire_data_fd_one(ACQUIRE_NO_MEMFD);
test_acquire_data_fd_one(ACQUIRE_NO_DEV_NULL|ACQUIRE_NO_MEMFD);
test_acquire_data_fd_one(ACQUIRE_NO_PIPE);
test_acquire_data_fd_one(ACQUIRE_NO_DEV_NULL|ACQUIRE_NO_PIPE);
test_acquire_data_fd_one(ACQUIRE_NO_MEMFD|ACQUIRE_NO_PIPE);
test_acquire_data_fd_one(ACQUIRE_NO_DEV_NULL|ACQUIRE_NO_MEMFD|ACQUIRE_NO_PIPE);
test_acquire_data_fd_one(ACQUIRE_NO_DEV_NULL|ACQUIRE_NO_MEMFD|ACQUIRE_NO_PIPE|ACQUIRE_NO_TMPFILE);
}
static void assert_equal_fd(int fd1, int fd2) {
for (;;) {
uint8_t a[4096], b[4096];
ssize_t x, y;
x = read(fd1, a, sizeof(a));
assert_se(x >= 0);
y = read(fd2, b, sizeof(b));
assert_se(y >= 0);
assert_se(x == y);
if (x == 0)
break;
assert_se(memcmp(a, b, x) == 0);
}
}
TEST(copy_data_fd) {
_cleanup_close_ int fd1 = -EBADF, fd2 = -EBADF;
_cleanup_(close_pairp) int sfd[2] = PIPE_EBADF;
_cleanup_(sigkill_waitp) pid_t pid = -1;
int r;
fd1 = open("/etc/fstab", O_RDONLY|O_CLOEXEC);
if (fd1 >= 0) {
fd2 = copy_data_fd(fd1);
assert_se(fd2 >= 0);
assert_se(lseek(fd1, 0, SEEK_SET) == 0);
assert_equal_fd(fd1, fd2);
}
fd1 = safe_close(fd1);
fd2 = safe_close(fd2);
fd1 = acquire_data_fd("hallo", 6, 0);
assert_se(fd1 >= 0);
fd2 = copy_data_fd(fd1);
assert_se(fd2 >= 0);
safe_close(fd1);
fd1 = acquire_data_fd("hallo", 6, 0);
assert_se(fd1 >= 0);
assert_equal_fd(fd1, fd2);
fd1 = safe_close(fd1);
fd2 = safe_close(fd2);
assert_se(socketpair(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, sfd) >= 0);
r = safe_fork("(sd-pipe)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid);
assert_se(r >= 0);
if (r == 0) {
/* child */
sfd[0] = safe_close(sfd[0]);
for (uint64_t i = 0; i < 1536*1024 / sizeof(uint64_t); i++)
assert_se(write(sfd[1], &i, sizeof(i)) == sizeof(i));
sfd[1] = safe_close(sfd[1]);
_exit(EXIT_SUCCESS);
}
sfd[1] = safe_close(sfd[1]);
fd2 = copy_data_fd(sfd[0]);
assert_se(fd2 >= 0);
uint64_t j;
for (uint64_t i = 0; i < 1536*1024 / sizeof(uint64_t); i++) {
assert_se(read(fd2, &j, sizeof(j)) == sizeof(j));
assert_se(i == j);
}
assert_se(read(fd2, &j, sizeof(j)) == 0);
}
DEFINE_TEST_MAIN(LOG_DEBUG);
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