1 /* 2 * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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 #include <config.h> 35 #include "roken.h" 36 37 #ifndef HAVE_GETHOSTNAME 38 39 #ifdef HAVE_SYS_UTSNAME_H 40 #include <sys/utsname.h> 41 #endif 42 43 /* 44 * Return the local host's name in "name", up to "namelen" characters. 45 * "name" will be null-terminated if "namelen" is big enough. 46 * The return code is 0 on success, -1 on failure. (The calling 47 * interface is identical to gethostname(2).) 48 */ 49 50 ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL 51 gethostname(char *name, int namelen) 52 { 53 #if defined(HAVE_UNAME) 54 { 55 struct utsname utsname; 56 int ret; 57 58 ret = uname (&utsname); 59 if (ret < 0) 60 return ret; 61 strlcpy (name, utsname.nodename, namelen); 62 return 0; 63 } 64 #else 65 strlcpy (name, "some.random.host", namelen); 66 return 0; 67 #endif 68 } 69 70 #endif /* GETHOSTNAME */ 71