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Check SOCK protocol version

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This commit is contained in:
Miroslav Lichvar 2009-11-24 17:48:30 +01:00
parent 6d242a33f5
commit dd5405a281
1 changed files with 26 additions and 2 deletions
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28
refclock_sock.c
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@ -35,24 +35,48 @@
#include <sys/un.h> #include <sys/un.h>
#include <unistd.h> #include <unistd.h>
#define SOCK_MAGIC 0x534f434b
struct sock_sample { struct sock_sample {
struct timeval tv; struct timeval tv;
double offset; double offset;
int pulse; int pulse;
int leap; int leap;
int _pad;
int magic;
}; };
static void read_sample(void *anything) static void read_sample(void *anything)
{ {
struct sock_sample sample; struct sock_sample sample;
RCL_Instance instance; RCL_Instance instance;
int sockfd; int sockfd, s;
instance = (RCL_Instance)anything; instance = (RCL_Instance)anything;
sockfd = (long)RCL_GetDriverData(instance); sockfd = (long)RCL_GetDriverData(instance);
if (recv(sockfd, &sample, sizeof (sample), 0) != sizeof (sample)) s = recv(sockfd, &sample, sizeof (sample), 0);
if (s < 0) {
#if 0
LOG(LOGS_INFO, LOGF_Refclock, "Error reading from SOCK socket : %s", strerror(errno));
#endif
return; return;
}
if (s != sizeof (sample)) {
#if 0
LOG(LOGS_INFO, LOGF_Refclock, "Unexpected length of SOCK sample : %d != %d", s, sizeof (sample));
#endif
return;
}
if (sample.magic != SOCK_MAGIC) {
#if 0
LOG(LOGS_INFO, LOGF_Refclock, "Unexpected magic number in SOCK sample : %x != %x", sample.magic, SOCK_MAGIC);
#endif
return;
}
if (sample.pulse) { if (sample.pulse) {
RCL_AddPulse(instance, &sample.tv, sample.offset); RCL_AddPulse(instance, &sample.tv, sample.offset);