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/*___INFO__MARK_BEGIN__*/
/*************************************************************************
*
* The Contents of this file are made available subject to the terms of
* the Sun Industry Standards Source License Version 1.2
*
* Sun Microsystems Inc., March, 2001
*
*
* Sun Industry Standards Source License Version 1.2
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.2 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://gridengine.sunsource.net/Gridengine_SISSL_license.html
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2001 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
************************************************************************/
/*___INFO__MARK_END__*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include "comm/commd.h"
#include "uti/sge_rmon.h"
#include "uti/sge_stdio.h"
#include "uti/sge_log.h"
#include "uti/setup_path.h"
#include "uti/sge_string.h"
#include "gdi/qm_name.h"
#include "gdi/sge_gdiP.h"
#include "basis_types.h"
#include "msg_gdilib.h"
/*-----------------------------------------------------------------------
* Read name of qmaster from master_file
* -> master_file
* <- return -1 error in err_str
* 0 host name of master in master_host
* don't copy error to err_str if err_str = NULL
* master_file name of file which should point to act_qmaster file
* copy name of qmaster host to master_host
*
* NOTES
* MT-NOTE: get_qm_name() is MT safe
*-----------------------------------------------------------------------*/
int get_qm_name(
char *master_host,
const char *master_file,
char *err_str,
size_t elen
) {
FILE *fp;
char buf[CL_MAXHOSTLEN*3+1], *cp, *first;
int len;
DENTER(TOP_LAYER, "get_qm_name");
if (!master_host || !master_file) {
if (err_str) {
if (master_host) {
snprintf(err_str, elen, SFNMAX, MSG_GDI_NULLPOINTERPASSED);
}
}
DRETURN(-1);
}
if (!(fp=fopen(master_file,"r"))) {
ERROR((SGE_EVENT, MSG_GDI_FOPEN_FAILED, master_file, strerror(errno)));
if (err_str) {
snprintf(err_str, elen, MSG_GDI_OPENMASTERFILEFAILED_S, master_file);
}
DRETURN(-1);
}
/* read file in one sweep and append O Byte to the end */
if (!(len = fread(buf, 1, CL_MAXHOSTLEN*3, fp))) {
if (err_str) {
snprintf(err_str, elen, MSG_GDI_READMASTERHOSTNAMEFAILED_S, master_file);
}
}
buf[len] = '\0';
/* Skip white space including newlines */
cp = buf;
while (*cp && (*cp == ' ' || *cp == '\t' || *cp == '\n'))
cp++;
first = cp;
/* read all non white space characters */
while (*cp && !(*cp == ' ' || *cp == '\t' || *cp == '\n')) {
cp++;
}
*cp = '\0';
len = cp - first;
if (len == 0) {
if (err_str) {
snprintf(err_str, elen, MSG_GDI_MASTERHOSTNAMEHASZEROLENGTH_S, master_file);
}
FCLOSE(fp);
DRETURN(-1);
}
if (len > CL_MAXHOSTLEN - 1) {
if (err_str) {
snprintf(err_str, elen, MSG_GDI_MASTERHOSTNAMEEXCEEDSCHARS_SI,
master_file, (int) CL_MAXHOSTLEN);
snprintf(err_str, elen, "\n");
}
FCLOSE(fp);
DRETURN(-1);
}
FCLOSE(fp);
sge_strlcpy(master_host, first, CL_MAXHOSTLEN);
DRETURN(0);
FCLOSE_ERROR:
DRETURN(-1);
}
/*********************************************************************
Write the actual qmaster into the master_file
-> master_file and master_host
<- return -1 error in err_str
0 means OK
NOTES
MT-NOTE: write_qm_name() is MT safe
*********************************************************************/
int write_qm_name(
const char *master_host,
const char *master_file,
char *err_str,
size_t elen
) {
FILE *fp;
if (!(fp = fopen(master_file, "w"))) {
if (err_str)
snprintf(err_str, elen, MSG_GDI_OPENWRITEMASTERHOSTNAMEFAILED_SS,
master_file, strerror(errno));
return -1;
}
if (fprintf(fp, "%s\n", master_host) == EOF) {
if (err_str)
snprintf(err_str, elen, MSG_GDI_WRITEMASTERHOSTNAMEFAILED_S,
master_file);
FCLOSE(fp);
return -1;
}
FCLOSE(fp);
return 0;
FCLOSE_ERROR:
return -1;
}
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