138 lines
3.2 KiB
C
138 lines
3.2 KiB
C
/*
|
|
* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
|
|
*
|
|
* This file is part of Open5GS.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "core-config-private.h"
|
|
|
|
#if HAVE_CTYPE_H
|
|
#include <ctype.h>
|
|
#endif
|
|
|
|
#include "ogs-core.h"
|
|
|
|
void *ogs_ascii_to_hex(char *in, int in_len, void *out, int out_len)
|
|
{
|
|
int i = 0, j = 0, k = 0, hex;
|
|
uint8_t *out_p = out;
|
|
|
|
while(i < in_len && j < out_len) {
|
|
if (!isspace(in[i])) {
|
|
hex = isdigit(in[i]) ? in[i] - '0' :
|
|
islower(in[i]) ? in[i] - 'a' + 10 : in[i] - 'A' + 10;
|
|
if ((k & 0x1) == 0) {
|
|
out_p[j] = (hex << 4);
|
|
} else {
|
|
out_p[j] |= hex;
|
|
j++;
|
|
}
|
|
k++;
|
|
}
|
|
i++;
|
|
}
|
|
|
|
return out;
|
|
}
|
|
|
|
void *ogs_hex_to_ascii(void *in, int in_len, void *out, int out_len)
|
|
{
|
|
char *p;
|
|
int i = 0, l, off = 0;
|
|
|
|
p = out;
|
|
p[0] = 0;
|
|
|
|
l = (in_len - off) > out_len ? out_len : in_len - off;
|
|
for (i = 0; i < l; i++) {
|
|
p += sprintf(p, "%02X", ((char*)in)[off+i] & 0xff);
|
|
if ((i & 0x3) == 3 && (i != (l-1))) p += sprintf(p, " ");
|
|
}
|
|
|
|
return out;
|
|
}
|
|
|
|
void *ogs_uint64_to_buffer(uint64_t num, int size, void *buffer)
|
|
{
|
|
int i;
|
|
uint8_t *buffer_p = buffer;
|
|
for (i = 0; i < size; i++)
|
|
buffer_p[i] = (num >> ((size-1-i) * 8)) & 0xff;
|
|
|
|
return buffer;
|
|
}
|
|
|
|
uint64_t ogs_buffer_to_uint64(void *buffer, int size)
|
|
{
|
|
uint64_t num = 0;
|
|
uint8_t *buffer_p = buffer;
|
|
int i;
|
|
|
|
for (i = 0; i < size; i++) {
|
|
num |= (((uint64_t)buffer_p[i]) << ((size-1-i) * 8));
|
|
}
|
|
|
|
return num;
|
|
}
|
|
|
|
void *ogs_bcd_to_buffer(const char *in, void *out, int *out_len)
|
|
{
|
|
int i = 0;
|
|
uint8_t *out_p = out;
|
|
int in_len = strlen(in);
|
|
|
|
for (i = 0; i < in_len; i++) {
|
|
if (i & 0x01)
|
|
out_p[i>>1] = out_p[i>>1] | (((in[i] - 0x30) << 4) & 0xF0);
|
|
else
|
|
out_p[i>>1] = (in[i] - 0x30) & 0x0F;
|
|
}
|
|
|
|
*out_len = (in_len + 1) / 2;
|
|
if (in_len & 0x01) {
|
|
out_p[(*out_len)-1] |= 0xF0;
|
|
}
|
|
|
|
return out;
|
|
}
|
|
|
|
void *ogs_buffer_to_bcd(uint8_t *in, int in_len, void *out)
|
|
{
|
|
int i = 0;
|
|
uint8_t *out_p = out;
|
|
|
|
for (i = 0; i < in_len-1; i++) {
|
|
out_p[i*2] = 0x30 + (in[i] & 0x0F);
|
|
out_p[i*2+1] = 0x30 + ((in[i] & 0xF0) >> 4);
|
|
}
|
|
|
|
if ((in[i] & 0xF0) == 0xF0) {
|
|
out_p[i*2] = 0x30 + (in[i] & 0x0F);
|
|
out_p[i*2+1] = 0;
|
|
} else {
|
|
out_p[i*2] = 0x30 + (in[i] & 0x0F);
|
|
out_p[i*2+1] = 0x30 + ((in[i] & 0xF0) >> 4);
|
|
out_p[i*2+2] = 0;
|
|
}
|
|
|
|
return out;
|
|
}
|
|
|
|
char ogs_from_hex(char ch)
|
|
{
|
|
return isdigit(ch) ? ch - '0' : tolower(ch) - 'a' + 10;
|
|
}
|