sysdecode_fcntl_arg(3)

NAME

sysdecode_fcntl_arg, sysdecode_fcntl_arg_p – output description of fcntl argument

LIBRARY

library “libsysdecode”

SYNOPSIS

#include <sysdecode.h>

void

sysdecode_fcntl_arg(FILE *fp, int cmd, uintptr_t arg, int base);

bool

sysdecode_fcntl_arg_p(int cmd);

DESCRIPTION

The sysdecode_fcntl_arg() function outputs a text description of the optional arg argument to fcntl(2) to the stream fp. The type and format of arg are determined by cmd:

Command	arg Type	Output Format

F_SETFD	int

F_SETFL	int

F_GETLK	struct flock *
F_SETLK	struct flock *
F_SETLKW	struct flock *

Others	int

The sysdecode_fcntl_arg_p() function can be used to determine if a fcntl(2) command uses the optional third argument to fcntl(2). The function returns true if cmd accepts a third argument to fcntl(2) and false if it does not.

RETURN VALUES

The sysdecode_fcntl_arg_p function returns true if cmd accepts a third argument to fcntl(2) and false if it does not.