[9] | 1 | /* test 5 */
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| 2 |
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| 3 | #include <sys/types.h>
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| 4 | #include <sys/wait.h>
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| 5 | #include <errno.h>
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| 6 | #include <fcntl.h>
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| 7 | #include <signal.h>
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| 8 | #include <stdlib.h>
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| 9 | #include <unistd.h>
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| 10 | #include <stdio.h>
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| 11 | #include <string.h>
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| 12 |
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| 13 | #define ITERATIONS 2
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| 14 | #define MAX_ERROR 4
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| 15 |
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| 16 | int errct;
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| 17 | int subtest;
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| 18 | int zero[1024];
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| 19 |
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| 20 | int sigmap[5] = {9, 10, 11};
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| 21 |
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| 22 | _PROTOTYPE(int main, (int argc, char *argv[]));
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| 23 | _PROTOTYPE(void test5a, (void));
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| 24 | _PROTOTYPE(void parent, (int childpid));
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| 25 | _PROTOTYPE(void child, (int parpid));
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| 26 | _PROTOTYPE(void func1, (int s));
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| 27 | _PROTOTYPE(void func8, (int s));
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| 28 | _PROTOTYPE(void func10, (int s));
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| 29 | _PROTOTYPE(void func11, (int s));
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| 30 | _PROTOTYPE(void test5b, (void));
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| 31 | _PROTOTYPE(void test5c, (void));
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| 32 | _PROTOTYPE(void test5d, (void));
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| 33 | _PROTOTYPE(void test5e, (void));
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| 34 | _PROTOTYPE(void test5f, (void));
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| 35 | _PROTOTYPE(void test5g, (void));
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| 36 | _PROTOTYPE(void funcalrm, (int s));
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| 37 | _PROTOTYPE(void test5h, (void));
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| 38 | _PROTOTYPE(void test5i, (void));
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| 39 | _PROTOTYPE(void ex, (void));
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| 40 | _PROTOTYPE(void e, (int n));
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| 41 | _PROTOTYPE(void quit, (void));
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| 42 |
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| 43 | #ifdef _ANSI
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| 44 | void (*Signal(int _sig, void (*_func)(int)))(int);
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| 45 | #define SIG_ZERO ((void (*)(int))0) /* default signal handling */
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| 46 | #else
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| 47 | sighandler_t Signal();
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| 48 | /* void (*Signal()) (); */
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| 49 | #define SIG_ZERO ((void (*)())0) /* default signal handling */
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| 50 | #endif
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| 51 |
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| 52 | _VOLATILE int childsigs, parsigs, alarms;
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| 53 |
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| 54 | int main(argc, argv)
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| 55 | int argc;
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| 56 | char *argv[];
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| 57 | {
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| 58 | int i, m = 0x7777;
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| 59 |
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| 60 | printf("Test 5 ");
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| 61 | fflush(stdout); /* have to flush for child's benefit */
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| 62 |
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| 63 | system("rm -rf DIR_05; mkdir DIR_05");
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| 64 | chdir("DIR_05");
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| 65 |
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| 66 | for (i = 0; i < ITERATIONS; i++) {
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| 67 | if (m & 0001) test5a();
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| 68 | if (m & 0002) test5b();
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| 69 | if (m & 0004) test5c();
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| 70 | if (m & 0010) test5d();
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| 71 | if (m & 0020) test5e();
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| 72 | if (m & 0040) test5f();
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| 73 | if (m & 0100) test5g();
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| 74 | if (m & 0200) test5h();
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| 75 | if (m & 0400) test5i();
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| 76 | }
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| 77 | quit();
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| 78 | return(-1); /* impossible */
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| 79 | }
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| 80 |
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| 81 | void test5a()
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| 82 | {
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| 83 | int parpid, childpid, flag, *zp;
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| 84 |
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| 85 | subtest = 0;
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| 86 | flag = 0;
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| 87 | for (zp = &zero[0]; zp < &zero[1024]; zp++)
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| 88 | if (*zp != 0) flag = 1;
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| 89 | if (flag) e(0); /* check if bss is cleared to 0 */
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| 90 | if (Signal(1, func1) == SIG_ERR) e(1);
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| 91 | if (Signal(10, func10) < SIG_ZERO) e(2);
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| 92 | parpid = getpid();
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| 93 | if (childpid = fork()) {
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| 94 | if (childpid < 0) ex();
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| 95 | parent(childpid);
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| 96 | } else {
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| 97 | child(parpid);
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| 98 | }
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| 99 | if (Signal(1, SIG_DFL) < SIG_ZERO) e(4);
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| 100 | if (Signal(10, SIG_DFL) < SIG_ZERO) e(5);
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| 101 | }
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| 102 |
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| 103 | void parent(childpid)
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| 104 | int childpid;
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| 105 | {
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| 106 | int i, pid;
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| 107 |
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| 108 | for (i = 0; i < 3; i++) {
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| 109 | if (kill(childpid, 1) < 0) e(6);
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| 110 | while (parsigs == 0);
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| 111 | parsigs--;
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| 112 | }
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| 113 | if ( (pid = wait(&i)) < 0) e(7);
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| 114 | if (i != 256 * 6) e(8);
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| 115 | }
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| 116 |
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| 117 | void child(parpid)
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| 118 | int parpid;
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| 119 | {
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| 120 |
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| 121 | int i;
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| 122 |
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| 123 | for (i = 0; i < 3; i++) {
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| 124 | while (childsigs == 0);
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| 125 | childsigs--;
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| 126 | if (kill(parpid, 10) < 0) e(9);
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| 127 | }
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| 128 | exit(6);
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| 129 | }
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| 130 |
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| 131 | void func1(s)
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| 132 | int s; /* for ANSI */
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| 133 | {
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| 134 | if (Signal(1, func1) < SIG_ZERO) e(10);
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| 135 | childsigs++;
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| 136 | }
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| 137 |
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| 138 | void func8(s)
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| 139 | int s;
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| 140 | {
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| 141 | }
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| 142 |
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| 143 | void func10(s)
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| 144 | int s; /* for ANSI */
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| 145 | {
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| 146 | if (Signal(10, func10) < SIG_ZERO) e(11);
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| 147 | parsigs++;
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| 148 | }
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| 149 |
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| 150 | void func11(s)
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| 151 | int s; /* for ANSI */
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| 152 | {
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| 153 | e(38);
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| 154 | }
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| 155 |
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| 156 | void test5b()
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| 157 | {
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| 158 | int cpid, n, pid;
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| 159 |
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| 160 | subtest = 1;
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| 161 | if ((pid = fork())) {
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| 162 | if (pid < 0) ex();
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| 163 | if ((pid = fork())) {
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| 164 | if (pid < 0) ex();
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| 165 | if (cpid = fork()) {
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| 166 | if (cpid < 0) ex();
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| 167 | if (kill(cpid, 9) < 0) e(12);
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| 168 | if (wait(&n) < 0) e(13);
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| 169 | if (wait(&n) < 0) e(14);
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| 170 | if (wait(&n) < 0) e(15);
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| 171 | } else {
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| 172 | pause();
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| 173 | while (1);
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| 174 | }
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| 175 | } else {
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| 176 | exit(0);
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| 177 | }
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| 178 | } else {
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| 179 | exit(0);
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| 180 | }
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| 181 | }
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| 182 |
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| 183 | void test5c()
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| 184 | {
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| 185 | int n, i, pid, wpid;
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| 186 |
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| 187 | /* Test exit status codes for processes killed by signals. */
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| 188 | subtest = 3;
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| 189 | for (i = 0; i < 2; i++) {
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| 190 | if (pid = fork()) {
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| 191 | if (pid < 0) ex();
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| 192 | sleep(2); /* wait for child to pause */
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| 193 | if (kill(pid, sigmap[i]) < 0) {
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| 194 | e(20);
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| 195 | exit(1);
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| 196 | }
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| 197 | if ((wpid = wait(&n)) < 0) e(21);
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| 198 | if ((n & 077) != sigmap[i]) e(22);
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| 199 | if (pid != wpid) e(23);
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| 200 | } else {
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| 201 | pause();
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| 202 | exit(0);
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| 203 | }
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| 204 | }
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| 205 | }
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| 206 |
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| 207 | void test5d()
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| 208 | {
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| 209 | /* Test alarm */
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| 210 |
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| 211 | int i;
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| 212 |
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| 213 | subtest = 4;
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| 214 | alarms = 0;
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| 215 | for (i = 0; i < 8; i++) {
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| 216 | Signal(SIGALRM, funcalrm);
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| 217 | alarm(1);
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| 218 | pause();
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| 219 | if (alarms != i + 1) e(24);
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| 220 | }
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| 221 | }
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| 222 |
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| 223 | void test5e()
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| 224 | {
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| 225 | /* When a signal knocks a processes out of WAIT or PAUSE, it is supposed to
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| 226 | * get EINTR as error status. Check that.
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| 227 | */
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| 228 | int n, j;
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| 229 |
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| 230 | subtest = 5;
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| 231 | if (Signal(8, func8) < SIG_ZERO) e(25);
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| 232 | if (n = fork()) {
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| 233 | /* Parent must delay to give child a chance to pause. */
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| 234 | if (n < 0) ex();
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| 235 | sleep(1);
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| 236 | if (kill(n, 8) < 0) e(26);
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| 237 | if (wait(&n) < 0) e(27);
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| 238 | if (Signal(8, SIG_DFL) < SIG_ZERO) e(28);
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| 239 | } else {
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| 240 | j = pause();
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| 241 | if (errno != EINTR && -errno != EINTR) e(29);
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| 242 | exit(0);
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| 243 | }
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| 244 | }
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| 245 |
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| 246 | void test5f()
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| 247 | {
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| 248 | int i, j, k, n;
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| 249 |
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| 250 | subtest = 6;
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| 251 | if (getuid() != 0) return;
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| 252 | n = fork();
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| 253 | if (n < 0) ex();
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| 254 | if (n) {
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| 255 | wait(&i);
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| 256 | i = (i >> 8) & 0377;
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| 257 | if (i != (n & 0377)) e(30);
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| 258 | } else {
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| 259 | i = getgid();
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| 260 | j = getegid();
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| 261 | k = (i + j + 7) & 0377;
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| 262 | if (setgid(k) < 0) e(31);
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| 263 | if (getgid() != k) e(32);
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| 264 | if (getegid() != k) e(33);
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| 265 | i = getuid();
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| 266 | j = geteuid();
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| 267 | k = (i + j + 1) & 0377;
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| 268 | if (setuid(k) < 0) e(34);
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| 269 | if (getuid() != k) e(35);
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| 270 | if (geteuid() != k) e(36);
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| 271 | i = getpid() & 0377;
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| 272 | if (wait(&j) != -1) e(37);
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| 273 | exit(i);
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| 274 | }
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| 275 | }
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| 276 |
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| 277 | void test5g()
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| 278 | {
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| 279 | int n;
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| 280 |
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| 281 | subtest = 7;
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| 282 | Signal(11, func11);
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| 283 | Signal(11, SIG_IGN);
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| 284 | n = getpid();
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| 285 | if (kill(n, 11) != 0) e(1);
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| 286 | Signal(11, SIG_DFL);
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| 287 | }
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| 288 |
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| 289 | void funcalrm(s)
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| 290 | int s; /* for ANSI */
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| 291 | {
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| 292 | alarms++;
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| 293 | }
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| 294 |
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| 295 | void test5h()
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| 296 | {
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| 297 | /* When a signal knocks a processes out of PIPE, it is supposed to
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| 298 | * get EINTR as error status. Check that.
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| 299 | */
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| 300 | int n, j, fd[2];
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| 301 |
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| 302 | subtest = 8;
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| 303 | unlink("XXX.test5");
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| 304 | if (Signal(8, func8) < SIG_ZERO) e(1);
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| 305 | pipe(fd);
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| 306 | if (n = fork()) {
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| 307 | /* Parent must delay to give child a chance to pause. */
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| 308 | if (n < 0) ex();
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| 309 | while (access("XXX.test5", 0) != 0) /* just wait */ ;
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| 310 | sleep(1);
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| 311 | unlink("XXX.test5");
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| 312 | if (kill(n, 8) < 0) e(2);
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| 313 | if (wait(&n) < 0) e(3);
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| 314 | if (Signal(8, SIG_DFL) < SIG_ZERO) e(4);
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| 315 | if (close(fd[0]) != 0) e(5);
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| 316 | if (close(fd[1]) != 0) e(6);
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| 317 | } else {
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| 318 | if (creat("XXX.test5", 0777) < 0) e(7);
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| 319 | j = read(fd[0], (char *) &n, 1);
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| 320 | if (errno != EINTR) e(8);
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| 321 | exit(0);
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| 322 | }
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| 323 | }
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| 324 |
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| 325 | void test5i()
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| 326 | {
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| 327 | int fd[2], pid, buf[10], n;
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| 328 |
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| 329 | subtest = 9;
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| 330 | pipe(fd);
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| 331 | unlink("XXXxxxXXX");
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| 332 |
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| 333 | if ( (pid = fork())) {
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| 334 | /* Parent */
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| 335 | /* Wait until child has started and has created the XXXxxxXXX file. */
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| 336 | while (access("XXXxxxXXX", 0) != 0) /* loop */ ;
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| 337 | sleep(1);
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| 338 | if (kill(pid, SIGKILL) != 0) e(1);
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| 339 | if (wait(&n) < 0) e(2);
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| 340 | if (close(fd[0]) != 0) e(3);
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| 341 | if (close(fd[1]) != 0) e(4);
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| 342 | } else {
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| 343 | if (creat("XXXxxxXXX", 0777) < 0) e(5);
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| 344 | read(fd[0], (char *) buf, 1);
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| 345 | e(5); /* should be killed by signal and not get here */
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| 346 | }
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| 347 | unlink("XXXxxxXXX");
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| 348 | }
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| 349 |
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| 350 | void ex()
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| 351 | {
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| 352 | int e = errno;
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| 353 | printf("Fork failed: %s (%d)\n", strerror(e), e);
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| 354 | exit(1);
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| 355 | }
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| 356 |
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| 357 | void e(n)
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| 358 | int n;
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| 359 | {
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| 360 | int err_num = errno; /* save errno in case printf clobbers it */
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| 361 |
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| 362 | printf("Subtest %d, error %d errno=%d ", subtest, n, errno);
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| 363 | errno = err_num; /* restore errno, just in case */
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| 364 | perror("");
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| 365 | if (errct++ > MAX_ERROR) {
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| 366 | printf("Too many errors; test aborted\n");
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| 367 | chdir("..");
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| 368 | system("rm -rf DIR*");
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| 369 | exit(1);
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| 370 | }
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| 371 | }
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| 372 |
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| 373 | #ifdef _ANSI
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| 374 | void (*Signal(int a, void (*b)(int)))(int)
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| 375 | #else
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| 376 | sighandler_t Signal(a, b)
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| 377 | int a;
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| 378 | void (*b)();
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| 379 | #endif
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| 380 | {
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| 381 | if (signal(a, (void (*) ()) b) == (void (*)()) -1)
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| 382 | return(SIG_ERR);
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| 383 | else
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| 384 | return(SIG_ZERO);
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| 385 | }
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| 386 |
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| 387 | void quit()
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| 388 | {
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| 389 |
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| 390 | chdir("..");
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| 391 | system("rm -rf DIR*");
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| 392 |
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| 393 | if (errct == 0) {
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| 394 | printf("ok\n");
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| 395 | exit(0);
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| 396 | } else {
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| 397 | printf("%d errors\n", errct);
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| 398 | exit(1);
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| 399 | }
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| 400 | }
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