New upstream version 2.4.0upstream/2.4.0

1 files changed, 595 insertions, 462 deletions

diff --git a/contrib/keychain-mcd/cert_data.c b/contrib/keychain-mcd/cert_data.c
index a04bf79..b84f3fc 100644
--- a/contrib/keychain-mcd/cert_data.c
+++ b/contrib/keychain-mcd/cert_data.c
@@ -51,684 +51,817 @@ CFStringRef kStringSpace = CFSTR(" "),
 
 typedef struct _CertName
 {
-  CFArrayRef countryName, organization, organizationalUnit, commonName, description, emailAddress,
-             stateName, localityName;
+    CFArrayRef countryName, organization, organizationalUnit, commonName, description, emailAddress,
+               stateName, localityName;
 } CertName, *CertNameRef;
 
 typedef struct _DescData
 {
-  CFStringRef name, value;
+    CFStringRef name, value;
 } DescData, *DescDataRef;
 
 void destroyDescData(DescDataRef pData);
 
-CertNameRef createCertName()
+CertNameRef
+createCertName()
 {
-  CertNameRef pCertName = (CertNameRef)malloc(sizeof(CertName));
-  pCertName->countryName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
-  pCertName->organization =  CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
-  pCertName->organizationalUnit = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
-  pCertName->commonName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
-  pCertName->description = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
-  pCertName->emailAddress = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
-  pCertName->stateName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
-  pCertName->localityName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
-  return pCertName;
+    CertNameRef pCertName = (CertNameRef)malloc(sizeof(CertName));
+    pCertName->countryName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+    pCertName->organization =  CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+    pCertName->organizationalUnit = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+    pCertName->commonName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+    pCertName->description = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+    pCertName->emailAddress = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+    pCertName->stateName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+    pCertName->localityName = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
+    return pCertName;
 }
 
-void destroyCertName(CertNameRef pCertName)
+void
+destroyCertName(CertNameRef pCertName)
 {
-  if (!pCertName)
-    return;
-
-  CFRelease(pCertName->countryName);
-  CFRelease(pCertName->organization);
-  CFRelease(pCertName->organizationalUnit);
-  CFRelease(pCertName->commonName);
-  CFRelease(pCertName->description);
-  CFRelease(pCertName->emailAddress);
-  CFRelease(pCertName->stateName);
-  CFRelease(pCertName->localityName);
-  free(pCertName);
+    if (!pCertName)
+    {
+        return;
+    }
+
+    CFRelease(pCertName->countryName);
+    CFRelease(pCertName->organization);
+    CFRelease(pCertName->organizationalUnit);
+    CFRelease(pCertName->commonName);
+    CFRelease(pCertName->description);
+    CFRelease(pCertName->emailAddress);
+    CFRelease(pCertName->stateName);
+    CFRelease(pCertName->localityName);
+    free(pCertName);
 }
 
-bool CFStringRefCmpCString(CFStringRef cfstr, const char *str)
+bool
+CFStringRefCmpCString(CFStringRef cfstr, const char *str)
 {
-  CFStringRef tmp = CFStringCreateWithCStringNoCopy(NULL, str, kCFStringEncodingUTF8, kCFAllocatorNull);
-  CFComparisonResult cresult = CFStringCompare(cfstr, tmp, 0);
-  bool result = cresult == kCFCompareEqualTo;
-  CFRelease(tmp);
-  return result;
+    CFStringRef tmp = CFStringCreateWithCStringNoCopy(NULL, str, kCFStringEncodingUTF8, kCFAllocatorNull);
+    CFComparisonResult cresult = CFStringCompare(cfstr, tmp, 0);
+    bool result = cresult == kCFCompareEqualTo;
+    CFRelease(tmp);
+    return result;
 }
 
-CFDateRef GetDateFieldFromCertificate(SecCertificateRef certificate, CFTypeRef oid)
+CFDateRef
+GetDateFieldFromCertificate(SecCertificateRef certificate, CFTypeRef oid)
 {
-  const void *keys[] = { oid };
-  CFDictionaryRef dict = NULL;
-  CFErrorRef error;
-  CFDateRef date = NULL;
-
-  CFArrayRef keySelection = CFArrayCreate(NULL, keys , sizeof(keys)/sizeof(keys[0]), &kCFTypeArrayCallBacks);
-  dict = SecCertificateCopyValues(certificate, keySelection, &error);
-  if (dict == NULL)
+    const void *keys[] = { oid };
+    CFDictionaryRef dict = NULL;
+    CFErrorRef error;
+    CFDateRef date = NULL;
+
+    CFArrayRef keySelection = CFArrayCreate(NULL, keys, sizeof(keys)/sizeof(keys[0]), &kCFTypeArrayCallBacks);
+    dict = SecCertificateCopyValues(certificate, keySelection, &error);
+    if (dict == NULL)
+    {
+        printErrorMsg("GetDateFieldFromCertificate: SecCertificateCopyValues", error);
+        goto release_ks;
+    }
+    CFDictionaryRef vals = dict ? CFDictionaryGetValue(dict, oid) : NULL;
+    CFNumberRef vals2 = vals ? CFDictionaryGetValue(vals, kSecPropertyKeyValue) : NULL;
+    if (vals2 == NULL)
     {
-      printErrorMsg("GetDateFieldFromCertificate: SecCertificateCopyValues", error);
-      goto release_ks;
+        goto release_dict;
     }
-  CFDictionaryRef vals = dict ? CFDictionaryGetValue(dict, oid) : NULL;
-  CFNumberRef vals2 = vals ? CFDictionaryGetValue(vals, kSecPropertyKeyValue) : NULL;
-  if (vals2 == NULL)
-    goto release_dict;
 
-  CFAbsoluteTime validityNotBefore;
-  if (CFNumberGetValue(vals2, kCFNumberDoubleType, &validityNotBefore))
-    date = CFDateCreate(kCFAllocatorDefault,validityNotBefore);
+    CFAbsoluteTime validityNotBefore;
+    if (CFNumberGetValue(vals2, kCFNumberDoubleType, &validityNotBefore))
+    {
+        date = CFDateCreate(kCFAllocatorDefault,validityNotBefore);
+    }
 
 release_dict:
-  CFRelease(dict);
+    CFRelease(dict);
 release_ks:
-  CFRelease(keySelection);
-  return date;
+    CFRelease(keySelection);
+    return date;
 }
 
-CFArrayRef GetFieldsFromCertificate(SecCertificateRef certificate, CFTypeRef oid)
+CFArrayRef
+GetFieldsFromCertificate(SecCertificateRef certificate, CFTypeRef oid)
 {
-  CFMutableArrayRef fields = CFArrayCreateMutable(NULL, 0, NULL);
-  CertNameRef pCertName = createCertName();
-  const void* keys[] = { oid, };
-  CFDictionaryRef dict;
-  CFErrorRef error;
-
-  CFArrayRef keySelection = CFArrayCreate(NULL, keys , 1, NULL);
-
-  dict = SecCertificateCopyValues(certificate, keySelection, &error);
-  if (dict == NULL) {
-      printErrorMsg("GetFieldsFromCertificate: SecCertificateCopyValues", error);
-      CFRelease(keySelection);
-      CFRelease(fields);
-      destroyCertName(pCertName);
-      return NULL;
-  }
-  CFDictionaryRef vals = CFDictionaryGetValue(dict, oid);
-  CFArrayRef vals2 = vals ? CFDictionaryGetValue(vals, kSecPropertyKeyValue) : NULL;
-  if (vals2)
-    {
-      for(int i = 0; i < CFArrayGetCount(vals2); i++) {
-        CFDictionaryRef subDict = CFArrayGetValueAtIndex(vals2, i);
-        CFStringRef label = CFDictionaryGetValue(subDict, kSecPropertyKeyLabel);
-        CFStringRef value = CFDictionaryGetValue(subDict, kSecPropertyKeyValue);
-
-        if (CFStringCompare(label, kSecOIDEmailAddress, 0) == kCFCompareEqualTo)
-          CFArrayAppendValue((CFMutableArrayRef)pCertName->emailAddress, value);
-        else if (CFStringCompare(label, kSecOIDCountryName, 0) == kCFCompareEqualTo)
-          CFArrayAppendValue((CFMutableArrayRef)pCertName->countryName, value);
-        else if (CFStringCompare(label, kSecOIDOrganizationName, 0) == kCFCompareEqualTo)
-          CFArrayAppendValue((CFMutableArrayRef)pCertName->organization, value);
-        else if (CFStringCompare(label, kSecOIDOrganizationalUnitName, 0) == kCFCompareEqualTo)
-          CFArrayAppendValue((CFMutableArrayRef)pCertName->organizationalUnit, value);
-        else if (CFStringCompare(label, kSecOIDCommonName, 0) == kCFCompareEqualTo)
-          CFArrayAppendValue((CFMutableArrayRef)pCertName->commonName, value);
-        else if (CFStringCompare(label, kSecOIDDescription, 0) == kCFCompareEqualTo)
-          CFArrayAppendValue((CFMutableArrayRef)pCertName->description, value);
-        else if (CFStringCompare(label, kSecOIDStateProvinceName, 0) == kCFCompareEqualTo)
-          CFArrayAppendValue((CFMutableArrayRef)pCertName->stateName, value);
-        else if (CFStringCompare(label, kSecOIDLocalityName, 0) == kCFCompareEqualTo)
-          CFArrayAppendValue((CFMutableArrayRef)pCertName->localityName, value);
-      }
-      CFArrayAppendValue(fields, pCertName);
-    }
-
-  CFRelease(dict);
-  CFRelease(keySelection);
-  return fields;
+    CFMutableArrayRef fields = CFArrayCreateMutable(NULL, 0, NULL);
+    CertNameRef pCertName = createCertName();
+    const void *keys[] = { oid, };
+    CFDictionaryRef dict;
+    CFErrorRef error;
+
+    CFArrayRef keySelection = CFArrayCreate(NULL, keys, 1, NULL);
+
+    dict = SecCertificateCopyValues(certificate, keySelection, &error);
+    if (dict == NULL)
+    {
+        printErrorMsg("GetFieldsFromCertificate: SecCertificateCopyValues", error);
+        CFRelease(keySelection);
+        CFRelease(fields);
+        destroyCertName(pCertName);
+        return NULL;
+    }
+    CFDictionaryRef vals = CFDictionaryGetValue(dict, oid);
+    CFArrayRef vals2 = vals ? CFDictionaryGetValue(vals, kSecPropertyKeyValue) : NULL;
+    if (vals2)
+    {
+        for (int i = 0; i < CFArrayGetCount(vals2); i++) {
+            CFDictionaryRef subDict = CFArrayGetValueAtIndex(vals2, i);
+            CFStringRef label = CFDictionaryGetValue(subDict, kSecPropertyKeyLabel);
+            CFStringRef value = CFDictionaryGetValue(subDict, kSecPropertyKeyValue);
+
+            if (CFStringCompare(label, kSecOIDEmailAddress, 0) == kCFCompareEqualTo)
+            {
+                CFArrayAppendValue((CFMutableArrayRef)pCertName->emailAddress, value);
+            }
+            else if (CFStringCompare(label, kSecOIDCountryName, 0) == kCFCompareEqualTo)
+            {
+                CFArrayAppendValue((CFMutableArrayRef)pCertName->countryName, value);
+            }
+            else if (CFStringCompare(label, kSecOIDOrganizationName, 0) == kCFCompareEqualTo)
+            {
+                CFArrayAppendValue((CFMutableArrayRef)pCertName->organization, value);
+            }
+            else if (CFStringCompare(label, kSecOIDOrganizationalUnitName, 0) == kCFCompareEqualTo)
+            {
+                CFArrayAppendValue((CFMutableArrayRef)pCertName->organizationalUnit, value);
+            }
+            else if (CFStringCompare(label, kSecOIDCommonName, 0) == kCFCompareEqualTo)
+            {
+                CFArrayAppendValue((CFMutableArrayRef)pCertName->commonName, value);
+            }
+            else if (CFStringCompare(label, kSecOIDDescription, 0) == kCFCompareEqualTo)
+            {
+                CFArrayAppendValue((CFMutableArrayRef)pCertName->description, value);
+            }
+            else if (CFStringCompare(label, kSecOIDStateProvinceName, 0) == kCFCompareEqualTo)
+            {
+                CFArrayAppendValue((CFMutableArrayRef)pCertName->stateName, value);
+            }
+            else if (CFStringCompare(label, kSecOIDLocalityName, 0) == kCFCompareEqualTo)
+            {
+                CFArrayAppendValue((CFMutableArrayRef)pCertName->localityName, value);
+            }
+        }
+        CFArrayAppendValue(fields, pCertName);
+    }
+
+    CFRelease(dict);
+    CFRelease(keySelection);
+    return fields;
 }
 
-CertDataRef createCertDataFromCertificate(SecCertificateRef certificate)
+CertDataRef
+createCertDataFromCertificate(SecCertificateRef certificate)
 {
-  CertDataRef pCertData = (CertDataRef)malloc(sizeof(CertData));
-  pCertData->subject = GetFieldsFromCertificate(certificate, kSecOIDX509V1SubjectName);
-  pCertData->issuer = GetFieldsFromCertificate(certificate, kSecOIDX509V1IssuerName);
+    CertDataRef pCertData = (CertDataRef)malloc(sizeof(CertData));
+    pCertData->subject = GetFieldsFromCertificate(certificate, kSecOIDX509V1SubjectName);
+    pCertData->issuer = GetFieldsFromCertificate(certificate, kSecOIDX509V1IssuerName);
 
-  CFDataRef data = SecCertificateCopyData(certificate);
-  if (data == NULL)
+    CFDataRef data = SecCertificateCopyData(certificate);
+    if (data == NULL)
     {
-      warnx("SecCertificateCopyData() returned NULL");
-      destroyCertData(pCertData);
-      return NULL;
+        warnx("SecCertificateCopyData() returned NULL");
+        destroyCertData(pCertData);
+        return NULL;
     }
 
-  unsigned char sha1[CC_SHA1_DIGEST_LENGTH];
-  CC_SHA1(CFDataGetBytePtr(data), CFDataGetLength(data), sha1);
-  pCertData->sha1 = createHexString(sha1, CC_SHA1_DIGEST_LENGTH);
+    unsigned char sha1[CC_SHA1_DIGEST_LENGTH];
+    CC_SHA1(CFDataGetBytePtr(data), CFDataGetLength(data), sha1);
+    pCertData->sha1 = createHexString(sha1, CC_SHA1_DIGEST_LENGTH);
 
-  unsigned char md5[CC_MD5_DIGEST_LENGTH];
-  CC_MD5(CFDataGetBytePtr(data), CFDataGetLength(data), md5);
-  pCertData->md5 = createHexString((unsigned char*)md5, CC_MD5_DIGEST_LENGTH);
+    unsigned char md5[CC_MD5_DIGEST_LENGTH];
+    CC_MD5(CFDataGetBytePtr(data), CFDataGetLength(data), md5);
+    pCertData->md5 = createHexString((unsigned char *)md5, CC_MD5_DIGEST_LENGTH);
 
-  CFDataRef serial = SecCertificateCopySerialNumber(certificate, NULL);
-  pCertData->serial = createHexString((unsigned char *)CFDataGetBytePtr(serial), CFDataGetLength(serial));
-  CFRelease(serial);
+    CFDataRef serial = SecCertificateCopySerialNumber(certificate, NULL);
+    pCertData->serial = createHexString((unsigned char *)CFDataGetBytePtr(serial), CFDataGetLength(serial));
+    CFRelease(serial);
 
-  return pCertData;
+    return pCertData;
 }
 
-CFStringRef stringFromRange(const char *cstring, CFRange range)
+CFStringRef
+stringFromRange(const char *cstring, CFRange range)
 {
-  CFStringRef str = CFStringCreateWithBytes (NULL, (uint8*)&cstring[range.location], range.length, kCFStringEncodingUTF8, false);
-  CFMutableStringRef mutableStr = CFStringCreateMutableCopy(NULL, 0, str);
-  CFStringTrimWhitespace(mutableStr);
-  CFRelease(str);
-  return mutableStr;
+    CFStringRef str = CFStringCreateWithBytes(NULL, (uint8 *)&cstring[range.location], range.length, kCFStringEncodingUTF8, false);
+    CFMutableStringRef mutableStr = CFStringCreateMutableCopy(NULL, 0, str);
+    CFStringTrimWhitespace(mutableStr);
+    CFRelease(str);
+    return mutableStr;
 }
 
-DescDataRef createDescData(const char *description, CFRange nameRange, CFRange valueRange)
+DescDataRef
+createDescData(const char *description, CFRange nameRange, CFRange valueRange)
 {
-  DescDataRef pRetVal = (DescDataRef)malloc(sizeof(DescData));
+    DescDataRef pRetVal = (DescDataRef)malloc(sizeof(DescData));
 
-  memset(pRetVal, 0, sizeof(DescData));
+    memset(pRetVal, 0, sizeof(DescData));
 
-  if (nameRange.length > 0)
-    pRetVal->name = stringFromRange(description, nameRange);
+    if (nameRange.length > 0)
+    {
+        pRetVal->name = stringFromRange(description, nameRange);
+    }
 
-  if (valueRange.length > 0)
-    pRetVal->value = stringFromRange(description, valueRange);
+    if (valueRange.length > 0)
+    {
+        pRetVal->value = stringFromRange(description, valueRange);
+    }
 
 #if 0
-  fprintf(stderr, "name = '%s', value = '%s'\n",
-      CFStringGetCStringPtr(pRetVal->name, kCFStringEncodingUTF8),
-      CFStringGetCStringPtr(pRetVal->value, kCFStringEncodingUTF8));
+    fprintf(stderr, "name = '%s', value = '%s'\n",
+            CFStringGetCStringPtr(pRetVal->name, kCFStringEncodingUTF8),
+            CFStringGetCStringPtr(pRetVal->value, kCFStringEncodingUTF8));
 #endif
-  return pRetVal;
+    return pRetVal;
 }
 
-void destroyDescData(DescDataRef pData)
+void
+destroyDescData(DescDataRef pData)
 {
-  if (pData->name)
-    CFRelease(pData->name);
+    if (pData->name)
+    {
+        CFRelease(pData->name);
+    }
 
-  if (pData->value)
-    CFRelease(pData->value);
+    if (pData->value)
+    {
+        CFRelease(pData->value);
+    }
 
-  free(pData);
+    free(pData);
 }
 
-CFArrayRef createDescDataPairs(const char *description)
+CFArrayRef
+createDescDataPairs(const char *description)
 {
-  int numChars = strlen(description);
-  CFRange nameRange, valueRange;
-  DescDataRef pData;
-  CFMutableArrayRef retVal = CFArrayCreateMutable(NULL, 0, NULL);
+    int numChars = strlen(description);
+    CFRange nameRange, valueRange;
+    DescDataRef pData;
+    CFMutableArrayRef retVal = CFArrayCreateMutable(NULL, 0, NULL);
 
-  int i = 0;
+    int i = 0;
 
-  nameRange = CFRangeMake(0, 0);
-  valueRange = CFRangeMake(0, 0);
-  bool bInValue = false;
+    nameRange = CFRangeMake(0, 0);
+    valueRange = CFRangeMake(0, 0);
+    bool bInValue = false;
 
-  while(i < numChars)
+    while (i < numChars)
     {
-      if (!bInValue && (description[i] != ':'))
+        if (!bInValue && (description[i] != ':'))
         {
-          nameRange.length++;
+            nameRange.length++;
         }
-      else if (bInValue && (description[i] != ':'))
+        else if (bInValue && (description[i] != ':'))
         {
-          valueRange.length++;
+            valueRange.length++;
         }
-      else if(!bInValue)
+        else if (!bInValue)
         {
-          bInValue = true;
-          valueRange.location = i + 1;
-          valueRange.length = 0;
+            bInValue = true;
+            valueRange.location = i + 1;
+            valueRange.length = 0;
         }
-      else //(bInValue)
+        else /*(bInValue) */
         {
-          bInValue = false;
-          while(description[i] != ' ')
+            bInValue = false;
+            while (description[i] != ' ')
             {
-              valueRange.length--;
-              i--;
+                valueRange.length--;
+                i--;
             }
 
-          pData = createDescData(description, nameRange, valueRange);
-          CFArrayAppendValue(retVal, pData);
+            pData = createDescData(description, nameRange, valueRange);
+            CFArrayAppendValue(retVal, pData);
 
-          nameRange.location = i + 1;
-          nameRange.length = 0;
+            nameRange.location = i + 1;
+            nameRange.length = 0;
         }
 
-      i++;
+        i++;
     }
 
-  pData = createDescData(description, nameRange, valueRange);
-  CFArrayAppendValue(retVal, pData);
-  return retVal;
+    pData = createDescData(description, nameRange, valueRange);
+    CFArrayAppendValue(retVal, pData);
+    return retVal;
 }
 
-void arrayDestroyDescData(const void *val, void *context)
+void
+arrayDestroyDescData(const void *val, void *context)
 {
-  DescDataRef pData = (DescDataRef) val;
-  destroyDescData(pData);
+    DescDataRef pData = (DescDataRef) val;
+    destroyDescData(pData);
 }
 
 
-int parseNameComponent(CFStringRef dn, CFStringRef *pName, CFStringRef *pValue)
+int
+parseNameComponent(CFStringRef dn, CFStringRef *pName, CFStringRef *pValue)
 {
-  CFArrayRef nameStrings = CFStringCreateArrayBySeparatingStrings(NULL, dn, kCertNameEquals);
+    CFArrayRef nameStrings = CFStringCreateArrayBySeparatingStrings(NULL, dn, kCertNameEquals);
 
-  *pName = *pValue = NULL;
+    *pName = *pValue = NULL;
 
-  if (CFArrayGetCount(nameStrings) != 2)
-    return 0;
+    if (CFArrayGetCount(nameStrings) != 2)
+    {
+        return 0;
+    }
 
-  CFMutableStringRef str;
+    CFMutableStringRef str;
 
-  str = CFStringCreateMutableCopy(NULL, 0, CFArrayGetValueAtIndex(nameStrings, 0));
-  CFStringTrimWhitespace(str);
-  *pName = str;
+    str = CFStringCreateMutableCopy(NULL, 0, CFArrayGetValueAtIndex(nameStrings, 0));
+    CFStringTrimWhitespace(str);
+    *pName = str;
 
-  str = CFStringCreateMutableCopy(NULL, 0, CFArrayGetValueAtIndex(nameStrings, 1));
-  CFStringTrimWhitespace(str);
-  *pValue = str;
+    str = CFStringCreateMutableCopy(NULL, 0, CFArrayGetValueAtIndex(nameStrings, 1));
+    CFStringTrimWhitespace(str);
+    *pValue = str;
 
-  CFRelease(nameStrings);
-  return 1;
+    CFRelease(nameStrings);
+    return 1;
 }
 
-int tryAppendSingleCertField(CertNameRef pCertName, CFArrayRef where, CFStringRef key,
-    CFStringRef name, CFStringRef value)
+int
+tryAppendSingleCertField(CertNameRef pCertName, CFArrayRef where, CFStringRef key,
+                         CFStringRef name, CFStringRef value)
 {
-  if (CFStringCompareWithOptions(name, key, CFRangeMake(0, CFStringGetLength(name)), kCFCompareCaseInsensitive)
-      == kCFCompareEqualTo) {
-    CFArrayAppendValue((CFMutableArrayRef)where, value);
-    return 1;
-  }
-  return 0;
+    if (CFStringCompareWithOptions(name, key, CFRangeMake(0, CFStringGetLength(name)), kCFCompareCaseInsensitive)
+        == kCFCompareEqualTo)
+    {
+        CFArrayAppendValue((CFMutableArrayRef)where, value);
+        return 1;
+    }
+    return 0;
 }
 
-int appendCertField(CertNameRef pCert, CFStringRef name, CFStringRef value)
+int
+appendCertField(CertNameRef pCert, CFStringRef name, CFStringRef value)
 {
-  struct {
-    CFArrayRef field;
-    CFStringRef key;
-  } fields[] = {
-    { pCert->organization, kCertNameOrganization},
-    { pCert->organizationalUnit, kCertNameOrganizationalUnit},
-    { pCert->countryName, kCertNameCountry},
-    { pCert->localityName, kCertNameLocality},
-    { pCert->stateName, kCertNameState},
-    { pCert->commonName, kCertNameCommonName},
-    { pCert->emailAddress, kCertNameEmail},
-  };
-  int i;
-  int ret = 0;
-
-  for (i=0; i<sizeof(fields)/sizeof(fields[0]); i++)
-    ret += tryAppendSingleCertField(pCert, fields[i].field, fields[i].key, name, value);
-  return ret;
+    struct {
+        CFArrayRef field;
+        CFStringRef key;
+    } fields[] = {
+        { pCert->organization, kCertNameOrganization},
+        { pCert->organizationalUnit, kCertNameOrganizationalUnit},
+        { pCert->countryName, kCertNameCountry},
+        { pCert->localityName, kCertNameLocality},
+        { pCert->stateName, kCertNameState},
+        { pCert->commonName, kCertNameCommonName},
+        { pCert->emailAddress, kCertNameEmail},
+    };
+    int i;
+    int ret = 0;
+
+    for (i = 0; i<sizeof(fields)/sizeof(fields[0]); i++)
+        ret += tryAppendSingleCertField(pCert, fields[i].field, fields[i].key, name, value);
+    return ret;
 }
 
-int parseCertName(CFStringRef nameDesc, CFMutableArrayRef names)
+int
+parseCertName(CFStringRef nameDesc, CFMutableArrayRef names)
 {
-  CFArrayRef nameStrings = CFStringCreateArrayBySeparatingStrings(NULL, nameDesc, kCertNameFwdSlash);
-  int count = CFArrayGetCount(nameStrings);
-  int i;
-  int ret = 1;
+    CFArrayRef nameStrings = CFStringCreateArrayBySeparatingStrings(NULL, nameDesc, kCertNameFwdSlash);
+    int count = CFArrayGetCount(nameStrings);
+    int i;
+    int ret = 1;
 
-  CertNameRef pCertName = createCertName();
+    CertNameRef pCertName = createCertName();
 
-  for(i = 0;i < count;i++)
+    for (i = 0; i < count; i++)
     {
-      CFMutableStringRef dn = CFStringCreateMutableCopy(NULL, 0, CFArrayGetValueAtIndex(nameStrings, i));
-      CFStringTrimWhitespace(dn);
+        CFMutableStringRef dn = CFStringCreateMutableCopy(NULL, 0, CFArrayGetValueAtIndex(nameStrings, i));
+        CFStringTrimWhitespace(dn);
 
-      CFStringRef name, value;
+        CFStringRef name, value;
 
-      if (!parseNameComponent(dn, &name, &value))
-        ret = 0;
+        if (!parseNameComponent(dn, &name, &value))
+        {
+            ret = 0;
+        }
 
-      if (!name || !value)
+        if (!name || !value)
         {
-          if (name)
-            CFRelease(name);
+            if (name)
+            {
+                CFRelease(name);
+            }
 
-          if (value)
-            CFRelease(value);
-          if (name && !value)
-            ret = 0;
+            if (value)
+            {
+                CFRelease(value);
+            }
+            if (name && !value)
+            {
+                ret = 0;
+            }
 
-          CFRelease(dn);
-          continue;
+            CFRelease(dn);
+            continue;
         }
 
-      if (!appendCertField(pCertName, name, value))
-        ret = 0;
-      CFRelease(name);
-      CFRelease(value);
-      CFRelease(dn);
+        if (!appendCertField(pCertName, name, value))
+        {
+            ret = 0;
+        }
+        CFRelease(name);
+        CFRelease(value);
+        CFRelease(dn);
     }
 
-  CFArrayAppendValue(names, pCertName);
-  CFRelease(nameStrings);
-  return ret;
+    CFArrayAppendValue(names, pCertName);
+    CFRelease(nameStrings);
+    return ret;
 }
 
-int arrayParseDescDataPair(const void *val, void *context)
+int
+arrayParseDescDataPair(const void *val, void *context)
 {
-  DescDataRef pDescData = (DescDataRef)val;
-  CertDataRef pCertData = (CertDataRef)context;
-  int ret = 1;
+    DescDataRef pDescData = (DescDataRef)val;
+    CertDataRef pCertData = (CertDataRef)context;
+    int ret = 1;
 
-  if (!pDescData->name || !pDescData->value)
-    return 0;
+    if (!pDescData->name || !pDescData->value)
+    {
+        return 0;
+    }
 
-  if (CFStringCompareWithOptions(pDescData->name, kCertDataSubjectName, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
-    ret = parseCertName(pDescData->value, (CFMutableArrayRef)pCertData->subject);
-  else if (CFStringCompareWithOptions(pDescData->name, kCertDataIssuerName, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
-    ret = parseCertName(pDescData->value, (CFMutableArrayRef)pCertData->issuer);
-  else if (CFStringCompareWithOptions(pDescData->name, kCertDataSha1Name, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
-    pCertData->sha1 = CFRetain(pDescData->value);
-  else if (CFStringCompareWithOptions(pDescData->name, kCertDataMd5Name, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
-    pCertData->md5 = CFRetain(pDescData->value);
-  else if (CFStringCompareWithOptions(pDescData->name, kCertDataSerialName, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
-    pCertData->serial = CFRetain(pDescData->value);
-  else
-    return 0;
+    if (CFStringCompareWithOptions(pDescData->name, kCertDataSubjectName, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
+    {
+        ret = parseCertName(pDescData->value, (CFMutableArrayRef)pCertData->subject);
+    }
+    else if (CFStringCompareWithOptions(pDescData->name, kCertDataIssuerName, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
+    {
+        ret = parseCertName(pDescData->value, (CFMutableArrayRef)pCertData->issuer);
+    }
+    else if (CFStringCompareWithOptions(pDescData->name, kCertDataSha1Name, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
+    {
+        pCertData->sha1 = CFRetain(pDescData->value);
+    }
+    else if (CFStringCompareWithOptions(pDescData->name, kCertDataMd5Name, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
+    {
+        pCertData->md5 = CFRetain(pDescData->value);
+    }
+    else if (CFStringCompareWithOptions(pDescData->name, kCertDataSerialName, CFRangeMake(0, CFStringGetLength(pDescData->name)), kCFCompareCaseInsensitive) == kCFCompareEqualTo)
+    {
+        pCertData->serial = CFRetain(pDescData->value);
+    }
+    else
+    {
+        return 0;
+    }
 
-  return ret;
+    return ret;
 }
 
-CertDataRef createCertDataFromString(const char *description)
+CertDataRef
+createCertDataFromString(const char *description)
 {
-  CertDataRef pCertData = (CertDataRef)malloc(sizeof(CertData));
-  pCertData->subject = CFArrayCreateMutable(NULL, 0, NULL);
-  pCertData->issuer = CFArrayCreateMutable(NULL, 0, NULL);
-  pCertData->sha1 = NULL;
-  pCertData->md5 = NULL;
-  pCertData->serial = NULL;
-
-  CFArrayRef pairs = createDescDataPairs(description);
-  for (int i=0; i<CFArrayGetCount(pairs); i++)
-    if (!arrayParseDescDataPair(CFArrayGetValueAtIndex(pairs, i), pCertData)) {
-      arrayDestroyDescData(pCertData, NULL);
-      CFArrayApplyFunction(pairs, CFRangeMake(0, CFArrayGetCount(pairs)), arrayDestroyDescData, NULL);
-      CFRelease(pairs);
-      return 0;
-    }
-
-  CFArrayApplyFunction(pairs, CFRangeMake(0, CFArrayGetCount(pairs)), arrayDestroyDescData, NULL);
-  CFRelease(pairs);
-  return pCertData;
+    CertDataRef pCertData = (CertDataRef)malloc(sizeof(CertData));
+    pCertData->subject = CFArrayCreateMutable(NULL, 0, NULL);
+    pCertData->issuer = CFArrayCreateMutable(NULL, 0, NULL);
+    pCertData->sha1 = NULL;
+    pCertData->md5 = NULL;
+    pCertData->serial = NULL;
+
+    CFArrayRef pairs = createDescDataPairs(description);
+    for (int i = 0; i<CFArrayGetCount(pairs); i++)
+        if (!arrayParseDescDataPair(CFArrayGetValueAtIndex(pairs, i), pCertData))
+        {
+            arrayDestroyDescData(pCertData, NULL);
+            CFArrayApplyFunction(pairs, CFRangeMake(0, CFArrayGetCount(pairs)), arrayDestroyDescData, NULL);
+            CFRelease(pairs);
+            return 0;
+        }
+
+    CFArrayApplyFunction(pairs, CFRangeMake(0, CFArrayGetCount(pairs)), arrayDestroyDescData, NULL);
+    CFRelease(pairs);
+    return pCertData;
 }
 
-void arrayDestroyCertName(const void *val, void *context)
+void
+arrayDestroyCertName(const void *val, void *context)
 {
-  CertNameRef pCertName = (CertNameRef)val;
-  destroyCertName(pCertName);
+    CertNameRef pCertName = (CertNameRef)val;
+    destroyCertName(pCertName);
 }
 
-void destroyCertData(CertDataRef pCertData)
+void
+destroyCertData(CertDataRef pCertData)
 {
-  if (pCertData->subject)
+    if (pCertData->subject)
     {
-      CFArrayApplyFunction(pCertData->subject, CFRangeMake(0, CFArrayGetCount(pCertData->subject)), arrayDestroyCertName, NULL);
-      CFRelease(pCertData->subject);
+        CFArrayApplyFunction(pCertData->subject, CFRangeMake(0, CFArrayGetCount(pCertData->subject)), arrayDestroyCertName, NULL);
+        CFRelease(pCertData->subject);
     }
 
-  if (pCertData->issuer)
+    if (pCertData->issuer)
     {
-      CFArrayApplyFunction(pCertData->issuer, CFRangeMake(0, CFArrayGetCount(pCertData->issuer)), arrayDestroyCertName, NULL);
-      CFRelease(pCertData->issuer);
+        CFArrayApplyFunction(pCertData->issuer, CFRangeMake(0, CFArrayGetCount(pCertData->issuer)), arrayDestroyCertName, NULL);
+        CFRelease(pCertData->issuer);
     }
 
-  if (pCertData->sha1)
-    CFRelease(pCertData->sha1);
+    if (pCertData->sha1)
+    {
+        CFRelease(pCertData->sha1);
+    }
 
-  if (pCertData->md5)
-    CFRelease(pCertData->md5);
+    if (pCertData->md5)
+    {
+        CFRelease(pCertData->md5);
+    }
 
-  if (pCertData->serial)
-    CFRelease(pCertData->serial);
+    if (pCertData->serial)
+    {
+        CFRelease(pCertData->serial);
+    }
 
-  free(pCertData);
+    free(pCertData);
 }
 
-bool stringArrayMatchesTemplate(CFArrayRef strings, CFArrayRef templateArray)
+bool
+stringArrayMatchesTemplate(CFArrayRef strings, CFArrayRef templateArray)
 {
-  int templateCount, stringCount, i;
+    int templateCount, stringCount, i;
 
-  templateCount = CFArrayGetCount(templateArray);
+    templateCount = CFArrayGetCount(templateArray);
 
-  if (templateCount > 0)
+    if (templateCount > 0)
     {
-      stringCount = CFArrayGetCount(strings);
-      if (stringCount != templateCount)
-        return false;
+        stringCount = CFArrayGetCount(strings);
+        if (stringCount != templateCount)
+        {
+            return false;
+        }
 
-      for(i = 0;i < stringCount;i++)
+        for (i = 0; i < stringCount; i++)
         {
-          CFStringRef str, template;
+            CFStringRef str, template;
 
-          template = (CFStringRef)CFArrayGetValueAtIndex(templateArray, i);
-          str = (CFStringRef)CFArrayGetValueAtIndex(strings, i);
+            template = (CFStringRef)CFArrayGetValueAtIndex(templateArray, i);
+            str = (CFStringRef)CFArrayGetValueAtIndex(strings, i);
 
-          if (CFStringCompareWithOptions(template, str, CFRangeMake(0, CFStringGetLength(template)), kCFCompareCaseInsensitive) != kCFCompareEqualTo)
-            return false;
+            if (CFStringCompareWithOptions(template, str, CFRangeMake(0, CFStringGetLength(template)), kCFCompareCaseInsensitive) != kCFCompareEqualTo)
+            {
+                return false;
+            }
         }
     }
 
-  return true;
+    return true;
 
 }
 
-bool certNameMatchesTemplate(CertNameRef pCertName, CertNameRef pTemplate)
+bool
+certNameMatchesTemplate(CertNameRef pCertName, CertNameRef pTemplate)
 {
-  if (!stringArrayMatchesTemplate(pCertName->countryName, pTemplate->countryName))
-    return false;
-  else if (!stringArrayMatchesTemplate(pCertName->organization, pTemplate->organization))
-    return false;
-  else if (!stringArrayMatchesTemplate(pCertName->organizationalUnit, pTemplate->organizationalUnit))
-    return false;
-  else if (!stringArrayMatchesTemplate(pCertName->commonName, pTemplate->commonName))
-    return false;
-  else if (!stringArrayMatchesTemplate(pCertName->emailAddress, pTemplate->emailAddress))
-    return false;
-  else if (!stringArrayMatchesTemplate(pCertName->stateName, pTemplate->stateName))
-    return false;
-  else if (!stringArrayMatchesTemplate(pCertName->localityName, pTemplate->localityName))
-    return false;
-  else
-    return true;
+    if (!stringArrayMatchesTemplate(pCertName->countryName, pTemplate->countryName))
+    {
+        return false;
+    }
+    else if (!stringArrayMatchesTemplate(pCertName->organization, pTemplate->organization))
+    {
+        return false;
+    }
+    else if (!stringArrayMatchesTemplate(pCertName->organizationalUnit, pTemplate->organizationalUnit))
+    {
+        return false;
+    }
+    else if (!stringArrayMatchesTemplate(pCertName->commonName, pTemplate->commonName))
+    {
+        return false;
+    }
+    else if (!stringArrayMatchesTemplate(pCertName->emailAddress, pTemplate->emailAddress))
+    {
+        return false;
+    }
+    else if (!stringArrayMatchesTemplate(pCertName->stateName, pTemplate->stateName))
+    {
+        return false;
+    }
+    else if (!stringArrayMatchesTemplate(pCertName->localityName, pTemplate->localityName))
+    {
+        return false;
+    }
+    else
+    {
+        return true;
+    }
 }
 
-bool certNameArrayMatchesTemplate(CFArrayRef certNameArray, CFArrayRef templateArray)
+bool
+certNameArrayMatchesTemplate(CFArrayRef certNameArray, CFArrayRef templateArray)
 {
-  int templateCount, certCount, i;
+    int templateCount, certCount, i;
 
-  templateCount = CFArrayGetCount(templateArray);
+    templateCount = CFArrayGetCount(templateArray);
 
-  if (templateCount > 0)
+    if (templateCount > 0)
     {
-      certCount = CFArrayGetCount(certNameArray);
-      if (certCount != templateCount)
-        return false;
+        certCount = CFArrayGetCount(certNameArray);
+        if (certCount != templateCount)
+        {
+            return false;
+        }
 
-      for(i = 0;i < certCount;i++)
+        for (i = 0; i < certCount; i++)
         {
-          CertNameRef pName, pTemplateName;
+            CertNameRef pName, pTemplateName;
 
-          pTemplateName = (CertNameRef)CFArrayGetValueAtIndex(templateArray, i);
-          pName = (CertNameRef)CFArrayGetValueAtIndex(certNameArray, i);
+            pTemplateName = (CertNameRef)CFArrayGetValueAtIndex(templateArray, i);
+            pName = (CertNameRef)CFArrayGetValueAtIndex(certNameArray, i);
 
-          if (!certNameMatchesTemplate(pName, pTemplateName))
-            return false;
+            if (!certNameMatchesTemplate(pName, pTemplateName))
+            {
+                return false;
+            }
         }
     }
 
-  return true;
+    return true;
 }
 
-bool hexStringMatchesTemplate(CFStringRef str, CFStringRef template)
+bool
+hexStringMatchesTemplate(CFStringRef str, CFStringRef template)
 {
-  if (template)
+    if (template)
     {
-      if (!str)
-        return false;
+        if (!str)
+        {
+            return false;
+        }
 
-      CFMutableStringRef strMutable, templateMutable;
+        CFMutableStringRef strMutable, templateMutable;
 
-      strMutable = CFStringCreateMutableCopy(NULL, 0, str);
-      templateMutable = CFStringCreateMutableCopy(NULL, 0, template);
+        strMutable = CFStringCreateMutableCopy(NULL, 0, str);
+        templateMutable = CFStringCreateMutableCopy(NULL, 0, template);
 
-      CFStringFindAndReplace(strMutable, kStringSpace, kStringEmpty, CFRangeMake(0, CFStringGetLength(strMutable)), 0);
-      CFStringFindAndReplace(templateMutable, kStringSpace, kStringEmpty, CFRangeMake(0, CFStringGetLength(templateMutable)), 0);
+        CFStringFindAndReplace(strMutable, kStringSpace, kStringEmpty, CFRangeMake(0, CFStringGetLength(strMutable)), 0);
+        CFStringFindAndReplace(templateMutable, kStringSpace, kStringEmpty, CFRangeMake(0, CFStringGetLength(templateMutable)), 0);
 
-      CFComparisonResult result = CFStringCompareWithOptions(templateMutable, strMutable, CFRangeMake(0, CFStringGetLength(templateMutable)), kCFCompareCaseInsensitive);
+        CFComparisonResult result = CFStringCompareWithOptions(templateMutable, strMutable, CFRangeMake(0, CFStringGetLength(templateMutable)), kCFCompareCaseInsensitive);
 
-      CFRelease(strMutable);
-      CFRelease(templateMutable);
+        CFRelease(strMutable);
+        CFRelease(templateMutable);
 
-      if (result != kCFCompareEqualTo)
-        return false;
+        if (result != kCFCompareEqualTo)
+        {
+            return false;
+        }
     }
 
-  return true;
+    return true;
 }
 
-bool certDataMatchesTemplate(CertDataRef pCertData, CertDataRef pTemplate)
+bool
+certDataMatchesTemplate(CertDataRef pCertData, CertDataRef pTemplate)
 {
-  if (!certNameArrayMatchesTemplate(pCertData->subject, pTemplate->subject))
-    return false;
+    if (!certNameArrayMatchesTemplate(pCertData->subject, pTemplate->subject))
+    {
+        return false;
+    }
 
-  if (!certNameArrayMatchesTemplate(pCertData->issuer, pTemplate->issuer))
-    return false;
+    if (!certNameArrayMatchesTemplate(pCertData->issuer, pTemplate->issuer))
+    {
+        return false;
+    }
 
-  if (!hexStringMatchesTemplate(pCertData->sha1, pTemplate->sha1))
-    return false;
+    if (!hexStringMatchesTemplate(pCertData->sha1, pTemplate->sha1))
+    {
+        return false;
+    }
 
-  if (!hexStringMatchesTemplate(pCertData->md5, pTemplate->md5))
-    return false;
+    if (!hexStringMatchesTemplate(pCertData->md5, pTemplate->md5))
+    {
+        return false;
+    }
 
-  if (!hexStringMatchesTemplate(pCertData->serial, pTemplate->serial))
-    return false;
+    if (!hexStringMatchesTemplate(pCertData->serial, pTemplate->serial))
+    {
+        return false;
+    }
 
-  return true;
+    return true;
 }
 
-bool certExpired(SecCertificateRef certificate)
+bool
+certExpired(SecCertificateRef certificate)
 {
-  bool result;
-  CFDateRef notAfter = GetDateFieldFromCertificate(certificate, kSecOIDX509V1ValidityNotAfter);
-  CFDateRef notBefore = GetDateFieldFromCertificate(certificate, kSecOIDX509V1ValidityNotBefore);
-  CFDateRef now = CFDateCreate(kCFAllocatorDefault, CFAbsoluteTimeGetCurrent());
+    bool result;
+    CFDateRef notAfter = GetDateFieldFromCertificate(certificate, kSecOIDX509V1ValidityNotAfter);
+    CFDateRef notBefore = GetDateFieldFromCertificate(certificate, kSecOIDX509V1ValidityNotBefore);
+    CFDateRef now = CFDateCreate(kCFAllocatorDefault, CFAbsoluteTimeGetCurrent());
 
-  if (!notAfter || !notBefore || !now)
+    if (!notAfter || !notBefore || !now)
     {
-      warnx("GetDateFieldFromCertificate() returned NULL");
-      result = true;
+        warnx("GetDateFieldFromCertificate() returned NULL");
+        result = true;
     }
-  else
+    else
     {
-      if (CFDateCompare(notBefore, now, NULL) != kCFCompareLessThan ||
-          CFDateCompare(now, notAfter, NULL) != kCFCompareLessThan)
-        result = true;
-      else
-        result = false;
+        if (CFDateCompare(notBefore, now, NULL) != kCFCompareLessThan
+            || CFDateCompare(now, notAfter, NULL) != kCFCompareLessThan)
+        {
+            result = true;
+        }
+        else
+        {
+            result = false;
+        }
     }
 
-  CFRelease(notAfter);
-  CFRelease(notBefore);
-  CFRelease(now);
-  return result;
+    CFRelease(notAfter);
+    CFRelease(notBefore);
+    CFRelease(now);
+    return result;
 }
 
-SecIdentityRef findIdentity(CertDataRef pCertDataTemplate)
+SecIdentityRef
+findIdentity(CertDataRef pCertDataTemplate)
 {
-  const void *keys[] = {
-    kSecClass,
-    kSecReturnRef,
-    kSecMatchLimit
-  };
-  const void *values[] = {
-    kSecClassIdentity,
-    kCFBooleanTrue,
-    kSecMatchLimitAll
-  };
-  CFArrayRef result = NULL;
-
-  CFDictionaryRef query = CFDictionaryCreate(NULL, keys, values,
-      sizeof(keys) / sizeof(*keys),
-      &kCFTypeDictionaryKeyCallBacks,
-      &kCFTypeDictionaryValueCallBacks);
-  OSStatus status = SecItemCopyMatching(query, (CFTypeRef*)&result);
-  CFRelease(query);
-  if (status != noErr)
-    {
-      warnx ("No identities in keychain found");
-      return NULL;
-    }
-
-  SecIdentityRef bestIdentity = NULL;
-  CFDateRef bestNotBeforeDate = NULL;
-
-  for (int i=0; i<CFArrayGetCount(result); i++)
-    {
-      SecIdentityRef identity = (SecIdentityRef)CFArrayGetValueAtIndex(result, i);
-      if (identity == NULL)
+    const void *keys[] = {
+        kSecClass,
+        kSecReturnRef,
+        kSecMatchLimit
+    };
+    const void *values[] = {
+        kSecClassIdentity,
+        kCFBooleanTrue,
+        kSecMatchLimitAll
+    };
+    CFArrayRef result = NULL;
+
+    CFDictionaryRef query = CFDictionaryCreate(NULL, keys, values,
+                                               sizeof(keys) / sizeof(*keys),
+                                               &kCFTypeDictionaryKeyCallBacks,
+                                               &kCFTypeDictionaryValueCallBacks);
+    OSStatus status = SecItemCopyMatching(query, (CFTypeRef *)&result);
+    CFRelease(query);
+    if (status != noErr)
+    {
+        warnx("No identities in keychain found");
+        return NULL;
+    }
+
+    SecIdentityRef bestIdentity = NULL;
+    CFDateRef bestNotBeforeDate = NULL;
+
+    for (int i = 0; i<CFArrayGetCount(result); i++)
+    {
+        SecIdentityRef identity = (SecIdentityRef)CFArrayGetValueAtIndex(result, i);
+        if (identity == NULL)
         {
-          warnx ("identity == NULL");
-          continue;
+            warnx("identity == NULL");
+            continue;
         }
 
-      SecCertificateRef certificate = NULL;
-      SecIdentityCopyCertificate (identity, &certificate);
-      if (certificate == NULL)
+        SecCertificateRef certificate = NULL;
+        SecIdentityCopyCertificate(identity, &certificate);
+        if (certificate == NULL)
         {
-          warnx ("SecIdentityCopyCertificate() returned NULL");
-          continue;
+            warnx("SecIdentityCopyCertificate() returned NULL");
+            continue;
         }
 
-      CertDataRef pCertData2 = createCertDataFromCertificate(certificate);
-      if (pCertData2 == NULL)
+        CertDataRef pCertData2 = createCertDataFromCertificate(certificate);
+        if (pCertData2 == NULL)
         {
-          warnx ("createCertDataFromCertificate() returned NULL");
-          goto release_cert;
+            warnx("createCertDataFromCertificate() returned NULL");
+            goto release_cert;
         }
-      bool bMatches = certDataMatchesTemplate(pCertData2, pCertDataTemplate);
-      bool bExpired = certExpired(certificate);
-      destroyCertData(pCertData2);
+        bool bMatches = certDataMatchesTemplate(pCertData2, pCertDataTemplate);
+        bool bExpired = certExpired(certificate);
+        destroyCertData(pCertData2);
 
-      if (bMatches && !bExpired)
+        if (bMatches && !bExpired)
         {
-          CFDateRef notBeforeDate = GetDateFieldFromCertificate(certificate, kSecOIDX509V1ValidityNotBefore);
-          if (!notBeforeDate)
+            CFDateRef notBeforeDate = GetDateFieldFromCertificate(certificate, kSecOIDX509V1ValidityNotBefore);
+            if (!notBeforeDate)
             {
-              warnx ("GetDateFieldFromCertificate() returned NULL");
-              goto release_cert;
+                warnx("GetDateFieldFromCertificate() returned NULL");
+                goto release_cert;
             }
-          if (bestIdentity == NULL)
+            if (bestIdentity == NULL)
             {
-              CFRetain(identity);
-              bestIdentity = identity;
+                CFRetain(identity);
+                bestIdentity = identity;
 
-              bestNotBeforeDate = notBeforeDate;
-              CFRetain(notBeforeDate);
+                bestNotBeforeDate = notBeforeDate;
+                CFRetain(notBeforeDate);
             }
-          else if (CFDateCompare(bestNotBeforeDate, notBeforeDate, NULL) == kCFCompareLessThan)
+            else if (CFDateCompare(bestNotBeforeDate, notBeforeDate, NULL) == kCFCompareLessThan)
             {
-              CFRelease(bestIdentity);
-              CFRetain(identity);
-              bestIdentity = identity;
+                CFRelease(bestIdentity);
+                CFRetain(identity);
+                bestIdentity = identity;
 
-              bestNotBeforeDate = notBeforeDate;
-              CFRetain(notBeforeDate);
+                bestNotBeforeDate = notBeforeDate;
+                CFRetain(notBeforeDate);
             }
-          CFRelease(notBeforeDate);
+            CFRelease(notBeforeDate);
         }
-    release_cert:
-      CFRelease(certificate);
+release_cert:
+        CFRelease(certificate);
     }
-  CFRelease(result);
+    CFRelease(result);
 
-  return bestIdentity;
+    return bestIdentity;
 }