FreeCalypso > hg > fc-pcsc-tools

annotate libutil/gsm7_encode.c @ 157:f064dbcc5f41

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
libutil split from libcommon
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Feb 2021 20:19:58 +0000
parents libcommon/gsm7_encode.c@90e7020df08a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
17
b8d27c72747a GSM7 encoding function factored out of pb-update-imm
Mychaela Falconia <falcon@freecalypso.org>
parents: 13
diff changeset
2 * This module implements functions for parsing quoted string
b8d27c72747a GSM7 encoding function factored out of pb-update-imm
Mychaela Falconia <falcon@freecalypso.org>
parents: 13
diff changeset
3 * arguments intended for GSM7 string encoding, and actually
b8d27c72747a GSM7 encoding function factored out of pb-update-imm
Mychaela Falconia <falcon@freecalypso.org>
parents: 13
diff changeset
4 * encoding them into GSM7 binary strings.
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 */
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <sys/types.h>
17
b8d27c72747a GSM7 encoding function factored out of pb-update-imm
Mychaela Falconia <falcon@freecalypso.org>
parents: 13
diff changeset
8 #include <ctype.h>
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <stdio.h>
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10
12
8a34f5b7c812 gsm7_encode_table[] factored out into libcommon
Mychaela Falconia <falcon@freecalypso.org>
parents: 11
diff changeset
11 extern u_char gsm7_encode_table[256];
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12
17
b8d27c72747a GSM7 encoding function factored out of pb-update-imm
Mychaela Falconia <falcon@freecalypso.org>
parents: 13
diff changeset
13 qstring_arg_to_gsm7(arg, record, maxlen)
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 char *arg;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 u_char *record;
10
a76ec3e7da09 simtool/pbupdate.c: a little refactoring from fc-uicc-tool
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
diff changeset
16 unsigned maxlen;
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 {
10
a76ec3e7da09 simtool/pbupdate.c: a little refactoring from fc-uicc-tool
Mychaela Falconia <falcon@freecalypso.org>
parents: 1
diff changeset
18 unsigned acclen, nadd;
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 char *cp;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 int c;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 cp = arg;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 for (acclen = 0; *cp; ) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 c = *cp++;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 if (c == '\\') {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 if (*cp == '\0') {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 fprintf(stderr,
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 "error: dangling backslash escape\n");
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 c = *cp++;
20
90e7020df08a GSM7 string parsers accept new bypass-encoding escapes
Mychaela Falconia <falcon@freecalypso.org>
parents: 17
diff changeset
32 if (c >= '0' && c <= '7' && isxdigit(*cp)) {
90e7020df08a GSM7 string parsers accept new bypass-encoding escapes
Mychaela Falconia <falcon@freecalypso.org>
parents: 17
diff changeset
33 c = ((c - '0') << 4) | decode_hex_digit(*cp++);
90e7020df08a GSM7 string parsers accept new bypass-encoding escapes
Mychaela Falconia <falcon@freecalypso.org>
parents: 17
diff changeset
34 goto bypass_encoding;
90e7020df08a GSM7 string parsers accept new bypass-encoding escapes
Mychaela Falconia <falcon@freecalypso.org>
parents: 17
diff changeset
35 }
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 switch (c) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 case 'n':
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 c = '\n';
20
90e7020df08a GSM7 string parsers accept new bypass-encoding escapes
Mychaela Falconia <falcon@freecalypso.org>
parents: 17
diff changeset
39 goto bypass_encoding;
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 case 'r':
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 c = '\r';
20
90e7020df08a GSM7 string parsers accept new bypass-encoding escapes
Mychaela Falconia <falcon@freecalypso.org>
parents: 17
diff changeset
42 goto bypass_encoding;
90e7020df08a GSM7 string parsers accept new bypass-encoding escapes
Mychaela Falconia <falcon@freecalypso.org>
parents: 17
diff changeset
43 case 'e':
90e7020df08a GSM7 string parsers accept new bypass-encoding escapes
Mychaela Falconia <falcon@freecalypso.org>
parents: 17
diff changeset
44 c = 0x1B;
90e7020df08a GSM7 string parsers accept new bypass-encoding escapes
Mychaela Falconia <falcon@freecalypso.org>
parents: 17
diff changeset
45 goto bypass_encoding;
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 case '"':
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 case '\\':
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 break;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 default:
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 fprintf(stderr,
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 "error: non-understood backslash escape\n");
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 c = gsm7_encode_table[c];
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 if (c == 0xFF) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 fprintf(stderr,
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 "error: character in alpha tag string cannot be encoded in GSM7\n");
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 }
20
90e7020df08a GSM7 string parsers accept new bypass-encoding escapes
Mychaela Falconia <falcon@freecalypso.org>
parents: 17
diff changeset
61 bypass_encoding:
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 if (c & 0x80)
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 nadd = 2;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 else
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 nadd = 1;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 if (acclen + nadd > maxlen) {
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 fprintf(stderr,
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 "error: alpha tag string is longer than SIM limit\n");
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 return(-1);
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 }
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 if (c & 0x80)
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 record[acclen++] = 0x1B;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 record[acclen++] = c & 0x7F;
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 }
17
b8d27c72747a GSM7 encoding function factored out of pb-update-imm
Mychaela Falconia <falcon@freecalypso.org>
parents: 13
diff changeset
75 return(acclen);
1
2071b28cd0c7 simtool: first refactored version
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 }