+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like. Any license provided herein, whether implied or
+ * otherwise, applies only to this software file. Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA 94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include <ctype.h>
+
+#include <lib/hsm.h>
+
+#include <string.h>
+#include <malloc.h>
+#include <unistd.h>
+
+/*---------------------------------------------------------------------------
+
+Test program used to test the DMAPI function dm_read_invis(). The
+command line is:
+
+ handle_read_invis [-o offset] [-l length] [-s sid] handle
+
+where:
+'offset' is the offset of the start of the write (0 is the default),
+'length' is the length of the write in bytes (1 is the default),
+'sid' is the session ID whose events you you are interested in.
+'handle' is the ascii representation of the file's handle.
+ You can use the test tool path_to_handle to get this.
+
+----------------------------------------------------------------------------*/
+
+#ifndef linux
+extern char *sys_errlist[];
+#endif
+extern int optind;
+extern char *optarg;
+
+
+char *Progname;
+
+
+static void
+usage(void)
+{
+ fprintf(stderr, "usage:\t%s [-o offset] [-l length] "
+ "[-s sid] handle\n", Progname);
+ exit(1);
+}
+
+
+int
+main(
+ int argc,
+ char **argv)
+{
+ dm_sessid_t sid = DM_NO_SESSION;
+ char *han_str = NULL;
+ dm_off_t offset = 0;
+ dm_size_t length = 1;
+ char *bufp = NULL;
+ void *hanp;
+ size_t hlen;
+ dm_ssize_t rc;
+ char *name;
+ int opt;
+ int i;
+ int error;
+
+ if (Progname = strrchr(argv[0], '/')) {
+ Progname++;
+ } else {
+ Progname = argv[0];
+ }
+
+ /* Crack and validate the command line options. */
+
+ while ((opt = getopt(argc, argv, "o:l:s:")) != EOF) {
+ switch (opt) {
+ case 'o':
+ offset = atol(optarg);
+ break;
+ case 'l':
+ length = atol(optarg);
+ break;
+ case 's':
+ sid = atol(optarg);
+ break;
+ case '?':
+ usage();
+ }
+ }
+ if (optind + 1 != argc)
+ usage();
+ han_str = argv[optind];
+
+ if (dm_init_service(&name) == -1) {
+ fprintf(stderr, "Can't inititalize the DMAPI\n");
+ exit(1);
+ }
+ if (sid == DM_NO_SESSION)
+ find_test_session(&sid);
+
+ /* Get the file's handle. */
+
+ if ((error = atohan(han_str, &hanp, &hlen)) != 0) {
+ fprintf(stderr, "atohan() failed, %s\n", strerror(error));
+ return(1);
+ }
+
+ if (length > 0) {
+ /* In case it is a realtime file, align the buffer on a
+ sufficiently big boundary.
+ */
+ if ((bufp = memalign(4096, length)) == NULL) {
+ fprintf(stderr, "malloc of %llu bytes failed\n", length);
+ exit(1);
+ }
+ memset(bufp, '\0', length);
+ }
+
+ rc = dm_read_invis(sid, hanp, hlen, DM_NO_TOKEN, offset, length, bufp);
+
+ if (rc < 0) {
+ fprintf(stderr, "dm_read_invis failed, %s\n", strerror(errno));
+ exit(1);
+ } else if (rc != length) {
+ fprintf(stderr, "expected to read %lld bytes, actually "
+ "read %lld\n", length, rc);
+ exit(1);
+ }
+ for (i = 0; i < rc; i++) {
+ if (isprint(bufp[i])) {
+ fprintf(stdout, "%c", bufp[i]);
+ } else {
+ fprintf(stdout, "\\%03d", bufp[i]);
+ }
+ }
+ dm_handle_free(hanp, hlen);
+ exit(0);
+}
projects / xfstests-dev.git / commitdiff