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minix/test/test25.c
Thomas Veerman a209c3ae12 Fix a ton of compiler warnings 
This patch fixes most of current reasons to generate compiler warnings.
The changes consist of:
 - adding missing casts
 - hiding or unhiding function declarations
 - including headers where missing
 - add __UNCONST when assigning a const char * to a char *
 - adding missing return statements
 - changing some types from unsigned to signed, as the code seems to want
   signed ints
 - converting old-style function definitions to current style (i.e.,
   void func(param1, param2) short param1, param2; {...} to
   void func (short param1, short param2) {...})
 - making the compiler silent about signed vs unsigned comparisons. We
   have too many of those in the new libc to fix.

A number of bugs in the test set were fixed. These bugs were never
triggered with our old libc. Consequently, these tests are now forced to
link with the new libc or they will generate errors (in particular tests 43
and 55).

Most changes in NetBSD libc are limited to moving aroudn "#ifndef __minix"
or stuff related to Minix-specific things (code in sys-minix or gen/minix).
2011-11-14 10:07:49 +00:00

711 lines
23 KiB
C
Raw Blame History

/* test25: open (), close () (p) Jan-Mark Wams. email: jms@cs.vu.nl */
/* Not tested: O_NONBLOCK on special files, supporting it.
** On a read-only file system, some error reports are to be expected.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <limits.h>
#include <errno.h>
#include <time.h>
#include <stdio.h>
#define MAX_ERROR 4
#define ITERATIONS 2
#include "common.c"
#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)
#define Stat(a,b) if (stat(a,b) != 0) printf("Can't stat %s\n", a)
#define Creat(f) if (close(creat(f,0777))!=0) printf("Can't creat %s\n",f)
#define Report(s,n) printf("Subtest %d" s,subtest,(n))
int subtest = 1;
int superuser;
char *MaxName; /* Name of maximum length */
char MaxPath[PATH_MAX]; /* Same for path */
char *ToLongName; /* Name of maximum +1 length */
char ToLongPath[PATH_MAX + 1]; /* Same for path, both too long */
_PROTOTYPE(void test25a, (void));
_PROTOTYPE(void test25b, (void));
_PROTOTYPE(void test25c, (void));
_PROTOTYPE(void test25d, (void));
_PROTOTYPE(void test25e, (void));
_PROTOTYPE(void makelongnames, (void));
int main(int argc, char *argv[])
{
int i, m = 0xFFFF;
sync();
start(25);
if (argc == 2) m = atoi(argv[1]);
makelongnames();
superuser = (geteuid() == 0);
/* Close all files, the parent might have opened. */
for (i = 3; i < 100; i++) close(i);
for (i = 0; i < ITERATIONS; i++) {
if (m & 001) test25a();
if (m & 002) test25b();
if (m & 004) test25c();
if (m & 010) test25d();
if (m & 020) test25e();
}
quit();
}
void test25a()
{ /* Test fcntl flags. */
subtest = 1;
#define EXCLUDE(a,b) (((a)^(b)) == ((a)|(b)))
#define ADDIT (O_APPEND | O_CREAT | O_EXCL | O_NONBLOCK | O_TRUNC)
/* If this compiles all flags are defined but they have to be or-able. */
if (!(EXCLUDE(O_NONBLOCK, O_TRUNC))) e(1);
if (!(EXCLUDE(O_EXCL, O_NONBLOCK | O_TRUNC))) e(2);
if (!(EXCLUDE(O_CREAT, O_EXCL | O_NONBLOCK | O_TRUNC))) e(3);
if (!(EXCLUDE(O_APPEND, O_CREAT | O_EXCL | O_NONBLOCK | O_TRUNC))) e(4);
if (!(EXCLUDE(O_RDONLY, ADDIT))) e(5);
if (!(EXCLUDE(O_WRONLY, ADDIT))) e(6);
if (!(EXCLUDE(O_RDWR, ADDIT))) e(7);
}
void test25b()
{ /* Test normal operation. */
#define BUF_SIZE 1024
int fd1, fd2, fd3, fd4, fd5;
char buf[BUF_SIZE];
struct stat st1, st2, st3;
time_t time1, time2;
int stat_loc;
subtest = 2;
System("rm -rf ../DIR_25/*");
System("echo Hello > he"); /* make test files */
System("echo Hello > ha"); /* size 6 bytes */
System("echo Hello > hi");
System("echo Hello > ho");
/* Check path resolution. Check if lowest fds are returned */
if ((fd1 = open("he", O_RDONLY)) != 3) e(1);
if (read(fd1, buf, BUF_SIZE) != 6) e(2);
if ((fd2 = open("./ha", O_RDONLY)) != 4) e(3);
if ((fd3 = open("../DIR_25/he", O_RDWR)) != 5) e(4);
if ((fd4 = open("ho", O_WRONLY)) != 6) e(5);
if (close(fd4) != 0) e(6);
if (close(fd1) != 0) e(7);
if ((fd1 = open("./././ho", O_RDWR)) != 3) e(8);
if ((fd4 = open("../DIR_25/he", O_RDONLY)) != 6) e(9);
if (close(fd2) != 0) e(10);
if (close(fd3) != 0) e(11);
if ((fd2 = open("ha", O_RDONLY)) != 4) e(12);
if ((fd3 = open("/etc/passwd", O_RDONLY)) != 5) e(13);
if (close(fd4) != 0) e(14); /* close all */
if (close(fd1) != 0) e(15);
if (close(fd3) != 0) e(16);
/* Check if processes share fd2, and if they have independent new fds */
System("rm -rf /tmp/sema.25");
switch (fork()) {
case -1: printf("Can't fork\n"); break;
case 0:
if ((fd1 = open("he", O_WRONLY)) != 3) e(17);
if ((fd3 = open("../././DIR_25/ha", O_WRONLY)) != 5) e(18);
if ((fd4 = open("../DIR_25/hi", O_WRONLY)) != 6) e(19);
if ((fd5 = open("ho", O_WRONLY)) != 7) e(20);
system("while test ! -f /tmp/sema.25; do sleep 1; done"); /* parent */
if (read(fd2, buf, BUF_SIZE) != 3) e(21); /* gets Hel */
if (strncmp(buf, "lo\n", 3) != 0) e(22); /* we get lo */
if (close(fd1) != 0) e(23);
if (close(fd2) != 0) e(24);
if (close(fd3) != 0) e(25);
if (close(fd4) != 0) e(26);
if (close(fd5) != 0) e(27);
exit(0);
default:
if ((fd1 = open("ha", O_RDONLY)) != 3) e(28);
if ((fd3 = open("./he", O_RDONLY)) != 5) e(29);
if ((fd4 = open("../DIR_25/hi", O_RDWR)) != 6) e(30);
if ((fd5 = open("ho", O_WRONLY)) != 7) e(31);
if (close(fd1) != 0) e(32);
if (read(fd2, buf, 3) != 3) e(33); /* get Hel */
Creat("/tmp/sema.25");
if (strncmp(buf, "Hel", 3) != 0) e(34);
if (close(fd2) != 0) e(35);
if (close(fd3) != 0) e(36);
if (close(fd4) != 0) e(37);
if (close(fd5) != 0) e(38);
if (wait(&stat_loc) == -1) e(39);
if (stat_loc != 0) e(40);
}
System("rm -f /tmp/sema.25");
/* Check if the file status information is updated correctly */
Stat("hi", &st1); /* get info */
Stat("ha", &st2); /* of files */
time(&time1);
while (time1 >= time((time_t *)0))
; /* wait a sec */
if ((fd1 = open("hi", O_RDONLY)) != 3) e(41); /* open files */
if ((fd2 = open("ha", O_WRONLY)) != 4) e(42);
if (read(fd1, buf, 1) != 1) e(43); /* read one */
if (close(fd1) != 0) e(44); /* close one */
Stat("hi", &st3); /* get info */
if (st1.st_uid != st3.st_uid) e(45);
if (st1.st_gid != st3.st_gid) e(46); /* should be same */
if (st1.st_mode != st3.st_mode) e(47);
if (st1.st_size != st3.st_size) e(48);
if (st1.st_nlink != st3.st_nlink) e(49);
if (st1.st_mtime != st3.st_mtime) e(50);
if (st1.st_ctime != st3.st_ctime) e(51);
#ifndef V1_FILESYSTEM
if (st1.st_atime >= st3.st_atime) e(52); /* except for atime. */
#endif
if (write(fd2, "Howdy\n", 6) != 6) e(53); /* Update c & mtime. */
if ((fd1 = open("ha", O_RDWR)) != 3) e(54);
if (read(fd1, buf, 6) != 6) e(55); /* Update atime. */
if (strncmp(buf, "Howdy\n", 6) != 0) e(56);
if (close(fd1) != 0) e(57);
Stat("ha", &st3);
if (st2.st_uid != st3.st_uid) e(58);
if (st2.st_gid != st3.st_gid) e(59); /* should be same */
if (st2.st_mode != st3.st_mode) e(60);
if (st2.st_nlink != st3.st_nlink) e(61);
if (st2.st_ctime >= st3.st_ctime) e(62);
#ifndef V1_FILESYSTEM
if (st2.st_atime >= st3.st_atime) e(63);
#endif
if (st2.st_mtime >= st3.st_mtime) e(64);
if (st2.st_size != st3.st_size) e(65);
if (close(fd2) != 0) e(66);
/* Let's see if RDONLY files are read only. */
if ((fd1 = open("hi", O_RDONLY)) != 3) e(67);
if (write(fd1, " again", 7) != -1) e(68); /* we can't write */
if (errno != EBADF) e(69); /* a read only fd */
if (read(fd1, buf, 7) != 6) e(70); /* but we can read */
if (close(fd1) != 0) e(71);
/* Let's see if WRONLY files are write only. */
if ((fd1 = open("hi", O_WRONLY)) != 3) e(72);
if (read(fd1, buf, 7) != -1) e(73); /* we can't read */
if (errno != EBADF) e(74); /* a write only fd */
if (write(fd1, "hELLO", 6) != 6) e(75); /* but we can write */
if (close(fd1) != 0) e(76);
/* Let's see if files are closable only once. */
if (close(fd1) != -1) e(77);
if (errno != EBADF) e(78);
/* Let's see how calling close() with bad fds is handled. */
if (close(10) != -1) e(79);
if (errno != EBADF) e(80);
if (close(111) != -1) e(81);
if (errno != EBADF) e(82);
if (close(-432) != -1) e(83);
if (errno != EBADF) e(84);
/* Let's see if RDWR files are read & write able. */
if ((fd1 = open("hi", O_RDWR)) != 3) e(85);
if (read(fd1, buf, 6) != 6) e(86); /* we can read */
if (strncmp(buf, "hELLO", 6) != 0) e(87); /* and we can write */
if (write(fd1, "Hello", 6) != 6) e(88); /* a read write fd */
if (close(fd1) != 0) e(89);
/* Check if APPENDed files are realy appended */
if ((fd1 = open("hi", O_RDWR | O_APPEND)) != 3) e(90); /* open hi */
/* An open should set the file offset to 0. */
if (lseek(fd1, (off_t) 0, SEEK_CUR) != 0) e(91);
/* Writing 0 bytes should not have an effect. */
if (write(fd1, "", 0) != 0) e(92);
if (lseek(fd1, (off_t) 0, SEEK_CUR) != 0) e(93); /* the end? */
/* A seek befor a wirte should not matter with O_APPEND. */
Stat("hi", &st1);
if (lseek(fd1, (off_t) - 3, SEEK_END) != st1.st_size - 3) e(94);
/* By writing 1 byte, we force the offset to the end of the file */
if (write(fd1, "1", 1) != 1) e(95);
Stat("hi", &st1);
if (lseek(fd1, (off_t) 0, SEEK_CUR) != st1.st_size) e(96);
if (write(fd1, "2", 1) != 1) e(97);
Stat("hi", &st1);
if (lseek(fd1, (off_t) 0, SEEK_CUR) != st1.st_size) e(98);
if (write(fd1, "3", 1) != 1) e(99);
Stat("hi", &st1);
if (lseek(fd1, (off_t) 0, SEEK_CUR) != st1.st_size) e(100);
if (lseek(fd1, (off_t) - 2, SEEK_CUR) <= 0) e(101);
if (write(fd1, "4", 1) != 1) e(102);
/* Since the mode was O_APPEND, the offset should be reset to EOF */
Stat("hi", &st1);
if (lseek(fd1, (off_t) 0, SEEK_CUR) != st1.st_size) e(103);
if (lseek(fd1, (off_t) - 4, SEEK_CUR) != st1.st_size - 4) e(104);
if (read(fd1, buf, BUF_SIZE) != 4) e(105);
if (strncmp(buf, "1234", 4) != 0) e(106);
if (close(fd1) != 0) e(107);
/* Check the effect of O_CREAT */
Stat("ho", &st1);
fd1 = open("ho", O_RDWR | O_CREAT, 0000);
if (fd1 != 3) e(108);
Stat("ho", &st2);
if (memcmp(&st1, &st2, sizeof(struct stat)) != 0) e(109);
if (read(fd1, buf, 6) != 6) e(110);
if (strncmp(buf, "Hello\n", 6) != 0) e(111);
if (write(fd1, "@", 1) != 1) e(112);
if (close(fd1) != 0) e(113);
(void) umask(0000);
fd1 = open("ho", O_RDWR | O_CREAT | O_EXCL, 0777);
if (fd1 != -1) e(114); /* ho exists */
System("rm -rf new");
time(&time1);
while (time1 >= time((time_t *)0))
;
fd1 = open("new", O_RDWR | O_CREAT, 0716);
if (fd1 != 3) e(115); /* new file */
Stat("new", &st1);
time(&time2);
while (time2 >= time((time_t *)0))
;
time(&time2);
if (st1.st_uid != geteuid()) e(116); /* try this as superuser. */
if (st1.st_gid != getegid()) e(117);
if ((st1.st_mode & 0777) != 0716) e(118);
if (st1.st_nlink != 1) e(119);
if (st1.st_mtime <= time1) e(120);
if (st1.st_mtime >= time2) e(121);
#ifndef V1_FILESYSTEM
if (st1.st_atime != st1.st_mtime) e(122);
#endif
if (st1.st_ctime != st1.st_mtime) e(123);
if (st1.st_size != 0) e(124);
if (write(fd1, "I'm new in town", 16) != 16) e(125);
if (lseek(fd1, (off_t) - 5, SEEK_CUR) != 11) e(126);
if (read(fd1, buf, 5) != 5) e(127);
if (strncmp(buf, "town", 5) != 0) e(128);
if (close(fd1) != 0) e(129);
/* Let's test the O_TRUNC flag on this new file. */
time(&time1);
while (time1 >= time((time_t *)0));
if ((fd1 = open("new", O_RDWR | O_TRUNC)) != 3) e(130);
Stat("new", &st1);
time(&time2);
while (time2 >= time((time_t *)0));
time(&time2);
if ((st1.st_mode & 0777) != 0716) e(131);
if (st1.st_size != (size_t) 0) e(132); /* TRUNCed ? */
if (st1.st_mtime <= time1) e(133);
if (st1.st_mtime >= time2) e(134);
if (st1.st_ctime != st1.st_mtime) e(135);
if (close(fd1) != 0) e(136);
/* Test if file permission bits and the file ownership are unchanged. */
/* So we will see if `O_CREAT' has no effect if the file exists. */
if (superuser) {
System("echo > bar; chmod 077 bar"); /* Make bar 077 */
System("chown daemon bar");
System("chgrp daemon bar"); /* Daemon's bar */
fd1 = open("bar", O_RDWR | O_CREAT | O_TRUNC, 0777); /* knock knock */
if (fd1 == -1) e(137);
if (write(fd1, "foo", 3) != 3) e(138); /* rewrite bar */
if (close(fd1) != 0) e(139);
Stat("bar", &st1);
if (st1.st_uid != 1) e(140); /* bar is still */
if (st1.st_gid != 1) e(141); /* owned by daemon */
if ((st1.st_mode & 0777) != 077) e(142); /* mode still is 077 */
if (st1.st_size != (size_t) 3) e(143); /* 3 bytes long */
/* We do the whole thing again, but with O_WRONLY */
fd1 = open("bar", O_WRONLY | O_CREAT | O_TRUNC, 0777);
if (fd1 == -1) e(144);
if (write(fd1, "foobar", 6) != 6) e(145); /* rewrite bar */
if (close(fd1) != 0) e(146);
Stat("bar", &st1);
if (st1.st_uid != 1) e(147); /* bar is still */
if (st1.st_gid != 1) e(148); /* owned by daemon */
if ((st1.st_mode & 0777) != 077) e(149); /* mode still is 077 */
if (st1.st_size != (size_t) 6) e(150); /* 6 bytes long */
}
}
void test25c()
{ /* Test normal operation Part two. */
int fd1, fd2;
char buf[BUF_SIZE];
struct stat st;
int stat_loc;
static int iteration=0;
subtest = 3;
iteration++;
System("rm -rf ../DIR_25/*");
/* Fifo file test here. */
if (mkfifo("fifo", 0777) != 0) e(1);
switch (fork()) {
case -1: printf("Can't fork\n"); break;
case 0:
alarm(20); /* Give child 20 seconds to live. */
if ((fd1 = open("fifo", O_RDONLY)) != 3) e(2);
if (read(fd1, buf, BUF_SIZE) != 23) e(3);
if (strncmp(buf, "1 2 3 testing testing\n", 23) != 0) e(4);
if (close(fd1) != 0) e(5);
exit(0);
default:
if ((fd1 = open("fifo", O_WRONLY)) != 3) e(6);
if (write(fd1, "1 2 3 testing testing\n", 23) != 23) e(7);
if (close(fd1) != 0) e(8);
if (wait(&stat_loc) == -1) e(9);
if (stat_loc != 0) e(10); /* The alarm went off? */
}
/* Try opening for writing with O_NONBLOCK. */
fd1 = open("fifo", O_WRONLY | O_NONBLOCK);
if (fd1 != -1) e(11);
if (errno != ENXIO) e(12);
close(fd1);
/* Try opening for writing with O_NONBLOCK and O_CREAT. */
fd1 = open("fifo", O_WRONLY | O_CREAT | O_NONBLOCK, 0777);
if (fd1 != -1) e(13);
if (errno != ENXIO) e(14);
close(fd1);
/* Both the NONBLOCK and the EXCLusive give raise to error. */
fd1 = open("fifo", O_WRONLY | O_CREAT | O_EXCL | O_NONBLOCK, 0777);
if (fd1 != -1) e(15);
if (errno != EEXIST && errno != ENXIO) e(16);
close(fd1); /* Just in case. */
/* Try opening for reading with O_NONBLOCK. */
fd1 = open("fifo", O_RDONLY | O_NONBLOCK);
if (fd1 != 3) e(17);
if (close(fd1) != 0) e(18);
/* Nopt runs out of memory. ;-< We just cut out some valid code */
/* FIFO's should always append. (They have no file position.) */
switch (fork()) {
case -1: printf("Can't fork\n"); break;
case 0:
alarm(20); /* Give child 20 seconds to live. */
if ((fd1 = open("fifo", O_WRONLY)) != 3) e(19);
if ((fd2 = open("fifo", O_WRONLY)) != 4) e(20);
if (write(fd1, "I did see Elvis.\n", 18) != 18) e(21);
if (write(fd2, "I DID.\n", 8) != 8) e(22);
if (close(fd2) != 0) e(23);
if (close(fd1) != 0) e(24);
exit(0);
default:
if ((fd1 = open("fifo", O_RDONLY)) != 3) e(25);
if (read(fd1, buf, 18) != 18) e(26);
if (strncmp(buf, "I did see Elvis.\n", 18) != 0) e(27);
if (read(fd1, buf, BUF_SIZE) != 8) e(28);
if (strncmp(buf, "I DID.\n", 8) != 0) e(29);
if (close(fd1) != 0) e(30);
if (wait(&stat_loc) == -1) e(31);
if (stat_loc != 0) e(32); /* The alarm went off? */
}
/* O_TRUNC should have no effect on FIFO files. */
switch (fork()) {
case -1: printf("Can't fork\n"); break;
case 0:
alarm(20); /* Give child 20 seconds to live. */
if ((fd1 = open("fifo", O_WRONLY)) != 3) e(33);
if (write(fd1, "I did see Elvis.\n", 18) != 18) e(34);
if ((fd2 = open("fifo", O_WRONLY | O_TRUNC)) != 4) e(35);
if (write(fd2, "I DID.\n", 8) != 8) e(36);
if (close(fd2) != 0) e(37);
if (close(fd1) != 0) e(38);
exit(0);
default:
if ((fd1 = open("fifo", O_RDONLY)) != 3) e(39);
if (read(fd1, buf, 18) != 18) e(40);
if (strncmp(buf, "I did see Elvis.\n", 18) != 0) e(41);
if (read(fd1, buf, BUF_SIZE) != 8) e(42);
if (strncmp(buf, "I DID.\n", 8) != 0) e(43);
if (close(fd1) != 0) e(44);
if (wait(&stat_loc) == -1) e(45);
if (stat_loc != 0) e(46); /* The alarm went off? */
}
/* Closing the last fd should flush all data to the bitbucket. */
System("rm -rf /tmp/sema.25");
switch (fork()) {
case -1: printf("Can't fork\n"); break;
case 0:
alarm(20); /* Give child 20 seconds to live. */
if ((fd1 = open("fifo", O_WRONLY)) != 3) e(47);
if (write(fd1, "I did see Elvis.\n", 18) != 18) e(48);
Creat("/tmp/sema.25");
sleep(2); /* give parent a chance to open */
/* this was sleep(1), but that's too short: child also sleeps(1) */
if (close(fd1) != 0) e(49);
exit(0);
default:
if ((fd1 = open("fifo", O_RDONLY)) != 3) e(50);
/* Make `sure' write has closed. */
while (stat("/tmp/sema.25", &st) != 0) sleep(1);
if (close(fd1) != 0) e(51);
if ((fd1 = open("fifo", O_RDONLY | O_NONBLOCK)) != 3) e(52);
if (read(fd1, buf, BUF_SIZE) != 18) e(53);
if (close(fd1) != 0) e(54);
if (wait(&stat_loc) == -1) e(55);
if (stat_loc != 0) e(56); /* The alarm went off? */
}
/* Let's try one too many. */
System("rm -rf /tmp/sema.25");
switch (fork()) {
case -1: printf("Can't fork\n"); break;
case 0:
alarm(20); /* Give child 20 seconds to live. */
if ((fd1 = open("fifo", O_WRONLY)) != 3) e(57);
if (write(fd1, "I did see Elvis.\n", 18) != 18) e(58);
/* Keep open till third reader is opened. */
while (stat("/tmp/sema.25", &st) != 0) sleep(1);
if (close(fd1) != 0) e(59);
exit(0);
default:
if ((fd1 = open("fifo", O_RDONLY)) != 3) e(60);
if (read(fd1, buf, 2) != 2) e(61);
if (strncmp(buf, "I ", 2) != 0) e(62);
if (close(fd1) != 0) e(63);
if ((fd1 = open("fifo", O_RDONLY)) != 3) e(64);
if (read(fd1, buf, 4) != 4) e(65);
if (strncmp(buf, "did ", 4) != 0) e(66);
if ((fd2 = open("fifo", O_RDONLY)) != 4) e(67);
/* Signal third reader is open. */
Creat("/tmp/sema.25");
if (read(fd2, buf, BUF_SIZE) != 12) e(68);
if (strncmp(buf, "see Elvis.\n", 12) != 0) e(69);
if (close(fd2) != 0) e(70);
if (close(fd1) != 0) e(71);
if (wait(&stat_loc) == -1) e(72);
if (stat_loc != 0) e(73); /* The alarm went off? */
}
System("rm -rf fifo /tmp/sema.25");
/* O_TRUNC should have no effect on directroys. */
System("mkdir dir; touch dir/f1 dir/f2 dir/f3");
if ((fd1 = open("dir", O_WRONLY | O_TRUNC)) != -1) e(74);
if (errno != EISDIR) e(75);
close(fd1);
/* Opening a directory for reading should be possible. */
if ((fd1 = open("dir", O_RDONLY)) != 3) e(76);
if (close(fd1) != 0) e(77);
if (unlink("dir/f1") != 0) e(78); /* Should still be there. */
if (unlink("dir/f2") != 0) e(79);
if (unlink("dir/f3") != 0) e(80);
if (rmdir("dir") != 0) e(81);
if (!superuser) {
/* Test if O_CREAT is not usable to open files with the wrong mode */
(void) umask(0200); /* nono has no */
System("touch nono"); /* write bit */
(void) umask(0000);
fd1 = open("nono", O_RDWR | O_CREAT, 0777); /* try to open */
if (fd1 != -1) e(82);
if (errno != EACCES) e(83); /* but no access */
}
}
void test25d()
{
int fd;
subtest = 4;
System("rm -rf ../DIR_25/*");
/* Test maximal file name length. */
if ((fd = open(MaxName, O_RDWR | O_CREAT, 0777)) != 3) e(1);
if (close(fd) != 0) e(2);
MaxPath[strlen(MaxPath) - 2] = '/';
MaxPath[strlen(MaxPath) - 1] = 'a'; /* make ././.../a */
if ((fd = open(MaxPath, O_RDWR | O_CREAT, 0777)) != 3) e(3);
if (close(fd) != 0) e(4);
MaxPath[strlen(MaxPath) - 1] = '/'; /* make ././.../a */
}
void test25e()
{
int fd, does_truncate;
char *noread = "noread"; /* Name for unreadable file. */
char *nowrite = "nowrite"; /* Same for unwritable. */
int stat_loc;
subtest = 5;
System("rm -rf ../DIR_25/*");
mkdir("bar", 0777); /* make bar */
/* Check if no access on part of path generates the correct error. */
System("chmod 677 bar"); /* rw-rwxrwx */
if (open("bar/nono", O_RDWR | O_CREAT, 0666) != -1) e(1);
if (errno != EACCES) e(2);
/* Ditto for no write permission. */
System("chmod 577 bar"); /* r-xrwxrwx */
if (open("bar/nono", O_RDWR | O_CREAT, 0666) != -1) e(3);
if (errno != EACCES) e(4);
/* Clean up bar. */
System("rm -rf bar");
/* Improper flags set on existing file. */
System("touch noread; chmod 377 noread"); /* noread */
if (open(noread, O_RDONLY) != -1) e(5);
if (open(noread, O_RDWR) != -1) e(6);
if (open(noread, O_RDWR | O_CREAT, 0777) != -1) e(7);
if (open(noread, O_RDWR | O_CREAT | O_TRUNC, 0777) != -1) e(8);
if ((fd = open(noread, O_WRONLY)) != 3) e(9);
if (close(fd) != 0) e(10);
System("touch nowrite; chmod 577 nowrite"); /* nowrite */
if (open(nowrite, O_WRONLY) != -1) e(11);
if (open(nowrite, O_RDWR) != -1) e(12);
if (open(nowrite, O_RDWR | O_CREAT, 0777) != -1) e(13);
if (open(nowrite, O_RDWR | O_CREAT | O_TRUNC, 0777) != -1) e(14);
if ((fd = open(nowrite, O_RDONLY)) != 3) e(15);
if (close(fd) != 0) e(16);
if (superuser) {
/* If we can make a file ownd by some one else, test access again. */
System("chmod 733 noread");
System("chown bin noread");
System("chgrp system noread");
System("chmod 755 nowrite");
System("chown bin nowrite");
System("chgrp system nowrite");
switch (fork()) {
case -1: printf("Can't fork\n"); break;
case 0:
setuid(1);
setgid(1); /* become daemon */
if (open(noread, O_RDONLY) != -1) e(17);
if (open(noread, O_RDWR) != -1) e(18);
if (open(noread, O_RDWR | O_CREAT, 0777) != -1) e(19);
fd = open(noread, O_RDWR | O_CREAT | O_TRUNC, 0777);
if (fd != -1) e(20);
if ((fd = open(noread, O_WRONLY)) != 3) e(21);
if (close(fd) != 0) e(22);
if (open(nowrite, O_WRONLY) != -1) e(23);
if (open(nowrite, O_RDWR) != -1) e(24);
if (open(nowrite, O_RDWR | O_CREAT, 0777) != -1) e(25);
fd = open(nowrite, O_RDWR | O_CREAT | O_TRUNC, 0777);
if (fd != -1) e(26);
if ((fd = open(nowrite, O_RDONLY)) != 3) e(27);
if (close(fd) != 0) e(28);
exit(0);
default:
if (wait(&stat_loc) == -1) e(29);
}
}
/* Clean up the noread and nowrite files. */
System("rm -rf noread nowrite");
/* Test the O_EXCL flag. */
System("echo > exists");
if (open("exists", O_RDWR | O_CREAT | O_EXCL, 0777) != -1) e(30);
if (errno != EEXIST) e(31);
if (open("exists", O_RDONLY | O_CREAT | O_EXCL, 0777) != -1) e(32);
if (errno != EEXIST) e(33);
if (open("exists", O_WRONLY | O_CREAT | O_EXCL, 0777) != -1) e(34);
if (errno != EEXIST) e(35);
fd = open("exists", O_RDWR | O_CREAT | O_EXCL | O_TRUNC, 0777);
if (fd != -1) e(36);
if (errno != EEXIST) e(37);
fd = open("exists", O_RDONLY | O_CREAT | O_EXCL | O_TRUNC, 0777);
if (fd != -1) e(38);
if (errno != EEXIST) e(39);
fd = open("exists", O_WRONLY | O_CREAT | O_EXCL | O_TRUNC, 0777);
if (fd != -1) e(40);
if (errno != EEXIST) e(41);
/* open should fail when O_CREAT|O_EXCL are set and a symbolic link names
a file with EEXIST (regardless of link actually works or not) */
if (symlink("exists", "slinktoexists") == -1) e(42);
if (open("slinktoexists", O_RDWR | O_CREAT | O_EXCL, 0777) != -1) e(43);
if (unlink("exists") == -1) e(44);
/* "slinktoexists has become a dangling symlink. open(2) should still fail
with EEXIST */
if (open("slinktoexists", O_RDWR | O_CREAT | O_EXCL, 0777) != -1) e(45);
if (errno != EEXIST) e(46);
/* Test ToLongName and ToLongPath */
does_truncate = does_fs_truncate();
fd = open(ToLongName, O_RDWR | O_CREAT, 0777);
if (does_truncate) {
if (fd == -1) e(47);
if (close(fd) != 0) e(48);
} else {
if (fd != -1) e(49);
(void) close(fd); /* Just in case */
}
ToLongPath[PATH_MAX - 2] = '/';
ToLongPath[PATH_MAX - 1] = 'a';
if ((fd = open(ToLongPath, O_RDWR | O_CREAT, 0777)) != -1) e(50);
if (errno != ENAMETOOLONG) e(51);
if (close(fd) != -1) e(52);
ToLongPath[PATH_MAX - 1] = '/';
}
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 */
}
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