/*-------------------------------------------------------------------------*/
SLPDAEntry* KnownDAFromCache(int scopelistlen,
const char* scopelist)
/* Ask Slpd if it knows about a DA */
/* */
/* Returns: pointer to a new DA entry. Caller must NOT free() */
/*-------------------------------------------------------------------------*/
{
time_t curtime;
SLPDAEntry* entry;
entry = KnownDAListFindByScope(&G_KnownDACache,scopelistlen,scopelist);
if(entry == 0)
{
curtime = time(&curtime);
if(G_KnownDALastCacheRefresh == 0 ||
curtime - G_KnownDALastCacheRefresh > MINIMUM_DISCOVERY_INTERVAL)
{
G_KnownDALastCacheRefresh = curtime;
/* discover DAs */
if(KnownDADiscoverFromIPC() == 0)
if(KnownDADiscoverFromProperties() == 0)
if(KnownDADiscoverFromDHCP() == 0)
KnownDADiscoverFromMulticast(scopelistlen,
scopelist);
}
entry = KnownDAListFindByScope(&G_KnownDACache,scopelistlen,scopelist);
}
return entry;
}
/*-------------------------------------------------------------------------*/
SLPBoolean KnownDAFromCache(int scopelistlen,
const char* scopelist,
int spistrlen,
const char* spistr,
struct in_addr* daaddr)
/* Ask Slpd if it knows about a DA */
/* */
/* Returns: non-zero on success, zero if DA can not be found */
/*-------------------------------------------------------------------------*/
{
time_t curtime;
if(KnownDAListFind(scopelistlen,
scopelist,
spistrlen,
spistr,
daaddr) == SLP_FALSE)
{
curtime = time(&curtime);
if(G_KnownDALastCacheRefresh == 0 ||
curtime - G_KnownDALastCacheRefresh > MINIMUM_DISCOVERY_INTERVAL)
{
G_KnownDALastCacheRefresh = curtime;
/* discover DAs */
if(KnownDADiscoverFromIPC() == 0)
if(KnownDADiscoverFromProperties() == 0)
if(KnownDADiscoverFromDHCP() == 0)
KnownDADiscoverFromMulticast(scopelistlen,
scopelist);
}
return KnownDAListFind(scopelistlen,
scopelist,
spistrlen,
spistr,
daaddr);
}
return SLP_TRUE;
}
/*=========================================================================*/
int KnownDAGetScopes(int* scopelistlen,
char** scopelist)
/* Gets a list of scopes from the known DA list */
/* */
/* scopelistlen (OUT) stringlen of the scopelist */
/* */
/* scopelist (OUT) NULL terminated list of scopes */
/* */
/* returns: zero on success, non-zero on failure */
/*=========================================================================*/
{
time_t curtime;
SLPDAEntry* entry;
int newlen;
/* Refresh the cache if necessary */
curtime = time(&curtime);
if(G_KnownDALastCacheRefresh == 0 ||
curtime - G_KnownDALastCacheRefresh > MINIMUM_DISCOVERY_INTERVAL)
{
G_KnownDALastCacheRefresh = curtime;
/* discover DAs */
if(KnownDADiscoverFromIPC() == 0)
{
KnownDADiscoverFromDHCP();
KnownDADiscoverFromProperties();
KnownDADiscoverFromMulticast(0,"");
}
/* TODO: */
/* enumerate through all the knownda entries and generate a */
/* scopelist */
entry = (SLPDAEntry*)G_KnownDACache.head;
while(entry)
{
newlen = G_KnownDAScopesLen;
while(SLPUnionStringList(G_KnownDAScopesLen,
G_KnownDAScopes,
entry->scopelistlen,
entry->scopelist,
&newlen,
G_KnownDAScopes) < 0)
{
G_KnownDAScopes = realloc(G_KnownDAScopes,newlen);
if(G_KnownDAScopes == 0)
{
G_KnownDAScopesLen = 0;
break;
}
}
G_KnownDAScopesLen = newlen;
entry = (SLPDAEntry*) entry->listitem.next;
}
/* Explicitly add in the useScopes property */
newlen = G_KnownDAScopesLen;
while(SLPUnionStringList(G_KnownDAScopesLen,
G_KnownDAScopes,
strlen(SLPPropertyGet("net.slp.useScopes")),
SLPPropertyGet("net.slp.useScopes"),
&newlen,
G_KnownDAScopes) < 0)
{
G_KnownDAScopes = realloc(G_KnownDAScopes,newlen);
if(G_KnownDAScopes == 0)
{
G_KnownDAScopesLen = 0;
break;
}
}
G_KnownDAScopesLen = newlen;
}
if(G_KnownDAScopesLen)
{
*scopelist = malloc(G_KnownDAScopesLen + 1);
if(*scopelist == 0)
{
return -1;
}
memcpy(*scopelist,G_KnownDAScopes, G_KnownDAScopesLen);
(*scopelist)[G_KnownDAScopesLen] = 0;
*scopelistlen = G_KnownDAScopesLen;
}
else
{
*scopelist = strdup("");
if(*scopelist == 0)
{
return -1;
}
*scopelistlen = 0;
}
return 0;
}
/*=========================================================================*/
int KnownDAGetScopes(int* scopelistlen,
char** scopelist)
/* Gets a list of scopes from the known DA list */
/* */
/* scopelistlen (OUT) stringlen of the scopelist */
/* */
/* scopelist (OUT) NULL terminated list of scopes */
/* */
/* returns: zero on success, non-zero on failure */
/*=========================================================================*/
{
int newlen;
time_t curtime;
SLPDatabaseHandle dh;
SLPDatabaseEntry* entry;
/* Refresh the cache if necessary */
curtime = time(&curtime);
if(G_KnownDALastCacheRefresh == 0 ||
curtime - G_KnownDALastCacheRefresh > MINIMUM_DISCOVERY_INTERVAL)
{
G_KnownDALastCacheRefresh = curtime;
/* discover DAs */
if(KnownDADiscoverFromIPC() == 0)
{
KnownDADiscoverFromDHCP();
KnownDADiscoverFromProperties();
KnownDADiscoverFromMulticast(0,"");
}
}
/* enumerate through all the knownda entries and generate a */
/* scopelist */
dh = SLPDatabaseOpen(&G_KnownDACache);
if(dh)
{
/*-----------------------------------*/
/* Check to find the requested entry */
/*-----------------------------------*/
while(1)
{
entry = SLPDatabaseEnum(dh);
if(entry == NULL) break;
newlen = G_KnownDAScopesLen;
while(SLPUnionStringList(G_KnownDAScopesLen,
G_KnownDAScopes,
entry->msg->body.daadvert.scopelistlen,
entry->msg->body.daadvert.scopelist,
&newlen,
G_KnownDAScopes) < 0)
{
G_KnownDAScopes = xrealloc(G_KnownDAScopes,newlen);
if(G_KnownDAScopes == 0)
{
G_KnownDAScopesLen = 0;
break;
}
}
G_KnownDAScopesLen = newlen;
}
SLPDatabaseClose(dh);
}
/* Explicitly add in the useScopes property */
newlen = G_KnownDAScopesLen;
while(SLPUnionStringList(G_KnownDAScopesLen,
G_KnownDAScopes,
strlen(SLPPropertyGet("net.slp.useScopes")),
SLPPropertyGet("net.slp.useScopes"),
&newlen,
G_KnownDAScopes) < 0)
{
G_KnownDAScopes = xrealloc(G_KnownDAScopes,newlen);
if(G_KnownDAScopes == 0)
{
G_KnownDAScopesLen = 0;
break;
}
}
G_KnownDAScopesLen = newlen;
if(G_KnownDAScopesLen)
{
*scopelist = xmalloc(G_KnownDAScopesLen + 1);
if(*scopelist == 0)
{
return -1;
}
memcpy(*scopelist,G_KnownDAScopes, G_KnownDAScopesLen);
(*scopelist)[G_KnownDAScopesLen] = 0;
*scopelistlen = G_KnownDAScopesLen;
}
else
{
*scopelist = xstrdup("");
if(*scopelist == 0)
{
return -1;
}
*scopelistlen = 0;
}
return 0;
}
