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-
- #define VERSION "vvsb 1.03 01-26-86"
-
- /*
- *
- * A small program for VMS which can send 1 or more
- * files with YMODEM protocol to computers running YAM or compatible programs.
- * (Use the "rb" command in YAM.)
- * Supports the CRC option or regular checksum.
- *
- * accepts -k option for 1kb record length.
- *
- * Can send one file with XOMDEM protocol: use "sb -X file"
- *
- * Typical compile and install sequence:
- * cc vvsb.c
- * cc vvmodem.c
- * link vvsb,vvmodem
- * sb :== $disk$user2:[username.subdir]vvsb.exe
- *
- * Manual page is "sb.1" in the Unix version rbsb.sh file
- */
-
- #define LOGFILE "sblog"
-
- #include stdio.h
- #include ctype.h
- #include "vmodem.h"
-
- #ifdef vms
- #include ssdef
- #include tt2def
- #include ttdef
- #define SS_NORMAL SS$_NORMAL
- #else
- #define SS_NORMAL 0
- #endif
-
- /* VMS structures */
- #ifdef vms
- /*
- * TT_INFO structures are used for passing information about
- * the terminal. Used in GTTY and STTY calls.
- */
- struct tt_info ttys, ttysnew, ttystemp;
- #endif
-
-
- #define OK 0
- #define FALSE 0
- #define TRUE 1
- #define ERROR (-1)
-
- FILE *in;
-
- /* Ward Christensen / CP/M parameters - Don't change these! */
- #define ENQ 005
- #define CAN ('X'&037)
- #define XOFF ('s'&037)
- #define XON ('q'&037)
- #define SOH 1
- #define STX 2
- #define EOT 4
- #define ACK 6
- #define NAK 025
- #define CPMEOF 032
- #define WANTCRC 0103 /* send C not NAK to get crc not checksum */
- #define TIMEOUT (-2)
- #define RETRYMAX 10
- #define SECSIZ 128 /* cp/m's Magic Number record size */
- #define KSIZE 1024
-
- char Lastrx;
- char Crcflg;
- int Verbose=0;
- int Quiet=0; /* overrides logic that would otherwise set verbose */
- int Modem=0; /* MODEM - don't send pathnames */
- int Fullname=0; /* transmit full pathname */
- int firstsec;
- int errcnt=0; /* number of files unreadable */
- int blklen=SECSIZ; /* length of transmitted records */
- int Totsecs; /* total number of sectors this file */
- char txbuf[KSIZE];
- int Filcnt=0; /* count of number of files opened */
-
- unsigned updcrc();
- char *substr(), *getenv();
-
-
-
- main(argc, argv)
- char *argv[];
- {
- register char *cp;
- register npats;
- int agcnt; char **agcv;
- char **patts;
- int exitcode;
- #ifndef REGULUS
- static char xXbuf[BUFSIZ];
- #endif
-
- npats=0;
- if (argc<2)
- goto usage;
- #ifndef REGULUS
- setbuf(stdout, xXbuf);
- #endif
- while (--argc) {
- cp = *++argv;
- if (*cp == '-') {
- while ( *++cp) {
- switch(*cp) {
- case 'f':
- Fullname=TRUE; break;
- case 'k':
- blklen=KSIZE; break;
- case 'q':
- Quiet=TRUE; Verbose=0; break;
- case 'v':
- ++Verbose; break;
- case 'x':
- case 'X':
- ++Modem; break;
- default:
- goto usage;
- }
- }
- }
- else if ( !npats && argc>0) {
- if (argv[0][0]) {
- npats=argc;
- patts=argv;
- }
- }
- }
- if (npats < 1) {
- usage:
- fprintf(stderr,"%s by Chuck Forsberg\n", VERSION);
- fprintf(stderr,"Usage: sb [-fkqv] file ... (YMODEM)\n");
- fprintf(stderr,"or sb -X [-kqv] file (XMODEM)\n");
- exit(SS_NORMAL);
- }
-
- if (Verbose) {
- if (freopen(LOGFILE, "a", stderr)==NULL) {
- printf("Can't open log file %s\n",LOGFILE);
- exit(SS_NORMAL);
- }
- setbuf(stderr, NULL);
- }
- if (Verbose != 1) {
- fprintf(stderr, "sb: %d file%s requested:\r\n",
- npats, npats>1?"s":"");
- for ( agcnt=npats, agcv=patts; --agcnt>=0; ) {
- fprintf(stderr, "%s ", *agcv++);
- }
- }
- if ( !Modem)
- printf("\r\n\bSending in Batch Mode\r\n");
- fflush(stdout);
-
- setmodes();
-
- if (wcsend(npats, patts)==ERROR) {
- exitcode=0200;
- canit();
- }
- fflush(stdout);
- restoremodes(FALSE);
- exit(SS_NORMAL);
- }
-
- wcsend(argc, argp)
- char *argp[];
- {
- register n;
-
- Crcflg=FALSE;
- firstsec=TRUE;
- for (n=0; n<argc; ++n) {
- Totsecs = 0;
- if (wcs(argp[n])==ERROR)
- goto fubar;
- }
- Totsecs = 0;
- if (Filcnt==0) { /* bitch if we couldn't open ANY files */
- fprintf(stderr,"\r\nCan't open any requested files.\n");
- return ERROR;
- }
- else if (wctxpn("")==ERROR)
- goto fubar;
- return OK;
- fubar:
- canit(); return ERROR;
- }
-
- wcs(name)
- char *name;
- {
- register c;
-
- if ((in=fopen(name, "r"))==NULL) {
- ++errcnt;
- return OK; /* pass over it, there may be others */
- }
- ++Filcnt;
- if (wctxpn(name)!= ERROR)
- return wctx();
- else {
- return ERROR;
- }
- }
-
- /*
- * generate and transmit pathname block consisting of
- * pathname (null terminated),
- * file length provided by RMS
- */
- wctxpn(name)
- char *name;
- {
- register firstch;
- register char *p, *q;
- long filestat();
-
- uncaps(name); /* Get it out of VMS RADIX50 */
-
- if (Modem)
- return OK;
- logent("\r\nAwaiting pathname nak for %s\r\n", *name?name:"<END>");
- if ((firstch=readline(800))==TIMEOUT) {
- logent("Timeout on pathname\n");
- return ERROR;
- }
- if (firstch==WANTCRC)
- Crcflg=TRUE;
- for (p=name, q=txbuf ; *p; )
- if ((*q++ = *p++) == '/' && !Fullname)
- q = txbuf;
- *q++ = 0;
- p=q;
- while (q < (txbuf + KSIZE))
- *q++ = 0;
-
- if (*name)
- sprintf(p, "%lu", filestat(name));
-
- /* force 1k blocks if name won't fit in 128 byte block */
- if (strlen(txbuf) > 127)
- blklen=KSIZE;
- if (wcputsec(txbuf, 0, SECSIZ)==ERROR)
- return ERROR;
- return OK;
- }
-
- wctx()
- {
- register int sectnum, attempts, firstch;
-
- firstsec=TRUE;
-
- while ((firstch=readline(400))!=NAK && firstch != WANTCRC
- && firstch!=TIMEOUT && firstch!=CAN)
- ;
- if (firstch==CAN) {
- logent("Receiver CANcelled\n");
- return ERROR;
- }
- if (firstch==WANTCRC)
- Crcflg=TRUE;
- sectnum=1;
- while (filbuf(txbuf, blklen)) {
- if (wcputsec(txbuf, sectnum, blklen)==ERROR) {
- return ERROR;
- } else
- sectnum++;
- }
- if (Verbose>1)
- fprintf(stderr, " Closing ");
- fclose(in);
- attempts=0;
- do {
- logent(" EOT ");
- readline(1);
- sendline(EOT);
- fflush(stdout);
- ++attempts;
- }
- while ((firstch=(readline(100)) != ACK) && attempts < RETRYMAX);
- if (attempts == RETRYMAX) {
- logent("No ACK on EOT\n");
- return ERROR;
- }
- else
- return OK;
- }
-
- wcputsec(buf, sectnum, cseclen)
- char *buf;
- int sectnum;
- int cseclen; /* data length of this sector to send */
- {
- register checksum, wcj;
- register char *cp;
- unsigned oldcrc;
- int firstch;
- int attempts;
-
- firstch=0; /* part of logic to detect CAN CAN */
-
- if (Verbose>1)
- fprintf(stderr, "\rSector %3d %2dk ", Totsecs, Totsecs/8 );
- for (attempts=0; attempts <= RETRYMAX; attempts++) {
- Lastrx= firstch;
- sendline(cseclen==KSIZE?STX:SOH);
- sendline(sectnum);
- sendline(-sectnum -1);
- oldcrc=checksum=0;
- for (cp=txbuf, wcj=cseclen; wcj; wcj -= 128) {
- raw_wbuf(128, cp);
- cp += 128;
- }
- for (cp=txbuf, wcj=cseclen; --wcj>=0; ) {
- oldcrc=updcrc(*cp, oldcrc);
- checksum += (*cp++);
- }
- if (Crcflg) {
- oldcrc=updcrc(0,updcrc(0,oldcrc));
- sendline((int)oldcrc>>8);
- sendline((int)oldcrc);
- }
- else
- sendline(checksum);
-
-
- firstch = readline(400);
- gotnak:
- switch (firstch) {
- case CAN:
- if(Lastrx == CAN) {
- cancan:
- logent("Cancelled\n"); return ERROR;
- }
- break;
- case TIMEOUT:
- logent("Timeout on sector ACK\n"); continue;
- case WANTCRC:
- if (firstsec)
- Crcflg = TRUE;
- case NAK:
- logent("NAK on sector\n"); continue;
- case ACK:
- firstsec=FALSE;
- Totsecs += (cseclen>>7);
- return OK;
- default:
- logent("Got %02x for sector ACK\n", firstch);
- break;
- }
- for (;;) {
- Lastrx = firstch;
- if ((firstch = readline(400)) == TIMEOUT)
- break;
- if (firstch == NAK || firstch == WANTCRC)
- goto gotnak;
- if (firstch == CAN && Lastrx == CAN)
- goto cancan;
- }
- }
- if (Verbose)
- logent("Retry Count Exceeded\n");
- return ERROR;
- }
-
-
- /* fill buf with count chars padding with ^Z for CPM */
- filbuf(buf, count)
- register char *buf;
- {
- register c, m;
- m=count;
- while ((c=getc(in))!=EOF) {
- *buf++ =c;
- if (--m == 0)
- break;
- }
- if (m==count)
- return 0;
- else
- while (--m>=0)
- *buf++ = CPMEOF;
- return count;
- }
-
-
-
-
-
- /* update CRC */
- unsigned updcrc(c, crc)
- register c;
- register unsigned crc;
- {
- register count;
-
- for (count=8; --count>=0;) {
- if (crc & 0x8000) {
- crc <<= 1;
- crc += (((c<<=1) & 0400) != 0);
- crc ^= 0x1021;
- }
- else {
- crc <<= 1;
- crc += (((c<<=1) & 0400) != 0);
- }
- }
- return crc;
- }
-
- /* send 10 CAN's to try to get the other end to shut up */
- canit()
- {
- register n;
- for (n=10; --n>=0; )
- sendline(CAN);
- }
-
- #ifdef REGULUS
- /*
- * copies count bytes from s to d
- * (No structure assignment in Regulus C compiler)
- */
- movmem(s, d, count)
- register char *s, *d;
- register count;
- {
- while (--count >= 0)
- *d++ = *s++;
- }
- #endif
-
- /*VARARGS1*/
- logent(a, b, c)
- char *a, *b, *c;
- {
- if(Verbose)
- fprintf(stderr, a, b, c);
- }
-
-
- /*
- * substr(string, token) searches for token in string s
- * returns pointer to token within string if found, NULL otherwise
- */
- char *
- substr(s, t)
- register char *s,*t;
- {
- register char *ss,*tt;
- /* search for first char of token */
- for (ss=s; *s; s++)
- if (*s == *t)
- /* compare token with substring */
- for (ss=s,tt=t; ;) {
- if (*tt == 0)
- return s;
- if (*ss++ != *tt++)
- break;
- }
- return NULL;
- }
-
-
- /* set tty modes for sb transfers */
- setmodes()
- {
- /* Device characteristics for VMS */
- #ifdef vms
- int *iptr, parameters;
-
- /*
- * Get current terminal parameters.
- */
- if (gtty(&ttys) != SS$_NORMAL)
- error("SETMODES: error return from GTTY (1)", FALSE);
- if (gtty(&ttysnew) != SS$_NORMAL)
- error("SETMODES: error return from GTTY (2)", FALSE);
-
- /*
- * Set new terminal parameters.
- * Note that there are three bytes of terminal characteristics,
- * so we should make sure the fourth byte of the integer is unchanged.
- */
- iptr = &(ttysnew.dev_characteristics.bcharacteristics);
- parameters = *iptr;
-
- parameters &= ~TT$M_ESCAPE; /* ESCAPE OFF */
- parameters &= ~TT$M_HOSTSYNC; /* HOSTSYNC OFF */
- parameters |= TT$M_NOECHO; /* NOECHO ON */
- parameters |= TT$M_PASSALL; /* PASSALL ON */
- parameters &= ~TT$M_READSYNC; /* READSYNC OFF */
- parameters &= ~TT$M_TTSYNC; /* TTSYNC OFF */
- parameters &= ~TT$M_WRAP; /* WRAP OFF */
- parameters |= TT$M_EIGHTBIT; /* EIGHTBIT ON */
-
- *iptr = parameters;
-
- if (stty(&ttysnew) != SS_NORMAL)
- error("SETMODES: error return from STTY", TRUE);
- #endif
- }
-
-
-
- /* restore normal tty modes */
- restoremodes(errcall)
- int errcall;
- {
- /* Device characteristic restoration for VMS */
- #ifdef vms
- if (stty(&ttys) != SS_NORMAL) /* Restore original modes */
- {
- if (!errcall)
- error("Error restoring original terminal params.",
- FALSE);
- else
- {
- printf("sb/RESTOREMODES: ");
- printf("Error restoring original terminal params.\n");
- }
- }
- #endif
- }
-
- /* get a byte from data stream -- timeout if "dseconds" elapses */
- /* NOTE, however, that this function returns an INT, not a BYTE!!! */
- readline(dseconds)
- {
- int seconds;
- int c;
-
- seconds = dseconds/10;
- if (seconds < 5)
- seconds = 5;
- #ifdef vms
- c = raw_read(1, &c, seconds);
-
- if (c == SS$_TIMEOUT)
- return(TIMEOUT);
-
- return(c & 0377); /* return the char */
- #endif
- }
-
- /* send a byte to data stream */
- sendline(data)
- {
- char dataout;
-
- dataout = data;
- #ifdef vms
- raw_write(dataout);
- #endif
-
- }
-
-
- /* print error message and exit; if mode == TRUE, restore normal tty modes */
- error(msg, mode)
- char *msg;
- int mode;
- {
- if (mode)
- restoremodes(TRUE); /* put back normal tty modes */
- printf("sb: %s\n", msg);
- logent("Fatal Error: %s\n", msg);
- exit(SS_NORMAL);
- }
-
-
- /* make string s lower case */
- uncaps(s)
- register char *s;
- {
- for ( ; *s; ++s)
- if ( ! (*s & 0200))
- *s = tolower(*s);
- }
-
-
-