dhcp: use memdup_suffix0() instead of strndup()
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@ -198,7 +198,7 @@ static int parse_options(const uint8_t options[], size_t buflen, uint8_t *overlo
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if (memchr(option, 0, len - 1))
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return -EINVAL;
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string = strndup((const char *) option, len);
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string = memdup_suffix0((const char *) option, len);
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if (!string)
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return -ENOMEM;
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