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New -osirrox option sparse= controls extraction into sparse files

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This commit is contained in:
Thomas Schmitt
2020-11-03 09:27:41 +01:00
parent 66fe150831
commit 05de7ec5ee
13 changed files with 464 additions and 82 deletions
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16
xorriso/opts_i_o.c
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@ -1746,6 +1746,7 @@ int Xorriso_option_osirrox(struct XorrisO *xorriso, char *mode, int flag)
{
int l, allow_restore;
char *npt, *cpt;
double num= 0.0;
allow_restore= xorriso->allow_restore;
@ -1799,6 +1800,21 @@ int Xorriso_option_osirrox(struct XorrisO *xorriso, char *mode, int flag)
xorriso->do_md5|= 3 << 6;
} else if(strncmp(cpt, "check_md5_off", l)==0 && l >= 13) {
xorriso->do_md5&= ~(3 << 6);
} else if(strncmp(cpt, "sparse=", 7) == 0 && l >= 7) {
if(strncmp(cpt + 7, "off", 3) == 0 && l == 10) {
num= 0.0;
} else {
Xorriso__parse_size_param(cpt, 7, l, &num);
if(num < 1.0)
num= 0.0;
if(num > 1.0 * 1024.0 * 1024.0 * 1024.0) {
strcpy(xorriso->info_text,
"osirrox sparse= too large (allowed: off, 1 to 1g)");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
return(0);
}
}
xorriso->sparse_min_gap= num;
} else {
unknown_mode:;
sprintf(xorriso->info_text, "-osirrox: unknown mode '%s'", cpt);