Fix UBSAN warnings about conversions and overflows.

[tinc] / src / compression.h

#ifndef TINC_COMPRESSION_H
#define TINC_COMPRESSION_H

typedef enum compression_level_t {
        COMPRESS_NONE = 0,

        COMPRESS_ZLIB_1 = 1,
        COMPRESS_ZLIB_2 = 2,
        COMPRESS_ZLIB_3 = 3,
        COMPRESS_ZLIB_4 = 4,
        COMPRESS_ZLIB_5 = 5,
        COMPRESS_ZLIB_6 = 6,
        COMPRESS_ZLIB_7 = 7,
        COMPRESS_ZLIB_8 = 8,
        COMPRESS_ZLIB_9 = 9,

        COMPRESS_LZO_LO = 10,
        COMPRESS_LZO_HI = 11,

        COMPRESS_LZ4 = 12,

        COMPRESS_GUARD = INT_MAX, /* ensure that sizeof(compression_level_t) == sizeof(int) */
} compression_level_t;

#endif