1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 1991 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <errno.h>
28 #include <string.h>
29 #include <sys/utsname.h>
30 #include <sys/syscall.h>
31
32 /*
33 * utsname structure has a different format in SVr4/SunOS 5.0.
34 * The data needs to be mapped before returning to the user.
35 */
36
37 /*
38 * The following values and structure are from the SVR4 utsname.h.
39 */
40 #define NEW_SYS_NMLN 257
41 #define SYS_NMLN 9
42 #define SYS_NDLN 65
43
44 struct n_utsname {
45 char sysname[NEW_SYS_NMLN];
46 char nodename[NEW_SYS_NMLN];
47 char release[NEW_SYS_NMLN];
48 char version[NEW_SYS_NMLN];
49 char machine[NEW_SYS_NMLN];
50 };
51
52 int
uname(struct utsname * uts)53 uname(struct utsname *uts)
54 {
55 return (bc_uname(uts));
56 }
57
58 int
bc_uname(struct utsname * uts)59 bc_uname(struct utsname *uts)
60 {
61 struct n_utsname n_uts;
62 int ret;
63
64 if ((ret = _syscall(SYS_uname, &n_uts)) != -1) {
65 memcpy(uts->sysname, n_uts.sysname, SYS_NMLN);
66 if (strlen(n_uts.sysname) > SYS_NMLN)
67 uts->sysname[SYS_NMLN-1] = '\0';
68
69 /*
70 * The nodename was originally 9 bytes (including NUL), but a
71 * field was added, following it, extending it to SYS_NDLN.
72 * So we have to copy it in two passes
73 */
74 memcpy(uts->nodename, n_uts.nodename, SYS_NMLN);
75 memcpy(uts->nodeext, n_uts.nodename + SYS_NMLN,
76 SYS_NDLN - SYS_NMLN);
77 if (strlen(n_uts.nodename) > SYS_NDLN)
78 uts->nodeext[sizeof (uts->nodeext) - 1] = '\0';
79
80 memcpy(uts->release, n_uts.release, SYS_NMLN);
81 if (strlen(n_uts.release) > SYS_NMLN)
82 uts->release[SYS_NMLN-1] = '\0';
83 memcpy(uts->version, n_uts.version, SYS_NMLN);
84 if (strlen(n_uts.version) > SYS_NMLN)
85 uts->version[SYS_NMLN-1] = '\0';
86 memcpy(uts->machine, n_uts.machine, SYS_NMLN);
87 if (strlen(n_uts.machine) > SYS_NMLN)
88 uts->machine[SYS_NMLN-1] = '\0';
89 }
90
91 return (ret);
92 }
93