EXPORT int string_compare_encoded (const char * ap, const char * bp)
{
if (ap == NULL)
return (bp == NULL) ? 0 : -1;
if (bp == NULL)
return 1;
unsigned char a = * ap ++, b = * bp ++;
for (; a || b; a = * ap ++, b = * bp ++)
{
if (a == '%' && ap[0] && ap[1])
{
a = (FROM_HEX (ap[0]) << 4) | FROM_HEX (ap[1]);
ap += 2;
}
if (b == '%' && bp[0] && bp[1])
{
b = (FROM_HEX (bp[0]) << 4) | FROM_HEX (bp[1]);
bp += 2;
}
if (a > '9' || b > '9' || a < '0' || b < '0')
{
if (a <= 'Z' && a >= 'A')
a += 'a' - 'A';
if (b <= 'Z' && b >= 'A')
b += 'a' - 'A';
if (a > b)
return 1;
if (a < b)
return -1;
}
else
{
int x = a - '0';
for (; (a = * ap) <= '9' && a >= '0'; ap ++)
x = 10 * x + (a - '0');
int y = b - '0';
for (; (b = * bp) >= '0' && b <= '9'; bp ++)
y = 10 * y + (b - '0');
if (x > y)
return 1;
if (x < y)
return -1;
}
}
return 0;
}
static int get_cpiohdr(unsigned char *buf, long *size, long *namesize, long *chksum)
{
struct new_ascii_header *cpiohdr;
cpiohdr = (struct new_ascii_header *)buf;
if (strncmp(cpiohdr->c_magic, "070702", 6) != 0) {
ERROR("CPIO Format not recognized: magic not found\n");
return -EINVAL;
}
*size = FROM_HEX(cpiohdr->c_filesize);
*namesize = FROM_HEX(cpiohdr->c_namesize);
*chksum = FROM_HEX(cpiohdr->c_chksum);
return 0;
}
EXPORT void str_decode_percent (const char * str, int len, char * out)
{
if (len < 0)
len = INT_MAX;
while (len --)
{
char c = * str ++;
if (! c)
break;
if (c == '%' && len >= 2 && str[0] && str[1])
{
c = (FROM_HEX (str[0]) << 4) | FROM_HEX (str[1]);
str += 2;
len -= 2;
}
* out ++ = c;
}
* out = 0;
}