637 lines
16 KiB
C
637 lines
16 KiB
C
/* @(#)cd_text.c 1.11 10/12/19 Copyright 2000-2001 Heiko Eissfeldt, Copyright 2006-2010 J. Schilling */
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/*
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* This is an include file!
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*/
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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/* *************** CD-Text special treatment ******************************* */
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typedef struct {
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unsigned char headerfield[4];
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unsigned char textdatafield[12];
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unsigned char crcfield[2];
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} cdtextpackdata;
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static unsigned short crctab[1<<8] = { /* as calculated by initcrctab() */
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0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
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0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
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0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
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0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
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0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
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0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
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0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
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0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
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0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
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0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
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0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
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0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
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0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
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0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
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0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
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0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
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0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
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0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
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0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
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0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
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0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
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0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
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0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
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0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
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0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
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0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
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0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
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0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
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0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
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0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
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0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
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0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
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};
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#define SUBSIZE 18*8
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static unsigned short updcrc __PR((unsigned int p_crc,
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unsigned char *cp,
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size_t cnt));
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static unsigned short
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updcrc(p_crc, cp, cnt)
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unsigned int p_crc;
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register unsigned char *cp;
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register size_t cnt;
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{
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register unsigned short crc = (unsigned short)p_crc;
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while (cnt--) {
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crc = (crc<<8) ^ crctab[(crc>>(16-8)) ^ (*cp++)];
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}
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return (crc);
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}
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static unsigned short calcCRC __PR((unsigned char *buf, unsigned bsize));
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static unsigned short
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calcCRC(buf, bsize)
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unsigned char *buf;
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unsigned bsize;
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{
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return (updcrc(0x0, (unsigned char *)buf, bsize));
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}
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static unsigned char fliptab[8] = {
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0x01,
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0x02,
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0x04,
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0x08,
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0x10,
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0x20,
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0x40,
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0x80,
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};
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static int flip_error_corr __PR((unsigned char *b, int crc));
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static int
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flip_error_corr(b, crc)
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unsigned char *b;
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int crc;
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{
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if (crc != 0) {
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int i;
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for (i = 0; i < SUBSIZE; i++) {
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char c;
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c = fliptab[i%8];
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b[i / 8] ^= c;
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if ((crc = calcCRC(b, SUBSIZE/8)) == 0) {
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return (crc);
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}
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b[i / 8] ^= c;
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}
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}
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return (crc & 0xffff);
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}
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static int cdtext_crc_ok __PR((cdtextpackdata *c));
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static int
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cdtext_crc_ok(c)
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cdtextpackdata *c;
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{
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int crc;
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int retval;
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c->crcfield[0] ^= 0xff;
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c->crcfield[1] ^= 0xff;
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crc = calcCRC(((unsigned char *)c), 18);
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retval = (0 == flip_error_corr((unsigned char *)c, crc));
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c->crcfield[0] ^= 0xff;
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c->crcfield[1] ^= 0xff;
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#if 0
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fprintf(stderr, "%02x %02x %02x %02x ",
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c->headerfield[0], c->headerfield[1],
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c->headerfield[2], c->headerfield[3]);
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fprintf(stderr,
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"%c %c %c %c %c %c %c %c %c %c %c %c ",
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c->textdatafield[0],
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c->textdatafield[1],
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c->textdatafield[2],
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c->textdatafield[3],
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c->textdatafield[4],
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c->textdatafield[5],
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c->textdatafield[6],
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c->textdatafield[7],
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c->textdatafield[8],
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c->textdatafield[9],
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c->textdatafield[10],
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c->textdatafield[11]);
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fprintf(stderr, "%02x %02x \n",
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c->crcfield[0],
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c->crcfield[1]);
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#endif
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return (retval);
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}
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#define DETAILED 0
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#if DETAILED
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static void dump_binary __PR((cdtextpackdata *c));
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static void
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dump_binary(c)
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cdtextpackdata *c;
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{
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fprintf(stderr, _(": header fields %02x %02x %02x "),
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c->headerfield[1], c->headerfield[2], c->headerfield[3]);
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fprintf(stderr,
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"%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
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c->textdatafield[0],
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c->textdatafield[1],
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c->textdatafield[2],
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c->textdatafield[3],
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c->textdatafield[4],
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c->textdatafield[5],
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c->textdatafield[6],
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c->textdatafield[7],
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c->textdatafield[8],
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c->textdatafield[9],
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c->textdatafield[10],
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c->textdatafield[11]);
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}
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#endif
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static int process_header __PR((cdtextpackdata *c, unsigned tracknr,
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int dbcc, unsigned char *line));
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static int
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process_header(c, tracknr, dbcc, line)
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cdtextpackdata *c;
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unsigned tracknr;
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int dbcc;
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unsigned char *line;
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{
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switch ((int)c->headerfield[0]) {
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case 0x80: /* Title of album or track */
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#if DETAILED
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fprintf(stderr, _("Title"));
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#endif
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if (tracknr > 0 && tracknr < 100 &&
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global.tracktitle[tracknr] == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.tracktitle[tracknr] = malloc(len + 1);
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if (global.tracktitle[tracknr] != NULL) {
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memcpy(global.tracktitle[tracknr], line, len);
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global.tracktitle[tracknr][len] = '\0';
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}
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} else if (tracknr == 0 &&
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global.disctitle == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.disctitle = malloc(len + 1);
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if (global.disctitle != NULL) {
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memcpy(global.disctitle, line, len);
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global.disctitle[len] = '\0';
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}
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}
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break;
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case 0x81: /* Name(s) of the performer(s) */
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#if DETAILED
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fprintf(stderr, _("Performer(s)"));
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#endif
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if (tracknr > 0 && tracknr < 100 &&
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global.trackperformer[tracknr] == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.trackperformer[tracknr] = malloc(len + 1);
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if (global.trackperformer[tracknr] != NULL) {
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memcpy(global.trackperformer[tracknr], line,
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len);
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global.trackperformer[tracknr][len] = '\0';
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}
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} else if (tracknr == 0 &&
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global.performer == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.performer = malloc(len + 1);
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if (global.performer != NULL) {
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memcpy(global.performer, line, len);
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global.performer[len] = '\0';
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}
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}
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break;
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case 0x82: /* Name(s) of the songwriter(s) */
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#if DETAILED
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fprintf(stderr, _("Songwriter(s)"));
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#endif
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if (tracknr > 0 && tracknr < 100 &&
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global.tracksongwriter[tracknr] == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.tracksongwriter[tracknr] = malloc(len + 1);
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if (global.tracksongwriter[tracknr] != NULL) {
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memcpy(global.tracksongwriter[tracknr], line,
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len);
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global.tracksongwriter[tracknr][len] = '\0';
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}
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} else if (tracknr == 0 &&
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global.songwriter == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.songwriter = malloc(len + 1);
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if (global.songwriter != NULL) {
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memcpy(global.songwriter, line, len);
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global.songwriter[len] = '\0';
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}
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}
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break;
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case 0x83: /* Name(s) of the composer(s) */
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#if DETAILED
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fprintf(stderr, _("Composer(s)"));
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#endif
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if (tracknr > 0 && tracknr < 100 &&
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global.trackcomposer[tracknr] == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.trackcomposer[tracknr] = malloc(len + 1);
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if (global.trackcomposer[tracknr] != NULL) {
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memcpy(global.trackcomposer[tracknr], line,
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len);
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global.trackcomposer[tracknr][len] = '\0';
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}
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} else if (tracknr == 0 &&
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global.composer == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.composer = malloc(len + 1);
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if (global.composer != NULL) {
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memcpy(global.composer, line, len);
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global.composer[len] = '\0';
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}
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}
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break;
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case 0x84: /* Name(s) of the arranger(s) */
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#if DETAILED
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fprintf(stderr, _("Arranger(s)"));
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#endif
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if (tracknr > 0 && tracknr < 100 &&
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global.trackarranger[tracknr] == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.trackarranger[tracknr] = malloc(len + 1);
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if (global.trackarranger[tracknr] != NULL) {
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memcpy(global.trackarranger[tracknr], line,
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len);
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global.trackarranger[tracknr][len] = '\0';
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}
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} else if (tracknr == 0 &&
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global.arranger == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.arranger = malloc(len + 1);
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if (global.arranger != NULL) {
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memcpy(global.arranger, line, len);
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global.arranger[len] = '\0';
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}
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}
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break;
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case 0x85: /* Message from content provider and/or artist */
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#if DETAILED
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fprintf(stderr, _("Message"));
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#endif
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if (tracknr > 0 && tracknr < 100 &&
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global.trackmessage[tracknr] == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.trackmessage[tracknr] = malloc(len + 1);
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if (global.trackmessage[tracknr] != NULL) {
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memcpy(global.trackmessage[tracknr], line,
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len);
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global.trackmessage[tracknr][len] = '\0';
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}
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} else if (tracknr == 0 &&
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global.message == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.message = malloc(len + 1);
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if (global.message != NULL) {
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memcpy(global.message, line, len);
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global.message[len] = '\0';
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}
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}
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break;
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case 0x86: /* Disc Identification and information */
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#if DETAILED
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fprintf(stderr, _("Disc identification"));
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#endif
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if (tracknr == 0 && line[0] != '\0') {
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fprintf(stderr, _("Disc identification: %s\n"), line);
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}
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break;
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case 0x87: /* Genre Identification and information */
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#if DETAILED
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fprintf(stderr, _("Genre identification"));
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#endif
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break;
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case 0x8d: /* Closed information */
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#if DETAILED
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fprintf(stderr, _("Closed information"));
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#endif
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if (tracknr > 0 && tracknr < 100 &&
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global.trackclosed_info[tracknr] == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.trackclosed_info[tracknr] = malloc(len + 1);
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if (global.trackclosed_info[tracknr] != NULL) {
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memcpy(global.trackclosed_info[tracknr], line,
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len);
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global.trackclosed_info[tracknr][len] = '\0';
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}
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} else if (tracknr == 0 &&
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global.closed_info == NULL) {
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unsigned len;
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len = strlen((char *)line);
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if (len > 0)
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global.closed_info = malloc(len + 1);
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if (global.closed_info != NULL) {
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memcpy(global.closed_info, line, len);
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global.closed_info[len] = '\0';
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}
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}
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break;
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case 0x8e: /* UPC/EAN code or ISRC code */
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#if DETAILED
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fprintf(stderr, _("UPC or ISRC"));
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#endif
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if (tracknr > 0 && tracknr < 100) {
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Set_ISRC(tracknr, line);
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} else if (tracknr == 0 && line[0] != '\0') {
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Set_MCN(line);
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}
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break;
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case 0x88: /* Table of Content information */
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#if DETAILED
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fprintf(stderr, _("Table of Content identification"));
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dump_binary(c);
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#endif
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return (0);
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case 0x89: /* Second Table of Content information */
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#if DETAILED
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fprintf(stderr, _("Second Table of Content identification"));
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dump_binary(c);
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#endif
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return (0);
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case 0x8f: /* Size information of the block */
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#if DETAILED == 0
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break;
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#else
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switch (tracknr) {
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case 0:
|
|
fprintf(outfp,
|
|
_("first track is %d, last track is %d\n"),
|
|
c->textdatafield[1],
|
|
c->textdatafield[2]);
|
|
if (c->textdatafield[3] & 0x80) {
|
|
fprintf(outfp,
|
|
_("Program Area CD Text information available\n"));
|
|
if (c->textdatafield[3] & 0x40) {
|
|
fprintf(outfp, _("Program Area copy protection available\n"));
|
|
}
|
|
}
|
|
if (c->textdatafield[3] & 0x07) {
|
|
fprintf(outfp,
|
|
_("message information is %scopyrighted\n"),
|
|
c->textdatafield[3] & 0x04 ?
|
|
"": _("not "));
|
|
fprintf(outfp,
|
|
_("Names of performer/songwriter/composer/arranger(s) are %scopyrighted\n"),
|
|
c->textdatafield[3] & 0x02 ?
|
|
"": _("not "));
|
|
fprintf(outfp,
|
|
_("album and track names are %scopyrighted\n"),
|
|
c->textdatafield[3] & 0x01 ?
|
|
"": _("not "));
|
|
}
|
|
fprintf(outfp,
|
|
_("%d packs with album/track names\n"),
|
|
c->textdatafield[4]);
|
|
fprintf(outfp,
|
|
_("%d packs with performer names\n"),
|
|
c->textdatafield[5]);
|
|
fprintf(outfp,
|
|
_("%d packs with songwriter names\n"),
|
|
c->textdatafield[6]);
|
|
fprintf(outfp,
|
|
_("%d packs with composer names\n"),
|
|
c->textdatafield[7]);
|
|
fprintf(outfp,
|
|
_("%d packs with arranger names\n"),
|
|
c->textdatafield[8]);
|
|
fprintf(outfp,
|
|
_("%d packs with artist or content provider messages\n"),
|
|
c->textdatafield[9]);
|
|
fprintf(outfp,
|
|
_("%d packs with disc identification information\n"),
|
|
c->textdatafield[10]);
|
|
fprintf(outfp,
|
|
_("%d packs with genre identification/information\n"),
|
|
c->textdatafield[11]);
|
|
break;
|
|
|
|
case 1:
|
|
fprintf(outfp,
|
|
_("%d packs with table of contents information\n"),
|
|
c->textdatafield[0]);
|
|
fprintf(outfp,
|
|
_("%d packs with second table of contents information\n"),
|
|
c->textdatafield[1]);
|
|
fprintf(outfp,
|
|
_("%d packs with reserved information\n"),
|
|
c->textdatafield[2]);
|
|
fprintf(outfp,
|
|
_("%d packs with reserved information\n"),
|
|
c->textdatafield[3]);
|
|
fprintf(outfp,
|
|
_("%d packs with reserved information\n"),
|
|
c->textdatafield[4]);
|
|
fprintf(outfp,
|
|
_("%d packs with closed information\n"),
|
|
c->textdatafield[5]);
|
|
fprintf(outfp,
|
|
_("%d packs with UPC/EAN ISRC information\n"),
|
|
c->textdatafield[6]);
|
|
fprintf(outfp,
|
|
_("%d packs with size information\n"),
|
|
c->textdatafield[7]);
|
|
fprintf(outfp,
|
|
_("last sequence numbers for blocks 1-8: %d %d %d %d "),
|
|
c->textdatafield[8],
|
|
c->textdatafield[9],
|
|
c->textdatafield[10],
|
|
c->textdatafield[11]);
|
|
break;
|
|
|
|
case 2:
|
|
fprintf(outfp, "%d %d %d %d\n",
|
|
c->textdatafield[0],
|
|
c->textdatafield[1],
|
|
c->textdatafield[2],
|
|
c->textdatafield[3]);
|
|
fprintf(outfp,
|
|
_("Language codes for blocks 1-8: %d %d %d %d %d %d %d %d\n"),
|
|
c->textdatafield[4],
|
|
c->textdatafield[5],
|
|
c->textdatafield[6],
|
|
c->textdatafield[7],
|
|
c->textdatafield[8],
|
|
c->textdatafield[9],
|
|
c->textdatafield[10],
|
|
c->textdatafield[11]);
|
|
break;
|
|
}
|
|
|
|
fprintf(stderr, _("Blocksize"));
|
|
dump_binary(c);
|
|
return (0);
|
|
|
|
#if !defined DEBUG_CDTEXT
|
|
default:
|
|
#else
|
|
}
|
|
#endif
|
|
|
|
fprintf(stderr, _(": header fields %02x %02x %02x "),
|
|
c->headerfield[1], c->headerfield[2],
|
|
c->headerfield[3]);
|
|
#endif /* DETAILED */
|
|
|
|
#if !defined DEBUG_CDTEXT
|
|
}
|
|
#if DETAILED
|
|
if (tracknr == 0) {
|
|
fprintf(stderr, _(" for album : ->"));
|
|
} else {
|
|
fprintf(stderr, _(" for track %2u: ->"), tracknr);
|
|
}
|
|
fputs((char *)line, stderr);
|
|
fputs("<-", stderr);
|
|
#endif
|
|
|
|
if (dbcc != 0) {
|
|
#else
|
|
{
|
|
#endif
|
|
/* EMPTY */
|
|
#if DETAILED
|
|
fprintf(stderr,
|
|
" %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
|
|
c->textdatafield[0],
|
|
c->textdatafield[1],
|
|
c->textdatafield[2],
|
|
c->textdatafield[3],
|
|
c->textdatafield[4],
|
|
c->textdatafield[5],
|
|
c->textdatafield[6],
|
|
c->textdatafield[7],
|
|
c->textdatafield[8],
|
|
c->textdatafield[9],
|
|
c->textdatafield[10],
|
|
c->textdatafield[11]);
|
|
#endif
|
|
}
|
|
return (0);
|
|
}
|