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lfc_readdirg(3) [debian man page]

LFC_READDIRG(3) 					       LFC Library Functions						   LFC_READDIRG(3)

NAME
lfc_readdirg - read LFC directory opened by lfc_opendir in the name server SYNOPSIS
#include <sys/types.h> #include "lfc_api.h" struct lfc_direnstatg *lfc_readdirg (lfc_DIR *dirp) DESCRIPTION
lfc_readdirg reads the LFC directory opened by lfc_opendir in the name server. This routine returns a pointer to a structure containing the current directory entry including the GUID associated. struct lfc_direnstatg { u_signed64 fileid; char guid[CA_MAXGUIDLEN+1]; mode_t filemode; int nlink; /* number of files in a directory */ uid_t uid; gid_t gid; u_signed64 filesize; time_t atime; /* last access to file */ time_t mtime; /* last file modification */ time_t ctime; /* last metadata modification */ short fileclass; /* not used */ char status; /* ' ' --> online, 'm' --> migrated */ char csumtype[3]; /* "CS", "AD" or "MD" */ char csumvalue[33]; unsigned short d_reclen; /* length of this entry */ char d_name[1]; /* basename in variable length */ }; lfc_readdirg caches a variable number of such entries, depending on the filename size, to minimize the number of requests to the name server. dirp specifies the pointer value returned by lfc_opendir. RETURN VALUE
This routine returns a pointer to a structure containing the current directory entry if the operation was successful or NULL if the end of the directory was reached or if the operation failed. When the end of the directory is encountered, serrno is not changed. If the operation failed, serrno is set appropriately. As lfc_readdirg returns a null pointer both at the end of the directory and on error, an application wishing to check for error situations should set serrno to 0, then call lfc_readdirg, then check serrno and if it is non-zero, assume an error has occurred. ERRORS
EBADF File descriptor in DIR structure is invalid. EFAULT dirp is a NULL pointer. SECOMERR Communication error. ENSNACT Name server is not running or is being shutdown. SEE ALSO
lfc_closedir(3), lfc_opendirg(3), lfc_rewinddir(3) AUTHOR
LCG Grid Deployment Team LFC
$Date$ LFC_READDIRG(3)

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LFC_STAT(3)						       LFC Library Functions						       LFC_STAT(3)

NAME
lfc_stat - get information about a LFC file or directory in the name server SYNOPSIS
#include <sys/types.h> #include "lfc_api.h" int lfc_lstat (const char *path, struct lfc_filestat *statbuf) int lfc_stat (const char *path, struct lfc_filestat *statbuf) int lfc_statx (const char *path, struct lfc_fileid *file_uniqueid, struct lfc_filestat *statbuf) DESCRIPTION
lfc_stat gets information about a LFC file or directory in the name server. lfc_lstat is identical to lfc_stat except for symbolic links. lfc_lstat retrieves information about the link itself, while lfc_stat gets information about the file/directory referenced by the symbolic link. lfc_statx returns the same information plus the file unique id (name server hostname and file id). The file can be specified by path name or by file_uniqueid. If both are given, file_uniqueid is used. path specifies the logical pathname relative to the current LFC directory or the full LFC pathname. The structure pointed to by statbuf contains the following members: u_signed64 fileid; /* entry unique identifier */ mode_t filemode; /* see below */ int nlink; /* number of files in a directory */ uid_t uid; gid_t gid; u_signed64 filesize; time_t atime; /* last access to file */ time_t mtime; /* last file modification */ time_t ctime; /* last metadata modification */ short fileclass; /* 1--> experiment, 2 --> user */ char status; /* '-' --> online, 'm' --> migrated */ filemode is constructed by OR'ing the bits defined in <sys/stat.h> under Unix or "statbits.h" under Windows/NT: S_IFLNK 0xA000 symbolic link S_IFREG 0x8000 regular file S_IFDIR 0x4000 directory S_ISUID 0004000 set user ID on execution S_ISGID 0002000 set group ID on execution S_ISVTX 0001000 sticky bit S_IRUSR 0000400 read by owner S_IWUSR 0000200 write by owner S_IXUSR 0000100 execute/search by owner S_IRGRP 0000040 read by group S_IWGRP 0000020 write by group S_IXGRP 0000010 execute/search by group S_IROTH 0000004 read by others S_IWOTH 0000002 write by others S_IXOTH 0000001 execute/search by others RETURN VALUE
This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately. ERRORS
ENOENT The named file/directory does not exist or is a null pathname. EACCES Search permission is denied on a component of the path prefix. EFAULT path or statbuf is a NULL pointer. ENOTDIR A component of path prefix is not a directory. ENAMETOOLONG The length of path exceeds CA_MAXPATHLEN or the length of a path component exceeds CA_MAXNAMELEN. SENOSHOST Host unknown. SENOSSERV Service unknown. SECOMERR Communication error. ENSNACT Name server is not running or is being shutdown. SEE ALSO
Castor_limits(4), lfc_chdir(3), lfc_chmod(3), lfc_chown(3), lfc_creatg(3) AUTHOR
LCG Grid Deployment Team LFC
$Date: 2003/09/02 07:08:38 $ LFC_STAT(3)
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