| /* |
| * Copyright (c) 2005, Bull S.A.. All rights reserved. |
| * Created by: Sebastien Decugis |
| |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| |
| * This sample test aims to check the following assertions: |
| * |
| * sigaction returns -1 and errno is set to EINVAL if signal number is invalid |
| * or an attempt to do an operation which is not allowed is made. |
| |
| * The steps are: |
| * -> Try setting a signal handler for signal SIGRTMAX + 1 |
| * -> Try setting a signal handler for SIGKILL |
| * -> Try setting a signal handler for SIGSTOP |
| * -> Try ignoring SIGSTOP |
| * -> Try ignoring SIGKILL |
| |
| * The test fails if the signals are not delivered in FIFO order. |
| */ |
| |
| /* We are testing conformance to IEEE Std 1003.1, 2003 Edition */ |
| #define _POSIX_C_SOURCE 200112L |
| |
| /******************************************************************************/ |
| /*************************** standard includes ********************************/ |
| /******************************************************************************/ |
| #include <pthread.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <signal.h> |
| #include <errno.h> |
| |
| /******************************************************************************/ |
| /*************************** Test framework *******************************/ |
| /******************************************************************************/ |
| #include "../testfrmw/testfrmw.h" |
| #include "../testfrmw/testfrmw.c" |
| /* This header is responsible for defining the following macros: |
| * UNRESOLVED(ret, descr); |
| * where descr is a description of the error and ret is an int |
| * (error code for example) |
| * FAILED(descr); |
| * where descr is a short text saying why the test has failed. |
| * PASSED(); |
| * No parameter. |
| * |
| * Both three macros shall terminate the calling process. |
| * The testcase shall not terminate in any other maneer. |
| * |
| * The other file defines the functions |
| * void output_init() |
| * void output(char * string, ...) |
| * |
| * Those may be used to output information. |
| */ |
| |
| /******************************************************************************/ |
| /**************************** Configuration ***********************************/ |
| /******************************************************************************/ |
| #ifndef VERBOSE |
| #define VERBOSE 1 |
| #endif |
| |
| #define SIG_INVALID SIGRTMAX+10 |
| |
| /******************************************************************************/ |
| /*************************** Test case ***********************************/ |
| /******************************************************************************/ |
| |
| void handler(int signo) |
| { |
| return; |
| } |
| |
| /* main function */ |
| int main(void) |
| { |
| int ret; |
| |
| struct sigaction sa; |
| |
| /* Initialize output */ |
| output_init(); |
| |
| /* Set the signal handler */ |
| sa.sa_flags = 0; |
| |
| sa.sa_handler = handler; |
| |
| ret = sigemptyset(&sa.sa_mask); |
| |
| if (ret != 0) { |
| UNRESOLVED(ret, "Failed to empty signal set"); |
| } |
| |
| /* Install the signal handler for SIGRTMAX */ |
| #if VERBOSE > 0 |
| output("Trying to catch invalid signal %d\n", SIG_INVALID); |
| |
| #endif |
| ret = sigaction(SIG_INVALID, &sa, 0); |
| |
| if (ret == 0) { |
| output("Is signal %d valid on this implementation?\n", |
| SIG_INVALID); |
| FAILED("Setting handler for invalid signal did not fail"); |
| } |
| |
| if (errno != EINVAL) { |
| output("Got error %d (%s) instead of %d (%s)\n", |
| errno, strerror(errno), EINVAL, strerror(EINVAL)); |
| FAILED("Wrong error code returned"); |
| } |
| |
| /* Install the signal handler for SIGKILL */ |
| #if VERBOSE > 0 |
| output("Trying to catch unauthorized signal SIGKILL (%d)\n", SIGKILL); |
| |
| #endif |
| ret = sigaction(SIGKILL, &sa, 0); |
| |
| if (ret == 0) { |
| FAILED("Setting handler for SIGKILL did not fail"); |
| } |
| |
| if (errno != EINVAL) { |
| output("Got error %d (%s) instead of %d (%s)\n", |
| errno, strerror(errno), EINVAL, strerror(EINVAL)); |
| FAILED("Wrong error code returned"); |
| } |
| |
| /* Install the signal handler for SIGSTOP */ |
| #if VERBOSE > 0 |
| output("Trying to catch unauthorized signal SIGSTOP (%d)\n", SIGSTOP); |
| |
| #endif |
| ret = sigaction(SIGSTOP, &sa, 0); |
| |
| if (ret == 0) { |
| FAILED("Setting handler for SIGSTOP did not fail"); |
| } |
| |
| if (errno != EINVAL) { |
| output("Got error %d (%s) instead of %d (%s)\n", |
| errno, strerror(errno), EINVAL, strerror(EINVAL)); |
| FAILED("Wrong error code returned"); |
| } |
| |
| sa.sa_handler = SIG_IGN; |
| |
| /* Ingrore SIGKILL */ |
| #if VERBOSE > 0 |
| output("Trying to ignore unauthorized signal SIGKILL (%d)\n", SIGKILL); |
| |
| #endif |
| ret = sigaction(SIGKILL, &sa, 0); |
| |
| if (ret == 0) { |
| FAILED("Ignoring SIGKILL did not fail"); |
| } |
| |
| if (errno != EINVAL) { |
| output("Got error %d (%s) instead of %d (%s)\n", |
| errno, strerror(errno), EINVAL, strerror(EINVAL)); |
| FAILED("Wrong error code returned"); |
| } |
| |
| /* Ignore SIGSTOP */ |
| #if VERBOSE > 0 |
| output("Trying to ignore unauthorized signal SIGSTOP (%d)\n", SIGSTOP); |
| |
| #endif |
| ret = sigaction(SIGSTOP, &sa, 0); |
| |
| if (ret == 0) { |
| FAILED("Ignoring SIGSTOP did not fail"); |
| } |
| |
| if (errno != EINVAL) { |
| output("Got error %d (%s) instead of %d (%s)\n", |
| errno, strerror(errno), EINVAL, strerror(EINVAL)); |
| FAILED("Wrong error code returned"); |
| } |
| |
| /* Test passed */ |
| #if VERBOSE > 0 |
| |
| output("Test passed\n"); |
| |
| #endif |
| |
| PASSED; |
| } |