| /******************************************************************************/ |
| /* Copyright (c) Crackerjack Project., 2007 */ |
| /* */ |
| /* This program is free software; you can redistribute it and/or modify */ |
| /* it under the terms of the GNU General Public License as published by */ |
| /* the Free Software Foundation; either version 2 of the License, or */ |
| /* (at your option) any later version. */ |
| /* */ |
| /* This program is distributed in the hope that it will be useful, */ |
| /* but WITHOUT ANY WARRANTY; without even the implied warranty of */ |
| /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */ |
| /* the GNU General Public License for more details. */ |
| /* */ |
| /* You should have received a copy of the GNU General Public License */ |
| /* along with this program; if not, write to the Free Software Foundation, */ |
| /* Inc., 59 Temple Place, Suite TEST_SIG0, Boston, MA 02111-1307 USA */ |
| /* */ |
| /* History: Porting from Crackerjack to LTP is done by */ |
| /* Manas Kumar Nayak <maknayak@in.ibm.com> */ |
| /******************************************************************************/ |
| |
| /******************************************************************************/ |
| /* Description: This tests the rt_sigprocmask() syscall */ |
| /* rt_sigprocmask changes the list of currently blocked signals. */ |
| /* The set value stores the signal mask of the pending signals. */ |
| /* The previous action on the signal is saved in oact. The value */ |
| /* of how indicates how the call should behave; its values are */ |
| /* as follows: */ |
| /* */ |
| /* SIG_BLOCK */ |
| /* The set of blocked signals is the union of the current set*/ |
| /* and the set argument. */ |
| /* SIG_UNBLOCK */ |
| /* The signals in set are removed from the current set of */ |
| /* blocked signals. It is okay to unblock a signal that is */ |
| /* not blocked. */ |
| /* SIG_SETMASK */ |
| /* The set of blocked signals is set to the set argument. */ |
| /* sigsetsize should indicate the size of a sigset_t type. */ |
| /******************************************************************************/ |
| |
| #include <stdio.h> |
| #include <signal.h> |
| #include <errno.h> |
| |
| #include "test.h" |
| #include "linux_syscall_numbers.h" |
| #include "lapi/rt_sigaction.h" |
| |
| char *TCID = "rt_sigprocmask01"; |
| static int testno; |
| int TST_TOTAL = 8; |
| |
| static volatile sig_atomic_t sig_count; |
| |
| #define TEST_SIG SIGRTMIN+1 |
| |
| static void cleanup(void) |
| { |
| tst_rmdir(); |
| } |
| |
| static void setup(void) |
| { |
| TEST_PAUSE; |
| tst_tmpdir(); |
| } |
| |
| void sig_handler(int sig) |
| { |
| sig_count++; |
| } |
| |
| int main(int ac, char **av) |
| { |
| struct sigaction act, oact; |
| memset(&act, 0, sizeof(act)); |
| memset(&oact, 0, sizeof(oact)); |
| act.sa_handler = sig_handler; |
| |
| sigset_t set, oset; |
| int lc; |
| const char *msg; |
| |
| msg = parse_opts(ac, av, NULL, NULL); |
| if (msg != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); ++lc) { |
| tst_count = 0; |
| for (testno = 0; testno < TST_TOTAL; ++testno) { |
| |
| if (sigemptyset(&set) < 0) |
| tst_brkm(TFAIL | TERRNO, cleanup, |
| "sigemptyset call failed"); |
| |
| if (sigaddset(&set, TEST_SIG) < 0) |
| tst_brkm(TFAIL | TERRNO, cleanup, |
| "sigaddset call failed"); |
| |
| /* call rt_sigaction() */ |
| TEST(ltp_rt_sigaction(TEST_SIG, &act, &oact, |
| SIGSETSIZE)); |
| if (TEST_RETURN < 0) |
| tst_brkm(TFAIL | TTERRNO, cleanup, |
| "rt_sigaction call failed"); |
| |
| /* call rt_sigprocmask() to block signal#TEST_SIG */ |
| TEST(ltp_syscall(__NR_rt_sigprocmask, SIG_BLOCK, &set, |
| &oset, SIGSETSIZE)); |
| if (TEST_RETURN == -1) |
| tst_brkm(TFAIL | TTERRNO, cleanup, |
| "rt_sigprocmask call failed"); |
| |
| /* Make sure that the masked process is indeed |
| * masked. */ |
| if (kill(getpid(), TEST_SIG) < 0) |
| tst_brkm(TFAIL | TERRNO, cleanup, |
| "call to kill() failed"); |
| |
| if (sig_count) { |
| tst_brkm(TFAIL | TERRNO, cleanup, |
| "rt_sigprocmask() failed to change " |
| "the process's signal mask"); |
| } else { |
| /* call rt_sigpending() */ |
| TEST(ltp_syscall(__NR_rt_sigpending, &oset, |
| SIGSETSIZE)); |
| if (TEST_RETURN == -1) |
| tst_brkm(TFAIL | TTERRNO, cleanup, |
| "rt_sigpending call failed"); |
| |
| TEST(sigismember(&oset, TEST_SIG)); |
| if (TEST_RETURN == 0) |
| tst_brkm(TFAIL | TTERRNO, |
| cleanup, |
| "sigismember call failed"); |
| |
| /* call rt_sigprocmask() to unblock |
| * signal#TEST_SIG */ |
| TEST(ltp_syscall(__NR_rt_sigprocmask, |
| SIG_UNBLOCK, &set, &oset, |
| SIGSETSIZE)); |
| if (TEST_RETURN == -1) |
| tst_brkm(TFAIL | TTERRNO, |
| cleanup, |
| "rt_sigprocmask call failed"); |
| |
| if (sig_count) { |
| tst_resm(TPASS, |
| "rt_sigprocmask " |
| "functionality passed"); |
| break; |
| } else { |
| tst_brkm(TFAIL | TERRNO, |
| cleanup, |
| "rt_sigprocmask " |
| "functionality failed"); |
| } |
| } |
| |
| } |
| |
| tst_count++; |
| |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |