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49 lines
783 B
C
49 lines
783 B
C
#ifndef ENDIAN_IMPORTED
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#define ENDIAN_IMPORTED
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#include <stdint.h>
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#include <limits.h>
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#if CHAR_BIT != 8
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#error "unsupported char size"
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#endif
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union uint48_t {
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char c[6];
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uint64_t v:48;
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};
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int is_little_endian()
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{
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union {
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uint32_t i;
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char c[4];
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} u = {0x01020304};
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return u.c[0] == 4;
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}
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char *hton(char *in, long size, char *out) {
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if(is_little_endian()) {
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int i;
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for(i = 0; i < size; i++) {
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out[size-1-i] = in[i];
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}
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}
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else {
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out = in;
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}
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}
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char *hton2(void *in, long size, char *out) {
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if(is_little_endian()) {
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int i;
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for(i = 0; i < size; i++) {
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out[size-1-i] = *(uint64_t *)in >> 8*i;
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}
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}
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else {
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out = in;
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}
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}
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#endif |