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/*
* $Id: lstat.c,v 1.2 2007/12/04 11:25:43 dhsmith Exp $
*/
/*
* Copyright (C) 1990-2002 by CERN/IT/PDP/DM
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: lstat.c,v $ $Revision: 1.2 $ $Date: 2007/12/04 11:25:43 $ CERN/IT/PDP/DM Felix Hassine";
#endif /* not lint */
/* lstat.c Remote File I/O - get file status */
#define RFIO_KERNEL 1
#include <pwd.h>
#include "rfio.h"
#include <Cglobals.h>
#include <Cpwd.h>
static int pw_key = -1;
static int old_uid_key = -1;
int DLL_DECL rfio_lstat(filepath, statbuf) /* Remote file lstat */
char *filepath; /* remote file path */
struct stat *statbuf; /* status buffer */
{
#if (defined(__alpha) && defined(__osf__))
return (rfio_lstat64(filepath,statbuf));
#else
int lstatus; /* remote lstat() status */
#if defined(IRIX64) || defined(__ia64__) || defined(__x86_64) || defined(__ppc64__)
struct stat64 statb64;
if ((lstatus = rfio_lstat64(filepath,&statb64)) == 0)
(void) stat64tostat(&statb64, statbuf);
return (lstatus);
#else
register int s; /* socket descriptor */
char buf[BUFSIZ]; /* General input/output buffer */
int len;
int save_errno, save_serrno;
char *host, *filename;
char *p=buf;
int uid;
int gid;
int i;
struct passwd *pw_tmp;
struct passwd *pw = NULL;
int *old_uid = NULL;
int rt,rc,reqst,magic, parserc ;
INIT_TRACE("RFIO_TRACE");
TRACE(1, "rfio", "rfio_lstat(%s, %x)", filepath, statbuf);
if ( Cglobals_get(&old_uid_key, (void**)&old_uid, sizeof(int)) > 0 )
*old_uid = -1;
Cglobals_get(&pw_key, (void**)&pw, sizeof(struct passwd));
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_stat: %s is an HSM path",
filename);
END_TRACE();
rfio_errno = 0;
return(rfio_HsmIf_stat(filename,statbuf));
}
TRACE(1, "rfio", "rfio_lstat: using local lstat(%s, %x)",
filename, statbuf);
END_TRACE();
rfio_errno = 0;
#if !defined(_WIN32)
lstatus = lstat(filename,statbuf);
#else
lstatus = stat(filename,statbuf);
#endif /* _WIN32 */
if ( lstatus < 0 ) serrno = 0;
return(lstatus);
}
if (parserc < 0) {
END_TRACE();
return(-1);
}
serrno = 0;
magic = B_RFIO_MAGIC;
reqst = RQST_LSTAT_SEC;
s = rfio_connect(host,&rt);
if (s < 0) {
END_TRACE();
return(-1);
}
len = strlen(filename)+1;
p = buf;
marshall_WORD(p, magic);
marshall_WORD(p, reqst);
uid = geteuid();
gid = getegid();
if ( uid != *old_uid ) {
if ( (pw_tmp = Cgetpwuid(uid) ) == NULL ) {
TRACE(2, "rfio" ,"rfio_stat: Cgetpwuid(): ERROR occured (errno=%d)",errno);
END_TRACE();
(void) netclose(s);
return -1 ;
}
memcpy(pw, pw_tmp, sizeof(struct passwd));
*old_uid = uid;
}
len+=2*WORDSIZE + strlen(pw->pw_name) + 1;
if ( RQSTSIZE+len > BUFSIZ ) {
TRACE(2,"rfio","rfio_lstat: request too long %d (max %d)",RQSTSIZE+len,BUFSIZ);
END_TRACE();
(void) netclose(s);
serrno = E2BIG;
return(-1);
}
marshall_LONG(p, len);
p= buf + RQSTSIZE;
marshall_WORD(p, uid);
marshall_WORD(p, gid);
marshall_STRING(p, pw->pw_name);
marshall_STRING(p, filename);
TRACE(2,"rfio","rfio_lstat: sending %d bytes",RQSTSIZE+len) ;
if (netwrite_timeout(s,buf,RQSTSIZE+len,RFIO_CTRL_TIMEOUT) != (RQSTSIZE+len)) {
TRACE(2, "rfio", "rfio_lstat: write(): ERROR occured (errno=%d)", errno);
(void) netclose(s);
END_TRACE();
return(-1);
}
p = buf;
TRACE(2, "rfio", "rfio_lstat: reading %d bytes", 6*LONGSIZE+5*WORDSIZE);
if ((rc = netread_timeout(s, buf, 6*LONGSIZE+5*WORDSIZE,RFIO_CTRL_TIMEOUT)) != (6*LONGSIZE+5*WORDSIZE)) {
save_errno = errno, save_serrno = serrno;
#if !defined(_WIN32)
if (rc == 0 || (rc<0 && errno == ECONNRESET))
#else
if (rc == 0 || (rc<0 && serrno == SETIMEDOUT))
#endif
TRACE(2, "rfio", "rfio_lstat: read(): The connection with the server has been broken");
else
TRACE(2, "rfio", "rfio_lstat: read(): ERROR occured (errno=%d)", errno);
(void) netclose(s);
END_TRACE();
errno = save_errno; serrno = save_serrno;
return(-1);
}
unmarshall_WORD(p, statbuf->st_dev);
unmarshall_LONG(p, statbuf->st_ino);
unmarshall_WORD(p, statbuf->st_mode);
unmarshall_WORD(p, statbuf->st_nlink);
unmarshall_WORD(p, statbuf->st_uid);
unmarshall_WORD(p, statbuf->st_gid);
unmarshall_LONG(p, statbuf->st_size);
unmarshall_LONG(p, statbuf->st_atime);
unmarshall_LONG(p, statbuf->st_mtime);
unmarshall_LONG(p, statbuf->st_ctime);
unmarshall_LONG(p, lstatus);
TRACE(1, "rfio", "rfio_lstat: return %d",lstatus);
rfio_errno = lstatus;
(void) netclose(s);
if (lstatus) {
END_TRACE();
return(-1);
}
END_TRACE();
return (0);
#endif
#endif
}
int DLL_DECL rfio_lstat64(filepath, statbuf) /* Remote file lstat */
char *filepath; /* remote file path */
struct stat64 *statbuf; /* status buffer */
{
register int s; /* socket descriptor */
int status ;
char *host, *filename;
int rt, parserc ;
INIT_TRACE("RFIO_TRACE");
TRACE(1, "rfio", "rfio_lstat64(%s, %x)", filepath, statbuf);
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_lstat64: %s is an HSM path", filename);
END_TRACE();
rfio_errno = 0;
return(rfio_HsmIf_stat64(filename,statbuf));
}
TRACE(1, "rfio", "rfio_lstat64: using local lstat64(%s, %x)",
filename, statbuf);
END_TRACE();
rfio_errno = 0;
#if !defined(_WIN32)
status = lstat64(filename,statbuf);
#else
status = stat64(filename,statbuf);
#endif /* _WIN32 */
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);
}
END_TRACE();
status = rfio_smstat64(s, filename, statbuf, RQST_LSTAT64) ;
(void) netclose(s);
return (status);
}
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