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klondi/header_validation.c

Created January 10, 2015 16:44
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This is code I wrote for an I2PD http parser which will never see the light, consider it public domain
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header_validation.c
inline bool isValidHeaderChar(uint8_t c) { return (c > 0x20 && c != 0x7f); }
inline bool isValidHeaderNameChar(uint8_t c) {
//This is a bool vector containing the valid characters
//!#$%&'*+-.^_`|~0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
static const uint8_t *valid = {0, 0, 0, 0, 250, 108, 255, 3, 254, 255, 255, 199,
255, 255, 255, 87, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
return valid[(x / 8) & 31] & (1 << (x & 7));
}
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klondi commented Jan 10, 2015

Keep in mind that you can use compres the vector if you remove values below 0x20 and over 0x7f

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