Application
quits when clicking "Ok" button is NSBeginCriticalAlertSheet in Tiger
OS
I
am in a admin account when testing the issue. Please see ISSUE 1 and ISSUE 2
ISSUE
1:
Ive
created a User Interface to add a print queue using lpadmin. In my User
Interface,
i set my authorization not as admin.
before my lpa
dmin
was called, an authentication dialog asking for user name and password
appears
which is expected since i set my authorization to 0. When i click
"Cancel" in the authentication dialog, i raised my
NSBeginCriticalAlertSheet stating "queue
not added". When clicking "OK" button from my NSBeginCriticalAlertSheet, my
application
quits.
here
is the crash log:
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_INVALID_ADDRESS (0x0001) at
0x00633000
Thread
0 Crashed:
0 com.apple.Foundation 0x92bdfdc0
_NSAddExceptionHandlerForLock + 332
1 com.apple.AppKit 0x937caec4
-[NSViewHierarchyLock lockForReadingWithExceptionHandler:] + 368
2 com.apple.AppKit 0x937d02a0
-[NSView displayIfNeeded] + 80
3 com.apple.AppKit 0x93856f34
-[NSControl mouseDown:] + 184
4 com.apple.AppKit 0x937f8890
-[NSWindow sendEvent:] + 4616
5 com.apple.AppKit 0x937a18d4
-[NSApplication sendEvent:] + 4172
6 com.apple.AppKit 0x93798d10
-[NSApplication run] + 508
7 com.apple.AppKit 0x9388987c
NSApplicationMain + 452
ISSUE
2:
Ive
created a User Interface to add a print queue using lpadmin. In my User
Interface,
i set my authorization not as admin. before my
lpadmin was called, an authentication dialog asking for user name and password
appears
which is expected since i set my authorization to 0. When i click
"Ok" in the authentication dialog without inputting the correct
username and password, i raised my NSBeginCriticalAlertSheet stating
"queue not added". When clicking "OK" button from my
NSBeginCriticalAlertSheet, my application
quits.
here
is the crash log:
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_PROTECTION_FAILURE (0x0002) at
0x004f5000
(null
Unknown
thread crashed with PPC Thread State 64:
srr0: 0x0000000092bbc180 srr1:
0x000000000000d030 vrsave: 0x0000000000000000
cr: 0x42000222 xer: 0x0000000020000004 lr: 0x0000000092bbc180
ctr: 0x00000000900017a0
r0: 0x0000000092bbc180 r1: 0x00000000f01017d0 r2: 0x0000000054485244
r3: 0x0000000000000000
r4: 0x0000000000000000 r5: 0x000000000000000d r6: 0x00000000fffffff7
r7: 0x0000000000000003
r8: 0x0000000063303000 r9: 0x00000000f01015f5 r10: 0x0000000000000001
r11: 0x00000000a00061ec
r12: 0x00000000900017a0 r13: 0x0000000000000000 r14: 0x0000000000000000
r15: 0x0000000000000000
r16: 0x0000000000000000 r17: 0x0000000000000000 r18: 0x0000000000000000
r19: 0x0000000000000000
r20: 0x0000000000000000 r21: 0x0000000000000000 r22: 0x0000000000000000
r23: 0x0000000000000000
r24: 0x0000000000000000 r25: 0x0000000000000002 r26: 0x00000000a37cd830
r27: 0x000000000035e590
r28: 0x00000000003835a0 r29: 0x000000000035c8d0 r30: 0x00000000003a8220
r31: 0x0000000092beb2dc
here
are my snippet codes:
-(BOOL) createQueue : (AuthorizationRef)
authRef
{
//launch authentication dialog.
}
- (void)errorSheet:(NSNotification*)aNotification
{
//raise error dialog
NSBeginCriticalAlertSheet(@"failed", button1, button2, button3,
nil,self,nil, @selector
(sheetDidEnd:returnCode:contextInfo:),nil,@"queue not added");
}
-(void)sheetDidEnd:(NSWindow
*)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo
{
//recover error from errorSheet
[[NSNotificationCenter defaultCenter]
postNotification:[NSNotification
notificationWithName:@"recoverfromfail" object:niluserInfo:
[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber
numberWithBool:(returnCode==NSAlertDefaultReturn)?YES:NO],@"recover",nil]]];
}
+ (BOOL)runAsAdmin
{
OSStatus
status;
AuthorizationRef
authorizationRef;
AuthorizationItem
right = { "com.mycompany.myapplication.command1", 0, NULL, 0 };
AuthorizationRights
rightSet = { 0, &right };/*-----------------------------------
intentionally set to 0 so that i will prompt an authenticaion
dialog---------------------------------------*/
AuthorizationFlags
flags = kAuthorizationFlagExtendRights |
kAuthorizationFlagInteractionAllowed;
/*
Create a new AuthorizationRef object, but pass in NULL for the
AuthorizationRights
set so the AuthorizationRef can be used in future calls. */
status
= AuthorizationCreate(NULL, kAuthorizationEmptyEnvironment,
kAuthorizationFlagDefaults, &authorizationRef);
if
(status == errAuthorizationSuccess)
{
/* Now we can use the AuthorizationRef to
deterimine if the user is
allowed to perform the rights contained in
"rightSet". */
status = AuthorizationCopyRights(authorizationRef,
&rightSet,
kAuthorizationEmptyEnvironment, flags, NULL);
}
}
Static AuthorizationRef
authRef = NULL;
+(AuthorizationRef)authRef
{
returnauthRef;
}
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