/usr/include/libr/r_endian.h is in libradare2-dev 2.3.0+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#define R_ENDIAN_H
#ifdef __cplusplus
extern "C" {
#endif
/* Endian agnostic functions working on single byte. */
static inline ut8 r_read_ble8(const void *src) {
if (!src) {
return UT8_MAX;
}
return *(ut8 *)src;
}
static inline ut8 r_read_at_ble8(const void *src, size_t offset) {
return r_read_ble8 (((const ut8*)src) + offset);
}
static inline void r_write_ble8(void *dest, ut8 val) {
*(ut8 *)dest = val;
}
static inline void r_write_at_ble8(void *dest, ut8 val, size_t offset) {
ut8 *d = (ut8*)dest + offset;
r_write_ble8 (d, val);
}
/* Big Endian functions. */
static inline ut8 r_read_be8(const void *src) {
return r_read_ble8 (src);
}
static inline ut8 r_read_at_be8(const void *src, size_t offset) {
return r_read_at_ble8 (src, offset);
}
static inline void r_write_be8(void *dest, ut8 val) {
r_write_ble8 (dest, val);
}
static inline void r_write_at_be8(void *dest, ut8 val, size_t offset) {
r_write_at_ble8 (dest, val, offset);
}
static inline ut16 r_read_be16(const void *src) {
const ut8 *s = (const ut8*)src;
return (((ut16)s[0]) << 8) | (((ut16)s[1]) << 0);
}
static inline ut16 r_read_at_be16(const void *src, size_t offset) {
const ut8 *s = (const ut8*)src + offset;
return r_read_be16 (s);
}
static inline void r_write_be16(void *dest, ut16 val) {
r_write_be8 (dest, val >> 8);
r_write_at_be8 (dest, val >> 0, sizeof (ut8));
}
static inline void r_write_at_be16(void *dest, ut16 val, size_t offset) {
ut8 *d = (ut8*)dest + offset;
r_write_be16 (d, val);
}
static inline ut32 r_read_be32(const void *src) {
const ut8 *s = (const ut8*)src;
return (((ut32)s[0]) << 24) | (((ut32)s[1]) << 16) |
(((ut32)s[2]) << 8) | (((ut32)s[3]) << 0);
}
static inline ut32 r_read_at_be32(const void *src, size_t offset) {
const ut8 *s = (const ut8*)src + offset;
return r_read_be32 (s);
}
static inline void r_write_be32(void *dest, ut32 val) {
r_write_be16 (dest, val >> 16);
r_write_at_be16 (dest, val >> 0, sizeof (ut16));
}
static inline void r_write_be24(void *_dest, ut32 val) {
ut8 *dest = (ut8*)_dest;
r_write_be8 (dest++, val >> 16);
r_write_be8 (dest++, val >> 8);
r_write_be8 (dest, val >> 0);
}
static inline void r_write_at_be32(void *dest, ut32 val, size_t offset) {
ut8 *d = (ut8*)dest + offset;
r_write_be32 (d, val);
}
static inline ut64 r_read_be64(const void *src) {
ut64 val = ((ut64)(r_read_be32 (src))) << 32;
val |= r_read_at_be32 (src, sizeof (ut32));
return val;
}
static inline ut64 r_read_at_be64(const void *src, size_t offset) {
const ut8 *s = (const ut8*)src + offset;
return r_read_be64 (s);
}
static inline void r_write_be64(void *dest, ut64 val) {
r_write_be32 (dest, val >> 32);
r_write_at_be32 (dest, val >> 0, sizeof (ut32));
}
static inline void r_write_at_be64(void *dest, ut64 val, size_t offset) {
ut8 *d = (ut8*)dest + offset;
r_write_be64 (d, val);
}
/* Little Endian functions. */
static inline ut8 r_read_le8(const void *src) {
if (!src) {
return UT8_MAX;
}
return r_read_ble8 (src);
}
static inline ut8 r_read_at_le8(const void *src, size_t offset) {
return r_read_at_ble8 (src, offset);
}
static inline void r_write_le8(void *dest, ut8 val) {
r_write_ble8 (dest, val);
}
static inline void r_write_at_le8(void *dest, ut8 val, size_t offset) {
r_write_at_ble8 (dest, val, offset);
}
static inline ut16 r_read_le16(const void *src) {
if (!src) {
return UT16_MAX;
}
const ut8 *s = (const ut8*)src;
return (((ut16)s[1]) << 8) | (((ut16)s[0]) << 0);
}
static inline ut16 r_read_at_le16(const void *src, size_t offset) {
if (!src) {
return UT16_MAX;
}
const ut8 *s = (const ut8*)src + offset;
return r_read_le16 (s);
}
static inline void r_write_le16(void *dest, ut16 val) {
r_write_le8 (dest, val >> 0);
r_write_at_le8 (dest, val >> 8, sizeof (ut8));
}
static inline void r_write_at_le16(void *dest, ut16 val, size_t offset) {
ut8 *d = (ut8 *)dest + offset;
r_write_le16 (d, val);
}
static inline void r_write_le24(void *_dest, ut32 val) {
ut8* dest = (ut8*)_dest;
r_write_le8 (dest++, val >> 0);
r_write_le8 (dest++, val >> 8);
r_write_le8 (dest, val >> 16);
}
static inline ut32 r_read_le32(const void *src) {
if (!src) {
return UT32_MAX;
}
const ut8 *s = (const ut8*)src;
return (((ut32)s[3]) << 24) | (((ut32)s[2]) << 16) |
(((ut32)s[1]) << 8) | (((ut32)s[0]) << 0);
}
static inline ut32 r_read_at_le32(const void *src, size_t offset) {
if (!src) {
return UT32_MAX;
}
const ut8 *s = (const ut8*)src + offset;
return r_read_le32 (s);
}
static inline void r_write_le32(void *dest, ut32 val) {
r_write_le16 (dest, val >> 0);
r_write_at_le16 (dest, val >> 16, sizeof (ut16));
}
static inline void r_write_at_le32(void *dest, ut32 val, size_t offset) {
ut8 *d = ((ut8*)dest) + offset;
r_write_le32 (d, val);
}
static inline ut64 r_read_le64(const void *src) {
ut64 val = ((ut64)(r_read_at_le32 (src, sizeof (ut32)))) << 32;
val |= r_read_le32 (src);
return val;
}
static inline ut64 r_read_at_le64(const void *src, size_t offset) {
const ut8 *s = ((const ut8*)src) + offset;
return r_read_le64 (s);
}
static inline void r_write_le64(void *dest, ut64 val) {
r_write_le32 (dest, val >> 0);
r_write_at_le32 (dest, val >> 32, sizeof (ut32));
}
static inline void r_write_at_le64(void *dest, ut64 val, size_t offset) {
ut8 *d = (ut8*)dest + offset;
r_write_le64 (d, val);
}
/* Middle Endian functions. */
static inline ut8 r_read_me8(const void *src) {
return src ? r_read_ble8 (src): UT8_MAX;
}
static inline ut8 r_read_at_me8(const void *src, size_t offset) {
return r_read_at_ble8 (src, offset);
}
static inline void r_write_me8(void *dest, ut8 val) {
r_write_ble8 (dest, val);
}
static inline void r_write_at_me8(void *dest, ut8 val, size_t offset) {
r_write_at_ble8 (dest, val, offset);
}
static inline ut16 r_read_me16(const void *src) {
if (!src) {
return UT16_MAX;
}
const ut8 *s = (const ut8*)src;
return (((ut16)s[0]) << 8) | (((ut16)s[1]) << 0);
}
static inline ut16 r_read_at_me16(const void *src, size_t offset) {
if (!src) {
return UT16_MAX;
}
const ut8 *s = (const ut8*)src + offset;
return r_read_me16 (s);
}
static inline void r_write_me16(void *dest, ut16 val) {
r_write_me8 (dest, val >> 8);
r_write_at_me8 (dest, val >> 0, sizeof (ut8));
}
static inline void r_write_at_me16(void *dest, ut16 val, size_t offset) {
ut8 *d = (ut8 *)dest + offset;
r_write_me16 (d, val);
}
static inline ut32 r_read_me32(const void *src) {
if (!src) {
return UT32_MAX;
}
const ut8 *s = (const ut8*)src;
return (((ut32)s[2]) << 24) | (((ut32)s[1]) << 16) |
(((ut32)s[0]) << 8) | (((ut32)s[1]) << 0);
}
static inline ut32 r_read_at_me32(const void *src, size_t offset) {
if (!src) {
return UT32_MAX;
}
const ut8 *s = (const ut8*)src + offset;
return r_read_me32 (s);
}
static inline void r_write_me32(void *dest, ut32 val) {
r_write_me16 (dest, val >> 0);
r_write_at_me16 (dest, val >> 16, sizeof (ut16));
}
static inline void r_write_at_me32(void *dest, ut32 val, size_t offset) {
ut8 *d = ((ut8*)dest) + offset;
r_write_me32 (d, val);
}
static inline ut64 r_read_me64(const void *src) {
ut64 val = ((ut64)(r_read_at_me32 (src, sizeof (ut32)))) << 32;
val |= r_read_me32 (src);
return val;
}
static inline ut64 r_read_at_me64(const void *src, size_t offset) {
const ut8 *s = ((const ut8*)src) + offset;
return r_read_me64 (s);
}
static inline void r_write_me64(void *dest, ut64 val) {
r_write_me32 (dest, val >> 0);
r_write_at_me32 (dest, val >> 32, sizeof (ut32));
}
static inline void r_write_at_me64(void *dest, ut64 val, size_t offset) {
ut8 *d = (ut8*)dest + offset;
r_write_me64 (d, val);
}
/* Helper functions */
static inline ut16 r_read_ble16(const void *src, bool big_endian) {
return big_endian? r_read_be16 (src): r_read_le16 (src);
}
static inline ut32 r_read_ble32(const void *src, bool big_endian) {
return big_endian? r_read_be32 (src): r_read_le32 (src);
}
static inline ut64 r_read_ble64(const void *src, bool big_endian) {
return big_endian? r_read_be64 (src): r_read_le64 (src);
}
static inline ut64 r_read_ble(const void *src, bool big_endian, int size) {
switch (size) {
case 8:
return (ut64) ((ut8*)src)[0];
case 16:
return r_read_ble16 (src, big_endian);
case 32:
return r_read_ble32 (src, big_endian);
case 64:
return r_read_ble64 (src, big_endian);
default:
return UT64_MAX;
}
}
static inline void r_write_ble16(void *dest, ut16 val, bool big_endian) {
big_endian? r_write_be16 (dest, val): r_write_le16 (dest, val);
}
static inline void r_write_ble24(void *dest, ut32 val, bool big_endian) {
big_endian? r_write_be24 (dest, val): r_write_le24 (dest, val);
}
static inline void r_write_ble32(void *dest, ut32 val, bool big_endian) {
big_endian? r_write_be32 (dest, val): r_write_le32 (dest, val);
}
static inline void r_write_ble64(void *dest, ut64 val, bool big_endian) {
big_endian? r_write_be64 (dest, val): r_write_le64 (dest, val);
}
static inline void r_write_ble(void *dst, ut64 val, bool big_endian, int size) {
switch (size) {
case 8:
((ut8*)dst)[0] = (ut8) val;
break;
case 16:
r_write_ble16 (dst, (ut16) val, big_endian);
break;
case 24:
r_write_ble24 (dst, (ut32) val, big_endian);
break;
case 32:
r_write_ble32 (dst, (ut32) val, big_endian);
break;
case 64:
r_write_ble64 (dst, val, big_endian);
break;
default:
break;
}
}
// TODO: find better names and write vapis
#define ut8p_b(x) ((x)[0])
#define ut8p_bw(x) ((x)[0]|((x)[1]<<8))
#define ut8p_bd(x) ((x)[0]|((x)[1]<<8)|((x)[2]<<16)|((x)[3]<<24))
#define ut8p_bq(x) ((x)[0]|((x)[1]<<8)|((x)[2]<<16)|((x)[3]<<24)|((x)[4]<<32)|((x)[5]<<40)|((x)[6]<<48)|((x)[7]<<56))
#define ut8p_lw(x) ((x)[1]|((x)[0]<<8))
#define ut8p_ld(x) ((x)[3]|((x)[2]<<8)|((x)[1]<<16)|((x)[0]<<24))
#define ut8p_lq(x) ((x)[7]|((x)[6]<<8)|((x)[5]<<16)|((x)[4]<<24)|((x)[3]<<32)|((x)[2]<<40)|((x)[1]<<48)|((x)[0]<<56))
/*swap*/
static inline ut16 r_swap_ut16(ut16 val) {
return (val << 8) | (val >> 8 );
}
static inline st16 r_swap_st16(st16 val) {
val = ((val << 8) & 0xFF00FF00 ) | ((val >> 8) & 0xFF00FF );
return (val << 16) | (val >> 16);
}
static inline ut32 r_swap_ut32(ut32 val) {
val = ((val << 8) & 0xFF00FF00 ) | ((val >> 8) & 0xFF00FF );
return (val << 16) | (val >> 16);
}
static inline st32 r_swap_st32(st32 val) {
val = ((val << 8) & 0xFF00FF00) | ((val >> 8) & 0xFF00FF );
return (val << 16) | ((val >> 16) & 0xFFFF);
}
static inline ut64 r_swap_ut64(ut64 val) {
val = ((val << 8) & 0xFF00FF00FF00FF00ULL ) | ((val >> 8) & 0x00FF00FF00FF00FFULL );
val = ((val << 16) & 0xFFFF0000FFFF0000ULL ) | ((val >> 16) & 0x0000FFFF0000FFFFULL );
return (val << 32) | (val >> 32);
}
static inline st64 r_swap_st64(st64 val) {
val = ((val << 8) & 0xFF00FF00FF00FF00ULL ) | ((val >> 8) & 0x00FF00FF00FF00FFULL );
val = ((val << 16) & 0xFFFF0000FFFF0000ULL ) | ((val >> 16) & 0x0000FFFF0000FFFFULL );
return (val << 32) | ((val >> 32) & 0xFFFFFFFFULL);
}
/* Some "secured" functions, to do basic operation (mul, sub, add...) on integers */
static inline int UT64_ADD(ut64 *r, ut64 a, ut64 b) {
if (UT64_MAX - a < b) {
return 0;
}
if (r) {
*r = a + b;
}
return 1;
}
static inline int UT64_MUL(ut64 *r, ut64 a, ut64 b) {
if (a && UT64_MAX / a < b) {
return 0;
}
if (r) {
*r = a * b;
}
return 1;
}
static inline int UT64_SUB(ut64 *r, ut64 a, ut64 b) {
if (b > a) {
return 0;
}
if (r) {
*r = a - b;
}
return 1;
}
static inline int UT32_ADD(ut32 *r, ut32 a, ut32 b) {
if (UT32_MAX - a < b) {
return 0;
}
if (r) {
*r = a + b;
}
return 1;
}
static inline int UT32_MUL(ut32 *r, ut32 a, ut32 b) {
if (a && UT32_MAX / a < b) {
return 0;
}
if (r) {
*r = a * b;
}
return 1;
}
static inline int UT32_SUB(ut32 *r, ut32 a, ut32 b) {
if (b > a) {
return 0;
}
if (r) {
*r = a - b;
}
return 1;
}
static inline int UT16_ADD(ut16 *r, ut16 a, ut16 b) {
if (UT16_MAX - a < b) {
return 0;
}
if (r) {
*r = a + b;
}
return 1;
}
static inline int UT16_MUL(ut16 *r, ut16 a, ut16 b) {
if (a && UT16_MAX / a < b) {
return 0;
}
if (r) {
*r = a * b;
}
return 1;
}
static inline int UT16_SUB(ut16 *r, ut16 a, ut16 b) {
if (b > a) {
return 0;
}
if (r) {
*r = a - b;
}
return 1;
}
static inline int UT8_ADD(ut8 *r, ut8 a, ut8 b) {
if (UT8_MAX - a < b) {
return 0;
}
if (r) {
*r = a + b;
}
return 1;
}
static inline int UT8_MUL(ut8 *r, ut8 a, ut8 b) {
if (a && UT8_MAX / a < b) {
return 0;
}
if (r) {
*r = a * b;
}
return 1;
}
static inline int UT8_SUB(ut8 *r, ut8 a, ut8 b) {
if (b > a) {
return 0;
}
if (r) {
*r = a - b;
}
return 1;
}
#ifdef __cplusplus
}
#endif
#endif
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