1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 1993-1994, by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate */
25*0Sstevel@tonic-gate
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate * This program replicates the function of the links from a machine name
28*0Sstevel@tonic-gate * (such as sun4c) through /usr/kvm to true or false as appropriate. It
29*0Sstevel@tonic-gate * knows the correct special cases.
30*0Sstevel@tonic-gate *
31*0Sstevel@tonic-gate * IMPORTANT NOTE:
32*0Sstevel@tonic-gate *
33*0Sstevel@tonic-gate * Do not modify this program to know about additional special cases or
34*0Sstevel@tonic-gate * reflect new platforms or instruction set architectures. This is a
35*0Sstevel@tonic-gate * deprecated interface and strictly for backwards compatibility. This
36*0Sstevel@tonic-gate * is psarc/1992/171. Note the following excerpt from the opinion:
37*0Sstevel@tonic-gate *
38*0Sstevel@tonic-gate * It is most important to note that the manual page states in
39*0Sstevel@tonic-gate * the NOTES section: "The machid family of commands is
40*0Sstevel@tonic-gate * obsolete. Use uname -p and uname -m instead."
41*0Sstevel@tonic-gate *
42*0Sstevel@tonic-gate * The intent of Kernel Architecture Project team is to provide
43*0Sstevel@tonic-gate * only enough functionality to mimic the existing definitions
44*0Sstevel@tonic-gate * on the SPARC and Intel x86 versions of Solaris 2.x. No new
45*0Sstevel@tonic-gate * identifiers will ever be added to the documented and
46*0Sstevel@tonic-gate * undocumented identifiers listed above.
47*0Sstevel@tonic-gate */
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
50*0Sstevel@tonic-gate
51*0Sstevel@tonic-gate #include <errno.h>
52*0Sstevel@tonic-gate #include <stdlib.h>
53*0Sstevel@tonic-gate #include <stdio.h>
54*0Sstevel@tonic-gate #include <string.h>
55*0Sstevel@tonic-gate #include <limits.h>
56*0Sstevel@tonic-gate #include <sys/systeminfo.h>
57*0Sstevel@tonic-gate
58*0Sstevel@tonic-gate static char static_buf[SYS_NMLN];
59*0Sstevel@tonic-gate static char *progname;
60*0Sstevel@tonic-gate
61*0Sstevel@tonic-gate static void get_info_item(int command, char **buf, long *count);
62*0Sstevel@tonic-gate
63*0Sstevel@tonic-gate /* ARGSUSED */
64*0Sstevel@tonic-gate int
main(int argc,char * argv[],char * envp[])65*0Sstevel@tonic-gate main(int argc, char *argv[], char *envp[])
66*0Sstevel@tonic-gate {
67*0Sstevel@tonic-gate char *buf = &static_buf[0];
68*0Sstevel@tonic-gate long buflen = SYS_NMLN;
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate if ((progname = strrchr(argv[0], '/')) == NULL)
71*0Sstevel@tonic-gate progname = argv[0];
72*0Sstevel@tonic-gate else
73*0Sstevel@tonic-gate progname++;
74*0Sstevel@tonic-gate
75*0Sstevel@tonic-gate /*
76*0Sstevel@tonic-gate * First possible match is on the processor type.
77*0Sstevel@tonic-gate *
78*0Sstevel@tonic-gate * Special case for architectures: i386 matches i486 and visa versa.
79*0Sstevel@tonic-gate */
80*0Sstevel@tonic-gate get_info_item(SI_ARCHITECTURE, &buf, &buflen);
81*0Sstevel@tonic-gate if (strcmp(buf, progname) == 0)
82*0Sstevel@tonic-gate return (0);
83*0Sstevel@tonic-gate if ((strcmp(buf, "i386") == 0 && strcmp(progname, "i486") == 0) ||
84*0Sstevel@tonic-gate (strcmp(buf, "i486") == 0 && strcmp(progname, "i386") == 0))
85*0Sstevel@tonic-gate return (0);
86*0Sstevel@tonic-gate
87*0Sstevel@tonic-gate /*
88*0Sstevel@tonic-gate * Next possible match is the machine, or more exactly, the value
89*0Sstevel@tonic-gate * which would be returned by uname(2) in the machine field or uname(1)
90*0Sstevel@tonic-gate * with the -m option. For historical reasons this is really is
91*0Sstevel@tonic-gate * often a class of platforms which are identical to userland processes
92*0Sstevel@tonic-gate * such as sun4c, sun4m, etc.
93*0Sstevel@tonic-gate */
94*0Sstevel@tonic-gate get_info_item(SI_MACHINE, &buf, &buflen);
95*0Sstevel@tonic-gate if (strcmp(buf, progname) == 0)
96*0Sstevel@tonic-gate return (0);
97*0Sstevel@tonic-gate
98*0Sstevel@tonic-gate /*
99*0Sstevel@tonic-gate * Finally, match the vendor. We hardwire in one historical match.
100*0Sstevel@tonic-gate */
101*0Sstevel@tonic-gate get_info_item(SI_HW_PROVIDER, &buf, &buflen);
102*0Sstevel@tonic-gate if (strcmp(buf, progname) == 0)
103*0Sstevel@tonic-gate return (0);
104*0Sstevel@tonic-gate if (strcasecmp(buf, "Sun_Microsystems") == 0 &&
105*0Sstevel@tonic-gate strcmp("sun", progname) == 0)
106*0Sstevel@tonic-gate return (0);
107*0Sstevel@tonic-gate
108*0Sstevel@tonic-gate return (255);
109*0Sstevel@tonic-gate }
110*0Sstevel@tonic-gate
111*0Sstevel@tonic-gate /*
112*0Sstevel@tonic-gate * get_info_item is a wrapper around the sysinfo system call. It makes sure
113*0Sstevel@tonic-gate * the buffer is large enough, returning a larger buffer if needed. On
114*0Sstevel@tonic-gate * unrecoverable error, it exits. An error message doesn't help and makes
115*0Sstevel@tonic-gate * this tiny program link stdio and maybe deal with internationalization,
116*0Sstevel@tonic-gate * so the best thing is to die silently. Note that the larger buffer is
117*0Sstevel@tonic-gate * retained for later use. Reality is that the buffer will always be big
118*0Sstevel@tonic-gate * enough, but this is coded to the spec rather than implementation.
119*0Sstevel@tonic-gate */
120*0Sstevel@tonic-gate static void
get_info_item(int command,char ** buf,long * count)121*0Sstevel@tonic-gate get_info_item(int command, char **buf, long *count)
122*0Sstevel@tonic-gate {
123*0Sstevel@tonic-gate long error;
124*0Sstevel@tonic-gate
125*0Sstevel@tonic-gate error = sysinfo(command, *buf, *count);
126*0Sstevel@tonic-gate if (error > *count) {
127*0Sstevel@tonic-gate *count = error;
128*0Sstevel@tonic-gate if (*buf != static_buf) {
129*0Sstevel@tonic-gate free(*buf);
130*0Sstevel@tonic-gate }
131*0Sstevel@tonic-gate *buf = (char *) malloc(*count);
132*0Sstevel@tonic-gate error = sysinfo(command, *buf, *count);
133*0Sstevel@tonic-gate }
134*0Sstevel@tonic-gate
135*0Sstevel@tonic-gate if (error == -1)
136*0Sstevel@tonic-gate exit(-1);
137*0Sstevel@tonic-gate }
138