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getsysname_ew.c

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00001 
00002 /*
00003  *   THIS FILE IS UNDER RCS - DO NOT MODIFY UNLESS YOU HAVE
00004  *   CHECKED IT OUT USING THE COMMAND CHECKOUT.
00005  *
00006  *    $Id: getsysname__ew_8c-source.html 2161 2006-05-19 16:55:03Z paulf $
00007  *
00008  *    Revision history:
00009  *     $Log$
00009  *     Revision 1.1  2006/05/19 16:55:02  paulf
00009  *     first inclusion
00009  *
00010  *     Revision 1.1  2000/02/14 18:53:30  lucky
00011  *     Initial revision
00012  *
00013  *
00014  */
00015 
00016 /*
00017  *  getsysname_ew.c  - OS/2 version
00018  *
00019  *  Earthworm utility for getting the system name from the system
00020  * 
00021  */
00022 
00023 #include <stdio.h>
00024 #include <stdlib.h>
00025 #include <string.h>
00026 
00027 int getsysname_ew( char *sysname, int length )
00028 {
00029    char *str;
00030 
00031 /* Get system name from environment variable HOSTNAME
00032    **************************************************/
00033    str = getenv( "HOSTNAME" );
00034 
00035    if ( str == (char *) NULL )
00036    {
00037       fprintf( stderr, 
00038               "getsysname_ew: Environment variable HOSTNAME not defined.\n" );
00039       return( -1 );
00040    }
00041 
00042    if ( *str == '\0' ) 
00043    {
00044       fprintf( stderr, "getsysname_ew: Environment variable HOSTNAME" );
00045       fprintf( stderr, " defined, but has no value.\n" );
00046       return( -1 );
00047    }
00048 
00049 /* Copy system name to target address
00050  ************************************/
00051    if( strlen( str ) >= (size_t) length ) 
00052    {
00053       fprintf( stderr, "getsysname_ew: HOSTNAME too long for target address.\n" ); 
00054       return( -1 );
00055    }
00056 
00057    strcpy( sysname, str );
00058    return( 0 );
00059 }
00060 
00061 

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