atnan / smjobblessxpc Goto Github PK

My own app stopped being able to install its helper in OS X 10.10 in the final release, though I believe this was working in earlier beta versions. I came across SMJobBlessXPC as an excellent reduction test case... and found the same problem.

After duly authorizing with an admin password, SMJobBless() results in:
Failed to bless helper. Error: Error Domain=CFErrorDomainLaunchd Code=4 "The operation couldn’t be completed. (CFErrorDomainLaunchd error 4.)"

Error 4 is kSMErrorAuthorizationFailure. The same code was working prior to 10.10 in my testing.

One user reports to me that he noticed the symptoms of the bug in 10.9.5 but not in prior minor releases of 10.9; I can't confirm that at the moment.

your code is modified from apple's SMJobBless, which use XPC as a command-line utility, can you make it work w/ Xcode's XPC Services Template?

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I try to use SMJobBless function to authenticate for my application can do write on /Library/Fonts but not working,

if (![self blessHelperWithLabel:@"com.apple.bsd.SMJobBlessHelper" error:&error]) {
NSLog(@"Something went wrong! %@ / %d", [error domain], (int) [error code]);
} else {
//Access to this point.
/* At this point, the job is available. However, this is a very
* simple sample, and there is no IPC infrastructure set up to
* make it launch-on-demand. You would normally achieve this by
* using XPC (via a MachServices dictionary in your launchd.plist).
*/
NSLog(@"Job is available!");
bool result = false;
result = [[NSFileManager defaultManager] isWritableFileAtPath:@"/Library/Fonts"];
[self->_textField setHidden:false];
}
My application printed "Job is available" but when i check authorities write on /Library/Fonts, result is false
Thanks in advance.

Not sure what this error is, but on mountain lion, I'm getting:

Failed to bless helper. Error: Error Domain=kSMErrorDomainFramework Code=3 "The operation couldn’t be completed. (kSMErrorDomainFramework error 3 - The client and tool did not match requirements.)" UserInfo=0x1001577b0 {NSDescription=The client and tool did not match requirements.}

The demo project works great. But when I try to integrate it into a different project, I consistently get either XPC_ERROR_CONNECTION_INTERRUPTED or sometimes XPC_ERROR_CONNECTION_INVALID errors. Is there something I might have missed? Nothing shows up in the system log for the helper process either—but if I run it from the command line (with sudo), I do see the expected messages in the system log. So the helper is clearly not getting launched, although SMBlessJob does in fact do its thing (as verified by looking in /Library/PrivilegedHelperTools etc.)

Something went wrong! Error Domain=CFErrorDomainLaunchd Code=2 "The operation couldn’t be completed. (CFErrorDomainLaunchd error 2.)"

While running the application i got this error what should i do.
I need to run a sudo command to get total number of files and to get full path, So i need authorization how can i fix this. kindly help me to out.

I've been running SMJobBlessXPC, without the sandbox, but with code-signing and I noticed a pattern. The first time the blessing would work and I would see:

Helper available.
Sending request: Hi there, helper service.
Received response: Hi there, host application!

Quitting SMJobBlessApp and starting it again, without any changes to the code, I would get the dreaded:

Failed to bless helper. Error: Error Domain=CFErrorDomainLaunchd Code=2 “(null)"

Repeating this, running the App, quitting, running it again, the pattern became clear, especially when I used LaunchControl.app to monitor the status of /Library/PrivilegedHelperTools/com.apple.bsd.SMJobBlessHelper:

Status SMJobBlessHelper result SMJobBless()
unloaded YES (will load SMJobBlessHelper)
loaded NO (will unload SMJobBlessHelper)

So, who's to blame? The docs for SMJobBless() state:

If the job is already installed, success is returned.

My tests seem to indicate otherwise, unless there's something I'm missing.

I try to use SMJobBless function to authenticate for my application can do write on /Library/Fonts but not working,

if (![self blessHelperWithLabel:@"com.apple.bsd.SMJobBlessHelper" error:&error]) {
NSLog(@"Something went wrong! %@ / %d", [error domain], (int) [error code]);
} else {
//Access to this point.
/* At this point, the job is available. However, this is a very
* simple sample, and there is no IPC infrastructure set up to
* make it launch-on-demand. You would normally achieve this by
* using XPC (via a MachServices dictionary in your launchd.plist).
*/
NSLog(@"Job is available!");
bool result = false;
result = [[NSFileManager defaultManager] isWritableFileAtPath:@"/Library/Fonts"];
[self->_textField setHidden:false];
}
My application printed "Job is available" but when i check authorities write on /Library/Fonts, result is false
Thanks in advance.