--- /dev/null
+/*
+ * Check how strace -e signal=set works.
+ *
+ * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+#include <assert.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+static pid_t pid;
+static uid_t uid;
+
+static void
+handler(int sig)
+{
+}
+
+static void
+test_sig(int signo, const char *name)
+{
+ const struct sigaction act = { .sa_handler = handler };
+
+ if (sigaction(signo, &act, NULL))
+ perror_msg_and_fail("sigaction: %d", signo);
+
+ sigset_t mask;
+ sigemptyset(&mask);
+ sigaddset(&mask, signo);
+ if (sigprocmask(SIG_UNBLOCK, &mask, NULL))
+ perror_msg_and_fail("sigprocmask: %d", signo);
+
+ if (kill(pid, signo))
+ perror_msg_and_fail("kill(%d, %d)", pid, signo);
+
+ if (name && *name)
+ printf("--- %s {si_signo=%s, si_code=SI_USER"
+ ", si_pid=%d, si_uid=%d} ---\n",
+ name, name, pid, uid);
+}
+
+int
+main(int ac, const char **av)
+{
+ assert(ac & 1);
+
+ pid = getpid();
+ uid = geteuid();
+
+ int i;
+ for (i = 1; i < ac; i += 2)
+ test_sig(atoi(av[i]), av[i + 1]);
+
+ puts("+++ exited with 0 +++");
+ return 0;
+}
--- /dev/null
+#!/bin/sh
+#
+# Check how strace -e signal=set works.
+#
+# Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+# derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+. "${srcdir=.}/init.sh"
+
+test_one_sig()
+{
+ local sigs
+ sigs="$1"; shift
+
+ run_prog "./$NAME" "$@" > /dev/null
+ run_strace -e trace=none -e signal="$sigs" "./$NAME" "$@" > "$EXP"
+ match_diff "$LOG" "$EXP"
+ rm -f "$EXP"
+}
+
+test_sigs()
+{
+ local first second sigs
+ first="$1"; shift
+ second="$1"; shift
+
+ for sigs; do
+ test_one_sig "$sigs" 2 "$first" 15 "$second"
+ done
+}
+
+test_sigs '' '' \
+ none '!all' \
+ CHLD SIGCHLD ALRM SIGALRM \
+ CHLD,SIGALRM ALRM,SIGCHLD \
+ 9 9,4 9,4,11 \
+ 4,CHLD,11,ALRM,9 \
+ '!2,15' '!INT,TERM' '!SIGINT,TERM' '!INT,SIGTERM' '!SIGTERM,SIGINT' \
+ '!2,INT,TERM' '!2,SIGTERM' '!SIGINT,15' '!INT,SIGTERM,15' \
+ '!2,4,15' '!15,9,2,11,4'
+
+test_sigs SIGINT '' \
+ 2 INT SIGINT \
+ CHLD,SIGINT SIGINT,SIGALRM \
+ ALRM,2,SIGCHLD \
+ '!15' '!TERM' '!SIGTERM' \
+ '!15,TERM' '!SIGTERM,15,TERM' \
+ '!SIGALRM,TERM' '!CHLD,SIGTERM' \
+ '!ALRM,15' '!SIGCHLD,ALRM,SIGTERM,KILL' \
+ '!4,15' '!15,9,11,4'
+
+test_sigs '' SIGTERM \
+ 15 TERM SIGTERM \
+ CHLD,SIGTERM SIGTERM,SIGALRM \
+ ALRM,15,SIGCHLD \
+ '!2' '!INT' '!SIGINT' \
+ '!2,INT' '!SIGINT,2,INT' \
+ '!SIGALRM,INT' '!CHLD,SIGINT' \
+ '!ALRM,2' '!SIGCHLD,ALRM,SIGINT,KILL' \
+ '!4,2' '!2,9,11,4'
+
+test_sigs SIGINT SIGTERM \
+ all '!none' \
+ INT,TERM SIGINT,TERM SIGTERM,INT SIGINT,SIGTERM \
+ 2,15 2,TERM SIGTERM,2 TERM,15,SIGINT,2 \
+ '!CHLD' '!SIGCHLD' '!ALRM' '!SIGALRM' \
+ '!CHLD,SIGALRM' '!ALRM,SIGCHLD' \
+ '!9' '!9,4' '!9,4,11' '!4,CHLD,11,ALRM,9'
+
+fail_with()
+{
+ dump_log_and_fail_with \
+ "strace -e signal=$* failed to handle an argument error properly"
+}
+
+for arg in ' ' invalid_signal_name SIG -1 256 1-1 \
+ 1,2,4,8,16,32,64,128,256,512,1024 9,chdir; do
+ $STRACE -e signal="$arg" true 2> "$LOG" &&
+ fail_with "$arg"
+ LC_ALL=C grep -F 'invalid signal' < "$LOG" > /dev/null ||
+ fail_with "$arg"
+done
+
+exit 0
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