2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
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15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
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28 * For further information regarding this notice, see:
30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
41 /*---------------------------------------------------------------------------
43 Test program used to test the DMAPI function dm_read_invis(). The
46 handle_read_invis [-o offset] [-l length] [-s sid] handle
49 'offset' is the offset of the start of the write (0 is the default),
50 'length' is the length of the write in bytes (1 is the default),
51 'sid' is the session ID whose events you you are interested in.
52 'handle' is the ascii representation of the file's handle.
53 You can use the test tool path_to_handle to get this.
55 ----------------------------------------------------------------------------*/
58 extern char *sys_errlist[];
70 fprintf(stderr, "usage:\t%s [-o offset] [-l length] "
71 "[-s sid] handle\n", Progname);
81 dm_sessid_t sid = DM_NO_SESSION;
94 if (Progname = strrchr(argv[0], '/')) {
100 /* Crack and validate the command line options. */
102 while ((opt = getopt(argc, argv, "o:l:s:")) != EOF) {
105 offset = atol(optarg);
108 length = atol(optarg);
117 if (optind + 1 != argc)
119 han_str = argv[optind];
121 if (dm_init_service(&name) == -1) {
122 fprintf(stderr, "Can't initialize the DMAPI\n");
125 if (sid == DM_NO_SESSION)
126 find_test_session(&sid);
128 /* Get the file's handle. */
130 if ((error = atohan(han_str, &hanp, &hlen)) != 0) {
131 fprintf(stderr, "atohan() failed, %s\n", strerror(error));
136 /* In case it is a realtime file, align the buffer on a
137 sufficiently big boundary.
139 if ((bufp = memalign(4096, length)) == NULL) {
140 fprintf(stderr, "malloc of %llu bytes failed\n", length);
143 memset(bufp, '\0', length);
146 rc = dm_read_invis(sid, hanp, hlen, DM_NO_TOKEN, offset, length, bufp);
149 fprintf(stderr, "dm_read_invis failed, %s\n", strerror(errno));
151 } else if (rc != length) {
152 fprintf(stderr, "expected to read %lld bytes, actually "
153 "read %lld\n", length, rc);
156 for (i = 0; i < rc; i++) {
157 if (isprint(bufp[i])) {
158 fprintf(stdout, "%c", bufp[i]);
160 fprintf(stdout, "\\%03d", bufp[i]);
163 dm_handle_free(hanp, hlen);