| 1 | #include <linux/ucs2_string.h>
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| 2 | #include <linux/module.h>
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| 3 |
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| 4 |
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| 5 | unsigned long
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| 6 | ucs2_strnlen(const ucs2_char_t *s, size_t maxlength)
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| 7 | {
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| 8 | unsigned long length = 0;
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| 9 |
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| 10 | while (*s++ != 0 && length < maxlength)
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| 11 | length++;
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| 12 | return length;
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| 13 | }
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| 14 | EXPORT_SYMBOL(ucs2_strnlen);
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| 15 |
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| 16 | unsigned long
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| 17 | ucs2_strlen(const ucs2_char_t *s)
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| 18 | {
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| 19 | return ucs2_strnlen(s, ~0UL);
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| 20 | }
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| 21 | EXPORT_SYMBOL(ucs2_strlen);
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| 22 |
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| 23 | |
| 24 | * Return the number of bytes is the length of this string
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| 25 | * Note: this is NOT the same as the number of unicode characters
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| 26 |
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| 27 | unsigned long
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| 28 | ucs2_strsize(const ucs2_char_t *data, unsigned long maxlength)
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| 29 | {
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| 30 | return ucs2_strnlen(data, maxlength/sizeof(ucs2_char_t)) * sizeof(ucs2_char_t);
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| 31 | }
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| 32 | EXPORT_SYMBOL(ucs2_strsize);
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| 33 |
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| 34 | int
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| 35 | ucs2_strncmp(const ucs2_char_t *a, const ucs2_char_t *b, size_t len)
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| 36 | {
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| 37 | while (1) {
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| 38 | if (len == 0)
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| 39 | return 0;
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| 40 | if (*a < *b)
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| 41 | return -1;
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| 42 | if (*a > *b)
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| 43 | return 1;
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| 44 | if (*a == 0)
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| 45 | return 0;
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| 46 | a++;
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| 47 | b++;
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| 48 | len--;
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| 49 | }
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| 50 | }
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| 51 | EXPORT_SYMBOL(ucs2_strncmp);
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