CREAT(2) System Calls CREAT(2)

creat - create a new file or rewrite an existing one

#include <sys/stat.h>
#include <fcntl.h>
int creat(const char *path, mode_t mode);

The function call

creat(path, mode)

is equivalent to:

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

Refer to open(2).

Refer to open(2).

Example 1 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);

The creat() function has a transitional interface for 64-bit file offsets. See lf64(5).

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

Interface Stability Standard
MT-Level Async-Signal-Safe

open(2), attributes(5), largefile(5), lf64(5), standards(5)

March 25, 2002 OmniOS