Open Radar

 
Ralph Boehme09-Jan-2014 11:03 AM

Summary:
According to
<https://developer.apple.com/library/mac/documentation/Networking/Reference/AFP_Reference/Reference/reference.html#//apple_ref/doc/constant_group/Extended_Attributes_Bitmap>

an AFP server must return an error code for a FPSetExtAttr request with set kXAttrReplace flag in case the attribute doesn't exist.
Apparently AppleFileServer on 10.9.1 returns no error and simply discards the request.

Steps to Reproduce:
inti:~ ralph$ cat myxattr.c 
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/xattr.h>

int main(int argc, char **argv)
{
    if (argc != 4) {
        printf("usage: %s file ea value\n", argv[0]);
        return 1;
    }
    if (setxattr(argv[1], argv[2], argv[3], strlen(argv[3]), 0, XATTR_REPLACE) != 0) {
        perror("setxattr");
        return 2;
    }
    return 0;
}
inti:~ ralph$ gcc -Wall -o myxattr myxattr.c
inti:~ ralph$ pwd
/Users/ralph
inti:~ ralph$ rm -f file && touch file
inti:~ ralph$ ./myxattr file test bla
setxattr: Attribute not found
inti:~ ralph$ xattr -l file 
inti:~ ralph$ 

inti:~ ralph$ mount | grep afp
//sysadmin@10.10.10.30/sysadmin on /Volumes/sysadmin (afpfs, nodev, nosuid, mounted by ralph)
inti:~ ralph$ ssh sysadmin@10.10.10.30
Last login: Thu Jan  9 10:44:20 2014 from 10.10.10.157
mac-mini:~ sysadmin$ sw_vers 
ProductName:	Mac OS X
ProductVersion:	10.9.1
BuildVersion:	13B42
mac-mini:~ sysadmin$ logout
Connection to 10.10.10.30 closed.
inti:~ ralph$ rm -f /Volumes/sysadmin/file && touch /Volumes/sysadmin/file
inti:~ ralph$ ./myxattr /Volumes/sysadmin/file test bla
inti:~ ralph$ xattr -l /Volumes/sysadmin/file
inti:~ ralph$ 


Expected Results:
Return an AFP error code like kFPObjectNotFound.

Actual Results:
kFPNoErr

Version:
10.9.1

Notes:


Configuration:
10.9.1 AFP client with 10.9.1 AFP server.

Attachments:
'FPSetExtAttr-replace.pcapng' and 'myxattr.c' were successfully uploaded.