NAME

sysdecode_fcntl_arg, sysdecode_fcntl_arg_p —

output description of fcntl argument

LIBRARY

System Argument Decoding Library (libsysdecode, -lsysdecode)

SYNOPSIS

#include <sys/types.h>
#include <stdbool.h>
#include <stdio.h>
#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`	“FD_CLOEXEC” or the value of `arg` in the indicated `base` (one of 8, 10, or 16).
`F_SETFL`	`int`	File flags as output by sysdecode_fcntl_fileflags(3) with any unknown or remaining bits output in hexadecimal.
`F_GETLK`	`struct flock *`
`F_SETLK`	`struct flock *`
`F_SETLKW`	`struct flock *`	The value of `arg` using the “%p” conversion specification.
Others	`int`	The value of `arg` in the indicated `base` (one of 8, 10, or 16).

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.

NAME

LIBRARY

SYNOPSIS

DESCRIPTION

RETURN VALUES

SEE ALSO