FlapJackApps/libdivecomputer
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Fixed a mistake in the transfer protocol.

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The device sends the size of the data stream before the actual data.
This commit is contained in:
Jef Driesen 2008-04-16 17:48:50 +00:00
parent c2bc70e8a0
commit 30ff9e667a
1 changed files with 12 additions and 0 deletions
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12
uwatec_smart.c
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@ -1,6 +1,7 @@
#include <stdlib.h> // malloc, free #include <stdlib.h> // malloc, free
#include <string.h> // strncmp, strstr #include <string.h> // strncmp, strstr
#include <time.h> // time, strftime #include <time.h> // time, strftime
#include <assert.h> // assert
#include "uwatec.h" #include "uwatec.h"
#include "irda.h" #include "irda.h"
@ -297,6 +298,17 @@ uwatec_smart_read (smart *device, unsigned char data[], unsigned int msize)
free (package); free (package);
return EXITCODE (rc); return EXITCODE (rc);
} }
rc = irda_socket_read (device->socket, answer, 4);
if (rc != 4) {
WARNING ("Failed to receive the answer.");
return EXITCODE (rc);
}
unsigned int length = answer[0] + (answer[1] << 8) +
(answer[2] << 16) + (answer[3] << 24);
message ("handshake: size=%u\n", length);
assert (length == size + 4);
unsigned int nbytes = 0; unsigned int nbytes = 0;
while (nbytes < size) { while (nbytes < size) {