diff options
Diffstat (limited to 'statinfo.c')
| -rw-r--r-- | statinfo.c | 47 |
1 files changed, 45 insertions, 2 deletions
diff --git a/statinfo.c b/statinfo.c index 17bb8966c3..3c6bc049c1 100644 --- a/statinfo.c +++ b/statinfo.c @@ -2,6 +2,22 @@ #include "environment.h" #include "statinfo.h" +/* + * Munge st_size into an unsigned int. + */ +static unsigned int munge_st_size(off_t st_size) { + unsigned int sd_size = st_size; + + /* + * If the file is an exact multiple of 4 GiB, modify the value so it + * doesn't get marked as racily clean (zero). + */ + if (!sd_size && st_size) + return 0x80000000; + else + return sd_size; +} + void fill_stat_data(struct stat_data *sd, struct stat *st) { sd->sd_ctime.sec = (unsigned int)st->st_ctime; @@ -12,7 +28,34 @@ void fill_stat_data(struct stat_data *sd, struct stat *st) sd->sd_ino = st->st_ino; sd->sd_uid = st->st_uid; sd->sd_gid = st->st_gid; - sd->sd_size = st->st_size; + sd->sd_size = munge_st_size(st->st_size); +} + +static void set_times(struct stat *st, const struct stat_data *sd) +{ + st->st_ctime = sd->sd_ctime.sec; + st->st_mtime = sd->sd_mtime.sec; +#ifdef NO_NSEC + ; /* nothing */ +#else +#ifdef USE_ST_TIMESPEC + st->st_ctimespec.tv_nsec = sd->sd_ctime.nsec; + st->st_mtimespec.tv_nsec = sd->sd_mtime.nsec; +#else + st->st_ctim.tv_nsec = sd->sd_ctime.nsec; + st->st_mtim.tv_nsec = sd->sd_mtime.nsec; +#endif +#endif +} + +void fake_lstat_data(const struct stat_data *sd, struct stat *st) +{ + set_times(st, sd); + st->st_dev = sd->sd_dev; + st->st_ino = sd->sd_ino; + st->st_uid = sd->sd_uid; + st->st_gid = sd->sd_gid; + st->st_size = sd->sd_size; } int match_stat_data(const struct stat_data *sd, struct stat *st) @@ -51,7 +94,7 @@ int match_stat_data(const struct stat_data *sd, struct stat *st) changed |= INODE_CHANGED; #endif - if (sd->sd_size != (unsigned int) st->st_size) + if (sd->sd_size != munge_st_size(st->st_size)) changed |= DATA_CHANGED; return changed; |