minix/test/test27.c
Thomas Veerman 27a2afc1e7 Clean up tests and do runtime test for max name length
- Remove unused code
- Use standard functions declared in common.c
- Change tests to do a runtime test for the max name length of a path
  component (aka NAME_MAX). The actual value might differ from the hard
  coded NAME_MAX depending on the file system used.
2011-08-26 13:16:16 +00:00

315 lines
9.5 KiB
C

/* test27: stat() fstat() Author: Jan-Mark Wams (jms@cs.vu.nl) */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <limits.h>
#include <string.h>
#include <limits.h>
#include <time.h>
#include <stdio.h>
#define MODE_MASK (S_IRWXU | S_IRWXG | S_IRWXO | S_ISUID | S_ISGID)
#define MAX_ERROR 4
#define ITERATIONS 2
#define System(cmd) if (system(cmd) != 0) printf("``%s'' failed\n", cmd)
#define Chdir(dir) if (chdir(dir) != 0) printf("Can't goto %s\n", dir)
#include "common.c"
int superuser;
char *MaxName; /* Name of maximum length */
char MaxPath[PATH_MAX];
char *ToLongName; /* Name of maximum +1 length */
char ToLongPath[PATH_MAX + 1];
_PROTOTYPE(void test27a, (void));
_PROTOTYPE(void test27b, (void));
_PROTOTYPE(void test27c, (void));
_PROTOTYPE(void makelongnames, (void));
int main(int argc, char *argv[])
{
int i, m = 0xFFFF;
start(27);
if (argc == 2) m = atoi(argv[1]);
superuser = (getuid() == 0);
makelongnames();
for (i = 0; i < ITERATIONS; i++) {
if (m & 0001) test27a();
if (m & 0002) test27b();
if (m & 0004) test27c();
}
quit();
}
void test27a()
{ /* Test Normal operation. */
struct stat st1, st2;
time_t time1, time2;
int fd, pfd[2];
subtest = 1;
time(&time1); /* get time before */
while (time1 >= time((time_t *)0))
; /* Wait for time to change. */
System("echo 7bytes > foo; chmod 4750 foo");
if (stat("foo", &st1) != 0) e(1); /* get foo's info */
time(&time2);
while (time2 >= time((time_t *)0))
; /* Wait for next second. */
time(&time2); /* get time after */
if ((st1.st_mode & MODE_MASK) != 04750) e(2);
if (st1.st_nlink != 1) e(3); /* check stat */
if (st1.st_uid != geteuid()) e(4);
#if defined(NGROUPS_MAX) && NGROUPS_MAX == 0
if (st1.st_gid != getegid()) e(5);
#endif /* defined(NGROUPS_MAX) && NGROUPS_MAX == 0 */
if (st1.st_size != (size_t) 7) e(6);
if (st1.st_atime <= time1) e(7);
if (st1.st_atime >= time2) e(8);
if (st1.st_ctime <= time1) e(9);
if (st1.st_ctime >= time2) e(10);
if (st1.st_mtime <= time1) e(11);
if (st1.st_mtime >= time2) e(12);
/* Compair stat and fstat. */
System("echo 7bytes > bar");
fd = open("bar", O_RDWR | O_APPEND); /* the bar is open! */
if (fd != 3) e(13); /* should be stderr + 1 */
if (stat("bar", &st1) != 0) e(14); /* get bar's info */
if (fstat(fd, &st2) != 0) e(15); /* get bar's info */
/* St1 en st2 should be the same. */
if (st1.st_dev != st2.st_dev) e(16);
if (st1.st_ino != st2.st_ino) e(17);
if (st1.st_mode != st2.st_mode) e(18);
if (st1.st_nlink != st2.st_nlink) e(19);
if (st1.st_uid != st2.st_uid) e(20);
if (st1.st_gid != st2.st_gid) e(21);
if (st1.st_size != st2.st_size) e(22);
if (st1.st_atime != st2.st_atime) e(23);
if (st1.st_ctime != st2.st_ctime) e(24);
if (st1.st_mtime != st2.st_mtime) e(25);
time(&time1); /* wait a sec. */
while (time1 >= time((time_t *)0))
;
System("chmod 755 bar"); /* chainge mode */
System("rm -f foobar; ln bar foobar"); /* chainge # links */
if (write(fd, "foo", 4) != 4) e(26); /* write a bit (or two) */
if (stat("bar", &st2) != 0) e(27); /* get new info */
if (st2.st_dev != st1.st_dev) e(28);
if (st2.st_ino != st1.st_ino) e(29); /* compair the fealds */
if ((st2.st_mode & MODE_MASK) != 0755) e(30);
if (!S_ISREG(st2.st_mode)) e(31);
if (st2.st_nlink != st1.st_nlink + 1) e(32);
if (st2.st_uid != st1.st_uid) e(33);
if (st2.st_gid != st1.st_gid) e(34);
if (st2.st_size != (size_t) 11) e(35);
if (st2.st_atime != st1.st_atime) e(36);
if (st2.st_ctime <= st1.st_ctime) e(37);
if (st2.st_mtime <= st1.st_mtime) e(38);
if (close(fd) != 0) e(39); /* sorry the bar is closed */
/* Check special file. */
if (stat("/dev/tty", &st1) != 0) e(40);
if (!S_ISCHR(st1.st_mode)) e(41);
#ifdef _MINIX
if (stat("/dev/ram", &st1) != 0) e(42);
if (!S_ISBLK(st1.st_mode)) e(43);
#endif
/* Check fifos. */
time(&time1);
while (time1 >= time((time_t *)0))
;
if (mkfifo("fifo", 0640) != 0) e(44);
if (stat("fifo", &st1) != 0) e(45); /* get fifo's info */
time(&time2);
while (time2 >= time((time_t *)0))
;
time(&time2);
if (!S_ISFIFO(st1.st_mode)) e(46);
if (st1.st_nlink != 1) e(47); /* check the stat info */
if (st1.st_uid != geteuid()) e(48);
#if defined(NGROUPS_MAX) && NGROUPS_MAX == 0
if (st1.st_gid != getegid()) e(49);
#endif /* defined(NGROUPS_MAX) && NGROUPS_MAX == 0 */
if (st1.st_size != (size_t) 0) e(50);
if (st1.st_atime <= time1) e(51);
if (st1.st_atime >= time2) e(52);
if (st1.st_ctime <= time1) e(53);
if (st1.st_ctime >= time2) e(54);
if (st1.st_mtime <= time1) e(55);
if (st1.st_mtime >= time2) e(56);
/* Note: the st_mode of a fstat on a pipe should contain a isfifo bit. */
/* Check pipes. */
time(&time1);
while (time1 >= time((time_t *)0))
;
if (pipe(pfd) != 0) e(57);
if (fstat(pfd[0], &st1) != 0) e(58); /* get pipe input info */
time(&time2);
while (time2 >= time((time_t *)0))
;
time(&time2);
if (!(S_ISFIFO(st1.st_mode))) e(59); /* check stat struct */
if (st1.st_uid != geteuid()) e(60);
if (st1.st_gid != getegid()) e(61);
if (st1.st_size != (size_t) 0) e(62);
if (st1.st_atime <= time1) e(63);
if (st1.st_atime >= time2) e(64);
if (st1.st_ctime <= time1) e(65);
if (st1.st_ctime >= time2) e(66);
if (st1.st_mtime <= time1) e(67);
if (st1.st_mtime >= time2) e(68);
if (fstat(pfd[1], &st1) != 0) e(69); /* get pipe output info */
if (!(S_ISFIFO(st1.st_mode))) e(70);
if (st1.st_uid != geteuid()) e(71);
if (st1.st_gid != getegid()) e(72);
if (st1.st_size != (size_t) 0) e(73);
if (st1.st_atime < time1) e(74);
if (st1.st_atime > time2) e(75);
if (st1.st_ctime < time1) e(76);
if (st1.st_ctime > time2) e(77);
if (st1.st_mtime < time1) e(78);
if (st1.st_mtime > time2) e(79);
if (close(pfd[0]) != 0) e(80);
if (close(pfd[1]) != 0) e(81);/* close pipe */
/* Check dirs. */
time(&time1);
while (time1 >= time((time_t *)0))
;
System("mkdir dir");
if (stat("dir", &st1) != 0) e(82); /* get dir info */
time(&time2);
while (time2 >= time((time_t *)0))
;
time(&time2);
if (!(S_ISDIR(st1.st_mode))) e(83); /* check stat struct */
if (st1.st_uid != geteuid()) e(84);
#if defined(NGROUPS_MAX) && NGROUPS_MAX == 0
if (st1.st_gid != getegid()) e(85);
#endif /* defined(NGROUPS_MAX) && NGROUPS_MAX == 0 */
if (st1.st_atime < time1) e(86);
if (st1.st_atime > time2) e(87);
if (st1.st_ctime < time1) e(88);
if (st1.st_ctime > time2) e(89);
if (st1.st_mtime < time1) e(90);
if (st1.st_mtime > time2) e(91);
System("rm -rf ../DIR_27/*");
}
void test27b()
{ /* Test maxima. */
struct stat st;
int fd;
subtest = 2;
/* Check stats on maximum length files names. */
if (mkdir(MaxName, 0777) != 0) e(1);
if (stat(MaxName, &st) != 0) e(2);
if ((fd = open(MaxName, O_RDONLY)) != 3) e(3);
if (fstat(fd, &st) != 0) e(4);
if (close(fd) != 0) e(5);
if (rmdir(MaxName) != 0) e(6);
if (stat(MaxPath, &st) != 0) e(7);
if ((fd = open(MaxPath, O_RDONLY)) != 3) e(8);
if (fstat(fd, &st) != 0) e(9);
if (close(fd) != 0) e(10);
System("rm -rf ../DIR_27/*");
}
void test27c()
{ /* Test error response. */
struct stat st;
int fd, i;
subtest = 3;
System("echo Hi > foo"); /* Make a file called foo. */
/* Check if a un searchable dir is handled ok. */
Chdir(".."); /* cd .. */
System("chmod 677 DIR_27"); /* no search permission */
if (stat("DIR_27/nono", &st) != -1) e(1);
if (superuser) {
if (errno != ENOENT) e(2); /* su has access */
}
if (!superuser) {
if (errno != EACCES) e(3); /* we don't ;-) */
}
System("chmod 777 DIR_27");
Chdir("DIR_27"); /* back to test dir */
/* Check on ToLongName etc. */
#ifdef _POSIX_NO_TRUNC
# if _POSIX_NO_TRUNC - 0 != -1
if (stat(ToLongName, &st) != -1) e(4); /* name is too long */
if (errno != ENAMETOOLONG) e(5);
# endif
#else
# include "error, this case requires dynamic checks and is not handled"
#endif
if (stat(ToLongPath, &st) != -1) e(6); /* path is too long */
if (errno != ENAMETOOLONG) e(7);
/* Test some common errors. */
if (stat("nono", &st) != -1) e(8); /* nono nonexistent */
if (errno != ENOENT) e(9);
if (stat("", &st) != -1) e(10); /* try empty */
if (errno != ENOENT) e(11);
if (stat("foo/bar", &st) != -1) e(12); /* foo is a file */
if (errno != ENOTDIR) e(13);
/* Test fstat on file descriptors that are not open. */
for (i = 3; i < 6; i++) {
if (fstat(i, &st) != -1) e(14);
if (errno != EBADF) e(15);
}
/* Test if a just closed file is `fstat()'-able. */
if ((fd = open("foo", O_RDONLY)) != 3) e(16); /* open foo */
if (fstat(fd, &st) != 0) e(17); /* get stat */
if (close(fd) != 0) e(18); /* close it */
if (fstat(fd, &st) != -1) e(19); /* get stat */
if (errno != EBADF) e(20);
System("rm -rf ../DIR_27/*");
}
void makelongnames()
{
register int i;
int max_name_length;
max_name_length = name_max("."); /* Aka NAME_MAX, but not every FS supports
* the same length, hence runtime check */
MaxName = malloc(max_name_length + 1);
ToLongName = malloc(max_name_length + 1 + 1); /* Name of maximum +1 length */
memset(MaxName, 'a', max_name_length);
MaxName[max_name_length] = '\0';
for (i = 0; i < PATH_MAX - 1; i++) { /* idem path */
MaxPath[i++] = '.';
MaxPath[i] = '/';
}
MaxPath[PATH_MAX - 1] = '\0';
strcpy(ToLongName, MaxName); /* copy them Max to ToLong */
strcpy(ToLongPath, MaxPath);
ToLongName[max_name_length] = 'a';
ToLongName[max_name_length+1] = '\0';/* extend ToLongName by one too many */
ToLongPath[PATH_MAX - 1] = '/';
ToLongPath[PATH_MAX] = '\0'; /* inc ToLongPath by one */
}