CREAT(3P)                                                    POSIX Programmer's Manual                                                   CREAT(3P)

PROLOG

       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME

       creat - create a new file or rewrite an existing one

SYNOPSIS

       #include <sys/stat.h>
       #include <fcntl.h>

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

DESCRIPTION

       The function call:

              creat(path, mode)

       shall be equivalent to:

              open(path, O_WRONLY|O_CREAT|O_TRUNC, mode)

RETURN VALUE

       Refer to open().

ERRORS

       Refer to open().

       The following sections are informative.

EXAMPLES

   Creating a File
       The following example creates the file /tmp/file with read and write permissions for the file owner and read permission for group and  oth-
       ers. The resulting file descriptor is assigned to the fd variable.

              #include <fcntl.h>
              ...
              int fd;
              mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
              char *filename = "/tmp/file";
              ...
              fd = creat(filename, mode);
              ...

APPLICATION USAGE

       None.

RATIONALE

       The  creat()  function  is  redundant. Its services are also provided by the open() function. It has been included primarily for historical
       purposes since many existing applications depend on it. It is best considered a part of the C binding rather than a function that should be
       provided in other languages.

FUTURE DIRECTIONS

       None.

SEE ALSO

       open(), the Base Definitions volume of IEEE Std 1003.1-2001, <fcntl.h>, <sys/stat.h>, <sys/types.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical  and  Electronics  Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
       and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can  be  obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group                                                    2003                                                              CREAT(3P)