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-rw-r--r--bin/ykfde.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/bin/ykfde.c b/bin/ykfde.c
index 56a2832..8a766e5 100644
--- a/bin/ykfde.c
+++ b/bin/ykfde.c
@@ -312,6 +312,10 @@ int main(int argc, char **argv) {
fprintf(stderr, "Failed to write challenge to file.\n");
goto out50;
}
+ if (fsync(challengefiletmp) < 0) {
+ fprintf(stderr, "Failed to sync file to disk.\n");
+ goto out50;
+ }
challengefiletmp = close(challengefiletmp);
/* now that the new challenge has been written to file...