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efi_loader: adjust sorting of capsules

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Up to now we only compared the first letter of the capsule name to sort
them alphabetically. Properly sort by the Unicode alphabet.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt 2022-12-29 14:44:05 +01:00
parent 07355760b1
commit 93cdb95238
1 changed files with 6 additions and 3 deletions
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9
lib/efi_loader/efi_capsule.c
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@ -1108,10 +1108,13 @@ static efi_status_t efi_capsule_scan_dir(u16 ***files, unsigned int *num)
/* ignore an error */
EFI_CALL((*dirh->close)(dirh));
/* in ascii order */
/* FIXME: u16 version of strcasecmp */
/*
* Capsule files are applied in case insensitive alphabetic order
*
* TODO: special handling of rightmost period
*/
qsort(tmp_files, count, sizeof(*tmp_files),
(int (*)(const void *, const void *))strcasecmp);
(int (*)(const void *, const void *))u16_strcasecmp);
*files = tmp_files;
*num = count;
ret = EFI_SUCCESS;