The following code changes the attributes of the standard
input file. The owning user and group ids are changed; the file change
time is set to the current time; and the user read-execute, group
write, and other read-execute permissions are set. For the callable
service, see
fchattr (BPX1FCR, BPX4FCR) — Change the attributes of a file or directory by descriptor. For the data structures,
see
BPXYATT — Map file attributes for chattr and fchattr and
BPXYMODE — Map the mode constants of the file services.
AMODE 64 callers use
BPX4FCR (fchattr) example.
MVC ATTID,=CL4'ATT ' Eye Catcher
MVC ATTVERSION,=AL2(ATT#VER) version
XC S_MODE,S_MODE Clear mode
MVI S_MODE2,S_IRUSR Read-execute/write/read-execute
MVI S_MODE3,S_IXUSR+S_IWGRP+S_IROTH+S_IXOTH
MVC ATTMODE,S_MODE Move mode data to attribute +
structure
MVC ATTUID,=F'7' Specify new UID
MVC ATTGID,=F'77' Specify new GID
OI ATTSETFLAGS1,ATTMODECHG+ATTOWNERCHG +
Flag Mode, UID and GID changes
OI ATTSETFLAGS2,ATTCTIMETOD +
Set change time to current time
SPACE ,
CALL BPX1FCR, Change file attributes +
(=A(STDIN_FILENO), Input: File descriptor +
=A(ATT#LENGTH), Input: BPXYATT length +
ATT, Input/output: BPXYATT +
RETVAL, Return value: 0 or -1 +
RETCODE, Return code +
RSNCODE), Reason code +
VL,MF=(E,PLIST) ----------------------------------