structure.
****************************************************************************/
-static struct timespec calc_create_time(const struct stat *st)
+static struct timespec calc_create_time_stat(const struct stat *st)
{
struct timespec ret, ret1;
struct timespec c_time = get_ctimespec(st);
return ret;
}
+/****************************************************************************
+ Return the best approximation to a 'create time' under UNIX from a stat_ex
+ structure.
+****************************************************************************/
+
+static struct timespec calc_create_time_stat_ex(const struct stat_ex *st)
+{
+ struct timespec ret, ret1;
+ struct timespec c_time = st->st_ex_ctime;
+ struct timespec m_time = st->st_ex_mtime;
+ struct timespec a_time = st->st_ex_atime;
+
+ ret = timespec_compare(&c_time, &m_time) < 0 ? c_time : m_time;
+ ret1 = timespec_compare(&ret, &a_time) < 0 ? ret : a_time;
+
+ if(!null_timespec(ret1)) {
+ return ret1;
+ }
+
+ /*
+ * One of ctime, mtime or atime was zero (probably atime).
+ * Just return MIN(ctime, mtime).
+ */
+ return ret;
+}
+
/****************************************************************************
Return the 'create time' from a stat struct if it exists (birthtime) or else
use the best approximation.
****************************************************************************/
-static struct timespec get_create_timespec(const struct stat *pst)
+static void make_create_timespec(const struct stat *pst, struct stat_ex *dst,
+ bool fake_dir_create_times)
{
- struct timespec ret;
-
- if (S_ISDIR(pst->st_mode) && lp_fake_dir_create_times()) {
- ret.tv_sec = 315493200L; /* 1/1/1980 */
- ret.tv_nsec = 0;
- return ret;
+ if (S_ISDIR(pst->st_mode) && fake_dir_create_times) {
+ dst->st_ex_btime.tv_sec = 315493200L; /* 1/1/1980 */
+ dst->st_ex_btime.tv_nsec = 0;
}
+ dst->st_ex_calculated_birthtime = false;
+
#if defined(HAVE_STRUCT_STAT_ST_BIRTHTIMESPEC_TV_NSEC)
- ret = pst->st_birthtimespec;
+ dst->st_ex_btime = pst->st_birthtimespec;
#elif defined(HAVE_STRUCT_STAT_ST_BIRTHTIMENSEC)
- ret.tv_sec = pst->st_birthtime;
- ret.tv_nsec = pst->st_birthtimenspec;
+ dst->st_ex_btime.tv_sec = pst->st_birthtime;
+ dst->st_ex_btime.tv_nsec = pst->st_birthtimenspec;
#elif defined(HAVE_STRUCT_STAT_ST_BIRTHTIME)
- ret.tv_sec = pst->st_birthtime;
- ret.tv_nsec = 0;
+ dst->st_ex_btime.tv_sec = pst->st_birthtime;
+ dst->st_ex_btime.tv_nsec = 0;
#else
- ret = calc_create_time(pst);
+ dst->st_ex_btime = calc_create_time_stat(pst);
+ dst->st_ex_calculated_birthtime = true;
#endif
/* Deal with systems that don't initialize birthtime correctly.
* Pointed out by SATOH Fumiyasu <fumiyas@osstech.jp>.
*/
- if (null_timespec(ret)) {
- ret = calc_create_time(pst);
+ if (null_timespec(dst->st_ex_btime)) {
+ dst->st_ex_btime = calc_create_time_stat(pst);
+ dst->st_ex_calculated_birthtime = true;
+ }
+}
+
+/****************************************************************************
+ If we update a timestamp in a stat_ex struct we may have to recalculate
+ the birthtime. For now only implement this for write time, but we may
+ also need to do it for atime and ctime. JRA.
+****************************************************************************/
+
+void update_stat_ex_mtime(struct stat_ex *dst,
+ struct timespec write_ts)
+{
+ dst->st_ex_mtime = write_ts;
+
+ /* We may have to recalculate btime. */
+ if (dst->st_ex_calculated_birthtime) {
+ dst->st_ex_btime = calc_create_time_stat_ex(dst);
}
- return ret;
}
+void update_stat_ex_create_time(struct stat_ex *dst,
+ struct timespec create_time)
+{
+ dst->st_ex_btime = create_time;
+ dst->st_ex_calculated_birthtime = false;
+}
static void init_stat_ex_from_stat (struct stat_ex *dst,
- const struct stat *src)
+ const struct stat *src,
+ bool fake_dir_create_times)
{
dst->st_ex_dev = src->st_dev;
dst->st_ex_ino = src->st_ino;
dst->st_ex_atime = get_atimespec(src);
dst->st_ex_mtime = get_mtimespec(src);
dst->st_ex_ctime = get_ctimespec(src);
- dst->st_ex_btime = get_create_timespec(src);
+ make_create_timespec(src, dst, fake_dir_create_times);
dst->st_ex_blksize = src->st_blksize;
dst->st_ex_blocks = src->st_blocks;
A stat() wrapper that will deal with 64 bit filesizes.
********************************************************************/
-int sys_stat(const char *fname,SMB_STRUCT_STAT *sbuf)
+int sys_stat(const char *fname, SMB_STRUCT_STAT *sbuf,
+ bool fake_dir_create_times)
{
int ret;
#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_STAT64)
if (S_ISDIR(statbuf.st_mode)) {
statbuf.st_size = 0;
}
- init_stat_ex_from_stat(sbuf, &statbuf);
+ init_stat_ex_from_stat(sbuf, &statbuf, fake_dir_create_times);
}
return ret;
}
An fstat() wrapper that will deal with 64 bit filesizes.
********************************************************************/
-int sys_fstat(int fd,SMB_STRUCT_STAT *sbuf)
+int sys_fstat(int fd, SMB_STRUCT_STAT *sbuf, bool fake_dir_create_times)
{
int ret;
#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_FSTAT64)
if (S_ISDIR(statbuf.st_mode)) {
statbuf.st_size = 0;
}
- init_stat_ex_from_stat(sbuf, &statbuf);
+ init_stat_ex_from_stat(sbuf, &statbuf, fake_dir_create_times);
}
return ret;
}
An lstat() wrapper that will deal with 64 bit filesizes.
********************************************************************/
-int sys_lstat(const char *fname,SMB_STRUCT_STAT *sbuf)
+int sys_lstat(const char *fname,SMB_STRUCT_STAT *sbuf,
+ bool fake_dir_create_times)
{
int ret;
#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_LSTAT64)
if (S_ISDIR(statbuf.st_mode)) {
statbuf.st_size = 0;
}
- init_stat_ex_from_stat(sbuf, &statbuf);
+ init_stat_ex_from_stat(sbuf, &statbuf, fake_dir_create_times);
}
return ret;
}
+/*******************************************************************
+ An posix_fallocate() wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+#if (defined(HAVE_POSIX_FALLOCATE64) || defined(HAVE_POSIX_FALLOCATE)) && !defined(HAVE_BROKEN_POSIX_FALLOCATE)
+int sys_posix_fallocate(int fd, SMB_OFF_T offset, SMB_OFF_T len)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OFF64_T) && defined(HAVE_POSIX_FALLOCATE64)
+ return posix_fallocate64(fd, offset, len);
+#else
+ return posix_fallocate(fd, offset, len);
+#endif
+}
+#endif
+
/*******************************************************************
An ftruncate() wrapper that will deal with 64 bit filesizes.
********************************************************************/
A flock() wrapper that will perform the kernel flock.
********************************************************************/
-void kernel_flock(int fd, uint32 share_mode)
+void kernel_flock(int fd, uint32 share_mode, uint32 access_mask)
{
#if HAVE_KERNEL_SHARE_MODES
int kernel_mode = 0;
}
argl[i++] = NULL;
+ TALLOC_FREE(trunc_cmd);
return argl;
nomem:
git.samba.org / amitay / samba.git / blobdiff