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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  * 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  *  * Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *  * Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in
     12  *    the documentation and/or other materials provided with the
     13  *    distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
     22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #pragma once
     30 
     31 /**
     32  * @file sys/utsname.h
     33  * @brief The uname() function.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 
     38 __BEGIN_DECLS
     39 
     40 /** The maximum length of any field in `struct utsname`. */
     41 #define SYS_NMLN 65
     42 
     43 /** The information returned by uname(). */
     44 struct utsname {
     45   /** The OS name. "Linux" on Android. */
     46   char sysname[SYS_NMLN];
     47   /** The name on the network. Typically "localhost" on Android. */
     48   char nodename[SYS_NMLN];
     49   /** The OS release. Typically something like "4.4.115-g442ad7fba0d" on Android. */
     50   char release[SYS_NMLN];
     51   /** The OS version. Typically something like "#1 SMP PREEMPT" on Android. */
     52   char version[SYS_NMLN];
     53   /** The hardware architecture. Typically "aarch64" on Android. */
     54   char machine[SYS_NMLN];
     55   /** The domain name set by setdomainname(). Typically "localdomain" on Android. */
     56   char domainname[SYS_NMLN];
     57 };
     58 
     59 /**
     60  * [uname(2)](http://man7.org/linux/man-pages/man2/uname.2.html) returns information
     61  * about the kernel.
     62  *
     63  * Returns 0 on success, and returns -1 and sets `errno` on failure.
     64  */
     65 int uname(struct utsname* __buf);
     66 
     67 __END_DECLS
     68