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minix/test/test20.c
Ben Gras 9865aeaa79 Initial revision
2005-04-21 14:53:53 +00:00

736 lines
19 KiB
C
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/* POSIX test program (20). Author: Andy Tanenbaum */
/* The following POSIX calls are tested:
*
* opendir()
* readdir()
* rewinddir()
* closedir()
* chdir()
* getcwd()
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <fcntl.h>
#include <errno.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <utime.h>
#include <stdio.h>
#define DIR_NULL (DIR*) NULL
#define ITERATIONS 5
#define MAX_FD 100 /* must be large enough to cause error */
#define BUF_SIZE PATH_MAX+20
#define ERR_CODE -1 /* error return */
#define RD_BUF 200
#define MAX_ERROR 4
char str[] = {"The time has come the walrus said to talk of many things.\n"};
char str2[] = {"Of ships and shoes and sealing wax, of cabbages and kings.\n"};
char str3[] = {"Of why the sea is boiling hot and whether pigs have wings\n"};
int subtest, errct;
_PROTOTYPE(int main, (int argc, char *argv []));
_PROTOTYPE(void test20a, (void));
_PROTOTYPE(void checkdir, (DIR *dirp, int t));
_PROTOTYPE(void test20b, (void));
_PROTOTYPE(void test20c, (void));
_PROTOTYPE(void test20d, (void));
_PROTOTYPE(void test20e, (void));
_PROTOTYPE(void test20f, (void));
_PROTOTYPE(void test20g, (void));
_PROTOTYPE(void test20h, (void));
_PROTOTYPE(void test20i, (void));
_PROTOTYPE(void test20j, (void));
_PROTOTYPE(void e, (int n));
_PROTOTYPE(void quit, (void));
int main(argc, argv)
int argc;
char *argv[];
{
int i, m = 0xFFFF;
sync();
if (geteuid() == 0 || getuid() == 0) {
printf("Test 20 cannot run as root; test aborted\n");
exit(1);
}
if (argc == 2) m = atoi(argv[1]);
printf("Test 20 ");
fflush(stdout);
system("rm -rf DIR_20; mkdir DIR_20");
chdir("DIR_20");
for (i = 0; i < ITERATIONS; i++) {
if (m & 00001) test20a(); /* test for correct operation */
if (m & 00002) test20b(); /* test general error handling */
if (m & 00004) test20c(); /* test for EMFILE error */
if (m & 00010) test20d(); /* test chdir() and getcwd() */
if (m & 00020) test20e(); /* test open() */
if (m & 00040) test20f(); /* test umask(), stat(), fstat() */
if (m & 00100) test20g(); /* test link() and unlink() */
if (m & 00200) test20h(); /* test access() */
if (m & 00400) test20i(); /* test chmod() and chown() */
if (m & 01000) test20j(); /* test utime() */
}
quit();
return(-1); /* impossible */
}
void test20a()
{
/* Subtest 1. Correct operation */
int f1, f2, f3, f4, f5;
DIR *dirp;
/* Remove any residue of previous tests. */
subtest = 1;
system("rm -rf foo");
/* Create a directory foo with 5 files in it. */
mkdir("foo", 0777);
if ((f1 = creat("foo/f1", 0666)) < 0) e(1);
if ((f2 = creat("foo/f2", 0666)) < 0) e(2);
if ((f3 = creat("foo/f3", 0666)) < 0) e(3);
if ((f4 = creat("foo/f4", 0666)) < 0) e(4);
if ((f5 = creat("foo/f5", 0666)) < 0) e(5);
/* Now remove 2 files to create holes in the directory. */
if (unlink("foo/f2") < 0) e(6);
if (unlink("foo/f4") < 0) e(7);
/* Close the files. */
close(f1);
close(f2);
close(f3);
close(f4);
close(f5);
/* Open the directory. */
dirp = opendir("./foo");
if (dirp == DIR_NULL) e(6);
/* Read the 5 files from it. */
checkdir(dirp, 2);
/* Rewind dir and test again. */
rewinddir(dirp);
checkdir(dirp, 3);
/* We're done. Close the directory stream. */
if (closedir(dirp) < 0) e(7);
/* Remove dir for next time. */
system("rm -rf foo");
}
void checkdir(dirp, t)
DIR *dirp; /* poinrter to directory stream */
int t; /* subtest number to use */
{
int i, f1, f2, f3, f4, f5, dot, dotdot, subt;
struct dirent *d;
char *s;
/* Save subtest number */
subt = subtest;
subtest = t;
/* Clear the counters. */
f1 = 0;
f2 = 0;
f3 = 0;
f4 = 0;
f5 = 0;
dot = 0;
dotdot = 0;
/* Read the directory. It should contain 5 entries, ".", ".." and 3
* files. */
for (i = 0; i < 5; i++) {
d = readdir(dirp);
if (d == (struct dirent *) NULL) {
e(1);
subtest = subt; /* restore subtest number */
return;
}
s = d->d_name;
if (strcmp(s, ".") == 0) dot++;
if (strcmp(s, "..") == 0) dotdot++;
if (strcmp(s, "f1") == 0) f1++;
if (strcmp(s, "f2") == 0) f2++;
if (strcmp(s, "f3") == 0) f3++;
if (strcmp(s, "f4") == 0) f4++;
if (strcmp(s, "f5") == 0) f5++;
}
/* Check results. */
d = readdir(dirp);
if (d != (struct dirent *) NULL) e(2);
if (f1 != 1 || f3 != 1 || f5 != 1) e(3);
if (f2 != 0 || f4 != 0) e(4);
if (dot != 1 || dotdot != 1) e(5);
subtest = subt;
return;
}
void test20b()
{
/* Subtest 4. Test error handling. */
int fd;
DIR *dirp;
subtest = 4;
if (opendir("foo/xyz/---") != DIR_NULL) e(1);
if (errno != ENOENT) e(2);
if (mkdir("foo", 0777) < 0) e(3);
if (chmod("foo", 0) < 0) e(4);
if (opendir("foo/xyz/--") != DIR_NULL) e(5);
if (errno != EACCES) e(6);
if (chmod("foo", 0777) != 0) e(7);
if (rmdir("foo") != 0) e(8);
if ((fd = creat("abc", 0666)) < 0) e(9);
if (close(fd) < 0) e(10);
if (opendir("abc/xyz") != DIR_NULL) e(11);
if (errno != ENOTDIR) e(12);
if ((dirp = opendir(".")) == DIR_NULL) e(13);
if (closedir(dirp) != 0) e(14);
if (unlink("abc") != 0) e(15);
}
void test20c()
{
/* Subtest 5. See what happens if we open too many directory streams. */
int i, j;
DIR *dirp[MAX_FD];
subtest = 5;
for (i = 0; i < MAX_FD; i++) {
dirp[i] = opendir(".");
if (dirp[i] == (DIR *) NULL) {
/* We have hit the limit. */
if (errno != EMFILE && errno != ENOMEM) e(1);
for (j = 0; j < i; j++) {
if (closedir(dirp[j]) != 0) e(2); /* close */
}
return;
}
}
/* Control should never come here. This is an error. */
e(3);
for (i = 0; i < MAX_FD; i++) closedir(dirp[i]); /* don't check */
}
void test20d()
{
/* Test chdir and getcwd(). */
int fd;
char *s;
char base[BUF_SIZE], buf2[BUF_SIZE], tmp[BUF_SIZE];
subtest = 6;
if (getcwd(base, BUF_SIZE) == (char *) NULL) e(1); /* get test dir's path */
if (system("rm -rf Dir") != 0) e(2); /* remove residue of previous test */
if (mkdir("Dir", 0777) < 0) e(3); /* create directory called "Dir" */
/* Change to Dir and verify that it worked. */
if (chdir("Dir") < 0) e(4); /* go to Dir */
s = getcwd(buf2, BUF_SIZE); /* get full path of Dir */
if (s == (char *) NULL) e(5); /* check for error return */
if (s != buf2) e(6); /* if successful, first arg is returned */
strcpy(tmp, base); /* concatenate base name and "/Dir" */
strcat(tmp, "/");
strcat(tmp, "Dir");
if (strcmp(tmp, s) != 0) e(7);
/* Change to ".." and verify that it worked. */
if (chdir("..") < 0) e(8);
if (getcwd(buf2, BUF_SIZE) != buf2) e(9);
if (strcmp(buf2, base) != 0) e(10);
/* Now make calls that do nothing, but do it in a strange way. */
if (chdir("Dir/..") < 0) e(11);
if (getcwd(buf2, BUF_SIZE) != buf2) e(12);
if (strcmp(buf2, base) != 0) e(13);
if (chdir("Dir/../Dir/..") < 0) e(14);
if (getcwd(buf2, BUF_SIZE) != buf2) e(15);
if (strcmp(buf2, base) != 0) e(16);
if (chdir("Dir/../Dir/../Dir/../Dir/../Dir/../Dir/../Dir/..") < 0) e(17);
if (getcwd(buf2, BUF_SIZE) != buf2) e(18);
if (strcmp(buf2, base) != 0) e(19);
/* Make Dir unreadable and unsearchable. Check error message. */
if (chmod("Dir", 0) < 0) e(20);
if (chdir("Dir") >= 0) e(21);
if (errno != EACCES) e(22);
/* Check error message for bad path. */
if (chmod("Dir", 0777) < 0) e(23);
if (chdir("Dir/x/y") != ERR_CODE) e(24);
if (errno != ENOENT) e(25);
if ( (fd=creat("Dir/x", 0777)) < 0) e(26);
if (close(fd) != 0) e(27);
if (chdir("Dir/x/y") != ERR_CODE) e(28);
if (errno != ENOTDIR) e(29);
/* Check empty string. */
if (chdir("") != ERR_CODE) e(30);
if (errno != ENOENT) e(31);
/* Remove the directory. */
if (unlink("Dir/x") != 0) e(32);
if (system("rmdir Dir") != 0) e(33);
}
void test20e()
{
/* Test open. */
int fd, bytes, bytes2;
char buf[RD_BUF];
subtest = 7;
unlink("T20"); /* get rid of it in case it exists */
/* Create a test file. */
bytes = strlen(str);
bytes2 = strlen(str2);
if ((fd = creat("T20", 0777)) < 0) e(1);
if (write(fd, str, bytes) != bytes) e(2); /* T20 now has 'bytes' bytes */
if (close(fd) != 0) e(3);
/* Test opening a file with O_RDONLY. */
if ((fd = open("T20", O_RDONLY)) < 0) e(4);
buf[0] = '\0';
if (read(fd, buf, RD_BUF) != bytes) e(5);
if (strncmp(buf, str, bytes) != 0) e(6);
if (close(fd) < 0) e(7);
/* Test the same thing, only with O_RDWR now. */
if ((fd = open("T20", O_RDWR)) < 0) e(8);
buf[0] = '\0';
if (read(fd, buf, RD_BUF) != bytes) e(9);
if (strncmp(buf, str, bytes) != 0) e(10);
if (close(fd) < 0) e(11);
/* Try opening and reading with O_WRONLY. It should fail. */
if ((fd = open("T20", O_WRONLY)) < 0) e(12);
buf[0] = '\0';
if (read(fd, buf, RD_BUF) >= 0) e(13);
if (close(fd) != 0) e(14);
/* Test O_APPEND. */
if ((fd = open("T20", O_RDWR | O_APPEND)) < 0) e(15);
if (lseek(fd, 0L, SEEK_SET) < 0) e(16); /* go to start of file */
if ( write(fd, str2, bytes2) != bytes2) e(17); /* write at start of file */
if (lseek(fd, 0L, SEEK_SET) < 0) e(18); /* go back to start again */
if (read(fd, buf, RD_BUF) != bytes + bytes2) e(19); /* read whole file */
if (strncmp(buf, str, bytes) != 0) e(20);
if (close(fd) != 0) e(21);
/* Get rid of the file. */
if (unlink("T20") < 0) e(22);
}
void test20f()
{
/* Test stat, fstat, umask. */
int i, fd;
mode_t m1;
struct stat stbuf1, stbuf2;
time_t t, t1;
subtest = 8;
m1 = umask(~0777);
if (system("rm -rf foo xxx") != 0) e(1);
if ((fd = creat("foo", 0777)) < 0) e(2);
if (stat("foo", &stbuf1) < 0) e(3);
if (fstat(fd, &stbuf2) < 0) e(4);
if (stbuf1.st_mode != stbuf2.st_mode) e(5);
if (stbuf1.st_ino != stbuf2.st_ino) e(6);
if (stbuf1.st_dev != stbuf2.st_dev) e(7);
if (stbuf1.st_nlink != stbuf2.st_nlink) e(8);
if (stbuf1.st_uid != stbuf2.st_uid) e(9);
if (stbuf1.st_gid != stbuf2.st_gid) e(10);
if (stbuf1.st_size != stbuf2.st_size) e(11);
if (stbuf1.st_atime != stbuf2.st_atime) e(12);
if (stbuf1.st_mtime != stbuf2.st_mtime) e(13);
if (stbuf1.st_ctime != stbuf2.st_ctime) e(14);
if (!S_ISREG(stbuf1.st_mode)) e(15);
if (S_ISDIR(stbuf1.st_mode)) e(16);
if (S_ISCHR(stbuf1.st_mode)) e(17);
if (S_ISBLK(stbuf1.st_mode)) e(18);
if (S_ISFIFO(stbuf1.st_mode)) e(19);
if ((stbuf1.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO)) != 0777) e(20);
if (stbuf1.st_nlink != 1) e(21);
if (stbuf1.st_uid != getuid()) e(22);
if (stbuf1.st_gid != getgid()) e(23);
if (stbuf1.st_size != 0L) e(24);
/* First unlink, then close -- harder test */
if (unlink("foo") < 0) e(25);
if (close(fd) < 0) e(26);
/* Now try umask a bit more. */
fd = 0;
if ((i = umask(~0704)) != 0) e(27);
if ((fd = creat("foo", 0777)) < 0) e(28);
if (stat("foo", &stbuf1) < 0) e(29);
if (fstat(fd, &stbuf2) < 0) e(30);
if (stbuf1.st_mode != stbuf2.st_mode) e(31);
if ((stbuf1.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO)) != 0704) e(32);
/* First unlink, then close -- harder test */
if (unlink("foo") < 0) e(33);
if (close(fd) < 0) e(34);
if (umask(m1) != 073) e(35);
/* Test some errors. */
if (system("mkdir Dir; date >Dir/x; chmod 666 Dir") != 0) e(36);
if (stat("Dir/x", &stbuf1) >= 0) e(37);
if (errno != EACCES) e(38);
if (stat("......", &stbuf1) >= 0) e(39);
if (errno != ENOENT) e(40);
if (stat("", &stbuf1) >= 0) e(41);
if (errno != ENOENT) e(42);
if (stat("xxx/yyy/zzz", &stbuf1) >= 0) e(43);
if (errno != ENOENT) e(44);
if (fstat(10000, &stbuf1) >= 0) e(45);
if (errno != EBADF) e(46);
if (chmod("Dir", 0777) != 0) e(47);
if (system("rm -rf foo Dir") != 0) e(48);
/* See if time looks reasonable. */
errno = 0;
t = time(&t1); /* current time */
if (t < 650000000L) e(49); /* 650000000 is Sept. 1990 */
unlink("T20f");
fd = creat("T20f", 0777);
if (fd < 0) e(50);
if (close(fd) < 0) e(51);
if (stat("T20f", &stbuf1) < 0) e(52);
if (stbuf1.st_mtime < t) e(53);
if (unlink("T20f") < 0) e(54);
}
void test20g()
{
/* Test link and unlink. */
int i, fd;
struct stat stbuf;
char name[4];
subtest = 9;
if (system("rm -rf L? L?? Dir; mkdir Dir") != 0) e(1);
if ( (fd = creat("L1", 0666)) < 0) e(2);
if (fstat(fd, &stbuf) != 0) e(3);
if (stbuf.st_nlink != 1) e(4);
if (link("L1", "L2") != 0) e(5);
if (fstat(fd, &stbuf) != 0) e(6);
if (stbuf.st_nlink != 2) e(7);
if (unlink("L2") != 0) e(8);
if (link("L1", "L2") != 0) e(9);
if (unlink("L1") != 0) e(10);
if (close(fd) != 0) e(11);
/* L2 exists at this point. */
if ( (fd = creat("L1", 0666)) < 0) e(12);
if (stat("L1", &stbuf) != 0) e(13);
if (stbuf.st_nlink != 1) e(14);
if (link("L1", "Dir/L2") != 0) e(15);
if (stat("L1", &stbuf) != 0) e(16);
if (stbuf.st_nlink != 2) e(17);
if (stat("Dir/L2", &stbuf) != 0) e(18);
if (stbuf.st_nlink != 2) e(19);
/* L1, L2, and Dir/L2 exist at this point. */
if (unlink("Dir/L2") != 0) e(20);
if (link("L1", "Dir/L2") != 0) e(21);
if (unlink("L1") != 0) e(22);
if (close(fd) != 0) e(23);
if (chdir("Dir") != 0) e(24);
if (unlink("L2") != 0) e(25);
if (chdir("..") != 0) e(26);
/* L2 exists at this point. Test linking to unsearchable dir. */
if (link("L2", "Dir/L2") != 0) e(27);
if (chmod("Dir", 0666) != 0) e(27);
if (link("L2", "Dir/L2") != -1) e(28);
if (errno != EACCES) e(29);
errno = 0;
if (link("Dir/L2", "L3") != -1) e(30);
if (errno != EACCES) e(31);
if (chmod("Dir", 0777) != 0) e(32);
if (unlink("Dir/L2") != 0) e(33);
if (unlink("L3") == 0) e(34);
/* L2 exists at this point. Test linking to unwriteable dir. */
if (chmod("Dir", 0555) != 0) e(35);
if (link("L2", "Dir/L2") != -1) e(36);
if (errno != EACCES) e(37);
if (chmod("Dir", 0777) != 0) e(38);
/* L2 exists at this point. Test linking mode 0 file. */
if (chmod("L2", 0) != 0) e(39);
if (link("L2", "L3") != 0) e(40);
if (stat("L3", &stbuf) != 0) e(41);
if (stbuf.st_nlink != 2) e(42);
if (unlink("L2") != 0) e(43);
/* L3 exists at this point. Test linking to an existing file. */
if ( (fd = creat("L1", 0666)) < 0) e(44);
if (link("L1", "L3") != -1) e(45);
if (errno != EEXIST) e(46);
errno = 0;
if (link("L1", "L1") != -1) e(47);
if (errno != EEXIST) e(48);
if (unlink("L3") != 0) e(49);
/* L1 exists at this point. Test creating too many links. */
if (LINK_MAX > 127) {
printf("[skip] "); /* takes too many resources */
} else {
name[0] = 'L';
name[1] = 'x';
name[2] = 1;
name[3] = 0;
for (i = 2; i <= LINK_MAX; i++) {
if (link("L1", name) != 0) e(50);
name[2]++;
}
if (stat("L1", &stbuf) != 0) e(51);
if (stbuf.st_nlink != LINK_MAX) e(52);
if (link("L1", "L2") != -1) e(53);
if (errno != EMLINK) e(54);
name[2] = 1;
for (i = 2; i <= LINK_MAX; i++) {
if (unlink(name) != 0) e(55);
name[2]++;
}
}
if (stat("L1", &stbuf) != 0) e(56);
if (stbuf.st_nlink != 1) e(57);
/* L1 exists. Test ENOENT. */
errno = 0;
if (link("xx/L1", "L2") != -1) e(58);
if (errno != ENOENT) e(59);
errno = 0;
if (link("L1", "xx/L2") != -1) e(60);
if (errno != ENOENT) e(61);
errno = 0;
if (link("L4", "L5") != -1) e(62);
if (errno != ENOENT) e(63);
errno = 0;
if (link("", "L5") != -1) e(64);
if (errno != ENOENT) e(65);
errno = 0;
if (link("L1", "") != -1) e(66);
if (errno != ENOENT) e(67);
/* L1 exists. Test ENOTDIR. */
errno = 0;
if (link("/dev/tty/x", "L2") != -1) e(68);
if (errno != ENOTDIR) e(69);
/* L1 exists. Test EPERM. */
if (link(".", "L2") != -1) e(70);
if (errno != EPERM) e(71);
/* L1 exists. Test unlink. */
if (link("L1", "Dir/L1") != 0) e(72);
if (chmod("Dir", 0666) != 0) e(73);
if (unlink("Dir/L1") != -1) e(74);
if (errno != EACCES) e(75);
errno = 0;
if (chmod("Dir", 0555) != 0) e(76);
if (unlink("Dir/L1") != -1) e(77);
if (errno != EACCES) e(78);
if (unlink("L7") != -1) e(79);
if (errno != ENOENT) e(80);
errno = 0;
if (unlink("") != -1) e(81);
if (errno != ENOENT) e(82);
if (unlink("Dir/L1/L2") != -1) e(83);
if (errno != ENOTDIR) e(84);
if (chmod("Dir", 0777) != 0) e(85);
if (unlink("Dir/L1") != 0) e(86);
if (unlink("Dir") != -1) e(87);
if (errno != EPERM) e(88);
if (unlink("L1") != 0) e(89);
if (system("rm -rf Dir") != 0) e(90);
if (close(fd) != 0) e(91);
}
void test20h()
{
/* Test access. */
int fd;
subtest = 10;
system("rm -rf A1");
if ( (fd = creat("A1", 0777)) < 0) e(1);
if (close(fd) != 0) e(2);
if (access("A1", R_OK) != 0) e(3);
if (access("A1", W_OK) != 0) e(4);
if (access("A1", X_OK) != 0) e(5);
if (access("A1", (R_OK|W_OK|X_OK)) != 0) e(6);
if (chmod("A1", 0400) != 0) e(7);
if (access("A1", R_OK) != 0) e(8);
if (access("A1", W_OK) != -1) e(9);
if (access("A1", X_OK) != -1) e(10);
if (access("A1", (R_OK|W_OK|X_OK)) != -1) e(11);
if (chmod("A1", 0077) != 0) e(12);
if (access("A1", R_OK) != -1) e(13);
if (access("A1", W_OK) != -1) e(14);
if (access("A1", X_OK) != -1) e(15);
if (access("A1", (R_OK|W_OK|X_OK)) != -1) e(16);
if (errno != EACCES) e(17);
if (access("", R_OK) != -1) e(18);
if (errno != ENOENT) e(19);
if (access("./A1/x", R_OK) != -1) e(20);
if (errno != ENOTDIR) e(21);
if (unlink("A1") != 0) e(22);
}
void test20i()
{
/* Test chmod. */
int fd, i;
struct stat stbuf;
subtest = 11;
system("rm -rf A1");
if ( (fd = creat("A1", 0777)) < 0) e(1);
for (i = 0; i < 511; i++) {
if (chmod("A1", i) != 0) e(100+i);
if (fstat(fd, &stbuf) != 0) e(200+i);
if ( (stbuf.st_mode&(S_IRWXU|S_IRWXG|S_IRWXO)) != i) e(300+i);
}
if (close(fd) != 0) e(2);
if (chmod("A1/x", 0777) != -1) e(3);
if (errno != ENOTDIR) e(4);
if (chmod("Axxx", 0777) != -1) e(5);
if (errno != ENOENT) e(6);
errno = 0;
if (chmod ("", 0777) != -1) e(7);
if (errno != ENOENT) e(8);
/* Now perform limited chown tests. These should work even as non su */
i = getuid();
/* DEBUG -- Not yet implemented
if (chown("A1", i, 0) != 0) e(9);
if (chown("A1", i, 1) != 0) e(10);
if (chown("A1", i, 2) != 0) e(11);
if (chown("A1", i, 3) != 0) e(12);
if (chown("A1", i, 4) != 0) e(13);
if (chown("A1", i, 0) != 0) e(14);
*/
if (unlink("A1") != 0) e(9);
}
void test20j()
{
/* Test utime. */
int fd;
time_t tloc;
struct utimbuf times;
struct stat stbuf;
subtest = 12;
if (system("rm -rf A2") != 0) e(1);
if ( (fd = creat("A2", 0666)) < 0) e(2);
times.modtime = 100;
if (utime("A2", &times) != 0) e(3);
if (stat("A2", &stbuf) != 0) e(4);
if (stbuf.st_mtime != 100) e(5);
tloc = time((time_t *)NULL); /* get current time */
times.modtime = tloc;
if (utime("A2", &times) != 0) e(6);
if (stat("A2", &stbuf) != 0) e(7);
if (stbuf.st_mtime != tloc) e(8);
if (close(fd) != 0) e(9);
if (unlink("A2") != 0) e(10);
}
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);
fflush(stdout); /* stdout and stderr are mixed horribly */
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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