misc/adsb-tools
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Split out hex

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This commit is contained in:
Ian Gulliver
2016-02-22 16:36:27 -08:00
parent 21536eee33
commit f36642b823
10 changed files with 92 additions and 83 deletions
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2
adsbus/Makefile
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@@ -5,7 +5,7 @@ LIBS ?= -ljansson
OBJ_NETWORK = receive.o send.o incoming.o outgoing.o
OBJ_PROTOCOL = airspy_adsb.o beast.o json.o raw.o stats.o
OBJ_UTIL = rand.o uuid.o wakeup.o opts.o common.o
OBJ_UTIL = rand.o uuid.o wakeup.o opts.o hex.o common.o
all: adsbus

5
adsbus/adsbus.c
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@@ -15,9 +15,10 @@
#include "json.h"
#include "stats.h"
#include "rand.h"
#include "opts.h"
#include "common.h"
#include "hex.h"
#include "opts.h"
#include "rand.h"
#include "wakeup.h"
static void print_usage(const char *name) {

4
adsbus/airspy_adsb.c
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@@ -3,8 +3,10 @@
#include <string.h>
#include "common.h"
#include "uuid.h"
#include "hex.h"
#include "receive.h"
#include "uuid.h"
#include "airspy_adsb.h"
#define SEND_MHZ 20

66
adsbus/common.c
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@@ -162,69 +162,3 @@ uint32_t rssi_scale_in(uint32_t value, uint32_t max) {
uint32_t rssi_scale_out(uint32_t value, uint32_t max) {
return value / (RSSI_MAX / max);
}
static uint8_t hex_table[256] = {0};
static char hex_upper_table[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', };
static char hex_lower_table[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', };
void hex_init() {
for (int i = '0'; i <= '9'; i++) {
hex_table[i] = i - '0';
}
for (int i = 'a'; i <= 'f'; i++) {
hex_table[i] = 10 + i - 'a';
}
for (int i = 'A'; i <= 'F'; i++) {
hex_table[i] = 10 + i - 'A';
}
}
void hex_to_bin(uint8_t *out, const char *in, size_t bytes) {
const uint8_t *in2 = (uint8_t *) in;
for (size_t i = 0, j = 0; i < bytes; i++, j += 2) {
out[i] = (hex_table[in2[j]] << 4) | hex_table[in2[j + 1]];
}
}
uint64_t hex_to_int(const char *in, size_t bytes) {
const uint8_t *in2 = (uint8_t *) in;
uint64_t ret = 0;
bytes *= 2;
for (size_t i = 0; i < bytes; i++) {
ret <<= 4;
ret |= hex_table[in2[i]];
}
return ret;
}
static void hex_from_bin(char *out, const uint8_t *in, size_t bytes, char table[]) {
for (size_t i = 0, j = 0; i < bytes; i++, j += 2) {
out[j] = table[in[i] >> 4];
out[j + 1] = table[in[i] & 0xf];
}
}
static void hex_from_int(char *out, uint64_t in, size_t bytes, char table[]) {
bytes *= 2;
for (int o = bytes - 1; o >= 0; o--) {
out[o] = table[in & 0xf];
in >>= 4;
}
}
void hex_from_bin_upper(char *out, const uint8_t *in, size_t bytes) {
hex_from_bin(out, in, bytes, hex_upper_table);
}
void hex_from_bin_lower(char *out, const uint8_t *in, size_t bytes) {
hex_from_bin(out, in, bytes, hex_lower_table);
}
void hex_from_int_upper(char *out, uint64_t in, size_t bytes) {
hex_from_int(out, in, bytes, hex_upper_table);
}
void hex_from_int_lower(char *out, uint64_t in, size_t bytes) {
hex_from_int(out, in, bytes, hex_lower_table);
}

11
adsbus/common.h
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@@ -76,14 +76,3 @@ uint64_t mlat_timestamp_scale_out(uint64_t, uint64_t, uint16_t);
uint32_t rssi_scale_in(uint32_t, uint32_t);
uint32_t rssi_scale_out(uint32_t, uint32_t);
//////// hex
void hex_init();
void hex_to_bin(uint8_t *, const char *, size_t);
uint64_t hex_to_int(const char *, size_t);
void hex_from_bin_upper(char *, const uint8_t *, size_t);
void hex_from_bin_lower(char *, const uint8_t *, size_t);
void hex_from_int_upper(char *, uint64_t, size_t);
void hex_from_int_lower(char *, uint64_t, size_t);

66
adsbus/hex.c Normal file
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@@ -0,0 +1,66 @@
#include "hex.h"
static uint8_t hex_table[256] = {0};
static char hex_upper_table[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', };
static char hex_lower_table[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', };
void hex_init() {
for (int i = '0'; i <= '9'; i++) {
hex_table[i] = i - '0';
}
for (int i = 'a'; i <= 'f'; i++) {
hex_table[i] = 10 + i - 'a';
}
for (int i = 'A'; i <= 'F'; i++) {
hex_table[i] = 10 + i - 'A';
}
}
void hex_to_bin(uint8_t *out, const char *in, size_t bytes) {
const uint8_t *in2 = (uint8_t *) in;
for (size_t i = 0, j = 0; i < bytes; i++, j += 2) {
out[i] = (hex_table[in2[j]] << 4) | hex_table[in2[j + 1]];
}
}
uint64_t hex_to_int(const char *in, size_t bytes) {
const uint8_t *in2 = (uint8_t *) in;
uint64_t ret = 0;
bytes *= 2;
for (size_t i = 0; i < bytes; i++) {
ret <<= 4;
ret |= hex_table[in2[i]];
}
return ret;
}
static void hex_from_bin(char *out, const uint8_t *in, size_t bytes, char table[]) {
for (size_t i = 0, j = 0; i < bytes; i++, j += 2) {
out[j] = table[in[i] >> 4];
out[j + 1] = table[in[i] & 0xf];
}
}
static void hex_from_int(char *out, uint64_t in, size_t bytes, char table[]) {
bytes *= 2;
for (int o = bytes - 1; o >= 0; o--) {
out[o] = table[in & 0xf];
in >>= 4;
}
}
void hex_from_bin_upper(char *out, const uint8_t *in, size_t bytes) {
hex_from_bin(out, in, bytes, hex_upper_table);
}
void hex_from_bin_lower(char *out, const uint8_t *in, size_t bytes) {
hex_from_bin(out, in, bytes, hex_lower_table);
}
void hex_from_int_upper(char *out, uint64_t in, size_t bytes) {
hex_from_int(out, in, bytes, hex_upper_table);
}
void hex_from_int_lower(char *out, uint64_t in, size_t bytes) {
hex_from_int(out, in, bytes, hex_lower_table);
}

12
adsbus/hex.h Normal file
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@@ -0,0 +1,12 @@
#pragma once
#include <stdint.h>
#include <stddef.h>
void hex_init();
void hex_to_bin(uint8_t *, const char *, size_t);
uint64_t hex_to_int(const char *, size_t);
void hex_from_bin_upper(char *, const uint8_t *, size_t);
void hex_from_bin_lower(char *, const uint8_t *, size_t);
void hex_from_int_upper(char *, uint64_t, size_t);
void hex_from_int_lower(char *, uint64_t, size_t);

4
adsbus/json.c
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@@ -3,10 +3,12 @@
#include <string.h>
#include <jansson.h>
#include "hex.h"
#include "rand.h"
#include "receive.h"
#include "send.h"
#include "rand.h"
#include "uuid.h"
#include "json.h"
static void json_serialize_to_buf(json_t *obj, struct buf *buf) {

2
adsbus/raw.c
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@@ -3,7 +3,9 @@
#include <string.h>
#include "common.h"
#include "hex.h"
#include "uuid.h"
#include "raw.h"
struct __attribute__((packed)) raw_mode_s_short_overlay {

3
adsbus/uuid.c
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@@ -1,7 +1,8 @@
#include <stdint.h>
#include "rand.h"
#include "common.h"
#include "hex.h"
#include "rand.h"
#include "uuid.h"