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/*
* Copyright (C) 2000-2006 by CERN/IT/PDP/DM
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: Cns_listclass.c,v $ $Revision: 1.2 $ $Date: 2006/08/01 12:41:12 $ CERN IT-PDP/DM Jean-Philippe Baud";
#endif /* not lint */
/* Cns_listclass - list fileclass entries */
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#if defined(_WIN32)
#include <winsock2.h>
#else
#include <unistd.h>
#include <netinet/in.h>
#endif
#include "marshall.h"
#include "Cns_api.h"
#include "Cns.h"
#include "serrno.h"
struct Cns_fileclass *
Cns_listclass(char *server, int flags, Cns_list *listp)
{
int bol = 0;
int c;
char func[16];
gid_t gid;
int listentsz = sizeof(struct Cns_fileclass);
struct Cns_fileclass *lp;
int msglen;
int nbentries;
int nbtppools;
char *p;
char *q;
char *rbp;
char repbuf[LISTBUFSZ+4];
char *sbp;
char sendbuf[REQBUFSZ];
struct Cns_api_thread_info *thip;
uid_t uid;
strcpy (func, "Cns_listclass");
if (Cns_apiinit (&thip))
return (NULL);
uid = geteuid();
gid = getegid();
#if defined(_WIN32)
if (uid < 0 || gid < 0) {
Cns_errmsg (func, NS053);
serrno = SENOMAPFND;
return (NULL);
}
#endif
if (! listp) {
serrno = EFAULT;
return (NULL);
}
if (flags == CNS_LIST_BEGIN) {
memset (listp, 0, sizeof(Cns_list));
listp->fd = -1;
if ((listp->buf = malloc (LISTBUFSZ)) == NULL) {
serrno = ENOMEM;
return (NULL);
}
bol = 1;
}
if (listp->len == 0 && listp->eol /* all entries have been listed */
&& flags != CNS_LIST_END)
return (NULL);
if (listp->len == 0 /* no data in the cache */
|| flags == CNS_LIST_END) {
/* Build request header */
sbp = sendbuf;
marshall_LONG (sbp, CNS_MAGIC);
if (flags == CNS_LIST_END) {
marshall_LONG (sbp, CNS_ENDLIST);
} else {
marshall_LONG (sbp, CNS_LISTCLASS);
}
q = sbp; /* save pointer. The next field will be updated */
msglen = 3 * LONGSIZE;
marshall_LONG (sbp, msglen);
/* Build request body */
marshall_LONG (sbp, uid);
marshall_LONG (sbp, gid);
marshall_WORD (sbp, listentsz);
marshall_WORD (sbp, bol);
msglen = sbp - sendbuf;
marshall_LONG (q, msglen); /* update length field */
c = send2nsd (&listp->fd, server, sendbuf, msglen,
repbuf, sizeof(repbuf));
if (c < 0)
return (NULL);
if (flags == CNS_LIST_END) {
if (listp->buf)
free (listp->buf);
return (NULL);
}
rbp = repbuf;
unmarshall_WORD (rbp, nbentries);
if (nbentries == 0)
return (NULL); /* end of list */
/* unmarshall reply into Cns_fileclass structures */
lp = (struct Cns_fileclass *) listp->buf;
while (nbentries--) {
unmarshall_LONG (rbp, lp->classid);
unmarshall_STRING (rbp, lp->name);
unmarshall_LONG (rbp, lp->uid);
unmarshall_LONG (rbp, lp->gid);
unmarshall_LONG (rbp, lp->min_filesize);
unmarshall_LONG (rbp, lp->max_filesize);
unmarshall_LONG (rbp, lp->flags);
unmarshall_LONG (rbp, lp->maxdrives);
unmarshall_LONG (rbp, lp->max_segsize);
unmarshall_LONG (rbp, lp->migr_time_interval);
unmarshall_LONG (rbp, lp->mintime_beforemigr);
unmarshall_LONG (rbp, lp->nbcopies);
unmarshall_LONG (rbp, lp->retenp_on_disk);
unmarshall_LONG (rbp, lp->nbtppools);
nbtppools = lp->nbtppools;
lp->tppools = (char *) lp + listentsz;
p = lp->tppools;
while (nbtppools--) {
unmarshall_STRING (rbp, p);
p += (CA_MAXPOOLNAMELEN+1);
}
lp = (struct Cns_fileclass *)
(lp->tppools + lp->nbtppools * (CA_MAXCLASNAMELEN+1));
}
unmarshall_WORD (rbp, listp->eol);
listp->len = (char *) lp - listp->buf;
}
lp = (struct Cns_fileclass *) (listp->buf + listp->offset);
listp->offset += listentsz + lp->nbtppools * (CA_MAXCLASNAMELEN+1);
if (listp->offset >= listp->len) { /* must refill next time */
listp->offset = 0;
listp->len = 0;
}
return (lp);
}
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