147 lines
3.6 KiB
C
147 lines
3.6 KiB
C
/*-
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* Copyright (c) 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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/*static char sccsid[] = "From: @(#)uname.c 8.1 (Berkeley) 1/4/94";*/
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#endif /* LIBC_SCCS and not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/utsname.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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int
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__xuname(int namesize, void *namebuf)
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{
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int mib[2], rval;
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size_t len;
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char *p, *q;
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int oerrno;
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rval = 0;
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q = (char *)namebuf;
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mib[0] = CTL_KERN;
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if ((p = getenv("UNAME_s")))
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strlcpy(q, p, namesize);
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else {
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mib[1] = KERN_OSTYPE;
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len = namesize;
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oerrno = errno;
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if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
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if (errno == ENOMEM)
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errno = oerrno;
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else
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rval = -1;
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}
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q[namesize - 1] = '\0';
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}
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q += namesize;
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mib[1] = KERN_HOSTNAME;
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len = namesize;
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oerrno = errno;
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if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
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if (errno == ENOMEM)
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errno = oerrno;
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else
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rval = -1;
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}
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q[namesize - 1] = '\0';
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q += namesize;
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if ((p = getenv("UNAME_r")))
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strlcpy(q, p, namesize);
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else {
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mib[1] = KERN_OSRELEASE;
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len = namesize;
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oerrno = errno;
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if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
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if (errno == ENOMEM)
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errno = oerrno;
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else
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rval = -1;
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}
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q[namesize - 1] = '\0';
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}
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q += namesize;
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if ((p = getenv("UNAME_v")))
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strlcpy(q, p, namesize);
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else {
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/*
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* The version may have newlines in it, turn them into
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* spaces.
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*/
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mib[1] = KERN_VERSION;
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len = namesize;
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oerrno = errno;
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if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
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if (errno == ENOMEM)
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errno = oerrno;
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else
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rval = -1;
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}
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q[namesize - 1] = '\0';
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for (p = q; len--; ++p) {
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if (*p == '\n' || *p == '\t') {
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if (len > 1)
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*p = ' ';
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else
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*p = '\0';
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}
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}
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}
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q += namesize;
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if ((p = getenv("UNAME_m")))
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strlcpy(q, p, namesize);
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else {
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mib[0] = CTL_HW;
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mib[1] = HW_MACHINE;
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len = namesize;
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oerrno = errno;
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if (sysctl(mib, 2, q, &len, NULL, 0) == -1) {
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if (errno == ENOMEM)
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errno = oerrno;
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else
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rval = -1;
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}
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q[namesize - 1] = '\0';
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}
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return (rval);
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}
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