When using a PPS time source, the PHC character device or network interface
specified using the -s command line flag will be ignored. Detect this
mis-configuration and throw a usage error.
Signed-off-by: Richard Cochran <richardcoch...@gmail.com>
---
phc2sys.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/phc2sys.c b/phc2sys.c
index 03347f0..e65bdf5 100644
--- a/phc2sys.c
+++ b/phc2sys.c
@@ -1253,6 +1253,10 @@ int main(int argc, char *argv[])
"cannot use a pps device unless destination is
CLOCK_REALTIME\n");
goto bad_usage;
}
+ if (hardpps_configured(pps_fd) && src_name) {
+ fprintf(stderr, "please specify -s or -d, but not both\n");
+ goto bad_usage;
+ }
print_set_progname(progname);
print_set_tag(config_get_string(cfg, NULL, "message_tag"));
--
2.20.1
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