1RFIO_ACCESS(3)              Rfio Library Functions              RFIO_ACCESS(3)
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NAME

6       rfio_access - check existence/accessibility of a file/directory
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SYNOPSIS

9       Under Unix:
10       #include <sys/types.h>
11       #include <unistd.h>
12       #include "rfio_api.h"
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14       Under Windows/NT:
15       #include <sys/types.h>
16       #define R_OK 4
17       #define W_OK 2
18       #define X_OK 1
19       #define F_OK 0
20       #include "rfio_api.h"
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22       int rfio_access (const char *path, int amode);
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DESCRIPTION

25       rfio_access   checks   the   existence  or  the  accessibility  of  the
26       file/directory path according to the bit pattern  in  amode  using  the
27       real user ID.
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29       path   specifies the logical pathname relative to the current directory
30              or the full pathname.
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32       amode  the bit pattern is built by an OR of the  constants  defined  in
33              <unistd.h>  under  Unix  or  to be explicitly defined under Win‐
34              dows/NT:
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36              R_OK   test for read permission
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38              W_OK   test for write permission
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40              X_OK   test for search/execute permission
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42              F_OK   test for existence of the directory/file.
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RETURN VALUE

45       This routine returns 0 if the operation was successful  or  -1  if  the
46       operation failed. In the latter case, serrno is set appropriately.
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ERRORS

49       ENOENT       The named file/directory does not exist.
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51       EACCES       Search  permission  is  denied  on a component of the path
52                    prefix or specified access to the file itself is denied.
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54       EFAULT       path is a NULL pointer.
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56       ENOTDIR      A component of path prefix is not a directory.
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58       EINVAL       amode is invalid.
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60       ENAMETOOLONG The length of path exceeds CA_MAXPATHLEN or the length  of
61                    a path component exceeds CA_MAXNAMELEN.
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63       SENOSHOST    Host unknown.
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65       SENOSSERV    Service unknown.
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67       SECOMERR     Communication error.
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SEE ALSO

70       Castor_limits(4), rfio_chmod(3), rfio_stat(3)
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AUTHOR

73       LCG Grid Deployment Team
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77LCG          $Date: 2010-04-05 09:51:26 +0200 (Mon, 05 Apr 2010)R$FIO_ACCESS(3)