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Annotation of src/lib/libc/gen/uname.c, Revision 1.1

1.1     ! cgd         1: /*-
        !             2:  * Copyright (c) 1994
        !             3:  *     The Regents of the University of California.  All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  */
        !            33:
        !            34: #if defined(LIBC_SCCS) && !defined(lint)
        !            35: static char sccsid[] = "@(#)uname.c    8.1 (Berkeley) 1/4/94";
        !            36: #endif /* LIBC_SCCS and not lint */
        !            37:
        !            38: #include <sys/param.h>
        !            39: #include <sys/sysctl.h>
        !            40: #include <sys/utsname.h>
        !            41:
        !            42: int
        !            43: uname(name)
        !            44:        struct utsname *name;
        !            45: {
        !            46:        int mib[2], rval;
        !            47:        size_t len;
        !            48:        char *p;
        !            49:
        !            50:        rval = 0;
        !            51:
        !            52:        mib[0] = CTL_KERN;
        !            53:        mib[1] = KERN_OSTYPE;
        !            54:        len = sizeof(name->sysname);
        !            55:        if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1)
        !            56:                rval = -1;
        !            57:
        !            58:        mib[0] = CTL_KERN;
        !            59:        mib[1] = KERN_HOSTNAME;
        !            60:        len = sizeof(name->nodename);
        !            61:        if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1)
        !            62:                rval = -1;
        !            63:
        !            64:        mib[0] = CTL_KERN;
        !            65:        mib[1] = KERN_OSRELEASE;
        !            66:        len = sizeof(name->release);
        !            67:        if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1)
        !            68:                rval = -1;
        !            69:
        !            70:        /* The version may have newlines in it, turn them into spaces. */
        !            71:        mib[0] = CTL_KERN;
        !            72:        mib[1] = KERN_VERSION;
        !            73:        len = sizeof(name->version);
        !            74:        if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1)
        !            75:                rval = -1;
        !            76:        else
        !            77:                for (p = name->version; len--; ++p)
        !            78:                        if (*p == '\n' || *p == '\t')
        !            79:                                if (len > 1)
        !            80:                                        *p = ' ';
        !            81:                                else
        !            82:                                        *p = '\0';
        !            83:
        !            84:        mib[0] = CTL_HW;
        !            85:        mib[1] = HW_MACHINE;
        !            86:        len = sizeof(name->machine);
        !            87:        if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1)
        !            88:                rval = -1;
        !            89:        return (rval);
        !            90: }

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