creat man page on HP-UX

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creat(2)							      creat(2)

       creat - create a new file or rewrite an existing one

       The  system  call  creates a new regular file or prepares to rewrite an
       existing file named by the path name pointed to by path.

       If the file exists, its length is truncated to  0,  and	its  mode  and
       owner  are  unchanged.	Otherwise,  the	 file's owner ID is set to the
       effective user ID of the process.  If the set-group-ID bit of the  par‐
       ent directory is set, the file's group ID is set to the group ID of the
       parent directory.  Otherwise,  the  file's  group  ID  is  set  to  the
       process's  effective  group ID.	The low-order 12 bits of the file mode
       are set to the value of mode modified as follows:

	      ·	 All bits set in the process's file  mode  creation  mask  are
		 cleared (see umask(2)).

	      ·	 The  "save  text  image  after	 execution" bit of the mode is
		 cleared (see chmod(2)).

       If the system call is made in 64 bit mode, the status flag is automati‐
       cally set (see fcntl(5) or open(2)).

       Upon  successful	 completion,  the  file descriptor is returned and the
       file is open for writing (only), even if the mode does not permit writ‐
       ing.   The  file	 offset is set to the beginning of the file.  The file
       descriptor is set to remain open across system  calls  (see  fcntl(2)).
       Each  process has a limit on how many files it can open simultaneously.
       Refer to getrlimit(2) for the open files limit.	This is also discussed
       in  open(2).   A new file can be created with a mode that forbids writ‐

   Access Control Lists - HFS File Systems Only
       On HFS file systems that support access control lists, three  base  ACL
       entries	are  created corresponding to the file access permission bits.
       An existing file's access control list is unchanged by (see  setacl(2),
       chmod(2), and acl(5)).

   Access Control Lists - JFS File Systems Only
       On  JFS	file  systems  that support access control lists, optional ACL
       entries are created corresponding to the parent directory's default ACL
       entries.	  An  existing file's access control list is unchanged by (see
       acl(2), chmod(2), and aclv(5)).

       returns the following values:

	      Successful completion.
		     n is the value of the file descriptor.   It  is  nonnega‐
		     is set to indicate the error.

       If fails, is set to one of the following values:

	      Search permission is denied on a component of the path prefix.

	      The file does not exist and the directory in which the file
			     is to be created does not permit writing.

	      The file exists and write permission is denied.

	      The file exists, enforcement mode file and record locking is set
			     there are outstanding record locks on the file.

	      User's or group's disk quota block or inode limit
			     has been reached for this file system.

	      path	     points outside the allocated address space of the
			     process.  The reliable detection of this error is
			     implementation dependent.

	      The named file is an existing directory.

	      Too many symbolic links were encountered in translating the path

	      More  than  the maximum number of file descriptors are currently

	      The length of the specified path name exceeds
			     bytes, or the length of a component of  the  path
			     name exceeds bytes while is in effect.

	      The system file table is full.

	      The named file does not exist (for example,
			     path  is  null,  or  a component of path does not

	      Not enough space on the file system.

	      A component of the path prefix is not a directory.

	      The named file is a character special or block special file,
			     and the device associated with this special  file
			     does not exist.

	      The named file is a regular file and the size of the file cannot
			     be represented correctly in an object of type

	      The  named file resides or would reside on a read-only file sys‐

	      The file is a pure procedure (shared text) file  that  is	 being

       chmod(2),  close(2),  creat64(2), dup(2), fcntl(2), lockf(2), lseek(2),
       open(2),	 open64(2),   read(2),	 setacl(2),   truncate(2),   umask(2),
       write(2), acl(5), aclv(5), privileges(5).


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