OpenSC API Reference
sc_lock
3
opensc
sc_lock
Lock a card for exclusive use
Synopsis
#include <opensc.h>
int sc_lock(struct sc_card *card);
Description
This function locks the card against modification from other threads or processes. The function
may be called several times; a counter will be increased, and the card will be unlocked only
when this counter reaches zero.
Return value
Returns 0 on success, or a negative value in case of error.