2
* "$Id: request.c 10996 2013-05-29 11:51:34Z msweet $"
4
* IPP utilities for CUPS.
6
* Copyright 2007-2013 by Apple Inc.
7
* Copyright 1997-2007 by Easy Software Products.
9
* These coded instructions, statements, and computer programs are the
10
* property of Apple Inc. and are protected by Federal copyright
11
* law. Distribution and use rights are outlined in the file "LICENSE.txt"
12
* which should have been included with this file. If this file is
13
* file is missing or damaged, see the license at "http://www.cups.org/".
15
* This file is subject to the Apple OS-Developed Software exception.
19
* cupsDoFileRequest() - Do an IPP request with a file.
20
* cupsDoIORequest() - Do an IPP request with file descriptors.
21
* cupsDoRequest() - Do an IPP request.
22
* cupsGetResponse() - Get a response to an IPP request.
23
* cupsLastError() - Return the last IPP status code.
24
* cupsLastErrorString() - Return the last IPP status-message.
25
* _cupsNextDelay() - Return the next retry delay value.
26
* cupsReadResponseData() - Read additional data after the IPP response.
27
* cupsSendRequest() - Send an IPP request.
28
* cupsWriteRequestData() - Write additional data after an IPP request.
29
* _cupsConnect() - Get the default server connection...
30
* _cupsSetError() - Set the last IPP status code and status-message.
31
* _cupsSetHTTPError() - Set the last error using the HTTP status.
35
* Include necessary headers...
38
#include "cups-private.h"
41
#if defined(WIN32) || defined(__EMX__)
45
#endif /* WIN32 || __EMX__ */
50
# define MSG_DONTWAIT 0
51
#endif /* !MSG_DONTWAIT */
55
* 'cupsDoFileRequest()' - Do an IPP request with a file.
57
* This function sends the IPP request and attached file to the specified
58
* server, retrying and authenticating as necessary. The request is freed with
62
ipp_t * /* O - Response data */
63
cupsDoFileRequest(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
64
ipp_t *request, /* I - IPP request */
65
const char *resource, /* I - HTTP resource for POST */
66
const char *filename) /* I - File to send or @code NULL@ for none */
68
ipp_t *response; /* IPP response data */
69
int infile; /* Input file */
72
DEBUG_printf(("cupsDoFileRequest(http=%p, request=%p(%s), resource=\"%s\", "
73
"filename=\"%s\")", http, request,
74
request ? ippOpString(request->request.op.operation_id) : "?",
79
if ((infile = open(filename, O_RDONLY | O_BINARY)) < 0)
82
* Can't get file information!
85
_cupsSetError(errno == ENOENT ? IPP_STATUS_ERROR_NOT_FOUND : IPP_STATUS_ERROR_NOT_AUTHORIZED,
96
response = cupsDoIORequest(http, request, resource, infile, -1);
106
* 'cupsDoIORequest()' - Do an IPP request with file descriptors.
108
* This function sends the IPP request with the optional input file "infile" to
109
* the specified server, retrying and authenticating as necessary. The request
110
* is freed with @link ippDelete@.
112
* If "infile" is a valid file descriptor, @code cupsDoIORequest@ copies
113
* all of the data from the file after the IPP request message.
115
* If "outfile" is a valid file descriptor, @code cupsDoIORequest@ copies
116
* all of the data after the IPP response message to the file.
118
* @since CUPS 1.3/OS X 10.5@
121
ipp_t * /* O - Response data */
122
cupsDoIORequest(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
123
ipp_t *request, /* I - IPP request */
124
const char *resource, /* I - HTTP resource for POST */
125
int infile, /* I - File to read from or -1 for none */
126
int outfile) /* I - File to write to or -1 for none */
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ipp_t *response = NULL; /* IPP response data */
129
size_t length = 0; /* Content-Length value */
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http_status_t status; /* Status of HTTP request */
131
struct stat fileinfo; /* File information */
132
int bytes; /* Number of bytes read/written */
133
char buffer[32768]; /* Output buffer */
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DEBUG_printf(("cupsDoIORequest(http=%p, request=%p(%s), resource=\"%s\", "
137
"infile=%d, outfile=%d)", http, request,
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request ? ippOpString(request->request.op.operation_id) : "?",
139
resource, infile, outfile));
142
* Range check input...
145
if (!request || !resource)
149
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
155
* Get the default connection as needed...
159
if ((http = _cupsConnect()) == NULL)
167
* See if we have a file to send...
172
if (fstat(infile, &fileinfo))
175
* Can't get file information!
178
_cupsSetError(errno == EBADF ? IPP_STATUS_ERROR_NOT_FOUND : IPP_STATUS_ERROR_NOT_AUTHORIZED,
187
if (fileinfo.st_mode & _S_IFDIR)
189
if (S_ISDIR(fileinfo.st_mode))
193
* Can't send a directory...
198
_cupsSetError(IPP_STATUS_ERROR_NOT_POSSIBLE, strerror(EISDIR), 0);
204
if (!S_ISREG(fileinfo.st_mode))
205
length = 0; /* Chunk when piping */
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length = ippLength(request) + fileinfo.st_size;
211
length = ippLength(request);
213
DEBUG_printf(("2cupsDoIORequest: Request length=%ld, total length=%ld",
214
(long)ippLength(request), (long)length));
217
* Clear any "Local" authentication data since it is probably stale...
220
if (http->authstring && !strncmp(http->authstring, "Local ", 6))
221
httpSetAuthString(http, NULL, NULL);
224
* Loop until we can send the request without authorization problems.
227
while (response == NULL)
229
DEBUG_puts("2cupsDoIORequest: setup...");
232
* Send the request...
235
status = cupsSendRequest(http, request, resource, length);
237
DEBUG_printf(("2cupsDoIORequest: status=%d", status));
239
if (status == HTTP_STATUS_CONTINUE && request->state == IPP_STATE_DATA && infile >= 0)
241
DEBUG_puts("2cupsDoIORequest: file write...");
244
* Send the file with the request...
248
if (S_ISREG(fileinfo.st_mode))
250
lseek(infile, 0, SEEK_SET);
252
while ((bytes = (int)read(infile, buffer, sizeof(buffer))) > 0)
254
if ((status = cupsWriteRequestData(http, buffer, bytes))
255
!= HTTP_STATUS_CONTINUE)
261
* Get the server's response...
264
if (status != HTTP_STATUS_ERROR)
266
response = cupsGetResponse(http, resource);
267
status = httpGetStatus(http);
270
DEBUG_printf(("2cupsDoIORequest: status=%d", status));
272
if (status == HTTP_STATUS_ERROR ||
273
(status >= HTTP_STATUS_BAD_REQUEST && status != HTTP_STATUS_UNAUTHORIZED &&
274
status != HTTP_STATUS_UPGRADE_REQUIRED))
276
_cupsSetHTTPError(status);
280
if (response && outfile >= 0)
283
* Write trailing data to file...
286
while ((bytes = (int)httpRead2(http, buffer, sizeof(buffer))) > 0)
287
if (write(outfile, buffer, bytes) < bytes)
291
if (http->state != HTTP_STATE_WAITING)
294
* Flush any remaining data...
302
* Delete the original request and return the response...
312
* 'cupsDoRequest()' - Do an IPP request.
314
* This function sends the IPP request to the specified server, retrying
315
* and authenticating as necessary. The request is freed with @link ippDelete@.
318
ipp_t * /* O - Response data */
319
cupsDoRequest(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
320
ipp_t *request, /* I - IPP request */
321
const char *resource) /* I - HTTP resource for POST */
323
DEBUG_printf(("cupsDoRequest(http=%p, request=%p(%s), resource=\"%s\")",
325
request ? ippOpString(request->request.op.operation_id) : "?",
328
return (cupsDoIORequest(http, request, resource, -1, -1));
333
* 'cupsGetResponse()' - Get a response to an IPP request.
335
* Use this function to get the response for an IPP request sent using
336
* @link cupsSendRequest@. For requests that return additional data, use
337
* @link cupsReadResponseData@ after getting a successful response,
338
* otherwise call @link httpFlush@ to complete the response processing.
340
* @since CUPS 1.4/OS X 10.6@
343
ipp_t * /* O - Response or @code NULL@ on HTTP error */
344
cupsGetResponse(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
345
const char *resource) /* I - HTTP resource for POST */
347
http_status_t status; /* HTTP status */
348
ipp_state_t state; /* IPP read state */
349
ipp_t *response = NULL; /* IPP response */
352
DEBUG_printf(("cupsGetResponse(http=%p, resource=\"%s\")", http, resource));
355
* Connect to the default server as needed...
359
http = _cupsConnect();
361
if (!http || (http->state != HTTP_STATE_POST_RECV &&
362
http->state != HTTP_STATE_POST_SEND))
366
* Check for an unfinished chunked request...
369
if (http->data_encoding == HTTP_ENCODING_CHUNKED)
372
* Send a 0-length chunk to finish off the request...
375
DEBUG_puts("2cupsGetResponse: Finishing chunked POST...");
377
if (httpWrite2(http, "", 0) < 0)
382
* Wait for a response from the server...
385
DEBUG_printf(("2cupsGetResponse: Update loop, http->status=%d...",
390
status = httpUpdate(http);
392
while (status == HTTP_STATUS_CONTINUE);
394
DEBUG_printf(("2cupsGetResponse: status=%d", status));
396
if (status == HTTP_STATUS_OK)
399
* Get the IPP response...
404
while ((state = ippRead(http, response)) != IPP_STATE_DATA)
405
if (state == IPP_STATE_ERROR)
408
if (state == IPP_STATE_ERROR)
411
* Flush remaining data and delete the response...
414
DEBUG_puts("1cupsGetResponse: IPP read error!");
421
http->status = status = HTTP_STATUS_ERROR;
422
http->error = EINVAL;
425
else if (status != HTTP_STATUS_ERROR)
428
* Flush any error message...
434
* Then handle encryption and authentication...
437
if (status == HTTP_STATUS_UNAUTHORIZED)
440
* See if we can do authentication...
443
DEBUG_puts("2cupsGetResponse: Need authorization...");
445
if (!cupsDoAuthentication(http, "POST", resource))
446
httpReconnect2(http, 30000, NULL);
448
http->status = status = HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED;
452
else if (status == HTTP_STATUS_UPGRADE_REQUIRED)
455
* Force a reconnect with encryption...
458
DEBUG_puts("2cupsGetResponse: Need encryption...");
460
if (!httpReconnect2(http, 30000, NULL))
461
httpEncryption(http, HTTP_ENCRYPTION_REQUIRED);
463
#endif /* HAVE_SSL */
468
ipp_attribute_t *attr; /* status-message attribute */
471
attr = ippFindAttribute(response, "status-message", IPP_TAG_TEXT);
473
DEBUG_printf(("1cupsGetResponse: status-code=%s, status-message=\"%s\"",
474
ippErrorString(response->request.status.status_code),
475
attr ? attr->values[0].string.text : ""));
477
_cupsSetError(response->request.status.status_code,
478
attr ? attr->values[0].string.text :
479
ippErrorString(response->request.status.status_code), 0);
487
* 'cupsLastError()' - Return the last IPP status code received on the current
491
ipp_status_t /* O - IPP status code from last request */
494
return (_cupsGlobals()->last_error);
499
* 'cupsLastErrorString()' - Return the last IPP status-message received on the
502
* @since CUPS 1.2/OS X 10.5@
505
const char * /* O - status-message text from last request */
506
cupsLastErrorString(void)
508
return (_cupsGlobals()->last_status_message);
513
* '_cupsNextDelay()' - Return the next retry delay value.
515
* This function currently returns the Fibonacci sequence 1 1 2 3 5 8.
517
* Pass 0 for the current delay value to initialize the sequence.
520
int /* O - Next delay value */
521
_cupsNextDelay(int current, /* I - Current delay value or 0 */
522
int *previous) /* IO - Previous delay value */
524
int next; /* Next delay value */
529
next = (current + *previous) % 12;
530
*previous = next < current ? 0 : current;
543
* 'cupsReadResponseData()' - Read additional data after the IPP response.
545
* This function is used after @link cupsGetResponse@ to read the PPD or document
546
* files from @code CUPS_GET_PPD@ and @code CUPS_GET_DOCUMENT@ requests,
549
* @since CUPS 1.4/OS X 10.6@
552
ssize_t /* O - Bytes read, 0 on EOF, -1 on error */
553
cupsReadResponseData(
554
http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
555
char *buffer, /* I - Buffer to use */
556
size_t length) /* I - Number of bytes to read */
559
* Get the default connection as needed...
562
DEBUG_printf(("cupsReadResponseData(http=%p, buffer=%p, "
563
"length=" CUPS_LLFMT ")", http, buffer, CUPS_LLCAST length));
567
_cups_globals_t *cg = _cupsGlobals();
568
/* Pointer to library globals */
570
if ((http = cg->http) == NULL)
572
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No active connection"), 1);
578
* Then read from the HTTP connection...
581
return (httpRead2(http, buffer, length));
586
* 'cupsSendRequest()' - Send an IPP request.
588
* Use @link cupsWriteRequestData@ to write any additional data (document, PPD
589
* file, etc.) for the request, @link cupsGetResponse@ to get the IPP response,
590
* and @link cupsReadResponseData@ to read any additional data following the
591
* response. Only one request can be sent/queued at a time per @code http_t@
594
* Returns the initial HTTP status code, which will be @code HTTP_STATUS_CONTINUE@
595
* on a successful send of the request.
597
* Note: Unlike @link cupsDoFileRequest@, @link cupsDoIORequest@, and
598
* @link cupsDoRequest@, the request is NOT freed with @link ippDelete@.
600
* @since CUPS 1.4/OS X 10.6@
603
http_status_t /* O - Initial HTTP status */
604
cupsSendRequest(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
605
ipp_t *request, /* I - IPP request */
606
const char *resource, /* I - Resource path */
607
size_t length) /* I - Length of data to follow or @code CUPS_LENGTH_VARIABLE@ */
609
http_status_t status; /* Status of HTTP request */
610
int got_status; /* Did we get the status? */
611
ipp_state_t state; /* State of IPP processing */
612
http_status_t expect; /* Expect: header to use */
615
DEBUG_printf(("cupsSendRequest(http=%p, request=%p(%s), resource=\"%s\", "
616
"length=" CUPS_LLFMT ")", http, request,
617
request ? ippOpString(request->request.op.operation_id) : "?",
618
resource, CUPS_LLCAST length));
621
* Range check input...
624
if (!request || !resource)
626
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
628
return (HTTP_STATUS_ERROR);
632
* Get the default connection as needed...
636
if ((http = _cupsConnect()) == NULL)
637
return (HTTP_STATUS_SERVICE_UNAVAILABLE);
640
* If the prior request was not flushed out, do so now...
643
if (http->state == HTTP_STATE_GET_SEND ||
644
http->state == HTTP_STATE_POST_SEND)
646
DEBUG_puts("2cupsSendRequest: Flush prior response.");
649
else if (http->state != HTTP_STATE_WAITING)
651
DEBUG_printf(("1cupsSendRequest: Unknown HTTP state (%d), "
652
"reconnecting.", http->state));
653
if (httpReconnect2(http, 30000, NULL))
654
return (HTTP_STATUS_ERROR);
659
* See if we have an auth-info attribute and are communicating over
660
* a non-local link. If so, encrypt the link so that we can pass
661
* the authentication information securely...
664
if (ippFindAttribute(request, "auth-info", IPP_TAG_TEXT) &&
665
!httpAddrLocalhost(http->hostaddr) && !http->tls &&
666
httpEncryption(http, HTTP_ENCRYPTION_REQUIRED))
668
DEBUG_puts("1cupsSendRequest: Unable to encrypt connection.");
669
return (HTTP_STATUS_SERVICE_UNAVAILABLE);
671
#endif /* HAVE_SSL */
674
* Reconnect if the last response had a "Connection: close"...
677
if (!_cups_strcasecmp(http->fields[HTTP_FIELD_CONNECTION], "close"))
679
DEBUG_puts("2cupsSendRequest: Connection: close");
680
httpClearFields(http);
681
if (httpReconnect2(http, 30000, NULL))
683
DEBUG_puts("1cupsSendRequest: Unable to reconnect.");
684
return (HTTP_STATUS_SERVICE_UNAVAILABLE);
689
* Loop until we can send the request without authorization problems.
692
expect = HTTP_STATUS_CONTINUE;
696
DEBUG_puts("2cupsSendRequest: Setup...");
699
* Setup the HTTP variables needed...
702
httpClearFields(http);
703
httpSetExpect(http, expect);
704
httpSetField(http, HTTP_FIELD_CONTENT_TYPE, "application/ipp");
705
httpSetLength(http, length);
708
if (http->authstring && !strncmp(http->authstring, "Negotiate", 9))
711
* Do not use cached Kerberos credentials since they will look like a
715
_cupsSetNegotiateAuthString(http, "POST", resource);
717
#endif /* HAVE_GSSAPI */
719
httpSetField(http, HTTP_FIELD_AUTHORIZATION, http->authstring);
721
DEBUG_printf(("2cupsSendRequest: authstring=\"%s\"", http->authstring));
727
DEBUG_puts("2cupsSendRequest: Sending HTTP POST...");
729
if (httpPost(http, resource))
731
DEBUG_puts("2cupsSendRequest: POST failed, reconnecting.");
732
if (httpReconnect2(http, 30000, NULL))
734
DEBUG_puts("1cupsSendRequest: Unable to reconnect.");
735
return (HTTP_STATUS_SERVICE_UNAVAILABLE);
742
* Send the IPP data...
745
DEBUG_puts("2cupsSendRequest: Writing IPP request...");
747
request->state = IPP_STATE_IDLE;
748
status = HTTP_STATUS_CONTINUE;
751
while ((state = ippWrite(http, request)) != IPP_STATE_DATA)
752
if (state == IPP_STATE_ERROR)
754
else if (httpCheck(http))
758
_httpUpdate(http, &status);
759
if (status >= HTTP_STATUS_MULTIPLE_CHOICES)
763
if (state == IPP_STATE_ERROR)
765
DEBUG_puts("1cupsSendRequest: Unable to send IPP request.");
767
http->status = HTTP_STATUS_ERROR;
768
http->state = HTTP_STATE_WAITING;
770
return (HTTP_STATUS_ERROR);
774
* Wait up to 1 second to get the 100-continue response as needed...
779
if (expect == HTTP_STATUS_CONTINUE)
781
DEBUG_puts("2cupsSendRequest: Waiting for 100-continue...");
783
if (httpWait(http, 1000))
784
_httpUpdate(http, &status);
786
else if (httpCheck(http))
787
_httpUpdate(http, &status);
790
DEBUG_printf(("2cupsSendRequest: status=%d", status));
793
* Process the current HTTP status...
796
if (status >= HTTP_STATUS_MULTIPLE_CHOICES)
798
int temp_status; /* Temporary status */
800
_cupsSetHTTPError(status);
804
temp_status = httpUpdate(http);
806
while (temp_status != HTTP_STATUS_ERROR &&
807
http->state == HTTP_STATE_POST_RECV);
814
case HTTP_STATUS_CONTINUE :
815
case HTTP_STATUS_OK :
816
case HTTP_STATUS_ERROR :
817
DEBUG_printf(("1cupsSendRequest: Returning %d.", status));
820
case HTTP_STATUS_UNAUTHORIZED :
821
if (cupsDoAuthentication(http, "POST", resource))
823
DEBUG_puts("1cupsSendRequest: Returning HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED.");
824
return (HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED);
827
DEBUG_puts("2cupsSendRequest: Reconnecting after HTTP_STATUS_UNAUTHORIZED.");
829
if (httpReconnect2(http, 30000, NULL))
831
DEBUG_puts("1cupsSendRequest: Unable to reconnect.");
832
return (HTTP_STATUS_SERVICE_UNAVAILABLE);
837
case HTTP_STATUS_UPGRADE_REQUIRED :
839
* Flush any error message, reconnect, and then upgrade with
843
DEBUG_puts("2cupsSendRequest: Reconnecting after "
844
"HTTP_STATUS_UPGRADE_REQUIRED.");
846
if (httpReconnect2(http, 30000, NULL))
848
DEBUG_puts("1cupsSendRequest: Unable to reconnect.");
849
return (HTTP_STATUS_SERVICE_UNAVAILABLE);
852
DEBUG_puts("2cupsSendRequest: Upgrading to TLS.");
853
if (httpEncryption(http, HTTP_ENCRYPTION_REQUIRED))
855
DEBUG_puts("1cupsSendRequest: Unable to encrypt connection.");
856
return (HTTP_STATUS_SERVICE_UNAVAILABLE);
859
#endif /* HAVE_SSL */
861
case HTTP_STATUS_EXPECTATION_FAILED :
863
* Don't try using the Expect: header the next time around...
866
expect = (http_status_t)0;
868
DEBUG_puts("2cupsSendRequest: Reconnecting after "
869
"HTTP_EXPECTATION_FAILED.");
871
if (httpReconnect2(http, 30000, NULL))
873
DEBUG_puts("1cupsSendRequest: Unable to reconnect.");
874
return (HTTP_STATUS_SERVICE_UNAVAILABLE);
880
* Some other error...
890
* 'cupsWriteRequestData()' - Write additional data after an IPP request.
892
* This function is used after @link cupsSendRequest@ to provide a PPD and
893
* after @link cupsStartDocument@ to provide a document file.
895
* @since CUPS 1.4/OS X 10.6@
898
http_status_t /* O - @code HTTP_STATUS_CONTINUE@ if OK or HTTP status on error */
899
cupsWriteRequestData(
900
http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
901
const char *buffer, /* I - Bytes to write */
902
size_t length) /* I - Number of bytes to write */
904
int wused; /* Previous bytes in buffer */
908
* Get the default connection as needed...
911
DEBUG_printf(("cupsWriteRequestData(http=%p, buffer=%p, "
912
"length=" CUPS_LLFMT ")", http, buffer, CUPS_LLCAST length));
916
_cups_globals_t *cg = _cupsGlobals();
917
/* Pointer to library globals */
919
if ((http = cg->http) == NULL)
921
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No active connection"), 1);
922
DEBUG_puts("1cupsWriteRequestData: Returning HTTP_STATUS_ERROR.");
923
return (HTTP_STATUS_ERROR);
928
* Then write to the HTTP connection...
933
if (httpWrite2(http, buffer, length) < 0)
935
DEBUG_puts("1cupsWriteRequestData: Returning HTTP_STATUS_ERROR.");
936
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(http->error), 0);
937
return (HTTP_STATUS_ERROR);
941
* Finally, check if we have any pending data from the server...
944
if (length >= HTTP_MAX_BUFFER ||
945
http->wused < wused ||
946
(wused > 0 && http->wused == length))
949
* We've written something to the server, so check for response data...
952
if (_httpWait(http, 0, 1))
954
http_status_t status; /* Status from _httpUpdate */
956
_httpUpdate(http, &status);
957
if (status >= HTTP_STATUS_MULTIPLE_CHOICES)
959
_cupsSetHTTPError(status);
963
status = httpUpdate(http);
965
while (status != HTTP_STATUS_ERROR && http->state == HTTP_STATE_POST_RECV);
970
DEBUG_printf(("1cupsWriteRequestData: Returning %d.\n", status));
975
DEBUG_puts("1cupsWriteRequestData: Returning HTTP_STATUS_CONTINUE.");
976
return (HTTP_STATUS_CONTINUE);
981
* '_cupsConnect()' - Get the default server connection...
984
http_t * /* O - HTTP connection */
987
_cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
991
* See if we are connected to the same server...
997
* Compare the connection hostname, port, and encryption settings to
998
* the cached defaults; these were initialized the first time we
1002
if (strcmp(cg->http->hostname, cg->server) ||
1003
cg->ipp_port != httpAddrPort(cg->http->hostaddr) ||
1004
(cg->http->encryption != cg->encryption &&
1005
cg->http->encryption == HTTP_ENCRYPTION_NEVER))
1008
* Need to close the current connection because something has changed...
1011
httpClose(cg->http);
1017
* Same server, see if the connection is still established...
1020
char ch; /* Connection check byte */
1023
if (recv(cg->http->fd, &ch, 1, MSG_PEEK) < 0 &&
1024
WSAGetLastError() != WSAEWOULDBLOCK)
1026
if (recv(cg->http->fd, &ch, 1, MSG_PEEK | MSG_DONTWAIT) < 0 &&
1027
errno != EWOULDBLOCK)
1031
* Nope, close the connection...
1034
httpClose(cg->http);
1041
* (Re)connect as needed...
1046
if ((cg->http = httpConnect2(cupsServer(), ippPort(), NULL, AF_UNSPEC,
1047
cupsEncryption(), 1, 30000, NULL)) == NULL)
1050
_cupsSetError(IPP_STATUS_ERROR_SERVICE_UNAVAILABLE, NULL, 0);
1052
_cupsSetError(IPP_STATUS_ERROR_SERVICE_UNAVAILABLE,
1053
_("Unable to connect to host."), 1);
1058
* Return the cached connection...
1066
* '_cupsSetError()' - Set the last IPP status code and status-message.
1070
_cupsSetError(ipp_status_t status, /* I - IPP status code */
1071
const char *message, /* I - status-message value */
1072
int localize) /* I - Localize the message? */
1074
_cups_globals_t *cg; /* Global data */
1077
if (!message && errno)
1079
message = strerror(errno);
1083
cg = _cupsGlobals();
1084
cg->last_error = status;
1086
if (cg->last_status_message)
1088
_cupsStrFree(cg->last_status_message);
1090
cg->last_status_message = NULL;
1098
* Get the message catalog...
1101
if (!cg->lang_default)
1102
cg->lang_default = cupsLangDefault();
1104
cg->last_status_message = _cupsStrAlloc(_cupsLangString(cg->lang_default,
1108
cg->last_status_message = _cupsStrAlloc(message);
1111
DEBUG_printf(("4_cupsSetError: last_error=%s, last_status_message=\"%s\"",
1112
ippErrorString(cg->last_error), cg->last_status_message));
1117
* '_cupsSetHTTPError()' - Set the last error using the HTTP status.
1121
_cupsSetHTTPError(http_status_t status) /* I - HTTP status code */
1125
case HTTP_STATUS_NOT_FOUND :
1126
_cupsSetError(IPP_STATUS_ERROR_NOT_FOUND, httpStatus(status), 0);
1129
case HTTP_STATUS_UNAUTHORIZED :
1130
_cupsSetError(IPP_STATUS_ERROR_NOT_AUTHENTICATED, httpStatus(status), 0);
1133
case HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED :
1134
_cupsSetError(IPP_STATUS_ERROR_CUPS_AUTHENTICATION_CANCELED, httpStatus(status), 0);
1137
case HTTP_STATUS_FORBIDDEN :
1138
_cupsSetError(IPP_STATUS_ERROR_FORBIDDEN, httpStatus(status), 0);
1141
case HTTP_STATUS_BAD_REQUEST :
1142
_cupsSetError(IPP_STATUS_ERROR_BAD_REQUEST, httpStatus(status), 0);
1145
case HTTP_STATUS_REQUEST_TOO_LARGE :
1146
_cupsSetError(IPP_STATUS_ERROR_REQUEST_VALUE, httpStatus(status), 0);
1149
case HTTP_STATUS_NOT_IMPLEMENTED :
1150
_cupsSetError(IPP_STATUS_ERROR_OPERATION_NOT_SUPPORTED, httpStatus(status), 0);
1153
case HTTP_STATUS_NOT_SUPPORTED :
1154
_cupsSetError(IPP_STATUS_ERROR_VERSION_NOT_SUPPORTED, httpStatus(status), 0);
1157
case HTTP_STATUS_UPGRADE_REQUIRED :
1158
_cupsSetError(IPP_STATUS_ERROR_CUPS_UPGRADE_REQUIRED, httpStatus(status), 0);
1161
case HTTP_STATUS_CUPS_PKI_ERROR :
1162
_cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, httpStatus(status), 0);
1165
case HTTP_STATUS_ERROR :
1166
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0);
1170
DEBUG_printf(("4_cupsSetHTTPError: HTTP error %d mapped to "
1171
"IPP_STATUS_ERROR_SERVICE_UNAVAILABLE!", status));
1172
_cupsSetError(IPP_STATUS_ERROR_SERVICE_UNAVAILABLE, httpStatus(status), 0);
1179
* End of "$Id: request.c 10996 2013-05-29 11:51:34Z msweet $".