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Date: Wed, 06 Aug 2008 17:09:15 +0800
From: Li Zefan <lizf@...fujitsu.com>
To: "Theodore Ts'o" <tytso@....edu>
CC: linux-ext4@...r.kernel.org
Subject: [PATCH 3/3][e2fsprogs] lsattr: list file creation time
Add option '-c' to list files' creation time:
$ lsattr -c tmp
2008-08-06 15:36:24.762780702 +0800 -------------e- tmp
Signed-off-by: Li Zefan <lizf@...fujitsu.com>
---
lib/e2p/Makefile.in | 4 +-
lib/e2p/e2p.h | 2 +-
lib/e2p/fgetcrtime.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++
lib/ext2fs/ext2_fs.h | 1 +
misc/lsattr.1.in | 3 ++
misc/lsattr.c | 24 +++++++++++++++++-
6 files changed, 97 insertions(+), 4 deletions(-)
create mode 100644 lib/e2p/fgetcrtime.c
diff --git a/lib/e2p/Makefile.in b/lib/e2p/Makefile.in
index 6557480..4df3b9a 100644
--- a/lib/e2p/Makefile.in
+++ b/lib/e2p/Makefile.in
@@ -19,7 +19,7 @@ all:: e2p.pc
OBJS= feature.o fgetflags.o fsetflags.o fgetversion.o fsetversion.o \
getflags.o getversion.o hashstr.o iod.o ls.o mntopts.o \
parse_num.o pe.o pf.o ps.o setflags.o setversion.o uuid.o \
- ostype.o percent.o
+ ostype.o percent.o fgetcrtime.o
SRCS= $(srcdir)/feature.c $(srcdir)/fgetflags.c \
$(srcdir)/fsetflags.c $(srcdir)/fgetversion.c \
@@ -28,7 +28,7 @@ SRCS= $(srcdir)/feature.c $(srcdir)/fgetflags.c \
$(srcdir)/ls.c $(srcdir)/mntopts.c $(srcdir)/parse_num.c \
$(srcdir)/pe.c $(srcdir)/pf.c $(srcdir)/ps.c \
$(srcdir)/setflags.c $(srcdir)/setversion.c $(srcdir)/uuid.c \
- $(srcdir)/ostype.c $(srcdir)/percent.c
+ $(srcdir)/ostype.c $(srcdir)/percent.c $(srcdir)/fgetcrtime.c
HFILES= e2p.h
LIBRARY= libe2p
diff --git a/lib/e2p/e2p.h b/lib/e2p/e2p.h
index 06e2120..644248a 100644
--- a/lib/e2p/e2p.h
+++ b/lib/e2p/e2p.h
@@ -15,9 +15,9 @@
#define PFOPT_LONG 1 /* Must be 1 for compatibility with `int long_format'. */
-
int fgetflags (const char * name, unsigned long * flags);
int fgetversion (const char * name, unsigned long * version);
+int fgetcrtime (const char * name, struct timespec * crtime);
int fsetflags (const char * name, unsigned long flags);
int fsetversion (const char * name, unsigned long version);
int getflags (int fd, unsigned long * flags);
diff --git a/lib/e2p/fgetcrtime.c b/lib/e2p/fgetcrtime.c
new file mode 100644
index 0000000..99bb9d5
--- /dev/null
+++ b/lib/e2p/fgetcrtime.c
@@ -0,0 +1,67 @@
+/*
+ * fgetversion.c - Get the file creation time on an ext4 file system
+ *
+ * Copyright (C) 1993, 1994 Remy Card <card@...i.ibp.fr>
+ * Laboratoire MASI, Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ * Copyright (C) 2008 Li Zefan <lizf@...fujitsu.cn>
+ *
+ * This file can be redistributed under the terms of the GNU Library General
+ * Public License
+ */
+
+#define _LARGEFILE_SOURCE
+#define _LARGEFILE64_SOURCE
+
+#if HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <time.h>
+
+#include "e2p.h"
+
+#ifdef O_LARGEFILE
+#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE)
+#else
+#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK)
+#endif
+
+int fgetcrtime (const char * name, struct timespec * crtime)
+{
+#if HAVE_EXT2_IOCTLS
+#if !APPLE_DARWIN
+ int fd, r, save_errno = 0;
+ struct timespec cr;
+
+ fd = open (name, OPEN_FLAGS);
+ if (fd == -1)
+ return -1;
+ r = ioctl (fd, EXT4_IOC_GETCRTIME, &cr);
+ if (r == -1)
+ save_errno = errno;
+ *crtime = cr;
+ close (fd);
+ if (save_errno)
+ errno = save_errno;
+ return r;
+#else
+ int ver=-1, err;
+ struct timespec cr;
+
+ err = syscall(SYS_fsctl, name, EXT4_IOC_GETCRTIME, &cr, 0);
+ *crtime = cr;
+ return(err);
+#endif
+#else /* ! HAVE_EXT2_IOCTLS */
+ extern int errno;
+ errno = EOPNOTSUPP;
+ return -1;
+#endif /* ! HAVE_EXT2_IOCTLS */
+}
+
diff --git a/lib/ext2fs/ext2_fs.h b/lib/ext2fs/ext2_fs.h
index 554c708..55a56f6 100644
--- a/lib/ext2fs/ext2_fs.h
+++ b/lib/ext2fs/ext2_fs.h
@@ -316,6 +316,7 @@ struct ext4_new_group_input {
#define EXT2_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)
#define EXT2_IOC_GROUP_ADD _IOW('f', 8,struct ext2_new_group_input)
#define EXT4_IOC_GROUP_ADD _IOW('f', 8,struct ext4_new_group_input)
+#define EXT4_IOC_GETCRTIME _IOR('f', 9, struct timespec)
/*
* Structure of an inode on the disk
diff --git a/misc/lsattr.1.in b/misc/lsattr.1.in
index 7798a34..e733b68 100644
--- a/misc/lsattr.1.in
+++ b/misc/lsattr.1.in
@@ -26,6 +26,9 @@ Display the program version.
.B \-a
List all files in directories, including files that start with `.'.
.TP
+.B \-c
+List the file's creation time.
+.TP
.B \-d
List directories like other files, rather than listing their contents.
.TP
diff --git a/misc/lsattr.c b/misc/lsattr.c
index 093f50f..63ce5c1 100644
--- a/misc/lsattr.c
+++ b/misc/lsattr.c
@@ -37,6 +37,7 @@ extern char *optarg;
#include <string.h>
#include <sys/param.h>
#include <sys/stat.h>
+#include <time.h>
#include "ext2fs/ext2_fs.h"
#include "et/com_err.h"
@@ -59,6 +60,7 @@ static unsigned pf_options;
static int recursive;
static int verbose;
static int generation_opt;
+static int crtime_opt;
#ifdef _LFS64_LARGEFILE
#define LSTAT lstat64
@@ -78,12 +80,29 @@ static void list_attributes (const char * name)
{
unsigned long flags;
unsigned long generation;
+ struct timespec crtime;
+ struct tm *tm;
+ char str[1024];
+ size_t p;
if (fgetflags (name, &flags) == -1) {
com_err (program_name, errno, _("While reading flags on %s"),
name);
return;
}
+ if (crtime_opt) {
+ if (fgetcrtime (name, &crtime) == -1) {
+ com_err (program_name, errno,
+ _("While reading creation time on %s"),
+ name);
+ return;
+ }
+ tm = localtime (&crtime.tv_sec);
+ p = strftime (str, 1024, "%Y-%m-%d %H:%M:%S", tm);
+ p += sprintf (str+p, ".%ld", crtime.tv_nsec);
+ strftime (str+p, 1024-p, " %z", tm);
+ printf ("%s ", str);
+ }
if (generation_opt) {
if (fgetversion (name, &generation) == -1) {
com_err (program_name, errno,
@@ -164,7 +183,7 @@ int main (int argc, char ** argv)
#endif
if (argc && *argv)
program_name = *argv;
- while ((c = getopt (argc, argv, "RVadlv")) != EOF)
+ while ((c = getopt (argc, argv, "RVadlvc")) != EOF)
switch (c)
{
case 'R':
@@ -185,6 +204,9 @@ int main (int argc, char ** argv)
case 'v':
generation_opt = 1;
break;
+ case 'c':
+ crtime_opt = 1;
+ break;
default:
usage();
}
--
1.5.4.rc3
--
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