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/*
* Copyright (c) 1999-2016 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
#include <stdio.h>
#include <unistd.h>
#include <pwd.h>
#include <sys/sysctl.h>
#include "passwd.h"
#ifdef INFO_OPEN_DIRECTORY
#include <CoreFoundation/CoreFoundation.h>
#include <OpenDirectory/OpenDirectory.h>
#include <OpenDirectory/OpenDirectoryPriv.h>
extern char* progname;
int master_mode;
static int
cfprintf(FILE* file, const char* format, ...) {
char* cstr;
int result = 0;
va_list args;
va_start(args, format);
CFStringRef formatStr = CFStringCreateWithCStringNoCopy(NULL, format, kCFStringEncodingUTF8, kCFAllocatorNull);
if (formatStr) {
CFStringRef str = CFStringCreateWithFormatAndArguments(NULL, NULL, formatStr, args);
if (str) {
size_t size = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8) + 1;
va_end(args);
cstr = malloc(size);
if (cstr && CFStringGetCString(str, cstr, size, kCFStringEncodingUTF8)) {
result = fprintf(file, "%s", cstr);
free(cstr);
}
CFRelease(str);
}
CFRelease(formatStr);
}
return result;
}
static void
show_error(CFErrorRef error) {
if (error) {
CFStringRef desc = CFErrorCopyDescription(error);
if (desc) {
cfprintf(stderr, "%s: %@", progname, desc);
CFRelease(desc);
}
desc = CFErrorCopyFailureReason(error);
if (desc) cfprintf(stderr, " %@", desc);
desc = CFErrorCopyRecoverySuggestion(error);
if (desc) cfprintf(stderr, " %@", desc);
fprintf(stderr, "\n");
}
}
int
od_passwd(char* uname, char* locn, char* aname)
{
int change_pass_on_self;
CFErrorRef error = NULL;
CFStringRef username = NULL;
CFStringRef location = NULL;
CFStringRef authname = NULL;
ODNodeRef node = NULL;
ODRecordRef rec = NULL;
CFStringRef oldpass = NULL;
CFStringRef newpass = NULL;
if (uname == NULL)
return -1;
/*
* If no explicit authorization name was specified (via -u)
* then default to the target user.
*/
if (!aname) {
aname = strdup(uname);
}
master_mode = (geteuid() == 0);
change_pass_on_self = (strcmp(aname, uname) == 0);
if (locn) {
location = CFStringCreateWithCString(NULL, locn, kCFStringEncodingUTF8);
}
if (aname) {
authname = CFStringCreateWithCString(NULL, aname, kCFStringEncodingUTF8);
}
if (uname) {
username = CFStringCreateWithCString(NULL, uname, kCFStringEncodingUTF8);
if (!username) return -1;
}
/*
* Copy the record from the specified node, or perform a search.
*/
if (location) {
node = ODNodeCreateWithName(NULL, kODSessionDefault, location, &error);
} else {
node = ODNodeCreateWithNodeType(NULL, kODSessionDefault, kODNodeTypeAuthentication, &error);
}
if (node) {
rec = ODNodeCopyRecord(node, kODRecordTypeUsers, username, NULL, &error );
CFRelease(node);
}
if (!rec) {
if (error) {
show_error(error);
} else {
fprintf(stderr, "%s: Unknown user name '%s'.\n", progname, uname);
}
return -1;
}
/*
* Get the actual location.
*/
CFArrayRef values = NULL;
values = ODRecordCopyValues(rec, kODAttributeTypeMetaNodeLocation, &error);
location = (values && CFArrayGetCount(values) > 0) ? CFArrayGetValueAtIndex(values, 0) : location;
printf("Changing password for %s.\n", uname);
bool isSecureToken = false;
if (master_mode) {
CFArrayRef authorityValues = NULL;
authorityValues = ODRecordCopyValues(rec, kODAttributeTypeAuthenticationAuthority, &error);
if (authorityValues != NULL) {
isSecureToken = CFArrayContainsValue(authorityValues, CFRangeMake(0, CFArrayGetCount(authorityValues)), (const void *)CFSTR(";SecureToken;"));
CFRelease(authorityValues);
}
}
/*
* Prompt for password if not super-user, or if changing a remote node, or if changing a record that uses SecureToken.
*/
int needs_auth = (!master_mode || CFStringCompareWithOptions(location, CFSTR("/Local/"), CFRangeMake(0, 7), 0) != kCFCompareEqualTo || isSecureToken);
if (needs_auth) {
char prompt[BUFSIZ];
if (change_pass_on_self) {
strlcpy(prompt, "Old password:", sizeof(prompt));
} else {
snprintf(prompt, sizeof(prompt), "Password for %s:", aname);
}
char *p = getpass( prompt );
if (p) {
oldpass = CFStringCreateWithCString(NULL, p, kCFStringEncodingUTF8);
memset(p, 0, strlen(p));
if (!change_pass_on_self) {
if (!ODRecordSetNodeCredentials(rec, authname, oldpass, &error)) {
show_error(error);
exit(1);
}
CFRelease(oldpass);
oldpass = NULL;
}
}
}
for (;;) {
char *p = getpass("New password:");
if (p && strlen(p) > 0) {
newpass = CFStringCreateWithCString(NULL, p, kCFStringEncodingUTF8);
memset(p, 0, strlen(p));
} else {
printf("Password unchanged.\n");
exit(0);
}
p = getpass("Retype new password:");
if (p) {
CFStringRef verify = CFStringCreateWithCString(NULL, p, kCFStringEncodingUTF8);
if (!verify || !CFEqual(newpass, verify)) {
if (verify) CFRelease(verify);
printf("Mismatch; try again, EOF to quit.\n");
} else {
CFRelease(verify);
break;
}
}
}
ODRecordChangePassword(rec, oldpass, newpass, &error);
if (error) {
show_error(error);
exit(1);
}
if (oldpass) CFRelease(oldpass);
if (newpass) CFRelease(newpass);
#if 0
if ( status != eDSNoErr ) {
switch( status )
{
case eDSAuthPasswordTooShort:
errMsgStr = "The new password is too short.";
break;
case eDSAuthPasswordTooLong:
errMsgStr = "The new password is too long.";
break;
case eDSAuthPasswordNeedsLetter:
errMsgStr = "The new password must contain a letter.";
break;
case eDSAuthPasswordNeedsDigit:
errMsgStr = "The new password must contain a number.";
break;
default:
errMsgStr = "Sorry";
}
fprintf(stderr, "%s\n", errMsgStr);
exit(1);
#endif
return 0;
}
#endif /* INFO_OPEN_DIRECTORY */
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