1 // SPDX-License-Identifier: GPL-2.0 1
2 #include <linux/minmax.h>
3 #include <linux/string.h>
4 #include <asm/ebcdic.h>
5 #include <asm/ipl.h>
6
7 /* VM IPL PARM routines */
8 size_t ipl_block_get_ascii_vmparm(char *dest,
9 const struct
10 {
11 int i;
12 size_t len;
13 char has_lowercase = 0;
14
15 len = 0;
16 if ((ipb->ccw.vm_flags & IPL_PB0_CCW_V
17 (ipb->ccw.vm_parm_len > 0)) {
18
19 len = min_t(size_t, size - 1,
20 memcpy(dest, ipb->ccw.vm_parm,
21 /* If at least one character i
22 * case; otherwise we convert
23 */
24 for (i = 0; i < len; i++)
25 if ((dest[i] > 0x80 &&
26 (dest[i] > 0x90 &&
27 (dest[i] > 0xa1 &&
28 has_lowercase
29 break;
30 }
31 if (!has_lowercase)
32 EBC_TOLOWER(dest, len)
33 EBCASC(dest, len);
34 }
35 dest[len] = 0;
36
37 return len;
38 }
39
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.