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minix/minix/tests/test21.c
Lionel Sambuc 433d6423c3 New sources layout 
Change-Id: Ic716f336b7071063997cf5b4dae6d50e0b4631e9
2014-07-31 16:00:30 +02:00

641 lines
18 KiB
C
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/* POSIX test program (21). Author: Andy Tanenbaum */
/* The following POSIX calls are tested:
*
* rename(), mkdir(), rmdir()
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#define ITERATIONS 1
int max_error = 3;
#include "common.h"
int main(int argc, char *argv []);
void test21a(void);
void test21b(void);
void test21c(void);
void test21d(void);
void test21e(void);
void test21f(void);
void test21g(void);
void test21h(void);
void test21i(void);
void test21k(void);
void test21l(void);
void test21m(void);
void test21n(void);
void test21o(void);
int get_link(char *name);
int main(argc, argv)
int argc;
char *argv[];
{
int i, m = 0xFFFF;
start(21);
if (argc == 2) m = atoi(argv[1]);
for (i = 0; i < ITERATIONS; i++) {
if (m & 00001) test21a();
if (m & 00002) test21b();
if (m & 00004) test21c();
if (m & 00010) test21d();
if (m & 00020) test21e();
if (m & 00040) test21f();
if (m & 01000) test21g();
if (m & 00200) test21h();
if (m & 00400) test21i();
if (m & 01000) test21k();
if (m & 02000) test21l();
if (m & 04000) test21m();
if (m & 010000) test21n();
if (m & 020000) test21o();
}
quit();
return(-1); /* Unreachable */
}
void test21a()
{
/* Test rename(). */
int fd, fd2;
char buf[PATH_MAX+1], buf1[PATH_MAX+1], buf2[PATH_MAX+1];
struct stat stat1, stat2;
subtest = 1;
unlink("A1"); /* get rid of it if it exists */
unlink("A2"); /* get rid of it if it exists */
unlink("A3"); /* get rid of it if it exists */
unlink("A4"); /* get rid of it if it exists */
unlink("A5"); /* get rid of it if it exists */
unlink("A6"); /* get rid of it if it exists */
unlink("A7"); /* get rid of it if it exists */
/* Basic test. Rename A1 to A2 and then A2 to A3. */
if ( (fd=creat("A1", 0666)) < 0) e(1);
if (write(fd, buf, 20) != 20) e(2);
if (close(fd) < 0) e(3);
if (rename("A1", "A2") < 0) e(4);
if ( (fd=open("A2", O_RDONLY)) < 0) e(5);
if (rename("A2", "A3") < 0) e(6);
if ( (fd2=open("A3", O_RDONLY)) < 0) e(7);
if (close(fd) != 0) e(8);
if (close(fd2) != 0) e(9);
if (unlink("A3") != 0) e(10);
/* Now get the absolute path name of the current directory using getcwd()
* and use it to test RENAME using different combinations of relative and
* absolute path names.
*/
if (getcwd(buf, PATH_MAX) == (char *) NULL) e(11);
if ( (fd = creat("A4", 0666)) < 0) e(12);
if (write(fd, buf, 30) != 30) e(13);
if (close(fd) != 0) e(14);
strcpy(buf1, buf);
strcat(buf1, "/A4");
if (rename(buf1, "A5") != 0) e(15); /* rename(absolute, relative) */
if (access("A5", 6) != 0) e(16); /* use access to see if file exists */
strcpy(buf2, buf);
strcat(buf2, "/A6");
if (rename("A5", buf2) != 0) e(17); /* rename(relative, absolute) */
if (access("A6", 6) != 0) e(18);
if (access(buf2, 6) != 0) e(19);
strcpy(buf1, buf);
strcat(buf1, "/A6");
strcpy(buf2, buf);
strcat(buf2, "/A7");
if (rename(buf1, buf2) != 0) e(20); /* rename(absolute, absolute) */
if (access("A7", 6) != 0) e(21);
if (access(buf2, 6) != 0) e(22);
/* Try renaming using names like "./A8" */
if (rename("A7", "./A8") != 0) e(23);
if (access("A8", 6) != 0) e(24);
if (rename("./A8", "A9") != 0) e(25);
if (access("A9", 6) != 0) e(26);
if (rename("./A9", "./A10") != 0) e(27);
if (access("A10", 6) != 0) e(28);
if (access("./A10", 6) != 0) e(29);
if (unlink("A10") != 0) e(30);
/* Now see if directories can be renamed. */
if (system("rm -rf ?uzzy scsi") != 0) e(31);
if (system("mkdir fuzzy") != 0) e(32);
if (rename("fuzzy", "wuzzy") != 0) e(33);
if ( (fd=creat("wuzzy/was_a_bear", 0666)) < 0) e(34);
if (access("wuzzy/was_a_bear", 6) != 0) e(35);
if (unlink("wuzzy/was_a_bear") != 0) e(36);
if (close(fd) != 0) e(37);
if (rename("wuzzy", "buzzy") != 0) e(38);
if (system("rmdir buzzy") != 0) e(39);
/* Now start testing the case that 'new' exists. */
if ( (fd = creat("horse", 0666)) < 0) e(40);
if ( (fd2 = creat("sheep", 0666)) < 0) e(41);
if (write(fd, buf, PATH_MAX) != PATH_MAX) e(42);
if (write(fd2, buf, 23) != 23) e(43);
if (stat("horse", &stat1) != 0) e(44);
if (rename("horse", "sheep") != 0) e(45);
if (stat("sheep", &stat2) != 0) e(46);
if (stat1.st_dev != stat2.st_dev) e(47);
if (stat1.st_ino != stat2.st_ino) e(48);
if (stat2.st_size != PATH_MAX) e(49);
if (access("horse", 6) == 0) e(50);
if (close(fd) != 0) e(51);
if (close(fd2) != 0) e(52);
if (rename("sheep", "sheep") != 0) e(53);
if (unlink("sheep") != 0) e(54);
/* Now try renaming something to a directory that already exists. */
if (system("mkdir fuzzy wuzzy") != 0) e(55);
if ( (fd = creat("fuzzy/was_a_bear", 0666)) < 0) e(56);
if (close(fd) != 0) e(57);
if (rename("fuzzy", "wuzzy") != 0) e(58); /* 'new' is empty dir */
if (system("mkdir scsi") != 0) e(59);
if (rename("scsi", "wuzzy") == 0) e(60); /* 'new' is full dir */
if (errno != EEXIST && errno != ENOTEMPTY) e(61);
/* Test 14 character names--always tricky. */
if (rename("wuzzy/was_a_bear", "wuzzy/was_not_a_bear") != 0) e(62);
if (access("wuzzy/was_not_a_bear", 6) != 0) e(63);
if (rename("wuzzy/was_not_a_bear", "wuzzy/was_not_a_duck") != 0) e(64);
if (access("wuzzy/was_not_a_duck", 6) != 0) e(65);
if (rename("wuzzy/was_not_a_duck", "wuzzy/was_a_bird") != 0) e(65);
if (access("wuzzy/was_a_bird", 6) != 0) e(66);
/* Test moves between directories. */
if (rename("wuzzy/was_a_bird", "beast") != 0) e(67);
if (access("beast", 6) != 0) e(68);
if (rename("beast", "wuzzy/was_a_cat") != 0) e(69);
if (access("wuzzy/was_a_cat", 6) != 0) e(70);
/* Test error conditions. 'scsi' and 'wuzzy/was_a_cat' exist now. */
if (rename("wuzzy/was_a_cat", "wuzzy/was_a_dog") != 0) e(71);
if (access("wuzzy/was_a_dog", 6) != 0) e(72);
if (chmod("wuzzy", 0) != 0) e(73);
errno = 0;
if (rename("wuzzy/was_a_dog", "wuzzy/was_a_pig") != -1) e(74);
if (errno != EACCES) e(75);
errno = 0;
if (rename("wuzzy/was_a_dog", "doggie") != -1) e(76);
if (errno != EACCES) e(77);
errno = 0;
if ( (fd = creat("beast", 0666)) < 0) e(78);
if (close(fd) != 0) e(79);
if (rename("beast", "wuzzy/was_a_twit") != -1) e(80);
if (errno != EACCES) e(81);
errno = 0;
if (rename("beast", "wuzzy") != -1) e(82);
if (errno != EISDIR) e(83);
errno = 0;
if (rename("beest", "baste") != -1) e(84);
if (errno != ENOENT) e(85);
errno = 0;
if (rename("wuzzy", "beast") != -1) e(86);
if (errno != ENOTDIR) e(87);
/* Test prefix rule. */
errno = 0;
if (chmod("wuzzy", 0777) != 0) e(88);
if (unlink("wuzzy/was_a_dog") != 0) e(89);
strcpy(buf1, buf);
strcat(buf1, "/wuzzy");
if (rename(buf, buf1) != -1) e(90);
if (errno != EINVAL) e(91);
if (system("rm -rf wuzzy beast scsi") != 0) e(92);
}
void test21b()
{
/* Test mkdir() and rmdir(). */
int i;
char name[3];
struct stat statbuf;
subtest = 2;
/* Simple stuff. */
if (mkdir("D1", 0700) != 0) e(1);
if (stat("D1", &statbuf) != 0) e(2);
if (!S_ISDIR(statbuf.st_mode)) e(3);
if ( (statbuf.st_mode & 0777) != 0700) e(4);
if (rmdir("D1") != 0) e(5);
/* Make and remove 40 directories. By doing so, the directory has to
* grow to 2 blocks. That presents plenty of opportunity for bugs.
*/
name[0] = 'D';
name[2] = '\0';
for (i = 0; i < 40; i++) {
name[1] = 'A' + i;
if (mkdir(name, 0700 + i%7) != 0) e(10+i); /* for simplicity */
}
for (i = 0; i < 40; i++) {
name[1] = 'A' + i;
if (rmdir(name) != 0) e(50+i);
}
}
void test21c()
{
/* Test mkdir() and rmdir(). */
subtest = 3;
if (mkdir("D1", 0777) != 0) e(1);
if (mkdir("D1/D2", 0777) != 0) e(2);
if (mkdir("D1/D2/D3", 0777) != 0) e(3);
if (mkdir("D1/D2/D3/D4", 0777) != 0) e(4);
if (mkdir("D1/D2/D3/D4/D5", 0777) != 0) e(5);
if (mkdir("D1/D2/D3/D4/D5/D6", 0777) != 0) e(6);
if (mkdir("D1/D2/D3/D4/D5/D6/D7", 0777) != 0) e(7);
if (mkdir("D1/D2/D3/D4/D5/D6/D7/D8", 0777) != 0) e(8);
if (mkdir("D1/D2/D3/D4/D5/D6/D7/D8/D9", 0777) != 0) e(9);
if (access("D1/D2/D3/D4/D5/D6/D7/D8/D9", 7) != 0) e(10);
if (rmdir("D1/D2/D3/D4/D5/D6/D7/D8/D9") != 0) e(11);
if (rmdir("D1/D2/D3/D4/D5/D6/D7/D8") != 0) e(12);
if (rmdir("D1/D2/D3/D4/D5/D6/D7") != 0) e(13);
if (rmdir("D1/D2/D3/D4/D5/D6") != 0) e(11);
if (rmdir("D1/D2/D3/D4/D5") != 0) e(13);
if (rmdir("D1/D2/D3/D4") != 0) e(14);
if (rmdir("D1/D2/D3") != 0) e(15);
if (rmdir("D1/D2") != 0) e(16);
if (rmdir("D1") != 0) e(17);
}
void test21d()
{
/* Test making directories with files and directories in them. */
int fd1, fd2, fd3, fd4, fd5, fd6, fd7, fd8, fd9;
subtest = 4;
if (mkdir("D1", 0777) != 0) e(1);
if (mkdir("D1/D2", 0777) != 0) e(2);
if (mkdir("./D1/D3", 0777) != 0) e(3);
if (mkdir("././D1/D4", 0777) != 0) e(4);
if ( (fd1 = creat("D1/D2/x", 0700)) < 0) e(5);
if ( (fd2 = creat("D1/D2/y", 0700)) < 0) e(6);
if ( (fd3 = creat("D1/D2/z", 0700)) < 0) e(7);
if ( (fd4 = creat("D1/D3/x", 0700)) < 0) e(8);
if ( (fd5 = creat("D1/D3/y", 0700)) < 0) e(9);
if ( (fd6 = creat("D1/D3/z", 0700)) < 0) e(10);
if ( (fd7 = creat("D1/D4/x", 0700)) < 0) e(11);
if ( (fd8 = creat("D1/D4/y", 0700)) < 0) e(12);
if ( (fd9 = creat("D1/D4/z", 0700)) < 0) e(13);
if (unlink("D1/D2/z") != 0) e(14);
if (unlink("D1/D2/y") != 0) e(15);
if (unlink("D1/D2/x") != 0) e(16);
if (unlink("D1/D3/x") != 0) e(17);
if (unlink("D1/D3/z") != 0) e(18);
if (unlink("D1/D3/y") != 0) e(19);
if (unlink("D1/D4/y") != 0) e(20);
if (unlink("D1/D4/z") != 0) e(21);
if (unlink("D1/D4/x") != 0) e(22);
if (rmdir("D1/D2") != 0) e(23);
if (rmdir("D1/D3") != 0) e(24);
if (rmdir("D1/D4") != 0) e(25);
if (rmdir("D1") != 0) e(26);
if (close(fd1) != 0) e(27);
if (close(fd2) != 0) e(28);
if (close(fd3) != 0) e(29);
if (close(fd4) != 0) e(30);
if (close(fd5) != 0) e(31);
if (close(fd6) != 0) e(32);
if (close(fd7) != 0) e(33);
if (close(fd8) != 0) e(34);
if (close(fd9) != 0) e(35);
}
void test21e()
{
/* Test error conditions. */
subtest = 5;
if (mkdir("D1", 0677) != 0) e(1);
errno = 0;
if (mkdir("D1/D2", 0777) != -1) e(2);
if (errno != EACCES) e(3);
if (chmod ("D1", 0577) != 0) e(4);
errno = 0;
if (mkdir("D1/D2", 0777) != -1) e(5);
if (errno != EACCES) e(6);
if (chmod ("D1", 0777) != 0) e(7);
errno = 0;
if (mkdir("D1", 0777) != -1) e(8);
if (errno != EEXIST) e(9);
errno = 0;
if (mkdir("D1/D2/x", 0777) != -1) e(14);
if (errno != ENOENT) e(15);
/* A particularly nasty test is when the parent has mode 0. Although
* this is unlikely to work, it had better not muck up the file system
*/
if (mkdir("D1/D2", 0777) != 0) e(16);
if (chmod("D1", 0) != 0) e(17);
errno = 0;
if (rmdir("D1/D2") != -1) e(18);
if (errno != EACCES) e(19);
if (chmod("D1", 0777) != 0) e(20);
if (rmdir("D1/D2") != 0) e(21);
if (rmdir("D1") != 0) e(22);
}
void test21f()
{
/* The rename() function affects the link count of all the files and
* directories it goes near. Test to make sure it gets everything ok.
* There are four cases:
*
* 1. rename("d1/file1", "d1/file2"); - rename file without moving it
* 2. rename("d1/file1", "d2/file2"); - move a file to another dir
* 3. rename("d1/dir1", "d2/dir2"); - rename a dir without moving it
* 4. rename("d1/dir1", "d2/dir2"); - move a dir to another dir
*
* Furthermore, a distinction has to be made when the target file exists
* and when it does not exist, giving 8 cases in all.
*/
int fd, D1_before, D1_after, x_link, y_link;
/* Test case 1: renaming a file within the same directory. */
subtest = 6;
if (mkdir("D1", 0777) != 0) e(1);
if ( (fd = creat("D1/x", 0777)) < 0) e(2);
if (close(fd) != 0) e(3);
D1_before = get_link("D1");
x_link = get_link("D1/x");
if (rename("D1/x", "D1/y") != 0) e(4);
y_link = get_link("D1/y");
D1_after = get_link("D1");
if (D1_before != 2) e(5);
if (D1_after != 2) e(6);
if (x_link != 1) e(7);
if (y_link != 1) e(8);
if (access("D1/y", 7) != 0) e(9);
if (unlink("D1/y") != 0) e(10);
if (rmdir("D1") != 0) e(11);
}
void test21g()
{
int fd, D1_before, D1_after, D2_before, D2_after, x_link, y_link;
/* Test case 2: move a file to a new directory. */
subtest = 7;
if (mkdir("D1", 0777) != 0) e(1);
if (mkdir("D2", 0777) != 0) e(2);
if ( (fd = creat("D1/x", 0777)) < 0) e(3);
if (close(fd) != 0) e(4);
D1_before = get_link("D1");
D2_before = get_link("D2");
x_link = get_link("D1/x");
if (rename("D1/x", "D2/y") != 0) e(5);
y_link = get_link("D2/y");
D1_after = get_link("D1");
D2_after = get_link("D2");
if (D1_before != 2) e(6);
if (D2_before != 2) e(7);
if (D1_after != 2) e(8);
if (D2_after != 2) e(9);
if (x_link != 1) e(10);
if (y_link != 1) e(11);
if (access("D2/y", 7) != 0) e(12);
if (unlink("D2/y") != 0) e(13);
if (rmdir("D1") != 0) e(14);
if (rmdir("D2") != 0) e(15);
}
void test21h()
{
int D1_before, D1_after, x_link, y_link;
/* Test case 3: renaming a directory within the same directory. */
subtest = 8;
if (mkdir("D1", 0777) != 0) e(1);
if (mkdir("D1/X", 0777) != 0) e(2);
D1_before = get_link("D1");
x_link = get_link("D1/X");
if (rename("D1/X", "D1/Y") != 0) e(3);
y_link = get_link("D1/Y");
D1_after = get_link("D1");
if (D1_before != 3) e(4);
if (D1_after != 3) e(5);
if (x_link != 2) e(6);
if (y_link != 2) e(7);
if (access("D1/Y", 7) != 0) e(8);
if (rmdir("D1/Y") != 0) e(9);
if (get_link("D1") != 2) e(10);
if (rmdir("D1") != 0) e(11);
}
void test21i()
{
int D1_before, D1_after, D2_before, D2_after, x_link, y_link;
/* Test case 4: move a directory to a new directory. */
subtest = 9;
if (mkdir("D1", 0777) != 0) e(1);
if (mkdir("D2", 0777) != 0) e(2);
if (mkdir("D1/X", 0777) != 0) e(3);
D1_before = get_link("D1");
D2_before = get_link("D2");
x_link = get_link("D1/X");
if (rename("D1/X", "D2/Y") != 0) e(4);
y_link = get_link("D2/Y");
D1_after = get_link("D1");
D2_after = get_link("D2");
if (D1_before != 3) e(5);
if (D2_before != 2) e(6);
if (D1_after != 2) e(7);
if (D2_after != 3) e(8);
if (x_link != 2) e(9);
if (y_link != 2) e(10);
if (access("D2/Y", 7) != 0) e(11);
if (rename("D2/Y", "D1/Z") != 0) e(12);
if (get_link("D1") != 3) e(13);
if (get_link("D2") != 2) e(14);
if (rmdir("D1/Z") != 0) e(15);
if (get_link("D1") != 2) e(16);
if (rmdir("D1") != 0) e(17);
if (rmdir("D2") != 0) e(18);
}
void test21k()
{
/* Now test the same 4 cases, except when the target exists. */
int fd, D1_before, D1_after, x_link, y_link;
/* Test case 5: renaming a file within the same directory. */
subtest = 10;
if (mkdir("D1", 0777) != 0) e(1);
if ( (fd = creat("D1/x", 0777)) < 0) e(2);
if (close(fd) != 0) e(3);
if ( (fd = creat("D1/y", 0777)) < 0) e(3);
if (close(fd) != 0) e(4);
D1_before = get_link("D1");
x_link = get_link("D1/x");
if (rename("D1/x", "D1/y") != 0) e(5);
y_link = get_link("D1/y");
D1_after = get_link("D1");
if (D1_before != 2) e(6);
if (D1_after != 2) e(7);
if (x_link != 1) e(8);
if (y_link != 1) e(9);
if (access("D1/y", 7) != 0) e(10);
if (unlink("D1/y") != 0) e(11);
if (rmdir("D1") != 0) e(12);
}
void test21l()
{
int fd, D1_before, D1_after, D2_before, D2_after, x_link, y_link;
/* Test case 6: move a file to a new directory. */
subtest = 11;
if (mkdir("D1", 0777) != 0) e(1);
if (mkdir("D2", 0777) != 0) e(2);
if ( (fd = creat("D1/x", 0777)) < 0) e(3);
if (close(fd) != 0) e(4);
if ( (fd = creat("D2/y", 0777)) < 0) e(5);
if (close(fd) != 0) e(6);
D1_before = get_link("D1");
D2_before = get_link("D2");
x_link = get_link("D1/x");
if (rename("D1/x", "D2/y") != 0) e(7);
y_link = get_link("D2/y");
D1_after = get_link("D1");
D2_after = get_link("D2");
if (D1_before != 2) e(8);
if (D2_before != 2) e(9);
if (D1_after != 2) e(10);
if (D2_after != 2) e(11);
if (x_link != 1) e(12);
if (y_link != 1) e(13);
if (access("D2/y", 7) != 0) e(14);
if (unlink("D2/y") != 0) e(15);
if (rmdir("D1") != 0) e(16);
if (rmdir("D2") != 0) e(17);
}
void test21m()
{
int D1_before, D1_after, x_link, y_link;
/* Test case 7: renaming a directory within the same directory. */
subtest = 12;
if (mkdir("D1", 0777) != 0) e(1);
if (mkdir("D1/X", 0777) != 0) e(2);
if (mkdir("D1/Y", 0777) != 0) e(3);
D1_before = get_link("D1");
x_link = get_link("D1/X");
if (rename("D1/X", "D1/Y") != 0) e(4);
y_link = get_link("D1/Y");
D1_after = get_link("D1");
if (D1_before != 4) e(5);
if (D1_after != 3) e(6);
if (x_link != 2) e(7);
if (y_link != 2) e(8);
if (access("D1/Y", 7) != 0) e(9);
if (rmdir("D1/Y") != 0) e(10);
if (get_link("D1") != 2) e(11);
if (rmdir("D1") != 0) e(12);
}
void test21n()
{
int D1_before, D1_after, D2_before, D2_after, x_link, y_link;
/* Test case 8: move a directory to a new directory. */
subtest = 13;
if (mkdir("D1", 0777) != 0) e(1);
if (mkdir("D2", 0777) != 0) e(2);
if (mkdir("D1/X", 0777) != 0) e(3);
if (mkdir("D2/Y", 0777) != 0) e(4);
D1_before = get_link("D1");
D2_before = get_link("D2");
x_link = get_link("D1/X");
if (rename("D1/X", "D2/Y") != 0) e(5);
y_link = get_link("D2/Y");
D1_after = get_link("D1");
D2_after = get_link("D2");
if (D1_before != 3) e(6);
if (D2_before != 3) e(7);
if (D1_after != 2) e(8);
if (D2_after != 3) e(9);
if (x_link != 2) e(10);
if (y_link != 2) e(11);
if (access("D2/Y", 7) != 0) e(12);
if (rename("D2/Y", "D1/Z") != 0) e(13);
if (get_link("D1") != 3) e(14);
if (get_link("D2") != 2) e(15);
if (rmdir("D1/Z") != 0) e(16);
if (get_link("D1") != 2) e(17);
if (rmdir("D1") != 0) e(18);
if (rmdir("D2") != 0) e(19);
}
void test21o()
{
/* Test trying to remove . and .. */
subtest = 14;
if (mkdir("D1", 0777) != 0) e(1);
if (chdir("D1") != 0) e(2);
if (rmdir(".") == 0) e(3);
if (rmdir("..") == 0) e(4);
if (mkdir("D2", 0777) != 0) e(5);
if (mkdir("D3", 0777) != 0) e(6);
if (mkdir("D4", 0777) != 0) e(7);
if (rmdir("D2/../D3/../D4") != 0) e(8); /* legal way to remove D4 */
if (rmdir("D2/../D3/../D2/..") == 0) e(9); /* removing self is illegal */
if (rmdir("D2/../D3/../D2/../..") == 0) e(10);/* removing parent is illegal*/
if (rmdir("../D1/../D1/D3") != 0) e(11); /* legal way to remove D3 */
if (rmdir("./D2/../D2") != 0) e(12); /* legal way to remove D2 */
if (chdir("..") != 0) e(13);
if (rmdir("D1") != 0) e(14);
}
int get_link(name)
char *name;
{
struct stat statbuf;
if (stat(name, &statbuf) != 0) {
printf("Unable to stat %s\n", name);
errct++;
return(-1);
}
return(statbuf.st_nlink);
}
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