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ntp: fix processing of kernel timestamps on non-Linux systems

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When the SO_TIMESTAMP socket option was enabled, the expected type of
control messages containing timestamps was SO_TIMESTAMP instead of
SCM_TIMESTAMP. This worked on Linux, where the two values are equal, but
not on the other supported systems. The timestamps were ignored and this
probably worsened the accuracy and stability of the synchronisation.
This commit is contained in:
Miroslav Lichvar 2016-08-22 13:14:45 +02:00
parent 78f20f7b3e
commit 12befc2afd
1 changed files with 1 additions and 1 deletions
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2
ntp_io.c
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@ -556,7 +556,7 @@ read_from_socket(void *anything)
#endif
#ifdef SO_TIMESTAMP
if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SO_TIMESTAMP) {
if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_TIMESTAMP) {
struct timeval tv;
memcpy(&tv, CMSG_DATA(cmsg), sizeof(tv));