opensolaris man page for mkdir

mkdir(2)							   System Calls 							  mkdir(2)

NAME
       mkdir - make a directory

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

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

DESCRIPTION
       The mkdir() function 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 names a symbolic link, mkdir() fails and sets errno to EEXIST.

       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.

RETURN VALUES
       Upon successful completion, 0 is returned. Otherwise, -1 is returned, no directory is created, and  errno is set to indicate the error.

ERRORS
       The mkdir() function will fail if:

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

       EDQUOT	       The  directory  where the new file entry is being placed cannot be extended because the user's quota of disk blocks on that
		       file system has been exhausted; the new directory cannot be created because the user's quota of disk blocks  on	that  file
		       system  has  been  exhausted;  or  the  user's  quota of inodes on the file system where the file is being created has been
		       exhausted.

       EEXIST	       The named file already exists.

       EFAULT	       The path argument points to an illegal address.

       EINVAL	       An attempt was made to create an extended attribute that is a directory.

       EIO	       An I/O error has occurred while accessing the file system.

       EILSEQ	       The path argument includes non-UTF8 characters and the file system accepts only file names where all characters are part of
		       the UTF-8 character codeset.

       ELOOP	       Too many symbolic links were encountered in translating path, or a loop exists in symbolic links encountered during resolu-
		       tion of path

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

       ENAMETOOLONG    The length of the path argument exceeds PATH_MAX, or the length of a path component 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	       The path argument 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.

       The mkdir() function may fail if:

       ENAMETOOLONG    As  a  result  of  encountering	a symbolic link in resolution of the path argument, the length of the substituted pathname
		       string exceeded {PATH_MAX}.

EXAMPLES
       Example 1 Create a directory.

       The following example demonstrates how to create a directory named /home/cnd/mod1, with read, write, and search permissions for	owner  and
       group, and with read and search permissions for others.

	 #include <sys/types.h>
	 #include <sys/stat.h>
	 int status;
	 ...
	 status = mkdir("/home/cnd/mod1",
	      S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Async-Signal-Safe 	   |
       +-----------------------------+-----------------------------+

SEE ALSO
       chmod(2), mknod(2), umask(2), mkdirp(3GEN), stat.h(3HEAD), attributes(5), standards(5)

SunOS 5.11							    18 May 2007 							  mkdir(2)