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/*
* $Id: access.c,v 1.1 2005/03/31 13:12:59 baud Exp $
*/
/*
* Copyright (C) 1990-2002 by CERN/IT/PDP/DM
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: access.c,v $ $Revision: 1.1 $ $Date: 2005/03/31 13:12:59 $ CERN/IT/PDP/DM Felix Hassine";
#endif /* not lint */
/* access.c Remote File I/O - get access status */
#define RFIO_KERNEL 1
#include "rfio.h" /* Remote File I/O general definitions */
int DLL_DECL rfio_access(filepath, mode) /* Remote file access */
char *filepath; /* remote file path */
int mode ; /* Access mode */
{
char buf[BUFSIZ]; /* General input/output buffer */
register int s; /* socket descriptor */
int status; /* remote fopen() status */
int len;
char *host, *filename;
char *p=buf;
int rt;
int uid ;
int gid ;
int parserc;
INIT_TRACE("RFIO_TRACE");
TRACE(1, "rfio", "rfio_access(%s, %d)", filepath, mode);
if (!(parserc = rfio_parseln(filepath,&host,&filename,NORDLINKS))) {
/* if not a remote file, must be local or HSM */
if ( host != NULL ) {
/*
* HSM file
*/
TRACE(1,"rfio","rfio_access: %s is an HSM path",filename);
END_TRACE();
rfio_errno = 0;
return(rfio_HsmIf_access(filename,mode));
}
TRACE(1, "rfio", "rfio_access: using local access(%s, %d)",
filename, mode);
END_TRACE();
rfio_errno = 0;
status = access(filename,mode);
if ( status < 0 ) serrno = 0;
return(status);
}
if (parserc < 0) {
END_TRACE();
return(-1);
}
s = rfio_connect(host,&rt);
if (s < 0) {
END_TRACE();
return(-1);
}
len = strlen(filename)+ 3*LONGSIZE+1;
if ( RQSTSIZE+len > BUFSIZ ) {
TRACE(2,"rfio","rfio_access: request too long %d (max %d)",
RQSTSIZE+len,BUFSIZ);
END_TRACE();
(void) netclose(s);
serrno = E2BIG;
return(-1);
}
marshall_WORD(p, RFIO_MAGIC);
marshall_WORD(p, RQST_ACCESS);
marshall_LONG(p, len);
uid = geteuid() ;
gid = getegid() ;
p= buf + RQSTSIZE;
marshall_STRING(p, filename);
marshall_LONG(p, uid) ;
marshall_LONG(p, gid) ;
marshall_LONG(p, mode);
TRACE(2,"rfio","rfio_access: sending %d bytes",RQSTSIZE+len) ;
if (netwrite_timeout(s,buf,RQSTSIZE+len,RFIO_CTRL_TIMEOUT) != (RQSTSIZE+len)) {
TRACE(2, "rfio", "rfio_access: write(): ERROR occured (errno=%d)", errno);
(void) netclose(s);
END_TRACE();
return(-1);
}
p = buf;
TRACE(2, "rfio", "rfio_access: reading %d bytes", LONGSIZE);
if (netread_timeout(s, buf, LONGSIZE, RFIO_CTRL_TIMEOUT) != LONGSIZE ) {
TRACE(2, "rfio", "rfio_access: read(): ERROR occured (errno=%d)", errno);
(void) netclose(s);
END_TRACE();
return(-1);
}
unmarshall_LONG(p, status);
TRACE(1, "rfio", "rfio_access: return %d",status);
rfio_errno = status;
(void) netclose(s);
if (status) {
END_TRACE();
return(-1);
}
END_TRACE();
return (0);
}
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