diff options
| -rw-r--r-- | source3/printing/print_cups.c | 206 |
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 */ |