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cups/cups-avahi.patch

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Add patch.
2009-02-12 14:33:59 +00:00
diff -up cups-1.4b2/backend/dnssd.c.avahi cups-1.4b2/backend/dnssd.c
--- cups-1.4b2/backend/dnssd.c.avahi 2008-10-07 20:10:35.000000000 +0100
+++ cups-1.4b2/backend/dnssd.c 2009-02-12 13:14:34.000000000 +0000
@@ -20,7 +20,8 @@
* browse_local_callback() - Browse local devices.
* compare_devices() - Compare two devices.
* get_device() - Create or update a device.
- * query_callback() - Process query data.
+ * query_callback() - Process query data from DNS-SD
+ * find_device() - Process query data.
* unquote() - Unquote a name string.
*/
@@ -30,7 +31,16 @@
#include "backend-private.h"
#include <cups/array.h>
-#include <dns_sd.h>
+#ifdef HAVE_AVAHI
+# include <avahi-client/client.h>
+# include <avahi-client/lookup.h>
+# include <avahi-common/simple-watch.h>
+# include <avahi-common/domain.h>
+# include <avahi-common/error.h>
+#define kDNSServiceMaxDomainName AVAHI_DOMAIN_NAME_MAX
+#else
+# include <dns_sd.h>
+#endif /* Avahi */
/*
@@ -49,7 +59,9 @@ typedef enum
typedef struct
{
+#ifdef HAVE_DNSSD
DNSServiceRef ref; /* Service reference for resolve */
+#endif /* HAVE_DNSSD */
char *name, /* Service name */
*domain, /* Domain name */
*fullName, /* Full name */
@@ -65,6 +77,26 @@ typedef struct
* Local functions...
*/
+#ifdef HAVE_AVAHI
+/*
+ * Avahi callback functions
+ */
+static void avahi_client_callback(AvahiClient *client,
+ AvahiClientState state,
+ void *context);
+static void avahi_browse_callback(AvahiServiceBrowser *browser,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiBrowserEvent event,
+ const char *serviceName,
+ const char *regtype,
+ const char *replyDomain,
+ AvahiLookupResultFlags flags,
+ void *context);
+#else
+/*
+ * libdns_sd callback functions
+ */
static void browse_callback(DNSServiceRef sdRef,
DNSServiceFlags flags,
uint32_t interfaceIndex,
@@ -80,12 +112,6 @@ static void browse_local_callback(DNSSe
const char *regtype,
const char *replyDomain,
void *context);
-static int compare_devices(cups_device_t *a, cups_device_t *b);
-static void exec_backend(char **argv);
-static cups_device_t *get_device(cups_array_t *devices,
- const char *serviceName,
- const char *regtype,
- const char *replyDomain);
static void query_callback(DNSServiceRef sdRef,
DNSServiceFlags flags,
uint32_t interfaceIndex,
@@ -94,7 +120,31 @@ static void query_callback(DNSServiceRe
uint16_t rrclass, uint16_t rdlen,
const void *rdata, uint32_t ttl,
void *context);
+#endif
+
+static cups_device_t *find_device (cups_array_t *devices,
+ cups_device_t *key,
+ const char *priority, size_t priority_len,
+ const char *mfg, size_t mfg_len,
+ const char *mdl, size_t mdl_len,
+ const char *product, size_t product_len,
+ const char *ty, size_t ty_len,
+ const char *printer_type,
+ size_t printer_type_len);
+static int compare_devices(cups_device_t *a, cups_device_t *b);
+static void exec_backend(char **argv);
+static cups_device_t *get_device(cups_array_t *devices,
+ const char *serviceName,
+ const char *regtype,
+ const char *replyDomain);
static void unquote(char *dst, const char *src, size_t dstsize);
+static int device_type(const char *regtype);
+
+
+#ifdef HAVE_AVAHI
+static AvahiSimplePoll *simple_poll = NULL;
+static int avahi_got_callback;
+#endif /* HAVE_AVAHI */
/*
@@ -106,6 +156,16 @@ main(int argc, /* I - Number of comm
char *argv[]) /* I - Command-line arguments */
{
const char *name; /* Backend name */
+ int fd; /* Main file descriptor */
+ fd_set input; /* Input set for select() */
+ struct timeval timeout; /* Timeout for select() */
+ cups_array_t *devices; /* Device array */
+ cups_device_t *device; /* Current device */
+ char uriName[1024]; /* Unquoted fullName for URI */
+#ifdef HAVE_AVAHI
+ AvahiClient *client;
+ int error;
+#else
DNSServiceRef main_ref, /* Main service reference */
fax_ipp_ref, /* IPP fax service reference */
ipp_ref, /* IPP service reference */
@@ -117,11 +177,7 @@ main(int argc, /* I - Number of comm
pdl_datastream_ref, /* AppSocket service reference */
printer_ref, /* LPD service reference */
riousbprint_ref; /* Remote IO service reference */
- int fd; /* Main file descriptor */
- fd_set input; /* Input set for select() */
- struct timeval timeout; /* Timeout for select() */
- cups_array_t *devices; /* Device array */
- cups_device_t *device; /* Current device */
+#endif /* !HAVE_AVAHI */
/*
@@ -161,6 +217,48 @@ main(int argc, /* I - Number of comm
* Browse for different kinds of printers...
*/
+#ifdef HAVE_AVAHI
+ if ((simple_poll = avahi_simple_poll_new ()) == NULL)
+ {
+ perror ("ERROR: Unable to create avahi simple poll object");
+ return (1);
+ }
+
+ client = avahi_client_new (avahi_simple_poll_get (simple_poll),
+ 0, avahi_client_callback, NULL, &error);
+ if (!client)
+ {
+ perror ("ERROR: Unable to create avahi client");
+ return (1);
+ }
+
+ avahi_service_browser_new (client, AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ "_fax-ipp._tcp", NULL, 0,
+ avahi_browse_callback, devices);
+ avahi_service_browser_new (client, AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ "_ipp._tcp", NULL, 0,
+ avahi_browse_callback, devices);
+ avahi_service_browser_new (client, AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ "_ipp-tls._tcp", NULL, 0,
+ avahi_browse_callback, devices);
+ avahi_service_browser_new (client, AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ "_pdl-datastream._tcp",
+ NULL, 0,
+ avahi_browse_callback,
+ devices);
+ avahi_service_browser_new (client, AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ "_printer._tcp", NULL, 0,
+ avahi_browse_callback, devices);
+ avahi_service_browser_new (client, AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC,
+ "_riousbprint._tcp", NULL, 0,
+ avahi_browse_callback, devices);
+#else
if (DNSServiceCreateConnection(&main_ref) != kDNSServiceErr_NoError)
{
perror("ERROR: Unable to create service connection");
@@ -212,6 +310,7 @@ main(int argc, /* I - Number of comm
riousbprint_ref = main_ref;
DNSServiceBrowse(&riousbprint_ref, kDNSServiceFlagsShareConnection, 0,
"_riousbprint._tcp", NULL, browse_callback, devices);
+#endif /* !HAVE_AVAHI */
/*
* Loop until we are killed...
@@ -219,6 +318,25 @@ main(int argc, /* I - Number of comm
for (;;)
{
+ int announce = 0;
+
+#ifdef HAVE_AVAHI
+ int r;
+ avahi_got_callback = 0;
+ r = avahi_simple_poll_iterate (simple_poll, 1);
+ if (r != 0 && r != EINTR)
+ {
+ /*
+ * We've been told to exit the loop. Perhaps the connection to
+ * avahi failed.
+ */
+
+ break;
+ }
+
+ if (avahi_got_callback)
+ announce = 1;
+#else
FD_ZERO(&input);
FD_SET(fd, &input);
@@ -238,11 +356,19 @@ main(int argc, /* I - Number of comm
}
else
{
+ announce = 1;
+ }
+#endif /* !HAVE_AVAHI */
+
+ if (announce)
+ {
/*
* Announce any devices we've found...
*/
+#ifndef HAVE_AVAHI
DNSServiceErrorType status; /* DNS query status */
+#endif /* !HAVE_AVAHI */
cups_device_t *best; /* Best matching device */
char device_uri[1024]; /* Device URI */
int count; /* Number of queries */
@@ -255,6 +381,7 @@ main(int argc, /* I - Number of comm
best = NULL, count = 0;
device;
device = (cups_device_t *)cupsArrayNext(devices))
+#ifndef HAVE_AVAHI
if (!device->ref && !device->sent)
{
/*
@@ -283,14 +410,19 @@ main(int argc, /* I - Number of comm
count ++;
}
}
- else if (!device->sent)
+ else
+#endif /* !HAVE_AVAHI */
+
+ if (!device->sent)
{
+#ifndef HAVE_AVAHI
/*
* Got the TXT records, now report the device...
*/
DNSServiceRefDeallocate(device->ref);
device->ref = 0;
+#endif /* !HAVE_AVAHI */
if (!best)
best = device;
@@ -332,6 +464,204 @@ main(int argc, /* I - Number of comm
}
+#ifdef HAVE_AVAHI
+static void
+avahi_client_callback(
+ AvahiClient *client,
+ AvahiClientState state,
+ void *context)
+{
+ /*
+ * If the connection drops, quit.
+ */
+
+ if (state == AVAHI_CLIENT_FAILURE)
+ {
+ fprintf (stderr, "ERROR: Avahi connection failed\n");
+ avahi_simple_poll_quit (simple_poll);
+ }
+}
+
+static void
+avahi_query_callback(
+ AvahiServiceResolver *resolver,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiResolverEvent event,
+ const char *name,
+ const char *type,
+ const char *domain,
+ const char *host_name,
+ const AvahiAddress *address,
+ uint16_t port,
+ AvahiStringList *txt,
+ AvahiLookupResultFlags flags,
+ void *context)
+{
+ AvahiStringList *pair;
+ AvahiClient *client;
+ cups_device_t key,
+ *device;
+ char uqname[1024],
+ *ptr;
+ char *priority = NULL,
+ *mfg = NULL,
+ *mdl = NULL,
+ *product = NULL,
+ *ty = NULL,
+ *printer_type = NULL;
+ size_t priority_len = 0,
+ mfg_len = 0,
+ mdl_len = 0,
+ product_len = 0,
+ ty_len = 0,
+ printer_type_len = 0;
+
+ client = avahi_service_resolver_get_client (resolver);
+ if (event != AVAHI_RESOLVER_FOUND)
+ {
+ if (event == AVAHI_RESOLVER_FAILURE)
+ {
+ fprintf (stderr, "ERROR: %s\n",
+ avahi_strerror (avahi_client_errno (client)));
+ }
+
+ avahi_service_resolver_free (resolver);
+ return;
+ }
+
+ /*
+ * Set search key for device.
+ */
+
+ key.name = uqname;
+ unquote (uqname, name, sizeof (uqname));
+ if ((ptr = strstr(name, "._")) != NULL)
+ *ptr = '\0';
+
+ key.domain = (char *) domain;
+ key.type = device_type (type);
+
+ /*
+ * Look for information in the TXT string.
+ */
+
+ if ((pair = avahi_string_list_find (txt, "priority")) != NULL)
+ avahi_string_list_get_pair (pair, NULL, &priority, &priority_len);
+
+ if ((pair = avahi_string_list_find (txt, "usb_MFG")) == NULL)
+ pair = avahi_string_list_find (txt, "usb_MANUFACTURER");
+ if (pair != NULL)
+ avahi_string_list_get_pair (pair, NULL, &mfg, &mfg_len);
+
+ if ((pair = avahi_string_list_find (txt, "usb_MDL")) == NULL)
+ pair = avahi_string_list_find (txt, "usb_MODEL");
+ if (pair != NULL)
+ avahi_string_list_get_pair (pair, NULL, &mdl, &mdl_len);
+
+ if ((pair = avahi_string_list_find (txt, "product")) != NULL)
+ avahi_string_list_get_pair (pair, NULL, &product, &product_len);
+
+ if ((pair = avahi_string_list_find (txt, "ty")) != NULL)
+ avahi_string_list_get_pair (pair, NULL, &ty, &ty_len);
+
+ if ((pair = avahi_string_list_find (txt, "printer-type")) != NULL)
+ avahi_string_list_get_pair (pair, NULL, &printer_type, &printer_type_len);
+
+ /*
+ * Find the device and the the TXT information.
+ */
+
+ device = find_device ((cups_array_t *) context,
+ &key,
+ priority, priority_len,
+ mfg, mfg_len,
+ mdl, mdl_len,
+ product, product_len,
+ ty, ty_len,
+ printer_type, printer_type_len);
+ if (device)
+ {
+ /*
+ * Let the main loop know to announce the device.
+ */
+
+ avahi_got_callback = 1;
+ }
+ else
+ fprintf (stderr, "DEBUG: Ignoring TXT record for \"%s\"...\n", name);
+
+ avahi_service_resolver_free (resolver);
+}
+
+static void
+avahi_browse_callback(
+ AvahiServiceBrowser *browser,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiBrowserEvent event,
+ const char *name,
+ const char *type,
+ const char *domain,
+ AvahiLookupResultFlags flags,
+ void *context)
+{
+ AvahiClient *client = avahi_service_browser_get_client (browser);
+
+ switch (event)
+ {
+ case AVAHI_BROWSER_FAILURE:
+ fprintf (stderr, "ERROR: %s\n",
+ avahi_strerror (avahi_client_errno (client)));
+ avahi_simple_poll_quit (simple_poll);
+ return;
+
+ case AVAHI_BROWSER_NEW:
+ /*
+ * This object is new on the network.
+ */
+
+ if (flags & AVAHI_LOOKUP_RESULT_LOCAL)
+ {
+ /*
+ * This comes from the local machine so ignore it.
+ */
+
+ fprintf (stderr, "DEBUG: ignoring local service %s\n", name);
+ }
+ else
+ {
+ /*
+ * Create a device entry for it if it doesn't yet exist.
+ */
+
+ get_device ((cups_array_t *)context, name, type, domain);
+
+ /*
+ * Now look for a TXT entry.
+ */
+
+ if (avahi_service_resolver_new (client, interface, protocol,
+ name, type, domain,
+ AVAHI_PROTO_UNSPEC, 0,
+ avahi_query_callback, context) == NULL)
+ {
+ fprintf (stderr, "ERROR: failed to resolve service %s: %s\n",
+ name, avahi_strerror (avahi_client_errno (client)));
+ }
+ }
+
+ break;
+
+ case AVAHI_BROWSER_REMOVE:
+ case AVAHI_BROWSER_ALL_FOR_NOW:
+ case AVAHI_BROWSER_CACHE_EXHAUSTED:
+ break;
+ }
+}
+
+#else /* !HAVE_AVAHI */
+
/*
* 'browse_callback()' - Browse devices.
*/
@@ -420,6 +750,7 @@ browse_local_callback(
device->fullName);
device->sent = 1;
}
+#endif /* !HAVE_AVAHI */
/*
@@ -518,18 +849,7 @@ get_device(cups_array_t *devices, /* I -
key.name = (char *)serviceName;
key.domain = (char *)replyDomain;
-
- if (!strcmp(regtype, "_ipp._tcp.") ||
- !strcmp(regtype, "_ipp-tls._tcp."))
- key.type = CUPS_DEVICE_IPP;
- else if (!strcmp(regtype, "_fax-ipp._tcp."))
- key.type = CUPS_DEVICE_FAX_IPP;
- else if (!strcmp(regtype, "_printer._tcp."))
- key.type = CUPS_DEVICE_PRINTER;
- else if (!strcmp(regtype, "_pdl-datastream._tcp."))
- key.type = CUPS_DEVICE_PDL_DATASTREAM;
- else
- key.type = CUPS_DEVICE_RIOUSBPRINT;
+ key.type = device_type (regtype);
for (device = cupsArrayFind(devices, &key);
device;
@@ -559,13 +879,20 @@ get_device(cups_array_t *devices, /* I -
* Set the "full name" of this service, which is used for queries...
*/
+#ifdef HAVE_AVAHI
+ avahi_service_name_join (fullName, kDNSServiceMaxDomainName,
+ serviceName, regtype, replyDomain);
+ device->fullName = strdup(fullName);
+#else
DNSServiceConstructFullName(fullName, serviceName, regtype, replyDomain);
device->fullName = strdup(fullName);
+#endif /* !HAVE_AVAHI */
return (device);
}
+#ifndef HAVE_AVAHI
/*
* 'query_callback()' - Process query data.
*/
@@ -584,12 +911,21 @@ query_callback(
uint32_t ttl, /* I - Time-to-live */
void *context) /* I - Devices array */
{
- cups_array_t *devices; /* Device array */
char name[1024], /* Service name */
*ptr; /* Pointer into name */
- cups_device_t key, /* Search key */
- *device; /* Device */
-
+ cups_device_t key; /* Search key */
+ const char *priority,
+ *mfg,
+ *mdl,
+ *product,
+ *ty,
+ *printer_type;
+ uint8_t priority_len,
+ mfg_len,
+ mdl_len,
+ product_len,
+ ty_len,
+ printer_type_len;
fprintf(stderr, "DEBUG2: query_callback(sdRef=%p, flags=%x, "
"interfaceIndex=%d, errorCode=%d, fullName=\"%s\", "
@@ -610,7 +946,6 @@ query_callback(
* Lookup the service in the devices array.
*/
- devices = (cups_array_t *)context;
key.name = name;
unquote(name, fullName, sizeof(name));
@@ -635,88 +970,111 @@ query_callback(
else
key.type = CUPS_DEVICE_RIOUSBPRINT;
- for (device = cupsArrayFind(devices, &key);
+ priority = TXTRecordGetValuePtr(rdlen, rdata, "priority", &priority_len);
+ if ((mfg = TXTRecordGetValuePtr(rdlen, rdata, "usb_MFG", &mfg_len)) == NULL)
+ mfg = TXTRecordGetValuePtr(rdlen, rdata, "usb_MANUFACTURER", &mfg_len);
+
+ if ((mdl = TXTRecordGetValuePtr(rdlen, rdata, "usb_MDL", &mdl_len)) == NULL)
+ mdl = TXTRecordGetValuePtr(rdlen, rdata, "usb_MODEL", &mdl_len);
+
+ product = TXTRecordGetValuePtr(rdlen, rdata, "product", &product_len);
+ ty = TXTRecordGetValuePtr(rdlen, rdata, "ty", &ty_len);
+ printer_type = TXTRecordGetValuePtr(rdlen, rdata, "printer-type",
+ &printer_type_len);
+
+ if (!find_device ((cups_array_t *) context,
+ &key,
+ priority, priority_len,
+ mfg, mfg_len,
+ mdl, mdl_len,
+ product, product_len,
+ ty, ty_len,
+ printer_type, printer_type_len))
+ fprintf(stderr, "DEBUG: Ignoring TXT record for \"%s\"...\n", fullName);
+}
+#endif /* !HAVE_AVAHI */
+
+
+static cups_device_t *
+find_device (cups_array_t *devices,
+ cups_device_t *key,
+ const char *priority, size_t priority_len,
+ const char *mfg, size_t mfg_len,
+ const char *mdl, size_t mdl_len,
+ const char *product, size_t product_len,
+ const char *ty, size_t ty_len,
+ const char *printer_type, size_t printer_type_len)
+{
+ cups_device_t *device;
+
+ for (device = cupsArrayFind(devices, key);
device;
device = cupsArrayNext(devices))
{
- if (strcasecmp(device->name, key.name) ||
- strcasecmp(device->domain, key.domain))
+ if (strcasecmp(device->name, key->name) ||
+ strcasecmp(device->domain, key->domain))
{
device = NULL;
break;
}
- else if (device->type == key.type)
+ else if (device->type == key->type)
{
/*
* Found it, pull out the priority and make and model from the TXT
* record and save it...
*/
- const void *value; /* Pointer to value */
- uint8_t valueLen; /* Length of value (max 255) */
char make_and_model[512], /* Manufacturer and model */
model[256], /* Model */
- priority[256]; /* Priority */
-
+ priority_buf[256], /* Priority */
+ *ptr;
- value = TXTRecordGetValuePtr(rdlen, rdata, "priority", &valueLen);
- if (value && valueLen)
+ if (priority && priority_len)
{
- memcpy(priority, value, valueLen);
- priority[valueLen] = '\0';
- device->priority = atoi(priority);
+ memcpy(priority_buf, priority, priority_len);
+ priority_buf[priority_len] = '\0';
+ device->priority = atoi(priority_buf);
}
- if ((value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MFG",
- &valueLen)) == NULL)
- value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MANUFACTURER",
- &valueLen);
-
- if (value && valueLen)
+ if (mfg && mfg_len)
{
- memcpy(make_and_model, value, valueLen);
- make_and_model[valueLen] = '\0';
+ memcpy(make_and_model, mfg, mfg_len);
+ make_and_model[mfg_len] = '\0';
}
else
make_and_model[0] = '\0';
- if ((value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MDL",
- &valueLen)) == NULL)
- value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MODEL", &valueLen);
-
- if (value && valueLen)
+ if (mdl && mdl_len)
{
- memcpy(model, value, valueLen);
- model[valueLen] = '\0';
+ memcpy(model, mdl, mdl_len);
+ model[mdl_len] = '\0';
}
- else if ((value = TXTRecordGetValuePtr(rdlen, rdata, "product",
- &valueLen)) != NULL && valueLen > 2)
+ else if (product && product_len > 2)
{
- if (((char *)value)[0] == '(')
+ if (product[0] == '(')
{
/*
* Strip parenthesis...
*/
- memcpy(model, value + 1, valueLen - 2);
- model[valueLen - 2] = '\0';
+ memcpy(model, product + 1, product_len - 2);
+ model[product_len - 2] = '\0';
}
else
{
- memcpy(model, value, valueLen);
- model[valueLen] = '\0';
+ memcpy(model, product, product_len);
+ model[product_len] = '\0';
}
if (!strcasecmp(model, "GPL Ghostscript") ||
!strcasecmp(model, "GNU Ghostscript") ||
!strcasecmp(model, "ESP Ghostscript"))
{
- if ((value = TXTRecordGetValuePtr(rdlen, rdata, "ty",
- &valueLen)) != NULL)
+ if (ty && ty_len)
{
- memcpy(model, value, valueLen);
- model[valueLen] = '\0';
+ memcpy(model, ty, ty_len);
+ model[ty_len] = '\0';
if ((ptr = strchr(model, ',')) != NULL)
*ptr = '\0';
@@ -742,7 +1100,7 @@ query_callback(
if ((device->type == CUPS_DEVICE_IPP ||
device->type == CUPS_DEVICE_PRINTER) &&
- TXTRecordGetValuePtr(rdlen, rdata, "printer-type", &valueLen))
+ printer_type)
{
/*
* This is a CUPS printer!
@@ -758,8 +1116,7 @@ query_callback(
}
}
- if (!device)
- fprintf(stderr, "DEBUG: Ignoring TXT record for \"%s\"...\n", fullName);
+ return device;
}
@@ -797,6 +1154,35 @@ unquote(char *dst, /* I - Destina
}
+static int
+device_type (const char *regtype)
+{
+#ifdef HAVE_AVAHI
+ if (!strcmp(regtype, "_ipp._tcp") ||
+ !strcmp(regtype, "_ipp-tls._tcp"))
+ return (CUPS_DEVICE_IPP);
+ else if (!strcmp(regtype, "_fax-ipp._tcp"))
+ return (CUPS_DEVICE_FAX_IPP);
+ else if (!strcmp(regtype, "_printer._tcp"))
+ return (CUPS_DEVICE_PRINTER);
+ else if (!strcmp(regtype, "_pdl-datastream._tcp"))
+ return (CUPS_DEVICE_PDL_DATASTREAM);
+#else
+ if (!strcmp(regtype, "_ipp._tcp.") ||
+ !strcmp(regtype, "_ipp-tls._tcp."))
+ return (CUPS_DEVICE_IPP);
+ else if (!strcmp(regtype, "_fax-ipp._tcp."))
+ return (CUPS_DEVICE_FAX_IPP);
+ else if (!strcmp(regtype, "_printer._tcp."))
+ return (CUPS_DEVICE_PRINTER);
+ else if (!strcmp(regtype, "_pdl-datastream._tcp."))
+ return (CUPS_DEVICE_PDL_DATASTREAM);
+#endif /* !HAVE_AVAHI */
+
+ return (CUPS_DEVICE_RIOUSBPRINT);
+}
+
+
/*
* End of "$Id: dnssd.c 8023 2008-10-07 19:10:35Z mike $".
*/
diff -up cups-1.4b2/config.h.in.avahi cups-1.4b2/config.h.in
--- cups-1.4b2/config.h.in.avahi 2008-09-08 23:03:01.000000000 +0100
+++ cups-1.4b2/config.h.in 2009-02-12 13:13:51.000000000 +0000
@@ -344,6 +344,13 @@
/*
+ * Do we have Avahi for DNS Service Discovery?
+ */
+
+#undef HAVE_AVAHI
+
+
+/*
* Do we have <sys/ioctl.h>?
*/
diff -up cups-1.4b2/config-scripts/cups-dnssd.m4.avahi cups-1.4b2/config-scripts/cups-dnssd.m4
--- cups-1.4b2/config-scripts/cups-dnssd.m4.avahi 2008-08-29 23:19:39.000000000 +0100
+++ cups-1.4b2/config-scripts/cups-dnssd.m4 2009-02-12 13:13:51.000000000 +0000
@@ -27,6 +27,21 @@ AC_ARG_WITH(dnssd-includes, [ --with-dn
DNSSDLIBS=""
DNSSD_BACKEND=""
+AC_ARG_ENABLE(avahi, [ --enable-avahi turn on DNS Service Discovery support, default=no],
+ [if test x$enable_avahi = xyes; then
+ AC_MSG_CHECKING(for Avahi)
+ if $PKGCONFIG --exists avahi-client; then
+ AC_MSG_RESULT(yes)
+ CFLAGS="$CFLAGS `$PKGCONFIG --cflags avahi-client`"
+ DNSSDLIBS="`$PKGCONFIG --libs avahi-client`"
+ DNSSD_BACKEND="dnssd"
+ AC_DEFINE(HAVE_AVAHI)
+ enable_dnssd=no
+ else
+ AC_MSG_RESULT(no)
+ fi
+ fi])
+
if test x$enable_dnssd != xno; then
AC_CHECK_HEADER(dns_sd.h, [
case "$uname" in
diff -up cups-1.4b2/cups/http-support.c.avahi cups-1.4b2/cups/http-support.c
--- cups-1.4b2/cups/http-support.c.avahi 2008-12-10 05:03:11.000000000 +0000
+++ cups-1.4b2/cups/http-support.c 2009-02-12 13:18:24.000000000 +0000
@@ -53,6 +53,11 @@
#ifdef HAVE_DNSSD
# include <dns_sd.h>
#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+# include <avahi-client/client.h>
+# include <avahi-client/lookup.h>
+# include <avahi-common/simple-watch.h>
+#endif /* HAVE_AVAHI */
/*
@@ -119,6 +124,27 @@ static void resolve_callback(DNSService
void *context);
#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+static void
+avahi_resolve_uri_client_callback (AvahiClient *client,
+ AvahiClientState state,
+ void *simple_poll);
+static void
+avahi_resolve_uri_resolver_callback (AvahiServiceResolver *resolver,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiResolverEvent event,
+ const char *name,
+ const char *type,
+ const char *domain,
+ const char *host_name,
+ const AvahiAddress *address,
+ uint16_t port,
+ AvahiStringList *txt,
+ AvahiLookupResultFlags flags,
+ void *context);
+#endif /* HAVE_AVAHI */
+
/*
* 'httpAssembleURI()' - Assemble a uniform resource identifier from its
@@ -1337,11 +1363,22 @@ _httpResolveURI(
if (strstr(hostname, "._tcp"))
{
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
#ifdef HAVE_DNSSD
DNSServiceRef ref; /* DNS-SD service reference */
+ _http_uribuf_t uribuf; /* URI buffer */
+#else
+ AvahiSimplePoll *simple_poll;
+ AvahiClient *client;
+ int error;
+ struct
+ {
+ AvahiSimplePoll *poll;
+ _http_uribuf_t uribuf;
+ } user_data;
+#endif /* HAVE_DNSSD */
char *regtype, /* Pointer to type in hostname */
*domain; /* Pointer to domain in hostname */
- _http_uribuf_t uribuf; /* URI buffer */
/*
* Separate the hostname into service name, registration type, and domain...
@@ -1379,8 +1416,13 @@ _httpResolveURI(
if (domain)
*domain++ = '\0';
+#ifdef HAVE_DNSSD
uribuf.buffer = resolved_uri;
uribuf.bufsize = resolved_size;
+#else
+ user_data.uribuf.buffer = resolved_uri;
+ user_data.uribuf.bufsize = resolved_size;
+#endif
resolved_uri[0] = '\0';
@@ -1394,6 +1436,7 @@ _httpResolveURI(
_cupsLangPuts(stderr, _("INFO: Looking for printer...\n"));
}
+#ifdef HAVE_DNSSD
if (DNSServiceResolve(&ref, 0, 0, hostname, regtype, domain,
resolve_callback,
&uribuf) == kDNSServiceErr_NoError)
@@ -1409,16 +1452,49 @@ _httpResolveURI(
else
uri = NULL;
+#else
+ if ((simple_poll = avahi_simple_poll_new ()) != NULL)
+ {
+ if ((client = avahi_client_new (avahi_simple_poll_get (simple_poll),
+ 0, avahi_resolve_uri_client_callback,
+ &simple_poll, &error)) != NULL)
+ {
+ user_data.poll = simple_poll;
+ if (avahi_service_resolver_new (client, AVAHI_IF_UNSPEC,
+ AVAHI_PROTO_UNSPEC, hostname,
+ regtype, domain, AVAHI_PROTO_UNSPEC, 0,
+ avahi_resolve_uri_resolver_callback,
+ &user_data) != NULL)
+ {
+ avahi_simple_poll_loop (simple_poll);
+
+ /*
+ * Collect the result.
+ */
+
+ if (resolved_uri[0])
+ uri = resolved_uri;
+ else
+ uri = NULL;
+ }
+
+ avahi_client_free (client);
+ }
+
+ avahi_simple_poll_free (simple_poll);
+ }
+#endif
+
if (log)
fputs("STATE: -connecting-to-device\n", stderr);
-#else
- /*
- * No DNS-SD support...
- */
-
+#else /* HAVE_DNSSD || HAVE_AVAHI */
+ /*
+ * No DNS-SD support...
+ */
+
uri = NULL;
-#endif /* HAVE_DNSSD */
+#endif /* HAVE_DNSSD || HAVE_AVAHI */
if (log && !uri)
_cupsLangPuts(stderr, _("Unable to find printer!\n"));
@@ -1623,6 +1699,105 @@ resolve_callback(
}
#endif /* HAVE_DNSSD */
+#ifdef HAVE_AVAHI
+static void
+avahi_resolve_uri_client_callback (AvahiClient *client,
+ AvahiClientState state,
+ void *simple_poll)
+{
+ DEBUG_printf(("avahi_resolve_uri_client_callback(client=%p, state=%d, "
+ "simple_poll=%p)\n", client, state, simple_poll));
+
+ /*
+ * If the connection drops, quit.
+ */
+
+ if (state == AVAHI_CLIENT_FAILURE)
+ avahi_simple_poll_quit (simple_poll);
+}
+
+static void
+avahi_resolve_uri_resolver_callback (AvahiServiceResolver *resolver,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiResolverEvent event,
+ const char *name,
+ const char *type,
+ const char *domain,
+ const char *host_name,
+ const AvahiAddress *address,
+ uint16_t port,
+ AvahiStringList *txt,
+ AvahiLookupResultFlags flags,
+ void *context)
+{
+ const char *scheme; /* URI scheme */
+ char rp[256]; /* Remote printer */
+ AvahiStringList *pair;
+ char *value;
+ size_t valueLen = 0;
+ char addr[AVAHI_ADDRESS_STR_MAX];
+ struct
+ {
+ AvahiSimplePoll *poll;
+ _http_uribuf_t uribuf;
+ } *poll_uribuf = context;
+
+ DEBUG_printf(("avahi_resolve_uri_resolver_callback(resolver=%p, "
+ "interface=%d, protocol=%d, event=%d, name=\"%s\", "
+ "type=\"%s\", domain=\"%s\", host_name=\"%s\", address=%p, "
+ "port=%d, txt=%p, flags=%d, context=%p)\n",
+ resolver, interface, protocol, event, name, type, domain,
+ host_name, address, port, txt, flags, context));
+
+ if (event != AVAHI_RESOLVER_FOUND)
+ {
+ avahi_service_resolver_free (resolver);
+ avahi_simple_poll_quit (poll_uribuf->poll);
+ return;
+ }
+
+ /*
+ * Figure out the scheme from the full name...
+ */
+
+ if (strstr(type, "_ipp."))
+ scheme = "ipp";
+ else if (strstr(type, "_printer."))
+ scheme = "lpd";
+ else if (strstr(type, "_pdl-datastream."))
+ scheme = "socket";
+ else
+ scheme = "riousbprint";
+
+ /*
+ * Extract the "remote printer key from the TXT record...
+ */
+
+ if ((pair = avahi_string_list_find (txt, "rp")) != NULL)
+ {
+ avahi_string_list_get_pair (pair, NULL, &value, &valueLen);
+ rp[0] = '/';
+ memcpy (rp + 1, value, valueLen);
+ rp[valueLen + 1] = '\0';
+ }
+ else
+ rp[0] = '\0';
+
+ /*
+ * Assemble the final device URI...
+ */
+
+ avahi_address_snprint (addr, AVAHI_ADDRESS_STR_MAX, address);
+ httpAssembleURI(HTTP_URI_CODING_ALL, poll_uribuf->uribuf.buffer,
+ poll_uribuf->uribuf.bufsize, scheme, NULL,
+ addr, port, rp);
+ DEBUG_printf(("avahi_resolve_uri_resolver_callback: Resolved URI is \"%s\"\n",
+ poll_uribuf->uribuf.buffer));
+ avahi_simple_poll_quit (poll_uribuf->poll);
+}
+#endif /* HAVE_AVAHI */
+
/*
* End of "$Id: http-support.c 8179 2008-12-10 05:03:11Z mike $".
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