diff options
Diffstat (limited to 'abs/extra/cups/cups-avahi-2-backend.patch')
| -rw-r--r-- | abs/extra/cups/cups-avahi-2-backend.patch | 1118 |
1 files changed, 1118 insertions, 0 deletions
diff --git a/abs/extra/cups/cups-avahi-2-backend.patch b/abs/extra/cups/cups-avahi-2-backend.patch new file mode 100644 index 0000000..00e12a0 --- /dev/null +++ b/abs/extra/cups/cups-avahi-2-backend.patch @@ -0,0 +1,1118 @@ +diff -up cups-1.5.3/backend/dnssd.c.avahi-2-backend cups-1.5.3/backend/dnssd.c +--- cups-1.5.3/backend/dnssd.c.avahi-2-backend 2012-05-15 16:53:18.164774446 +0200 ++++ cups-1.5.3/backend/dnssd.c 2012-05-15 17:09:07.684155704 +0200 +@@ -15,14 +15,21 @@ + * + * Contents: + * ++ * next_txt_record() - Get next TXT record from a cups_txt_records_t. ++ * parse_txt_record_pair() - Read key/value pair in cups_txt_records_t. + * main() - Browse for printers. + * browse_callback() - Browse devices. + * browse_local_callback() - Browse local devices. + * compare_devices() - Compare two devices. + * exec_backend() - Execute the backend that corresponds to the + * resolved service name. ++ * device_type() - Get DNS-SD type enumeration from string. + * get_device() - Create or update a device. + * query_callback() - Process query data. ++ * avahi_client_callback() - Avahi client callback function. ++ * avahi_query_callback() - Avahi query callback function. ++ * avahi_browse_callback() - Avahi browse callback function. ++ * find_device() - Find a device from its name and domain. + * sigterm_handler() - Handle termination signals... + * unquote() - Unquote a name string. + */ +@@ -33,7 +40,18 @@ + + #include "backend-private.h" + #include <cups/array.h> +-#include <dns_sd.h> ++#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> ++# include <avahi-common/domain.h> ++# include <avahi-common/error.h> ++# include <avahi-common/malloc.h> ++#define kDNSServiceMaxDomainName AVAHI_DOMAIN_NAME_MAX ++#endif /* HAVE_AVAHI */ + + + /* +@@ -53,7 +71,12 @@ typedef enum + + typedef struct + { ++#ifdef HAVE_DNSSD + DNSServiceRef ref; /* Service reference for resolve */ ++#endif /* HAVE_DNSSD */ ++#ifdef HAVE_AVAHI ++ int resolved; /* Did we resolve the device? */ ++#endif /* HAVE_AVAHI */ + char *name, /* Service name */ + *domain, /* Domain name */ + *fullName, /* Full name */ +@@ -65,6 +88,20 @@ typedef struct + sent; /* Did we list the device? */ + } cups_device_t; + ++typedef struct ++{ ++ char key[256]; ++ char value[256]; ++ ++#ifdef HAVE_DNSSD ++ const uint8_t *data; ++ const uint8_t *datanext; ++ const uint8_t *dataend; ++#else /* HAVE_AVAHI */ ++ AvahiStringList *txt; ++#endif /* HAVE_DNSSD */ ++} cups_txt_records_t; ++ + + /* + * Local globals... +@@ -78,6 +115,7 @@ static int job_canceled = 0; + * Local functions... + */ + ++#ifdef HAVE_DNSSD + static void browse_callback(DNSServiceRef sdRef, + DNSServiceFlags flags, + uint32_t interfaceIndex, +@@ -95,13 +133,6 @@ static void browse_local_callback(DNSSe + const char *replyDomain, + void *context) + __attribute__((nonnull(1,5,6,7,8))); +-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) +- __attribute__((nonnull(1,2,3,4))); + static void query_callback(DNSServiceRef sdRef, + DNSServiceFlags flags, + uint32_t interfaceIndex, +@@ -111,10 +142,119 @@ static void query_callback(DNSServiceRe + const void *rdata, uint32_t ttl, + void *context) + __attribute__((nonnull(1,5,9,11))); ++#endif /* HAVE_DNSSD */ ++#ifdef HAVE_AVAHI ++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); ++#endif /* HAVE_AVAHI */ ++static cups_device_t * find_device (cups_array_t *devices, ++ cups_txt_records_t *txt, ++ cups_device_t *dkey); ++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) ++ __attribute__((nonnull(1,2,3,4))); + static void sigterm_handler(int sig); + static void unquote(char *dst, const char *src, size_t dstsize) + __attribute__((nonnull(1,2))); + ++#ifdef HAVE_AVAHI ++static AvahiSimplePoll *simple_poll = NULL; ++static int avahi_got_callback; ++#endif /* HAVE_AVAHI */ ++ ++ ++/* ++ * 'next_txt_record()' - Get next TXT record from a cups_txt_records_t. ++ */ ++ ++static cups_txt_records_t * ++next_txt_record (cups_txt_records_t *txt) ++{ ++#ifdef HAVE_DNSSD ++ txt->data = txt->datanext; ++#else /* HAVE_AVAHI */ ++ txt->txt = avahi_string_list_get_next (txt->txt); ++ if (txt->txt == NULL) ++ return NULL; ++#endif /* HAVE_DNSSD */ ++ ++ return txt; ++} ++ ++ ++/* ++ * 'parse_txt_record_pair()' - Read key/value pair in cups_txt_records_t. ++ */ ++ ++static int ++parse_txt_record_pair (cups_txt_records_t *txt) ++{ ++#ifdef HAVE_DNSSD ++ uint8_t datalen; ++ uint8_t *data = txt->data; ++ char *ptr; ++ ++ /* ++ * Read a key/value pair starting with an 8-bit length. Since the ++ * length is 8 bits and the size of the key/value buffers is 256, we ++ * don't need to check for overflow... ++ */ ++ ++ datalen = *data++; ++ if (!datalen || (data + datalen) > txt->dataend) ++ return NULL; ++ txt->datanext = data + datalen; ++ ++ for (ptr = txt->key; data < txt->datanext && *data != '='; data ++) ++ *ptr++ = *data; ++ *ptr = '\0'; ++ ++ if (data < txt->datanext && *data == '=') ++ { ++ data++; ++ ++ if (data < datanext) ++ memcpy (txt->value, data, txt->datanext - data); ++ value[txt->datanext - data] = '\0'; ++ } ++ else ++ return 1; ++#else /* HAVE_AVAHI */ ++ char *key, *value; ++ size_t len; ++ avahi_string_list_get_pair (txt->txt, &key, &value, &len); ++ if (len > sizeof (txt->value) - 1) ++ len = sizeof (txt->value) - 1; ++ ++ memcpy (txt->value, value, len); ++ txt->value[len] = '\0'; ++ len = strlen (key); ++ if (len > sizeof (txt->key) - 1) ++ len = sizeof (txt->key) - 1; ++ ++ memcpy (txt->key, key, len); ++ txt->key[len] = '\0'; ++ avahi_free (key); ++ avahi_free (value); ++#endif /* HAVE_AVAHI */ ++ ++ return 0; ++} ++ + + /* + * 'main()' - Browse for printers. +@@ -125,6 +265,13 @@ main(int argc, /* I - Number of comm + char *argv[]) /* I - Command-line arguments */ + { + const char *name; /* Backend name */ ++ cups_array_t *devices; /* Device array */ ++ cups_device_t *device; /* Current device */ ++ char uriName[1024]; /* Unquoted fullName for URI */ ++#ifdef HAVE_DNSSD ++ int fd; /* Main file descriptor */ ++ fd_set input; /* Input set for select() */ ++ struct timeval timeout; /* Timeout for select() */ + DNSServiceRef main_ref, /* Main service reference */ + fax_ipp_ref, /* IPP fax service reference */ + ipp_ref, /* IPP service reference */ +@@ -138,12 +285,11 @@ 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 */ +- char uriName[1024]; /* Unquoted fullName for URI */ ++#endif /* HAVE_DNSSD */ ++#ifdef HAVE_AVAHI ++ AvahiClient *client; ++ int error; ++#endif /* HAVE_AVAHI */ + #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) + struct sigaction action; /* Actions for POSIX signals */ + #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ +@@ -203,6 +349,49 @@ 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 ("DEBUG: Unable to create avahi client"); ++ return (0); ++ } ++ ++ 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); ++#endif /* HAVE_AVAHI */ ++#ifdef HAVE_DNSSD + if (DNSServiceCreateConnection(&main_ref) != kDNSServiceErr_NoError) + { + perror("ERROR: Unable to create service connection"); +@@ -263,6 +452,7 @@ main(int argc, /* I - Number of comm + riousbprint_ref = main_ref; + DNSServiceBrowse(&riousbprint_ref, kDNSServiceFlagsShareConnection, 0, + "_riousbprint._tcp", NULL, browse_callback, devices); ++#endif /* HAVE_DNSSD */ + + /* + * Loop until we are killed... +@@ -270,6 +460,9 @@ main(int argc, /* I - Number of comm + + while (!job_canceled) + { ++ int announce = 0; ++ ++#ifdef HAVE_DNSSD + FD_ZERO(&input); + FD_SET(fd, &input); + +@@ -289,11 +482,35 @@ main(int argc, /* I - Number of comm + } + else + { ++ announce = 1; ++ } ++#else /* 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; ++#endif /* HAVE_DNSSD */ ++ ++ if (announce) ++ { + /* + * Announce any devices we've found... + */ + ++#ifdef HAVE_DNSSD + DNSServiceErrorType status; /* DNS query status */ ++#endif /* HAVE_DNSSD */ + cups_device_t *best; /* Best matching device */ + char device_uri[1024]; /* Device URI */ + int count; /* Number of queries */ +@@ -307,6 +524,7 @@ main(int argc, /* I - Number of comm + if (device->sent) + sent ++; + ++#ifdef HAVE_DNSSD + if (device->ref) + count ++; + +@@ -338,14 +556,23 @@ main(int argc, /* I - Number of comm + count ++; + } + } +- else if (!device->sent) ++ else ++#endif /* HAVE_DNSSD */ ++#ifdef HAVE_AVAHI ++ if (!device->resolved) ++ continue; ++ else ++#endif /* HAVE_AVAHI */ ++ if (!device->sent) + { ++#ifdef HAVE_DNSSD + /* + * Got the TXT records, now report the device... + */ + + DNSServiceRefDeallocate(device->ref); + device->ref = 0; ++#endif /* HAVE_DNSSD */ + + if (!best) + best = device; +@@ -406,6 +633,7 @@ main(int argc, /* I - Number of comm + } + + ++#ifdef HAVE_DNSSD + /* + * 'browse_callback()' - Browse devices. + */ +@@ -494,6 +722,7 @@ browse_local_callback( + device->fullName); + device->sent = 1; + } ++#endif /* HAVE_DNSSD */ + + + /* +@@ -574,6 +803,41 @@ exec_backend(char **argv) /* I - Comman + + + /* ++ * 'device_type()' - Get DNS-SD type enumeration from string. ++ */ ++ ++static int ++device_type (const char *regtype) ++{ ++#ifdef HAVE_AVAHI ++ if (!strcmp(regtype, "_ipp._tcp")) ++ return (CUPS_DEVICE_IPP); ++ else if (!strcmp(regtype, "_ipps._tcp") || ++ !strcmp(regtype, "_ipp-tls._tcp")) ++ return (CUPS_DEVICE_IPPS); ++ else if (!strcmp(regtype, "_fax-ipp._tcp")) ++ return (CUPS_DEVICE_FAX_IPP); ++ else if (!strcmp(regtype, "_printer._tcp")) ++ return (CUPS_DEVICE_PDL_DATASTREAM); ++#else ++ if (!strcmp(regtype, "_ipp._tcp.")) ++ return (CUPS_DEVICE_IPP); ++ else if (!strcmp(regtype, "_ipps._tcp.") || ++ !strcmp(regtype, "_ipp-tls._tcp.")) ++ return (CUPS_DEVICE_IPPS); ++ 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); ++} ++ ++ ++/* + * 'get_device()' - Create or update a device. + */ + +@@ -594,20 +858,7 @@ get_device(cups_array_t *devices, /* I - + */ + + key.name = (char *)serviceName; +- +- if (!strcmp(regtype, "_ipp._tcp.")) +- key.type = CUPS_DEVICE_IPP; +- else if (!strcmp(regtype, "_ipps._tcp.") || +- !strcmp(regtype, "_ipp-tls._tcp.")) +- key.type = CUPS_DEVICE_IPPS; +- 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; +@@ -627,8 +878,14 @@ get_device(cups_array_t *devices, /* I - + free(device->domain); + device->domain = strdup(replyDomain); + ++#ifdef HAVE_DNSSD + DNSServiceConstructFullName(fullName, device->name, regtype, + replyDomain); ++#else /* HAVE_AVAHI */ ++ avahi_service_name_join (fullName, kDNSServiceMaxDomainName, ++ serviceName, regtype, replyDomain); ++#endif /* HAVE_DNSSD */ ++ + free(device->fullName); + device->fullName = strdup(fullName); + } +@@ -648,6 +905,9 @@ get_device(cups_array_t *devices, /* I - + device->domain = strdup(replyDomain); + device->type = key.type; + device->priority = 50; ++#ifdef HAVE_AVAHI ++ device->resolved = 0; ++#endif /* HAVE_AVAHI */ + + cupsArrayAdd(devices, device); + +@@ -655,13 +915,20 @@ get_device(cups_array_t *devices, /* I - + * Set the "full name" of this service, which is used for queries... + */ + ++#ifdef HAVE_DNSSD + DNSServiceConstructFullName(fullName, serviceName, regtype, replyDomain); ++#else /* HAVE_AVAHI */ ++ avahi_service_name_join (fullName, kDNSServiceMaxDomainName, ++ serviceName, regtype, replyDomain); ++#endif /* HAVE_DNSSD */ ++ + device->fullName = strdup(fullName); + + return (device); + } + + ++#ifdef HAVE_DNSSD + /* + * 'query_callback()' - Process query data. + */ +@@ -685,7 +952,7 @@ query_callback( + *ptr; /* Pointer into string */ + cups_device_t dkey, /* Search key */ + *device; /* Device */ +- ++ cups_txt_records_t txt; + + fprintf(stderr, "DEBUG2: query_callback(sdRef=%p, flags=%x, " + "interfaceIndex=%d, errorCode=%d, fullName=\"%s\", " +@@ -719,94 +986,233 @@ query_callback( + if ((ptr = strstr(name, "._")) != NULL) + *ptr = '\0'; + +- if (strstr(fullName, "_ipp._tcp.")) +- dkey.type = CUPS_DEVICE_IPP; +- else if (strstr(fullName, "_ipps._tcp.") || +- strstr(fullName, "_ipp-tls._tcp.")) +- dkey.type = CUPS_DEVICE_IPPS; +- else if (strstr(fullName, "_fax-ipp._tcp.")) +- dkey.type = CUPS_DEVICE_FAX_IPP; +- else if (strstr(fullName, "_printer._tcp.")) +- dkey.type = CUPS_DEVICE_PRINTER; +- else if (strstr(fullName, "_pdl-datastream._tcp.")) +- dkey.type = CUPS_DEVICE_PDL_DATASTREAM; ++ dkey.type = device_type (fullName); ++ ++ txt.data = rdata; ++ txt.dataend = rdata + rdlen; ++ device = find_device ((cups_array_t *) context, &txt, &dkey); ++ if (!device) ++ fprintf(stderr, "DEBUG: Ignoring TXT record for \"%s\"...\n", fullName); ++} ++#endif /* HAVE_DNSSD */ ++ ++ ++#ifdef HAVE_AVAHI ++/* ++ * 'avahi_client_callback()' - Avahi client callback function. ++ */ ++ ++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); ++ } ++} ++ ++ ++/* ++ * 'avahi_query_callback()' - Avahi query callback function. ++ */ ++ ++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) ++{ ++ AvahiClient *client; ++ cups_device_t key, ++ *device; ++ char uqname[1024], ++ *ptr; ++ cups_txt_records_t txtr; ++ ++ 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); ++ ++ /* ++ * Find the device and the the TXT information. ++ */ ++ ++ txtr.txt = txt; ++ device = find_device ((cups_array_t *) context, &txtr, &key); ++ if (device) ++ { ++ /* ++ * Let the main loop know to announce the device. ++ */ ++ ++ device->resolved = 1; ++ avahi_got_callback = 1; ++ } + else +- dkey.type = CUPS_DEVICE_RIOUSBPRINT; ++ fprintf (stderr, "DEBUG: Ignoring TXT record for \"%s\"...\n", name); + +- for (device = cupsArrayFind(devices, &dkey); ++ avahi_service_resolver_free (resolver); ++} ++ ++ ++/* ++ * 'avahi_browse_callback()' - Avahi browse callback function. ++ */ ++ ++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; ++ } ++} ++#endif /* HAVE_AVAHI */ ++ ++ ++/* ++ * 'find_device()' - Find a device from its name and domain. ++ */ ++ ++static cups_device_t * ++find_device (cups_array_t *devices, ++ cups_txt_records_t *txt, ++ cups_device_t *dkey) ++{ ++ cups_device_t *device; ++ char *ptr; ++ ++ for (device = cupsArrayFind(devices, dkey); + device; + device = cupsArrayNext(devices)) + { +- if (_cups_strcasecmp(device->name, dkey.name) || +- _cups_strcasecmp(device->domain, dkey.domain)) ++ if (_cups_strcasecmp(device->name, dkey->name) || ++ _cups_strcasecmp(device->domain, dkey->domain)) + { + device = NULL; + break; + } +- else if (device->type == dkey.type) ++ else if (device->type == dkey->type) + { + /* + * Found it, pull out the priority and make and model from the TXT + * record and save it... + */ + +- const uint8_t *data, /* Pointer into data */ +- *datanext, /* Next key/value pair */ +- *dataend; /* End of entire TXT record */ +- uint8_t datalen; /* Length of current key/value pair */ +- char key[256], /* Key string */ +- value[256], /* Value string */ +- make_and_model[512], ++ char make_and_model[512], + /* Manufacturer and model */ + model[256], /* Model */ +- device_id[2048];/* 1284 device ID */ +- ++ device_id[2048]; /* 1284 device ID */ + + device_id[0] = '\0'; + make_and_model[0] = '\0'; + + strcpy(model, "Unknown"); + +- for (data = rdata, dataend = data + rdlen; +- data < dataend; +- data = datanext) ++ for (;;) + { +- /* +- * Read a key/value pair starting with an 8-bit length. Since the +- * length is 8 bits and the size of the key/value buffers is 256, we +- * don't need to check for overflow... +- */ +- +- datalen = *data++; +- +- if (!datalen || (data + datalen) > dataend) +- break; +- +- datanext = data + datalen; +- +- for (ptr = key; data < datanext && *data != '='; data ++) +- *ptr++ = *data; +- *ptr = '\0'; ++ char *key; ++ char *value; + +- if (data < datanext && *data == '=') +- { +- data ++; +- +- if (data < datanext) +- memcpy(value, data, datanext - data); +- value[datanext - data] = '\0'; ++ if (parse_txt_record_pair (txt)) ++ goto next; + +- fprintf(stderr, "DEBUG2: query_callback: \"%s=%s\".\n", +- key, value); +- } +- else +- { +- fprintf(stderr, "DEBUG2: query_callback: \"%s\" with no value.\n", +- key); +- continue; +- } +- +- if (!_cups_strncasecmp(key, "usb_", 4)) ++ key = txt->key; ++ value = txt->value; ++ if (!strncasecmp(key, "usb_", 4)) + { + /* + * Add USB device ID information... +@@ -861,6 +1267,10 @@ query_callback( + if (device->type == CUPS_DEVICE_PRINTER) + device->sent = 1; + } ++ ++ next: ++ if (next_txt_record (txt) == NULL) ++ break; + } + + if (device->device_id) +@@ -917,11 +1327,9 @@ query_callback( + } + } + +- if (!device) +- fprintf(stderr, "DEBUG: Ignoring TXT record for \"%s\"...\n", fullName); ++ return device; + } + +- + /* + * 'sigterm_handler()' - Handle termination signals... + */ +diff -up cups-1.5.3/cups/http-support.c.avahi-2-backend cups-1.5.3/cups/http-support.c +--- cups-1.5.3/cups/http-support.c.avahi-2-backend 2012-02-15 02:06:12.000000000 +0100 ++++ cups-1.5.3/cups/http-support.c 2012-05-15 17:04:51.045944634 +0200 +@@ -43,6 +43,10 @@ + * http_copy_decode() - Copy and decode a URI. + * http_copy_encode() - Copy and encode a URI. + * http_resolve_cb() - Build a device URI for the given service name. ++ * avahi_resolve_uri_client_cb() ++ * - Avahi client callback for resolving URI. ++ * avahi_resolve_uri_resolver_cb() ++ * - Avahi resolver callback for resolving URI. + */ + + /* +@@ -60,6 +64,11 @@ + # include <sys/select.h> + # endif /* WIN32 */ + #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 */ + + + /* +@@ -127,6 +136,24 @@ static void DNSSD_API http_resolve_cb(DN + void *context); + #endif /* HAVE_DNSSD */ + ++#ifdef HAVE_AVAHI ++static void avahi_resolve_uri_client_cb(AvahiClient *client, ++ AvahiClientState state, ++ void *simple_poll); ++static void avahi_resolve_uri_resolver_cb(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 +@@ -1434,6 +1461,9 @@ _httpResolveURI( + + if (strstr(hostname, "._tcp")) + { ++#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) ++ char *regtype, /* Pointer to type in hostname */ ++ *domain; /* Pointer to domain in hostname */ + #ifdef HAVE_DNSSD + # ifdef WIN32 + # pragma comment(lib, "dnssd.lib") +@@ -1452,6 +1482,17 @@ _httpResolveURI( + fd_set input_set; /* Input set for select() */ + struct timeval stimeout; /* Timeout value for select() */ + #endif /* HAVE_POLL */ ++#else /* HAVE_AVAHI */ ++ AvahiSimplePoll *simple_poll; ++ AvahiClient *client; ++ int error; ++ struct ++ { ++ AvahiSimplePoll *poll; ++ _http_uribuf_t uribuf; ++ } user_data; ++#endif /* HAVE_DNSSD */ ++ + + if (options & _HTTP_RESOLVE_STDERR) + fprintf(stderr, "DEBUG: Resolving \"%s\"...\n", hostname); +@@ -1488,9 +1529,16 @@ _httpResolveURI( + if (domain) + *domain++ = '\0'; + ++#ifdef HAVE_DNSSD + uribuf.buffer = resolved_uri; + uribuf.bufsize = resolved_size; + uribuf.options = options; ++#else ++ user_data.uribuf.buffer = resolved_uri; ++ user_data.uribuf.bufsize = resolved_size; ++ user_data.uribuf.options = options; ++#endif ++ + resolved_uri[0] = '\0'; + + DEBUG_printf(("6_httpResolveURI: Resolving hostname=\"%s\", regtype=\"%s\", " +@@ -1504,6 +1552,7 @@ _httpResolveURI( + + uri = NULL; + ++#ifdef HAVE_DNSSD + if (DNSServiceCreateConnection(&ref) == kDNSServiceErr_NoError) + { + localref = ref; +@@ -1611,6 +1660,36 @@ _httpResolveURI( + + DNSServiceRefDeallocate(ref); + } ++#else /* HAVE_AVAHI */ ++ if ((simple_poll = avahi_simple_poll_new ()) != NULL) ++ { ++ if ((client = avahi_client_new (avahi_simple_poll_get (simple_poll), ++ 0, avahi_resolve_uri_client_cb, ++ &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_cb, ++ &user_data) != NULL) ++ { ++ avahi_simple_poll_loop (simple_poll); ++ ++ /* ++ * Collect the result. ++ */ ++ ++ if (resolved_uri[0]) ++ uri = resolved_uri; ++ } ++ ++ avahi_client_free (client); ++ } ++ ++ avahi_simple_poll_free (simple_poll); ++ } ++#endif /* HAVE_DNSSD */ + + if (options & _HTTP_RESOLVE_STDERR) + { +@@ -1622,13 +1701,13 @@ _httpResolveURI( + fputs("STATE: -connecting-to-device,offline-report\n", stderr); + } + +-#else ++#else /* HAVE_DNSSD || HAVE_AVAHI */ + /* + * No DNS-SD support... + */ + + uri = NULL; +-#endif /* HAVE_DNSSD */ ++#endif /* HAVE_DNSSD || HAVE_AVAHI */ + + if ((options & _HTTP_RESOLVE_STDERR) && !uri) + _cupsLangPrintFilter(stderr, "ERROR", _("Unable to find printer.")); +@@ -1916,6 +1995,115 @@ http_resolve_cb( + } + #endif /* HAVE_DNSSD */ + ++#ifdef HAVE_AVAHI ++/* ++ * 'avahi_resolve_uri_client_cb()' - Avahi client callback for resolving URI. ++ */ ++ ++static void ++avahi_resolve_uri_client_cb (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); ++} ++ ++ ++/* ++ * 'avahi_resolve_uri_resolver_cb()' - Avahi resolver callback for resolving ++ * URI. ++ */ ++ ++static void ++avahi_resolve_uri_resolver_cb (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 10284 2012-02-15 01:06:12Z mike $".
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