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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
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<td align="left" colspan="2">
<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/Security/index.html">Security</a> > <a href="../../samplecode/Security/idxAuthorization-date.html">Authorization</a> > <A HREF="javascript:location.replace('index.html');">BetterAuthorizationSample</A> >
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<td><h1><div id="pagehead">BetterAuthorizationSample</div></h1></td>
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<h2>/SampleTool.c</h2>
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<p><strong>View Source Code:</strong>
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<option value="listing1.html">/BetterAuthorizationSampleLib.c</option>
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<option value="listing3.html">/BetterAuthorizationSampleLibInstallTool.c</option>
<option value="listing4.html">/Design and Implementation Rationale.txt</option>
<option value="listing5.html">/Performing Privileged Operations With BetterAuthorizationSampleLib.txt</option>
<option value="listing6.html">/Read Me About BetterAuthorizationSample.txt</option>
<option value="listing7.html">/SampleApp.m</option>
<option value="listing8.html">/SampleCommon.c</option>
<option value="listing9.html">/SampleCommon.h</option>
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<p><strong><a href="BetterAuthorizationSample.zip">Download Sample</a></strong> (“BetterAuthorizationSample.zip”, 237.1K)<BR>
<strong><a href="BetterAuthorizationSample.dmg">Download Sample</a></strong> (“BetterAuthorizationSample.dmg”, 319.3K)</p>
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<!--googleon: index -->
<pre class="sourcecodebox">/*
File: SampleTool.c
Contains: Helper tool side of the example of how to use BetterAuthorizationSampleLib.
Written by: DTS
Copyright: Copyright (c) 2007 Apple Inc. All Rights Reserved.
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple, Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under Apple's
copyrights in this original Apple software (the "Apple Software"), to use,
reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions of
the Apple Software. Neither the name, trademarks, service marks or logos of
Apple, Inc. may be used to endorse or promote products derived from the
Apple Software without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or implied,
are granted by Apple herein, including but not limited to any patent rights that
may be infringed by your derivative works or by other works in which the Apple
Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <netinet/in.h>
#include <stdio.h>
#include <sys/socket.h>
#include <unistd.h>
#include <CoreServices/CoreServices.h>
#include "BetterAuthorizationSampleLib.h"
#include "SampleCommon.h"
/////////////////////////////////////////////////////////////////
#pragma mark ***** Get Version Command
static OSStatus DoGetVersion(
AuthorizationRef auth,
const void * userData,
CFDictionaryRef request,
CFMutableDictionaryRef response,
aslclient asl,
aslmsg aslMsg
)
// Implements the kSampleGetVersionCommand. Returns the version number of
// the helper tool.
{
OSStatus retval = noErr;
CFNumberRef value;
static const int kCurrentVersion = 17; // something very easy to spot
// Pre-conditions
assert(auth != NULL);
// userData may be NULL
assert(request != NULL);
assert(response != NULL);
// asl may be NULL
// aslMsg may be NULL
// Add them to the response.
value = CFNumberCreate(NULL, kCFNumberIntType, &kCurrentVersion);
if (value == NULL) {
retval = coreFoundationUnknownErr;
} else {
CFDictionaryAddValue(response, CFSTR(kSampleGetVersionResponse), value);
}
if (value != NULL) {
CFRelease(value);
}
return retval;
}
/////////////////////////////////////////////////////////////////
#pragma mark ***** Get UIDs Command
static OSStatus DoGetUID(
AuthorizationRef auth,
const void * userData,
CFDictionaryRef request,
CFMutableDictionaryRef response,
aslclient asl,
aslmsg aslMsg
)
// Implements the kSampleGetUIDsCommand. Gets the process's three UIDs and
// adds them to the response dictionary.
{
OSStatus retval = noErr;
int err;
uid_t euid;
uid_t ruid;
CFNumberRef values[2];
long long tmp;
// Pre-conditions
assert(auth != NULL);
// userData may be NULL
assert(request != NULL);
assert(response != NULL);
// asl may be NULL
// aslMsg may be NULL
// Get the UIDs.
euid = geteuid();
ruid = getuid();
err = asl_log(asl, aslMsg, ASL_LEVEL_DEBUG, "euid=%ld, ruid=%ld", (long) euid, (long) ruid);
assert(err == 0);
// Add them to the response.
tmp = euid;
values[0] = CFNumberCreate(NULL, kCFNumberLongLongType, &tmp);
tmp = ruid;
values[1] = CFNumberCreate(NULL, kCFNumberLongLongType, &tmp);
if ( (values[0] == NULL) || (values[1] == NULL) ) {
retval = coreFoundationUnknownErr;
} else {
CFDictionaryAddValue(response, CFSTR(kSampleGetUIDsResponseRUID), values[0]);
CFDictionaryAddValue(response, CFSTR(kSampleGetUIDsResponseEUID), values[1]);
}
if (values[0] != NULL) {
CFRelease(values[0]);
}
if (values[1] != NULL) {
CFRelease(values[1]);
}
return retval;
}
/////////////////////////////////////////////////////////////////
#pragma mark ***** Low-Numbered Ports Command
static OSStatus OpenAndBindDescAndAppendToArray(
uint16_t port, // in host byte order
CFMutableArrayRef descArray,
aslclient asl,
aslmsg aslMsg
)
// A helper routine for DoGetLowNumberedPorts. Opens a TCP port and
// stashes the resulting descriptor in descArray.
{
OSStatus retval;
int err;
int desc;
CFNumberRef descNum;
// Pre-conditions
assert(port != 0);
assert(descArray != NULL);
// asl may be NULL
// aslMsg may be NULL
descNum = NULL;
retval = noErr;
desc = socket(AF_INET, SOCK_STREAM, 0);
if (desc < 0) {
retval = BASErrnoToOSStatus(errno);
}
if (retval == noErr) {
descNum = CFNumberCreate(NULL, kCFNumberIntType, &desc);
if (descNum == NULL) {
retval = coreFoundationUnknownErr;
}
}
if (retval == 0) {
struct sockaddr_in addr;
memset(&addr, 0, sizeof(addr));
addr.sin_len = sizeof(addr);
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
static const int kOne = 1;
err = setsockopt(desc, SOL_SOCKET, SO_REUSEADDR, (void *)&kOne, sizeof(kOne));
if (err < 0) {
retval = BASErrnoToOSStatus(errno);
}
if (retval == noErr) {
err = bind(desc, (struct sockaddr *) &addr, sizeof(addr));
if (err < 0) {
retval = BASErrnoToOSStatus(errno);
}
}
}
if (retval == noErr) {
CFArrayAppendValue(descArray, descNum);
}
if (retval == noErr) {
err = asl_log(asl, aslMsg, ASL_LEVEL_DEBUG, "Opened port %u", (unsigned int) port);
} else {
errno = BASOSStatusToErrno(retval); // so that %m can pick it up
err = asl_log(asl, aslMsg, ASL_LEVEL_ERR, "Failed to open port %u: %m", (unsigned int) port);
}
assert(err == 0);
// Clean up.
if ( (retval != noErr) && (desc != -1) ) {
err = close(desc);
assert(err == 0);
}
if (descNum != NULL) {
CFRelease(descNum);
}
return retval;
}
static OSStatus DoGetLowNumberedPorts(
AuthorizationRef auth,
const void * userData,
CFDictionaryRef request,
CFMutableDictionaryRef response,
aslclient asl,
aslmsg aslMsg
)
// Implements the kSampleLowNumberedPortsCommand. Opens three low-numbered ports
// and adds them to the descriptor array in the response dictionary.
{
OSStatus retval = noErr;
CFMutableArrayRef descArray = NULL;
// Pre-conditions
assert(auth != NULL);
// userData may be NULL
assert(request != NULL);
assert(response != NULL);
// asl may be NULL
// aslMsg may be NULL
descArray = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
if (descArray == NULL) {
retval = coreFoundationUnknownErr;
}
if (retval == noErr) {
retval = OpenAndBindDescAndAppendToArray(130, descArray, asl, aslMsg);
}
if (retval == noErr) {
retval = OpenAndBindDescAndAppendToArray(131, descArray, asl, aslMsg);
}
if (retval == noErr) {
if ( CFDictionaryContainsKey(request, CFSTR(kSampleLowNumberedPortsForceFailure)) ) {
retval = BASErrnoToOSStatus( EADDRINUSE );
} else {
retval = OpenAndBindDescAndAppendToArray(132, descArray, asl, aslMsg);
}
}
if (retval == noErr) {
CFDictionaryAddValue(response, CFSTR(kBASDescriptorArrayKey), descArray);
}
// Clean up.
if (retval != noErr) {
BASCloseDescriptorArray(descArray);
}
if (descArray != NULL) {
CFRelease(descArray);
}
return retval;
}
/////////////////////////////////////////////////////////////////
#pragma mark ***** Tool Infrastructure
/*
IMPORTANT
---------
This array must be exactly parallel to the kSampleCommandSet array
in "SampleCommon.c".
*/
static const BASCommandProc kSampleCommandProcs[] = {
DoGetVersion,
DoGetUID,
DoGetLowNumberedPorts,
NULL
};
int main(int argc, char **argv)
{
// Go directly into BetterAuthorizationSampleLib code.
// IMPORTANT
// BASHelperToolMain doesn't clean up after itself, so once it returns
// we must quit.
return BASHelperToolMain(kSampleCommandSet, kSampleCommandProcs);
}
</pre>
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