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
others. 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 Technology
-- 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 .