-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*/
/*
int main(int argc, char **argv)
{
- char *fname, *fname2;
- struct stat st;
- int fd, rc;
-
- if (argc < 2 || argc > 3) {
- fprintf(stderr, "usage: %s filename [filename2]\n", argv[0]);
- exit(1);
- }
-
- fname = argv[1];
- if (argc == 3)
- fname2 = argv[2];
- else
- fname2 = argv[1];
-
- fprintf(stderr, "opening\n");
- fd = open(fname, O_RDWR | O_TRUNC | O_CREAT, 0644);
- if (fd == -1) {
- fprintf(stderr, "open (normal) %s\n", strerror(errno));
- exit(1);
- }
-
- fprintf(stderr, "writing\n");
- rc = write(fd, T1, strlen(T1) + 1);
- if (rc != strlen(T1) + 1) {
- fprintf(stderr, "write (normal) %s (rc %d)\n",
- strerror(errno), rc);
- exit(1);
- }
-
- if (argc == 3) {
- fprintf (stderr, "unlinking %s\n", fname2);
- rc = unlink(fname2);
- if (rc) {
- fprintf(stderr, "unlink %s\n", strerror(errno));
- exit(1);
- }
- } else {
- printf("unlink %s and press enter\n", fname);
- getc(stdin);
- }
-
- fprintf(stderr, "accessing (1)\n");
- if (access(fname, F_OK) == 0) {
- fprintf(stderr, "%s still exists\n", fname2);
- exit(1);
- }
-
- fprintf(stderr, "seeking (1)\n");
- rc = lseek(fd, 0, SEEK_SET);
- if (rc) {
- fprintf(stderr, "seek %s\n", strerror(errno));
- exit(1);
- }
-
- fprintf(stderr, "accessing (2)\n");
- if (access(fname, F_OK) == 0) {
- fprintf(stderr, "%s still exists\n", fname);
- exit(1);
- }
-
- fprintf(stderr, "fstat...\n");
- rc = fstat(fd, &st);
- if (rc) {
- fprintf(stderr, "fstat (unlink) %s\n", strerror(errno));
- exit(1);
- }
- if (st.st_nlink != 0)
- fprintf(stderr, "st_nlink = %d\n", (int)st.st_nlink);
-
- fprintf(stderr, "reading\n");
- rc = read(fd, buf, strlen(T1) + 1);
- if (rc != strlen(T1) + 1) {
- fprintf(stderr, "read (unlink) %s (rc %d)\n",
- strerror(errno), rc);
- exit(1);
- }
-
- fprintf(stderr, "comparing data\n");
- if (memcmp(buf, T1, strlen(T1) + 1) ) {
- fprintf(stderr, "FAILURE: read wrong data after unlink\n");
- exit(1);
- }
-
- fprintf(stderr, "truncating\n");
- rc = ftruncate(fd, 0);
- if (rc) {
- fprintf(stderr, "truncate (unlink) %s\n", strerror(errno));
- exit(1);
- }
-
- fprintf(stderr, "seeking (2)\n");
- rc = lseek(fd, 0, SEEK_SET);
- if (rc) {
- fprintf(stderr, "seek (after unlink trunc) %s\n",
- strerror(errno));
- exit(1);
- }
-
- fprintf(stderr, "writing again\n");
- rc = write(fd, T2, strlen(T2) + 1);
- if (rc != strlen(T2) + 1) {
- fprintf(stderr, "write (after unlink trunc) %s (rc %d)\n",
- strerror(errno), rc);
- exit(1);
- }
-
- fprintf(stderr, "seeking (3)\n");
- rc = lseek(fd, 0, SEEK_SET);
- if (rc) {
- fprintf(stderr, "seek (before unlink read) %s\n",
- strerror(errno));
- exit(1);
- }
-
- fprintf(stderr, "reading again\n");
- rc = read(fd, buf, strlen(T2) + 1);
- if (rc != strlen(T2) + 1) {
- fprintf(stderr, "read (after unlink rewrite) %s (rc %d)\n",
- strerror(errno), rc);
- exit(1);
- }
-
- fprintf(stderr, "comparing data again\n");
- if (memcmp(buf, T2, strlen(T2) + 1)) {
- fprintf(stderr, "FAILURE: read wrong data after rewrite\n");
- exit(1);
- }
-
- fprintf(stderr, "closing\n");
- rc = close(fd);
- if (rc) {
- fprintf(stderr, "close (unlink) %s\n", strerror(errno));
- exit(1);
- }
-
- fprintf(stderr, "SUCCESS - goto beer\n");
- return 0;
+ char *fname, *fname2;
+ struct stat st;
+ int fd, rc;
+
+ if (argc < 2 || argc > 3) {
+ fprintf(stderr, "usage: %s filename [filename2]\n", argv[0]);
+ exit(1);
+ }
+
+ fname = argv[1];
+ if (argc == 3)
+ fname2 = argv[2];
+ else
+ fname2 = argv[1];
+
+ fprintf(stderr, "opening\n");
+ fd = open(fname, O_RDWR | O_TRUNC | O_CREAT, 0644);
+ if (fd == -1) {
+ fprintf(stderr, "open (normal) %s\n", strerror(errno));
+ exit(1);
+ }
+
+ fprintf(stderr, "writing\n");
+ rc = write(fd, T1, strlen(T1) + 1);
+ if (rc != strlen(T1) + 1) {
+ fprintf(stderr, "write (normal) %s (rc %d)\n",
+ strerror(errno), rc);
+ exit(1);
+ }
+
+ if (argc == 3) {
+ fprintf(stderr, "unlinking %s\n", fname2);
+ rc = unlink(fname2);
+ if (rc) {
+ fprintf(stderr, "unlink %s\n", strerror(errno));
+ exit(1);
+ }
+ } else {
+ printf("unlink %s and press enter\n", fname);
+ getc(stdin);
+ }
+
+ fprintf(stderr, "accessing (1)\n");
+ if (access(fname, F_OK) == 0) {
+ fprintf(stderr, "%s still exists\n", fname);
+ exit(1);
+ }
+
+ fprintf(stderr, "seeking (1)\n");
+ rc = lseek(fd, 0, SEEK_SET);
+ if (rc) {
+ fprintf(stderr, "seek %s\n", strerror(errno));
+ exit(1);
+ }
+
+ fprintf(stderr, "accessing (2)\n");
+ if (access(fname, F_OK) == 0) {
+ fprintf(stderr, "%s still exists\n", fname);
+ exit(1);
+ }
+
+ fprintf(stderr, "fstat...\n");
+ rc = fstat(fd, &st);
+ if (rc) {
+ fprintf(stderr, "fstat (unlink) %s\n", strerror(errno));
+ exit(1);
+ }
+ if (st.st_nlink != 0)
+ fprintf(stderr, "st_nlink = %d\n", (int)st.st_nlink);
+
+ fprintf(stderr, "reading\n");
+ rc = read(fd, buf, strlen(T1) + 1);
+ if (rc != strlen(T1) + 1) {
+ fprintf(stderr, "read (unlink) %s (rc %d)\n",
+ strerror(errno), rc);
+ exit(1);
+ }
+
+ fprintf(stderr, "comparing data\n");
+ if (memcmp(buf, T1, strlen(T1) + 1)) {
+ fprintf(stderr, "FAILURE: read wrong data after unlink\n");
+ exit(1);
+ }
+
+ fprintf(stderr, "truncating\n");
+ rc = ftruncate(fd, 0);
+ if (rc) {
+ fprintf(stderr, "truncate (unlink) %s\n", strerror(errno));
+ exit(1);
+ }
+
+ fprintf(stderr, "seeking (2)\n");
+ rc = lseek(fd, 0, SEEK_SET);
+ if (rc) {
+ fprintf(stderr, "seek (after unlink trunc) %s\n",
+ strerror(errno));
+ exit(1);
+ }
+
+ fprintf(stderr, "writing again\n");
+ rc = write(fd, T2, strlen(T2) + 1);
+ if (rc != strlen(T2) + 1) {
+ fprintf(stderr, "write (after unlink trunc) %s (rc %d)\n",
+ strerror(errno), rc);
+ exit(1);
+ }
+
+ fprintf(stderr, "seeking (3)\n");
+ rc = lseek(fd, 0, SEEK_SET);
+ if (rc) {
+ fprintf(stderr, "seek (before unlink read) %s\n",
+ strerror(errno));
+ exit(1);
+ }
+
+ fprintf(stderr, "reading again\n");
+ rc = read(fd, buf, strlen(T2) + 1);
+ if (rc != strlen(T2) + 1) {
+ fprintf(stderr, "read (after unlink rewrite) %s (rc %d)\n",
+ strerror(errno), rc);
+ exit(1);
+ }
+
+ fprintf(stderr, "comparing data again\n");
+ if (memcmp(buf, T2, strlen(T2) + 1)) {
+ fprintf(stderr, "FAILURE: read wrong data after rewrite\n");
+ exit(1);
+ }
+
+ fprintf(stderr, "closing\n");
+ rc = close(fd);
+ if (rc) {
+ fprintf(stderr, "close (unlink) %s\n", strerror(errno));
+ exit(1);
+ }
+
+ fprintf(stderr, "SUCCESS - goto beer\n");
+ return 0;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff