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 53 uname(struct utsname *uts) 54 { 55 return (bc_uname(uts)); 56 } 57 58 int 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