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libfdisk: sanity check, to prevent overlapping partitions from being partly reported as free 

i noticed wrongly reported free space when looking with cfdisk on
an USB drive prepared with the latest alpine *.iso[1].

Feel free to apply below patch, which fixed the issue for me.

Greetings
  Fabian

[1]: http://dl-cdn.alpinelinux.org/alpine/v3.9/releases/x86/alpine-extended-3.9.0-x86.iso

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Fabian.Kirsch@dlr.de 2019-02-13 14:49:10 +00:00 committed by Karel Zak
parent a57c9865f8
commit 9a76780f86
1 changed files with 7 additions and 2 deletions
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9
libfdisk/src/table.c
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@ -578,7 +578,7 @@ done:
*
* Note that free space smaller than grain (see fdisk_get_grain_size()) is
* ignored.
*
* Returns: 0 on success, otherwise, a corresponding error.
*/
int fdisk_get_freespaces(struct fdisk_context *cxt, struct fdisk_table **tb)
@ -635,7 +635,12 @@ int fdisk_get_freespaces(struct fdisk_context *cxt, struct fdisk_table **tb)
/* add gaps between logical partitions */
if (fdisk_partition_is_container(pa))
rc = check_container_freespace(cxt, parts, *tb, pa);
last = fdisk_partition_get_end(pa);
if (fdisk_partition_has_end(pa)) {
fdisk_sector_t pa_end = fdisk_partition_get_end(pa);
if (pa_end > last)
last = fdisk_partition_get_end(pa);
}
nparts++;
}