//Returns 0 on succses.
//Returns size of file if non-empty
//If positive, populates mfi.
//Returns -1 if can't find file or reached end of file list.
int8_t MFSOpenFile( const char * fname, struct MFSFileInfo * mfi )
{
if( mfs_at == 0 )
{
FindMPFS();
}
if( mfs_at == 0 )
{
return -1;
}
EnterCritical();
flashchip->chip_size = 0x01000000;
uint32 ptr = mfs_at;
struct MFSFileEntry e;
while(1)
{
spi_flash_read( ptr, (uint32*)&e, sizeof( e ) );
ptr += sizeof(e);
if( e.name[0] == 0xff || ets_strlen( e.name ) == 0 ) break;
if( ets_strcmp( e.name, fname ) == 0 )
{
mfi->offset = e.start;
mfi->filelen = e.len;
flashchip->chip_size = 0x00080000;
ExitCritical();
return 0;
}
}
flashchip->chip_size = 0x00080000;
ExitCritical();
return -1;
}
//Returns 0 on succses.
//Returns size of file if non-empty
//If positive, populates mfi.
//Returns -1 if can't find file or reached end of file list.
int8_t MFSOpenFile( const char * fname, struct MFSFileInfo * mfi )
{
flashchip->chip_size = 0x01000000;
uint32 ptr = MFS_START;
struct MFSFileEntry e;
while(1)
{
spi_flash_read( ptr, (uint32*)&e, sizeof( e ) );
ptr += sizeof(e);
if( e.name[0] == 0xff || ets_strlen( e.name ) == 0 ) break;
if( ets_strcmp( e.name, fname ) == 0 )
{
mfi->offset = e.start;
mfi->filelen = e.len;
flashchip->chip_size = 0x00080000;
return 0;
}
}
flashchip->chip_size = 0x00080000;
return -1;
}
int strcmp(const char *s1, const char *s2) {
return ets_strcmp(s1, s2);
}
static void ICACHE_FLASH_ATTR got_mdns_packet(void *arg, char *pusrdata, unsigned short len)
{
int i, j, stlen;
char path[MAX_MDNS_PATH];
uint16_t * psr = (uint16_t*)pusrdata;
uint16_t xactionid = HTONS( psr[0] );
uint16_t flags = HTONS( psr[1] );
uint16_t questions = HTONS( psr[2] );
uint16_t answers = HTONS( psr[3] );
uint8_t * dataptr = (uint8_t*)pusrdata + 12;
uint8_t * dataend = dataptr + len;
if( flags & 0x8000 )
{
//Response
//Unused; MDNS does not fit the browse model we want to use.
}
else
{
//Query
for( i = 0; i < questions; i++ )
{
uint8_t * namestartptr = dataptr;
//Work our way through.
dataptr = ParseMDNSPath( dataptr, path, &stlen );
if( dataend - dataptr < 10 ) return;
if( !dataptr )
{
return;
}
int pathlen = ets_strlen( path );
if( pathlen < 6 )
{
continue;
}
if( strcmp( path + pathlen - 6, ".local" ) != 0 )
{
continue;
}
uint16_t record_type = ( dataptr[0] << 8 ) | dataptr[1];
uint16_t record_class = ( dataptr[2] << 8 ) | dataptr[3];
const char * path_first_dot = path;
const char * cpp = path;
while( *cpp && *cpp != '.' ) cpp++;
int dotlen = 0;
if( *cpp == '.' )
{
path_first_dot = cpp+1;
dotlen = path_first_dot - path - 1;
}
else
path_first_dot = 0;
int found = 0;
for( i = 0; i < MAX_MDNS_NAMES; i++ )
{
//Handle [hostname].local, or [hostname].[service].local
if( MDNSNames[i] && dotlen && ets_strncmp( MDNSNames[i], path, dotlen ) == 0 && dotlen == ets_strlen( MDNSNames[i] ))
{
found = 1;
if( record_type == 0x0001 ) //A Name Lookup.
SendOurARecord( namestartptr, xactionid, stlen );
else
SendSpecificService( i, namestartptr, xactionid, stlen, 1 );
}
}
if( !found ) //Not a specific entry lookup...
{
//Is this a browse?
if( ets_strcmp( path, "_services._dns-sd._udp.local" ) == 0 )
{
SendAvailableServices( namestartptr, xactionid, stlen );
}
else
{
//A specific service?
for( i = 0; i < MAX_MDNS_SERVICES; i++ )
{
const char * srv = MDNSServices[i];
if( !srv ) continue;
int sl = ets_strlen( srv );
if( strncmp( path, srv, sl ) == 0 )
{
SendSpecificService( i, namestartptr, xactionid, stlen, 0 );
}
}
}
}
}
}
}
