1DPNS_CHOWN(3)               DPNS Library Functions               DPNS_CHOWN(3)
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NAME

6       dpns_chown  -  change  owner  and group of a DPNS directory/file in the
7       name server
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SYNOPSIS

10       #include <sys/types.h>
11       #include "dpns_api.h"
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13       int dpns_chown (const char *path, uid_t new_uid, gid_t new_gid)
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15       int dpns_lchown (const char *path, uid_t new_uid, gid_t new_gid)
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DESCRIPTION

18       dpns_chown sets the owner and the group of a DPNS directory/file in the
19       name  server to the numeric values in owner and group respectively.  If
20       owner or group is specified as -1, dpns_chown()  does  not  change  the
21       corresponding ID of the file.
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23       dpns_lchown  is  identical  to dpns_chown except for symbolic links: it
24       does not follow the link but changes the ownership of the link itself.
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26       path   specifies the logical pathname  relative  to  the  current  DPNS
27              directory or the full DPNS pathname.
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29       To  change  the  owner  ID,  if the group ID does not change and if the
30       caller and the new owner ID belong to that group,  GRP_ADMIN  privilege
31       is  needed,  otherwise the caller must have ADMIN privilege in the Cupv
32       database.  To change the group ID, the effective user ID of the process
33       must  match  the  owner ID of the file and the new group must be in the
34       list of groups the caller belong to or the caller must have ADMIN priv‐
35       ilege in the Cupv database.
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RETURN VALUE

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

42       EPERM        The effective user ID does not match the owner of the file
43                    and  the  caller does not have ADMIN privilege in the Cupv
44                    database.
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46       ENOENT       The named file/directory does not exist or is a null path‐
47                    name.
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49       EACCES       Search  permission  is  denied  on a component of the path
50                    prefix.
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52       EFAULT       path is a NULL pointer.
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54       ENOTDIR      A component of path prefix is not a directory.
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56       EINVAL       new_uid or new_gid is invalid.
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58       ENAMETOOLONG The length of path exceeds CA_MAXPATHLEN or the length  of
59                    a path component exceeds CA_MAXNAMELEN.
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61       SENOSHOST    Host unknown.
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63       SENOSSERV    Service unknown.
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65       SECOMERR     Communication error.
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67       ENSNACT      Name server is not running or is being shutdown.
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SEE ALSO

70       Castor_limits(4), dpns_chdir(3), Cupvlist(1)
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AUTHOR

73       LCG Grid Deployment Team
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77DPNS                     $Date: 2003/09/02 07:15:00 $            DPNS_CHOWN(3)