int
mifare_desfire_get_value_ex (MifareTag tag, uint8_t file_no, int32_t *value, int cs)
{
if (!value)
return errno = EINVAL, -1;
void *p;
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 2);
BUFFER_INIT (res, 9);
BUFFER_APPEND (cmd, 0x6C);
BUFFER_APPEND (cmd, file_no);
DESFIRE_TRANSCEIVE (tag, cmd, res);
p = (uint8_t *)res + 1;
if (cs) {
ssize_t rdl = BUFFER_SIZE (res) - 1;
p = mifare_cryto_postprocess_data (tag, p, &rdl, cs);
if (rdl != 4) {
printf ("invalid data length");
return -1;
}
}
*value = le32toh (*(int32_t *)(p));
return 0;
}
/*
* Retrieve version information form the PICC.
*/
int
mifare_desfire_get_version (MifareTag tag, struct mifare_desfire_version_info *version_info)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
ASSERT_NOT_NULL (version_info);
BUFFER_INIT (cmd, 1);
BUFFER_INIT (res, 15); /* 8, 8, then 15 byte results */
BUFFER_APPEND (cmd, 0x60);
DESFIRE_TRANSCEIVE (tag, cmd, res);
memcpy (&(version_info->hardware), res+1, 7);
cmd[0] = 0xAF;
DESFIRE_TRANSCEIVE (tag, cmd, res);
memcpy (&(version_info->software), res+1, 7);
DESFIRE_TRANSCEIVE (tag, cmd, res);
memcpy (&(version_info->uid), res+1, 14);
return 0;
}
int
mifare_desfire_change_key_settings (MifareTag tag, uint8_t settings)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
ASSERT_AUTHENTICATED (tag);
BUFFER_INIT (cmd, 9);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0x54);
uint8_t data[8];
data[0] = settings;
iso14443a_crc (data, 1, data + 1);
bzero (data+3, 5);
mifare_cbc_des (MIFARE_DESFIRE (tag)->session_key, data, 8, MD_SEND, 0);
BUFFER_APPEND_BYTES (cmd, data, 8);
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
yaml_emitter_initialize(yaml_emitter_t *emitter)
{
assert(emitter); /* Non-NULL emitter object expected. */
memset(emitter, 0, sizeof(yaml_emitter_t));
if (!BUFFER_INIT(emitter, emitter->buffer, OUTPUT_BUFFER_SIZE))
goto error;
if (!BUFFER_INIT(emitter, emitter->raw_buffer, OUTPUT_RAW_BUFFER_SIZE))
goto error;
if (!STACK_INIT(emitter, emitter->states, INITIAL_STACK_SIZE))
goto error;
if (!QUEUE_INIT(emitter, emitter->events, INITIAL_QUEUE_SIZE))
goto error;
if (!STACK_INIT(emitter, emitter->indents, INITIAL_STACK_SIZE))
goto error;
if (!STACK_INIT(emitter, emitter->tag_directives, INITIAL_STACK_SIZE))
goto error;
return 1;
error:
BUFFER_DEL(emitter, emitter->buffer);
BUFFER_DEL(emitter, emitter->raw_buffer);
STACK_DEL(emitter, emitter->states);
QUEUE_DEL(emitter, emitter->events);
STACK_DEL(emitter, emitter->indents);
STACK_DEL(emitter, emitter->tag_directives);
return 0;
}
static ssize_t
read_data (MifareTag tag, uint8_t command, uint8_t file_no, off_t offset, size_t length, void *data, int cs)
{
ssize_t bytes_read = 0;
void *p = data;
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 8);
BUFFER_INIT (res, MAX_FRAME_SIZE);
BUFFER_APPEND (cmd, command);
BUFFER_APPEND (cmd, file_no);
BUFFER_APPEND_LE (cmd, offset, 3, sizeof (off_t));
BUFFER_APPEND_LE (cmd, length, 3, sizeof (size_t));
if (cs) {
if (!(p = assert_crypto_buffer_size (tag, MAX_FRAME_SIZE - 1)))
return -1;
}
do {
ssize_t frame_bytes;
DESFIRE_TRANSCEIVE (tag, cmd, res);
frame_bytes = BUFFER_SIZE (res) - 1;
memcpy ((uint8_t *)p + bytes_read, res + 1, frame_bytes);
bytes_read += frame_bytes;
if (res[0] == 0xAF) {
if (p != data) {
// If we are handling memory, request more for next frame.
if (!(p = assert_crypto_buffer_size (tag, bytes_read + MAX_FRAME_SIZE - 1)))
return -1;
}
BUFFER_CLEAR (cmd);
BUFFER_APPEND (cmd, 0xAF);
}
} while (res[0] != 0x00);
if (cs) {
if (mifare_cryto_postprocess_data (tag, p, &bytes_read, cs))
memcpy (data, p, bytes_read);
}
return bytes_read;
}
int
mifare_desfire_change_key (MifareTag tag, uint8_t key_no, MifareDESFireKey new_key, MifareDESFireKey old_key)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
ASSERT_AUTHENTICATED (tag);
BUFFER_INIT (cmd, 1+1+24);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0xC4);
BUFFER_APPEND (cmd, key_no);
uint8_t data[24];
if ((MIFARE_DESFIRE (tag)->authenticated_key_no != key_no) /* FIXME && (ChangeKey key != 0x0E)*/) {
if (old_key) {
memcpy (data, old_key->data, 16);
} else {
bzero (data, 16);
}
for (int n=0; n<16; n++) {
data[n] ^= new_key->data[n];
}
// Append XORed data CRC
iso14443a_crc (data, 16, data+16);
// Append new key CRC
iso14443a_crc (new_key->data, 16, data+18);
// Padding
for (int n=20; n<24; n++) {
data[n] = 0x00;
}
} else {
memcpy (data, new_key->data, 16);
// Append new key CRC
iso14443a_crc (data, 16, data+16);
// Padding
for (int n=18; n<24; n++) {
data[n] = 0x00;
}
}
mifare_cbc_des (MIFARE_DESFIRE (tag)->session_key, data, 24, MD_SEND, 0);
BUFFER_APPEND_BYTES (cmd, data, 24);
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
static ssize_t
write_data (MifareTag tag, uint8_t command, uint8_t file_no, off_t offset, size_t length, void *data, int cs)
{
size_t bytes_left;
size_t bytes_send = 0;
void *p = data;
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, MAX_FRAME_SIZE);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, command);
BUFFER_APPEND (cmd, file_no);
BUFFER_APPEND_LE (cmd, offset, 3, sizeof (off_t));
BUFFER_APPEND_LE (cmd, length, 3, sizeof (size_t));
p = mifare_cryto_preprocess_data (tag, data, &length, cs);
bytes_left = 52;
while (bytes_send < length) {
size_t frame_bytes = MIN(bytes_left, length - bytes_send);
BUFFER_APPEND_BYTES (cmd, (uint8_t *)p + bytes_send, frame_bytes);
DESFIRE_TRANSCEIVE (tag, cmd, res);
bytes_send += frame_bytes;
if (0x00 == res[0])
break;
// PICC returned 0xAF and expects more data
BUFFER_CLEAR (cmd);
BUFFER_APPEND (cmd, 0xAF);
bytes_left = 0x59;
}
if (0x00 != res[0]) {
// 0xAF (additionnal Frame) failure can happen here (wrong crypto method).
MIFARE_DESFIRE (tag)->last_picc_error = res[0];
bytes_send = -1;
}
return bytes_send;
}
int
mifare_desfire_abort_transaction (MifareTag tag)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 1);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0xA7);
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
int
mifare_desfire_delete_application (MifareTag tag, MifareDESFireAID aid)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 4);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0xDA);
BUFFER_APPEND_LE (cmd, aid->data, sizeof (aid->data), sizeof (aid->data));
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
int s6net_ident_reply_get (char *s, ip46_t const *remoteip, uint16 remoteport, ip46_t const *localip, uint16 localport, tain_t const *deadline, tain_t *stamp)
{
unsigned int len ;
int fd ;
if (ip46_is6(remoteip) != ip46_is6(localip)) return (errno = EAFNOSUPPORT, -1) ;
fd = socket_tcp46(ip46_is6(remoteip)) ;
if (fd < 0) return -1 ;
if (socket_bind46(fd, localip, 0) < 0) goto err ;
if (!socket_deadlineconnstamp46(fd, remoteip, 113, deadline, stamp)) goto err ;
{
char buf[S6NET_IDENT_REPLY_SIZE + 1] ;
char fmt[UINT16_FMT] ;
buffer b = BUFFER_INIT(&buffer_write, fd, buf, 256) ;
unsigned int n = uint16_fmt(fmt, remoteport) ;
buffer_putnoflush(&b, fmt, n) ;
buffer_putnoflush(&b, " , ", 3) ;
n = uint16_fmt(fmt, localport) ;
buffer_putnoflush(&b, fmt, n) ;
buffer_putnoflush(&b, "\r\n", 2) ;
if (!buffer_timed_flush(&b, deadline, stamp)) goto err ;
buffer_init(&b, &buffer_read, fd, buf, S6NET_IDENT_REPLY_SIZE + 1) ;
if (sanitize_read(timed_getlnmax(&b, s, S6NET_IDENT_REPLY_SIZE, &len, '\n', deadline, stamp)) <= 0) goto err ;
}
fd_close(fd) ;
if (!len--) return (errno = EPROTO, -1) ;
s[len] = 0 ;
return (int)len ;
err:
fd_close(fd) ;
return -1 ;
}
int
mifare_desfire_delete_file (MifareTag tag, uint8_t file_no)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 2);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0xDF);
BUFFER_APPEND (cmd, file_no);
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
int
mifare_desfire_format_picc (MifareTag tag)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
ASSERT_AUTHENTICATED (tag);
BUFFER_INIT (cmd, 1);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0xFC);
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
int
mifare_desfire_change_file_settings (MifareTag tag, uint8_t file_no, uint8_t communication_settings, uint16_t access_rights)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
// TODO: Use a current application files settings cache.
struct mifare_desfire_file_settings settings;
int res = mifare_desfire_get_file_settings (tag, file_no, &settings);
if (res < 0)
return res;
if (MDAR_CHANGE_AR(settings.access_rights) == MDAR_FREE) {
BUFFER_INIT (cmd, 5);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0x5F);
BUFFER_APPEND (cmd, file_no);
BUFFER_APPEND (cmd, communication_settings);
BUFFER_APPEND_LE (cmd, access_rights, 2, sizeof (uint16_t));
DESFIRE_TRANSCEIVE (tag, cmd, res);
} else {
BUFFER_INIT (cmd, 10);
BUFFER_INIT (res, 1);
uint8_t data[8];
BUFFER_APPEND (cmd, 0x5F);
BUFFER_APPEND (cmd, file_no);
data[0] = communication_settings;
uint16_t le_ar = htole16 (access_rights);
memcpy (data + 1, &le_ar, sizeof (le_ar));
iso14443a_crc (data, 3, data+3);
bzero (data + 5, 3);
mifare_cbc_des (MIFARE_DESFIRE (tag)->session_key, data, 8, MD_SEND, 0);
BUFFER_APPEND_BYTES (cmd, data, 8);
DESFIRE_TRANSCEIVE (tag, cmd, res);
}
return 0;
}
int
mifare_desfire_create_application (MifareTag tag, MifareDESFireAID aid, uint8_t settings, uint8_t key_no)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 6);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0xCA);
BUFFER_APPEND_LE (cmd, aid->data, sizeof (aid->data), sizeof (aid->data));
BUFFER_APPEND (cmd, settings);
BUFFER_APPEND (cmd, key_no);
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
static int
create_file1 (MifareTag tag, uint8_t command, uint8_t file_no, uint8_t communication_settings, uint16_t access_rights, uint32_t file_size)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 8);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, command);
BUFFER_APPEND (cmd, file_no);
BUFFER_APPEND (cmd, communication_settings);
BUFFER_APPEND_LE (cmd, access_rights, 2, sizeof (uint16_t));
BUFFER_APPEND_LE (cmd, file_size, 3, sizeof (uint32_t));
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
int
mifare_desfire_get_file_settings (MifareTag tag, uint8_t file_no, struct mifare_desfire_file_settings *settings)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 2);
BUFFER_INIT (res, 18);
BUFFER_APPEND (cmd, 0xF5);
BUFFER_APPEND (cmd, file_no);
DESFIRE_TRANSCEIVE (tag, cmd, res);
struct mifare_desfire_raw_file_settings raw_settings;
memcpy (&raw_settings, res+1, BUFFER_SIZE (res)-1);
settings->file_type = raw_settings.file_type;
settings->communication_settings = raw_settings.communication_settings;
settings->access_rights = le16toh (raw_settings.access_rights);
switch (settings->file_type) {
case MDFT_STANDARD_DATA_FILE:
case MDFT_BACKUP_DATA_FILE:
settings->settings.standard_file.file_size = le24toh (raw_settings.settings.standard_file.file_size);
break;
case MDFT_VALUE_FILE_WITH_BACKUP:
settings->settings.value_file.lower_limit = le32toh (raw_settings.settings.value_file.lower_limit);
settings->settings.value_file.upper_limit = le32toh (raw_settings.settings.value_file.upper_limit);
settings->settings.value_file.limited_credit_value = le32toh (raw_settings.settings.value_file.limited_credit_value);
settings->settings.value_file.limited_credit_enabled = raw_settings.settings.value_file.limited_credit_enabled;
break;
case MDFT_LINEAR_RECORD_FILE_WITH_BACKUP:
case MDFT_CYCLIC_RECORD_FILE_WITH_BACKUP:
settings->settings.linear_record_file.record_size = le24toh (raw_settings.settings.linear_record_file.record_size);
settings->settings.linear_record_file.max_number_of_records = le24toh (raw_settings.settings.linear_record_file.max_number_of_records);
settings->settings.linear_record_file.current_number_of_records = le24toh (raw_settings.settings.linear_record_file.current_number_of_records);
break;
}
return 0;
}
/*
* Retrieve version information for a given key.
*/
int
mifare_desfire_get_key_version (MifareTag tag, uint8_t key_no, uint8_t *version)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
ASSERT_NOT_NULL (version);
BUFFER_INIT (cmd, 2);
BUFFER_APPEND (cmd, 0x64);
BUFFER_APPEND (cmd, key_no);
BUFFER_INIT (res, 2);
DESFIRE_TRANSCEIVE (tag, cmd, res);
*version = res[1];
return 0;
}
int
mifare_desfire_get_key_settings (MifareTag tag, uint8_t *settings, uint8_t *max_keys)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 1);
BUFFER_INIT (res, 3);
BUFFER_APPEND (cmd, 0x45);
DESFIRE_TRANSCEIVE (tag, cmd, res);
if (settings)
*settings = res[1];
if (max_keys)
*max_keys = res[2];
return 0;
}
/*
* Read data to the provided MIFARE tag.
*/
int
mifare_ultralight_write (MifareTag tag, const MifareUltralightPageNumber page, const MifareUltralightPage data)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_ULTRALIGHT (tag);
ASSERT_VALID_PAGE (tag, page, true);
BUFFER_INIT (cmd, 6);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0xA2);
BUFFER_APPEND (cmd, page);
BUFFER_APPEND_BYTES (cmd, data, sizeof (MifareUltralightPage));
ULTRALIGHT_TRANSCEIVE (tag, cmd, res);
/* Invalidate page in cache */
MIFARE_ULTRALIGHT(tag)->cached_pages[page] = 0;
return 0;
}
int
mifare_desfire_limited_credit_ex (MifareTag tag, uint8_t file_no, int32_t amount, int cs)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 10);
BUFFER_INIT (res, 1);
BUFFER_INIT (data, 4);
BUFFER_APPEND_LE (data, amount, 4, sizeof (int32_t));
BUFFER_APPEND (cmd, 0x1C);
BUFFER_APPEND (cmd, file_no);
size_t n = 4;
void *d = mifare_cryto_preprocess_data (tag, data, &n, cs);
BUFFER_APPEND_BYTES (cmd, d, n);
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
/*
* Select the application specified by aid for further operation. If aid is
* NULL, the master application is selected (equivalent to aid = 0x00000).
*/
int
mifare_desfire_select_application (MifareTag tag, MifareDESFireAID aid)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
struct mifare_desfire_aid null_aid = { .data = { 0x00, 0x00, 0x00 } };
if (!aid) {
aid = &null_aid;
}
BUFFER_INIT (cmd, 4);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0x5A);
BUFFER_APPEND_LE (cmd, aid->data, sizeof (aid->data), sizeof (aid->data));
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
int
mifare_desfire_create_value_file (MifareTag tag, uint8_t file_no, uint8_t communication_settings, uint16_t access_rights, int32_t lower_limit, int32_t upper_limit, int32_t value, uint8_t limited_credit_enable)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 18);
BUFFER_INIT (res, 1);
BUFFER_APPEND (cmd, 0xCC);
BUFFER_APPEND (cmd, file_no);
BUFFER_APPEND (cmd, communication_settings);
BUFFER_APPEND_LE (cmd, access_rights, 2, sizeof (uint16_t));
BUFFER_APPEND_LE (cmd, lower_limit, 4, sizeof (int32_t));
BUFFER_APPEND_LE (cmd, upper_limit, 4, sizeof (int32_t));
BUFFER_APPEND_LE (cmd, value, 4, sizeof (int32_t));
BUFFER_APPEND (cmd, limited_credit_enable);
DESFIRE_TRANSCEIVE (tag, cmd, res);
return 0;
}
int
mifare_desfire_get_file_ids (MifareTag tag, uint8_t *files[], size_t *count)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 1);
BUFFER_INIT (res, 16);
BUFFER_APPEND (cmd, 0x6F);
DESFIRE_TRANSCEIVE (tag, cmd, res);
*count = BUFFER_SIZE (res) - 1;
if (!(*files = malloc (*count))) {
errno = ENOMEM;
return -1;
}
memcpy (*files, res+1, *count);
return 0;
}
int
mifare_desfire_get_application_ids (MifareTag tag, MifareDESFireAID *aids[], size_t *count)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_DESFIRE (tag);
BUFFER_INIT (cmd, 1);
BUFFER_INIT (res, MAX_FRAME_SIZE);
BUFFER_APPEND (cmd, 0x6A);
DESFIRE_TRANSCEIVE (tag, cmd, res);
*count = (BUFFER_SIZE (res)-1)/3;
*aids = malloc ((*count + 1) * sizeof (MifareDESFireAID));
for (size_t i = 0; (3*i + 1) < BUFFER_SIZE (res); i++) {
(*aids)[i] = memdup (res + 3*i + 1, 3);
}
if (res[0] == 0xAF) {
cmd[0] = 0xAF;
DESFIRE_TRANSCEIVE (tag, cmd, res);
*count += (BUFFER_SIZE (res)-1) / 3;
MifareDESFireAID *p;
if ((p = realloc (*aids, (*count + 1) * sizeof (MifareDESFireAID)))) {
*aids = p;
for (size_t i = 0; (3*i + 1) < BUFFER_SIZE (res); i++) {
(*aids)[19+i] = memdup (res + 3*i + 1, 3);
}
}
}
(*aids)[*count] = NULL;
return 0;
}
yaml_parser_initialize(yaml_parser_t *parser)
{
assert(parser); /* Non-NULL parser object expected. */
memset(parser, 0, sizeof(yaml_parser_t));
if (!BUFFER_INIT(parser, parser->raw_buffer, INPUT_RAW_BUFFER_SIZE))
goto error;
if (!BUFFER_INIT(parser, parser->buffer, INPUT_BUFFER_SIZE))
goto error;
if (!QUEUE_INIT(parser, parser->tokens, INITIAL_QUEUE_SIZE))
goto error;
if (!STACK_INIT(parser, parser->indents, INITIAL_STACK_SIZE))
goto error;
if (!STACK_INIT(parser, parser->simple_keys, INITIAL_STACK_SIZE))
goto error;
if (!STACK_INIT(parser, parser->states, INITIAL_STACK_SIZE))
goto error;
if (!STACK_INIT(parser, parser->marks, INITIAL_STACK_SIZE))
goto error;
if (!STACK_INIT(parser, parser->tag_directives, INITIAL_STACK_SIZE))
goto error;
return 1;
error:
BUFFER_DEL(parser, parser->raw_buffer);
BUFFER_DEL(parser, parser->buffer);
QUEUE_DEL(parser, parser->tokens);
STACK_DEL(parser, parser->indents);
STACK_DEL(parser, parser->simple_keys);
STACK_DEL(parser, parser->states);
STACK_DEL(parser, parser->marks);
STACK_DEL(parser, parser->tag_directives);
return 0;
}
int timed_ancil_fd_sandwiched_recv (int fdsock, char const *before, unsigned int beforelen, char const *after, unsigned int afterlen, struct taia const *deadline, struct taia *stamp)
{
unsigned int maxlen = beforelen > afterlen ? beforelen : afterlen ;
char buf[maxlen] ;
buffer b = BUFFER_INIT(&fd_read, fdsock, buf, maxlen) ;
int p ;
{
char gotbefore[beforelen] ;
if (timed_buffer_get(&b, gotbefore, beforelen, deadline, stamp) < beforelen) return -1 ;
if (byte_diff(gotbefore, beforelen, before)) return (errno = EPROTO, -1) ;
}
if (!timed_ancil_fd_recv(fdsock, &p, deadline, stamp)) return -1 ;
if (ndelay_on(p) < 0)
{
register int e = errno ;
fd_close(p) ;
errno = e ;
return -1 ;
}
{
char gotafter[afterlen] ;
if (timed_buffer_get(&b, gotafter, afterlen, deadline, stamp) < afterlen)
{
register int e = errno ;
fd_close(p) ;
errno = e ;
return -1 ;
}
if (byte_diff(gotafter, afterlen, after))
{
fd_close(p) ;
return (errno = EPROTO, -1) ;
}
}
return p ;
}
/*
* Read data from the provided MIFARE tag.
*/
int
mifare_ultralight_read (MifareTag tag, MifareUltralightPageNumber page, MifareUltralightPage *data)
{
ASSERT_ACTIVE (tag);
ASSERT_MIFARE_ULTRALIGHT (tag);
ASSERT_VALID_PAGE (tag, page, false);
if (!MIFARE_ULTRALIGHT(tag)->cached_pages[page]) {
BUFFER_INIT (cmd, 2);
BUFFER_ALIAS (res, MIFARE_ULTRALIGHT(tag)->cache[page], sizeof(MifareUltralightPage) * 4);
BUFFER_APPEND (cmd, 0x30);
BUFFER_APPEND (cmd, page);
ULTRALIGHT_TRANSCEIVE (tag, cmd, res);
/* Handle wrapped pages */
int iPageCount;
if (IS_MIFARE_ULTRALIGHT_C(tag)) {
iPageCount = MIFARE_ULTRALIGHT_C_PAGE_COUNT_READ;
} else {
iPageCount = MIFARE_ULTRALIGHT_PAGE_COUNT;
}
for (int i = iPageCount; i <= page + 3; i++) {
memcpy (MIFARE_ULTRALIGHT(tag)->cache[i % iPageCount], MIFARE_ULTRALIGHT(tag)->cache[i], sizeof (MifareUltralightPage));
}
/* Mark pages as cached */
for (int i = page; i <= page + 3; i++) {
MIFARE_ULTRALIGHT(tag)->cached_pages[i % iPageCount] = 1;
}
}
memcpy (data, MIFARE_ULTRALIGHT(tag)->cache[page], sizeof (*data));
return 0;
}
sig_unblock(sig_term);
sig_unblock(sig_alarm);
len = read(fd,buf,len);
sig_block(sig_term);
sig_block(sig_alarm);
if (len <= 0) return len;
flagnewline = (buf[len - 1] == '\n');
return len;
}
char inbuf[1024];
buffer ssin = BUFFER_INIT(flushread,0,inbuf,sizeof inbuf);
char line[1001];
int linelen; /* 0 <= linelen <= 1000 */
void doit(char **script)
{
int flageof;
char ch;
int j;
int i;
char *action;
int flagselected;
int flagtimestamp;
flagtimestamp = 0;
#include <unistd.h> #include "buffer.h" char buffer_1small_space[256]; static buffer it = BUFFER_INIT(write,1,buffer_1small_space,sizeof buffer_1small_space); buffer *buffer_1small = ⁢
#include "buffer.h"
#include "strerr.h"
#include "str.h"
#include "byte.h"
#include "readwrite.h"
#include "exit.h"
#include "fmt.h"
#include "iopause.h"
#include "pathexec.h"
#define FATAL "recordio: fatal: "
char pid[FMT_ULONG];
char recordbuf[512];
buffer ssrecord = BUFFER_INIT(write,2,recordbuf,sizeof recordbuf);
void record(char *buf,int len,char *direction) /* 1 <= len <= 256 */
{
int i;
while (len) {
buffer_puts(&ssrecord,pid);
buffer_puts(&ssrecord,direction);
i = byte_chr(buf,len,'\n');
buffer_put(&ssrecord,buf,i);
if (i == len) {
buffer_puts(&ssrecord,"+\n");
buffer_flush(&ssrecord);