src/common.h


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#ifndef common_H
#define common_H 1

#define LOAD32_LE(SRC) load32_le(SRC)
static inline uint32_t
load32_le(const uint8_t src[4])
{
    uint32_t w = (uint32_t) src[0];
    w |= (uint32_t) src[1] << 8;
    w |= (uint32_t) src[2] << 16;
    w |= (uint32_t) src[3] << 24;
    return w;
}

#define STORE32_LE(DST, W) store32_le((DST), (W))
static inline void
store32_le(uint8_t dst[4], uint32_t w)
{
    dst[0] = (uint8_t) w;
    w >>= 8;
    dst[1] = (uint8_t) w;
    w >>= 8;
    dst[2] = (uint8_t) w;
    w >>= 8;
    dst[3] = (uint8_t) w;
}

static void
die(const char *msg)
{
    fprintf(stderr, "%s\n", msg);
    exit(1);
}

static void
diex(const char *msg)
{
    perror(msg);
    exit(1);
}

#endif