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From: Vladimir Zapolskiy <vzapolskiy@gmail.com>
To: uclibc@uclibc.org
Subject: [PATCH v2] lutimes: add lutimes support
Date: Wed, 2 Jun 2010 10:27:16 +0400
Message-Id: <1275460036-3289-1-git-send-email-vzapolskiy@gmail.com>
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Cc: Vladimir Zapolskiy <vzapolskiy@gmail.com>
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This patch adds lutimes library call support.
Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com>
---
include/sys/time.h | 4 ++-
libc/sysdeps/linux/common/lutimes.c | 38 +++++++++++++++++++++++++++++++++++
2 files changed, 41 insertions(+), 1 deletions(-)
create mode 100644 libc/sysdeps/linux/common/lutimes.c
diff --git a/include/sys/time.h b/include/sys/time.h
index 33f5873..952e95a 100644
--- a/include/sys/time.h
+++ b/include/sys/time.h
@@ -144,14 +144,16 @@ extern int utimes (__const char *__file, __const struct timeval __tvp[2])
__THROW __nonnull ((1));
libc_hidden_proto(utimes)
-#if 0 /*def __USE_BSD*/
+#ifdef __USE_BSD
/* Same as `utimes', but does not follow symbolic links. */
extern int lutimes (__const char *__file, __const struct timeval __tvp[2])
__THROW __nonnull ((1));
+#if 0
/* Same as `utimes', but takes an open file descriptor instead of a name. */
extern int futimes (int __fd, __const struct timeval __tvp[2]) __THROW;
#endif
+#endif
#ifdef __USE_GNU
/* Change the access time of FILE relative to FD to TVP[0] and the
diff --git a/libc/sysdeps/linux/common/lutimes.c b/libc/sysdeps/linux/common/lutimes.c
new file mode 100644
index 0000000..0b4a8ea
--- /dev/null
+++ b/libc/sysdeps/linux/common/lutimes.c
@@ -0,0 +1,38 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * lutimes() implementation for uClibc
+ *
+ * Copyright (C) 2010 Vladimir Zapolskiy <vzapolskiy@gmail.com>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sys/syscall.h>
+#include <time.h>
+
+#ifdef __NR_lutimes
+_syscall2(int, lutimes, const char *, file, const struct timeval *, tvp)
+#else
+#include <sys/time.h>
+#include <fcntl.h>
+
+int lutimes(const char *file, const struct timeval tvp[2])
+{
+ struct timespec ts[2];
+
+ if (tvp != NULL)
+ {
+ if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000
+ || tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
+ {
+ __set_errno(EINVAL);
+ return -1;
+ }
+
+ TIMEVAL_TO_TIMESPEC(&tvp[0], &ts[0]);
+ TIMEVAL_TO_TIMESPEC(&tvp[1], &ts[1]);
+ }
+
+ return utimensat(AT_FDCWD, file, tvp ? ts : NULL, AT_SYMLINK_NOFOLLOW);
+}
+#endif
--
1.7.0.3
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