Detect file modification properly by using tv_nsec.

POSIX 2008 standardizes st_mtim, meaning we can simply use nanosecond
precision to detect file modification.

MFC after:	2 weeks

diff --git a/libutil/pw_util.c b/libutil/pw_util.c
index 5cd27b155ff4c96bc96b11201a52019f239854e9..63c63de81aa68c755619ef69fc06b79fe9c8895f 100644 (file)
--- a/libutil/pw_util.c
+++ b/libutil/pw_util.c
@@ -347,7 +347,8 @@ pw_edit(int notsetuid)
        sigprocmask(SIG_SETMASK, &oldsigset, NULL);
        if (stat(tempname, &st2) == -1)
                return (-1);
-       return (st1.st_mtime != st2.st_mtime);
+       return (st1.st_mtim.tv_sec != st2.st_mtim.tv_sec ||
+           st1.st_mtim.tv_nsec != st2.st_mtim.tv_nsec);
 }
 
 /*