[RFC PATCH 14/38] utimes: prefer utimesat syscall

Jonas Bonn jonas at southpole.se
Tue Sep 6 08:30:38 UTC 2011


Signed-off-by: Jonas Bonn <jonas at southpole.se>
---
 libc/sysdeps/linux/common/utimes.c |   21 ++++++++++++++++++++-
 1 files changed, 20 insertions(+), 1 deletions(-)

diff --git a/libc/sysdeps/linux/common/utimes.c b/libc/sysdeps/linux/common/utimes.c
index 99d9202..57cdc60 100644
--- a/libc/sysdeps/linux/common/utimes.c
+++ b/libc/sysdeps/linux/common/utimes.c
@@ -10,9 +10,28 @@
 #include <sys/syscall.h>
 #include <utime.h>
 #include <sys/time.h>
+#include <fcntl.h>
+#include <stddef.h>
 
+#ifdef __NR_utimensat
+int utimes(const char* file, const struct timeval tvp[2])
+{
+	struct timespec ts[2], *times;
+
+	if (tvp) {
+		times = ts;
+		times[0].tv_sec = tvp[0].tv_sec;
+		times[0].tv_nsec = tvp[0].tv_usec * 1000;
+		times[1].tv_sec = tvp[1].tv_sec;
+		times[1].tv_nsec = tvp[1].tv_usec * 1000;
+	} else {
+		times = NULL;
+	}
+
+	return utimensat(AT_FDCWD, file, times, 0);
+}
 
-#ifdef __NR_utimes
+#elif defined __NR_utimes
 _syscall2(int, utimes, const char *, file, const struct timeval *, tvp)
 #else
 #include <stdlib.h>
-- 
1.7.5.4



More information about the uClibc mailing list