mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
916 B
36 lines
916 B
// SPDX-License-Identifier: GPL-2.0 |
|
#include <asm/ebcdic.h> |
|
#include <asm/ipl.h> |
|
|
|
/* VM IPL PARM routines */ |
|
size_t ipl_block_get_ascii_vmparm(char *dest, size_t size, |
|
const struct ipl_parameter_block *ipb) |
|
{ |
|
int i; |
|
size_t len; |
|
char has_lowercase = 0; |
|
|
|
len = 0; |
|
if ((ipb->ccw.vm_flags & IPL_PB0_CCW_VM_FLAG_VP) && |
|
(ipb->ccw.vm_parm_len > 0)) { |
|
|
|
len = min_t(size_t, size - 1, ipb->ccw.vm_parm_len); |
|
memcpy(dest, ipb->ccw.vm_parm, len); |
|
/* If at least one character is lowercase, we assume mixed |
|
* case; otherwise we convert everything to lowercase. |
|
*/ |
|
for (i = 0; i < len; i++) |
|
if ((dest[i] > 0x80 && dest[i] < 0x8a) || /* a-i */ |
|
(dest[i] > 0x90 && dest[i] < 0x9a) || /* j-r */ |
|
(dest[i] > 0xa1 && dest[i] < 0xaa)) { /* s-z */ |
|
has_lowercase = 1; |
|
break; |
|
} |
|
if (!has_lowercase) |
|
EBC_TOLOWER(dest, len); |
|
EBCASC(dest, len); |
|
} |
|
dest[len] = 0; |
|
|
|
return len; |
|
}
|
|
|