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/*
* @(#)op_unlk.c 1.4 2003/12/30 Connectathon Testsuite
* 1.3 Lachman ONC Test Suite source
*
* tests operation on open file which has been unlinked.
* steps taken:
* 1. create file
* 2. open for read/write
* 3. unlink file
* 4. write data
* 5. rewind
* 6. read data back
*/
#if defined (DOS) || defined (WIN32)
#define DOSorWIN32
#endif
#ifndef DOSorWIN32
#include <stdio.h>
#if defined(SVR3) || defined(SVR4)
#include <fcntl.h>
#else
#include <sys/file.h>
#endif
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#endif /* DOSorWIN32 */
#include "../tests.h"
#define TBUFSIZ 100
static char wbuf[TBUFSIZ], rbuf[TBUFSIZ];
static char buf[BUFSIZ];
#define TMSG "This is a test message written to the unlinked file\n"
static void
xxit(s)
char *s;
{
perror(s);
exit(1);
}
/*ARGSUSED*/
int
main(argc, argv)
int argc;
char *argv[];
{
int fd, ret;
char *tname;
int errcount = 0;
long lret;
int oflags; /* open flags */
setbuf(stdout, NULL);
#ifdef MACOSX
/* make sure TMPDIR isn't set */
unsetenv("TMPDIR");
#endif
if ((tname = tempnam(".", "nfs")) == NULL) {
fprintf(stderr, "can't construct a temporary filename: ");
xxit("tempnam");
}
oflags = O_CREAT|O_TRUNC|O_RDWR;
#ifdef DOSorWIN32
oflags |= O_BINARY;
#endif
if ((fd = open(tname, oflags, CHMOD_RW)) < 0) {
fprintf(stderr, "can't create %s: ", tname);
xxit("open");
}
#ifndef WIN32
/* For WIN you can not delete the file if it is open */
printf("nfsjunk files before unlink:\n ");
sprintf(buf, "ls -al %s", tname);
system(buf);
ret = unlink(tname);
printf("%s open; unlink ret = %d\n", tname, ret);
if (ret)
xxit(" unlink");
printf("nfsjunk files after unlink:\n ");
system(buf);
#endif
strcpy(wbuf, TMSG);
if ((ret = write(fd, wbuf, TBUFSIZ)) != TBUFSIZ) {
fprintf(stderr, "write ret %d; expected %d\n", ret, TBUFSIZ);
if (ret < 0)
perror(" write");
exit(1);
}
if ((lret = lseek(fd, 0L, 0)) != 0L) {
fprintf(stderr, "lseek ret %ld; expected 0\n", lret);
if (lret < 0)
perror(" lseek");
exit(1);
}
if ((ret = read(fd, rbuf, TBUFSIZ)) != TBUFSIZ) {
fprintf(stderr, "read ret %d; expected %d\n", ret, TBUFSIZ);
if (ret < 0)
perror(" read");
exit(1);
}
if (strcmp(wbuf, rbuf) != 0) {
errcount++;
printf("read data not same as written data\n");
printf(" written: '%s'\n read: '%s'\n", wbuf, rbuf);
} else {
printf("data compare ok\n");
}
if (unlink(tname) == 0) {
errcount++;
printf("Error: second unlink succeeded!??\n");
} else {
int expected;
#ifdef WIN32
expected = EACCES;
#else
expected = ENOENT;
#endif
if (errno != expected) {
errcount++;
perror("unexpected error on second unlink");
}
}
if (ret = close(fd)) {
errcount++;
perror("error on close");
}
#ifndef WIN32
printf("nfsjunk files after close:\n ");
system(buf);
#endif
if ((ret = close(fd)) == 0) {
errcount++;
fprintf(stderr, "second close didn't return error!??\n");
}
#ifdef DOSorWIN32
/*
* XXX return of 0 indicates success. Why does the error msg say
* "failed"?
*/
if ((ret = unlink(tname)) == 0) {
errcount++;
fprintf(stderr, "second unlink failed!??\n");
}
#endif
if (errcount == 0)
printf("test completed successfully.\n");
exit(errcount);
}
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