1 /* 2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. 3 * AUTHOR : Bob Clark 4 * CO-PILOT : Barrie Kletscher 5 * DATE STARTED : 9/26/86 6 * Copyright (C) 2015 Cyril Hrubis <chrubis (at) suse.cz> 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of version 2 of the GNU General Public License as 10 * published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it would be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 15 * 16 * Further, this software is distributed without any warranty that it is 17 * free of the rightful claim of any third person regarding infringement 18 * or the like. Any license provided herein, whether implied or 19 * otherwise, applies only to this software file. Patent licenses, if 20 * any, provided herein do not apply to combinations of this program with 21 * other software, or any other product whatsoever. 22 * 23 * You should have received a copy of the GNU General Public License along 24 * with this program; if not, write the Free Software Foundation, Inc., 25 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 26 * 27 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 28 * Mountain View, CA 94043, or: 29 * 30 * http://www.sgi.com 31 * 32 * For further information regarding this notice, see: 33 * 34 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ 35 */ 36 /* 37 * TEST ITEMS 38 * 1. sighold action to turn off the receipt of all signals was done 39 * without error. 40 * 2. After signals were held, and sent, no signals were trapped. 41 */ 42 #define _XOPEN_SOURCE 500 43 #include <errno.h> 44 #include <signal.h> 45 #include <string.h> 46 #include <fcntl.h> 47 #include <stdlib.h> 48 #include <sys/types.h> 49 #include <sys/wait.h> 50 #include "test.h" 51 52 /* _XOPEN_SOURCE disables NSIG */ 53 #ifndef NSIG 54 # define NSIG _NSIG 55 #endif 56 57 /* Needed for NPTL */ 58 #define SIGCANCEL 32 59 #define SIGTIMER 33 60 61 /* ensure NUMSIGS is defined */ 62 #ifndef NUMSIGS 63 # define NUMSIGS NSIG 64 #endif 65 66 char *TCID = "sighold02"; 67 int TST_TOTAL = 2; 68 69 static int pid; 70 static void do_child(void); 71 static void setup(void); 72 static void cleanup(void); 73 74 static int sigs_catched; 75 static int sigs_map[NUMSIGS]; 76 77 static int skip_sig(int sig) 78 { 79 switch (sig) { 80 case SIGCLD: 81 case SIGKILL: 82 case SIGALRM: 83 case SIGSTOP: 84 case SIGCANCEL: 85 case SIGTIMER: 86 return 1; 87 default: 88 return 0; 89 } 90 } 91 92 int main(int ac, char **av) 93 { 94 int sig; 95 int lc; 96 97 tst_parse_opts(ac, av, NULL, NULL); 98 99 #ifdef UCLINUX 100 maybe_run_child(&do_child, ""); 101 #endif 102 103 setup(); 104 105 for (lc = 0; TEST_LOOPING(lc); lc++) { 106 if ((pid = FORK_OR_VFORK()) < 0) { 107 tst_brkm(TBROK | TERRNO, NULL, "fork() failed"); 108 } else if (pid > 0) { 109 TST_SAFE_CHECKPOINT_WAIT(NULL, 0); 110 111 for (sig = 1; sig < NUMSIGS; sig++) { 112 if (skip_sig(sig)) 113 continue; 114 if (kill(pid, sig) < 0) { 115 tst_brkm(TBROK | TERRNO, NULL, 116 "kill(%d, %d(%s)) failed", 117 pid, sig, tst_strsig(sig)); 118 } 119 } 120 121 TST_SAFE_CHECKPOINT_WAKE(NULL, 0); 122 tst_record_childstatus(cleanup, pid); 123 } else { 124 125 #ifdef UCLINUX 126 if (self_exec(av[0], "") < 0) { 127 tst_brkm(TBROK | TERRNO, NULL, 128 "self_exec() failed"); 129 } 130 #else 131 do_child(); 132 #endif 133 } 134 } 135 136 cleanup(); 137 tst_exit(); 138 } 139 140 static void handle_sigs(int sig) 141 { 142 sigs_map[sig] = 1; 143 sigs_catched++; 144 } 145 146 void do_child(void) 147 { 148 int cnt; 149 int sig; 150 151 /* set up signal handler routine */ 152 for (sig = 1; sig < NUMSIGS; sig++) { 153 if (skip_sig(sig)) 154 continue; 155 156 if (signal(sig, handle_sigs) == SIG_ERR) { 157 tst_resm(TBROK | TERRNO, "signal() %i(%s) failed", 158 sig, tst_strsig(sig)); 159 } 160 } 161 162 /* all set up to catch signals, now hold them */ 163 for (cnt = 0, sig = 1; sig < NUMSIGS; sig++) { 164 if (skip_sig(sig)) 165 continue; 166 cnt++; 167 TEST(sighold(sig)); 168 if (TEST_RETURN != 0) { 169 tst_resm(TBROK | TTERRNO, "sighold() %i(%s) failed", 170 sig, tst_strsig(sig)); 171 } 172 } 173 174 TST_SAFE_CHECKPOINT_WAKE_AND_WAIT(NULL, 0); 175 176 if (!sigs_catched) { 177 tst_resm(TPASS, "All signals were hold"); 178 tst_exit(); 179 } 180 181 tst_resm(TFAIL, "Signal handler was executed"); 182 183 for (sig = 1; sig < NUMSIGS; sig++) { 184 if (sigs_map[sig]) { 185 tst_resm(TINFO, "Signal %i(%s) catched", 186 sig, tst_strsig(sig)); 187 } 188 } 189 190 tst_exit(); 191 } 192 193 static void setup(void) 194 { 195 tst_sig(FORK, DEF_HANDLER, NULL); 196 197 tst_tmpdir(); 198 199 TST_CHECKPOINT_INIT(tst_rmdir); 200 201 TEST_PAUSE; 202 } 203 204 static void cleanup(void) 205 { 206 tst_rmdir(); 207 } 208
