mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 05:04:00 +08:00
a19189e553
This patch applies a suggestion by Mikulas Patocka asking to increase all pr_warn without commented ones to pr_err Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
/*
|
|
* linux/fs/hpfs/name.c
|
|
*
|
|
* Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999
|
|
*
|
|
* operations with filenames
|
|
*/
|
|
|
|
#include "hpfs_fn.h"
|
|
|
|
static inline int not_allowed_char(unsigned char c)
|
|
{
|
|
return c<' ' || c=='"' || c=='*' || c=='/' || c==':' || c=='<' ||
|
|
c=='>' || c=='?' || c=='\\' || c=='|';
|
|
}
|
|
|
|
static inline int no_dos_char(unsigned char c)
|
|
{ /* Characters that are allowed in HPFS but not in DOS */
|
|
return c=='+' || c==',' || c==';' || c=='=' || c=='[' || c==']';
|
|
}
|
|
|
|
static inline unsigned char upcase(unsigned char *dir, unsigned char a)
|
|
{
|
|
if (a<128 || a==255) return a>='a' && a<='z' ? a - 0x20 : a;
|
|
if (!dir) return a;
|
|
return dir[a-128];
|
|
}
|
|
|
|
unsigned char hpfs_upcase(unsigned char *dir, unsigned char a)
|
|
{
|
|
return upcase(dir, a);
|
|
}
|
|
|
|
static inline unsigned char locase(unsigned char *dir, unsigned char a)
|
|
{
|
|
if (a<128 || a==255) return a>='A' && a<='Z' ? a + 0x20 : a;
|
|
if (!dir) return a;
|
|
return dir[a];
|
|
}
|
|
|
|
int hpfs_chk_name(const unsigned char *name, unsigned *len)
|
|
{
|
|
int i;
|
|
if (*len > 254) return -ENAMETOOLONG;
|
|
hpfs_adjust_length(name, len);
|
|
if (!*len) return -EINVAL;
|
|
for (i = 0; i < *len; i++) if (not_allowed_char(name[i])) return -EINVAL;
|
|
if (*len == 1) if (name[0] == '.') return -EINVAL;
|
|
if (*len == 2) if (name[0] == '.' && name[1] == '.') return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
unsigned char *hpfs_translate_name(struct super_block *s, unsigned char *from,
|
|
unsigned len, int lc, int lng)
|
|
{
|
|
unsigned char *to;
|
|
int i;
|
|
if (hpfs_sb(s)->sb_chk >= 2) if (hpfs_is_name_long(from, len) != lng) {
|
|
pr_err("Long name flag mismatch - name ");
|
|
for (i = 0; i < len; i++)
|
|
pr_cont("%c", from[i]);
|
|
pr_cont(" misidentified as %s.\n", lng ? "short" : "long");
|
|
pr_err("It's nothing serious. It could happen because of bug in OS/2.\nSet checks=normal to disable this message.\n");
|
|
}
|
|
if (!lc) return from;
|
|
if (!(to = kmalloc(len, GFP_KERNEL))) {
|
|
pr_err("can't allocate memory for name conversion buffer\n");
|
|
return from;
|
|
}
|
|
for (i = 0; i < len; i++) to[i] = locase(hpfs_sb(s)->sb_cp_table,from[i]);
|
|
return to;
|
|
}
|
|
|
|
int hpfs_compare_names(struct super_block *s,
|
|
const unsigned char *n1, unsigned l1,
|
|
const unsigned char *n2, unsigned l2, int last)
|
|
{
|
|
unsigned l = l1 < l2 ? l1 : l2;
|
|
unsigned i;
|
|
if (last) return -1;
|
|
for (i = 0; i < l; i++) {
|
|
unsigned char c1 = upcase(hpfs_sb(s)->sb_cp_table,n1[i]);
|
|
unsigned char c2 = upcase(hpfs_sb(s)->sb_cp_table,n2[i]);
|
|
if (c1 < c2) return -1;
|
|
if (c1 > c2) return 1;
|
|
}
|
|
if (l1 < l2) return -1;
|
|
if (l1 > l2) return 1;
|
|
return 0;
|
|
}
|
|
|
|
int hpfs_is_name_long(const unsigned char *name, unsigned len)
|
|
{
|
|
int i,j;
|
|
for (i = 0; i < len && name[i] != '.'; i++)
|
|
if (no_dos_char(name[i])) return 1;
|
|
if (!i || i > 8) return 1;
|
|
if (i == len) return 0;
|
|
for (j = i + 1; j < len; j++)
|
|
if (name[j] == '.' || no_dos_char(name[i])) return 1;
|
|
return j - i > 4;
|
|
}
|
|
|
|
/* OS/2 clears dots and spaces at the end of file name, so we have to */
|
|
|
|
void hpfs_adjust_length(const unsigned char *name, unsigned *len)
|
|
{
|
|
if (!*len) return;
|
|
if (*len == 1 && name[0] == '.') return;
|
|
if (*len == 2 && name[0] == '.' && name[1] == '.') return;
|
|
while (*len && (name[*len - 1] == '.' || name[*len - 1] == ' '))
|
|
(*len)--;
|
|
}
|