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- /* C K C F N 3 -- Packet buffer management for C-Kermit */
-
- /* (plus assorted functions tacked on at the end) */
-
- /*
- Author: Frank da Cruz (fdc@columbia.edu, FDCCU@CUVMA.BITNET),
- Columbia University Center for Computing Activities.
- First released January 1985.
- Copyright (C) 1985, 1992, Trustees of Columbia University in the City of New
- York. Permission is granted to any individual or institution to use this
- software as long as it is not sold for profit. This copyright notice must be
- retained. This software may not be included in commercial products without
- written permission of Columbia University.
- */
-
- #include "ckcdeb.h"
- #include "ckcasc.h"
- #include "ckcker.h"
- #include "ckcxla.h"
-
- extern int unkcs, wmax, wcur, discard, bctu, bctl, local, fdispla;
- extern CHAR *data;
- extern char filnam[];
- #ifndef NOFRILLS
- extern int rprintf, rmailf; /* REMOTE MAIL, PRINT */
- extern char optbuf[]; /* Options buffer for mail, print */
- #endif /* NOFRILLS */
- extern int wslots;
- extern int fblksiz, frecl, forg, frecfm, fncact, fcctrl, lf_opts;
- #ifdef DYNAMIC
- extern CHAR *srvcmd;
- #else
- extern CHAR srvcmd[];
- #endif
-
- extern int binary, spsiz;
- extern int pktnum, cxseen, czseen, bsave, bsavef, nfils, stdinf;
- extern int memstr, stdouf, keep, sndsrc, hcflg;
- extern int server, en_cwd;
-
- extern int
- atenci, atenco, atdati, atdato, atleni, atleno, atblki, atblko,
- attypi, attypo, atsidi, atsido, atsysi, atsyso, atdisi, atdiso;
-
- #ifdef datageneral
- extern int quiet;
- #endif /* datageneral */
-
- extern long fsize, filcnt, ffc, tfc;
-
- #ifndef NOCSETS
- extern int tcharset, fcharset;
- extern int ntcsets;
- extern struct csinfo tcsinfo[], fcsinfo[];
-
- /* Pointers to translation functions */
- #ifdef CK_ANSIC
- extern CHAR (*xls[MAXTCSETS+1][MAXFCSETS+1])(CHAR); /* Character set */
- extern CHAR (*xlr[MAXTCSETS+1][MAXFCSETS+1])(CHAR); /* translation functions */
- extern CHAR (*rx)(CHAR); /* Pointer to input character translation function */
- extern CHAR (*sx)(CHAR); /* Pointer to output character translation function */
- #else
- extern CHAR (*xls[MAXTCSETS+1][MAXFCSETS+1])(); /* Character set */
- extern CHAR (*xlr[MAXTCSETS+1][MAXFCSETS+1])(); /* translation functions. */
- extern CHAR (*rx)(); /* Pointer to input character translation function */
- extern CHAR (*sx)(); /* Pointer to output character translation function */
- #endif /* CK_ANSIC */
- #endif /* NOCSETS */
-
- /* Variables global to Kermit that are defined in this module */
-
- int winlo; /* packet number at low window edge */
-
- int sbufnum; /* number of free buffers */
- int dum001 = 1234; /* protection... */
- int sbufuse[MAXWS]; /* buffer in-use flag */
- int dum003 = 1111;
- int rbufnum; /* number of free buffers */
- int dum002 = 4321; /* more protection */
- int rbufuse[MAXWS]; /* buffer in-use flag */
- int sseqtbl[64]; /* sequence # to buffer # table */
- int rseqtbl[64]; /* sequence # to buffer # table */
- int sacktbl[64]; /* sequence # ack table */
-
- #ifdef DYNAMIC
- struct pktinfo *s_pkt = NULL; /* array of pktinfo structures */
- struct pktinfo *r_pkt = NULL; /* array of pktinfo structures */
- #else
- struct pktinfo s_pkt[MAXWS]; /* array of pktinfo structures */
- struct pktinfo r_pkt[MAXWS]; /* array of pktinfo structures */
- #endif /* DYNAMIC */
-
- #ifdef DEBUG
- char xbuf[200]; /* For debug logging */
- #endif /* DEBUG */
-
- #ifdef DYNAMIC
- CHAR *bigsbuf = NULL, *bigrbuf = NULL;
- #else
- char bigsbt[8]; /* Protection (shouldn't need this). */
- /* BUT DON'T REMOVE IT! */
- CHAR bigsbuf[SBSIZ + 5]; /* Send-packet buffer area */
- char bigrbt[8]; /* Safety padding */
- CHAR bigrbuf[RBSIZ + 5]; /* Receive-packet area */
- #endif
- int bigsbsiz = SBSIZ; /* Sizes of big send & rcv buffers. */
- int bigrbsiz = RBSIZ;
-
- /* FUNCTIONS */
-
- /* For sanity, use "i" for buffer slots, "n" for packet numbers. */
-
- /* I N I B U F S */
-
- /*
- Allocates the big send and receive buffers.
- Call with size for big send buffer (s) and receive buffer (r).
- These sizes can be different.
- Attempts to allocate buffers of the requested size, but if it can't,
- it will allocate smaller ones.
- Sets global variables bigsbsiz and bigrbsiz to the actual sizes,
- and bigsbuf and bigrbuf pointing to the actual buffers.
- Designed to be called more than once.
- Returns 0 on success, -1 on failure.
- */
-
- CHAR *bigbufp = NULL;
-
- int
- inibufs(s,r) int s, r; {
- #ifdef DYNAMIC
- int size, x;
- long z;
-
- if (s < 80 || r < 80) return(-1); /* Validate arguments. */
-
- if (!s_pkt) { /* Allocate packet info structures */
- if (!(s_pkt = (struct pktinfo *) malloc(sizeof(struct pktinfo)*MAXWS)))
- fatal("ini_pkts: no memory for s_pkt");
- }
- for (x = 0; x < MAXWS; x++)
- s_pkt[x].pk_adr = NULL; /* Initialize addresses */
-
- if (!r_pkt) {
- if (!(r_pkt = (struct pktinfo *) malloc(sizeof(struct pktinfo)*MAXWS)))
- fatal("ini_pkts: no memory for s_pkt");
- }
- for (x = 0; x < MAXWS; x++)
- r_pkt[x].pk_adr = NULL; /* Initialize addresses */
-
- if (!srvcmd) { /* Allocate srvcmd buffer */
- srvcmd = (CHAR *) malloc(r + 100);
- if (!srvcmd) return(-1);
- }
- if (bigbufp) { /* Free previous buffers, if any. */
- free(bigbufp);
- bigbufp = NULL;
- }
- size = s + r + 40; /* Combined requested size + padding */
-
- /* Try to get the space. If malloc fails, try to get a little less. */
- /* (Obviously, this algorithm can be refined.) */
-
- while (!(bigbufp = (CHAR *) malloc(size))) {
- size = (size * 3) / 2; /* Failed, cut size by 1/3. */
- if (size < 200) /* Try again until too small. */
- return(-1);
- }
- debug(F101,"inibufs size","",size); /* OK, we got some space. */
-
- /*
- Now divide the allocated space between the send and receive buffers in the
- requested proportion. The natural formula would be (s / (s + r)) * size
- (for the send buffer), but that doesn't work with integer arithmetic and we
- can't use floating point because some machines don't have it. This can be
- rearranged as (s * size) / (s + r). But (s * size) can be VERY large, too
- large for 32 bits. So let's do it this way. This arithmetic works for
- buffer sizes up to about 5,000,000.
- */
- #define FACTOR 20L
- z = ( (long) s * FACTOR ) / ( (long) s + (long) r );
- x = ( z * ( (long) size / FACTOR ) );
- if (x < 0) return(-1); /* Catch overflow */
-
- bigsbsiz = x - 5; /* Size of send buffer */
- bigsbuf = bigbufp; /* Address of send buffer */
- debug(F101,"inibufs bigsbsiz","",bigsbsiz);
-
- bigrbsiz = size - x - 5; /* Size of receive buffer */
- bigrbuf = bigbufp + x; /* Addresss of receive buffer */
- debug(F101,"inibufs bigrbsiz","",bigrbsiz);
-
- return(0); /* Success */
- #else /* No dynamic allocation */
- bigsbsiz = SBSIZ; /* Just use the symbols */
- bigrbsiz = RBSIZ; /* ... */
- return(0); /* Success. */
- #endif /* DYNAMIC */
- }
-
-
- /* M A K E B U F -- Makes and clears a new buffers. */
-
- /* Call with: */
- /* slots: number of buffer slots to make, 1 to 31 */
- /* bufsiz: size of the big buffer */
- /* buf: address of the big buffer */
- /* xx: pointer to array of pktinfo structures for these buffers */
-
- /* Subdivides the big buffer into "slots" buffers. */
-
- /* Returns: */
- /* -1 if too many or too few slots requested, */
- /* -2 if slots would be too small. */
- /* n (positive) on success = size of one buffer. */
- /* with pktinfo structure initialized for this set of buffers. */
-
- int
- makebuf(slots,bufsiz,buf,xx)
- /* makebuf */ int slots, bufsiz; CHAR buf[]; struct pktinfo *xx; {
-
- CHAR *a;
- int i, size;
-
- debug(F101,"makebuf","",slots);
- debug(F101,"makebuf bufsiz","",bufsiz);
- debug(F101,"makebuf MAXWS","",MAXWS);
-
- if (slots > MAXWS || slots < 1) return(-1);
- if (bufsiz < slots * 10 ) return(-2);
-
- size = bufsiz / slots; /* Divide up the big buffer. */
- a = buf; /* Address of first piece. */
-
- for (i = 0; i < slots; i++) {
- struct pktinfo *x = &xx[i];
- x->bf_adr = a; /* Address of this buffer */
- x->bf_len = size; /* Length of this buffer */
- x->pk_len = 0; /* Length of data field */
- x->pk_typ = ' '; /* packet type */
- x->pk_seq = -1; /* packet sequence number */
- x->pk_flg = 0; /* ack'd bit */
- x->pk_rtr = 0; /* retransmissions */
- *a = '\0'; /* Clear the buffer */
- a += size; /* Position to next buffer slot */
- }
- return(size);
- }
-
- /* M A K S B U F -- Makes the send-packet buffer */
-
- int
- mksbuf(slots) int slots; {
- int i, x;
- sbufnum = 0;
- if ((x = makebuf(slots,bigsbsiz,bigsbuf,s_pkt)) < 0) {
- debug(F101,"mksbuf makebuf return","",x);
- return(x);
- }
- debug(F101,"mksbuf makebuf return","",x);
- for (i = 0; i < 64; i++) { /* Initialize sequence-number- */
- sseqtbl[i] = -1; /* to-buffer-number table. */
- sacktbl[i] = 0;
- }
- for (i = 0; i < MAXWS; i++)
- sbufuse[i] = 0; /* Mark each buffer as free */
- sbufnum = slots;
- return(x);
- }
-
- /* M A K R B U F -- Makes the receive-packet buffer */
-
- int
- mkrbuf(slots) int slots; {
- int i, x;
- rbufnum = 0;
- if ((x = makebuf(slots,bigrbsiz,bigrbuf,r_pkt)) < 0) {
- debug(F101,"mkrbuf makebuf return","",x);
- return(x);
- }
- debug(F101,"mkrbuf makebuf return","",x);
- for (i = 0; i < 64; i++) { /* Initialize sequence-number- */
- rseqtbl[i] = -1; /* to-buffer-number table. */
- }
- for (i = 0; i < MAXWS; i++)
- rbufuse[i] = 0; /* Mark each buffer as free */
- rbufnum = slots;
- return(x);
- }
-
- /* W I N D O W -- Resize the window to n */
-
- int
- window(n) int n; {
- debug(F101,"window","",n);
- if (n < 1 || n > 31) return(-1);
- if (mksbuf(n) < 0) return(-1);
- if (mkrbuf(n) < 0) return(-1);
- wslots = n;
- #ifdef DEBUG
- if (deblog) dumpsbuf();
- if (deblog) dumprbuf();
- #endif /* DEBUG */
- return(0);
- }
-
- /* G E T S B U F -- Allocate a send-buffer. */
-
- /* Call with packet sequence number to allocate buffer for. */
- /* Returns: */
- /* -4 if argument is invalid (negative, or greater than 63) */
- /* -3 if buffers were thought to be available but really weren't (bug!) */
- /* -2 if the number of free buffers is negative (bug!) */
- /* -1 if no free buffers. */
- /* 0 or positive, packet sequence number, with buffer allocated for it. */
-
- int
- getsbuf(n) int n; { /* Allocate a send-buffer */
- int i;
- if (n < 0 || n > 63) {
- debug(F101,"getsbuf bad arg","",n);
- return(-4); /* Bad argument */
- }
- debug(F101,"getsbuf, packet","",n);
- debug(F101,"getsbuf, sbufnum","",sbufnum);
- if (sbufnum == 0) return(-1); /* No free buffers. */
- if (sbufnum < 0) return(-2); /* Shouldn't happen. */
- for (i = 0; i < wslots; i++) /* Find the first one not in use. */
- if (sbufuse[i] == 0) { /* Got one? */
- sbufuse[i] = 1; /* Mark it as in use. */
- sbufnum--; /* One less free buffer. */
- *s_pkt[i].bf_adr = '\0'; /* Zero the buffer data field */
- s_pkt[i].pk_seq = n; /* Put in the sequence number */
- sseqtbl[n] = i; /* Back pointer from sequence number */
- sacktbl[n] = 0; /* ACK flag */
- s_pkt[i].pk_len = 0; /* Data field length now zero. */
- s_pkt[i].pk_typ = ' '; /* Blank the packet type too. */
- s_pkt[i].pk_flg = 0; /* Zero the flags */
- s_pkt[i].pk_rtr = 0; /* Zero the retransmission count */
- data = s_pkt[i].bf_adr + 7; /* Set global "data" address. */
- wcur = wslots - sbufnum; /* Current number of window slots */
- if (i+1 > wmax) wmax = i+1; /* For statistics. */
- return(n); /* Return its index. */
- }
- sbufnum = 0; /* Didn't find one. */
- return(-3); /* Shouldn't happen! */
- }
-
- int
- getrbuf() { /* Allocate a receive buffer */
- int i;
- debug(F101,"getrbuf rbufnum","",rbufnum);
- debug(F101,"getrbuf wslots","",wslots);
- debug(F101,"getrbuf dum002","",dum002);
- debug(F101,"getrbuf dum003","",dum003);
- if (rbufnum == 0) return(-1); /* No free buffers. */
- if (rbufnum < 0) return(-2); /* Shouldn't happen. */
- for (i = 0; i < wslots; i++) /* Find the first one not in use. */
- if (rbufuse[i] == 0) { /* Got one? */
- rbufuse[i] = 1; /* Mark it as in use. */
- *r_pkt[i].bf_adr = '\0'; /* Zero the buffer data field */
- rbufnum--; /* One less free buffer. */
- debug(F101,"getrbuf new rbufnum","",rbufnum);
- #ifdef COMMENT
- wcur = wslots - rbufnum; /* Current number of window slots */
- #endif /* COMMENT */
- if (i+1 > wmax) wmax = i+1; /* For statistics. */
- return(i); /* Return its index. */
- }
- debug(F101,"getrbuf foulup","",i);
- rbufnum = 0; /* Didn't find one. */
- return(-3); /* Shouldn't happen! */
- }
-
- /* F R E E S B U F -- Free send-buffer for given packet sequence number */
-
- /* Returns: */
- /* 1 upon success */
- /* -1 if specified buffer does not exist */
-
- int
- freesbuf(n) int n; { /* Release send-buffer for packet n. */
- int i;
-
- debug(F101,"freesbuf","",n);
- if (n < 0 || n > 63) /* No such packet. */
- return(-1);
- i = sseqtbl[n]; /* Get the window slot number. */
- if (i > -1 && i <= wslots) {
- sseqtbl[n] = -1; /* If valid, remove from seqtbl */
- sbufnum++; /* and count one more free buffer */
- sbufuse[i] = 0; /* and mark it as free, */
- } else {
- debug(F101," sseqtbl[n]","",sseqtbl[n]);
- return(-1);
- }
-
- /* The following is done only so dumped buffers will look right. */
-
- if (1) {
- *s_pkt[i].bf_adr = '\0'; /* Zero the buffer data field */
- s_pkt[i].pk_seq = -1; /* Invalidate the sequence number */
- s_pkt[i].pk_len = 0; /* Data field length now zero. */
- s_pkt[i].pk_typ = ' '; /* Blank the packet type too. */
- s_pkt[i].pk_flg = 0; /* And zero the flag */
- s_pkt[i].pk_rtr = 0; /* And the retries field. */
- }
- return(1);
- }
-
- int
- freerbuf(i) int i; { /* Release receive-buffer slot "i". */
- int n;
-
- /* NOTE !! Currently, this function frees the indicated buffer, but */
- /* does NOT erase the data. The program counts on this. Will find a */
- /* better way later.... */
-
- debug(F101,"freerbuf, slot","",i);
- if (i < 0 || i >= wslots) { /* No such slot. */
- debug(F101,"freerbuf no such slot","",i);
- return(-1);
- }
- n = r_pkt[i].pk_seq; /* Get the packet sequence number */
- debug(F101,"freerbuf, packet","",n);
- if (n > -1 && n < 64) /* If valid, remove from seqtbl */
- rseqtbl[n] = -1;
- if (rbufuse[i] != 0) { /* If really allocated, */
- rbufuse[i] = 0; /* mark it as free, */
- rbufnum++; /* and count one more free buffer. */
- debug(F101,"freerbuf, new rbufnum","",rbufnum);
- }
-
- /* The following is done only so dumped buffers will look right. */
-
- if (1) {
- /* *r_pkt[i].bf_adr = '\0'; */ /* Zero the buffer data field */
- r_pkt[i].pk_seq = -1; /* And from packet list */
- r_pkt[i].pk_len = 0; /* Data field length now zero. */
- r_pkt[i].pk_typ = ' '; /* Blank the packet type too. */
- r_pkt[i].pk_flg = 0; /* And zero the flag */
- r_pkt[i].pk_rtr = 0; /* And the retries field. */
- }
- return(1);
- }
-
- /* This is like freerbuf, except it's called with a packet sequence number */
- /* rather than a packet buffer index. */
-
- VOID
- freerpkt(seq) int seq; {
- int k;
- debug(F101,"freerpkt seq","",seq);
- k = rseqtbl[seq];
- debug(F101,"freerpkt k","",k);
- if (k > -1) {
- k = freerbuf(k);
- debug(F101,"freerpkt freerbuf","",k);
- }
- }
-
-
- /* C H K W I N -- Check if packet n is in window. */
-
- /* Returns: */
- /* 0 if it is in the current window, */
- /* +1 if it would have been in previous window (e.g. if ack was lost), */
- /* -1 if it is outside any window (protocol error), */
- /* -2 if either of the argument packet numbers is out of range. */
-
- /* Call with packet number to check (n), lowest packet number in window */
- /* (bottom), and number of slots in window (slots). */
-
- int
- chkwin(n,bottom,slots) int n, bottom, slots; {
- int top, prev;
-
- debug(F101,"chkwin packet","",n);
- debug(F101,"chkwin winlo","",bottom);
- debug(F101,"chkwin slots","",slots);
-
- /* First do the easy and common cases, where the windows are not split. */
-
- if (n < 0 || n > 63 || bottom < 0 || bottom > 63)
- return(-2);
-
- if (n == bottom) return(0); /* In a perfect world... */
-
- top = bottom + slots; /* Calculate window top. */
- if (top < 64 && n < top && n >= bottom)
- return(0); /* In current window. */
-
- prev = bottom - slots; /* Bottom of previous window. */
- if (prev > -1 && n < bottom && n > prev)
- return(1); /* In previous. */
-
- /* Now consider the case where the current window is split. */
-
- if (top > 63) { /* Wraparound... */
- top -= 64; /* Get modulo-64 sequence number */
- if (n < top || n >= bottom) {
- return(0); /* In current window. */
- } else { /* Not in current window. */
- if (n < bottom && n >= prev) /* Previous window can't be split. */
- return(1); /* In previous window. */
- else
- return(-1); /* Not in previous window. */
- }
- }
-
- /* Now the case where current window not split, but previous window is. */
-
- if (prev < 0) { /* Is previous window split? */
- prev += 64; /* Yes. */
- if (n < bottom || n >= prev)
- return(1); /* In previous window. */
- } else { /* Previous window not split. */
- if (n < bottom && n >= prev)
- return(1); /* In previous window. */
- }
-
- /* It's not in the current window, and not in the previous window... */
-
- return(-1); /* So it's not in any window. */
- }
-
- int
- dumpsbuf() { /* Dump send-buffers */
- #ifdef DEBUG
- int j, x; /* to debug log. */
-
- if (! deblog) return(0);
- x = zsoutl(ZDFILE,"SEND BUFFERS:");
- if (x < 0) {
- deblog = 0;
- return(0);
- }
- x=zsoutl(ZDFILE,"buffer inuse address length data type seq flag retries");
- if (x < 0) {
- deblog = 0;
- return(0);
- }
- for ( j = 0; j < wslots; j++ ) {
- sprintf(xbuf,"%4d%6d%10d%5d%6d%4c%5d%5d%6d\n",
- j,
- sbufuse[j],
- s_pkt[j].bf_adr,
- s_pkt[j].bf_len,
- s_pkt[j].pk_len,
- s_pkt[j].pk_typ,
- s_pkt[j].pk_seq,
- s_pkt[j].pk_flg,
- s_pkt[j].pk_rtr
- );
- if (zsout(ZDFILE,xbuf) < 0) {
- deblog = 0;
- return(0);
- }
- if (s_pkt[j].pk_adr) {
- x = (int)strlen((char *) s_pkt[j].pk_adr);
- if (x)
- sprintf(xbuf,"[%.72s%s]\n",s_pkt[j].pk_adr, x > 72 ? "..." : "");
- else
- sprintf(xbuf,"[(empty string)]\n");
- } else {
- sprintf(xbuf,"[(null pointer)]\n");
- }
- if (zsout(ZDFILE,xbuf) < 0) {
- deblog = 0;
- return(0);
- }
- }
- sprintf(xbuf,"free: %d, winlo: %d\n", sbufnum, winlo);
- if (zsout(ZDFILE,xbuf) < 0) {
- deblog = 0;
- return(0);
- }
- return(0);
- #endif /* DEBUG */
- }
- int
- dumprbuf() { /* Dump receive-buffers */
- #ifdef DEBUG
- int j, x;
- if (! deblog) return(0);
- if (zsoutl(ZDFILE,"RECEIVE BUFFERS:") < 0) {
- deblog = 0;
- return(0);
- }
- x=zsoutl(ZDFILE,"buffer inuse address length data type seq flag retries");
- if (x < 0) {
- deblog = 0;
- return(0);
- }
- for ( j = 0; j < wslots; j++ ) {
- sprintf(xbuf,"%4d%6d%10d%5d%6d%4c%5d%5d%6d\n",
- j,
- rbufuse[j],
- r_pkt[j].bf_adr,
- r_pkt[j].bf_len,
- r_pkt[j].pk_len,
- r_pkt[j].pk_typ,
- r_pkt[j].pk_seq,
- r_pkt[j].pk_flg,
- r_pkt[j].pk_rtr
- );
- if (zsout(ZDFILE,xbuf) < 0) {
- deblog = 0;
- return(0);
- }
- x = (int)strlen((char *)r_pkt[j].bf_adr);
- sprintf(xbuf,"[%.72s%s]\n",r_pkt[j].bf_adr, x > 72 ? "..." : "");
- if (zsout(ZDFILE,xbuf) < 0) {
- deblog = 0;
- return(0);
- }
- }
- sprintf(xbuf,"free: %d, winlo: %d\n", rbufnum, winlo);
- if (zsout(ZDFILE,xbuf) < 0) {
- deblog = 0;
- return(0);
- }
- return(0);
- #endif /* DEBUG */
- }
-
- /*** Some misc functions also moved here from the other ckcfn*.c modules ***/
- /*** to even out the module sizes. ***/
-
- /* Attribute Packets. */
-
- /*
- Call with xp == 0 if we're sending a real file (F packet),
- or xp != 0 for screen data (X packet).
- Returns 0 on success, -1 on failure.
- */
- int
- sattr(xp) int xp; { /* Send Attributes */
- int i, j, aln;
- char *tp;
- struct zattr x;
-
- if (zsattr(&x) < 0) return(-1); /* Get attributes or die trying */
- if (nxtpkt() < 0) return(-1); /* Next packet number */
- i = 0; /* i = Data field character number */
- if (atsido) { /* System type */
- data[i++] = '.';
- data[i++] = tochar(x.systemid.len); /* Copy from attr structure */
- for (j = 0; j < x.systemid.len; j++)
- data[i++] = x.systemid.val[j];
- }
- if (attypo) { /* File type */
- data[i++] = '"';
- if (
- #ifdef VMS
- binary == XYFT_I || binary == XYFT_L || /* IMAGE or LABELED */
- !strncmp(x.recfm.val,"F",1) /* or RECFM=Fxxxxxx */
- #else
- binary /* User said SET FILE TYPE BINARY */
- #endif /* VMS */
- ) { /* Binary */
- data[i++] = tochar(2); /* Two characters */
- data[i++] = 'B'; /* B for Binary */
- data[i++] = '8'; /* 8-bit bytes (note assumption...) */
- #ifdef VMS
- if (binary != XYFT_I && binary != XYFT_L) binary = XYFT_B;
- #endif /* VMS */
- } else { /* Text */
- data[i++] = tochar(3); /* Three characters */
- data[i++] = 'A'; /* A = (extended) ASCII with CRLFs */
- data[i++] = 'M'; /* M for carriage return */
- data[i++] = 'J'; /* J for linefeed */
- #ifdef VMS
- binary = XYFT_T; /* We automatically detected text */
- #endif /* VMS */
-
- #ifdef NOCSETS
- data[i++] = '*'; /* Encoding */
- data[i++] = tochar(1); /* Length of value is 1 */
- data[i++] = 'A'; /* A for ASCII */
- #else
- if (tcharset == TC_TRANSP) /* Transfer character set */
- tp = NULL;
- else
- tp = tcsinfo[tcharset].designator;
- if ((tp != NULL) && (aln = (int)strlen(tp)) > 0) {
- data[i++] = '*'; /* Encoding */
- data[i++] = tochar(aln+1); /* Length of charset designator. */
- data[i++] = 'C'; /* Text in specified character set. */
- for (j = 0; j < aln; j++) /* Designator from tcsinfo struct */
- data[i++] = *tp++; /* Example: *&I6/100 */
- }
- #endif /* NOCSETS */
- }
- }
- if ((xp == 0) && (x.length > -1L)) { /* If it's a real file */
-
- if (atdato && (aln = x.date.len) > 0) { /* Creation date, if any */
- data[i++] = '#';
- data[i++] = tochar(aln);
- for (j = 0; j < aln; j++)
- data[i++] = x.date.val[j];
- }
- if (atleno) {
- data[i] = '!'; /* File length in K */
- sprintf((char *) &data[i+2],"%ld",x.lengthk);
- aln = (int)strlen((char *)(data+i+2));
- data[i+1] = tochar(aln);
- i += aln + 2;
-
- data[i] = '1'; /* File length in bytes */
- sprintf((char *) &data[i+2],"%ld",x.length);
- aln = (int)strlen((char *)(data+i+2));
- data[i+1] = tochar(aln);
- i += aln + 2;
- }
- if (atblko && fblksiz) { /* Blocksize, if set */
- data[i] = '(';
- sprintf((char *) &data[i+2],"%d",fblksiz);
- aln = (int)strlen((char *)(data+i+2));
- data[i+1] = tochar(aln);
- i += aln + 2;
- }
- }
- #ifndef NOFRILLS
- if ((rprintf || rmailf) && atdiso) { /* MAIL, or REMOTE PRINT? */
- data[i++] = '+'; /* Disposition */
- data[i++] = tochar((int)strlen(optbuf) + 1); /* Options, if any */
- if (rprintf)
- data[i++] = 'P'; /* P for Print */
- else
- data[i++] = 'M'; /* M for Mail */
- for (j = 0; optbuf[j]; j++) /* Copy any options */
- data[i++] = optbuf[j];
- }
- #endif /* NOFRILLS */
- data[i] = '\0'; /* Make sure it's null-terminated */
- aln = (int)strlen((char *)data); /* Get overall length of attributes */
-
- /* Change this code to break attribute data up into multiple packets! */
-
- j = (spsiz < 95) ? (92 - bctl) : (spsiz - 2 - bctl);
- if (aln > j) { /* Check length of result */
- spack('A',pktnum,0,(CHAR *)""); /* send an empty attribute packet */
- debug(F101,"sattr pkt too long","",aln); /* if too long */
- debug(F101,"sattr spsiz","",spsiz);
- } else { /* Otherwise */
- spack('A',pktnum,aln,data); /* send the real thing. */
- debug(F111,"sattr",data,aln);
- }
-
- return(0);
- }
-
- static char *refused = "";
-
- static char *reason[] = {
- "size", "type", "date", "creator", "account", "area", "password",
- "blocksize", "access", "encoding", "disposition", "protection",
- "protection", "origin", "format", "sys-dependent", "size" };
- static int nreason = sizeof(reason) / sizeof(char *);
-
- char *
- getreason(s) char *s; { /* Decode attribute refusal reason */
- char c, *p;
- p = s;
- if (*p++ != 'N') return(""); /* Should start with N */
- if ((c = *p) > SP) { /* get reason, */
- c -= '!'; /* get offset */
- p = ((unsigned int) ((CHAR) c) <= nreason) ? reason[c] : "unknown";
- }
- return(p);
- }
-
- int
- rsattr(s) CHAR *s; { /* Read response to attribute packet */
- debug(F111,"rsattr: ",s,*s);
- if (*s == 'N') { /* If it's 'N' followed by anything, */
- refused = getreason((char *)s); /* they are refusing, get reason. */
- debug(F110,"refused",refused,0);
- tlog(F110,"refused",refused,0L);
- return(-1);
- } else refused = "";
- return(0);
- }
-
- int
- gattr(s, yy) CHAR *s; struct zattr *yy; { /* Read incoming attribute packet */
- char c;
- int aln, i;
- #define ABUFL 40 /* Temporary buffer for conversions */
- char abuf[ABUFL];
- #define FTBUFL 10 /* File type buffer */
- static char ftbuf[FTBUFL];
- #define DTBUFL 40 /* File creation date */
- static char dtbuf[DTBUFL];
- #define TSBUFL 10 /* Transfer syntax */
- static char tsbuf[TSBUFL];
- #define IDBUFL 10 /* System ID */
- static char idbuf[IDBUFL];
- #ifndef DYNAMIC
- #define DSBUFL 100 /* Disposition */
- static char dsbuf[DSBUFL];
- #define SPBUFL 512 /* System-dependent parameters */
- static char spbuf[SPBUFL];
- #else
- #define DSBUFL 100 /* Disposition */
- static char *dsbuf = NULL;
- #define SPBUFL 512 /* System-dependent parameters */
- static char *spbuf = NULL;
- #endif /* DYNAMIC */
- #define RPBUFL 20 /* Attribute reply */
- static char rpbuf[RPBUFL];
-
- char *rp; /* Pointer to reply buffer */
- int retcode; /* Return code */
-
- /* fill in the attributes we have received */
-
- rp = rpbuf; /* Initialize reply buffer */
- *rp++ = 'N'; /* for negative reply. */
- retcode = 0; /* Initialize return code. */
-
- while (c = *s++) { /* Get attribute tag */
- aln = xunchar(*s++); /* Length of attribute string */
- switch (c) {
- case '!': /* File length in K */
- for (i = 0; (i < aln) && (i < ABUFL); i++) /* Copy it */
- abuf[i] = *s++;
- abuf[i] = '\0'; /* Terminate with null */
- if (i < aln) s += (aln - i); /* If field was too long for buffer */
- yy->lengthk = atol(abuf); /* Convert to number */
- break;
-
- case '"': /* file type */
- for (i = 0; (i < aln) && (i < FTBUFL); i++)
- ftbuf[i] = *s++; /* Copy it into a static string */
- ftbuf[i] = '\0';
- if (i < aln) s += (aln - i);
- if (attypi) { /* TYPE attribute is enabled? */
- yy->type.val = ftbuf; /* Pointer to string */
- yy->type.len = i; /* Length of string */
- debug(F101,"gattr file type",tsbuf,i);
- if (
- *ftbuf != 'A' && *ftbuf != 'B' /* Unknown type? */
- #ifdef VMS
- /* or (VMS) our FILE TYPE is LABELED and the incoming file is text... */
- || binary == XYFT_L && *ftbuf == 'A'
- #endif /* VMS */
- ) {
- discard = 1; /* Reject the file */
- retcode = -1;
- *rp++ = c;
- break;
- }
- /*
- The following code moved here from opena() so we set binary mode
- as soon as requested by the attribute packet. That way when the first
- data packet comes, the mode of transfer can be displayed correctly
- before opena() is called.
- */
- if (bsavef) { /* If somehow file mode */
- binary = bsave; /* was saved but not restored, */
- bsavef = 0; /* restore it. */
- debug(F101,"gattr restoring binary","",binary);
- }
- if (yy->type.val[0] == 'A') { /* Check received attributes. */
- bsave = binary; /* ASCII. Save global file type */
- bsavef = 1; /* ( restore it in clsof() ) */
- binary = XYFT_T; /* Set current type to Text. */
- debug(F100,"gattr attribute A = text","",binary); /* */
- } else if (yy->type.val[0] == 'B') {
- bsave = binary; /* Binary. Save global file type */
- bsavef = 1;
- #ifdef VMS
- if (binary != XYFT_L && binary != XYFT_U) /* VMS cases */
- #endif /* VMS */
- binary = XYFT_B;
- debug(F101,"gattr attribute B = binary","",binary);
- }
- }
- break;
-
- case '#': /* File creation date */
- for (i = 0; (i < aln) && (i < DTBUFL); i++)
- dtbuf[i] = *s++; /* Copy it into a static string */
- if (i < aln) s += (aln - i);
- dtbuf[i] = '\0';
- if (atdati) {
- yy->date.val = dtbuf; /* Pointer to string */
- yy->date.len = i; /* Length of string */
- if (fncact == XYFX_U) { /* Receiving in update mode? */
- if (zstime(filnam,yy,1) > 0) { /* Compare dates */
- discard = 1; /* If incoming file is older, */
- *rp++ = c; /* discard it, reason = date. */
- retcode = -1; /* Rejection notice. */
- }
- }
- }
- break;
-
- case '(': /* File Block Size */
- for (i = 0; (i < aln) && (i < ABUFL); i++) /* Copy it */
- abuf[i] = *s++;
- abuf[i] = '\0'; /* Terminate with null */
- if (i < aln) s += (aln - i);
- if (atblki)
- yy->blksize = atol(abuf); /* Convert to number */
- break;
-
- case '*': /* Encoding (transfer syntax) */
- for (i = 0; (i < aln) && (i < TSBUFL); i++)
- tsbuf[i] = *s++; /* Copy it into a static string */
- if (i < aln) s += (aln - i);
- tsbuf[i] = '\0';
- if (atenci) {
- yy->encoding.val = tsbuf; /* Pointer to string */
- yy->encoding.len = i; /* Length of string */
- debug(F101,"gattr encoding",tsbuf,i);
- switch (*tsbuf) {
- #ifndef NOCSETS
- case 'A': /* Normal (maybe extended) ASCII */
- tcharset = TC_USASCII; /* Transparent chars untranslated */
- break;
- case 'C': /* Specified character set */
- for (i = 0; i < ntcsets; i++) {
- if (!strcmp(tcsinfo[i].designator,tsbuf+1)) break;
- }
- debug(F101,"gattr xfer charset lookup","",i);
- if (i == ntcsets) { /* If unknown character set, */
- debug(F110,"gattr: xfer charset unknown",tsbuf+1,0);
- if (!unkcs) { /* and SET UNKNOWN DISCARD, */
- retcode = -1; /* reject the file. */
- *rp++ = c;
- }
- } else {
- tcharset = tcsinfo[i].code; /* if known, use it */
- rx = xlr[tcharset][fcharset]; /* xlation function */
- }
- debug(F101,"gattr tcharset","",tcharset);
- break;
- #endif /* NOCSETS */
- default: /* Something else. */
- debug(F110,"gattr unk encoding attribute",tsbuf,0);
- if (!unkcs) { /* If SET UNK DISC */
- retcode = -1; /* reject the file */
- *rp++ = c;
- }
- break;
- }
- }
- break;
-
- case '+': /* disposition */
- #ifdef DYNAMIC
- if (!dsbuf)
- if ((dsbuf = malloc(DSBUFL+1)) == NULL)
- fatal("gtattr: no memory for dsbuf");
- #endif /* DYNAMIC */
- for (i = 0; (i < aln) && (i < DSBUFL); i++)
- dsbuf[i] = *s++; /* Copy it into a static string */
- dsbuf[i] = '\0';
- if (i < aln) s += (aln - i);
- if (atdisi) {
- yy->disp.val = dsbuf; /* Pointer to string */
- yy->disp.len = i; /* Length of string */
- if (
- #ifndef datageneral /* MAIL supported only for */
- #ifndef OS2 /* UNIX, VMS, and OS-9 */
- #ifndef MAC
- #ifndef GEMDOS
- #ifndef AMIGA
- *dsbuf != 'M' &&
- #endif /* AMIGA */
- #endif /* GEMDOS */
- #endif /* MAC */
- #endif /* OS/2 */
- #endif /* datageneral */
- *dsbuf != 'P') {
- retcode = -1;
- *rp++ = c;
- }
- }
- break;
-
- case '.': /* Sender's system ID */
- for (i = 0; (i < aln) && (i < IDBUFL); i++)
- idbuf[i] = *s++; /* Copy it into a static string */
- idbuf[i] = '\0';
- if (i < aln) s += (aln - i);
- if (atsidi) {
- yy->systemid.val = idbuf; /* Pointer to string */
- yy->systemid.len = i; /* Length of string */
- }
- break;
-
- case '0': /* System-dependent parameters */
- #ifdef DYNAMIC
- if (!spbuf && !(spbuf = malloc(SPBUFL)))
- fatal("gattr: no memory for spbuf");
- #endif /* DYNAMIC */
- for (i = 0; (i < aln) && (i < SPBUFL); i++)
- spbuf[i] = *s++; /* Copy it into a static string */
- spbuf[i] = '\0';
- if (i < aln) s += (aln - i);
- if (atsysi) {
- yy->sysparam.val = spbuf; /* Pointer to string */
- yy->sysparam.len = i; /* Length of string */
- }
- break;
-
- case '1': /* File length in bytes */
- for (i = 0; (i < aln) && (i < ABUFL); i++) /* Copy it */
- abuf[i] = *s++;
- abuf[i] = '\0'; /* Terminate with null */
- if (i < aln) s += (aln - i);
- yy->length = atol(abuf); /* Convert to number */
- debug(F111,"gattr length",abuf,(int) yy->length);
- break;
-
- default: /* Unknown attribute */
- s += aln; /* Just skip past it */
- break;
- }
- }
-
- /* Check file length now, because we also need to know the file type */
- /* in case zchkspa() differentiates text and binary (VMS version does) */
-
- if (atleni) { /* Length attribute enabled? */
- if (yy->length > -1L) { /* Length-in-bytes attribute rec'd? */
- if (!zchkspa(filnam,(yy->length))) { /* Check space */
- retcode = -1;
- *rp++ = '1';
- }
- } else if (yy->lengthk > -1L) { /* Length in K attribute rec'd? */
- if (!zchkspa(filnam,(yy->lengthk * 1024))) {
- retcode = -1; /* Check space */
- *rp++ = '!';
- }
- }
- }
- if (yy->length > -1L) { /* Get the file size */
- fsize = yy->length;
- } else if (yy->lengthk > -1L) {
- fsize = yy->lengthk * 1024L;
- } else fsize = -1L;
-
- #ifdef DEBUG
- if (deblog) {
- sprintf(abuf,"%ld",fsize);
- debug(F110,"gattr fsize",abuf,0);
- }
- #endif /* DEBUG */
- if (retcode == 0) rp = rpbuf; /* Null reply string if accepted */
- *rp = '\0'; /* End of reply string */
- yy->reply.val = rpbuf; /* Add it to attribute structure */
- yy->reply.len = (int)strlen(rpbuf);
- debug(F111,"gattr return",rpbuf,retcode);
- return(retcode);
- }
-
- /* I N I T A T T R -- Initialize file attribute structure */
-
- int
- initattr(yy) struct zattr *yy; {
- yy->lengthk = yy->length = -1L;
- yy->type.val = "";
- yy->type.len = 0;
- yy->date.val = "";
- yy->date.len = 0;
- yy->encoding.val = "";
- yy->encoding.len = 0;
- yy->disp.val = "";
- yy->disp.len = 0;
- yy->systemid.val = "";
- yy->systemid.len = 0;
- yy->sysparam.val = "";
- yy->sysparam.len = 0;
- yy->creator.val = "";
- yy->creator.len = 0;
- yy->account.val = "";
- yy->account.len = 0;
- yy->area.val = "";
- yy->area.len = 0;
- yy->passwd.val = "";
- yy->passwd.len = 0;
- yy->blksize = -1L;
- yy->access.val = "";
- yy->access.len = 0;
- yy->lprotect.val = "";
- yy->lprotect.len = 0;
- yy->gprotect.val = "";
- yy->gprotect.len = 0;
- yy->recfm.val = "";
- yy->recfm.len = 0;
- yy->reply.val = "";
- yy->reply.len = 0;
- return(0);
- }
-
- /* A D E B U -- Write attribute packet info to debug log */
-
- int
- adebu(f,zz) char *f; struct zattr *zz; {
- #ifdef DEBUG
- if (deblog == 0) return(0);
- debug(F110,"Attributes for incoming file ",f,0);
- debug(F101," length in K","",(int) zz->lengthk);
- debug(F111," file type",zz->type.val,zz->type.len);
- debug(F111," creation date",zz->date.val,zz->date.len);
- debug(F111," creator",zz->creator.val,zz->creator.len);
- debug(F111," account",zz->account.val,zz->account.len);
- debug(F111," area",zz->area.val,zz->area.len);
- debug(F111," password",zz->passwd.val,zz->passwd.len);
- debug(F101," blksize","",(int) zz->blksize);
- debug(F111," access",zz->access.val,zz->access.len);
- debug(F111," encoding",zz->encoding.val,zz->encoding.len);
- debug(F111," disposition",zz->disp.val,zz->disp.len);
- debug(F111," lprotection",zz->lprotect.val,zz->lprotect.len);
- debug(F111," gprotection",zz->gprotect.val,zz->gprotect.len);
- debug(F111," systemid",zz->systemid.val,zz->systemid.len);
- debug(F111," recfm",zz->recfm.val,zz->recfm.len);
- debug(F111," sysparam",zz->sysparam.val,zz->sysparam.len);
- debug(F101," length","",(int) zz->length);
- debug(F110," reply",zz->reply.val,0);
- #endif /* DEBUG */
- return(0);
- }
-
- /* O P E N A -- Open a file, with attributes. */
- /*
- This function tries to open a new file to put the arriving data in. The
- filename is the one in the srvcmd buffer. File collision actions are:
- OVERWRITE (the existing file is overwritten), RENAME (the new file is
- renamed), BACKUP (the existing file is renamed), DISCARD (the new file is
- refused), UPDATE (the incoming file replaces the existing file only if the
- incoming file has a newer creation date).
-
- Returns 0 on failure, nonzero on success.
- */
- int
- opena(f,zz) char *f; struct zattr *zz; {
- int x;
- static struct filinfo fcb; /* Must be static! */
-
- debug(F111,"opena discard",f,discard);
-
- adebu(f,zz); /* Write attributes to debug log */
-
- ffc = 0L; /* Init file character counter */
-
- #ifdef COMMENT
- /*
- This code moved to sattr().
- */
- if (bsavef) { /* If somehow file mode */
- binary = bsave; /* was saved but not restored, */
- bsavef = 0; /* restore it. */
- debug(F101,"opena restoring binary","",binary);
- }
- if (zz->type.val[0] == 'A') { /* Check received attributes */
- #ifdef VMS
- if (binary == XYFT_L) /* Refuse to receive a file in */
- return(0); /* labeled mode if sent as text. */
- #endif /* VMS */
- bsave = binary; /* ASCII. Save global file type */
- bsavef = 1; /* ( restore it in clsof() ) */
- binary = XYFT_T; /* Set current type to Text. */
- debug(F100,"opena attribute A = text","",binary);
- } else if (zz->type.val[0] == 'B') {
- bsave = binary; /* Binary. Save global file type */
- bsavef = 1;
- #ifdef VMS
- if (binary != XYFT_L && binary != XYFT_U) /* Special VMS cases */
- #endif /* VMS */
- binary = XYFT_B;
- debug(F101,"opena attribute B = binary","",binary);
- }
- #endif /* COMMENT */
-
- /* Set up file control structure */
-
- fcb.bs = fblksiz; /* Blocksize */
- #ifndef NOCSETS
- fcb.cs = fcharset; /* Character set */
- #else
- fcb.cs = 0; /* Character set */
- #endif /* NOCSETS */
- fcb.rl = frecl; /* Record Length */
- fcb.fmt = frecfm; /* Record Format */
- fcb.org = forg; /* Organization */
- fcb.cc = fcctrl; /* Carriage control */
- fcb.typ = binary; /* Type */
- fcb.dsp = (fncact == XYFX_A) ? XYFZ_A : XYFZ_N; /* Disposition */
- fcb.os_specific = '\0'; /* OS specific info */
- #ifdef VMS
- fcb.lblopts = lf_opts; /* VMS Labeled file options */
- #else
- fcb.lblopts = 0;
- #endif /* VMS */
-
- if (x = openo(f,zz,&fcb)) { /* Try to open the file. */
- tlog(F110," as",f,0L); /* OK, open, record name. */
- if (binary) { /* Log file mode in transaction log */
- tlog(F101," mode: binary","",(long) binary);
- } else { /* If text mode, check character set */
- tlog(F100," mode: text","",0L);
- #ifndef NOCSETS
- tlog(F110," file character set",fcsinfo[fcharset].name,0L);
- if (tcharset == TC_TRANSP)
- tlog(F110," xfer character set","transparent",0L);
- else
- tlog(F110," xfer character set",tcsinfo[tcharset].name,0L);
- #endif /* NOCSETS */
- debug(F111," opena charset",zz->encoding.val,zz->encoding.len);
- }
- if (fsize > -1L) screen(SCR_FS,0,fsize,"");
-
- #ifdef datageneral
- /* Need to turn on multi-tasking console interrupt task here, since multiple */
- /* files may be received. */
- if ((local) && (!quiet)) /* Only do this if local & not quiet */
- consta_mt(); /* Start the asynch read task */
- #endif /* datageneral */
-
- } else { /* Did not open file OK. */
- #ifdef ATTSV
- extern char *sys_errlist[];
- extern int errno;
- screen(SCR_EM,0,0l,sys_errlist[errno]);
- #else
- #ifdef BSD4
- extern char *sys_errlist[];
- extern int errno;
- screen(SCR_EM,0,0l,sys_errlist[errno]);
- #else
- screen(SCR_EM,0,0l,"Can't open output file");
- #endif /* BSD4 */
- #endif /* ATTSV */
-
- tlog(F110,"Failure to open",f,0L);
-
-
- }
- return(x); /* Pass on return code from openo */
- }
-
- /* C A N N E D -- Check if current file transfer cancelled */
-
- int
- canned(buf) CHAR *buf; {
- if (*buf == 'X') cxseen = 1;
- if (*buf == 'Z') czseen = 1;
- debug(F101,"canned: cxseen","",cxseen);
- debug(F101," czseen","",czseen);
- return((czseen || cxseen) ? 1 : 0);
- }
-
-
- /* O P E N I -- Open an existing file for input */
-
- int
- openi(name) char *name; {
- int x, filno;
- char *name2;
-
- if (memstr) return(1); /* Just return if file is memory. */
-
- debug(F110,"openi",name,0);
- debug(F101," sndsrc","",sndsrc);
-
- filno = (sndsrc == 0) ? ZSTDIO : ZIFILE; /* ... */
-
- debug(F101," file number","",filno);
-
- if (server && !en_cwd) { /* If running as server */
- zstrip(name,&name2); /* and CWD is disabled... */
- if ( /* check if pathname was included. */
- #ifdef VMS
- zchkpath(name)
- #else
- strcmp(name,name2)
- #endif /* VMS */
- ) {
- tlog(F110,name,"authorization failure",0L);
- debug(F110," openi authorization failure",name,0);
- return(0);
- } else name = name2;
- }
- if (zopeni(filno,name)) { /* Otherwise, try to open it. */
- debug(F110," ok",name,0);
- return(1);
- } else { /* If not found, */
- char xname[100]; /* convert the name */
- zrtol(name,xname); /* to local form and then */
- x = zopeni(filno,xname); /* try opening it again. */
- debug(F101," zopeni","",x);
- if (x) {
- debug(F110," ok",xname,0);
- return(1); /* It worked. */
- } else {
- #ifdef COMMENT
- screen(SCR_EM,0,0l,"Can't open file"); /* It didn't work. */
- #endif /* COMMENT */
- tlog(F110,xname,"could not be opened",0L);
- debug(F110," openi failed",xname,0);
- return(0);
- }
- }
- }
-
- /* O P E N O -- Open a new file for output. */
-
- int
- openo(name,zz,fcb) char *name; struct zattr *zz; struct filinfo *fcb; {
- char *name2;
-
- if (stdouf) /* Receiving to stdout? */
- return(zopeno(ZSTDIO,"",zz,NULL));
-
- debug(F110,"openo: name",name,0);
-
- if (cxseen || czseen || discard) { /* If interrupted, get out before */
- debug(F100," open cancelled","",0); /* destroying existing file. */
- return(1); /* Pretend to succeed. */
- }
- if (server && !en_cwd) { /* If running as server */
- zstrip(name,&name2); /* and CWD is disabled, */
- if (strcmp(name,name2)) { /* check if pathname was included. */
- tlog(F110,name,"authorization failure",0L);
- debug(F110," openo authorization failure",name,0);
- return(0);
- } else name = name2;
- }
-
- if (zopeno(ZOFILE,name,zz,fcb) == 0) { /* Try to open the file */
- debug(F110,"openo failed",name,0);
- tlog(F110,"Failure to open",name,0L);
- return(0);
- } else {
- debug(F110,"openo ok, name",name,0);
- return(1);
- }
- }
-
- /* O P E N T -- Open the terminal for output, in place of a file */
-
- int
- opent(zz) struct zattr *zz; {
- ffc = tfc = 0L;
- if (bsavef) { /* If somehow file mode */
- binary = bsave; /* was saved but not restored, */
- bsavef = 0; /* restore it. */
- debug(F101,"opena restoring binary","",binary);
- }
- bsave = binary;
- bsavef = 1;
- binary = XYFT_T;
- return(zopeno(ZCTERM,"",zz,NULL));
- }
-
- /* C L S I F -- Close the current input file. */
-
- int
- clsif() {
- int x = 0;
- #ifdef datageneral
- if ((local) && (!quiet)) /* Only do this if local & not quiet */
- if (nfils < 1) /* More files to send ... leave it on! */
- connoi_mt();
- #endif /* datageneral */
- if (memstr) { /* If input was memory string, */
- memstr = 0; /* indicate no more. */
- } else x = zclose(ZIFILE); /* else close input file. */
- if (cxseen || czseen) /* If interrupted */
- screen(SCR_ST,ST_INT,0l,""); /* say so */
- else if (discard) /* If I'm refusing */
- screen(SCR_ST,ST_REFU,0l,refused); /* say why */
- else { /* Otherwise */
- fstats(); /* update statistics */
- screen(SCR_ST,ST_OK,0l,""); /* and say transfer was OK */
- }
- hcflg = 0; /* Reset flags */
- *filnam = '\0'; /* and current file name */
- return(x);
- }
-
-
- /* C L S O F -- Close an output file. */
-
- /* Call with disp != 0 if file is to be discarded. */
- /* Returns -1 upon failure to close, 0 or greater on success. */
-
- int
- clsof(disp) int disp; {
- int x;
-
- debug(F101,"clsof disp","",disp);
- if (bsavef) { /* If we saved global file type */
- debug(F101,"clsof restoring binary","",binary);
- binary = bsave; /* restore it */
- bsavef = 0; /* only this once. */
- }
- #ifdef datageneral
- if ((local) && (!quiet)) /* Only do this if local & not quiet */
- connoi_mt();
- #endif /* datageneral */
- cxseen = 0; /* Reset per-file interruption flag */
- if ((x = zclose(ZOFILE)) < 0) { /* Try to close the file */
- tlog(F100,"Failure to close",filnam,0L);
- screen(SCR_ST,ST_ERR,0l,"");
- } else if (disp) { /* Interrupted or refused */
- if (keep == 0) { /* If not keep incomplete files */
- if (*filnam) zdelet(filnam); /* Delete it */
- debug(F100,"Discarded","",0);
- tlog(F100,"Discarded","",0L);
- screen(SCR_ST,ST_DISC,0l,"");
- } else { /* Keep incomplete copy */
- if (ffc) ffc++; /* This is off by one (why?) */
- fstats();
- debug(F100,"Incomplete","",0);
- tlog(F100,"Incomplete","",0L);
- screen(SCR_ST,ST_INC,0l,"");
- }
- } else { /* Nothing wrong, just keep it */
- debug(F100,"Closed","",0); /* and give comforting messages. */
- if (ffc) ffc++; /* Correct off-by-1 error */
- fstats();
- screen(SCR_ST,ST_OK,0l,"");
- }
- return(x); /* Send back zclose() return code. */
- }
-
- #ifdef SUNOS4S5
- tolower(c) char c; { return((c)-'A'+'a'); }
- toupper(c) char c; { return((c)-'a'+'A'); }
- #endif /* SUNOS4S5 */
-
-