static size_t iso_convert_name(char *dst, const char *src, int len)
{
char *p = dst;
char c;
if (len == 1) {
switch (*src) {
case 1:
*p++ = '.';
/* fall through */
case 0:
*p++ = '.';
goto done;
default:
/* nothing special */
break;
}
}
while (len-- && (c = *src++)) {
if (c == ';') /* Remove any filename version suffix */
break;
*p++ = iso_tolower(c);
}
/* Then remove any terminal dots */
while (p > dst+1 && p[-1] == '.')
p--;
done:
*p = '\0';
return p - dst;
}
/*
* Unlike strcmp, it does return 1 on match, or reutrn 0 if not match.
*/
static bool iso_compare_name(const char *de_name, size_t len,
const char *file_name)
{
char iso_file_name[256];
char *p = iso_file_name;
char c1, c2;
size_t i;
i = iso_convert_name(iso_file_name, de_name, len);
dprintf("Compare: \"%s\" to \"%s\" (len %zu)\n",
file_name, iso_file_name, i);
do {
c1 = *p++;
c2 = iso_tolower(*file_name++);
/* compare equal except for case? */
if (c1 != c2)
return false;
} while (c1);
return true;
}
