From 0cba30073410ba499834ac26dee3f81a75c8de4f Mon Sep 17 00:00:00 2001 From: Jeremy Allison Date: Thu, 28 Aug 2008 12:09:06 -0700 Subject: [PATCH] Add st_birthtime and friends for accurate create times on systems that support it (*BSD and MacOSX). This really needs to be in 3.2.x. Should have done this ages ago, sorry. Jeremy. --- source/configure.in | 90 +++++++++++++++++++++++++++++++++++++++++++++ source/lib/time.c | 40 +++++++++++++++----- source/smbd/reply.c | 7 ++-- 3 files changed, 124 insertions(+), 13 deletions(-) diff --git a/source/configure.in b/source/configure.in index 0086be7400b..3c699d56aba 100644 --- a/source/configure.in +++ b/source/configure.in @@ -1334,6 +1334,96 @@ if test x"$samba_cv_stat_hires_notimespec" = x"yes" ; then [whether struct stat has sub-second timestamps without struct timespec]) fi +AC_CACHE_CHECK([whether struct stat has st_birthtimespec], samba_cv_stat_st_birthtimespec, + [ + AC_TRY_COMPILE( + [ +#if TIME_WITH_SYS_TIME +# include +# include +#else +# if HAVE_SYS_TIME_H +# include +# else +# include +# endif +#endif +#ifdef HAVE_SYS_STAT_H +#include +#endif + ], + [ + struct timespec t; + struct stat s = {0}; + t = s.st_birthtimespec; + ], + samba_cv_stat_st_birthtimespec=yes, samba_cv_stat_birthtimespec=no) + ]) + +if test x"$samba_cv_stat_st_birthtimespec" = x"yes" ; then + AC_DEFINE(HAVE_STAT_ST_BIRTHTIMESPEC, 1, [whether struct stat contains st_birthtimespec]) +fi + +AC_CACHE_CHECK([whether struct stat has st_birthtimensec], samba_cv_stat_st_birthtimensec, + [ + AC_TRY_COMPILE( + [ +#if TIME_WITH_SYS_TIME +# include +# include +#else +# if HAVE_SYS_TIME_H +# include +# else +# include +# endif +#endif +#ifdef HAVE_SYS_STAT_H +#include +#endif + ], + [ + struct timespec t; + struct stat s = {0}; + t.tv_nsec = s.st_birthtimensec; + ], + samba_cv_stat_st_birthtimensec=yes, samba_cv_stat_birthtimensec=no) + ]) + +if test x"$samba_cv_stat_st_birthtimensec" = x"yes" ; then + AC_DEFINE(HAVE_STAT_ST_BIRTHTIMENSEC, 1, [whether struct stat contains st_birthtimensec]) +fi + +AC_CACHE_CHECK([whether struct stat has st_birthtime], samba_cv_stat_st_birthtime, + [ + AC_TRY_COMPILE( + [ +#if TIME_WITH_SYS_TIME +# include +# include +#else +# if HAVE_SYS_TIME_H +# include +# else +# include +# endif +#endif +#ifdef HAVE_SYS_STAT_H +#include +#endif + ], + [ + struct time_t t; + struct stat s = {0}; + t = s.st_birthtime; + ], + samba_cv_stat_st_birthtime=yes, samba_cv_stat_birthtime=no) + ]) + +if test x"$samba_cv_stat_st_birthtime" = x"yes" ; then + AC_DEFINE(HAVE_STAT_ST_BIRTHTIME, 1, [whether struct stat contains st_birthtime]) +fi + ##################################### # needed for SRV lookups AC_CHECK_LIB(resolv, dn_expand) diff --git a/source/lib/time.c b/source/lib/time.c index 17990b92699..8ab001ec922 100644 --- a/source/lib/time.c +++ b/source/lib/time.c @@ -826,14 +826,10 @@ void put_long_date(char *p, time_t t) structure. ****************************************************************************/ -time_t get_create_time(const SMB_STRUCT_STAT *st,bool fake_dirs) +static time_t calc_create_time(const SMB_STRUCT_STAT *st) { time_t ret, ret1; - if(S_ISDIR(st->st_mode) && fake_dirs) { - return (time_t)315493200L; /* 1/1/1980 */ - } - ret = MIN(st->st_ctime, st->st_mtime); ret1 = MIN(ret, st->st_atime); @@ -848,12 +844,36 @@ time_t get_create_time(const SMB_STRUCT_STAT *st,bool fake_dirs) return ret; } -struct timespec get_create_timespec(const SMB_STRUCT_STAT *st,bool fake_dirs) +/**************************************************************************** + Return the 'create time' from a stat struct if it exists (birthtime) or else + use the best approximation. +****************************************************************************/ + +struct timespec get_create_timespec(const SMB_STRUCT_STAT *pst,bool fake_dirs) { - struct timespec ts; - ts.tv_sec = get_create_time(st, fake_dirs); - ts.tv_nsec = 0; - return ts; + struct timespec ret; + + if(S_ISDIR(pst->st_mode) && fake_dirs) { + ret.tv_sec = 315493200L; /* 1/1/1980 */ + ret.tv_nsec = 0; + return ret; + } + +#if defined(HAVE_STAT_ST_BIRTHTIMESPEC) + return pst->st_birthtimespec; +#elif defined(HAVE_STAT_ST_BIRTHTIMENSEC) + ret.tv_sec = pst->st_birthtime; + ret.tv_nsec = pst->st_birthtimenspec; + return ret; +#elif defined(HAVE_STAT_ST_BIRTHTIME) + ret.tv_sec = pst->st_birthtime; + ret.tv_nsec = 0; + return ret; +#else + ret.tv_sec = calc_create_time(pst); + ret.tv_nsec = 0; + return ret; +#endif } /**************************************************************************** diff --git a/source/smbd/reply.c b/source/smbd/reply.c index 31844c58d4f..67b382d4cd6 100644 --- a/source/smbd/reply.c +++ b/source/smbd/reply.c @@ -7096,6 +7096,7 @@ void reply_getattrE(struct smb_request *req) SMB_STRUCT_STAT sbuf; int mode; files_struct *fsp; + struct timespec create_ts; START_PROFILE(SMBgetattrE); @@ -7130,9 +7131,9 @@ void reply_getattrE(struct smb_request *req) reply_outbuf(req, 11, 0); - srv_put_dos_date2((char *)req->outbuf, smb_vwv0, - get_create_time(&sbuf, - lp_fake_dir_create_times(SNUM(conn)))); + create_ts = get_create_timespec(&sbuf, + lp_fake_dir_create_times(SNUM(conn))); + srv_put_dos_date2((char *)req->outbuf, smb_vwv0, create_ts.tv_sec); srv_put_dos_date2((char *)req->outbuf, smb_vwv2, sbuf.st_atime); /* Should we check pending modtime here ? JRA */ srv_put_dos_date2((char *)req->outbuf, smb_vwv4, sbuf.st_mtime); -- 2.34.1