66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/*
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* Copyright 1987, 1988 by the Massachusetts Institute of Technology.
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* For copying and distribution information, please see the file
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* <Copyright.MIT>.
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*
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* from: k_gethostname.c,v 4.1 88/12/01 14:04:42 jtkohl Exp $
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* $Id: k_gethostname.c,v 1.2 1994/07/19 19:25:36 g89r4222 Exp $
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*/
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#ifndef lint
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static char rcsid[] =
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"$Id: k_gethostname.c,v 1.2 1994/07/19 19:25:36 g89r4222 Exp $";
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#endif /* lint */
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#ifndef PC
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#ifndef BSD42
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/* teach me how to k_gethostname for your system here */
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#endif
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#endif
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#ifdef PC
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#include <stdio.h>
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typedef long in_name;
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#include "custom.h" /* where is this file? */
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extern get_custom();
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#define LEN 64 /* just a guess */
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#endif /* PC */
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/*
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* Return the local host's name in "name", up to "namelen" characters.
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* "name" will be null-terminated if "namelen" is big enough.
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* The return code is 0 on success, -1 on failure. (The calling
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* interface is identical to gethostname(2).)
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*
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* Currently defined for BSD 4.2 and PC. The BSD version just calls
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* gethostname(); the PC code was taken from "kinit.c", and may or may
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* not work.
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*/
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k_gethostname(name, namelen)
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char *name;
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{
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#ifdef BSD42
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return gethostname(name, namelen);
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#endif
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#ifdef PC
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char buf[LEN];
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char b1, b2, b3, b4;
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register char *ptr;
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get_custom(); /* should check for errors,
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* return -1 on failure */
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ptr = (char *) &(custom.c_me);
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b1 = *ptr++;
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b2 = *ptr++;
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b3 = *ptr++;
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b4 = *ptr;
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(void) sprintf(buf,"PC address %d.%d.%d.%d",b1,b2,b3,b4);
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if (strlen(buf) > namelen)
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fprintf(stderr, "gethostname: namelen too small; truncating");
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strnpcy(name, buf, namelen);
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return 0;
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#endif
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}
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