MKDIR(2-SVR4)       RISC/os Reference Manual        MKDIR(2-SVR4)



NAME
     mkdir - make a directory

SYNOPSIS
     #include <sys/types.h>
     #include <sys/stat.h>

     int mkdir(const char *path, modet mode);

DESCRIPTION
     mkdir creates a new directory named by the path name pointed
     to by path.  The mode of the new directory is initialized
     from mode [see chmod(2) for values of mode].  The protection
     part of the mode argument is modified by the process's file
     creation mask [see umask(2)].

     The directory's owner ID is set to the process's effective
     user ID.  The directory's group ID is set to the process's
     effective group ID, or if the S_ISGID bit is set in the
     parent directory, then the group ID of the directory is
     inherited from the parent.  The S_ISGID bit of the new
     directory is inherited from the parent directory.

     If path is a symbolic link, it is not followed.

     The newly created directory is empty with the exception of
     entries for itself (.)  and its parent directory (..).

     Upon successful completion, mkdir marks for update the
     st_atime, st_ctime and st_mtime fields of the directory.
     Also, the st_ctime and st_mtime fields of the directory that
     contains the new entry are marked for update.

     mkdir fails and creates no directory if one or more of the
     following are true:

     EACCES              Either a component of the path prefix
                         denies search permission or write per-
                         mission is denied on the parent direc-
                         tory of the directory to be created.

     EEXIST              The named file already exists.

     EFAULT              path points outside the allocated
                         address space of the process.

     EIO                 An I/O error has occurred while access-
                         ing the file system.

     ELOOP               Too many symbolic links were encountered
                         in translating path.




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MKDIR(2-SVR4)       RISC/os Reference Manual        MKDIR(2-SVR4)



     EMLINK              The maximum number of links to the
                         parent directory would be exceeded.

     EMULTIHOP           Components of path require hopping to
                         multiple remote machines and the file
                         system type does not allow it.

     ENAMETOOLONG        The length of the path argument exceeds
                         {PATH_MAX}, or the length of a path com-
                         ponent exceeds {NAME_MAX} while
                         _POSIX_NO_TRUNC is in effect.

     ENOENT              A component of the path prefix does not
                         exist or is a null pathname.

     ENOLINK             path points to a remote machine and the
                         link to that machine is no longer
                         active.

     ENOSPC              No free space is available on the device
                         containing the directory.

     ENOTDIR             A component of the path prefix is not a
                         directory.

     EROFS               The path prefix resides on a read-only
                         file system.

DIAGNOSTICS
     Upon successful completion, a value of 0 is returned.  Oth-
     erwise, a value of -1 is returned, and errno is set to indi-
     cate the error.

SEE ALSO
     chmod(2), mknod(2), umask(2), stat(5).




















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