diff options
| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2019-04-29 08:08:43 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-06-07 10:52:30 -0400 |
| commit | 3bad256f5b5afc2ba6b3d30c162cb4b2b39318fd (patch) | |
| tree | d29e96f44d59d67d06db82d2c9ccfc1c0b91f538 /lib/vsprintf.c | |
| parent | dbbb1c43f26cb28b64df80b72fffbaf2801e8a30 (diff) | |
lib/vsprintf: allow printing upper case GUIDs
In the UEFI context GUIDs are expected to be rendered in upper case.
The patch uses the formerly unused bit 1 of the parameter str_format
of function uuid_bin_to_str() to indicate if we need upper or lower case
output.
Function uuid_string() in vsprint.c is adjusted to correctly set the bit
depending on the print format code.
%pUb: 01020304-0506-0708-090a-0b0c0d0e0f10
%pUB: 01020304-0506-0708-090A-0B0C0D0E0F10
%pUl: 04030201-0605-0807-090a-0b0c0d0e0f10
%pUL: 04030201-0605-0807-090A-0B0C0D0E0F10
Up to this point only a diagnostic message in mount_ubifs() using '%pUB' is
concerned by the change. Further patches are needed to adjust the UEFI
subsystem.
A unit test is provided inside the ut_print command.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'lib/vsprintf.c')
| -rw-r--r-- | lib/vsprintf.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 8bbbd48c54..425f2f53f7 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -383,29 +383,31 @@ static char *ip4_addr_string(char *buf, char *end, u8 *addr, int field_width, #ifdef CONFIG_LIB_UUID /* - * This works (roughly) the same way as linux's, but we currently always - * print lower-case (ie. we just keep %pUB and %pUL for compat with linux), - * mostly just because that is what uuid_bin_to_str() supports. + * This works (roughly) the same way as Linux's. * * %pUb: 01020304-0506-0708-090a-0b0c0d0e0f10 + * %pUB: 01020304-0506-0708-090A-0B0C0D0E0F10 * %pUl: 04030201-0605-0807-090a-0b0c0d0e0f10 + * %pUL: 04030201-0605-0807-090A-0B0C0D0E0F10 */ static char *uuid_string(char *buf, char *end, u8 *addr, int field_width, int precision, int flags, const char *fmt) { char uuid[UUID_STR_LEN + 1]; - int str_format = UUID_STR_FORMAT_STD; + int str_format; switch (*(++fmt)) { case 'L': + str_format = UUID_STR_FORMAT_GUID | UUID_STR_UPPER_CASE; + break; case 'l': str_format = UUID_STR_FORMAT_GUID; break; case 'B': - case 'b': - /* this is the default */ + str_format = UUID_STR_FORMAT_STD | UUID_STR_UPPER_CASE; break; default: + str_format = UUID_STR_FORMAT_STD; break; } |