Mercurial > illumos > onarm
annotate usr/src/cmd/machid/machid.c @ 13:f60a82e85167 default tip
Revert NEC's changes to fix krb5 build
| author | Andrew Stormont <andyjstormont@gmail.com> |
|---|---|
| date | Fri, 02 Mar 2012 22:25:26 +0000 |
| parents | 1a15d5aaf794 |
| children |
| rev | line source |
|---|---|
| 0 | 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 (c) 1993-1994, by Sun Microsystems, Inc. | |
| 24 */ | |
| 25 | |
| 26 /* | |
| 27 * This program replicates the function of the links from a machine name | |
| 28 * (such as sun4c) through /usr/kvm to true or false as appropriate. It | |
| 29 * knows the correct special cases. | |
| 30 * | |
| 31 * IMPORTANT NOTE: | |
| 32 * | |
| 33 * Do not modify this program to know about additional special cases or | |
| 34 * reflect new platforms or instruction set architectures. This is a | |
| 35 * deprecated interface and strictly for backwards compatibility. This | |
| 36 * is psarc/1992/171. Note the following excerpt from the opinion: | |
| 37 * | |
| 38 * It is most important to note that the manual page states in | |
| 39 * the NOTES section: "The machid family of commands is | |
| 40 * obsolete. Use uname -p and uname -m instead." | |
| 41 * | |
| 42 * The intent of Kernel Architecture Project team is to provide | |
| 43 * only enough functionality to mimic the existing definitions | |
| 44 * on the SPARC and Intel x86 versions of Solaris 2.x. No new | |
| 45 * identifiers will ever be added to the documented and | |
| 46 * undocumented identifiers listed above. | |
| 47 */ | |
| 48 | |
|
4
1a15d5aaf794
synchronized with onnv_86 (6202) in onnv-gate
Koji Uno <koji.uno@sun.com>
parents:
0
diff
changeset
|
49 #pragma ident "%Z%%M% %I% %E% SMI" |
| 0 | 50 |
| 51 #include <errno.h> | |
| 52 #include <stdlib.h> | |
| 53 #include <stdio.h> | |
| 54 #include <string.h> | |
| 55 #include <limits.h> | |
| 56 #include <sys/systeminfo.h> | |
| 57 | |
| 58 static char static_buf[SYS_NMLN]; | |
| 59 static char *progname; | |
| 60 | |
| 61 static void get_info_item(int command, char **buf, long *count); | |
| 62 | |
| 63 /* ARGSUSED */ | |
| 64 int | |
| 65 main(int argc, char *argv[], char *envp[]) | |
| 66 { | |
| 67 char *buf = &static_buf[0]; | |
| 68 long buflen = SYS_NMLN; | |
| 69 | |
| 70 if ((progname = strrchr(argv[0], '/')) == NULL) | |
| 71 progname = argv[0]; | |
| 72 else | |
| 73 progname++; | |
| 74 | |
| 75 /* | |
| 76 * First possible match is on the processor type. | |
| 77 * | |
| 78 * Special case for architectures: i386 matches i486 and visa versa. | |
| 79 */ | |
| 80 get_info_item(SI_ARCHITECTURE, &buf, &buflen); | |
| 81 if (strcmp(buf, progname) == 0) | |
| 82 return (0); | |
| 83 if ((strcmp(buf, "i386") == 0 && strcmp(progname, "i486") == 0) || | |
| 84 (strcmp(buf, "i486") == 0 && strcmp(progname, "i386") == 0)) | |
| 85 return (0); | |
| 86 | |
| 87 /* | |
| 88 * Next possible match is the machine, or more exactly, the value | |
| 89 * which would be returned by uname(2) in the machine field or uname(1) | |
| 90 * with the -m option. For historical reasons this is really is | |
| 91 * often a class of platforms which are identical to userland processes | |
| 92 * such as sun4c, sun4m, etc. | |
| 93 */ | |
| 94 get_info_item(SI_MACHINE, &buf, &buflen); | |
| 95 if (strcmp(buf, progname) == 0) | |
| 96 return (0); | |
| 97 | |
| 98 /* | |
| 99 * Finally, match the vendor. We hardwire in one historical match. | |
| 100 */ | |
| 101 get_info_item(SI_HW_PROVIDER, &buf, &buflen); | |
| 102 if (strcmp(buf, progname) == 0) | |
| 103 return (0); | |
| 104 if (strcasecmp(buf, "Sun_Microsystems") == 0 && | |
| 105 strcmp("sun", progname) == 0) | |
| 106 return (0); | |
| 107 | |
| 108 return (255); | |
| 109 } | |
| 110 | |
| 111 /* | |
| 112 * get_info_item is a wrapper around the sysinfo system call. It makes sure | |
| 113 * the buffer is large enough, returning a larger buffer if needed. On | |
| 114 * unrecoverable error, it exits. An error message doesn't help and makes | |
| 115 * this tiny program link stdio and maybe deal with internationalization, | |
| 116 * so the best thing is to die silently. Note that the larger buffer is | |
| 117 * retained for later use. Reality is that the buffer will always be big | |
| 118 * enough, but this is coded to the spec rather than implementation. | |
| 119 */ | |
| 120 static void | |
| 121 get_info_item(int command, char **buf, long *count) | |
| 122 { | |
| 123 long error; | |
| 124 | |
| 125 error = sysinfo(command, *buf, *count); | |
| 126 if (error > *count) { | |
| 127 *count = error; | |
| 128 if (*buf != static_buf) { | |
| 129 free(*buf); | |
| 130 } | |
| 131 *buf = (char *) malloc(*count); | |
| 132 error = sysinfo(command, *buf, *count); | |
| 133 } | |
| 134 | |
| 135 if (error == -1) | |
| 136 exit(-1); | |
| 137 } |