FreeCalypso > hg > freecalypso-hwlab
diff simtool/cardconnect.c @ 85:b57cf64ece29
fc-simtool project started
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 24 Jan 2021 00:32:10 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/simtool/cardconnect.c Sun Jan 24 00:32:10 2021 +0000 @@ -0,0 +1,83 @@ +#include <sys/types.h> +#include <string.h> +#include <strings.h> +#include <stdio.h> +#include <stdlib.h> +#include <pcsclite.h> +#include <winscard.h> +#include "globals.h" + +setup_pcsc_context() +{ + LONG rv; + + rv = SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, &hContext); + if (rv != SCARD_S_SUCCESS) { + fprintf(stderr, "SCardEstablishContext: %s\n", + pcsc_stringify_error(rv)); + exit(1); + } + return(0); +} + +get_reader_name() +{ + LONG rv; + DWORD dwReaders; + + rv = SCardListReaders(hContext, NULL, NULL, &dwReaders); + if (rv != SCARD_S_SUCCESS) { + fprintf(stderr, "SCardListReaders 1st call: %s\n", + pcsc_stringify_error(rv)); + SCardReleaseContext(hContext); + exit(1); + } + if (dwReaders < 1) { + fprintf(stderr, + "error: dwReaders returned by SCardListReaders() is less than 1\n"); + SCardReleaseContext(hContext); + exit(1); + } + reader_name_buf = malloc(dwReaders); + if (!reader_name_buf) { + perror("malloc for readers list"); + SCardReleaseContext(hContext); + exit(1); + } + reader_name_buf[0] = '\0'; + rv = SCardListReaders(hContext, NULL, reader_name_buf, &dwReaders); + if (rv != SCARD_S_SUCCESS) { + fprintf(stderr, "SCardListReaders 2nd call: %s\n", + pcsc_stringify_error(rv)); + SCardReleaseContext(hContext); + exit(1); + } + if (reader_name_buf[0] == '\0') { + fprintf(stderr, + "error: list returned by SCardListReaders() begins with a NUL byte\n"); + SCardReleaseContext(hContext); + exit(1); + } + if (!memchr(reader_name_buf, 0, dwReaders)) { + fprintf(stderr, +"error: list returned by SCardListReaders() does not contain a NUL byte\n"); + SCardReleaseContext(hContext); + exit(1); + } + return(0); +} + +connect_to_card() +{ + LONG rv; + DWORD dwActiveProtocol; + + rv = SCardConnect(hContext, reader_name_buf, SCARD_SHARE_EXCLUSIVE, + SCARD_PROTOCOL_T0, &hCard, &dwActiveProtocol); + if (rv != SCARD_S_SUCCESS) { + fprintf(stderr, "SCardConnect: %s\n", pcsc_stringify_error(rv)); + SCardReleaseContext(hContext); + exit(1); + } + return(0); +}