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-rw-r--r--source3/printing/print_cups.c206
1 files changed, 206 insertions, 0 deletions
diff --git a/source3/printing/print_cups.c b/source3/printing/print_cups.c
new file mode 100644
index 0000000000..fff135e2a2
--- /dev/null
+++ b/source3/printing/print_cups.c
@@ -0,0 +1,206 @@
+/*
+ * Support code for the Common UNIX Printing System ("CUPS")
+ *
+ * Copyright 1999 by Easy Software Products
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+#include "smb.h"
+
+#ifdef HAVE_LIBCUPS
+#include <cups/cups.h>
+#include <cups/language.h>
+
+extern int DEBUGLEVEL;
+
+
+/*
+ * 'cups_printer_fn()' - Call a function for every printer known to the
+ * system.
+ */
+
+void cups_printer_fn(void (*fn)(char *, char *))
+{
+ http_t *http; /* HTTP connection to server */
+ ipp_t *request, /* IPP Request */
+ *response; /* IPP Response */
+ ipp_attribute_t *attr; /* Current attribute */
+ cups_lang_t *language; /* Default language */
+ char *name, /* printer-name attribute */
+ *make_model; /* make_model attribute */
+
+
+ /*
+ * Try to connect to the server...
+ */
+
+ if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+ return;
+
+ /*
+ * Build a CUPS_GET_PRINTERS request, which requires the following
+ * attributes:
+ *
+ * attributes-charset
+ * attributes-natural-language
+ */
+
+ request = ippNew();
+
+ request->request.op.operation_id = CUPS_GET_PRINTERS;
+ request->request.op.request_id = 1;
+
+ language = cupsLangDefault();
+
+ ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+ "attributes-charset", NULL, cupsLangEncoding(language));
+
+ ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+ "attributes-natural-language", NULL, language->language);
+
+ /*
+ * Do the request and get back a response...
+ */
+
+ if ((response = cupsDoRequest(http, request, "/")) == NULL)
+ {
+ httpClose(http);
+ return;
+ }
+
+ for (attr = response->attrs; attr != NULL;)
+ {
+ /*
+ * Skip leading attributes until we hit a printer...
+ */
+
+ while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
+ attr = attr->next;
+
+ if (attr == NULL)
+ break;
+
+ /*
+ * Pull the needed attributes from this printer...
+ */
+
+ name = NULL;
+ make_model = NULL;
+
+ while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER)
+ {
+ if (strcmp(attr->name, "printer-name") == 0 &&
+ attr->value_tag == IPP_TAG_NAME)
+ name = attr->values[0].string.text;
+
+ if (strcmp(attr->name, "printer-make-and-model") == 0 &&
+ attr->value_tag == IPP_TAG_TEXT)
+ make_model = attr->values[0].string.text;
+
+ attr = attr->next;
+ }
+
+ /*
+ * See if we have everything needed...
+ */
+
+ if (name == NULL)
+ break;
+
+ (*fn)(name, make_model);
+ }
+
+ ippDelete(response);
+ httpClose(http);
+}
+
+
+/*
+ * provide the equivalent of pcap_printername_ok() for SVID/XPG4 conforming
+ * systems.
+ */
+int cups_printername_ok(char *name)
+{
+ http_t *http; /* HTTP connection to server */
+ ipp_t *request, /* IPP Request */
+ *response; /* IPP Response */
+ ipp_attribute_t *attr; /* Current attribute */
+ cups_lang_t *language; /* Default language */
+ char uri[HTTP_MAX_URI]; /* printer-uri attribute */
+
+ /*
+ * Try to connect to the server...
+ */
+
+ if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
+ return (0);
+
+ /*
+ * Build a IPP_GET_PRINTER_ATTRS request, which requires the following
+ * attributes:
+ *
+ * attributes-charset
+ * attributes-natural-language
+ * printer-uri
+ */
+
+ request = ippNew();
+
+ request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
+ request->request.op.request_id = 1;
+
+ language = cupsLangDefault();
+
+ ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
+ "attributes-charset", NULL, cupsLangEncoding(language));
+
+ ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
+ "attributes-natural-language", NULL, language->language);
+
+ snprintf(uri, sizeof(uri), "ipp://localhost/printers/%s", name);
+
+ ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
+ "printer-uri", NULL, uri);
+
+ /*
+ * Do the request and get back a response...
+ */
+
+ if ((response = cupsDoRequest(http, request, "/")) == NULL)
+ {
+ httpClose(http);
+ return (0);
+ }
+
+ httpClose(http);
+
+ if (response->request.status.status_code >= IPP_OK_CONFLICT)
+ {
+ ippDelete(response);
+ return (0);
+ }
+ else
+ {
+ ippDelete(response);
+ return (1);
+ }
+}
+
+#else
+ /* this keeps fussy compilers happy */
+ void print_cups_dummy(void) {}
+#endif /* HAVE_LIBCUPS */