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/*
* Copyright (C) 1999-2006 by CERN/IT/PDP/DM
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: Cns_access.c,v $ $Revision: 1.2 $ $Date: 2006/08/01 12:41:12 $ CERN IT-PDP/DM Jean-Philippe Baud";
#endif /* not lint */
/* Cns_access - check accessibility of a file/directory */
#include <errno.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"
int DLL_DECL
Cns_access(const char *path, int amode)
{
char *actual_path;
int c, n;
char func[16];
gid_t gid;
int msglen;
char *q;
char *sbp;
char sendbuf[REQBUFSZ];
char server[CA_MAXHOSTNAMELEN+1];
struct Cns_api_thread_info *thip;
uid_t uid;
strcpy (func, "Cns_access");
if (Cns_apiinit (&thip))
return (-1);
uid = getuid();
gid = getgid();
#if defined(_WIN32)
if (uid < 0 || gid < 0) {
Cns_errmsg (func, NS053);
serrno = SENOMAPFND;
return (-1);
}
#endif
if (! path) {
serrno = EFAULT;
return (-1);
}
if (strlen (path) > CA_MAXPATHLEN) {
serrno = ENAMETOOLONG;
return (-1);
}
if (Cns_selectsrvr (path, thip->server, server, &actual_path))
return (-1);
/* Build request header */
sbp = sendbuf;
marshall_LONG (sbp, CNS_MAGIC);
marshall_LONG (sbp, CNS_ACCESS);
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_HYPER (sbp, thip->cwd);
marshall_STRING (sbp, actual_path);
marshall_LONG (sbp, amode);
msglen = sbp - sendbuf;
marshall_LONG (q, msglen); /* update length field */
c = send2nsd (NULL, server, sendbuf, msglen, NULL, 0);
if (c && serrno == SENAMETOOLONG) serrno = ENAMETOOLONG;
return (c);
}
int DLL_DECL
Cns_accessr(const char *sfn, int amode)
{
int c;
char func[16];
gid_t gid;
int msglen;
char *q;
char *sbp;
char sendbuf[REQBUFSZ];
struct Cns_api_thread_info *thip;
uid_t uid;
strcpy (func, "Cns_accessr");
if (Cns_apiinit (&thip))
return (-1);
uid = geteuid();
gid = getegid();
#if defined(_WIN32)
if (uid < 0 || gid < 0) {
Cns_errmsg (func, NS053);
serrno = SENOMAPFND;
return (-1);
}
#endif
if (! sfn) {
serrno = EFAULT;
return (-1);
}
if (strlen (sfn) > CA_MAXSFNLEN) {
serrno = ENAMETOOLONG;
return (-1);
}
/* Build request header */
sbp = sendbuf;
marshall_LONG (sbp, CNS_MAGIC);
marshall_LONG (sbp, CNS_ACCESSR);
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_STRING (sbp, sfn);
marshall_LONG (sbp, amode);
msglen = sbp - sendbuf;
marshall_LONG (q, msglen); /* update length field */
c = send2nsd (NULL, NULL, sendbuf, msglen, NULL, 0);
if (c && serrno == SENAMETOOLONG) serrno = ENAMETOOLONG;
return (c);
}
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