/* * * -rev 04-16-87 * This file contains Unix specific code for setting terminal modes, * very little is specific to ZMODEM or YMODEM per se (that code is in * sz.c and rz.c). The CRC-16 routines used by XMODEM, YMODEM, and ZMODEM * are also in this file, a fast table driven macro version * * This file is #included so the main file can set parameters such as HOWMANY. * See the main files (rz.c/sz.c) for compile instructions. */ #ifdef AMIGA #define OS "the Amiga" struct IOExtSer *SetSer(); ULONG Len,Stop,ParFlags; char ParityCH; /* parity character N=none,E=even,O=odd */ /* * if op is 0 then clean up and prepare for exit * if op is 1 then init serial port, timers etc. * bomb for the other modes */ mode(op) int op; { struct IOExtSer *Ser; switch(op) { case 1:if( SetTimer()!=0 ) return ERROR; else { InitParams(); if( (Ser=SetSer(InitSer?Baudrate:-1,Len,Stop,SERF_SHARED|SERF_XDISABLED|ParFlags))==NULL ) return ERROR; } UpDateParms(Ser); fprintf(stderr,"Transferring at %d baud, %d%c%d\n",Baudrate,Len,ParityCH,Stop); #ifndef RZ /* sz needs bigger buffer for higher speeds */ if (Baudrate > 300) BufferSize = 256; if (Baudrate > 1200) BufferSize = 512; if (Baudrate > 2400) BufferSize = KSIZE; if (Rxbuflen && BufferSize>Rxbuflen) BufferSize = Rxbuflen; if (blkopt && BufferSize > blkopt) BufferSize = blkopt; Next=OutBuf=(UBYTE *)malloc(BufferSize); #endif return OK; case 0: CloseSer(); CloseTimer(); #ifndef RZ if(OutBuf) free(OutBuf); #endif return OK; default: /* bomb for other modes */ return ERROR; } } InitParams() { FILE *fparm; if( (fparm=fopen("zmodem.init","r"))==NULL && (fparm=fopen("S:zmodem.init","r"))==NULL) { /* default to preferences */ InitSer = FALSE; } else { gmt_diff=100; fscanf(fparm,"%d %d%c%d %d",&Baudrate,&Len,&ParityCH,&Stop,&gmt_diff); if(gmt_diff!=100) gmt_diff_set=TRUE; fclose(fparm); switch(ParityCH) { case 'E': case 'e': ParFlags = SERF_PARTY_ON;break; case 'o': case 'O': ParFlags = SERF_PARTY_ON|SERF_PARTY_ODD;break; default : ParFlags = NULL; } } } UpDateParms(SS) struct IOExtSer *SS; { if( !InitSer) { Baudrate = SS->io_Baud; Len = SS->io_ReadLen; Stop = SS->io_StopBits; if( SS->io_SerFlags & SERF_PARTY_ON) { if( SS->io_SerFlags & SERF_PARTY_ODD) ParityCH = 'O'; else ParityCH= 'E'; } else ParityCH = 'N'; } if( Len<8 || ParityCH!='N') { /* set 7 bit text mode */ Wcsmask = 0177; #ifdef RZ Rxascii=TRUE; #else Lzconv = 2; /* This 2 is really ZCNL, but the way the includes are */ Ascii = TRUE; /* set up I had to hack it this way */ #endif } } sleep(n) int n; { if(n>0) Delay (50*n); return (0); } #else /* UNIX versions */ #ifdef V7 #include #include #include #define OS "V7/BSD" #endif #ifndef OS #ifndef USG #define USG #endif #endif #ifdef USG #include #include #include #include #define OS "SYS III/V" #endif #if HOWMANY > 255 Howmany must be 255 or less #endif struct { unsigned baudr; int speedcode; } speeds[] = { 110, B110, 300, B300, 600, B600, 1200, B1200, 2400, B2400, 4800, B4800, 9600, B9600, 19200, EXTA, 9600, EXTB, 0, }; int Twostop; /* Use two stop bits */ static unsigned getspeed(code) { register n; for (n=0; speeds[n].baudr; ++n) if (speeds[n].speedcode == code) return speeds[n].baudr; return 0; } #ifdef ICANON struct termio oldtty, tty; #else struct sgttyb oldtty, tty; struct tchars oldtch, tch; #endif int iofd = 0; /* File descriptor for ioctls & reads */ /* * mode(n) * 3: save old tty stat, set raw mode with flow control * 2: set a cbreak, XON/XOFF control mode if using Pro-YAM's -g option * 1: save old tty stat, set raw mode * 0: restore original tty mode */ mode(n) { static did0 = FALSE; vfile("mode:%d", n); switch(n) { #ifdef USG case 2: /* Cbreak mode used by sb when -g detected */ if(!did0) (void) ioctl(iofd, TCGETA, &oldtty); tty = oldtty; tty.c_iflag = BRKINT|IXON; tty.c_oflag = 0; /* Transparent output */ tty.c_cflag &= ~PARENB; /* Disable parity */ tty.c_cflag |= CS8; /* Set character size = 8 */ if (Twostop) tty.c_cflag |= CSTOPB; /* Set two stop bits */ tty.c_lflag = #ifdef XCLUDE XCLUDE | #endif Zmodem ? 0 : ISIG; tty.c_cc[VINTR] = 030; /* Interrupt char */ tty.c_cc[VMIN] = 1; (void) ioctl(iofd, TCSETAW, &tty); did0 = TRUE; return OK; case 1: case 3: if(!did0) (void) ioctl(iofd, TCGETA, &oldtty); tty = oldtty; tty.c_iflag = n==3 ? (IGNBRK|IXOFF) : IGNBRK; /* No echo, crlf mapping, INTR, QUIT, delays, no erase/kill */ tty.c_lflag &= ~(ECHO | ICANON | ISIG); #ifdef XCLUDE tty.c_lflag |= XCLUDE; #endif tty.c_oflag = 0; /* Transparent output */ tty.c_cflag &= ~PARENB; /* Same baud rate, disable parity */ tty.c_cflag |= CS8; /* Set character size = 8 */ if (Twostop) tty.c_cflag |= CSTOPB; /* Set two stop bits */ #ifdef NFGVMIN tty.c_cc[VMIN] = 1; /* This many chars satisfies reads */ #else tty.c_cc[VMIN] = HOWMANY; /* This many chars satisfies reads */ #endif tty.c_cc[VTIME] = 1; /* or in this many tenths of seconds */ (void) ioctl(iofd, TCSETAW, &tty); did0 = TRUE; Baudrate = getspeed(tty.c_cflag & CBAUD); return OK; #endif #ifdef V7 case 2: /* This doesn't work ... */ printf("No mode(2) in V7/BSD!"); bibi(99); if(!did0) { ioctl(iofd, TIOCEXCL, 0); ioctl(iofd, TIOCGETP, &oldtty); ioctl(iofd, TIOCGETC, &oldtch); } tty = oldtty; tch = oldtch; tch.t_intrc = Zmodem ? 03:030; /* Interrupt char */ tty.sg_flags |= (ODDP|EVENP|CBREAK); tty.sg_flags &= ~(ALLDELAY|CRMOD|ECHO|LCASE); ioctl(iofd, TIOCSETP, &tty); ioctl(iofd, TIOCSETC, &tch); did0 = TRUE; return OK; case 1: case 3: if(!did0) { ioctl(iofd, TIOCEXCL, 0); ioctl(iofd, TIOCGETP, &oldtty); ioctl(iofd, TIOCGETC, &oldtch); } tty = oldtty; tty.sg_flags |= RAW; tty.sg_flags &= ~ECHO; ioctl(iofd, TIOCSETP, &tty); did0 = TRUE; Baudrate = getspeed(tty.sg_ospeed); return OK; #endif case 0: if(!did0) return ERROR; #ifdef USG (void) ioctl(iofd, TCSBRK, 1); /* Wait for output to drain */ (void) ioctl(iofd, TCFLSH, 1); /* Flush input queue */ (void) ioctl(iofd, TCSETAW, &oldtty); /* Restore original modes */ (void) ioctl(iofd, TCXONC,1); /* Restart output */ #endif #ifdef V7 ioctl(iofd, TIOCSETP, &oldtty); ioctl(iofd, TIOCSETC, &oldtch); ioctl(iofd, TIOCNXCL, 0); #endif return OK; default: return ERROR; } } #endif sendbrk() { #ifdef AMIGA SendBreak(); #else #ifdef V7 #ifdef TIOCSBRK #define CANBREAK sleep(1); ioctl(iofd, TIOCSBRK, 0); sleep(1); ioctl(iofd, TIOCCBRK, 0); #endif #endif #ifdef USG #define CANBREAK ioctl(iofd, TCSBRK, 0); #endif #endif /* AMIGA */ } #ifdef AMIGA rdchk() { if (SerOpen) { if (Lleft>0) return Lleft; else return CharsWaiting(); } } #else #ifdef FIONREAD #define READCHECK /* * Return non 0 iff something to read from io descriptor f */ rdchk(f) { static long lf; ioctl(f, FIONREAD, &lf); return ((int) lf); } #endif #ifdef SVR2 #define READCHECK #include char checked = '\0' ; /* * Nonblocking I/O is a bit different in System V, Release 2 */ rdchk(f) { int lf, savestat = fcntl(f, F_GETFL) ; fcntl(f, F_SETFL, savestat | O_NDELAY) ; lf = read(f, &checked, 1) ; fcntl(f, F_SETFL, savestat) ; return(lf) ; } #endif #endif /* crctab calculated by Mark G. Mendel, Network Systems Corporation */ static unsigned short crctab[256] = { 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef, 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de, 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d, 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4, 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc, 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823, 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49, 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78, 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067, 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c, 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634, 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab, 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3, 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92, 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1, 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0 }; /* * updcrc macro derived from article Copyright (C) 1986 Stephen Satchell. * NOTE: First srgument must be in range 0 to 255. * Second argument is referenced twice. * * Programmers may incorporate any or all code into their programs, * giving proper credit within the source. Publication of the * source routines is permitted so long as proper credit is given * to Stephen Satchell, Satchell Evaluations and Chuck Forsberg, * Omen Technology. */ #define updcrc(cp, crc) ( crctab[((crc >> 8) & 255)] ^ (crc << 8) ^ cp) /* * Copyright (C) 1986 Gary S. Brown. You may use this program, or * code or tables extracted from it, as desired without restriction. */ /* First, the polynomial itself and its table of feedback terms. The */ /* polynomial is */ /* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */ /* Note that we take it "backwards" and put the highest-order term in */ /* the lowest-order bit. The X^32 term is "implied"; the LSB is the */ /* X^31 term, etc. The X^0 term (usually shown as "+1") results in */ /* the MSB being 1. */ /* Note that the usual hardware shift register implementation, which */ /* is what we're using (we're merely optimizing it by doing eight-bit */ /* chunks at a time) shifts bits into the lowest-order term. In our */ /* implementation, that means shifting towards the right. Why do we */ /* do it this way? Because the calculated CRC must be transmitted in */ /* order from highest-order term to lowest-order term. UARTs transmit */ /* characters in order from LSB to MSB. By storing the CRC this way, */ /* we hand it to the UART in the order low-byte to high-byte; the UART */ /* sends each low-bit to hight-bit; and the result is transmission bit */ /* by bit from highest- to lowest-order term without requiring any bit */ /* shuffling on our part. Reception works similarly. */ /* The feedback terms table consists of 256, 32-bit entries. Notes: */ /* */ /* The table can be generated at runtime if desired; code to do so */ /* is shown later. It might not be obvious, but the feedback */ /* terms simply represent the results of eight shift/xor opera- */ /* tions for all combinations of data and CRC register values. */ /* */ /* The values must be right-shifted by eight bits by the "updcrc" */ /* logic; the shift must be unsigned (bring in zeroes). On some */ /* hardware you could probably optimize the shift in assembler by */ /* using byte-swap instructions. */ static long cr3tab[] = { /* CRC polynomial 0xedb88320 */ 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d }; #ifdef NFGM long UPDC32(b, c) long c; { return (cr3tab[((int)c ^ b) & 0xff] ^ ((c >> 8) & 0x00FFFFFF)); } #else #define UPDC32(b, c) (cr3tab[((int)c ^ b) & 0xff] ^ ((c >> 8) & 0x00FFFFFF)) #endif /* End of rbsb.c */