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Differential D29363 Diff 86107 contrib/netbsd-tests/lib/libc/setjmp/t_setjmp.c

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contrib/netbsd-tests/lib/libc/setjmp/t_setjmp.c

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The NetBSD Foundation, inc. All rights reserved."); The NetBSD Foundation, inc. All rights reserved.");
__RCSID("$NetBSD: t_setjmp.c,v 1.2 2017/01/14 21:08:17 christos Exp $"); __RCSID("$NetBSD: t_setjmp.c,v 1.2 2017/01/14 21:08:17 christos Exp $");
#include <sys/types.h> #include <sys/types.h>
#include <errno.h> #include <errno.h>
#include <setjmp.h> #include <setjmp.h>
#include <signal.h> #include <signal.h>
#include <stdbool.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <unistd.h> #include <unistd.h>
#include <atf-c.h> #include <atf-c.h>
#define REQUIRE_ERRNO(x) ATF_REQUIRE_MSG(x, "%s", strerror(errno)) #define REQUIRE_ERRNO(x) ATF_REQUIRE_MSG(x, "%s", strerror(errno))
#define TEST_SETJMP 0 #define TEST_SETJMP 0
#define TEST_U_SETJMP 1 #define TEST_U_SETJMP 1
#define TEST_SIGSETJMP_SAVE 2 #define TEST_SIGSETJMP_SAVE 2
#define TEST_SIGSETJMP_NOSAVE 3 #define TEST_SIGSETJMP_NOSAVE 3
#define TEST_LONGJMP_ZERO 4
#define TEST_U_LONGJMP_ZERO 5
static int expectsignal; static int expectsignal;
static void static void
aborthandler(int signo __unused) aborthandler(int signo __unused)
{ {
ATF_REQUIRE_MSG(expectsignal, "kill(SIGABRT) succeeded"); ATF_REQUIRE_MSG(expectsignal, "kill(SIGABRT) succeeded");
atf_tc_pass(); atf_tc_pass();
} }
static void static void
h_check(int test) h_check(int test)
{ {
struct sigaction sa; struct sigaction sa;
jmp_buf jb; jmp_buf jb;
sigjmp_buf sjb; sigjmp_buf sjb;
sigset_t ss; sigset_t ss;
int i, x; int i, x;
volatile bool did_longjmp;
i = getpid(); i = getpid();
did_longjmp = false;
if (test == TEST_SETJMP || test == TEST_SIGSETJMP_SAVE) if (test == TEST_SETJMP || test == TEST_SIGSETJMP_SAVE ||
test == TEST_LONGJMP_ZERO)
expectsignal = 0; expectsignal = 0;
else if (test == TEST_U_SETJMP || test == TEST_SIGSETJMP_NOSAVE) else if (test == TEST_U_SETJMP || test == TEST_SIGSETJMP_NOSAVE ||
test == TEST_U_LONGJMP_ZERO)
expectsignal = 1; expectsignal = 1;
else else
atf_tc_fail("unknown test"); atf_tc_fail("unknown test");
sa.sa_handler = aborthandler; sa.sa_handler = aborthandler;
sigemptyset(&sa.sa_mask); sigemptyset(&sa.sa_mask);
sa.sa_flags = 0; sa.sa_flags = 0;
REQUIRE_ERRNO(sigaction(SIGABRT, &sa, NULL) != -1); REQUIRE_ERRNO(sigaction(SIGABRT, &sa, NULL) != -1);
REQUIRE_ERRNO(sigemptyset(&ss) != -1); REQUIRE_ERRNO(sigemptyset(&ss) != -1);
REQUIRE_ERRNO(sigaddset(&ss, SIGABRT) != -1); REQUIRE_ERRNO(sigaddset(&ss, SIGABRT) != -1);
REQUIRE_ERRNO(sigprocmask(SIG_BLOCK, &ss, NULL) != -1); REQUIRE_ERRNO(sigprocmask(SIG_BLOCK, &ss, NULL) != -1);
if (test == TEST_SETJMP) if (test == TEST_SETJMP || test == TEST_LONGJMP_ZERO)
x = setjmp(jb); x = setjmp(jb);
else if (test == TEST_U_SETJMP) else if (test == TEST_U_SETJMP || test == TEST_U_LONGJMP_ZERO)
x = _setjmp(jb); x = _setjmp(jb);
else else
x = sigsetjmp(sjb, !expectsignal); x = sigsetjmp(sjb, !expectsignal);
if (x != 0) { if (x != 0) {
if (test == TEST_LONGJMP_ZERO || test == TEST_U_LONGJMP_ZERO)
ATF_REQUIRE_MSG(x == 1, "setjmp returned wrong value");
else
ATF_REQUIRE_MSG(x == i, "setjmp returned wrong value"); ATF_REQUIRE_MSG(x == i, "setjmp returned wrong value");
kill(i, SIGABRT); kill(i, SIGABRT);
ATF_REQUIRE_MSG(!expectsignal, "kill(SIGABRT) failed"); ATF_REQUIRE_MSG(!expectsignal, "kill(SIGABRT) failed");
atf_tc_pass(); atf_tc_pass();
} else if (did_longjmp) {
atf_tc_fail("setjmp returned zero after longjmp");
} }
REQUIRE_ERRNO(sigprocmask(SIG_UNBLOCK, &ss, NULL) != -1); REQUIRE_ERRNO(sigprocmask(SIG_UNBLOCK, &ss, NULL) != -1);
did_longjmp = true;
if (test == TEST_SETJMP) if (test == TEST_SETJMP)
longjmp(jb, i); longjmp(jb, i);
else if (test == TEST_LONGJMP_ZERO)
longjmp(jb, 0);
else if (test == TEST_U_SETJMP) else if (test == TEST_U_SETJMP)
_longjmp(jb, i); _longjmp(jb, i);
else if (test == TEST_U_LONGJMP_ZERO)
_longjmp(jb, 0);
else else
siglongjmp(sjb, i); siglongjmp(sjb, i);
atf_tc_fail("jmp failed"); atf_tc_fail("jmp failed");
} }
ATF_TC(setjmp); ATF_TC(setjmp);
ATF_TC_HEAD(setjmp, tc) ATF_TC_HEAD(setjmp, tc)
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{ {
atf_tc_set_md_var(tc, "descr", "Checks sigsetjmp(3) with savemask disabled"); atf_tc_set_md_var(tc, "descr", "Checks sigsetjmp(3) with savemask disabled");
} }
ATF_TC_BODY(sigsetjmp_nosave, tc) ATF_TC_BODY(sigsetjmp_nosave, tc)
{ {
h_check(TEST_SIGSETJMP_NOSAVE); h_check(TEST_SIGSETJMP_NOSAVE);
} }
ATF_TC(longjmp_zero);
ATF_TC_HEAD(longjmp_zero, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks longjmp(3) with a zero value");
}
ATF_TC_BODY(longjmp_zero, tc)
{
h_check(TEST_LONGJMP_ZERO);
}
ATF_TC(_longjmp_zero);
ATF_TC_HEAD(_longjmp_zero, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks _longjmp(3) with a zero value");
}
ATF_TC_BODY(_longjmp_zero, tc)
{
h_check(TEST_U_LONGJMP_ZERO);
}
ATF_TP_ADD_TCS(tp) ATF_TP_ADD_TCS(tp)
{ {
ATF_TP_ADD_TC(tp, setjmp); ATF_TP_ADD_TC(tp, setjmp);
ATF_TP_ADD_TC(tp, _setjmp); ATF_TP_ADD_TC(tp, _setjmp);
ATF_TP_ADD_TC(tp, sigsetjmp_save); ATF_TP_ADD_TC(tp, sigsetjmp_save);
ATF_TP_ADD_TC(tp, sigsetjmp_nosave); ATF_TP_ADD_TC(tp, sigsetjmp_nosave);
ATF_TP_ADD_TC(tp, longjmp_zero);
ATF_TP_ADD_TC(tp, _longjmp_zero);
return atf_no_error(); return atf_no_error();
} }