DCMD_ALL_GETFLAGS

Synopsis:

#include <sys/dcmd_all.h>

#define DCMD_ALL_GETFLAGS    __DIOF(_DCMD_ALL, 1, int)

Arguments to devctl():

Argument	Value
`filedes`	A file descriptor that you obtained by opening the device.
`dcmd`	DCMD_ALL_GETFLAGS
`dev_data_ptr`	A pointer to an int where the device can store the flags.
`n_bytes`	`sizeof(int)`
`dev_info_ptr`	NULL

Description:

This command gets O_* file status flags and file access modes, described in <fcntl.h>. Clients usually use the fcntl() cover function to generate this request:

fcntl(fd, F_GETFL);

Input:

None.

Output:

A bitwise OR of zero or more of the following status flags (identified by the QNX Neutrino O_SETFLAG mask):

O_APPEND
O_DSYNC
O_LARGEFILE
O_NONBLOCK
O_RSYNC
O_SYNC

and the following file access modes:

O_RDONLY
O_RDWR
O_WRONLY

For more information, see open() in the QNX Neutrino C Library Reference.

Example:

int flags;

if(devctl(fd, DCMD_ALL_GETFLAGS, &flags, sizeof flags, NULL) != EOK)
{
   /* Error */
}
return flags;