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minix/test/test16.c
Evgeniy Ivanov 255ae85b1e Fix time modification on truncate() 
POSIX truncate specification says "Upon successful completion, if
the *file size is changed*, this function shall mark for update the
st_ctime and st_mtime fields of the file." This patch prevents
changing of the date fields when the size stays the same.
2011-07-15 14:21:05 +00:00

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6.7 KiB
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/* test 16 */
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <utime.h>
#include <stdio.h>
#define MAX_ERROR 4
int errct, subtest, passes;
_PROTOTYPE(int main, (int argc, char *argv []));
_PROTOTYPE(void test16a, (void));
_PROTOTYPE(void get_times, (char *name, time_t *a, time_t *c, time_t *m));
_PROTOTYPE(void e, (int n));
_PROTOTYPE(void quit, (void));
int main(argc, argv)
int argc;
char *argv[];
{
int i, m;
m = (argc == 2 ? atoi(argv[1]) : 0xFFFF);
system("rm -rf DIR_16; mkdir DIR_16");
chdir("DIR_16");
printf("Test 16 ");
fflush(stdout);
for (i = 0; i < 4; i++) {
if (m & 0001) test16a();
passes++;
}
quit();
return(-1); /* impossible */
}
void test16a()
{
/* Test atime, ctime, and mtime. */
int fd, fd1, fd2, fd3, fd4;
time_t a, c, m, pa, pc, pm, xa, xc, xm, ya, yc, ym, za, zc, zm, ta, tc, tm;
time_t wa, wc, wm;
char buf[1024];
struct stat s;
subtest = 1;
if (passes > 0) return; /* takes too long to repeat this test */
if ( (fd = creat("T16.a", 0666)) < 0) e(1);
if (write(fd, buf, 1024) != 1024) e(2);
if (close(fd) < 0) e(3);
sleep(1); /* wait 1 sec before continuing */
if ( (fd = open("T16.a", O_RDONLY)) < 0) e(4);
if (read(fd, buf, 3) != 3) e(5);
if (close(fd) != 0) e(6);
if (stat("T16.a", &s) != 0) e(7);
a = s.st_atime;
c = s.st_ctime;
m = s.st_mtime;
if (a == 0) {
/* Almost certainly means we are running a V1 file system. */
printf(" (atime = 0. Probably V1 file system. V2 tests skipped.) ");
return;
}
/* Many system calls affect atime, ctime, and mtime. Test them. They
* fall into several groups. The members of each group can be tested
* together. Start with creat(), mkdir(), and mkfifo, all of which
* set all 3 times on the created object, and ctime and mtime of the dir.
*/
if ( (fd = creat("T16.b", 0666)) < 0) e(8);
if (close(fd) != 0) e(9);
get_times("T16.b", &a, &c, &m);
get_times(".", &pa, &pc, &pm);
if (a != c) e(10);
if (a != m) e(11);
if (a != pc) e(12);
if (a != pm) e(13);
if (unlink("T16.b") < 0) e(14);
/* Test the times for mkfifo. */
if ( (fd = mkfifo("T16.c", 0666)) != 0) e(15);
if (access("T16.c", R_OK | W_OK) != 0) e(16);
get_times("T16.c", &a, &c, &m);
get_times(".", &pa, &pc, &pm);
if (a != c) e(17);
if (a != m) e(18);
if (a != pc) e(19);
if (a != pm) e(20);
if (unlink("T16.c") < 0) e(21);
/* Test the times for mkdir. */
if (mkdir("T16.d", 0666) < 0) e(22);
get_times("T16.d", &a, &c, &m);
get_times(".", &pa, &pc, &pm);
if (a != c) e(23);
if (a != m) e(24);
if (a != pc) e(25);
if (a != pm) e(26);
sleep(1);
if (rmdir("T16.d") < 0) e(27);
get_times(".", &xa, &xc, &xm);
if (c == xc) e(28);
if (m == xm) e(29);
if (xc != xm) e(30);
/* Test open(file, O_TRUNC). */
if ( (fd = open("T16.e", O_WRONLY|O_CREAT, 0666)) < 0) e(31);
if (write(fd, buf, 1024) != 1024) e(32);
if (close(fd) != 0) e(33);
get_times("T16.e", &a, &c, &m);
get_times(".", &pa, &pc, &pm);
sleep(1);
if ( (fd = open("T16.e", O_WRONLY|O_TRUNC)) < 0) e(34);
get_times("T16.e", &xa, &xc, &xm);
get_times(".", &ya, &yc, &ym);
if (c != m) e(35);
if (pc != pm) e(36);
if (c == xc) e(37);
if (m == xm) e(38);
if (yc != pc) e(39);
if (ym != pm) e(40);
if (close(fd) != 0) e(41);
/* Test the times for link/unlink. */
get_times("T16.e", &a, &c, &m);
get_times(".", &ya, &yc, &ym);
sleep(1);
if (link("T16.e", "T16.f") != 0) e(42); /* second link */
get_times("T16.e", &xa, &xc, &xm);
get_times(".", &pa, &pc, &pm);
if (a != xa) e(43);
if (m != xm) e(44);
#ifndef V1_FILESYSTEM
if (c == xc) e(45);
#endif
if (ya != pa) e(46);
if (yc == pc) e(47);
if (ym == pm) e(48);
if (yc != ym) e(49);
if (pc != pm) e(50);
sleep(1);
if (unlink("T16.f") != 0) e(46);
get_times("T16.e", &a, &c, &m);
get_times(".", &ya, &yc, &ym);
if (a != xa) e(51);
if (m != xm) e(52);
#ifndef V1_FILESYSTEM
if (c == xc) e(53);
#endif
if (pa != ya) e(54);
if (pc == yc) e(55);
if (pm == ym) e(56);
if (yc != ym) e(57);
if (unlink("T16.e") != 0) e(58);
/* Test rename, read, write, chmod, utime. */
get_times(".", &pa, &pc, &pm);
if ( (fd = open("T16.g", O_RDWR|O_CREAT)) < 0) e(59);
if ( (fd1 = open("T16.h", O_WRONLY|O_CREAT, 0666)) < 0) e(60);
if ( (fd2 = open("T16.i", O_WRONLY|O_CREAT, 0666)) < 0) e(61);
if ( (fd3 = open("T16.j", O_WRONLY|O_CREAT, 0666)) < 0) e(62);
if ( (fd4 = open("T16.k", O_RDWR|O_CREAT, 0666)) < 0) e(63);
if (write(fd, buf, 1024) != 1024) e(64);
get_times("T16.g", &a, &c, &m);
get_times("T16.h", &pa, &pc, &pm);
get_times("T16.i", &xa, &xc, &xm);
get_times("T16.j", &ya, &yc, &ym);
get_times("T16.k", &za, &zc, &zm);
get_times(".", &wa, &wc, &wm);
sleep(1);
lseek(fd, 0L, SEEK_SET);
if (read(fd, buf, 35) != 35) e(65);
get_times("T16.g", &ta, &tc, &tm);
if (a == ta || c != tc || m != tm) e(66);
if (write(fd1, buf, 35) != 35) e(67);
get_times("T16.h", &ta, &tc, &tm);
if (pa != ta || pc == tc || pm == tm) e(69);
if (rename("T16.i", "T16.i1") != 0) e(70);
get_times("T16.i1", &ta, &tc, &tm);
if (xa != ta || xc != tc || xm != tm) e(71);
get_times(".", &a, &c, &m);
if (a != wa || c == wc || m == wm || wc != wm) e(72);
if (chmod("T16.j", 0777) != 0) e(73);
get_times("T16.j", &ta, &tc, &tm);
if (ya != ta || yc == tc || ym != tm) e(74);
if (utime("T16.k", (void *) 0) != 0) e(75);
get_times("T16.k", &ta, &tc, &tm);
if (za == ta || zc == tc) e(76);
if (close(fd) != 0) e(77);
if (close(fd1) != 0) e(78);
if (close(fd2) != 0) e(79);
if (close(fd3) != 0) e(80);
if (close(fd4) != 0) e(81);
if (unlink("T16.g") != 0) e(82);
if (unlink("T16.h") != 0) e(83);
if (unlink("T16.i1") != 0) e(84);
if (unlink("T16.j") != 0) e(85);
if (unlink("T16.k") != 0) e(86);
/* Test the times for truncate. */
if (system("echo 1 > T16.l") != 0) e(87);
stat("T16.l", &s);
get_times("T16.l", &a, &c, &m);
sleep(1);
truncate("T16.l", s.st_size);
get_times("T16.l", &ta, &tc, &tm);
if (a != ta || c != tc || m != tm) e(88);
}
void get_times(name, a, c, m)
char *name;
time_t *a, *c, *m;
{
struct stat s;
if (stat(name, &s) != 0) e(500);
*a = s.st_atime;
*c = s.st_ctime;
*m = s.st_mtime;
}
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*");
if (errct == 0) {
printf("ok\n");
exit(0);
} else {
printf("%d errors\n", errct);
exit(1);
}
}
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