FREEFARE(3) Library Functions Manual FREEFARE(3) NAME freefare_get_tags, freefare_get_tag_type, freefare_get_tag_friendly_name, freefare_get_tag_uid, freefare_free_tag, freefare_free_tags -- Generic tar- get manipulation functions LIBRARY Mifare card manipulation library (libfreefare, -lfreefare) SYNOPSIS #include <freefare.h> MifareTag * freefare_get_tags(nfc_device_t *device); enum mifare_tag_type { ULTRALIGHT, CLASSIC_1K, CLASSIC_4K }; enum mifare_tag_type freefare_get_tag_type(MifareTag tag); const char * freefare_get_tag_friendly_name(MifareTag tag); char * freefare_get_tag_uid(MifareTag tag); void freefare_free_tag(MifareTag tags); void freefare_free_tags(MifareTag *tags); DESCRIPTION The freefare_*() family of functions allow agnostic access to the MifareTag present on a given NFC device. freefare_get_tags() returns a NULL-terminated list of MifareTag present on device. This list has to be freed after usage by either: - calling the freefare_free_tags() function. All tags in the list are automatically freed; - calling the freefare_free_tag() function to free each tag in the list individually, and freeing the list itself using the free() function. Because of the nature of the target detection process, any previously de- tected target will be in an inconsistent state after a call to free- fare_get_tags(). It is the programmer's responsibility to free these tar- gets before calling the freefare_get_tags() function. Information about a given MifareTag can be gathered using the free- fare_get_tag_type(), freefare_get_tag_uid() and free- fare_get_tag_friendly_name() functions. RETURN VALUES Unless stated otherwise, all functions return a value greater than or equal to 0 on success or -1 on failure. SEE ALSO free(3), mifare_classic(3), mifare_ultralight(3) AUTHORS Romain Tartiere <romain@blogreen.org> Romuald Conty <romuald@libnfc.org> FreeBSD ports 15.quarterly March 30, 2010 FREEFARE(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | AUTHORS
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