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#include "config.h"
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <grp.h>
#ifdef HAVE_SYS_SYSCALL_H
#include <sys/syscall.h>
#endif
#ifdef HAVE_SYSCALL_H
#include <syscall.h>
#endif
#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
static void test_uwrap_syscall_setgid(void **state)
{
long int rc;
gid_t g;
(void) state; /* unused */
rc = syscall(SYS_setgid, 1);
assert_int_equal(rc, 0);
g = getgid();
assert_int_equal(g, 1);
assert_int_equal(g, syscall(SYS_getgid));
}
static void test_uwrap_syscall_setregid(void **state)
{
long int rc;
gid_t g;
(void) state; /* unused */
rc = syscall(SYS_setregid, 2, 0);
assert_int_equal(rc, 0);
g = getegid();
assert_int_equal(g, 0);
#ifdef SYS_getegid /* not available on Solaris */
assert_int_equal(g, syscall(SYS_getegid));
#endif
rc = syscall(SYS_setregid, -1, 42);
assert_int_equal(rc, 0);
g = getgid();
assert_int_equal(g, 2);
g = getegid();
assert_int_equal(g, 42);
}
#if defined(SYS_setresgid)
static void test_uwrap_syscall_setresgid(void **state)
{
long int rc;
gid_t g;
gid_t g_r, g_e, g_s;
(void) state; /* unused */
rc = syscall(SYS_setresgid, 42, 0, -1);
assert_int_equal(rc, 0);
g = getegid();
assert_int_equal(g, 0);
#ifdef SYS_getresgid /* not available on Solaris */
rc = syscall(SYS_getresgid, &g_r, &g_e, &g_s);
assert_return_code(rc, errno);
assert_int_equal(g_r, 42);
assert_int_equal(g, g_e);
#endif
rc = syscall(SYS_setregid, -1, 42);
assert_return_code(rc, errno);
g = getegid();
assert_int_equal(g, 42);
}
#endif
#if defined(SYS_setgroups)
static void test_uwrap_syscall_setgroups(void **state)
{
gid_t glist[] = { 100, 200, 300, 400, 500 };
gid_t rlist[16];
int rc = -1;
(void) state; /* unused */
rc = syscall(SYS_setgroups, ARRAY_SIZE(glist), glist);
assert_int_equal(rc, 0);
rc = getgroups(ARRAY_SIZE(rlist), rlist);
assert_int_equal(rc, 5);
assert_memory_equal(glist, rlist, sizeof(glist));
/* Drop all supplementary groups. This is often done by daemons */
memset(rlist, 0, sizeof(rlist));
rc = syscall(SYS_setgroups, 0, NULL);
assert_int_equal(rc, 0);
rc = getgroups(ARRAY_SIZE(rlist), rlist);
assert_int_equal(rc, 0);
assert_int_equal(rlist[0], 0);
}
#endif
int main(void) {
int rc;
const struct CMUnitTest uwrap_tests[] = {
cmocka_unit_test(test_uwrap_syscall_setgid),
cmocka_unit_test(test_uwrap_syscall_setregid),
#if defined(SYS_setresgid)
cmocka_unit_test(test_uwrap_syscall_setresgid),
#endif
#if defined(SYS_setgroups)
cmocka_unit_test(test_uwrap_syscall_setgroups),
#endif
};
rc = cmocka_run_group_tests(uwrap_tests, NULL, NULL);
return rc;
}
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