darling-xnu/tests/xnu_quick_test.c
2023-05-16 21:41:14 -07:00

115 lines
3.2 KiB
C

#include <darwintest.h>
#include "xnu_quick_test_helpers.h"
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <mach/mach.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/sysctl.h>
#include <sys/wait.h>
T_GLOBAL_META(
T_META_NAMESPACE("xnu.quicktest"),
T_META_CHECK_LEAKS(false),
T_META_RUN_CONCURRENTLY(true)
);
char g_target_path[PATH_MAX];
T_DECL(syscall, "xnu_quick_test for syscall")
{
int my_fd = -1;
char * my_pathp;
kern_return_t my_kr;
T_SETUPBEGIN;
create_target_directory(TEST_DIRECTORY);
T_SETUPEND;
my_kr = vm_allocate((vm_map_t) mach_task_self(), (vm_address_t*)&my_pathp,
PATH_MAX, VM_FLAGS_ANYWHERE);
T_ASSERT_MACH_SUCCESS(my_kr, "Allocating vm to path %s", my_pathp);
*my_pathp = 0x00;
strcpy( my_pathp, &g_target_path[0] );
strcat( my_pathp, "/" );
/* create a test file */
T_ASSERT_MACH_SUCCESS( create_random_name( my_pathp, 1), "Create random test file" );
/* use an indirect system call to open our test file.
* I picked open since it uses a path pointer which grows to 64 bits in an LP64 environment.
*/
T_EXPECT_NE(my_fd = syscall( SYS_open, my_pathp, (O_RDWR | O_EXCL), 0 ),
-1, "Attempt to open file using indirect syscall %s", my_pathp);
if (my_fd != -1) {
close(my_fd);
}
if (my_pathp != NULL) {
remove(my_pathp);
vm_deallocate(mach_task_self(), (vm_address_t)my_pathp, PATH_MAX);
}
T_ATEND(remove_target_directory);
}
T_DECL(fork_wait4_exit,
"Tests forking off a process and waiting for the child to exit")
{
int my_err, my_status;
pid_t my_pid, my_wait_pid;
struct rusage my_usage;
strncpy(g_target_path, "/", 2);
/* spin off another process */
T_ASSERT_NE(my_pid = fork(), -1, "Fork off a process");
if (my_pid == 0) {
struct stat my_sb;
/* child process does very little then exits */
my_err = stat( &g_target_path[0], &my_sb );
T_WITH_ERRNO;
T_ASSERT_TRUE(my_err == 0, "stat call with path: \"%s\" returned \"%d\"", &g_target_path[0], errno);
exit( 44 );
}
/* parent process waits for child to exit */
T_ASSERT_NE(my_wait_pid = wait4( my_pid, &my_status, 0, &my_usage ), -1,
"Wait for child to exit\n");
/* wait4 should return our child's pid when it exits */
T_ASSERT_EQ(my_wait_pid, my_pid,
"wait4 should return our child's pid when it exits");
/* kind of just guessing on these values so if this fails we should take a closer
* look at the returned rusage structure.
*/
T_ASSERT_FALSE((my_usage.ru_utime.tv_sec > 1 ||
my_usage.ru_stime.tv_sec > 1 || my_usage.ru_majflt > 1000 ||
my_usage.ru_msgsnd > 100), "wait4 returned rusage structure");
T_ASSERT_TRUE((WIFEXITED( my_status ) && WEXITSTATUS( my_status ) == 44),
"check if wait4 returns right exit status");
}
T_DECL(getrusage, "check getrusage works")
{
struct rusage rubuf;
int ret = getrusage(RUSAGE_SELF, &rubuf);
T_ASSERT_POSIX_SUCCESS(ret, "getrusage for self");
T_EXPECT_LT(rubuf.ru_msgrcv, 1000, "upper bound on messages received");
T_EXPECT_GE(rubuf.ru_msgrcv, 0, "lower bound on messages reseived");
T_EXPECT_LT(rubuf.ru_nsignals, 1000, "upper bound on signals");
T_EXPECT_GE(rubuf.ru_nsignals, 0, "lower bound on signals");
}