OpenSolaris_b135/cmd/bnu/conn.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
#include "uucp.h"
GLOBAL char _Protocol[40] = ""; /* working protocol string */
static char _ProtoSys[40] = ""; /* protocol string from Systems file entry */
static char _ProtoDev[40] = ""; /* protocol string from Devices file entry */
EXTERN char _ProtoCfg[]; /* protocol string from Config file entry */
EXTERN jmp_buf Sjbuf;
EXTERN unsigned expecttime;
GLOBAL int Modemctrl;
/* Parity control during login procedure */
#define P_ZERO 0
#define P_ONE 1
#define P_EVEN 2
#define P_ODD 3
static char par_tab[128];
EXTERN void alarmtr();
static void addProto(), mergeProto(), removeProto();
static void bld_partab();
static char *nextProto();
EXTERN char *findProto();
static void getProto();
EXTERN int getto(); /* make this static when ct uses altconn() */
EXTERN int chat(), rddev(), expect(), wrstr(), wrchr();
EXTERN int processdev(), getdevline(), getsysline(), sysaccess();
EXTERN int clear_hup();
EXTERN char *currsys(), *currdev();
static int finds();
static int wait_for_hangup(), expect_str();
EXTERN void sendthem(), nap();
static int notin(), ifdate(), checkdate(), checktime(), classmatch();
GLOBAL char *Myline = CNULL; /* to force which line will be used */
GLOBAL char *Mytype = CNULL; /* to force selection of specific device type */
GLOBAL int Dologin; /* to force login chat sequence */
/*
* conn - place a telephone call to system and login, etc.
*
* return codes:
* FAIL - connection failed
* >0 - file no. - connect ok
* When a failure occurs, Uerror is set.
*/
GLOBAL int
conn(system)
char *system;
{
int nf, fn;
char *flds[F_MAX+1];
EXTERN void sysreset();
CDEBUG(4, "conn(%s)\n", system);
Uerror = 0;
while ((nf = finds(system, flds, F_MAX)) > 0) {
fn = getto(flds);
CDEBUG(4, "getto ret %d\n", fn);
if (fn < 0)
continue;
#ifdef TIOCSPGRP
{
#ifdef ATTSV
int pgrp = getpgrp();
#else
int pgrp = getpgrp(0);
#endif
ioctl(fn, TIOCSPGRP, &pgrp);
}
#endif
if (Dologin || EQUALS(Progname, "uucico")) {
if (chat(nf - F_LOGIN, flds + F_LOGIN, fn,"","") == SUCCESS) {
sysreset();
return(fn); /* successful return */
}
/* login failed */
DEBUG(6, "close caller (%d)\n", fn);
fd_rmlock(fn);
close(fn);
if (Dc[0] != NULLCHAR) {
DEBUG(6, "delock line (%s)\n", Dc);
}
} else {
sysreset();
return(fn);
}
}
/* finds or getto failed */
sysreset();
CDEBUG(1, "Call Failed: %s\n", UERRORTEXT);
return(FAIL);
}
/*
* getto - connect to remote machine
*
* return codes:
* >0 - file number - ok
* FAIL - failed
*/
GLOBAL int
getto(flds)
char *flds[];
{
char *dev[D_MAX+2], devbuf[BUFSIZ];
int status;
int dcf = -1;
int reread = 0;
int tries = 0; /* count of call attempts - for limit purposes */
EXTERN void devreset();
CDEBUG(1, "Device Type %s wanted\n", flds[F_TYPE]);
Uerror = 0;
while (tries < TRYCALLS) {
if ((status=rddev(flds[F_TYPE], dev, devbuf, D_MAX)) == FAIL) {
if (tries == 0 || ++reread >= TRYCALLS)
break;
devreset();
continue;
}
/* check class, check (and possibly set) speed */
if (classmatch(flds, dev) != SUCCESS) {
DEBUG(7, "Skipping entry in '%s'", currdev());
DEBUG(7, " - class (%s) not wanted.\n", dev[D_CLASS]);
continue;
}
DEBUG(5, "Trying device entry '%s' ", dev[D_LINE]);
DEBUG(5, "from '%s'.\n", currdev());
if ((dcf = processdev(flds, dev)) >= 0)
break;
switch(Uerror) {
case SS_CANT_ACCESS_DEVICE:
case SS_DEVICE_FAILED:
case SS_LOCKED_DEVICE:
case SS_CHAT_FAILED:
break;
default:
tries++;
break;
}
}
devreset(); /* reset devices file(s) */
if (status == FAIL && !Uerror) {
CDEBUG(1, "Requested Device Type Not Found\n%s", "");
Uerror = SS_NO_DEVICE;
}
return(dcf);
}
/*
* classmatch - process 'Any' in Devices and Systems and
* determine the correct speed, or match for ==
*/
static int
classmatch(flds, dev)
char *flds[], *dev[];
{
/* check class, check (and possibly set) speed */
if (EQUALS(flds[F_CLASS], "Any")
&& EQUALS(dev[D_CLASS], "Any")) {
dev[D_CLASS] = DEFAULT_BAUDRATE;
return(SUCCESS);
} else if (EQUALS(dev[D_CLASS], "Any")) {
dev[D_CLASS] = flds[F_CLASS];
return(SUCCESS);
} else if (EQUALS(flds[F_CLASS], "Any") ||
EQUALS(flds[F_CLASS], dev[D_CLASS]))
return(SUCCESS);
else
return(FAIL);
}
/*
* rddev - find and unpack a line from device file for this caller type
* lines starting with whitespace of '#' are comments
*
* return codes:
* >0 - number of arguments in vector - succeeded
* FAIL - EOF
*/
GLOBAL int
rddev(type, dev, buf, devcount)
char *type;
char *dev[];
char *buf;
{
char *commap, d_type[BUFSIZ];
int na;
while (getdevline(buf, BUFSIZ)) {
if (buf[0] == ' ' || buf[0] == '\t'
|| buf[0] == '\n' || buf[0] == '\0' || buf[0] == '#')
continue;
na = getargs(buf, dev, devcount);
ASSERT(na >= D_CALLER, "BAD LINE", buf, na);
if ( strncmp(dev[D_LINE],"/dev/",5) == 0 ) {
/* since cu (altconn()) strips off leading */
/* "/dev/", do the same here. */
strcpy(dev[D_LINE], &(dev[D_LINE][5]) );
}
/* may have ",M" subfield in D_LINE */
Modemctrl = FALSE;
if ( (commap = strchr(dev[D_LINE], ',')) != (char *)NULL ) {
if ( strcmp( commap, ",M") == SAME )
Modemctrl = TRUE;
*commap = '\0';
}
/*
* D_TYPE field may have protocol subfield, which
* must be pulled off before comparing to desired type.
*/
(void)strcpy(d_type, dev[D_TYPE]);
if ((commap = strchr(d_type, ',')) != (char *)NULL )
*commap = '\0';
/* to force the requested device type to be used. */
if ((Mytype != NULL) && (!EQUALS(Mytype, d_type)) )
continue;
/* to force the requested line to be used */
if ((Myline != NULL) && (!EQUALS(Myline, dev[D_LINE])) )
continue;
bsfix(dev); /* replace \X fields */
if (EQUALS(d_type, type)) {
getProto( _ProtoDev, dev[D_TYPE] );
return(na);
}
}
return(FAIL);
}
/*
* finds - set system attribute vector
*
* input:
* fsys - open Systems file descriptor
* sysnam - system name to find
* output:
* flds - attibute vector from Systems file
* fldcount - number of fields in flds
* return codes:
* >0 - number of arguments in vector - succeeded
* FAIL - failed
* Uerror set:
* 0 - found a line in Systems file
* SS_BADSYSTEM - no line found in Systems file
* SS_TIME_WRONG - wrong time to call
*/
static int
finds(sysnam, flds, fldcount)
char *sysnam, *flds[];
{
static char info[BUFSIZ];
int na;
/* format of fields
* 0 name;
* 1 time
* 2 acu/hardwired
* 3 speed
* etc
*/
if (sysnam == 0 || *sysnam == 0 ) {
Uerror = SS_BADSYSTEM;
return(FAIL);
}
while (getsysline(info, sizeof(info))) {
na = getargs(info, flds, fldcount);
bsfix(flds); /* replace \X fields */
if ( !EQUALSN(sysnam, flds[F_NAME], MAXBASENAME))
continue;
/* check if requested Mytype device type */
if ((Mytype != CNULL) &&
(na <= F_TYPE ||
!EQUALSN(flds[F_TYPE], Mytype, strlen(Mytype)))) {
DEBUG(7, "Skipping entry in '%s'", currsys());
DEBUG(7, " - type (%s) not wanted.\n", na > F_TYPE ?
flds[F_TYPE] : "Missing type entry");
continue;
} else {
DEBUG(5, "Trying entry from '%s'", currsys());
DEBUG(5, " - device type %s.\n", na > F_TYPE ?
flds[F_TYPE] : "<Missing type entry>");
}
/* OK if not uucico (ie. ct or cu) or the time is right */
if (!EQUALS(Progname, "uucico") ||
(na > F_TIME && ifdate(flds[F_TIME]))) {
/* found a good entry */
if (na > F_TYPE) {
getProto(_ProtoSys, flds[F_TYPE]);
Uerror = 0;
return(na); /* FOUND OK LINE */
}
DEBUG(5, "Trying entry from '%s'", currsys());
DEBUG(5, " - Missing type entry for <%s>.\n",
flds[F_NAME]);
} else {
CDEBUG(1, "Wrong Time To Call: %s\n", na > F_TIME ?
flds[F_TIME] : "<Missing time entry>");
if (!Uerror)
Uerror = SS_TIME_WRONG;
}
}
if (!Uerror)
Uerror = SS_BADSYSTEM;
return(FAIL);
}
/*
* getProto - get the protocol letters from the input string.
* input:
* str - string from Systems/Devices/Config file,
* a ',' delimits the protocol string
* e.g. ACU,g or DK,d
* output:
* str - the , (if present) will be replaced with NULLCHAR
*
* return: none
*/
static void
getProto(save, str)
char *save;
char *str;
{
char *p;
*save = NULLCHAR;
if ( (p=strchr(str, ',')) != NULL) {
*p = NULLCHAR;
(void) strcpy(save, p+1);
DEBUG(7, "Protocol = %s\n", save);
}
return;
}
/*
* check for a specified protocol selection string
* return:
* protocol string pointer
* NULL if none specified for LOGNAME
*/
GLOBAL char *
protoString(valid)
char *valid;
{
char *save;
save =strdup(valid);
_Protocol[0] = '\0';
if ( _ProtoSys[0] != '\0' )
addProto(_ProtoSys, valid);
if ( _ProtoDev[0] != '\0' )
addProto(_ProtoDev, valid);
if ( _ProtoCfg[0] != '\0' )
addProto(_ProtoCfg, valid);
if ( _Protocol[0] == '\0' ) {
(void) strcpy(valid, save);
(void) strcpy(_Protocol, save);
}
return(_Protocol[0] == NULLCHAR ? NULL : _Protocol);
}
/*
* addProto
*
* Verify that the desired protocols from the Systems and Devices file
* have been compiled into this application.
*
* desired - list of desired protocols
* valid - list of protocols that are compiled in.
*/
static void
addProto (desired, valid)
char *desired;
char *valid;
{
char *protoPtr;
char *wantPtr;
if ( *desired == '\0' )
return;
if ( *(protoPtr = _Protocol) != NULLCHAR ) {
while ( *(protoPtr = nextProto(protoPtr)) != NULLCHAR ) {
if ( *(wantPtr = findProto(desired, *protoPtr)) == NULLCHAR ) {
removeProto(valid, *protoPtr);
removeProto(protoPtr, *protoPtr);
} else {
mergeProto(protoPtr, wantPtr);
protoPtr++;
}
}
} else {
wantPtr = desired;
while ( *(wantPtr = nextProto(wantPtr)) != NULLCHAR ) {
if ( *(findProto(valid, *wantPtr)) != NULLCHAR ) {
mergeProto(protoPtr, wantPtr);
}
wantPtr++;
}
}
if ( *(protoPtr = _Protocol) != NULLCHAR ) {
while ( *(protoPtr = nextProto(protoPtr)) != NULLCHAR )
*(valid++) = *(protoPtr++);
*valid = NULLCHAR;
}
return;
}
/*
* mergeProto
*
* input
* char *tostring, *fromstring;
*/
static void
mergeProto(tostring, fromstring)
char *tostring, *fromstring;
{
char buffer[BUFSIZ];
int length;
while ( *(tostring = nextProto(tostring)) != NULLCHAR ) {
if ( *tostring == *fromstring )
break;
else
tostring++;
}
if ( *tostring == NULLCHAR ) {
length = nextProto(fromstring + 1) - fromstring;
(void) strncpy(tostring, fromstring, length);
*(tostring + length) = NULLCHAR;
} else {
tostring++;
fromstring++;
if ( (*tostring != '(') && (*fromstring == '(') ) {
(void) strcpy(buffer, tostring);
length = nextProto(fromstring) - fromstring;
(void) strncpy(tostring, fromstring, length);
(void) strcpy(tostring+length, buffer);
}
}
return;
}
/*
* removeProto
*
* char *old
* char letter
*
* return
* none
*/
static void
removeProto(string, letter)
char *string, letter;
{
while ( *(string = nextProto(string)) != NULLCHAR ) {
if ( *string == letter )
(void) strcpy(string, nextProto(string+1));
else
string++;
}
}
/*
* nextProto
* char *string;
* return
* char * to next non-parameter letter
*/
static char *
nextProto(string)
char *string;
{
if ( *string == '(' )
while ( *string != NULLCHAR )
if ( *(string++) == ')' )
break;
return(string);
}
/*
* findProto
* char *desired,
* char protoPtr;
* return
* char *pointer to found or string terminating NULLCHAR
*/
GLOBAL char *
findProto(string, letter)
char *string;
char letter;
{
while ( *(string = nextProto(string)) != NULLCHAR )
if ( *string == letter )
break;
else
string++;
return(string);
}
/*
* chat - do conversation
* input:
* nf - number of fields in flds array
* flds - fields from Systems file
* fn - write file number
* phstr1 - phone number to replace \D
* phstr2 - phone number to replace \T
*
* return codes: 0 | FAIL
*/
GLOBAL int
chat(nf, flds, fn, phstr1, phstr2)
char *flds[], *phstr1, *phstr2;
int nf, fn;
{
char *want, *altern;
int k, ok;
for (k = 0; k < nf; k += 2) {
want = flds[k];
ok = FAIL;
while (ok != 0) {
altern = index(want, '-');
if (altern != NULL)
*altern++ = NULLCHAR;
ok = expect(want, fn);
if (ok == 0)
break;
if (altern == NULL) {
Uerror = SS_LOGIN_FAILED;
logent(UERRORTEXT, "FAILED");
return(FAIL);
}
want = index(altern, '-');
if (want != NULL)
*want++ = NULLCHAR;
sendthem(altern, fn, phstr1, phstr2);
}
sleep(2);
if (flds[k+1])
sendthem(flds[k+1], fn, phstr1, phstr2);
}
return(0);
}
#define MR 1000
/*
* expect(str, fn) look for expected string w/ possible special chars
*
* return codes:
* 0 - found
* FAIL - too many characters read
* some character - timed out
*/
GLOBAL int
expect(str, fn)
char *str;
int fn;
{
char *bptr, *sptr;
char buf[BUFSIZ];
bptr = buf;
for (sptr = str; *sptr; sptr++) {
if (*sptr == '\\') {
switch (*++sptr) {
case 'H':
*bptr++ = '\0';
if (expect_str(buf, fn) == FAIL) {
return (FAIL);
}
if (wait_for_hangup(fn) == FAIL) {
return (FAIL);
}
bptr = buf;
continue;
case '\\':
*bptr++ = '\\';
continue;
default:
*bptr++ = '\\';
*bptr++ = *sptr;
continue;
}
} else
*bptr++ = *sptr;
}
*bptr = '\0';
if (expect_str(buf, fn) == FAIL) {
return (FAIL);
}
return (0);
}
/*
* expect_str(str, fn) look for expected string, w/ no special chars
*
* return codes:
* 0 - found
* FAIL - too many characters read
* some character - timed out
*/
GLOBAL int
expect_str(str, fn)
char *str;
int fn;
{
static char rdvec[MR];
char *rp = rdvec;
int kr, c;
char nextch;
*rp = 0;
CDEBUG(4, "expect: (%s", "");
for (c=0; (kr=str[c]) != 0 ; c++)
if (kr < 040) {
CDEBUG(4, "^%c", kr | 0100);
} else
CDEBUG(4, "%c", kr);
CDEBUG(4, ")\n%s", "");
if (EQUALS(str, "\"\"")) {
CDEBUG(4, "got it\n%s", "");
return(0);
}
if (*str== '\0') {
return(0);
}
if (setjmp(Sjbuf)) {
return (FAIL);
}
(void) signal(SIGALRM, alarmtr);
alarm(expecttime);
while (notin(str, rdvec)) {
errno = 0;
kr = (*Read)(fn, &nextch, 1);
if (kr <= 0) {
alarm(0);
CDEBUG(4, "lost line errno - %d\n", errno);
logent("LOGIN", "LOST LINE");
return(FAIL);
}
c = nextch & 0177;
CDEBUG(4, "%s", c < 040 ? "^" : "");
CDEBUG(4, "%c", c < 040 ? c | 0100 : c);
if ((*rp = nextch & 0177) != NULLCHAR)
rp++;
if (rp >= rdvec + MR) {
CDEBUG(4, "enough already\n%s", "");
alarm(0);
return(FAIL);
}
*rp = NULLCHAR;
}
alarm(0);
CDEBUG(4, "got it\n%s", "");
return(0);
}
/*
* alarmtr() - catch alarm routine for "expect".
*/
/*ARGSUSED*/
GLOBAL void
alarmtr(sig)
int sig;
{
CDEBUG(6, "timed out\n%s", "");
longjmp(Sjbuf, 1);
}
/*
* wait_for_hangup() - wait for a hangup to occur on the given device
*/
int
wait_for_hangup(dcf)
int dcf;
{
int rval;
char buff[BUFSIZ];
CDEBUG(4, "Waiting for hangup\n%s", "");
while((rval = read(dcf, buff, BUFSIZ)) > 0);
if (rval < 0) {
return (FAIL);
}
CDEBUG(4, "Received hangup\n%s", "");
if (clear_hup(dcf) != SUCCESS) {
CDEBUG(4, "Unable to clear hup on device\n%s", "");
return (FAIL);
}
return (SUCCESS);
}
/*
* sendthem(str, fn, phstr1, phstr2) send line of chat sequence
* char *str, *phstr;
*
* return codes: none
*/
#define FLUSH() {\
if ((bptr - buf) > 0)\
if (wrstr(fn, buf, bptr - buf, echocheck) != SUCCESS)\
goto err;\
bptr = buf;\
}
GLOBAL void
sendthem(str, fn, phstr1, phstr2)
char *str, *phstr1, *phstr2;
int fn;
{
int sendcr = 1, echocheck = 0;
char *sptr, *bptr;
char buf[BUFSIZ];
struct termio ttybuf;
static int p_init = 0;
if (!p_init) {
p_init++;
bld_partab(P_EVEN);
}
/* should be EQUALS, but previous versions had BREAK n for integer n */
if (PREFIX("BREAK", str)) {
/* send break */
CDEBUG(5, "BREAK\n%s", "");
(*genbrk)(fn);
return;
}
if (PREFIX("STTY=", str)) {
CDEBUG(5, "STTY %s\n", str+5);
setmode(str+5, fn);
return;
}
if (EQUALS(str, "EOT")) {
CDEBUG(5, "EOT\n%s", "");
bptr = buf;
for (sptr = EOTMSG; *sptr; sptr++)
*bptr++ = par_tab[*sptr&0177];
(void) (*Write)(fn, buf, bptr - buf);
return;
}
/* Set parity as needed */
if (EQUALS(str, "P_ZERO")) {
bld_partab(P_ZERO);
return;
}
if (EQUALS(str, "P_ONE")) {
bld_partab(P_ONE);
return;
}
if (EQUALS(str, "P_EVEN")) {
bld_partab(P_EVEN);
return;
}
if (EQUALS(str, "P_ODD")) {
bld_partab(P_ODD);
return;
}
if (EQUALS(str, "\"\"")) {
CDEBUG(5, "\"\"\n%s", "");
str += 2;
}
bptr = buf;
CDEBUG(5, "sendthem (%s", "");
for (sptr = str; *sptr; sptr++) {
if (*sptr == '\\') {
switch(*++sptr) {
/* adjust switches */
case 'c': /* no CR after string */
FLUSH();
if (sptr[1] == NULLCHAR) {
CDEBUG(5, "<NO CR>%s", "");
sendcr = 0;
} else
CDEBUG(5, "<NO CR IGNORED>\n%s", "");
continue;
/* stash in buf and continue */
case 'D': /* raw phnum */
strcpy(bptr, phstr1);
bptr += strlen(bptr);
continue;
case 'T': /* translated phnum */
strcpy(bptr, phstr2);
bptr += strlen(bptr);
continue;
case 'N': /* null */
*bptr++ = 0;
continue;
case 's': /* space */
*bptr++ = ' ';
continue;
case '\\': /* backslash escapes itself */
*bptr++ = *sptr;
continue;
default: /* send the backslash */
*bptr++ = '\\';
*bptr++ = *sptr;
continue;
/* flush buf, perform action, and continue */
case 'E': /* echo check on */
FLUSH();
CDEBUG(5, "ECHO CHECK ON\n%s", "");
echocheck = 1;
continue;
case 'e': /* echo check off */
FLUSH();
CDEBUG(5, "ECHO CHECK OFF\n%s", "");
echocheck = 0;
continue;
case 'd': /* sleep briefly */
FLUSH();
CDEBUG(5, "DELAY\n%s", "");
sleep(2);
continue;
case 'p': /* pause momentarily */
FLUSH();
CDEBUG(5, "PAUSE\n%s", "");
nap(HZ/4); /* approximately 1/4 second */
continue;
case 'K': /* inline break */
FLUSH();
CDEBUG(5, "BREAK\n%s", "");
(*genbrk)(fn);
continue;
case 'M': /* modem control - set CLOCAL */
case 'm': /* no modem control - clear CLOCAL */
FLUSH();
CDEBUG(5, ")\n%s CLOCAL ",
(*sptr == 'M' ? "set" : "clear"));
#ifdef ATTSVTTY
if ( (*Ioctl)(fn, TCGETA, &ttybuf) != 0 ) {
CDEBUG(5, "ignored. TCGETA failed, errno %d", errno);
} else {
if (*sptr == 'M')
ttybuf.c_cflag |= CLOCAL;
else
ttybuf.c_cflag &= ~CLOCAL;
if ( (*Ioctl)(fn, TCSETAW, &ttybuf) != 0 )
CDEBUG(5, "failed. TCSETAW failed, errno %d", errno);
}
#endif
CDEBUG(5, "\n%s", "");
continue;
}
} else
*bptr++ = *sptr;
}
if (sendcr)
*bptr++ = '\r';
if ( (bptr - buf) > 0 )
(void) wrstr(fn, buf, bptr - buf, echocheck);
err:
CDEBUG(5, ")\n%s", "");
return;
}
/*
* generate parity table for use by sendthem.
*/
static void
bld_partab(type)
int type;
{
int i, j, n;
for (i = 0; i < 128; i++) {
n = 0;
for (j = i&0177; j; j = (j-1)&j)
n++;
par_tab[i] = i;
if (type == P_ONE
|| (type == P_EVEN && (n&01) != 0)
|| (type == P_ODD && (n&01) == 0))
par_tab[i] |= 0200;
}
}
#undef FLUSH
GLOBAL int
wrstr(fn, buf, len, echocheck)
char *buf;
{
int i;
char dbuf[BUFSIZ], *dbptr = dbuf;
if (echocheck)
return(wrchr(fn, buf, len));
if (Debug >= 5) {
if (sysaccess(ACCESS_SYSTEMS) == 0) { /* Systems file access ok */
for (i = 0; i < len; i++) {
*dbptr = buf[i];
if (*dbptr < 040) {
*dbptr++ = '^';
*dbptr = buf[i] | 0100;
}
dbptr++;
}
*dbptr = 0;
} else
strcpy(dbuf, "????????");
CDEBUG(5, "%s", dbuf);
}
dbptr = dbuf;
for (i = 0; i < len; i++)
*dbptr++ = par_tab[buf[i]&0177];
if ((*Write)(fn, dbuf, len) != len)
return(FAIL);
return(SUCCESS);
}
GLOBAL int
wrchr(fn, buf, len)
int fn;
char *buf;
{
int i, saccess;
char cin, cout;
saccess = (sysaccess(ACCESS_SYSTEMS) == 0); /* protect Systems file */
if (setjmp(Sjbuf))
return(FAIL);
(void) signal(SIGALRM, alarmtr);
for (i = 0; i < len; i++) {
cout = buf[i]&0177;
if (saccess) {
CDEBUG(5, "%s", cout < 040 ? "^" : "");
CDEBUG(5, "%c", cout < 040 ? cout | 0100 : cout);
} else
CDEBUG(5, "?%s", "");
if (((*Write)(fn, &par_tab[cout], 1)) != 1)
return(FAIL);
do {
(void) alarm(expecttime);
if ((*Read)(fn, &cin, 1) != 1)
return(FAIL);
(void) alarm(0);
cin &= 0177;
if (saccess) {
CDEBUG(5, "%s", cin < 040 ? "^" : "");
CDEBUG(5, "%c", cin < 040 ? cin | 0100 : cin);
} else
CDEBUG(5, "?%s", "");
} while (cout != cin);
}
return(SUCCESS);
}
/*
* notin(sh, lg) check for occurrence of substring "sh"
* char *sh, *lg;
*
* return codes:
* 0 - found the string
* 1 - not in the string
*/
static int
notin(sh, lg)
char *sh, *lg;
{
while (*lg != NULLCHAR) {
if (PREFIX(sh, lg))
return(0);
else
lg++;
}
return(1);
}
/*
* ifdate(s)
* char *s;
*
* ifdate - this routine will check a string (s)
* like "MoTu0800-1730" to see if the present
* time is within the given limits.
*
* SIDE EFFECT - Retrytime is set to number following ";"
* SIDE EFFECT - MaxGrade is set to character following "/"
*
* if a grade is specified, iswrk() is consulted, so that we don't
* place calls when there's only low priority work. this will appear
* as a "wrong time to call" in the status file. sorry.
*
* String alternatives:
* Wk - Mo thru Fr
* zero or one time means all day
* Any - any day
*
* return codes:
* 0 - not within limits, or grade too low
* 1 - within limits
*/
static int
ifdate(s)
char *s;
{
char *r;
#ifdef MAXGRADE
char *m, grade;
#endif
struct tm *tp;
time_t clock;
int t__now;
time(&clock);
tp = localtime(&clock);
t__now = tp->tm_hour * 100 + tp->tm_min; /* "navy" time */
/*
* pick up retry time for failures and max grade
* global variables Retrytime and MaxGrade are set here
*/
r = strrchr(s, ';');
/* set retry time */
if (r != NULL) {
if (isdigit(r[1])) {
if (sscanf(r+1, "%ld", &Retrytime) < 1)
Retrytime = 5; /* 5 minutes is error default */
DEBUG(5, "Retry time set to %d minutes\n", Retrytime);
Retrytime *= 60; /* convert to seconds */
*r = NULLCHAR; /* blow away retry time field */
}
} else
Retrytime = 0; /* use exponential backoff */
#ifdef MAXGRADE
/* set grade */
MaxGrade = NULLCHAR; /* default */
m = strrchr(s, '/');
if (m != NULL) {
if (isalnum(m[1]))
MaxGrade = m[1]; /* you asked for it! */
*m = NULLCHAR; /* blow away max grade field */
DEBUG(5, "Max Grade set to %c\n", MaxGrade);
}
/* test grade */
if (MaxGrade != NULLCHAR) {
grade = iswrk(CNULL);
if (grade == NULLCHAR || MaxGrade < grade) {
DEBUG(4, "No work of grade %c -- no call\n", MaxGrade);
return(0);
}
}
#endif /* MAXGRADE */
while (checkdate(s, tp, t__now) == 0) {
s = strchr(s, ',');
if (s == CNULL)
return(0);
s++;
}
return(1);
}
/* worker function for ifdate() */
static int
checkdate(s, tp, t__now)
char *s;
struct tm *tp;
int t__now;
{
static char *days[] = {
"Su", "Mo", "Tu", "We", "Th", "Fr", "Sa", 0
};
int i;
/*
* check day of week
*/
while (isalpha(*s)) {
if (PREFIX("Any", s))
return(checktime(s, t__now));
if (PREFIX("Wk", s) && tp->tm_wday >= 1 && tp->tm_wday <= 5)
return(checktime(s, t__now));
for (i = 0; days[i]; i++)
if (PREFIX(days[i], s) && tp->tm_wday == i)
return(checktime(s, t__now));
s++;
}
return(0); /* day match failed */
}
/* day match ok -- check time */
static int
checktime(s, t__now)
char *s;
int t__now;
{
int t__low, t__high;
while (isalpha(*s)) /* flush day stuff */
s++;
if ((sscanf(s, "%d-%d", &t__low, &t__high) < 2))
return(1); /* time match ok (default) */
if (t__low == t__high)
return(1);
/* 0000 crossover? */
if (t__low < t__high) {
if (t__low <= t__now && t__now <= t__high)
return(1);
} else {
if (t__low <= t__now || t__now <= t__high)
return(1);
}
return(0);
}
/*
* char *
* fdig(cp) find first digit in string
*
* return - pointer to first digit in string or end of string
*/
GLOBAL char *
fdig(cp)
char *cp;
{
char *c;
for (c = cp; *c; c++)
if (*c >= '0' && *c <= '9')
break;
return(c);
}
#ifdef FASTTIMER
/* Sleep in increments of 60ths of second. */
GLOBAL void
nap (time)
int time;
{
static int fd;
if (fd == 0)
fd = open (FASTTIMER, 0);
(void) (*Read)(fd, 0, time);
return;
}
#endif /* FASTTIMER */
#if defined(BSD4_2) || defined(ATTSVR4)
/* nap(n) -- sleep for 'n' ticks of 1/60th sec each. */
/* This version uses the select system call */
GLOBAL void
nap(n)
unsigned n;
{
struct timeval tv;
if (n==0)
return;
tv.tv_sec = n/60;
tv.tv_usec = ((n%60)*1000000L)/60;
(void) select(32, 0, 0, 0, &tv);
return;
}
#endif /* BSD4_2 || ATTSVR4 */
#ifdef NONAP
/* nap(n) where n is ticks
*
* loop using n/HZ part of a second
* if n represents more than 1 second, then
* use sleep(time) where time is the equivalent
* seconds rounded off to full seconds
* NOTE - this is a rough approximation and chews up
* processor resource!
*/
GLOBAL void
nap(n)
unsigned n;
{
struct tms tbuf;
long endtime;
int i;
if (n > HZ) {
/* > second, use sleep, rounding time */
sleep( (int) (((n)+HZ/2)/HZ) );
return;
}
/* use timing loop for < 1 second */
endtime = times(&tbuf) + 3*n/4; /* use 3/4 because of scheduler! */
while (times(&tbuf) < endtime) {
for (i=0; i<1000; i++, (void) (i*i))
;
}
return;
}
#endif /* NONAP */
/*
* altconn - place a telephone call to system
* from cu when telephone number or direct line used
*
* return codes:
* FAIL - connection failed
* >0 - file no. - connect ok
* When a failure occurs, Uerror is set.
*/
GLOBAL int
altconn(call)
struct call *call;
{
int fn = FAIL;
char *alt[7];
EXTERN char *Myline;
alt[F_NAME] = "dummy"; /* to replace the Systems file fields */
alt[F_TIME] = "Any"; /* needed for getto(); [F_TYPE] and */
alt[F_TYPE] = ""; /* [F_PHONE] assignment below */
alt[F_CLASS] = call->speed;
alt[F_PHONE] = "";
alt[F_LOGIN] = "";
alt[6] = NULL;
CDEBUG(4,"altconn called\r\n%s", "");
/* cu -l dev ... */
/* if is "/dev/device", strip off "/dev/" because must */
/* exactly match entries in Devices file, which usually */
/* omit the "/dev/". if doesn't begin with "/dev/", */
/* either they've omitted the "/dev/" or it's a non- */
/* standard path name. in either case, leave it as is */
if(call->line != NULL ) {
if ( strncmp(call->line, "/dev/", 5) == 0 ) {
Myline = (call->line + 5);
} else {
Myline = call->line;
}
}
/* cu ... telno */
if(call->telno != NULL) {
alt[F_PHONE] = call->telno;
alt[F_TYPE] = "ACU";
} else {
/* cu direct line */
alt[F_TYPE] = "Direct";
}
if (call->type != NULL)
alt[F_TYPE] = call->type;
fn = getto(alt);
CDEBUG(4, "getto ret %d\n", fn);
return(fn);
}