parse_destid.c

openPBS的开放源代码

/*
*         OpenPBS (Portable Batch System) v2.3 Software License
* 
* Copyright (c) 1999-2000 Veridian Information Solutions, Inc.
* All rights reserved.
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* 
* This license covers use of the OpenPBS v2.3 software (the "Software") at
* your site or location, and, for certain users, redistribution of the
* Software to other sites and locations.  Use and redistribution of
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*/
/*
 *
 * parse_destination_id
 *
 * full syntax permitted;
 *
 * queue_name[@server_name[:port_number]]
 * @server_name[:port_number]
 *
 */

#include <pbs_config.h>   /* the master config generated by configure */

#include <string.h>
#include <ctype.h>
#include "pbs_ifl.h"

#define ISNAMECHAR(x) ( (isgraph(x)) && ((x) != '#') && ( (x) != '@') )
#define MAXSERVERNAME PBS_MAXSERVERNAME+PBS_MAXPORTNUM+2

static char queue_name[PBS_MAXQUEUENAME+1]; 
static int q_pos;
static char server_name[MAXSERVERNAME]; 
static int c_pos;

static char ident[] = "@(#) $RCSfile: parse_destid.c,v $ $Revision: 2.1.10.4 $";

int 
parse_destination_id(destination_in, queue_name_out, server_name_out) 
char *destination_in;
char **queue_name_out;
char **server_name_out;
{
    int i;
    char *c;

    /* initialize static data for this parsing call */
    for ( i=0; i<PBS_MAXQUEUENAME+1; i++ ) queue_name[i]='\0'; 
    q_pos= 0;
    for ( i=0; i<MAXSERVERNAME; i++ ) server_name[i]='\0';
    c_pos = 0;

    /* Begin the parse */
    c = destination_in;
    while ( isspace(*c) ) c++;

    /* Looking for a queue */
    while ( *c != '\0' ) {
        if ( ISNAMECHAR(*c) ) {
	    if ( q_pos >= PBS_MAXQUEUENAME ) return 1;
            queue_name[q_pos++]=*c;
        } else
            break;
        c++;
    }

    /* Looking for a server */
    if ( *c == '@' ) {
        c++;
        while ( *c != '\0' ) {
            if ( ISNAMECHAR(*c) ) {
	        if ( c_pos >= MAXSERVERNAME ) return 1;
                server_name[c_pos++]=*c;
            } else
                break;
            c++;
        }
	if ( c_pos == 0 ) return 1;
    }

    if ( *c != '\0' ) return 1;

    /* set char * pointers to static data, to arguments */
    if ( queue_name_out != NULL ) *queue_name_out = queue_name;
    if ( server_name_out != NULL ) *server_name_out = server_name;

    return 0;
}