1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/*
* This program is a test for osmo_fr_sid_classify(). It reads a set of
* FRv1 codec frames in hex format (TS 101 318 RTP format represented in hex,
* each frame as its own hex line) and feeds each test frame to
* osmo_fr_sid_classify(). It then prints the output next to each input.
*
* Author: Mychaela N. Falconia <falcon@freecalypso.org>, 2024 - however,
* Mother Mychaela's contributions are NOT subject to copyright.
* No rights reserved, all rights relinquished.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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.
*/
#include <ctype.h>
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <osmocom/core/utils.h>
#include <osmocom/codec/codec.h>
static void process_record(const char *hex_str)
{
uint8_t frame_bytes[GSM_FR_BYTES];
enum osmo_gsm631_sid_class sidc;
osmo_hexparse(hex_str, frame_bytes, GSM_FR_BYTES);
sidc = osmo_fr_sid_classify(frame_bytes);
printf("%s ==> %d\n", hex_str, (int) sidc);
}
static void process_line(char *linebuf, const char *infname, int lineno)
{
char *cp = linebuf, *hex_str;
int ndig;
while (isspace(*cp))
cp++;
if (*cp == '\0' || *cp == '#')
return;
/* expect string of 66 hex digits */
hex_str = cp;
for (ndig = 0; ndig < GSM_FR_BYTES * 2; ndig++) {
if (!isxdigit(*cp))
goto inv;
cp++;
}
if (*cp) {
if (!isspace(*cp))
goto inv;
*cp++ = '\0';
}
/* must be end of non-comment line */
while (isspace(*cp))
cp++;
if (*cp != '\0' && *cp != '#')
goto inv;
process_record(hex_str);
return;
inv: fprintf(stderr, "%s line %d: invalid syntax\n", infname, lineno);
exit(1);
}
int main(int argc, char **argv)
{
const char *infname;
FILE *inf;
char linebuf[128];
int lineno;
if (argc != 2) {
fprintf(stderr, "usage: %s input-file\n", argv[0]);
exit(1);
}
infname = argv[1];
inf = fopen(infname, "r");
if (!inf) {
perror(infname);
exit(1);
}
for (lineno = 1; fgets(linebuf, sizeof(linebuf), inf); lineno++)
process_line(linebuf, infname, lineno);
fclose(inf);
exit(0);
}
|
