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Setting Ecma119Image.now to maximum of effective olume creation date and

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volume modification date.
This commit is contained in:
Thomas Schmitt 2016-08-07 10:48:03 +02:00
parent 6321ed4d97
commit c5c9d4e7bf
1 changed files with 43 additions and 1 deletions
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44
libisofs/ecma119.c
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@ -2320,6 +2320,48 @@ ex:;
return ret; return ret;
} }
/* Determine the alleged time of image production by predicting the volume
creation and modification timestamps and taking the maximum of both.
*/
static
void ecma119_determine_now_time(Ecma119Image *target)
{
IsoWriteOpts *o;
time_t now = 0, t, t0;
uint8_t time_text[18];
int i;
t0 = time(NULL);
o = target->opts;
if (o->vol_uuid[0]) {
for(i = 0; i < 16; i++)
if(o->vol_uuid[i] < '0' || o->vol_uuid[i] > '9')
break;
else
time_text[i] = o->vol_uuid[i];
for(; i < 16; i++)
time_text[i] = '1';
time_text[16] = time_text[17] = 0;
t = iso_datetime_read_17(time_text);
if (t > now)
now = t;
} else {
if (o->vol_creation_time > 0) {
if (o->vol_creation_time > now)
now = o->vol_creation_time;
} else if (t0 > now) {
now = t0;
}
if (o->vol_modification_time > 0) {
if (o->vol_modification_time > now)
now = o->vol_modification_time;
} else if (t0 > now) {
now = t0;
}
}
target->now = now;
}
static static
int ecma119_image_new(IsoImage *src, IsoWriteOpts *in_opts, Ecma119Image **img) int ecma119_image_new(IsoImage *src, IsoWriteOpts *in_opts, Ecma119Image **img)
{ {
@ -2375,7 +2417,7 @@ int ecma119_image_new(IsoImage *src, IsoWriteOpts *in_opts, Ecma119Image **img)
target->dir_mode = opts->replace_dir_mode == 2 ? opts->dir_mode : 0555; target->dir_mode = opts->replace_dir_mode == 2 ? opts->dir_mode : 0555;
target->file_mode = opts->replace_file_mode == 2 ? opts->file_mode : 0444; target->file_mode = opts->replace_file_mode == 2 ? opts->file_mode : 0444;
target->now = time(NULL); ecma119_determine_now_time(target);
target->replace_timestamps = opts->replace_timestamps ? 1 : 0; target->replace_timestamps = opts->replace_timestamps ? 1 : 0;
target->timestamp = opts->replace_timestamps == 2 ? target->timestamp = opts->replace_timestamps == 2 ?