/
dest-options.c
2851 lines (2335 loc) · 77 KB
/
dest-options.c
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/*
* Destination option/media support for CUPS.
*
* Copyright © 2012-2019 by Apple Inc.
*
* Licensed under Apache License v2.0. See the file "LICENSE" for more
* information.
*/
/*
* Include necessary headers...
*/
#include "cups-private.h"
#include "debug-internal.h"
/*
* Local constants...
*/
#define _CUPS_MEDIA_READY_TTL 30 /* Life of xxx-ready values */
/*
* Local functions...
*/
static void cups_add_dconstres(cups_array_t *a, ipp_t *collection);
static int cups_collection_contains(ipp_t *test, ipp_t *match);
static size_t cups_collection_string(ipp_attribute_t *attr, char *buffer, size_t bufsize) _CUPS_NONNULL((1,2));
static int cups_compare_dconstres(_cups_dconstres_t *a,
_cups_dconstres_t *b);
static int cups_compare_media_db(_cups_media_db_t *a,
_cups_media_db_t *b);
static _cups_media_db_t *cups_copy_media_db(_cups_media_db_t *mdb);
static void cups_create_cached(http_t *http, cups_dinfo_t *dinfo,
unsigned flags);
static void cups_create_constraints(cups_dinfo_t *dinfo);
static void cups_create_defaults(cups_dinfo_t *dinfo);
static void cups_create_media_db(cups_dinfo_t *dinfo,
unsigned flags);
static void cups_free_media_db(_cups_media_db_t *mdb);
static int cups_get_media_db(http_t *http, cups_dinfo_t *dinfo,
pwg_media_t *pwg, unsigned flags,
cups_size_t *size);
static int cups_is_close_media_db(_cups_media_db_t *a,
_cups_media_db_t *b);
static cups_array_t *cups_test_constraints(cups_dinfo_t *dinfo,
const char *new_option,
const char *new_value,
int num_options,
cups_option_t *options,
int *num_conflicts,
cups_option_t **conflicts);
static void cups_update_ready(http_t *http, cups_dinfo_t *dinfo);
/*
* 'cupsAddDestMediaOptions()' - Add the option corresponding to the specified media size.
*
* @since CUPS 2.3/macOS 10.14@
*/
int /* O - New number of options */
cupsAddDestMediaOptions(
http_t *http, /* I - Connection to destination */
cups_dest_t *dest, /* I - Destination */
cups_dinfo_t *dinfo, /* I - Destination information */
unsigned flags, /* I - Media matching flags */
cups_size_t *size, /* I - Media size */
int num_options, /* I - Current number of options */
cups_option_t **options) /* IO - Options */
{
cups_array_t *db; /* Media database */
_cups_media_db_t *mdb; /* Media database entry */
char value[2048]; /* Option value */
/*
* Range check input...
*/
if (!http || !dest || !dinfo || !size || !options)
{
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
return (num_options);
}
/*
* Find the matching media size...
*/
if (flags & CUPS_MEDIA_FLAGS_READY)
db = dinfo->ready_db;
else
db = dinfo->media_db;
DEBUG_printf(("1cupsAddDestMediaOptions: size->media=\"%s\"", size->media));
for (mdb = (_cups_media_db_t *)cupsArrayFirst(db); mdb; mdb = (_cups_media_db_t *)cupsArrayNext(db))
{
if (mdb->key && !strcmp(mdb->key, size->media))
break;
else if (mdb->size_name && !strcmp(mdb->size_name, size->media))
break;
}
if (!mdb)
{
for (mdb = (_cups_media_db_t *)cupsArrayFirst(db); mdb; mdb = (_cups_media_db_t *)cupsArrayNext(db))
{
if (mdb->width == size->width && mdb->length == size->length && mdb->bottom == size->bottom && mdb->left == size->left && mdb->right == size->right && mdb->top == size->top)
break;
}
}
if (!mdb)
{
for (mdb = (_cups_media_db_t *)cupsArrayFirst(db); mdb; mdb = (_cups_media_db_t *)cupsArrayNext(db))
{
if (mdb->width == size->width && mdb->length == size->length)
break;
}
}
if (!mdb)
{
DEBUG_puts("1cupsAddDestMediaOptions: Unable to find matching size.");
return (num_options);
}
DEBUG_printf(("1cupsAddDestMediaOptions: MATCH mdb%p [key=\"%s\" size_name=\"%s\" source=\"%s\" type=\"%s\" width=%d length=%d B%d L%d R%d T%d]", (void *)mdb, mdb->key, mdb->size_name, mdb->source, mdb->type, mdb->width, mdb->length, mdb->bottom, mdb->left, mdb->right, mdb->top));
if (mdb->source)
{
if (mdb->type)
snprintf(value, sizeof(value), "{media-size={x-dimension=%d y-dimension=%d} media-bottom-margin=%d media-left-margin=%d media-right-margin=%d media-top-margin=%d media-source=\"%s\" media-type=\"%s\"}", mdb->width, mdb->length, mdb->bottom, mdb->left, mdb->right, mdb->top, mdb->source, mdb->type);
else
snprintf(value, sizeof(value), "{media-size={x-dimension=%d y-dimension=%d} media-bottom-margin=%d media-left-margin=%d media-right-margin=%d media-top-margin=%d media-source=\"%s\"}", mdb->width, mdb->length, mdb->bottom, mdb->left, mdb->right, mdb->top, mdb->source);
}
else if (mdb->type)
{
snprintf(value, sizeof(value), "{media-size={x-dimension=%d y-dimension=%d} media-bottom-margin=%d media-left-margin=%d media-right-margin=%d media-top-margin=%d media-type=\"%s\"}", mdb->width, mdb->length, mdb->bottom, mdb->left, mdb->right, mdb->top, mdb->type);
}
else
{
snprintf(value, sizeof(value), "{media-size={x-dimension=%d y-dimension=%d} media-bottom-margin=%d media-left-margin=%d media-right-margin=%d media-top-margin=%d}", mdb->width, mdb->length, mdb->bottom, mdb->left, mdb->right, mdb->top);
}
num_options = cupsAddOption("media-col", value, num_options, options);
return (num_options);
}
/*
* 'cupsCheckDestSupported()' - Check that the option and value are supported
* by the destination.
*
* Returns 1 if supported, 0 otherwise.
*
* @since CUPS 1.6/macOS 10.8@
*/
int /* O - 1 if supported, 0 otherwise */
cupsCheckDestSupported(
http_t *http, /* I - Connection to destination */
cups_dest_t *dest, /* I - Destination */
cups_dinfo_t *dinfo, /* I - Destination information */
const char *option, /* I - Option */
const char *value) /* I - Value or @code NULL@ */
{
int i; /* Looping var */
char temp[1024]; /* Temporary string */
int int_value; /* Integer value */
int xres_value, /* Horizontal resolution */
yres_value; /* Vertical resolution */
ipp_res_t units_value; /* Resolution units */
ipp_attribute_t *attr; /* Attribute */
_ipp_value_t *attrval; /* Current attribute value */
_ipp_option_t *map; /* Option mapping information */
/*
* Get the default connection as needed...
*/
if (!http)
http = _cupsConnect();
/*
* Range check input...
*/
if (!http || !dest || !dinfo || !option)
return (0);
/*
* Lookup the attribute...
*/
if (strstr(option, "-supported"))
attr = ippFindAttribute(dinfo->attrs, option, IPP_TAG_ZERO);
else
{
snprintf(temp, sizeof(temp), "%s-supported", option);
attr = ippFindAttribute(dinfo->attrs, temp, IPP_TAG_ZERO);
}
if (!attr)
return (0);
if (!value)
return (1);
/*
* Compare values...
*/
if (!strcmp(option, "media") && !strncmp(value, "custom_", 7))
{
/*
* Check range of custom media sizes...
*/
pwg_media_t *pwg; /* Current PWG media size info */
int min_width, /* Minimum width */
min_length, /* Minimum length */
max_width, /* Maximum width */
max_length; /* Maximum length */
/*
* Get the minimum and maximum size...
*/
min_width = min_length = INT_MAX;
max_width = max_length = 0;
for (i = attr->num_values, attrval = attr->values;
i > 0;
i --, attrval ++)
{
if (!strncmp(attrval->string.text, "custom_min_", 11) &&
(pwg = pwgMediaForPWG(attrval->string.text)) != NULL)
{
min_width = pwg->width;
min_length = pwg->length;
}
else if (!strncmp(attrval->string.text, "custom_max_", 11) &&
(pwg = pwgMediaForPWG(attrval->string.text)) != NULL)
{
max_width = pwg->width;
max_length = pwg->length;
}
}
/*
* Check the range...
*/
if (min_width < INT_MAX && max_width > 0 &&
(pwg = pwgMediaForPWG(value)) != NULL &&
pwg->width >= min_width && pwg->width <= max_width &&
pwg->length >= min_length && pwg->length <= max_length)
return (1);
}
else
{
/*
* Check literal values...
*/
map = _ippFindOption(option);
switch (attr->value_tag)
{
case IPP_TAG_INTEGER :
if (map && map->value_tag == IPP_TAG_STRING)
return (strlen(value) <= (size_t)attr->values[0].integer);
case IPP_TAG_ENUM :
int_value = atoi(value);
for (i = 0; i < attr->num_values; i ++)
if (attr->values[i].integer == int_value)
return (1);
break;
case IPP_TAG_BOOLEAN :
return (attr->values[0].boolean);
case IPP_TAG_RANGE :
if (map && map->value_tag == IPP_TAG_STRING)
int_value = (int)strlen(value);
else
int_value = atoi(value);
for (i = 0; i < attr->num_values; i ++)
if (int_value >= attr->values[i].range.lower &&
int_value <= attr->values[i].range.upper)
return (1);
break;
case IPP_TAG_RESOLUTION :
if (sscanf(value, "%dx%d%15s", &xres_value, &yres_value, temp) != 3)
{
if (sscanf(value, "%d%15s", &xres_value, temp) != 2)
return (0);
yres_value = xres_value;
}
if (!strcmp(temp, "dpi"))
units_value = IPP_RES_PER_INCH;
else if (!strcmp(temp, "dpc") || !strcmp(temp, "dpcm"))
units_value = IPP_RES_PER_CM;
else
return (0);
for (i = attr->num_values, attrval = attr->values;
i > 0;
i --, attrval ++)
{
if (attrval->resolution.xres == xres_value &&
attrval->resolution.yres == yres_value &&
attrval->resolution.units == units_value)
return (1);
}
break;
case IPP_TAG_TEXT :
case IPP_TAG_NAME :
case IPP_TAG_KEYWORD :
case IPP_TAG_CHARSET :
case IPP_TAG_URI :
case IPP_TAG_URISCHEME :
case IPP_TAG_MIMETYPE :
case IPP_TAG_LANGUAGE :
case IPP_TAG_TEXTLANG :
case IPP_TAG_NAMELANG :
for (i = 0; i < attr->num_values; i ++)
if (!strcmp(attr->values[i].string.text, value))
return (1);
break;
default :
break;
}
}
/*
* If we get there the option+value is not supported...
*/
return (0);
}
/*
* 'cupsCopyDestConflicts()' - Get conflicts and resolutions for a new
* option/value pair.
*
* "num_options" and "options" represent the currently selected options by the
* user. "new_option" and "new_value" are the setting the user has just
* changed.
*
* Returns 1 if there is a conflict, 0 if there are no conflicts, and -1 if
* there was an unrecoverable error such as a resolver loop.
*
* If "num_conflicts" and "conflicts" are not @code NULL@, they are set to
* contain the list of conflicting option/value pairs. Similarly, if
* "num_resolved" and "resolved" are not @code NULL@ they will be set to the
* list of changes needed to resolve the conflict.
*
* If cupsCopyDestConflicts returns 1 but "num_resolved" and "resolved" are set
* to 0 and @code NULL@, respectively, then the conflict cannot be resolved.
*
* @since CUPS 1.6/macOS 10.8@
*/
int /* O - 1 if there is a conflict, 0 if none, -1 on error */
cupsCopyDestConflicts(
http_t *http, /* I - Connection to destination */
cups_dest_t *dest, /* I - Destination */
cups_dinfo_t *dinfo, /* I - Destination information */
int num_options, /* I - Number of current options */
cups_option_t *options, /* I - Current options */
const char *new_option, /* I - New option */
const char *new_value, /* I - New value */
int *num_conflicts, /* O - Number of conflicting options */
cups_option_t **conflicts, /* O - Conflicting options */
int *num_resolved, /* O - Number of options to resolve */
cups_option_t **resolved) /* O - Resolved options */
{
int i, /* Looping var */
have_conflicts = 0, /* Do we have conflicts? */
changed, /* Did we change something? */
tries, /* Number of tries for resolution */
num_myconf = 0, /* My number of conflicting options */
num_myres = 0; /* My number of resolved options */
cups_option_t *myconf = NULL, /* My conflicting options */
*myres = NULL, /* My resolved options */
*myoption, /* My current option */
*option; /* Current option */
cups_array_t *active = NULL, /* Active conflicts */
*pass = NULL, /* Resolvers for this pass */
*resolvers = NULL, /* Resolvers we have used */
*test; /* Test array for conflicts */
_cups_dconstres_t *c, /* Current constraint */
*r; /* Current resolver */
ipp_attribute_t *attr; /* Current attribute */
char value[2048]; /* Current attribute value as string */
const char *myvalue; /* Current value of an option */
/*
* Clear returned values...
*/
if (num_conflicts)
*num_conflicts = 0;
if (conflicts)
*conflicts = NULL;
if (num_resolved)
*num_resolved = 0;
if (resolved)
*resolved = NULL;
/*
* Get the default connection as needed...
*/
if (!http)
http = _cupsConnect();
/*
* Range check input...
*/
if (!http || !dest || !dinfo ||
(num_conflicts != NULL) != (conflicts != NULL) ||
(num_resolved != NULL) != (resolved != NULL))
return (0);
/*
* Load constraints as needed...
*/
if (!dinfo->constraints)
cups_create_constraints(dinfo);
if (cupsArrayCount(dinfo->constraints) == 0)
return (0);
if (!dinfo->num_defaults)
cups_create_defaults(dinfo);
/*
* If we are resolving, create a shadow array...
*/
if (num_resolved)
{
for (i = num_options, option = options; i > 0; i --, option ++)
num_myres = cupsAddOption(option->name, option->value, num_myres, &myres);
if (new_option && new_value)
num_myres = cupsAddOption(new_option, new_value, num_myres, &myres);
}
else
{
num_myres = num_options;
myres = options;
}
/*
* Check for any conflicts...
*/
if (num_resolved)
pass = cupsArrayNew((cups_array_func_t)cups_compare_dconstres, NULL);
for (tries = 0; tries < 100; tries ++)
{
/*
* Check for any conflicts...
*/
if (num_conflicts || num_resolved)
{
cupsFreeOptions(num_myconf, myconf);
num_myconf = 0;
myconf = NULL;
active = cups_test_constraints(dinfo, new_option, new_value,
num_myres, myres, &num_myconf,
&myconf);
}
else
active = cups_test_constraints(dinfo, new_option, new_value, num_myres,
myres, NULL, NULL);
have_conflicts = (active != NULL);
if (!active || !num_resolved)
break; /* All done */
/*
* Scan the constraints that were triggered to apply resolvers...
*/
if (!resolvers)
resolvers = cupsArrayNew((cups_array_func_t)cups_compare_dconstres, NULL);
for (c = (_cups_dconstres_t *)cupsArrayFirst(active), changed = 0;
c;
c = (_cups_dconstres_t *)cupsArrayNext(active))
{
if (cupsArrayFind(pass, c))
continue; /* Already applied this resolver... */
if (cupsArrayFind(resolvers, c))
{
DEBUG_printf(("1cupsCopyDestConflicts: Resolver loop with %s.",
c->name));
have_conflicts = -1;
goto cleanup;
}
if ((r = cupsArrayFind(dinfo->resolvers, c)) == NULL)
{
DEBUG_printf(("1cupsCopyDestConflicts: Resolver %s not found.",
c->name));
have_conflicts = -1;
goto cleanup;
}
/*
* Add the options from the resolver...
*/
cupsArrayAdd(pass, r);
cupsArrayAdd(resolvers, r);
for (attr = ippFirstAttribute(r->collection);
attr;
attr = ippNextAttribute(r->collection))
{
if (new_option && !strcmp(attr->name, new_option))
continue; /* Ignore this if we just changed it */
if (ippAttributeString(attr, value, sizeof(value)) >= sizeof(value))
continue; /* Ignore if the value is too long */
if ((test = cups_test_constraints(dinfo, attr->name, value, num_myres,
myres, NULL, NULL)) == NULL)
{
/*
* That worked, flag it...
*/
changed = 1;
}
else
cupsArrayDelete(test);
/*
* Add the option/value from the resolver regardless of whether it
* worked; this makes sure that we can cascade several changes to
* make things resolve...
*/
num_myres = cupsAddOption(attr->name, value, num_myres, &myres);
}
}
if (!changed)
{
DEBUG_puts("1cupsCopyDestConflicts: Unable to resolve constraints.");
have_conflicts = -1;
goto cleanup;
}
cupsArrayClear(pass);
cupsArrayDelete(active);
active = NULL;
}
if (tries >= 100)
{
DEBUG_puts("1cupsCopyDestConflicts: Unable to resolve after 100 tries.");
have_conflicts = -1;
goto cleanup;
}
/*
* Copy resolved options as needed...
*/
if (num_resolved)
{
for (i = num_myres, myoption = myres; i > 0; i --, myoption ++)
{
if ((myvalue = cupsGetOption(myoption->name, num_options,
options)) == NULL ||
strcmp(myvalue, myoption->value))
{
if (new_option && !strcmp(new_option, myoption->name) &&
new_value && !strcmp(new_value, myoption->value))
continue;
*num_resolved = cupsAddOption(myoption->name, myoption->value,
*num_resolved, resolved);
}
}
}
/*
* Clean up...
*/
cleanup:
cupsArrayDelete(active);
cupsArrayDelete(pass);
cupsArrayDelete(resolvers);
if (num_resolved)
{
/*
* Free shadow copy of options...
*/
cupsFreeOptions(num_myres, myres);
}
if (num_conflicts)
{
/*
* Return conflicting options to caller...
*/
*num_conflicts = num_myconf;
*conflicts = myconf;
}
else
{
/*
* Free conflicting options...
*/
cupsFreeOptions(num_myconf, myconf);
}
return (have_conflicts);
}
/*
* 'cupsCopyDestInfo()' - Get the supported values/capabilities for the
* destination.
*
* The caller is responsible for calling @link cupsFreeDestInfo@ on the return
* value. @code NULL@ is returned on error.
*
* @since CUPS 1.6/macOS 10.8@
*/
cups_dinfo_t * /* O - Destination information */
cupsCopyDestInfo(
http_t *http, /* I - Connection to destination */
cups_dest_t *dest) /* I - Destination */
{
cups_dinfo_t *dinfo; /* Destination information */
unsigned dflags; /* Destination flags */
ipp_t *request, /* Get-Printer-Attributes request */
*response; /* Supported attributes */
int tries, /* Number of tries so far */
delay, /* Current retry delay */
prev_delay; /* Next retry delay */
const char *uri; /* Printer URI */
char resource[1024]; /* Resource path */
int version; /* IPP version */
ipp_status_t status; /* Status of request */
_cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */
static const char * const requested_attrs[] =
{ /* Requested attributes */
"job-template",
"media-col-database",
"printer-description"
};
DEBUG_printf(("cupsCopyDestInfo(http=%p, dest=%p(%s))", (void *)http, (void *)dest, dest ? dest->name : ""));
/*
* Get the default connection as needed...
*/
if (!http)
{
DEBUG_puts("1cupsCopyDestInfo: Default server connection.");
http = _cupsConnect();
dflags = CUPS_DEST_FLAGS_NONE;
}
#ifdef AF_LOCAL
else if (httpAddrFamily(http->hostaddr) == AF_LOCAL)
{
DEBUG_puts("1cupsCopyDestInfo: Connection to server (domain socket).");
dflags = CUPS_DEST_FLAGS_NONE;
}
#endif /* AF_LOCAL */
else if ((strcmp(http->hostname, cg->server) && cg->server[0] != '/') || cg->ipp_port != httpAddrPort(http->hostaddr))
{
DEBUG_printf(("1cupsCopyDestInfo: Connection to device (%s).", http->hostname));
dflags = CUPS_DEST_FLAGS_DEVICE;
}
else
{
DEBUG_printf(("1cupsCopyDestInfo: Connection to server (%s).", http->hostname));
dflags = CUPS_DEST_FLAGS_NONE;
}
/*
* Range check input...
*/
if (!http || !dest)
return (NULL);
/*
* Get the printer URI and resource path...
*/
if ((uri = _cupsGetDestResource(dest, dflags, resource, sizeof(resource))) == NULL)
{
DEBUG_puts("1cupsCopyDestInfo: Unable to get resource.");
return (NULL);
}
/*
* Get the supported attributes...
*/
delay = 1;
prev_delay = 1;
tries = 0;
version = 20;
do
{
/*
* Send a Get-Printer-Attributes request...
*/
request = ippNewRequest(IPP_OP_GET_PRINTER_ATTRIBUTES);
ippSetVersion(request, version / 10, version % 10);
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name", NULL, cupsUser());
ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD, "requested-attributes", (int)(sizeof(requested_attrs) / sizeof(requested_attrs[0])), NULL, requested_attrs);
response = cupsDoRequest(http, request, resource);
status = cupsLastError();
if (status > IPP_STATUS_OK_IGNORED_OR_SUBSTITUTED)
{
DEBUG_printf(("1cupsCopyDestInfo: Get-Printer-Attributes for '%s' returned %s (%s)", dest->name, ippErrorString(status), cupsLastErrorString()));
ippDelete(response);
response = NULL;
if ((status == IPP_STATUS_ERROR_BAD_REQUEST || status == IPP_STATUS_ERROR_VERSION_NOT_SUPPORTED) && version > 11)
{
version = 11;
}
else if (status == IPP_STATUS_ERROR_BUSY)
{
sleep((unsigned)delay);
delay = _cupsNextDelay(delay, &prev_delay);
}
else
return (NULL);
}
tries ++;
}
while (!response && tries < 10);
if (!response)
{
DEBUG_puts("1cupsCopyDestInfo: Unable to get printer attributes.");
return (NULL);
}
/*
* Allocate a cups_dinfo_t structure and return it...
*/
if ((dinfo = calloc(1, sizeof(cups_dinfo_t))) == NULL)
{
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0);
ippDelete(response);
return (NULL);
}
DEBUG_printf(("1cupsCopyDestInfo: version=%d, uri=\"%s\", resource=\"%s\".", version, uri, resource));
dinfo->version = version;
dinfo->uri = uri;
dinfo->resource = _cupsStrAlloc(resource);
dinfo->attrs = response;
return (dinfo);
}
/*
* 'cupsFindDestDefault()' - Find the default value(s) for the given option.
*
* The returned value is an IPP attribute. Use the @code ippGetBoolean@,
* @code ippGetCollection@, @code ippGetCount@, @code ippGetDate@,
* @code ippGetInteger@, @code ippGetOctetString@, @code ippGetRange@,
* @code ippGetResolution@, @code ippGetString@, and @code ippGetValueTag@
* functions to inspect the default value(s) as needed.
*
* @since CUPS 1.7/macOS 10.9@
*/
ipp_attribute_t * /* O - Default attribute or @code NULL@ for none */
cupsFindDestDefault(
http_t *http, /* I - Connection to destination */
cups_dest_t *dest, /* I - Destination */
cups_dinfo_t *dinfo, /* I - Destination information */
const char *option) /* I - Option/attribute name */
{
char name[IPP_MAX_NAME]; /* Attribute name */
/*
* Get the default connection as needed...
*/
if (!http)
http = _cupsConnect();
/*
* Range check input...
*/
if (!http || !dest || !dinfo || !option)
{
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
return (NULL);
}
/*
* Find and return the attribute...
*/
snprintf(name, sizeof(name), "%s-default", option);
return (ippFindAttribute(dinfo->attrs, name, IPP_TAG_ZERO));
}
/*
* 'cupsFindDestReady()' - Find the default value(s) for the given option.
*
* The returned value is an IPP attribute. Use the @code ippGetBoolean@,
* @code ippGetCollection@, @code ippGetCount@, @code ippGetDate@,
* @code ippGetInteger@, @code ippGetOctetString@, @code ippGetRange@,
* @code ippGetResolution@, @code ippGetString@, and @code ippGetValueTag@
* functions to inspect the default value(s) as needed.
*
* @since CUPS 1.7/macOS 10.9@
*/
ipp_attribute_t * /* O - Default attribute or @code NULL@ for none */
cupsFindDestReady(
http_t *http, /* I - Connection to destination */
cups_dest_t *dest, /* I - Destination */
cups_dinfo_t *dinfo, /* I - Destination information */
const char *option) /* I - Option/attribute name */
{
char name[IPP_MAX_NAME]; /* Attribute name */
/*
* Get the default connection as needed...
*/
if (!http)
http = _cupsConnect();
/*
* Range check input...
*/
if (!http || !dest || !dinfo || !option)
{
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
return (NULL);
}
/*
* Find and return the attribute...
*/
cups_update_ready(http, dinfo);
snprintf(name, sizeof(name), "%s-ready", option);
return (ippFindAttribute(dinfo->ready_attrs, name, IPP_TAG_ZERO));
}
/*
* 'cupsFindDestSupported()' - Find the default value(s) for the given option.
*
* The returned value is an IPP attribute. Use the @code ippGetBoolean@,
* @code ippGetCollection@, @code ippGetCount@, @code ippGetDate@,
* @code ippGetInteger@, @code ippGetOctetString@, @code ippGetRange@,
* @code ippGetResolution@, @code ippGetString@, and @code ippGetValueTag@
* functions to inspect the default value(s) as needed.
*
* @since CUPS 1.7/macOS 10.9@
*/
ipp_attribute_t * /* O - Default attribute or @code NULL@ for none */
cupsFindDestSupported(
http_t *http, /* I - Connection to destination */
cups_dest_t *dest, /* I - Destination */
cups_dinfo_t *dinfo, /* I - Destination information */
const char *option) /* I - Option/attribute name */
{
char name[IPP_MAX_NAME]; /* Attribute name */
/*
* Get the default connection as needed...
*/
if (!http)
http = _cupsConnect();
/*
* Range check input...
*/
if (!http || !dest || !dinfo || !option)
{
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
return (NULL);
}
/*
* Find and return the attribute...
*/
snprintf(name, sizeof(name), "%s-supported", option);
return (ippFindAttribute(dinfo->attrs, name, IPP_TAG_ZERO));
}
/*
* 'cupsFreeDestInfo()' - Free destination information obtained using
* @link cupsCopyDestInfo@.
*
* @since CUPS 1.6/macOS 10.8@
*/
void
cupsFreeDestInfo(cups_dinfo_t *dinfo) /* I - Destination information */
{
/*
* Range check input...
*/
if (!dinfo)
return;
/*
* Free memory and return...
*/
_cupsStrFree(dinfo->resource);
cupsArrayDelete(dinfo->constraints);
cupsArrayDelete(dinfo->resolvers);
cupsArrayDelete(dinfo->localizations);
cupsArrayDelete(dinfo->media_db);
cupsArrayDelete(dinfo->cached_db);