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pcsc, add hexdump for debugging

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This commit is contained in:
Jay Sorg 2014-05-29 20:59:08 -07:00
parent d5ea23ed48
commit d1ca03c9fb
1 changed files with 49 additions and 0 deletions
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49
sesman/chansrv/pcsc/xrdp_pcsc.c
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@ -64,6 +64,8 @@ PCSC_API SCARD_IO_REQUEST g_rgSCardRawPci = { SCARD_PROTOCOL_RAW, 8 };
#define LLOG_LEVEL 5
#define LLOGLN(_level, _args) \
do { if (_level < LLOG_LEVEL) { printf _args ; printf("\n"); } } while (0)
#define LHEXDUMP(_level, _args) \
do { if (_level < LLOG_LEVEL) { lhexdump _args ; } } while (0)
#define SCARD_ESTABLISH_CONTEXT 0x01
#define SCARD_RELEASE_CONTEXT 0x02
@ -107,6 +109,50 @@ static pthread_mutex_t g_mutex = PTHREAD_MUTEX_INITIALIZER;
/* for pcsc_stringify_error */
static char g_error_str[512];
/*****************************************************************************/
/* produce a hex dump */
static void
lhexdump(void *p, int len)
{
unsigned char *line;
int i;
int thisline;
int offset;
line = (unsigned char *)p;
offset = 0;
while (offset < len)
{
printf("%04x ", offset);
thisline = len - offset;
if (thisline > 16)
{
thisline = 16;
}
for (i = 0; i < thisline; i++)
{
printf("%02x ", line[i]);
}
for (; i < 16; i++)
{
printf(" ");
}
for (i = 0; i < thisline; i++)
{
printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
}
printf("\n");
offset += thisline;
line += thisline;
}
}
/*****************************************************************************/
static int
get_display_num_from_display(const char *display_text)
@ -261,6 +307,8 @@ send_message(int code, char *data, int bytes)
pthread_mutex_unlock(&g_mutex);
return 1;
}
LLOGLN(10, ("send_message:"));
LHEXDUMP(10, (data, bytes));
pthread_mutex_unlock(&g_mutex);
return 0;
}
@ -1084,6 +1132,7 @@ SCardTransmit(SCARDHANDLE hCard, const SCARD_IO_REQUEST *pioSendPci,
offset += 4;
LLOGLN(10, (" cbRecvLength %d", (int)*pcbRecvLength));
memcpy(pbRecvBuffer, msg + offset, *pcbRecvLength);
LHEXDUMP(10, (pbRecvBuffer, *pcbRecvLength));
offset += *pcbRecvLength;
status = GET_UINT32(msg, offset);
free(msg);