2 * "$Id: auth.c 7720 2008-07-11 22:46:21Z mike $"
4 * Authentication functions for CUPS.
6 * Copyright 2007-2012 by Apple Inc.
7 * Copyright 1997-2007 by Easy Software Products.
9 * This file contains Kerberos support code, copyright 2006 by
12 * These coded instructions, statements, and computer programs are the
13 * property of Apple Inc. and are protected by Federal copyright
14 * law. Distribution and use rights are outlined in the file "LICENSE.txt"
15 * which should have been included with this file. If this file is
16 * file is missing or damaged, see the license at "http://www.cups.org/".
18 * This file is subject to the Apple OS-Developed Software exception.
22 * cupsDoAuthentication() - Authenticate a request.
23 * _cupsSetNegotiateAuthString() - Set the Kerberos authentication string.
24 * cups_gss_acquire() - Kerberos credentials callback.
25 * cups_gss_getname() - Get CUPS service credentials for
27 * cups_gss_printf() - Show debug error messages from GSSAPI.
28 * cups_local_auth() - Get the local authorization certificate if
29 * available/applicable.
33 * Include necessary headers...
36 #include "cups-private.h"
39 #if defined(WIN32) || defined(__EMX__)
43 #endif /* WIN32 || __EMX__ */
45 #if HAVE_AUTHORIZATION_H
46 # include <Security/Authorization.h>
47 # ifdef HAVE_SECBASEPRIV_H
48 # include <Security/SecBasePriv.h>
50 extern const char *cssmErrorString(int error
);
51 # endif /* HAVE_SECBASEPRIV_H */
52 #endif /* HAVE_AUTHORIZATION_H */
54 #if defined(SO_PEERCRED) && defined(AF_LOCAL)
56 #endif /* SO_PEERCRED && AF_LOCAL */
64 # ifdef HAVE_GSS_ACQUIRE_CRED_EX_F
65 # ifdef HAVE_GSS_GSSAPI_SPI_H
66 # include <GSS/gssapi_spi.h>
68 # define GSS_AUTH_IDENTITY_TYPE_1 1
69 # define gss_acquire_cred_ex_f __ApplePrivate_gss_acquire_cred_ex_f
70 typedef struct gss_auth_identity
77 gss_buffer_t
*credentialsRef
;
78 } gss_auth_identity_desc
;
79 extern OM_uint32
gss_acquire_cred_ex_f(gss_status_id_t
, const gss_name_t
,
80 OM_uint32
, OM_uint32
, const gss_OID
,
81 gss_cred_usage_t
, gss_auth_identity_t
,
82 void *, void (*)(void *, OM_uint32
,
87 # endif /* HAVE_GSS_GSSAPI_SPI_H */
88 # include <dispatch/dispatch.h>
89 typedef struct _cups_gss_acquire_s
/* Acquire callback data */
91 dispatch_semaphore_t sem
; /* Synchronization semaphore */
92 OM_uint32 major
; /* Returned status code */
93 gss_cred_id_t creds
; /* Returned credentials */
94 } _cups_gss_acquire_t
;
96 static void cups_gss_acquire(void *ctx
, OM_uint32 major
,
97 gss_status_id_t status
,
98 gss_cred_id_t creds
, gss_OID_set oids
,
100 # endif /* HAVE_GSS_ACQUIRE_CRED_EX_F */
101 static gss_name_t
cups_gss_getname(http_t
*http
, const char *service_name
);
103 static void cups_gss_printf(OM_uint32 major_status
, OM_uint32 minor_status
,
104 const char *message
);
106 # define cups_gss_printf(major, minor, message)
108 #endif /* HAVE_GSSAPI */
109 static int cups_local_auth(http_t
*http
);
113 * 'cupsDoAuthentication()' - Authenticate a request.
115 * This function should be called in response to a @code HTTP_UNAUTHORIZED@
116 * status, prior to resubmitting your request.
118 * @since CUPS 1.1.20/OS X 10.4@
121 int /* O - 0 on success, -1 on error */
122 cupsDoAuthentication(
123 http_t
*http
, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
124 const char *method
, /* I - Request method ("GET", "POST", "PUT") */
125 const char *resource
) /* I - Resource path */
127 const char *password
, /* Password string */
128 *www_auth
; /* WWW-Authenticate header */
129 char prompt
[1024], /* Prompt for user */
130 realm
[HTTP_MAX_VALUE
], /* realm="xyz" string */
131 nonce
[HTTP_MAX_VALUE
]; /* nonce="xyz" string */
132 int localauth
; /* Local authentication result */
133 _cups_globals_t
*cg
; /* Global data */
136 DEBUG_printf(("cupsDoAuthentication(http=%p, method=\"%s\", resource=\"%s\")",
137 http
, method
, resource
));
140 http
= _cupsConnect();
142 if (!http
|| !method
|| !resource
)
145 DEBUG_printf(("2cupsDoAuthentication: digest_tries=%d, userpass=\"%s\"",
146 http
->digest_tries
, http
->userpass
));
147 DEBUG_printf(("2cupsDoAuthentication: WWW-Authenticate=\"%s\"",
148 httpGetField(http
, HTTP_FIELD_WWW_AUTHENTICATE
)));
151 * Clear the current authentication string...
154 httpSetAuthString(http
, NULL
, NULL
);
157 * See if we can do local authentication...
160 if (http
->digest_tries
< 3)
162 if ((localauth
= cups_local_auth(http
)) == 0)
164 DEBUG_printf(("2cupsDoAuthentication: authstring=\"%s\"",
167 if (http
->status
== HTTP_UNAUTHORIZED
)
168 http
->digest_tries
++;
172 else if (localauth
== -1)
174 http
->status
= HTTP_AUTHORIZATION_CANCELED
;
175 return (-1); /* Error or canceled */
180 * Nope, see if we should retry the current username:password...
183 www_auth
= http
->fields
[HTTP_FIELD_WWW_AUTHENTICATE
];
185 if ((http
->digest_tries
> 1 || !http
->userpass
[0]) &&
186 (!_cups_strncasecmp(www_auth
, "Basic", 5) ||
187 !_cups_strncasecmp(www_auth
, "Digest", 6)))
190 * Nope - get a new password from the user...
195 if (!cg
->lang_default
)
196 cg
->lang_default
= cupsLangDefault();
198 snprintf(prompt
, sizeof(prompt
),
199 _cupsLangString(cg
->lang_default
, _("Password for %s on %s? ")),
201 http
->hostname
[0] == '/' ? "localhost" : http
->hostname
);
203 http
->digest_tries
= _cups_strncasecmp(www_auth
, "Digest", 6) != 0;
204 http
->userpass
[0] = '\0';
206 if ((password
= cupsGetPassword2(prompt
, http
, method
, resource
)) == NULL
)
208 http
->status
= HTTP_AUTHORIZATION_CANCELED
;
212 snprintf(http
->userpass
, sizeof(http
->userpass
), "%s:%s", cupsUser(),
215 else if (http
->status
== HTTP_UNAUTHORIZED
)
216 http
->digest_tries
++;
218 if (http
->status
== HTTP_UNAUTHORIZED
&& http
->digest_tries
>= 3)
220 DEBUG_printf(("1cupsDoAuthentication: Too many authentication tries (%d)",
221 http
->digest_tries
));
223 http
->status
= HTTP_AUTHORIZATION_CANCELED
;
228 * Got a password; encode it for the server...
232 if (!_cups_strncasecmp(www_auth
, "Negotiate", 9))
235 * Kerberos authentication...
238 if (_cupsSetNegotiateAuthString(http
, method
, resource
))
240 http
->status
= HTTP_AUTHORIZATION_CANCELED
;
245 #endif /* HAVE_GSSAPI */
246 if (!_cups_strncasecmp(www_auth
, "Basic", 5))
249 * Basic authentication...
252 char encode
[256]; /* Base64 buffer */
255 httpEncode64_2(encode
, sizeof(encode
), http
->userpass
,
256 (int)strlen(http
->userpass
));
257 httpSetAuthString(http
, "Basic", encode
);
259 else if (!_cups_strncasecmp(www_auth
, "Digest", 6))
262 * Digest authentication...
265 char encode
[33], /* MD5 buffer */
266 digest
[1024]; /* Digest auth data */
269 httpGetSubField(http
, HTTP_FIELD_WWW_AUTHENTICATE
, "realm", realm
);
270 httpGetSubField(http
, HTTP_FIELD_WWW_AUTHENTICATE
, "nonce", nonce
);
272 httpMD5(cupsUser(), realm
, strchr(http
->userpass
, ':') + 1, encode
);
273 httpMD5Final(nonce
, method
, resource
, encode
);
274 snprintf(digest
, sizeof(digest
),
275 "username=\"%s\", realm=\"%s\", nonce=\"%s\", uri=\"%s\", "
276 "response=\"%s\"", cupsUser(), realm
, nonce
, resource
, encode
);
277 httpSetAuthString(http
, "Digest", digest
);
281 DEBUG_printf(("1cupsDoAuthentication: Unknown auth type: \"%s\"",
283 http
->status
= HTTP_AUTHORIZATION_CANCELED
;
287 DEBUG_printf(("1cupsDoAuthentication: authstring=\"%s\"", http
->authstring
));
295 * '_cupsSetNegotiateAuthString()' - Set the Kerberos authentication string.
298 int /* O - 0 on success, -1 on error */
299 _cupsSetNegotiateAuthString(
300 http_t
*http
, /* I - Connection to server */
301 const char *method
, /* I - Request method ("GET", "POST", "PUT") */
302 const char *resource
) /* I - Resource path */
304 OM_uint32 minor_status
, /* Minor status code */
305 major_status
; /* Major status code */
306 gss_buffer_desc output_token
= GSS_C_EMPTY_BUFFER
;
315 * If the weak-linked GSSAPI/Kerberos library is not present, don't try
319 if (gss_init_sec_context
== NULL
)
321 DEBUG_puts("1_cupsSetNegotiateAuthString: Weak-linked GSSAPI/Kerberos "
322 "framework is not present");
325 # endif /* __APPLE__ */
327 if (http
->gssname
== GSS_C_NO_NAME
)
329 http
->gssname
= cups_gss_getname(http
, _cupsGSSServiceName());
332 if (http
->gssctx
!= GSS_C_NO_CONTEXT
)
334 gss_delete_sec_context(&minor_status
, &http
->gssctx
, GSS_C_NO_BUFFER
);
335 http
->gssctx
= GSS_C_NO_CONTEXT
;
338 major_status
= gss_init_sec_context(&minor_status
, GSS_C_NO_CREDENTIAL
,
340 http
->gssname
, http
->gssmech
,
341 GSS_C_MUTUAL_FLAG
| GSS_C_INTEG_FLAG
,
343 GSS_C_NO_CHANNEL_BINDINGS
,
344 GSS_C_NO_BUFFER
, &http
->gssmech
,
345 &output_token
, NULL
, NULL
);
347 #ifdef HAVE_GSS_ACQUIRE_CRED_EX_F
348 if (major_status
== GSS_S_NO_CRED
)
351 * Ask the user for credentials...
354 char prompt
[1024], /* Prompt for user */
355 userbuf
[256]; /* Kerberos username */
356 const char *username
, /* Username string */
357 *password
; /* Password string */
358 _cups_gss_acquire_t data
; /* Callback data */
359 gss_auth_identity_desc identity
; /* Kerberos user identity */
360 _cups_globals_t
*cg
= _cupsGlobals();
361 /* Per-thread global data */
363 if (!cg
->lang_default
)
364 cg
->lang_default
= cupsLangDefault();
366 snprintf(prompt
, sizeof(prompt
),
367 _cupsLangString(cg
->lang_default
, _("Password for %s on %s? ")),
368 cupsUser(), http
->gsshost
);
370 if ((password
= cupsGetPassword2(prompt
, http
, method
, resource
)) == NULL
)
374 * Try to acquire credentials...
377 username
= cupsUser();
378 if (!strchr(username
, '@'))
380 snprintf(userbuf
, sizeof(userbuf
), "%s@%s", username
, http
->gsshost
);
384 identity
.type
= GSS_AUTH_IDENTITY_TYPE_1
;
386 identity
.username
= (char *)username
;
387 identity
.realm
= (char *)"";
388 identity
.password
= (char *)password
;
389 identity
.credentialsRef
= NULL
;
391 data
.sem
= dispatch_semaphore_create(0);
397 major_status
= gss_acquire_cred_ex_f(NULL
, GSS_C_NO_NAME
, 0,
398 GSS_C_INDEFINITE
, GSS_KRB5_MECHANISM
,
399 GSS_C_INITIATE
, &identity
, &data
,
402 if (major_status
== GSS_S_COMPLETE
)
404 dispatch_semaphore_wait(data
.sem
, DISPATCH_TIME_FOREVER
);
405 major_status
= data
.major
;
408 dispatch_release(data
.sem
);
410 if (major_status
== GSS_S_COMPLETE
)
412 OM_uint32 release_minor
; /* Minor status from releasing creds */
414 major_status
= gss_init_sec_context(&minor_status
, data
.creds
,
416 http
->gssname
, http
->gssmech
,
417 GSS_C_MUTUAL_FLAG
| GSS_C_INTEG_FLAG
,
419 GSS_C_NO_CHANNEL_BINDINGS
,
420 GSS_C_NO_BUFFER
, &http
->gssmech
,
421 &output_token
, NULL
, NULL
);
422 gss_release_cred(&release_minor
, &data
.creds
);
426 #endif /* HAVE_GSS_ACQUIRED_CRED_EX_F */
428 if (GSS_ERROR(major_status
))
430 cups_gss_printf(major_status
, minor_status
,
431 "_cupsSetNegotiateAuthString: Unable to initialize "
437 else if (major_status
== GSS_S_CONTINUE_NEEDED
)
438 cups_gss_printf(major_status
, minor_status
,
439 "_cupsSetNegotiateAuthString: Continuation needed!");
442 if (output_token
.length
> 0 && output_token
.length
<= 65536)
445 * Allocate the authorization string since Windows KDCs can have
446 * arbitrarily large credentials...
449 int authsize
= 10 + /* "Negotiate " */
450 output_token
.length
* 4 / 3 + 1 + /* Base64 */
453 httpSetAuthString(http
, NULL
, NULL
);
455 if ((http
->authstring
= malloc(authsize
)) == NULL
)
457 http
->authstring
= http
->_authstring
;
458 authsize
= sizeof(http
->_authstring
);
461 strcpy(http
->authstring
, "Negotiate ");
462 httpEncode64_2(http
->authstring
+ 10, authsize
- 10, output_token
.value
,
463 output_token
.length
);
465 gss_release_buffer(&minor_status
, &output_token
);
469 DEBUG_printf(("1_cupsSetNegotiateAuthString: Kerberos credentials too "
470 "large - %d bytes!", (int)output_token
.length
));
471 gss_release_buffer(&minor_status
, &output_token
);
480 # ifdef HAVE_GSS_ACQUIRE_CRED_EX_F
482 * 'cups_gss_acquire()' - Kerberos credentials callback.
486 void *ctx
, /* I - Caller context */
487 OM_uint32 major
, /* I - Major error code */
488 gss_status_id_t status
, /* I - Status (unused) */
489 gss_cred_id_t creds
, /* I - Credentials (if any) */
490 gss_OID_set oids
, /* I - Mechanism OIDs (unused) */
491 OM_uint32 time_rec
) /* I - Timestamp (unused) */
493 uint32_t min
; /* Minor error code */
494 _cups_gss_acquire_t
*data
; /* Callback data */
500 data
= (_cups_gss_acquire_t
*)ctx
;
504 gss_release_oid_set(&min
, &oids
);
505 dispatch_semaphore_signal(data
->sem
);
507 # endif /* HAVE_GSS_ACQUIRE_CRED_EX_F */
511 * 'cups_gss_getname()' - Get CUPS service credentials for authentication.
514 static gss_name_t
/* O - Server name */
516 http_t
*http
, /* I - Connection to server */
517 const char *service_name
) /* I - Service name */
519 gss_buffer_desc token
= GSS_C_EMPTY_BUFFER
;
521 OM_uint32 major_status
, /* Major status code */
522 minor_status
; /* Minor status code */
523 gss_name_t server_name
; /* Server name */
524 char buf
[1024]; /* Name buffer */
527 DEBUG_printf(("7cups_gss_getname(http=%p, service_name=\"%s\")", http
,
532 * Get the hostname...
535 if (!http
->gsshost
[0])
537 httpGetHostname(http
, http
->gsshost
, sizeof(http
->gsshost
));
539 if (!strcmp(http
->gsshost
, "localhost"))
541 if (gethostname(http
->gsshost
, sizeof(http
->gsshost
)) < 0)
543 DEBUG_printf(("1cups_gss_getname: gethostname() failed: %s",
545 http
->gsshost
[0] = '\0';
549 if (!strchr(http
->gsshost
, '.'))
552 * The hostname is not a FQDN, so look it up...
555 struct hostent
*host
; /* Host entry to get FQDN */
557 if ((host
= gethostbyname(http
->gsshost
)) != NULL
&& host
->h_name
)
560 * Use the resolved hostname...
563 strlcpy(http
->gsshost
, host
->h_name
, sizeof(http
->gsshost
));
567 DEBUG_printf(("1cups_gss_getname: gethostbyname(\"%s\") failed.",
569 http
->gsshost
[0] = '\0';
577 * Get a service name we can use for authentication purposes...
580 snprintf(buf
, sizeof(buf
), "%s@%s", service_name
, http
->gsshost
);
582 DEBUG_printf(("8cups_gss_getname: Looking up \"%s\".", buf
));
585 token
.length
= strlen(buf
);
586 server_name
= GSS_C_NO_NAME
;
587 major_status
= gss_import_name(&minor_status
, &token
,
588 GSS_C_NT_HOSTBASED_SERVICE
,
591 if (GSS_ERROR(major_status
))
593 cups_gss_printf(major_status
, minor_status
,
594 "cups_gss_getname: gss_import_name() failed");
598 return (server_name
);
604 * 'cups_gss_printf()' - Show debug error messages from GSSAPI.
608 cups_gss_printf(OM_uint32 major_status
,/* I - Major status code */
609 OM_uint32 minor_status
,/* I - Minor status code */
610 const char *message
) /* I - Prefix for error message */
612 OM_uint32 err_major_status
, /* Major status code for display */
613 err_minor_status
; /* Minor status code for display */
614 OM_uint32 msg_ctx
; /* Message context */
615 gss_buffer_desc major_status_string
= GSS_C_EMPTY_BUFFER
,
616 /* Major status message */
617 minor_status_string
= GSS_C_EMPTY_BUFFER
;
618 /* Minor status message */
622 err_major_status
= gss_display_status(&err_minor_status
,
627 &major_status_string
);
629 if (!GSS_ERROR(err_major_status
))
630 gss_display_status(&err_minor_status
, minor_status
, GSS_C_MECH_CODE
,
631 GSS_C_NULL_OID
, &msg_ctx
, &minor_status_string
);
633 DEBUG_printf(("1%s: %s, %s", message
, (char *)major_status_string
.value
,
634 (char *)minor_status_string
.value
));
636 gss_release_buffer(&err_minor_status
, &major_status_string
);
637 gss_release_buffer(&err_minor_status
, &minor_status_string
);
640 #endif /* HAVE_GSSAPI */
644 * 'cups_local_auth()' - Get the local authorization certificate if
645 * available/applicable.
648 static int /* O - 0 if available */
649 /* 1 if not available */
651 cups_local_auth(http_t
*http
) /* I - HTTP connection to server */
653 #if defined(WIN32) || defined(__EMX__)
655 * Currently WIN32 and OS-2 do not support the CUPS server...
660 int pid
; /* Current process ID */
661 FILE *fp
; /* Certificate file */
662 char trc
[16], /* Try Root Certificate parameter */
663 filename
[1024], /* Certificate filename */
664 certificate
[33];/* Certificate string */
665 _cups_globals_t
*cg
= _cupsGlobals(); /* Global data */
666 # if defined(HAVE_AUTHORIZATION_H)
667 OSStatus status
; /* Status */
668 AuthorizationItem auth_right
; /* Authorization right */
669 AuthorizationRights auth_rights
; /* Authorization rights */
670 AuthorizationFlags auth_flags
; /* Authorization flags */
671 AuthorizationExternalForm auth_extrn
; /* Authorization ref external */
672 char auth_key
[1024]; /* Buffer */
673 char buffer
[1024]; /* Buffer */
674 # endif /* HAVE_AUTHORIZATION_H */
677 DEBUG_printf(("7cups_local_auth(http=%p) hostaddr=%s, hostname=\"%s\"",
678 http
, httpAddrString(http
->hostaddr
, filename
, sizeof(filename
)), http
->hostname
));
681 * See if we are accessing localhost...
684 if (!httpAddrLocalhost(http
->hostaddr
) &&
685 _cups_strcasecmp(http
->hostname
, "localhost") != 0)
687 DEBUG_puts("8cups_local_auth: Not a local connection!");
691 # if defined(HAVE_AUTHORIZATION_H)
693 * Delete any previous authorization reference...
698 AuthorizationFree(http
->auth_ref
, kAuthorizationFlagDefaults
);
699 http
->auth_ref
= NULL
;
702 if (!getenv("GATEWAY_INTERFACE") &&
703 httpGetSubField2(http
, HTTP_FIELD_WWW_AUTHENTICATE
, "authkey",
704 auth_key
, sizeof(auth_key
)))
706 status
= AuthorizationCreate(NULL
, kAuthorizationEmptyEnvironment
,
707 kAuthorizationFlagDefaults
, &http
->auth_ref
);
708 if (status
!= errAuthorizationSuccess
)
710 DEBUG_printf(("8cups_local_auth: AuthorizationCreate() returned %d (%s)",
711 (int)status
, cssmErrorString(status
)));
715 auth_right
.name
= auth_key
;
716 auth_right
.valueLength
= 0;
717 auth_right
.value
= NULL
;
718 auth_right
.flags
= 0;
720 auth_rights
.count
= 1;
721 auth_rights
.items
= &auth_right
;
723 auth_flags
= kAuthorizationFlagDefaults
|
724 kAuthorizationFlagPreAuthorize
|
725 kAuthorizationFlagInteractionAllowed
|
726 kAuthorizationFlagExtendRights
;
728 status
= AuthorizationCopyRights(http
->auth_ref
, &auth_rights
,
729 kAuthorizationEmptyEnvironment
,
731 if (status
== errAuthorizationSuccess
)
732 status
= AuthorizationMakeExternalForm(http
->auth_ref
, &auth_extrn
);
734 if (status
== errAuthorizationSuccess
)
737 * Set the authorization string and return...
740 httpEncode64_2(buffer
, sizeof(buffer
), (void *)&auth_extrn
,
743 httpSetAuthString(http
, "AuthRef", buffer
);
745 DEBUG_printf(("8cups_local_auth: Returning authstring=\"%s\"",
749 else if (status
== errAuthorizationCanceled
)
752 DEBUG_printf(("9cups_local_auth: AuthorizationCopyRights() returned %d (%s)",
753 (int)status
, cssmErrorString(status
)));
756 * Fall through to try certificates...
759 # endif /* HAVE_AUTHORIZATION_H */
761 # if defined(SO_PEERCRED) && defined(AF_LOCAL)
763 * See if we can authenticate using the peer credentials provided over a
764 * domain socket; if so, specify "PeerCred username" as the authentication
770 strncmp(http
->fields
[HTTP_FIELD_WWW_AUTHENTICATE
], "Negotiate", 9) &&
771 # endif /* HAVE_GSSAPI */
772 # ifdef HAVE_AUTHORIZATION_H
773 !httpGetSubField2(http
, HTTP_FIELD_WWW_AUTHENTICATE
, "authkey",
774 auth_key
, sizeof(auth_key
)) &&
775 # endif /* HAVE_AUTHORIZATION_H */
776 http
->hostaddr
->addr
.sa_family
== AF_LOCAL
&&
777 !getenv("GATEWAY_INTERFACE")) /* Not via CGI programs... */
780 * Verify that the current cupsUser() matches the current UID...
783 struct passwd
*pwd
; /* Password information */
784 const char *username
; /* Current username */
786 username
= cupsUser();
788 if ((pwd
= getpwnam(username
)) != NULL
&& pwd
->pw_uid
== getuid())
790 httpSetAuthString(http
, "PeerCred", username
);
792 DEBUG_printf(("8cups_local_auth: Returning authstring=\"%s\"",
798 # endif /* SO_PEERCRED && AF_LOCAL */
801 * Try opening a certificate file for this PID. If that fails,
802 * try the root certificate...
806 snprintf(filename
, sizeof(filename
), "%s/certs/%d", cg
->cups_statedir
, pid
);
807 if ((fp
= fopen(filename
, "r")) == NULL
&& pid
> 0)
810 * No certificate for this PID; see if we can get the root certificate...
813 DEBUG_printf(("9cups_local_auth: Unable to open file %s: %s",
814 filename
, strerror(errno
)));
817 if (!strncmp(http
->fields
[HTTP_FIELD_WWW_AUTHENTICATE
], "Negotiate", 9))
820 * Kerberos required, don't try the root certificate...
825 # endif /* HAVE_GSSAPI */
827 # ifdef HAVE_AUTHORIZATION_H
828 if (httpGetSubField2(http
, HTTP_FIELD_WWW_AUTHENTICATE
, "authkey",
829 auth_key
, sizeof(auth_key
)))
832 * Don't use the root certificate as a replacement for an authkey...
837 # endif /* HAVE_AUTHORIZATION_H */
838 if (!httpGetSubField2(http
, HTTP_FIELD_WWW_AUTHENTICATE
, "trc", trc
,
842 * Scheduler doesn't want us to use the root certificate...
848 snprintf(filename
, sizeof(filename
), "%s/certs/0", cg
->cups_statedir
);
849 fp
= fopen(filename
, "r");
855 * Read the certificate from the file...
858 fgets(certificate
, sizeof(certificate
), fp
);
862 * Set the authorization string and return...
865 httpSetAuthString(http
, "Local", certificate
);
867 DEBUG_printf(("8cups_local_auth: Returning authstring=\"%s\"",
874 #endif /* WIN32 || __EMX__ */
879 * End of "$Id: auth.c 7720 2008-07-11 22:46:21Z mike $".