minix/test/test6.c

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C
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2005-04-21 16:53:53 +02:00
/* test 6 */
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#define MAX_ERROR 4
int errct;
int subtest = 1;
int zilch[5000];
char curdir[PATH_MAX];
_PROTOTYPE(int main, (int argc, char *argv []));
_PROTOTYPE(void test6a, (void));
_PROTOTYPE(void test6b, (void));
_PROTOTYPE(void test6c, (void));
_PROTOTYPE(void e, (int n));
_PROTOTYPE(void quit, (void));
int main(argc, argv)
int argc;
char *argv[];
{
char buffer[PATH_MAX + 1];
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int i, m = 0xFFFF;
sync();
if (geteuid() == 0 || getuid() == 0) {
realpath(argv[0], buffer);
execl("/usr/bin/su", "/usr/bin/su", "-", "ast", "-c", buffer, NULL);
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printf("Test 6 cannot run as root; test aborted\n");
exit(1);
}
if (argc == 2) m = atoi(argv[1]);
printf("Test 6 ");
fflush(stdout);
getcwd(curdir, PATH_MAX);
system("rm -rf DIR_06; mkdir DIR_06");
chdir("DIR_06");
for (i = 0; i < 70; i++) {
if (m & 00001) test6a();
if (m & 00002) test6b();
if (m & 00004) test6c();
}
quit();
return(-1); /* impossible */
}
void test6a()
{
/* Test sbrk() and brk(). */
char *addr, *addr2, *addr3;
int i, del, click, click2;
subtest = 1;
addr = sbrk(0);
addr = sbrk(0); /* force break to a click boundary */
for (i = 0; i < 10; i++) sbrk(7 * i);
for (i = 0; i < 10; i++) sbrk(-7 * i);
if (sbrk(0) != addr) e(1);
sbrk(30);
if (brk(addr) != 0) e(2);
if (sbrk(0) != addr) e(3);
del = 0;
do {
del++;
brk(addr + del);
addr2 = sbrk(0);
} while (addr2 == addr);
click = addr2 - addr;
sbrk(-1);
if (sbrk(0) != addr) e(4);
brk(addr);
if (sbrk(0) != addr) e(5);
del = 0;
do {
del++;
brk(addr - del);
addr3 = sbrk(0);
} while (addr3 == addr);
click2 = addr - addr3;
sbrk(1);
if (sbrk(0) != addr) e(6);
brk(addr);
if (sbrk(0) != addr) e(8);
if (click != click2) e(9);
brk(addr + 2 * click);
if (sbrk(0) != addr + 2 * click) e(10);
sbrk(3 * click);
if (sbrk(0) != addr + 5 * click) e(11);
sbrk(-5 * click);
if (sbrk(0) != addr) e(12);
}
void test6b()
{
int i, err;
subtest = 2;
signal(SIGQUIT, SIG_IGN);
err = 0;
for (i = 0; i < 5000; i++)
if (zilch[i] != 0) err++;
if (err > 0) e(1);
kill(getpid(), SIGQUIT);
}
void test6c()
{
/* Test mknod, chdir, chmod, chown, access. */
int i, j;
struct stat s;
subtest = 3;
if (getuid() != 0) return;
for (j = 0; j < 2; j++) {
umask(0);
if (chdir("/") < 0) e(1);
if (mknod("dir", 040700, 0) < 0) e(2);
if (link("/", "/dir/..") < 0) e(3);
if (mknod("T3a", 0777, 0) < 0) e(4);
if (mknod("/dir/T3b", 0777, 0) < 0) e(5);
if (mknod("dir/T3c", 0777, 0) < 0) e(6);
if ((i = open("/dir/T3b", 0)) < 0) e(7);
if (close(i) < 0) e(8);
if ((i = open("dir/T3c", O_RDONLY)) < 0) e(9);
if (close(i) < 0) e(10);
if (chdir("dir") < 0) e(11);
if ((i = open("T3b", 0)) < 0) e(12);
if (close(i) < 0) e(13);
if ((i = open("../T3a", O_RDONLY)) < 0) e(14);
if (close(i) < 0) e(15);
if ((i = open("../dir/../dir/../dir/../dir/../dir/T3c", O_RDONLY)) < 0)
e(16);
if (close(i) < 0) e(17);
if (chmod("../dir/../dir/../dir/../dir/../T3a", 0123) < 0) e(18);
if (stat("../dir/../dir/../dir/../T3a", &s) < 0) e(19);
if ((s.st_mode & 077777) != 0123) e(20);
if (chmod("../dir/../dir/../T3a", 0456) < 0) e(21);
if (stat("../T3a", &s) < 0) e(22);
if ((s.st_mode & 077777) != 0456) e(23);
if (chown("../dir/../dir/../T3a", 20, 30) < 0) e(24);
if (stat("../T3a", &s) < 0) e(25);
if (s.st_uid != 20) e(26);
if (s.st_gid != 30) e(27);
if ((i = open("/T3c", O_RDONLY)) >= 0) e(28);
if ((i = open("/T3a", O_RDONLY)) < 0) e(29);
if (close(i) < 0) e(30);
if (access("/T3a", 4) < 0) e(31);
if (access("/dir/T3b", 4) < 0) e(32);
if (access("/dir/T3d", 4) >= 0) e(33);
if (unlink("T3b") < 0) e(34);
if (unlink("T3c") < 0) e(35);
if (unlink("..") < 0) e(36);
if (chdir("/") < 0) e(37);
if (unlink("dir") < 0) e(38);
if (unlink("/T3a") < 0) e(39);
}
}
void e(n)
int n;
{
int err_num = errno; /* save errno in case printf clobbers it */
printf("Subtest %d, error %d errno=%d ", subtest, n, errno);
errno = err_num; /* restore errno, just in case */
perror("");
if (errct++ > MAX_ERROR) {
printf("Too many errors; test aborted\n");
chdir("..");
system("rm -rf DIR*");
exit(1);
}
}
void quit()
{
chdir("..");
system("rm -rf DIR*");
chdir(curdir);
system("rm -rf DIR*");
if (errct == 0) {
printf("ok\n");
exit(0);
} else {
printf("%d errors\n", errct);
exit(1);
}
}