sysdecode_fcntl_arg(3)                        FreeBSD Library Functions Manual

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.

SEE ALSO
     sysdecode(3), sysdecode_fcntl_cmd(3), sysdecode_fcntl_fileflags(3)

FreeBSD 13.1-RELEASE-p6        November 24, 2017       FreeBSD 13.1-RELEASE-p6