void test30c()
{
int fd, does_truncate;
subtest = 3;
System("rm -rf ../DIR_30/*");
if (!superuser) {
/* Test if creat is not usable to open files with the wrong mode */
System("> nono; chmod 177 nono");
fd = creat("nono", 0777);
if (fd != -1) e(1);
if (errno != EACCES) e(2);
}
if (mkdir("bar", 0777) != 0) e(3); /* make bar */
/* Check if no access on part of path generates the correct error. */
System("chmod 577 bar"); /* r-xrwxrwx */
if (!superuser) {
/* Normal users can't creat without write permision. */
if (creat("bar/nono", 0666) != -1) e(4);
if (errno != EACCES) e(5);
if (creat("bar/../nono", 0666) != -1) e(6);
if (errno != EACCES) e(7);
}
if (superuser) {
/* Super user can still creat stuff. */
if ((fd = creat("bar/nono", 0666)) != 3) e(8);
if (close(fd) != 0) e(9);
if (unlink("bar/nono") != 0) e(10);
}
/* Clean up bar. */
System("rm -rf bar");
/* Test ToLongName and ToLongPath */
does_truncate = does_fs_truncate();
fd = creat(ToLongName, 0777);
if (does_truncate) {
if (fd == -1) e(11);
if (close(fd) != 0) e(12);
} else {
if (fd != -1) e(13);
if (errno != ENAMETOOLONG) e(14);
(void) close(fd); /* Just in case. */
}
ToLongPath[PATH_MAX - 2] = '/';
ToLongPath[PATH_MAX - 1] = 'a';
if ((fd = creat(ToLongPath, 0777)) != -1) e(15);
if (errno != ENAMETOOLONG) e(16);
if (close(fd) != -1) e(17);
ToLongPath[PATH_MAX - 1] = '/';
}
void test24c()
{
/* Test whether wrong things go wrong right. */
DIR *dirp;
int does_truncate;
subtest = 3;
System("rm -rf ../DIR_24/*");
if (opendir("foo/bar/nono") != ((DIR *) NULL)) e(1); /* nonexistent */
if (errno != ENOENT) e(2);
System("mkdir foo; chmod 677 foo"); /* foo inaccesable */
if (opendir("foo/bar/nono") != ((DIR *) NULL)) e(3);
if (superuser) {
if (errno != ENOENT) e(4); /* su has access */
System("chmod 377 foo");
if ((dirp = opendir("foo")) == ((DIR *) NULL)) e(5);
if (closedir(dirp) != 0) e(6);
}
if (!superuser) {
if (errno != EACCES) e(7); /* we don't ;-) */
System("chmod 377 foo");
if (opendir("foo") != ((DIR *) NULL)) e(8);
}
System("chmod 777 foo");
if (mkdir(MaxName, 0777) != 0) e(9); /* make longdir */
if ((dirp = opendir(MaxName)) == ((DIR *) NULL)) e(10); /* open it */
if (closedir(dirp) != 0) e(11); /* close it */
if (rmdir(MaxName) != 0) e(12); /* then remove it */
if ((dirp = opendir(MaxPath)) == ((DIR *) NULL)) e(13); /* open '.' */
if (closedir(dirp) != 0) e(14); /* close it */
does_truncate = does_fs_truncate();
if (opendir(ToLongName) != ((DIR *) NULL)) e(17); /* is too long */
if (does_truncate) {
if (errno != ENOENT) e(18);
} else {
if (errno != ENAMETOOLONG) e(19);
}
if (opendir(ToLongPath) != ((DIR *) NULL)) e(20); /* path is too long */
if (errno != ENAMETOOLONG) e(21);
System("touch foo/abc"); /* make a file */
if (opendir("foo/abc") != ((DIR *) NULL)) e(22); /* not a dir */
if (errno != ENOTDIR) e(23);
}
void test23b()
{ /* Test critical values. */
int does_truncate;
subtest = 2;
System("rm -rf ../DIR_23/*");
/* Fiddle with the size (2nd) parameter of `getcwd ()'. */
if (getcwd(cwd, PATH_MAX) != cwd) e(1); /* get cwd */
if (getcwd(buf, strlen(cwd)) != (char *) 0) e(2); /* size 1 to small */
if (errno != ERANGE) e(3);
if (getcwd(buf, PATH_MAX) != buf) e(4);
if (strcmp(buf, cwd) != 0) e(5);
Chdir(cwd); /* getcwd might cd / */
if (getcwd(buf, strlen(cwd) + 1) != buf) e(6); /* size just ok */
if (getcwd(buf, PATH_MAX) != buf) e(7);
if (strcmp(buf, cwd) != 0) e(8);
/* Let's see how "MaxName" and "ToLongName" are handled. */
if (mkdir(MaxName, 0777) != 0) e(9);
if (chdir(MaxName) != 0) e(10);
if (chdir("..") != 0) e(11);
if (rmdir(MaxName) != 0) e(12);
if (getcwd(buf, PATH_MAX) != buf) e(13);
if (strcmp(buf, cwd) != 0) e(14);
if (chdir(MaxPath) != 0) e(15);
if (getcwd(buf, PATH_MAX) != buf) e(16);
if (strcmp(buf, cwd) != 0) e(17);
does_truncate = does_fs_truncate();
if (chdir(ToLongName) != -1) e(18);
if (does_truncate) {
if (errno != ENOENT) e(19);
} else {
if (errno != ENAMETOOLONG) e(20);
}
if (getcwd(buf, PATH_MAX) != buf) e(21);
if (strcmp(buf, cwd) != 0) e(22);
if (chdir(ToLongPath) != -1) e(23);
if (errno != ENAMETOOLONG) e(24);
if (getcwd(buf, PATH_MAX) != buf) e(25);
if (strcmp(buf, cwd) != 0) e(26);
}
void test35c()
{
gid_t gid, gid2;
uid_t uid, uid2;
struct utimbuf ub;
int fd, does_truncate, stat_loc;
subtest = 3;
/* Access problems. */
Mkdir("bar");
Creat("bar/tryme");
if (superuser) {
Chmod("bar", 0000); /* No search permisson at all. */
if (utime("bar/tryme", NULL) != 0) e(1);
}
if (!superuser) {
Chmod("bar", 0677); /* No search permisson. */
if (utime("bar/tryme", NULL) != -1) e(2);
if (errno != EACCES) e(3);
}
Chmod("bar", 0777);
if (I_can_chown) {
switch (fork()) {
case -1: printf("Can't fork\n"); break;
case 0:
alarm(20);
/* Get two differend non root uids. */
if (superuser) {
getids(&uid, &gid);
if (uid == 0) getids(&uid, &gid);
if (uid == 0) e(4);
}
if (!superuser) {
uid = geteuid();
gid = getegid();
}
getids(&uid2, &gid);
if (uid == uid2) getids(&uid2, &gid2);
if (uid == uid2) e(5);
/* Creat a number of files for root, user and user2. */
Creat("rootfile"); /* Owned by root. */
Chmod("rootfile", 0600);
Chown("rootfile", 0, 0);
Creat("user2file"); /* Owned by user 2, writeable. */
Chmod("user2file", 0020);
Chown("user2file", uid2, gid);
Creat("user2private"); /* Owned by user 2, privately. */
Chmod("user2private", 0600);
Chown("user2private", uid2, gid);
if (superuser) {
setgid(gid);
setuid(uid);
}
/* We now are user ``uid'' from group ``gid''. */
ub.actime = (time_t) 12345L;
ub.modtime = (time_t) 12345L;
if (utime("rootfile", NULL) != -1) e(6);
if (errno != EACCES) e(7);
if (utime("rootfile", &ub) != -1) e(8);
if (errno != EPERM) e(9);
if (utime("user2file", NULL) != 0) e(10);
if (utime("user2file", &ub) != -1) e(11);
if (errno != EPERM) e(12);
if (utime("user2private", NULL) != -1) e(13);
if (errno != EACCES) e(14);
if (utime("user2private", &ub) != -1) e(15);
if (errno != EPERM) e(16);
exit(errct ? 1 : 0);
default:
wait(&stat_loc);
if (stat_loc != 0) e(17); /* Alarm? */
}
}
/* Test names that are too long. */
does_truncate = does_fs_truncate();
fd = creat(NameTooLong, 0777);
if (does_truncate) {
if (utime(NameTooLong, NULL) != 0) e(18);
} else {
if (utime(NameTooLong, NULL) != -1) e(19);
if (errno != ENAMETOOLONG) e(20);
}
(void) close(fd);
/* Make PathTooLong contain ././.../a */
PathTooLong[strlen(PathTooLong) - 2] = '/';
PathTooLong[strlen(PathTooLong) - 1] = 'a';
Creat("a");
if (utime(PathTooLong, NULL) != -1) e(21);
if (errno != ENAMETOOLONG) e(22);
/* Non existing file name. */
if (utime("nonexist", NULL) != -1) e(23);
if (errno != ENOENT) e(24);
/* Empty file name. */
if (utime("", NULL) != -1) e(25);
if (errno != ENOENT) e(26);
System("rm -rf ../DIR_35/*");
}
void test33c()
{ /* Test errors returned. */
int i, fd, does_truncate;
subtest = 3;
System("rm -rf ../DIR_33/*");
/* Test what access() does with non existing files. */
System("rm -rf nonexist");
if (access("noexist", F_OK) != -1) e(1);
if (errno != ENOENT) e(2);
if (access("noexist", R_OK) != -1) e(3);
if (errno != ENOENT) e(4);
if (access("noexist", W_OK) != -1) e(5);
if (errno != ENOENT) e(6);
if (access("noexist", X_OK) != -1) e(7);
if (errno != ENOENT) e(8);
if (access("noexist", R_OK | W_OK) != -1) e(9);
if (errno != ENOENT) e(10);
if (access("noexist", R_OK | X_OK) != -1) e(11);
if (errno != ENOENT) e(12);
if (access("noexist", W_OK | X_OK) != -1) e(13);
if (errno != ENOENT) e(14);
if (access("noexist", R_OK | W_OK | X_OK) != -1) e(15);
if (errno != ENOENT) e(16);
/* Test access on a nonsearchable path. */
if (mkdir("nosearch", 0777) != 0) e(1000);
if ( (i = creat("nosearch/file", 0666)) < 0) e(1001);
if (close(i) < 0) e(1002);
if ( (i = creat("file", 0666) < 0)) e(1003);
if (close(i) < 0) e(1004);
if (chmod("nosearch/file", 05777) < 0) e(1005);
if (chmod("file", 05777) < 0) e(1006);
if (chmod("nosearch", 0677) != 0) e(1007);
if (access("nosearch/file", F_OK) != 0) e(17);
/* Test ToLongName and ToLongPath */
does_truncate = does_fs_truncate();
if (does_truncate) {
if ((fd = creat(ToLongName, 0777)) != 0) e(18);
if (close(fd) != 0) e(19);
if (access(ToLongName, F_OK) != 0) e(20);
} else {
if ((fd = creat(ToLongName, 0777)) != -1) e(21);
if (errno != ENAMETOOLONG) e(22);
(void) close(fd); /* Just in case */
if (access(ToLongName, F_OK) != -1) e(23);
if (errno != ENAMETOOLONG) e(24);
}
ToLongPath[PATH_MAX - 2] = '/';
ToLongPath[PATH_MAX - 1] = 'a';
if (access(ToLongPath, F_OK) != -1) e(27);
if (errno != ENAMETOOLONG) e(28);
ToLongPath[PATH_MAX - 1] = '/';
/* Test empty strings. */
if (access("", F_OK) != -1) e(29);
if (errno != ENOENT) e(30);
System("rm -rf idonotexist");
if (access("idonotexist", F_OK) != -1) e(31);
if (errno != ENOENT) e(32);
/* Test non directorys in prefix of path. */
if (access("/etc/passwd/dir/foo", F_OK) != -1) e(33);
if (errno != ENOTDIR) e(34);
System("rm -rf nodir; > nodir");
if (access("nodir/foo", F_OK) != -1) e(35);
if (errno != ENOTDIR) e(36);
/* Test if invalid amode arguments are signaled. */
System("> allmod");
Chmod("allmod", 05777);
for (i = -1025; i < 1025; i++) {
if ((mode_t) i != F_OK && ((mode_t) i & ~(R_OK | W_OK | X_OK)) != 0) {
if (access("allmod", (mode_t) i) != -1) e(37);
if (errno != EINVAL) e(38);
} else
if (access("allmod", (mode_t) i) != 0) e(39);
}
}
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 test28b()
{ /* Test critical values. */
struct stat st;
DIR *dirp;
struct dirent *dep;
int fd; /* file descriptor */
int other = 0, dot = 0, dotdot = 0; /* dirent counters */
int r; /* Intermediate result */
int rmdir_result; /* tmp var */
nlink_t nlink;
static char bar[20];
int stat_loc, does_truncate;
subtest = 2;
System("rm -rf ../DIR_28/*");
/* Check funny but valid path names */
if (mkdir("/../../..////.//../tmp/foo/", 0777) != 0) e(1);
if (mkdir("/tmp/foo//////..//foo//../foo/bar/", 0777) != 0) e(2);
if (rmdir("///tmp/..//tmp/foo/bar//../..//foo/bar") != 0) e(3);
if (mkdir("///tmp/foo/foobar//", 0777) != 0) e(4);
if (rmdir("/tmp/foo/foobar//") != 0) e(5);
if (rmdir("/.././/././/tmp/foo///////////////") != 0) e(6);
if (rmdir("/tmp/foo") != -1) e(7); /* try again */
/* Test max path ed. */
if (mkdir(MaxName, 0777) != 0) e(9); /* make dir MaxName */
if (rmdir(MaxName) != 0) e(10); /* and remove it */
MaxPath[strlen(MaxPath) - 2] = '/'; /* convert MaxPath */
MaxPath[strlen(MaxPath) - 1] = 'a'; /* to ././.../a */
if (mkdir(MaxPath, 0777) != 0) e(11); /* it should be */
if (rmdir(MaxPath) != 0) e(12); /* ok */
/* Test too long path ed. */
does_truncate = does_fs_truncate();
r = mkdir(ToLongName, 0777);
if (does_truncate ) {
/* FS truncates names, mkdir should've worked */
if (r != 0) e(13); /* Try ToLongName */
if (rmdir(ToLongName) != 0) e(14); /* and remove it */
} else {
/* Too long, should've failed with ENAMETOOLONG */
if (r == 0) e(15);
if (errno != ENAMETOOLONG) e(16);
}
ToLongPath[strlen(ToLongPath) - 2] = '/'; /* make ToLongPath */
ToLongPath[strlen(ToLongPath) - 1] = 'a'; /* contain ././.../a */
if (mkdir(ToLongPath, 0777) != -1) e(17); /* it should */
if (errno != ENAMETOOLONG) e(18); /* not be ok */
if (rmdir(ToLongPath) != -1) e(19);
if (errno != ENAMETOOLONG) e(20);
if (mkdir("foo", 0777) != 0) e(21);
System("touch foo/xyzzy");
#if 0
/* Test what happens if the parent link count > LINK_MAX. */
/* This takes too long. */
for (nlink = 1; nlink < LINK_MAX; nlink++) { /* make all */
sprintf(bar, "foo/bar.%d", nlink);
if (link("foo/xyzzy", bar) != 0) e(24);
}
if (stat("foo/xyzzy", &st) != 0) e(25); /* foo now */
if (st.st_nlink != LINK_MAX) e(26); /* is full */
if (link("foo/xyzzy", "nono") != -1) e(27); /* no more */
if (errno != EMLINK) e(28); /* entrys. */
System("rm -rf foo/nono"); /* Just in case. */
#endif
/* Test if rmdir removes only empty dirs */
if (rmdir("foo") != -1) e(29);/* not empty */
if (errno != EEXIST && errno != ENOTEMPTY) e(30);
/* Test if rmdir removes a dir with an empty file (it shouldn't.) */
System("rm -rf foo"); /* cleanup */
if (mkdir("foo", 0777) != 0) e(31);
System("> foo/empty"); /* > empty */
if (rmdir("foo") != -1) e(32);/* not empty */
if (errno != EEXIST && errno != ENOTEMPTY) e(33);
if (unlink("foo/empty") != 0) e(34); /* rm empty */
/* See what happens if foo is linked. */
#if 0
if (superuser) {
if (link("foo", "footoo") != 0) e(35); /* foo still */
if (rmdir("footoo") != 0) e(36); /* exist */
if (chdir("footoo") != -1) e(37); /* footoo */
if (errno != ENOENT) e(38); /* is gone */
}
#endif
#ifdef _MINIX
/* Some implementations might allow users to link directories. */
if (!superuser) {
if (link("foo", "footoo") != -1) e(39);
if (errno != EPERM) e(40);
if (unlink("foo") != -1) e(41);
if (errno != EPERM) e(42);
}
#endif
/* See if ".." and "." are removed from the dir, and if it is
* unwriteable
* Note, we can not remove any files in the PARENT
* process, because this
* will make readdir unpredicatble. (see
* 1003.1 page 84 line 30.) However
* removal of the directory is
* not specified in the standard.
*/
System("rm -rf /tmp/sema[12].07");
switch (fork()) {
case -1: printf("Can't fork\n"); break;
case 0:
alarm(20);
if ((fd = open("foo", O_RDONLY)) <= 2) e(43); /* open */
if ((dirp = opendir("foo")) == (DIR *) NULL) e(44); /* opendir */
/* UpA downB */
system(">/tmp/sema1.07; while test -f /tmp/sema1.07; do sleep 1;done");
while ((dep = readdir(dirp)) != DIRENT0) {
if (strcmp(dep->d_name, "..") == 0)
dotdot += 1;
else if (strcmp(dep->d_name, ".") == 0)
dot += 1;
else
other += 1;
}
if (dotdot != 0) e(45); /* no entrys */
if (dot != 0) e(46); /* shoul be */
if (other != 0) e(47); /* left or */
/* No new files (entrys) are allowed on foo */
if (creat("foo/nono", 0777) != -1) e(48); /* makeable */
if (closedir(dirp) != 0) e(49); /* close foo */
system("while test ! -f /tmp/sema2.07; do sleep 1; done"); /* downA */
System("rm -f /tmp/sema2.07"); /* clean up */
/* Foo still exist, so we should be able to get a fstat */
if (fstat(fd, &st) != 0) e(50);
if (st.st_nlink != (nlink_t) 0) e(51); /* 0 left */
if (close(fd) != 0) e(52); /* last one */
exit(0);
default:
system("while test ! -f /tmp/sema1.07; do sleep 1; done"); /* downA */
if (rmdir("foo") != 0) e(53); /* cleanerup */
System("rm -f /tmp/sema1.07"); /* upB */
if (chdir("foo") != -1) e(54); /* it should */
if (errno != ENOENT) e(55); /* be gone */
System("> /tmp/sema2.07"); /* upA */
if (wait(&stat_loc) == -1) e(56);
if (stat_loc != 0) e(57);
}
/* See if foo isn't accessible any more */
if (chdir("foo") != -1) e(58);
if (errno != ENOENT) e(59);
/* Let's see if we can get a EBUSSY..... */
if (mkdir("foo", 0777) != 0) e(60); /* mkdir foo */
System("rm -f /tmp/sema.07"); /* unness */
switch (fork()) {
case -1: printf("Can't fork\n"); break;
case 0:
alarm(20);
if (chdir("foo") != 0) e(61); /* child goes */
System("> /tmp/sema.07"); /* upA */
system("while test -f /tmp/sema.07; do sleep 1; done"); /* downB */
sleep(1);
exit(0);
default:
system("while test ! -f /tmp/sema.07; do sleep 1; done"); /* downA */
rmdir_result = rmdir("foo"); /* try remove */
if (rmdir_result == -1) { /* if it failed */
if (errno != EBUSY) e(62); /* foo is busy */
} else {
if (rmdir_result != 0) e(63);
if (rmdir("foo") != -1) e(64); /* not removable */
if (errno != ENOENT) e(65); /* again. */
if (chdir("foo") != -1) e(66); /* we can't go */
if (errno != ENOENT) e(67); /* there any more */
if (mkdir("foo", 0777) != 0) e(68); /* we can remake foo */
}
System("rm -f /tmp/sema.07"); /* upB */
if (wait(&stat_loc) == -1) e(69);
if (stat_loc != 0) e(70);
}
if (rmdir("foo") != 0) e(71); /* clean up */
}
