]> git.ipfire.org Git - thirdparty/cups.git/blobdiff - scheduler/auth.c
Import CUPS v2.0.3
[thirdparty/cups.git] / scheduler / auth.c
index 191e17fc253a9c065f3f52aa924297a7dd237a76..3f3f411be839cc14fa7db9af8c5241c0e9955f21 100644 (file)
@@ -1,52 +1,19 @@
 /*
- * "$Id: auth.c 7830 2008-08-04 20:38:50Z mike $"
+ * "$Id: auth.c 12604 2015-05-06 01:43:05Z msweet $"
  *
- *   Authorization routines for the CUPS scheduler.
+ * Authorization routines for the CUPS scheduler.
  *
- *   Copyright 2007-2011 by Apple Inc.
- *   Copyright 1997-2007 by Easy Software Products, all rights reserved.
+ * Copyright 2007-2015 by Apple Inc.
+ * Copyright 1997-2007 by Easy Software Products, all rights reserved.
  *
- *   This file contains Kerberos support code, copyright 2006 by
- *   Jelmer Vernooij.
+ * This file contains Kerberos support code, copyright 2006 by
+ * Jelmer Vernooij.
  *
- *   These coded instructions, statements, and computer programs are the
- *   property of Apple Inc. and are protected by Federal copyright
- *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
- *   which should have been included with this file.  If this file is
- *   file is missing or damaged, see the license at "http://www.cups.org/".
- *
- * Contents:
- *
- *   cupsdAddIPMask()          - Add an IP address authorization mask.
- *   cupsdAddLocation()        - Add a location for authorization.
- *   cupsdAddName()            - Add a name to a location...
- *   cupsdAddNameMask()        - Add a host or interface name authorization
- *                               mask.
- *   cupsdAuthorize()          - Validate any authorization credentials.
- *   cupsdCheckAccess()        - Check whether the given address is allowed to
- *                               access a location.
- *   cupsdCheckAuth()          - Check authorization masks.
- *   cupsdCheckGroup()         - Check for a user's group membership.
- *   cupsdCopyKrb5Creds()      - Get a copy of the Kerberos credentials.
- *   cupsdCopyLocation()       - Make a copy of a location...
- *   cupsdDeleteAllLocations() - Free all memory used for location
- *                               authorization.
- *   cupsdFindBest()           - Find the location entry that best matches the
- *                               resource.
- *   cupsdFindLocation()       - Find the named location.
- *   cupsdFreeLocation()       - Free all memory used by a location.
- *   cupsdIsAuthorized()       - Check to see if the user is authorized...
- *   cupsdNewLocation()        - Create a new location for authorization.
- *   check_authref()           - Check if an authorization services reference
- *                               has the supplied right.
- *   compare_locations()       - Compare two locations.
- *   copy_authmask()           - Copy function for auth masks.
- *   cups_crypt()              - Encrypt the password using the DES or MD5
- *                               algorithms, as needed.
- *   free_authmask()           - Free function for auth masks.
- *   get_md5_password()        - Get an MD5 password.
- *   pam_func()                - PAM conversation function.
- *   to64()                    - Base64-encode an integer value...
+ * These coded instructions, statements, and computer programs are the
+ * property of Apple Inc. and are protected by Federal copyright
+ * law.  Distribution and use rights are outlined in the file "LICENSE.txt"
+ * which should have been included with this file.  If this file is
+ * file is missing or damaged, see the license at "http://www.cups.org/".
  */
 
 /*
@@ -68,9 +35,6 @@
 #    include <security/pam_appl.h>
 #  endif /* HAVE_PAM_PAM_APPL_H */
 #endif /* HAVE_LIBPAM */
-#ifdef HAVE_USERSEC_H
-#  include <usersec.h>
-#endif /* HAVE_USERSEC_H */
 #ifdef HAVE_MEMBERSHIP_H
 #  include <membership.h>
 #endif /* HAVE_MEMBERSHIP_H */
@@ -90,14 +54,13 @@ extern const char *cssmErrorString(int error);
 typedef struct xucred cupsd_ucred_t;
 #  define CUPSD_UCRED_UID(c) (c).cr_uid
 #else
+#  ifndef __OpenBSD__
 typedef struct ucred cupsd_ucred_t;
+#  else
+typedef struct sockpeercred cupsd_ucred_t;
+#  endif
 #  define CUPSD_UCRED_UID(c) (c).uid
 #endif /* HAVE_SYS_UCRED_H */
-#ifdef HAVE_KRB5_IPC_CLIENT_SET_TARGET_UID
-/* Not in public headers... */
-extern void    krb5_ipc_client_set_target_uid(uid_t);
-extern void    krb5_ipc_client_clear_target(void);
-#endif /* HAVE_KRB5_IPC_CLIENT_SET_TARGET_UID */
 
 
 /*
@@ -110,16 +73,14 @@ static int         check_authref(cupsd_client_t *con, const char *right);
 static int             compare_locations(cupsd_location_t *a,
                                          cupsd_location_t *b);
 static cupsd_authmask_t        *copy_authmask(cupsd_authmask_t *am, void *data);
-#if !HAVE_LIBPAM && !defined(HAVE_USERSEC_H)
+#if !HAVE_LIBPAM
 static char            *cups_crypt(const char *pw, const char *salt);
-#endif /* !HAVE_LIBPAM && !HAVE_USERSEC_H */
+#endif /* !HAVE_LIBPAM */
 static void            free_authmask(cupsd_authmask_t *am, void *data);
-static char            *get_md5_password(const char *username,
-                                         const char *group, char passwd[33]);
 #if HAVE_LIBPAM
 static int             pam_func(int, const struct pam_message **,
                                 struct pam_response **, void *);
-#elif !defined(HAVE_USERSEC_H)
+#else
 static void            to64(char *s, unsigned long v, int n);
 #endif /* HAVE_LIBPAM */
 
@@ -131,21 +92,12 @@ static void                to64(char *s, unsigned long v, int n);
 #if HAVE_LIBPAM
 typedef struct cupsd_authdata_s                /**** Authentication data ****/
 {
-  char username[33],                   /* Username string */
-       password[33];                   /* Password string */
+  char username[HTTP_MAX_VALUE],       /* Username string */
+       password[HTTP_MAX_VALUE];       /* Password string */
 } cupsd_authdata_t;
 #endif /* HAVE_LIBPAM */
 
 
-/*
- * Local globals...
- */
-
-#if defined(__hpux) && HAVE_LIBPAM
-static cupsd_authdata_t        *auth_data;     /* Current client being authenticated */
-#endif /* __hpux && HAVE_LIBPAM */
-
-
 /*
  * 'cupsdAddIPMask()' - Add an IP address authorization mask.
  */
@@ -253,7 +205,7 @@ cupsdAddNameMask(cups_array_t **masks,      /* IO - Masks array (created as needed) *
                   "cupsdAddNameMask(masks=%p(%p), name=\"%s\")",
                   masks, *masks, name);
 
-  if (!strcasecmp(name, "@LOCAL"))
+  if (!_cups_strcasecmp(name, "@LOCAL"))
   {
    /*
     * Deny *interface*...
@@ -262,7 +214,7 @@ cupsdAddNameMask(cups_array_t **masks,      /* IO - Masks array (created as needed) *
     temp.type           = CUPSD_AUTH_INTERFACE;
     temp.mask.name.name = (char *)"*";
   }
-  else if (!strncasecmp(name, "@IF(", 4))
+  else if (!_cups_strncasecmp(name, "@IF(", 4))
   {
    /*
     * Deny *interface*...
@@ -323,29 +275,11 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
   int          type;                   /* Authentication type */
   const char   *authorization;         /* Pointer into Authorization string */
   char         *ptr,                   /* Pointer into string */
-               username[256],          /* Username string */
-               password[33];           /* Password string */
+               username[HTTP_MAX_VALUE],
+                                       /* Username string */
+               password[HTTP_MAX_VALUE];
+                                       /* Password string */
   cupsd_cert_t *localuser;             /* Certificate username */
-  char         nonce[HTTP_MAX_VALUE],  /* Nonce value from client */
-               md5[33],                /* MD5 password */
-               basicmd5[33];           /* MD5 of Basic password */
-  static const char * const states[] = /* HTTP client states... */
-               {
-                 "WAITING",
-                 "OPTIONS",
-                 "GET",
-                 "GET",
-                 "HEAD",
-                 "POST",
-                 "POST",
-                 "POST",
-                 "PUT",
-                 "PUT",
-                 "DELETE",
-                 "TRACE",
-                 "CLOSE",
-                 "STATUS"
-               };
 
 
  /*
@@ -353,35 +287,40 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
   * authentication to expect...
   */
 
-  con->best = cupsdFindBest(con->uri, con->http.state);
+  con->best = cupsdFindBest(con->uri, httpGetState(con->http));
   con->type = CUPSD_AUTH_NONE;
 
   cupsdLogMessage(CUPSD_LOG_DEBUG2,
-                  "cupsdAuthorize: con->uri=\"%s\", con->best=%p(%s)",
-                  con->uri, con->best, con->best ? con->best->location : "");
+                  "[Client %d] con->uri=\"%s\", con->best=%p(%s)",
+                  con->number, con->uri, con->best,
+                  con->best ? con->best->location : "");
 
   if (con->best && con->best->type != CUPSD_AUTH_NONE)
   {
     if (con->best->type == CUPSD_AUTH_DEFAULT)
-      type = DefaultAuthType;
+      type = cupsdDefaultAuthType();
     else
       type = con->best->type;
   }
   else
-    type = DefaultAuthType;
+    type = cupsdDefaultAuthType();
 
  /*
   * Decode the Authorization string...
   */
 
-  authorization = httpGetField(&con->http, HTTP_FIELD_AUTHORIZATION);
+  authorization = httpGetField(con->http, HTTP_FIELD_AUTHORIZATION);
 
-  cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdAuthorize: Authorization=\"%s\"",
-                  authorization);
+  cupsdLogMessage(CUPSD_LOG_DEBUG2, "[Client %d] Authorization=\"%s\"",
+                  con->number, authorization);
 
   username[0] = '\0';
   password[0] = '\0';
 
+#ifdef HAVE_GSSAPI
+  con->gss_uid = 0;
+#endif /* HAVE_GSSAPI */
+
 #ifdef HAVE_AUTHORIZATION_H
   if (con->authref)
   {
@@ -397,14 +336,17 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
     */
 
     cupsdLogMessage(CUPSD_LOG_DEBUG,
-                    "cupsdAuthorize: No authentication data provided.");
+                    "[Client %d] No authentication data provided.",
+                    con->number);
     return;
   }
 #ifdef HAVE_AUTHORIZATION_H
   else if (!strncmp(authorization, "AuthRef ", 8) &&
-           !strcasecmp(con->http.hostname, "localhost"))
+           httpAddrLocalhost(httpGetAddress(con->http)))
   {
     OSStatus           status;         /* Status */
+    char               authdata[HTTP_MAX_VALUE];
+                                       /* Nonce value from client */
     int                        authlen;        /* Auth string length */
     AuthorizationItemSet *authinfo;    /* Authorization item set */
 
@@ -416,22 +358,23 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
     while (isspace(*authorization & 255))
       authorization ++;
 
-    authlen = sizeof(nonce);
-    httpDecode64_2(nonce, &authlen, authorization);
+    authlen = sizeof(authdata);
+    httpDecode64_2(authdata, &authlen, authorization);
 
     if (authlen != kAuthorizationExternalFormLength)
     {
       cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "External Authorization reference size is incorrect!");
+                     "[Client %d] External Authorization reference size is "
+                     "incorrect.", con->number);
       return;
     }
 
-    if ((status = AuthorizationCreateFromExternalForm(
-                     (AuthorizationExternalForm *)nonce, &con->authref)) != 0)
+    if ((status = AuthorizationCreateFromExternalForm((AuthorizationExternalForm *)authdata, &con->authref)) != 0)
     {
       cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "AuthorizationCreateFromExternalForm returned %d (%s)",
-                     (int)status, cssmErrorString(status));
+                     "[Client %d] AuthorizationCreateFromExternalForm "
+                     "returned %d (%s)", con->number, (int)status,
+                     cssmErrorString(status));
       return;
     }
 
@@ -446,8 +389,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
         strlcpy(username, authinfo->items[0].value, sizeof(username));
 
         cupsdLogMessage(CUPSD_LOG_DEBUG,
-                       "cupsdAuthorize: Authorized as \"%s\" using AuthRef",
-                       username);
+                       "[Client %d] Authorized as \"%s\" using AuthRef",
+                       con->number, username);
       }
 
       AuthorizationFreeItemSet(authinfo);
@@ -465,17 +408,19 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
 
       peersize = sizeof(peercred);
 
-      if (getsockopt(con->http.fd, 0, LOCAL_PEERCRED, &peercred, &peersize))
+      if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize))
       {
-        cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get peer credentials - %s",
-                        strerror(errno));
+        cupsdLogMessage(CUPSD_LOG_ERROR,
+                        "[Client %d] Unable to get peer credentials - %s",
+                        con->number, strerror(errno));
         return;
       }
 
       if ((pwd = getpwuid(CUPSD_UCRED_UID(peercred))) == NULL)
       {
         cupsdLogMessage(CUPSD_LOG_ERROR,
-                        "Unable to find UID %d for peer credentials.",
+                        "[Client %d] Unable to find UID %d for peer "
+                        "credentials.", con->number,
                         (int)CUPSD_UCRED_UID(peercred));
         return;
       }
@@ -483,8 +428,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
       strlcpy(username, pwd->pw_name, sizeof(username));
 
       cupsdLogMessage(CUPSD_LOG_DEBUG,
-                     "cupsdAuthorize: Authorized as \"%s\" using "
-                     "AuthRef + PeerCred", username);
+                     "[Client %d] Authorized as \"%s\" using "
+                     "AuthRef + PeerCred", con->number, username);
     }
 
     con->type = CUPSD_AUTH_BASIC;
@@ -492,7 +437,7 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
 #endif /* HAVE_AUTHORIZATION_H */
 #if defined(SO_PEERCRED) && defined(AF_LOCAL)
   else if (!strncmp(authorization, "PeerCred ", 9) &&
-           con->http.hostaddr->addr.sa_family == AF_LOCAL)
+           con->http->hostaddr->addr.sa_family == AF_LOCAL && con->best)
   {
    /*
     * Use peer credentials from domain socket connection...
@@ -501,11 +446,45 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
     struct passwd      *pwd;           /* Password entry for this user */
     cupsd_ucred_t      peercred;       /* Peer credentials */
     socklen_t          peersize;       /* Size of peer credentials */
+#ifdef HAVE_AUTHORIZATION_H
+    const char         *name;          /* Authorizing name */
+    int                        no_peer = 0;    /* Don't allow peer credentials? */
+
+   /*
+    * See if we should allow peer credentials...
+    */
+
+    for (name = (char *)cupsArrayFirst(con->best->names);
+         name;
+         name = (char *)cupsArrayNext(con->best->names))
+    {
+      if (!_cups_strncasecmp(name, "@AUTHKEY(", 9) ||
+          !_cups_strcasecmp(name, "@SYSTEM"))
+      {
+       /* Normally don't want peer credentials if we need an auth key... */
+       no_peer = 1;
+      }
+      else if (!_cups_strcasecmp(name, "@OWNER"))
+      {
+       /* but if @OWNER is present then we allow it... */
+        no_peer = 0;
+        break;
+      }
+    }
 
+    if (no_peer)
+    {
+      cupsdLogMessage(CUPSD_LOG_ERROR,
+                     "[Client %d] PeerCred authentication not allowed for "
+                     "resource per AUTHKEY policy.", con->number);
+      return;
+    }
+#endif /* HAVE_AUTHORIZATION_H */
 
     if ((pwd = getpwnam(authorization + 9)) == NULL)
     {
-      cupsdLogMessage(CUPSD_LOG_ERROR, "User \"%s\" does not exist!",
+      cupsdLogMessage(CUPSD_LOG_ERROR,
+                      "[Client %d] User \"%s\" does not exist.", con->number,
                       authorization + 9);
       return;
     }
@@ -513,46 +492,51 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
     peersize = sizeof(peercred);
 
 #  ifdef __APPLE__
-    if (getsockopt(con->http.fd, 0, LOCAL_PEERCRED, &peercred, &peersize))
+    if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize))
 #  else
-    if (getsockopt(con->http.fd, SOL_SOCKET, SO_PEERCRED, &peercred, &peersize))
+    if (getsockopt(httpGetFd(con->http), SOL_SOCKET, SO_PEERCRED, &peercred, &peersize))
 #  endif /* __APPLE__ */
     {
-      cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get peer credentials - %s",
-                      strerror(errno));
+      cupsdLogMessage(CUPSD_LOG_ERROR,
+                      "[Client %d] Unable to get peer credentials - %s",
+                      con->number, strerror(errno));
       return;
     }
 
     if (pwd->pw_uid != CUPSD_UCRED_UID(peercred))
     {
       cupsdLogMessage(CUPSD_LOG_ERROR,
-                      "Invalid peer credentials for \"%s\" - got %d, "
-                     "expected %d!", authorization + 9,
+                      "[Client %d] Invalid peer credentials for \"%s\" - got "
+                      "%d, expected %d!", con->number, authorization + 9,
                      CUPSD_UCRED_UID(peercred), pwd->pw_uid);
 #  ifdef HAVE_SYS_UCRED_H
-      cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAuthorize: cr_version=%d",
-                      peercred.cr_version);
-      cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAuthorize: cr_uid=%d",
-                      peercred.cr_uid);
-      cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAuthorize: cr_ngroups=%d",
-                      peercred.cr_ngroups);
-      cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAuthorize: cr_groups[0]=%d",
-                      peercred.cr_groups[0]);
+      cupsdLogMessage(CUPSD_LOG_DEBUG, "[Client %d] cr_version=%d",
+                      con->number, peercred.cr_version);
+      cupsdLogMessage(CUPSD_LOG_DEBUG, "[Client %d] cr_uid=%d",
+                      con->number, peercred.cr_uid);
+      cupsdLogMessage(CUPSD_LOG_DEBUG, "[Client %d] cr_ngroups=%d",
+                      con->number, peercred.cr_ngroups);
+      cupsdLogMessage(CUPSD_LOG_DEBUG, "[Client %d] cr_groups[0]=%d",
+                      con->number, peercred.cr_groups[0]);
 #  endif /* HAVE_SYS_UCRED_H */
       return;
     }
 
     strlcpy(username, authorization + 9, sizeof(username));
 
+#  ifdef HAVE_GSSAPI
+    con->gss_uid = CUPSD_UCRED_UID(peercred);
+#  endif /* HAVE_GSSAPI */
+
     cupsdLogMessage(CUPSD_LOG_DEBUG,
-                    "cupsdAuthorize: Authorized as %s using PeerCred",
+                    "[Client %d] Authorized as %s using PeerCred", con->number,
                    username);
 
     con->type = CUPSD_AUTH_BASIC;
   }
 #endif /* SO_PEERCRED && AF_LOCAL */
   else if (!strncmp(authorization, "Local", 5) &&
-           !strcasecmp(con->http.hostname, "localhost"))
+          httpAddrLocalhost(httpGetAddress(con->http)))
   {
    /*
     * Get Local certificate authentication data...
@@ -562,28 +546,20 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
     while (isspace(*authorization & 255))
       authorization ++;
 
-    if ((localuser = cupsdFindCert(authorization)) != NULL)
-    {
-      strlcpy(username, localuser->username, sizeof(username));
-
-      cupsdLogMessage(CUPSD_LOG_DEBUG,
-                     "cupsdAuthorize: Authorized as %s using Local",
-                     username);
-    }
-    else
+    if ((localuser = cupsdFindCert(authorization)) == NULL)
     {
       cupsdLogMessage(CUPSD_LOG_ERROR,
-                      "cupsdAuthorize: Local authentication certificate not "
-                     "found!");
+                      "[Client %d] Local authentication certificate not found.",
+                      con->number);
       return;
     }
 
-#ifdef HAVE_GSSAPI
-    if (localuser->ccache)
-      con->type = CUPSD_AUTH_NEGOTIATE;
-    else
-#endif /* HAVE_GSSAPI */
-      con->type = CUPSD_AUTH_BASIC;
+    strlcpy(username, localuser->username, sizeof(username));
+    con->type = localuser->type;
+
+    cupsdLogMessage(CUPSD_LOG_DEBUG,
+                   "[Client %d] Authorized as %s using Local", con->number,
+                   username);
   }
   else if (!strncmp(authorization, "Basic", 5))
   {
@@ -607,8 +583,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
 
     if ((ptr = strchr(username, ':')) == NULL)
     {
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                      "cupsdAuthorize: Missing Basic password!");
+      cupsdLogMessage(CUPSD_LOG_ERROR, "[Client %d] Missing Basic password.",
+                      con->number);
       return;
     }
 
@@ -620,8 +596,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
       * Username must not be empty...
       */
 
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                      "cupsdAuthorize: Empty Basic username!");
+      cupsdLogMessage(CUPSD_LOG_ERROR, "[Client %d] Empty Basic username.",
+                      con->number);
       return;
     }
 
@@ -631,8 +607,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
       * Password must not be empty...
       */
 
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                      "cupsdAuthorize: Empty Basic password!");
+      cupsdLogMessage(CUPSD_LOG_ERROR, "[Client %d] Empty Basic password.",
+                      con->number);
       return;
     }
 
@@ -662,40 +638,31 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
             strlcpy(data.username, username, sizeof(data.username));
            strlcpy(data.password, password, sizeof(data.password));
 
-#  if defined(__sun) || defined(__hpux)
+#  ifdef __sun
            pamdata.conv        = (int (*)(int, struct pam_message **,
                                           struct pam_response **,
                                           void *))pam_func;
 #  else
            pamdata.conv        = pam_func;
-#  endif /* __sun || __hpux */
+#  endif /* __sun */
            pamdata.appdata_ptr = &data;
 
-#  ifdef __hpux
-          /*
-           * Workaround for HP-UX bug in pam_unix; see pam_func() below for
-           * more info...
-           */
-
-           auth_data = &data;
-#  endif /* __hpux */
-
            pamerr = pam_start("cups", username, &pamdata, &pamh);
            if (pamerr != PAM_SUCCESS)
            {
              cupsdLogMessage(CUPSD_LOG_ERROR,
-                             "cupsdAuthorize: pam_start() returned %d (%s)!",
-                             pamerr, pam_strerror(pamh, pamerr));
+                             "[Client %d] pam_start() returned %d (%s)",
+                             con->number, pamerr, pam_strerror(pamh, pamerr));
              return;
            }
 
 #  ifdef HAVE_PAM_SET_ITEM
 #    ifdef PAM_RHOST
-           pamerr = pam_set_item(pamh, PAM_RHOST, con->http.hostname);
+           pamerr = pam_set_item(pamh, PAM_RHOST, con->http->hostname);
            if (pamerr != PAM_SUCCESS)
              cupsdLogMessage(CUPSD_LOG_WARN,
-                             "cupsdAuthorize: pam_set_item(PAM_RHOST) "
-                             "returned %d (%s)!", pamerr,
+                             "[Client %d] pam_set_item(PAM_RHOST) "
+                             "returned %d (%s)", con->number, pamerr,
                              pam_strerror(pamh, pamerr));
 #    endif /* PAM_RHOST */
 
@@ -703,8 +670,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
            pamerr = pam_set_item(pamh, PAM_TTY, "cups");
            if (pamerr != PAM_SUCCESS)
              cupsdLogMessage(CUPSD_LOG_WARN,
-                             "cupsdAuthorize: pam_set_item(PAM_TTY) "
-                             "returned %d (%s)!", pamerr,
+                             "[Client %d] pam_set_item(PAM_TTY) "
+                             "returned %d (%s)!", con->number, pamerr,
                              pam_strerror(pamh, pamerr));
 #    endif /* PAM_TTY */
 #  endif /* HAVE_PAM_SET_ITEM */
@@ -713,9 +680,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
            if (pamerr != PAM_SUCCESS)
            {
              cupsdLogMessage(CUPSD_LOG_ERROR,
-                             "cupsdAuthorize: pam_authenticate() returned %d "
-                             "(%s)!",
-                             pamerr, pam_strerror(pamh, pamerr));
+                             "[Client %d] pam_authenticate() returned %d (%s)",
+                             con->number, pamerr, pam_strerror(pamh, pamerr));
              pam_end(pamh, 0);
              return;
            }
@@ -724,8 +690,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
             pamerr = pam_setcred(pamh, PAM_ESTABLISH_CRED | PAM_SILENT);
            if (pamerr != PAM_SUCCESS)
              cupsdLogMessage(CUPSD_LOG_WARN,
-                             "cupsdAuthorize: pam_setcred() "
-                             "returned %d (%s)!", pamerr,
+                             "[Client %d] pam_setcred() returned %d (%s)",
+                             con->number, pamerr,
                              pam_strerror(pamh, pamerr));
 #  endif /* HAVE_PAM_SETCRED */
 
@@ -733,38 +699,14 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
            if (pamerr != PAM_SUCCESS)
            {
              cupsdLogMessage(CUPSD_LOG_ERROR,
-                             "cupsdAuthorize: pam_acct_mgmt() returned %d "
-                             "(%s)!",
-                             pamerr, pam_strerror(pamh, pamerr));
+                             "[Client %d] pam_acct_mgmt() returned %d (%s)",
+                             con->number, pamerr, pam_strerror(pamh, pamerr));
              pam_end(pamh, 0);
              return;
            }
 
            pam_end(pamh, PAM_SUCCESS);
 
-#elif defined(HAVE_USERSEC_H)
-          /*
-           * Use AIX authentication interface...
-           */
-
-           char        *authmsg;       /* Authentication message */
-           int         reenter;        /* ??? */
-
-
-           cupsdLogMessage(CUPSD_LOG_DEBUG,
-                           "cupsdAuthorize: AIX authenticate of username "
-                           "\"%s\"", username);
-
-           reenter = 1;
-           if (authenticate(username, password, &reenter, &authmsg) != 0)
-           {
-             cupsdLogMessage(CUPSD_LOG_DEBUG,
-                             "cupsdAuthorize: Unable to authenticate username "
-                             "\"%s\": %s",
-                             username, strerror(errno));
-             return;
-           }
-
 #else
            /*
            * Use normal UNIX password file-based authentication...
@@ -787,8 +729,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
              */
 
              cupsdLogMessage(CUPSD_LOG_ERROR,
-                             "cupsdAuthorize: Unknown username \"%s\"!",
-                             username);
+                             "[Client %d] Unknown username \"%s\".",
+                             con->number, username);
              return;
            }
 
@@ -803,8 +745,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
              */
 
              cupsdLogMessage(CUPSD_LOG_ERROR,
-                             "cupsdAuthorize: Username \"%s\" has no shadow "
-                             "password!", username);
+                             "[Client %d] Username \"%s\" has no shadow "
+                             "password.", con->number, username);
              return;
            }
 
@@ -818,8 +760,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
              */
 
              cupsdLogMessage(CUPSD_LOG_ERROR,
-                             "cupsdAuthorize: Username \"%s\" has no password!",
-                             username);
+                             "[Client %d] Username \"%s\" has no password.",
+                             con->number, username);
              return;
            }
 
@@ -831,8 +773,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
            pass = cups_crypt(password, pw->pw_passwd);
 
            cupsdLogMessage(CUPSD_LOG_DEBUG2,
-                           "cupsdAuthorize: pw_passwd=\"%s\", crypt=\"%s\"",
-                           pw->pw_passwd, pass);
+                           "[Client %d] pw_passwd=\"%s\", crypt=\"%s\"",
+                           con->number, pw->pw_passwd, pass);
 
            if (!pass || strcmp(pw->pw_passwd, pass))
            {
@@ -842,15 +784,14 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
                pass = cups_crypt(password, spw->sp_pwdp);
 
                cupsdLogMessage(CUPSD_LOG_DEBUG2,
-                               "cupsdAuthorize: sp_pwdp=\"%s\", crypt=\"%s\"",
-                               spw->sp_pwdp, pass);
+                               "[Client %d] sp_pwdp=\"%s\", crypt=\"%s\"",
+                               con->number, spw->sp_pwdp, pass);
 
                if (pass == NULL || strcmp(spw->sp_pwdp, pass))
                {
                  cupsdLogMessage(CUPSD_LOG_ERROR,
-                                 "cupsdAuthorize: Authentication failed for "
-                                 "user \"%s\"!",
-                                 username);
+                                 "[Client %d] Authentication failed for user "
+                                 "\"%s\".", con->number, username);
                  return;
                }
              }
@@ -858,9 +799,8 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
 #  endif /* HAVE_SHADOW_H */
              {
                cupsdLogMessage(CUPSD_LOG_ERROR,
-                               "cupsdAuthorize: Authentication failed for "
-                               "user \"%s\"!",
-                               username);
+                               "[Client %d] Authentication failed for user "
+                               "\"%s\".", con->number, username);
                return;
               }
            }
@@ -868,215 +808,14 @@ cupsdAuthorize(cupsd_client_t *con)      /* I - Client connection */
           }
 
          cupsdLogMessage(CUPSD_LOG_DEBUG,
-                         "cupsdAuthorize: Authorized as %s using Basic",
-                         username);
+                         "[Client %d] Authorized as %s using Basic",
+                         con->number, username);
           break;
-
-      case CUPSD_AUTH_BASICDIGEST :
-         /*
-         * Do Basic authentication with the Digest password file...
-         */
-
-         if (!get_md5_password(username, NULL, md5))
-         {
-            cupsdLogMessage(CUPSD_LOG_ERROR,
-                           "cupsdAuthorize: Unknown MD5 username \"%s\"!",
-                           username);
-            return;
-         }
-
-         httpMD5(username, "CUPS", password, basicmd5);
-
-         if (strcmp(md5, basicmd5))
-         {
-            cupsdLogMessage(CUPSD_LOG_ERROR,
-                           "cupsdAuthorize: Authentication failed for \"%s\"!",
-                           username);
-            return;
-         }
-
-         cupsdLogMessage(CUPSD_LOG_DEBUG,
-                         "cupsdAuthorize: Authorized as %s using BasicDigest",
-                         username);
-         break;
     }
 
     con->type = type;
   }
-  else if (!strncmp(authorization, "Digest", 6))
-  {
-   /*
-    * Get the username, password, and nonce from the Digest attributes...
-    */
-
-    if (!httpGetSubField2(&(con->http), HTTP_FIELD_AUTHORIZATION, "username",
-                          username, sizeof(username)) || !username[0])
-    {
-     /*
-      * Username must not be empty...
-      */
-
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                      "cupsdAuthorize: Empty or missing Digest username!");
-      return;
-    }
-
-    if (!httpGetSubField2(&(con->http), HTTP_FIELD_AUTHORIZATION, "response",
-                          password, sizeof(password)) || !password[0])
-    {
-     /*
-      * Password must not be empty...
-      */
-
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                      "cupsdAuthorize: Empty or missing Digest password!");
-      return;
-    }
-
-    if (!httpGetSubField(&(con->http), HTTP_FIELD_AUTHORIZATION, "nonce",
-                         nonce))
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "cupsdAuthorize: No nonce value for Digest "
-                     "authentication!");
-      return;
-    }
-
-    if (strcmp(con->http.hostname, nonce))
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "cupsdAuthorize: Bad nonce value, expected \"%s\", "
-                     "got \"%s\"!", con->http.hostname, nonce);
-      return;
-    }
-
-   /*
-    * Validate the username and password...
-    */
-
-    if (!get_md5_password(username, NULL, md5))
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "cupsdAuthorize: Unknown MD5 username \"%s\"!",
-                     username);
-      return;
-    }
-
-    httpMD5Final(nonce, states[con->http.state], con->uri, md5);
-
-    if (strcmp(md5, password))
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "cupsdAuthorize: Authentication failed for \"%s\"!",
-                     username);
-      return;
-    }
-
-    cupsdLogMessage(CUPSD_LOG_DEBUG,
-                    "cupsdAuthorize: Authorized as %s using Digest",
-                   username);
-
-    con->type = CUPSD_AUTH_DIGEST;
-  }
 #ifdef HAVE_GSSAPI
-#  ifdef HAVE_KRB5_IPC_CLIENT_SET_TARGET_UID
-  else if (con->http.hostaddr->addr.sa_family == AF_LOCAL &&
-           !strncmp(authorization, "Negotiate", 9))
-  {
-   /*
-    * Pull the credentials directly from the user...
-    */
-
-    krb5_error_code    error;          /* Kerberos error code */
-    cupsd_ucred_t      peercred;       /* Peer credentials */
-    socklen_t          peersize;       /* Size of peer credentials */
-    krb5_ccache                peerccache;     /* Peer Kerberos credentials */
-    krb5_principal     peerprncpl;     /* Peer's default principal */
-    char               *peername;      /* Peer username */
-
-    peersize = sizeof(peercred);
-
-#    ifdef __APPLE__
-    if (getsockopt(con->http.fd, 0, LOCAL_PEERCRED, &peercred, &peersize))
-#    else
-    if (getsockopt(con->http.fd, SOL_SOCKET, SO_PEERCRED, &peercred, &peersize))
-#    endif /* __APPLE__ */
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get peer credentials - %s",
-                     strerror(errno));
-      return;
-    }
-
-    cupsdLogMessage(CUPSD_LOG_DEBUG,
-                   "cupsdAuthorize: Copying credentials for UID %d...",
-                   CUPSD_UCRED_UID(peercred));
-
-    if (!KerberosInitialized)
-    {
-     /*
-      * Setup a Kerberos context for the scheduler to use...
-      */
-
-      KerberosInitialized = 1;
-
-      if (krb5_init_context(&KerberosContext))
-      {
-       KerberosContext = NULL;
-
-       cupsdLogMessage(CUPSD_LOG_ERROR,
-                       "Unable to initialize Kerberos context");
-       return;
-      }
-    }
-
-    krb5_ipc_client_set_target_uid(CUPSD_UCRED_UID(peercred));
-
-    if ((error = krb5_cc_default(KerberosContext, &peerccache)) != 0)
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "Unable to get credentials cache for UID %d (%d/%s)",
-                     (int)CUPSD_UCRED_UID(peercred), error, strerror(errno));
-      krb5_ipc_client_clear_target();
-      return;
-    }
-
-    if ((error = krb5_cc_get_principal(KerberosContext, peerccache,
-                                       &peerprncpl)) != 0)
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "Unable to get Kerberos principal for UID %d",
-                     (int)CUPSD_UCRED_UID(peercred));
-      krb5_cc_close(KerberosContext, peerccache);
-      krb5_ipc_client_clear_target();
-      return;
-    }
-
-    if ((error = krb5_unparse_name(KerberosContext, peerprncpl,
-                                   &peername)) != 0)
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "Unable to get Kerberos name for UID %d",
-                     (int)CUPSD_UCRED_UID(peercred));
-      krb5_cc_close(KerberosContext, peerccache);
-      krb5_ipc_client_clear_target();
-      return;
-    }
-
-    strlcpy(username, peername, sizeof(username));
-
-    con->have_gss = 1;
-    con->type     = CUPSD_AUTH_NEGOTIATE;
-
-    free(peername);
-
-    cupsdLogMessage(CUPSD_LOG_DEBUG,
-                   "cupsdAuthorize: Authorized as %s using Negotiate",
-                   username);
-
-    krb5_cc_close(KerberosContext, peerccache);
-    krb5_ipc_client_clear_target();
-  }
-#  endif /* HAVE_KRB5_IPC_CLIENT_SET_TARGET_UID */
   else if (!strncmp(authorization, "Negotiate", 9))
   {
     int                        len;            /* Length of authorization string */
@@ -1096,17 +835,16 @@ cupsdAuthorize(cupsd_client_t *con)      /* I - Client connection */
     * to use it...
     */
 
-    if (gss_init_sec_context == NULL)
+    if (&gss_init_sec_context == NULL)
     {
       cupsdLogMessage(CUPSD_LOG_WARN,
-                      "GSSAPI/Kerberos authentication failed because the "
-                     "Kerberos framework is not present.");
+                      "[Client %d] GSSAPI/Kerberos authentication failed "
+                      "because the Kerberos framework is not present.",
+                      con->number);
       return;
     }
 #  endif /* __APPLE__ */
 
-    con->gss_output_token.length = 0;
-
    /*
     * Find the start of the Kerberos input token...
     */
@@ -1118,7 +856,8 @@ cupsdAuthorize(cupsd_client_t *con)        /* I - Client connection */
     if (!*authorization)
     {
       cupsdLogMessage(CUPSD_LOG_DEBUG2,
-                     "cupsdAuthorize: No authentication data specified.");
+                     "[Client %d] No authentication data specified.",
+                     con->number);
       return;
     }
 
@@ -1126,11 +865,11 @@ cupsdAuthorize(cupsd_client_t *con)      /* I - Client connection */
     * Decode the authorization string to get the input token...
     */
 
-    len                = strlen(authorization);
-    input_token.value  = malloc(len);
+    len                = (int)strlen(authorization);
+    input_token.value  = malloc((size_t)len);
     input_token.value  = httpDecode64_2(input_token.value, &len,
                                        authorization);
-    input_token.length = len;
+    input_token.length = (size_t)len;
 
    /*
     * Accept the input token to get the authorization info...
@@ -1140,21 +879,24 @@ cupsdAuthorize(cupsd_client_t *con)      /* I - Client connection */
     client_name  = GSS_C_NO_NAME;
     major_status = gss_accept_sec_context(&minor_status,
                                          &context,
-                                         GSS_C_NO_CREDENTIAL,
+                                         ServerCreds,
                                          &input_token,
                                          GSS_C_NO_CHANNEL_BINDINGS,
                                          &client_name,
                                          NULL,
-                                         &con->gss_output_token,
-                                         &con->gss_flags,
+                                         &output_token,
+                                         NULL,
                                          NULL,
-                                         &con->gss_creds);
+                                         NULL);
+
+    if (output_token.length > 0)
+      gss_release_buffer(&minor_status, &output_token);
 
     if (GSS_ERROR(major_status))
     {
       cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status,
-                        "cupsdAuthorize: Error accepting GSSAPI security "
-                        "context");
+                        "[Client %d] Error accepting GSSAPI security context",
+                        con->number);
 
       if (context != GSS_C_NO_CONTEXT)
        gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER);
@@ -1167,13 +909,9 @@ cupsdAuthorize(cupsd_client_t *con)       /* I - Client connection */
     * Get the username associated with the client's credentials...
     */
 
-    if (!con->gss_creds)
-      cupsdLogMessage(CUPSD_LOG_DEBUG,
-                     "cupsdAuthorize: No delegated credentials!");
-
     if (major_status == GSS_S_CONTINUE_NEEDED)
       cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status,
-                        "cupsdAuthorize: Credentials not complete");
+                        "[Client %d] Credentials not complete", con->number);
     else if (major_status == GSS_S_COMPLETE)
     {
       major_status = gss_display_name(&minor_status, client_name,
@@ -1182,8 +920,7 @@ cupsdAuthorize(cupsd_client_t *con)        /* I - Client connection */
       if (GSS_ERROR(major_status))
       {
        cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status,
-                          "cupsdAuthorize: Error getting username");
-       gss_release_cred(&minor_status, &con->gss_creds);
+                          "[Client %d] Error getting username", con->number);
        gss_release_name(&minor_status, &client_name);
        gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER);
        return;
@@ -1192,18 +929,50 @@ cupsdAuthorize(cupsd_client_t *con)      /* I - Client connection */
       strlcpy(username, output_token.value, sizeof(username));
 
       cupsdLogMessage(CUPSD_LOG_DEBUG,
-                     "cupsdAuthorize: Authorized as %s using Negotiate",
-                     username);
+                     "[Client %d] Authorized as %s using Negotiate",
+                     con->number, username);
 
       gss_release_name(&minor_status, &client_name);
       gss_release_buffer(&minor_status, &output_token);
 
       con->type = CUPSD_AUTH_NEGOTIATE;
     }
-    else
-      gss_release_cred(&minor_status, &con->gss_creds);
 
     gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER);
+
+#  if defined(SO_PEERCRED) && defined(AF_LOCAL)
+   /*
+    * Get the client's UID if we are printing locally - that allows a backend
+    * to run as the correct user to get Kerberos credentials of its own.
+    */
+
+    if (httpAddrFamily(con->http->hostaddr) == AF_LOCAL)
+    {
+      cupsd_ucred_t    peercred;       /* Peer credentials */
+      socklen_t                peersize;       /* Size of peer credentials */
+
+      peersize = sizeof(peercred);
+
+#    ifdef __APPLE__
+      if (getsockopt(httpGetFd(con->http), 0, LOCAL_PEERCRED, &peercred, &peersize))
+#    else
+      if (getsockopt(httpGetFd(con->http), SOL_SOCKET, SO_PEERCRED, &peercred,
+                     &peersize))
+#    endif /* __APPLE__ */
+      {
+       cupsdLogMessage(CUPSD_LOG_ERROR,
+                       "[Client %d] Unable to get peer credentials - %s",
+                       con->number, strerror(errno));
+      }
+      else
+      {
+       cupsdLogMessage(CUPSD_LOG_DEBUG,
+                       "[Client %d] Using credentials for UID %d.",
+                       con->number, CUPSD_UCRED_UID(peercred));
+        con->gss_uid = CUPSD_UCRED_UID(peercred);
+      }
+    }
+#  endif /* SO_PEERCRED && AF_LOCAL */
   }
 #endif /* HAVE_GSSAPI */
   else
@@ -1212,10 +981,11 @@ cupsdAuthorize(cupsd_client_t *con)      /* I - Client connection */
 
 
     if (sscanf(authorization, "%255s", scheme) != 1)
-      strcpy(scheme, "UNKNOWN");
+      strlcpy(scheme, "UNKNOWN", sizeof(scheme));
 
-    cupsdLogMessage(CUPSD_LOG_ERROR, "Bad authentication data \"%s ...\"",
-                    scheme);
+    cupsdLogMessage(CUPSD_LOG_ERROR,
+                    "[Client %d] Bad authentication data \"%s ...\"",
+                    con->number, scheme);
     return;
   }
 
@@ -1238,14 +1008,14 @@ cupsdAuthorize(cupsd_client_t *con)     /* I - Client connection */
 int                                    /* O - 1 if allowed, 0 otherwise */
 cupsdCheckAccess(
     unsigned         ip[4],            /* I - Client address */
-    char             *name,            /* I - Client hostname */
-    int              namelen,          /* I - Length of hostname */
+    const char       *name,            /* I - Client hostname */
+    size_t           namelen,          /* I - Length of hostname */
     cupsd_location_t *loc)             /* I - Location to check */
 {
   int  allow;                          /* 1 if allowed, 0 otherwise */
 
 
-  if (!strcasecmp(name, "localhost"))
+  if (!_cups_strcasecmp(name, "localhost"))
   {
    /*
     * Access from localhost (127.0.0.1 or ::1) is always allowed...
@@ -1297,8 +1067,8 @@ cupsdCheckAccess(
 
 int                                    /* O - 1 if mask matches, 0 otherwise */
 cupsdCheckAuth(unsigned     ip[4],     /* I - Client address */
-              char         *name,      /* I - Client hostname */
-              int          name_len,   /* I - Length of hostname */
+              const char   *name,      /* I - Client hostname */
+              size_t       name_len,   /* I - Length of hostname */
               cups_array_t *masks)     /* I - Masks */
 {
   int                  i;              /* Looping var */
@@ -1330,6 +1100,8 @@ cupsdCheckAuth(unsigned     ip[4],        /* I - Client address */
           netip6[3] = htonl(ip[3]);
 #endif /* AF_INET6 */
 
+         cupsdNetIFUpdate();
+
           if (!strcmp(mask->mask.name.name, "*"))
          {
 #ifdef __APPLE__
@@ -1345,8 +1117,6 @@ cupsdCheckAuth(unsigned     ip[4],        /* I - Client address */
            * Check against all local interfaces...
            */
 
-            cupsdNetIFUpdate();
-
            for (iface = (cupsd_netif_t *)cupsArrayFirst(NetIFList);
                 iface;
                 iface = (cupsd_netif_t *)cupsArrayNext(NetIFList))
@@ -1438,7 +1208,7 @@ cupsdCheckAuth(unsigned     ip[4],        /* I - Client address */
          * Check for exact name match...
          */
 
-          if (!strcasecmp(name, mask->mask.name.name))
+          if (!_cups_strcasecmp(name, mask->mask.name.name))
            return (1);
 
          /*
@@ -1447,7 +1217,7 @@ cupsdCheckAuth(unsigned     ip[4],        /* I - Client address */
 
          if (name_len >= mask->mask.name.length &&
              mask->mask.name.name[0] == '.' &&
-             !strcasecmp(name + name_len - mask->mask.name.length,
+             !_cups_strcasecmp(name + name_len - mask->mask.name.length,
                          mask->mask.name.name))
            return (1);
           break;
@@ -1484,7 +1254,6 @@ cupsdCheckGroup(
 {
   int          i;                      /* Looping var */
   struct group *group;                 /* System group info */
-  char         junk[33];               /* MD5 password (not used) */
 #ifdef HAVE_MBR_UID_TO_UUID
   uuid_t       useruuid,               /* UUID for username */
                groupuuid;              /* UUID for groupname */
@@ -1517,7 +1286,7 @@ cupsdCheckGroup(
     */
 
     for (i = 0; group->gr_mem[i]; i ++)
-      if (!strcasecmp(username, group->gr_mem[i]))
+      if (!_cups_strcasecmp(username, group->gr_mem[i]))
        return (1);
   }
 
@@ -1570,15 +1339,6 @@ cupsdCheckGroup(
     return (0);
 #endif /* HAVE_MBR_UID_TO_UUID */
 
- /*
-  * Username not found, group not found, or user is not part of the
-  * system group...  Check for a user and group in the MD5 password
-  * file...
-  */
-
-  if (get_md5_password(username, groupname, junk) != NULL)
-    return (1);
-
  /*
   * If we get this far, then the user isn't part of the named group...
   */
@@ -1587,178 +1347,6 @@ cupsdCheckGroup(
 }
 
 
-#ifdef HAVE_GSSAPI
-/*
- * 'cupsdCopyKrb5Creds()' - Get a copy of the Kerberos credentials.
- */
-
-krb5_ccache                            /* O - Credentials or NULL */
-cupsdCopyKrb5Creds(cupsd_client_t *con)        /* I - Client connection */
-{
-#  if !defined(HAVE_KRB5_CC_NEW_UNIQUE) && !defined(HAVE_HEIMDAL)
-  cupsdLogMessage(CUPSD_LOG_INFO,
-                  "Sorry, your version of Kerberos does not support delegated "
-                 "credentials!");
-  return (NULL);
-
-#  else
-  krb5_ccache          ccache = NULL;  /* Credentials */
-  krb5_error_code      error;          /* Kerberos error code */
-  OM_uint32            major_status,   /* Major status code */
-                       minor_status;   /* Minor status code */
-  krb5_principal       principal;      /* Kerberos principal */
-
-
-#    ifdef __APPLE__
- /*
-  * If the weak-linked GSSAPI/Kerberos library is not present, don't try
-  * to use it...
-  */
-
-  if (krb5_init_context == NULL)
-    return (NULL);
-#    endif /* __APPLE__ */
-
-  if (!KerberosInitialized)
-  {
-   /*
-    * Setup a Kerberos context for the scheduler to use...
-    */
-
-    KerberosInitialized = 1;
-
-    if (krb5_init_context(&KerberosContext))
-    {
-      KerberosContext = NULL;
-
-      cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to initialize Kerberos context");
-      return (NULL);
-    }
-  }
-
- /*
-  * We MUST create a file-based cache because memory-based caches are
-  * only valid for the current process/address space.
-  *
-  * Due to various bugs/features in different versions of Kerberos, we
-  * need either the krb5_cc_new_unique() function or Heimdal's version
-  * of krb5_cc_gen_new() to create a new FILE: credential cache that
-  * can be passed to the backend.  These functions create a temporary
-  * file (typically in /tmp) containing the cached credentials, which
-  * are removed when we have successfully printed a job.
-  */
-
-#    ifdef HAVE_KRB5_CC_NEW_UNIQUE
-  if ((error = krb5_cc_new_unique(KerberosContext, "FILE", NULL, &ccache)) != 0)
-#    else /* HAVE_HEIMDAL */
-  if ((error = krb5_cc_gen_new(KerberosContext, &krb5_fcc_ops, &ccache)) != 0)
-#    endif /* HAVE_KRB5_CC_NEW_UNIQUE */
-  {
-    cupsdLogMessage(CUPSD_LOG_ERROR,
-                    "Unable to create new credentials cache (%d/%s)",
-                    error, strerror(errno));
-    return (NULL);
-  }
-
-  if ((error = krb5_parse_name(KerberosContext, con->username, &principal)) != 0)
-  {
-    cupsdLogMessage(CUPSD_LOG_ERROR,
-                    "Unable to parse kerberos username (%d/%s)", error,
-                    strerror(errno));
-    krb5_cc_destroy(KerberosContext, ccache);
-    return (NULL);
-  }
-
-  if ((error = krb5_cc_initialize(KerberosContext, ccache, principal)))
-  {
-    cupsdLogMessage(CUPSD_LOG_ERROR,
-                    "Unable to initialize credentials cache (%d/%s)", error,
-                   strerror(errno));
-    krb5_cc_destroy(KerberosContext, ccache);
-    krb5_free_principal(KerberosContext, principal);
-    return (NULL);
-  }
-
-  krb5_free_principal(KerberosContext, principal);
-
- /*
-  * Copy the user's credentials to the new cache file...
-  */
-
-#    ifdef HAVE_KRB5_IPC_CLIENT_SET_TARGET_UID
-  if (con->http.hostaddr->addr.sa_family == AF_LOCAL &&
-      !(con->gss_flags & GSS_C_DELEG_FLAG))
-  {
-   /*
-    * Pull the credentials directly from the user...
-    */
-
-    cupsd_ucred_t      peercred;       /* Peer credentials */
-    socklen_t          peersize;       /* Size of peer credentials */
-    krb5_ccache                peerccache;     /* Peer Kerberos credentials */
-
-    peersize = sizeof(peercred);
-
-#      ifdef __APPLE__
-    if (getsockopt(con->http.fd, 0, LOCAL_PEERCRED, &peercred, &peersize))
-#      else
-    if (getsockopt(con->http.fd, SOL_SOCKET, SO_PEERCRED, &peercred, &peersize))
-#      endif /* __APPLE__ */
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get peer credentials - %s",
-                      strerror(errno));
-      krb5_cc_destroy(KerberosContext, ccache);
-      return (NULL);
-    }
-
-    cupsdLogMessage(CUPSD_LOG_DEBUG,
-                    "cupsdCopyKrb5Creds: Copying credentials for UID %d...",
-                   CUPSD_UCRED_UID(peercred));
-
-    krb5_ipc_client_set_target_uid(CUPSD_UCRED_UID(peercred));
-
-    if ((error = krb5_cc_default(KerberosContext, &peerccache)) != 0)
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "Unable to get credentials cache for UID %d (%d/%s)",
-                     (int)CUPSD_UCRED_UID(peercred), error, strerror(errno));
-      krb5_cc_destroy(KerberosContext, ccache);
-      return (NULL);
-    }
-
-    error = krb5_cc_copy_creds(KerberosContext, peerccache, ccache);
-    krb5_cc_close(KerberosContext, peerccache);
-    krb5_ipc_client_clear_target();
-
-    if (error)
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR,
-                     "Unable to copy credentials cache for UID %d (%d/%s)",
-                     (int)CUPSD_UCRED_UID(peercred), error, strerror(errno));
-      krb5_cc_destroy(KerberosContext, ccache);
-      return (NULL);
-    }
-  }
-  else
-#    endif /* HAVE_KRB5_IPC_CLIENT_SET_TARGET_UID */
-  {
-    major_status = gss_krb5_copy_ccache(&minor_status, con->gss_creds, ccache);
-
-    if (GSS_ERROR(major_status))
-    {
-      cupsdLogGSSMessage(CUPSD_LOG_ERROR, major_status, minor_status,
-                        "Unable to copy client credentials cache");
-      krb5_cc_destroy(KerberosContext, ccache);
-      return (NULL);
-    }
-  }
-
-  return (ccache);
-#  endif /* !HAVE_KRB5_CC_NEW_UNIQUE && !HAVE_HEIMDAL */
-}
-#endif /* HAVE_GSSAPI */
-
-
 /*
  * 'cupsdCopyLocation()' - Make a copy of a location...
  */
@@ -1787,6 +1375,7 @@ cupsdCopyLocation(
   if (loc->location)
     temp->location = _cupsStrAlloc(loc->location);
 
+  temp->length     = loc->length;
   temp->limit      = loc->limit;
   temp->order_type = loc->order_type;
   temp->type       = loc->type;
@@ -1872,7 +1461,7 @@ cupsdFindBest(const char   *path, /* I - Resource path */
                        *uriptr;        /* Pointer into URI */
   cupsd_location_t     *loc,           /* Current location */
                        *best;          /* Best match for location so far */
-  int                  bestlen;        /* Length of best match */
+  size_t               bestlen;        /* Length of best match */
   int                  limit;          /* Limit field */
   static const int     limits[] =      /* Map http_status_t to CUPSD_AUTH_LIMIT_xyz */
                {
@@ -1889,6 +1478,8 @@ cupsdFindBest(const char   *path, /* I - Resource path */
                  CUPSD_AUTH_LIMIT_DELETE,
                  CUPSD_AUTH_LIMIT_TRACE,
                  CUPSD_AUTH_LIMIT_ALL,
+                 CUPSD_AUTH_LIMIT_ALL,
+                 CUPSD_AUTH_LIMIT_ALL,
                  CUPSD_AUTH_LIMIT_ALL
                };
 
@@ -1914,7 +1505,11 @@ cupsdFindBest(const char   *path,        /* I - Resource path */
       *uriptr = '\0';
   }
 
-  cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: uri = \"%s\"...", uri);
+  if ((uriptr = strchr(uri, '?')) != NULL)
+    *uriptr = '\0';            /* Drop trailing query string */
+
+  if ((uriptr = uri + strlen(uri) - 1) > uri && *uriptr == '/')
+    *uriptr = '\0';            /* Remove trailing '/' */
 
  /*
   * Loop through the list of locations to find a match...
@@ -1924,12 +1519,14 @@ cupsdFindBest(const char   *path,       /* I - Resource path */
   best    = NULL;
   bestlen = 0;
 
+  cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: uri = \"%s\", limit=%x...", uri, limit);
+
+
   for (loc = (cupsd_location_t *)cupsArrayFirst(Locations);
        loc;
        loc = (cupsd_location_t *)cupsArrayNext(Locations))
   {
-    cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: Location %s Limit %x",
-                    loc->location ? loc->location : "nil", loc->limit);
+    cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdFindBest: Location %s(%d) Limit %x", loc->location ? loc->location : "(null)", (int)loc->length, loc->limit);
 
     if (!strncmp(uri, "/printers/", 10) || !strncmp(uri, "/classes/", 9))
     {
@@ -1938,7 +1535,7 @@ cupsdFindBest(const char   *path, /* I - Resource path */
       */
 
       if (loc->length > bestlen && loc->location &&
-          !strncasecmp(uri, loc->location, loc->length) &&
+          !_cups_strncasecmp(uri, loc->location, loc->length) &&
          loc->location[0] == '/' &&
          (limit & loc->limit) != 0)
       {
@@ -2017,9 +1614,13 @@ cupsdIsAuthorized(cupsd_client_t *con,   /* I - Connection */
   int                  i,              /* Looping vars */
                        auth,           /* Authorization status */
                        type;           /* Type of authentication */
+  http_addr_t          *hostaddr = httpGetAddress(con->http);
+                                       /* Client address */
+  const char           *hostname = httpGetHostname(con->http, NULL, 0);
+                                       /* Client hostname */
   unsigned             address[4];     /* Authorization address */
   cupsd_location_t     *best;          /* Best match for location so far */
-  int                  hostlen;        /* Length of hostname */
+  size_t               hostlen;        /* Length of hostname */
   char                 *name,          /* Current username */
                        username[256],  /* Username to authorize */
                        ownername[256], /* Owner name to authorize */
@@ -2035,8 +1636,6 @@ cupsdIsAuthorized(cupsd_client_t *con,    /* I - Connection */
                {
                  "None",
                  "Basic",
-                 "Digest",
-                 "BasicDigest",
                  "Negotiate"
                };
 
@@ -2057,8 +1656,9 @@ cupsdIsAuthorized(cupsd_client_t *con,    /* I - Connection */
 
   if (!con->best)
   {
-    if (!strcmp(con->http.hostname, "localhost") ||
-        !strcmp(con->http.hostname, ServerName))
+    if (httpAddrLocalhost(httpGetAddress(con->http)) ||
+        !strcmp(hostname, ServerName) ||
+       cupsArrayFind(ServerAlias, (void *)hostname))
       return (HTTP_OK);
     else
       return (HTTP_FORBIDDEN);
@@ -2067,7 +1667,7 @@ cupsdIsAuthorized(cupsd_client_t *con,    /* I - Connection */
   best = con->best;
 
   if ((type = best->type) == CUPSD_AUTH_DEFAULT)
-    type = DefaultAuthType;
+    type = cupsdDefaultAuthType();
 
   cupsdLogMessage(CUPSD_LOG_DEBUG2,
                   "cupsdIsAuthorized: level=CUPSD_AUTH_%s, type=%s, "
@@ -2084,20 +1684,20 @@ cupsdIsAuthorized(cupsd_client_t *con,  /* I - Connection */
   */
 
 #ifdef AF_INET6
-  if (con->http.hostaddr->addr.sa_family == AF_INET6)
+  if (httpAddrFamily(hostaddr) == AF_INET6)
   {
    /*
     * Copy IPv6 address...
     */
 
-    address[0] = ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[0]);
-    address[1] = ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[1]);
-    address[2] = ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2]);
-    address[3] = ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[3]);
+    address[0] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[0]);
+    address[1] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[1]);
+    address[2] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[2]);
+    address[3] = ntohl(hostaddr->ipv6.sin6_addr.s6_addr32[3]);
   }
   else
 #endif /* AF_INET6 */
-  if (con->http.hostaddr->addr.sa_family == AF_INET)
+  if (con->http->hostaddr->addr.sa_family == AF_INET)
   {
    /*
     * Copy IPv4 address...
@@ -2106,14 +1706,14 @@ cupsdIsAuthorized(cupsd_client_t *con,  /* I - Connection */
     address[0] = 0;
     address[1] = 0;
     address[2] = 0;
-    address[3] = ntohl(con->http.hostaddr->ipv4.sin_addr.s_addr);
+    address[3] = ntohl(hostaddr->ipv4.sin_addr.s_addr);
   }
   else
     memset(address, 0, sizeof(address));
 
-  hostlen = strlen(con->http.hostname);
+  hostlen = strlen(hostname);
 
-  auth = cupsdCheckAccess(address, con->http.hostname, hostlen, best)
+  auth = cupsdCheckAccess(address, hostname, hostlen, best)
              ? CUPSD_AUTH_ALLOW : CUPSD_AUTH_DENY;
 
   cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: auth=CUPSD_AUTH_%s...",
@@ -2127,11 +1727,13 @@ cupsdIsAuthorized(cupsd_client_t *con,  /* I - Connection */
   * See if encryption is required...
   */
 
-  if ((best->encryption >= HTTP_ENCRYPT_REQUIRED && !con->http.tls &&
-      strcasecmp(con->http.hostname, "localhost") &&
+  if ((best->encryption >= HTTP_ENCRYPT_REQUIRED && !con->http->tls &&
+      _cups_strcasecmp(hostname, "localhost") &&
+      !httpAddrLocalhost(hostaddr) &&
       best->satisfy == CUPSD_AUTH_SATISFY_ALL) &&
       !(type == CUPSD_AUTH_NEGOTIATE ||
-        (type == CUPSD_AUTH_NONE && DefaultAuthType == CUPSD_AUTH_NEGOTIATE)))
+        (type == CUPSD_AUTH_NONE &&
+         cupsdDefaultAuthType() == CUPSD_AUTH_NEGOTIATE)))
   {
     cupsdLogMessage(CUPSD_LOG_DEBUG,
                     "cupsdIsAuthorized: Need upgrade to TLS...");
@@ -2187,10 +1789,14 @@ cupsdIsAuthorized(cupsd_client_t *con,  /* I - Connection */
        return (HTTP_OK);               /* unless overridden with Satisfy */
     }
 
+
     if (con->type != type && type != CUPSD_AUTH_NONE &&
-        (con->type != CUPSD_AUTH_BASIC || type != CUPSD_AUTH_BASICDIGEST))
+#ifdef HAVE_GSSAPI
+        (type != CUPSD_AUTH_NEGOTIATE || con->gss_uid <= 0) &&
+#endif /* HAVE_GSSAPI */
+        con->type != CUPSD_AUTH_BASIC)
     {
-      cupsdLogMessage(CUPSD_LOG_ERROR, "Authorized using %s, expected %s!",
+      cupsdLogMessage(CUPSD_LOG_ERROR, "Authorized using %s, expected %s.",
                       types[con->type], types[type]);
 
       return (HTTP_UNAUTHORIZED);
@@ -2265,9 +1871,9 @@ cupsdIsAuthorized(cupsd_client_t *con,    /* I - Connection */
            name;
           name = (char *)cupsArrayNext(best->names))
       {
-       if (!strncasecmp(name, "@AUTHKEY(", 9) && check_authref(con, name + 9))
+       if (!_cups_strncasecmp(name, "@AUTHKEY(", 9) && check_authref(con, name + 9))
          return (HTTP_OK);
-       else if (!strcasecmp(name, "@SYSTEM") && SystemGroupAuthKey &&
+       else if (!_cups_strcasecmp(name, "@SYSTEM") && SystemGroupAuthKey &&
                 check_authref(con, SystemGroupAuthKey))
          return (HTTP_OK);
       }
@@ -2280,10 +1886,10 @@ cupsdIsAuthorized(cupsd_client_t *con,  /* I - Connection */
         name;
         name = (char *)cupsArrayNext(best->names))
     {
-      if (!strcasecmp(name, "@OWNER") && owner &&
-          !strcasecmp(username, ownername))
+      if (!_cups_strcasecmp(name, "@OWNER") && owner &&
+          !_cups_strcasecmp(username, ownername))
        return (HTTP_OK);
-      else if (!strcasecmp(name, "@SYSTEM"))
+      else if (!_cups_strcasecmp(name, "@SYSTEM"))
       {
         for (i = 0; i < NumSystemGroups; i ++)
          if (cupsdCheckGroup(username, pw, SystemGroups[i]))
@@ -2294,11 +1900,11 @@ cupsdIsAuthorized(cupsd_client_t *con,  /* I - Connection */
         if (cupsdCheckGroup(username, pw, name + 1))
           return (HTTP_OK);
       }
-      else if (!strcasecmp(username, name))
+      else if (!_cups_strcasecmp(username, name))
         return (HTTP_OK);
     }
 
-    return (HTTP_FORBIDDEN);
+    return (con->username[0] ? HTTP_FORBIDDEN : HTTP_UNAUTHORIZED);
   }
 
  /*
@@ -2320,7 +1926,7 @@ cupsdIsAuthorized(cupsd_client_t *con,    /* I - Connection */
                     "cupsdIsAuthorized: Checking group \"%s\" membership...",
                     name);
 
-    if (!strcasecmp(name, "@SYSTEM"))
+    if (!_cups_strcasecmp(name, "@SYSTEM"))
     {
       for (i = 0; i < NumSystemGroups; i ++)
        if (cupsdCheckGroup(username, pw, SystemGroups[i]))
@@ -2337,7 +1943,7 @@ cupsdIsAuthorized(cupsd_client_t *con,    /* I - Connection */
   cupsdLogMessage(CUPSD_LOG_DEBUG,
                   "cupsdIsAuthorized: User not in group(s)!");
 
-  return (HTTP_FORBIDDEN);
+  return (con->username[0] ? HTTP_FORBIDDEN : HTTP_UNAUTHORIZED);
 }
 
 
@@ -2485,7 +2091,7 @@ copy_authmask(cupsd_authmask_t *mask,     /* I - Existing auth mask */
 }
 
 
-#if !HAVE_LIBPAM && !defined(HAVE_USERSEC_H)
+#if !HAVE_LIBPAM
 /*
  * 'cups_crypt()' - Encrypt the password using the DES or MD5 algorithms,
  *                  as needed.
@@ -2574,23 +2180,23 @@ cups_crypt(const char *pw,              /* I - Password string */
     * Copy the final sum to the result string and return...
     */
 
-    memcpy(result, salt, salt_end - salt);
+    memcpy(result, salt, (size_t)(salt_end - salt));
     ptr = result + (salt_end - salt);
     *ptr++ = '$';
 
     for (i = 0; i < 5; i ++, ptr += 4)
     {
-      n = (((digest[i] << 8) | digest[i + 6]) << 8);
+      n = ((((unsigned)digest[i] << 8) | (unsigned)digest[i + 6]) << 8);
 
       if (i < 4)
-        n |= digest[i + 12];
+        n |= (unsigned)digest[i + 12];
       else
-        n |= digest[5];
+        n |= (unsigned)digest[5];
 
       to64(ptr, n, 4);
     }
 
-    to64(ptr, digest[11], 2);
+    to64(ptr, (unsigned)digest[11], 2);
     ptr += 2;
     *ptr = '\0';
 
@@ -2605,7 +2211,7 @@ cups_crypt(const char *pw,                /* I - Password string */
     return (crypt(pw, salt));
   }
 }
-#endif /* !HAVE_LIBPAM && !HAVE_USERSEC_H */
+#endif /* !HAVE_LIBPAM */
 
 
 /*
@@ -2625,68 +2231,6 @@ free_authmask(cupsd_authmask_t *mask,    /* I - Auth mask to free */
 }
 
 
-/*
- * 'get_md5_password()' - Get an MD5 password.
- */
-
-static char *                          /* O - MD5 password string */
-get_md5_password(const char *username, /* I - Username */
-                 const char *group,    /* I - Group */
-                 char       passwd[33])        /* O - MD5 password string */
-{
-  cups_file_t  *fp;                    /* passwd.md5 file */
-  char         filename[1024],         /* passwd.md5 filename */
-               line[256],              /* Line from file */
-               tempuser[33],           /* User from file */
-               tempgroup[33];          /* Group from file */
-
-
-  cupsdLogMessage(CUPSD_LOG_DEBUG2,
-                  "get_md5_password(username=\"%s\", group=\"%s\", passwd=%p)",
-                  username, group ? group : "(null)", passwd);
-
-  snprintf(filename, sizeof(filename), "%s/passwd.md5", ServerRoot);
-  if ((fp = cupsFileOpen(filename, "r")) == NULL)
-  {
-    if (errno != ENOENT)
-      cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open %s - %s", filename,
-                      strerror(errno));
-
-    return (NULL);
-  }
-
-  while (cupsFileGets(fp, line, sizeof(line)) != NULL)
-  {
-    if (sscanf(line, "%32[^:]:%32[^:]:%32s", tempuser, tempgroup, passwd) != 3)
-    {
-      cupsdLogMessage(CUPSD_LOG_ERROR, "Bad MD5 password line: %s", line);
-      continue;
-    }
-
-    if (!strcmp(username, tempuser) &&
-        (group == NULL || !strcmp(group, tempgroup)))
-    {
-     /*
-      * Found the password entry!
-      */
-
-      cupsdLogMessage(CUPSD_LOG_DEBUG2, "Found MD5 user %s, group %s...",
-                      username, tempgroup);
-
-      cupsFileClose(fp);
-      return (passwd);
-    }
-  }
-
- /*
-  * Didn't find a password entry - return NULL!
-  */
-
-  cupsFileClose(fp);
-  return (NULL);
-}
-
-
 #if HAVE_LIBPAM
 /*
  * 'pam_func()' - PAM conversation function.
@@ -2709,7 +2253,7 @@ pam_func(
   * Allocate memory for the responses...
   */
 
-  if ((replies = malloc(sizeof(struct pam_response) * num_msg)) == NULL)
+  if ((replies = malloc(sizeof(struct pam_response) * (size_t)num_msg)) == NULL)
     return (PAM_CONV_ERR);
 
  /*
@@ -2718,17 +2262,7 @@ pam_func(
 
   DEBUG_printf(("pam_func: appdata_ptr = %p\n", appdata_ptr));
 
-#ifdef __hpux
- /*
-  * Apparently some versions of HP-UX 11 have a broken pam_unix security
-  * module.  This is a workaround...
-  */
-
-  data = auth_data;
-  (void)appdata_ptr;
-#else
   data = (cupsd_authdata_t *)appdata_ptr;
-#endif /* __hpux */
 
   for (i = 0; i < num_msg; i ++)
   {
@@ -2778,7 +2312,7 @@ pam_func(
 
   return (PAM_SUCCESS);
 }
-#elif !defined(HAVE_USERSEC_H)
+#else
 
 
 /*
@@ -2802,5 +2336,5 @@ to64(char          *s,                    /* O - Output string */
 
 
 /*
- * End of "$Id: auth.c 7830 2008-08-04 20:38:50Z mike $".
+ * End of "$Id: auth.c 12604 2015-05-06 01:43:05Z msweet $".
  */