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#include "config.h"
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
#include <pthread.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <grp.h>
#include <errno.h>
#ifdef HAVE_SYS_SYSCALL_H
#include <sys/syscall.h>
#endif
#ifdef HAVE_SYSCALL_H
#include <syscall.h>
#endif
#define NUM_THREADS 10
#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
struct parm {
int id;
int ready;
};
pthread_mutex_t msg_mutex = PTHREAD_MUTEX_INITIALIZER;
static void *syscall_setreuid(void *arg)
{
long int rc;
uid_t u;
uid_t eu;
(void) arg; /* unused */
/* This load can help with revealing race conditions. */
for (eu = 1; eu < 2048; ++eu) {
rc = syscall(SYS_setreuid, -1, eu);
assert_return_code(rc, errno);
u = geteuid();
assert_int_equal(u, eu);
rc = syscall(SYS_setreuid, -1, 0);
assert_return_code(rc, errno);
}
rc = syscall(SYS_setreuid, -1, 666);
assert_return_code(rc, errno);
return NULL;
}
static void test_syscall_setreuid(void **state)
{
pthread_attr_t pthread_custom_attr;
pthread_t threads[NUM_THREADS];
uid_t u;
int i;
(void) state; /* unused */
pthread_attr_init(&pthread_custom_attr);
for (i = 0; i < NUM_THREADS; i++) {
pthread_create(&threads[i],
&pthread_custom_attr,
syscall_setreuid,
NULL);
}
for (i = 0; i < NUM_THREADS; i++) {
pthread_join(threads[i], NULL);
}
u = geteuid();
assert_int_equal(u, 0);
pthread_attr_destroy(&pthread_custom_attr);
}
int main(void) {
int rc;
const struct CMUnitTest thread_tests[] = {
cmocka_unit_test(test_syscall_setreuid),
};
rc = cmocka_run_group_tests(thread_tests, NULL, NULL);
return rc;
}
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