void
try_remote(const char *host, const char *path, const char *entry)
{
const char *paths[] = { "/etc/remote", NULL, NULL };
char *cp, *s;
long l;
int error;
if (path != NULL) {
paths[0] = path;
paths[1] = "/etc/remote";
}
if (entry != NULL && cgetset(entry) != 0)
cu_errx(1, "cgetset failed");
error = cgetent(&cp, (char**)paths, (char*)host);
if (error < 0) {
switch (error) {
case -1:
cu_errx(1, "unknown host %s", host);
case -2:
cu_errx(1, "can't open remote file");
case -3:
cu_errx(1, "loop in remote file");
default:
cu_errx(1, "unknown error in remote file");
}
}
if (line_path == NULL && cgetstr(cp, "dv", &s) >= 0)
line_path = s;
if (line_speed == -1 && cgetnum(cp, "br", &l) >= 0) {
if (l < 0 || l > INT_MAX)
cu_errx(1, "speed out of range");
line_speed = l;
}
}
/*
* Command parser.
*/
static void
cmdscanner(void)
{
register struct cmd *c;
static EditLine *el;
static History *hist;
HistEvent he;
size_t len;
int num;
const char *bp;
num = 0;
bp = NULL;
el = NULL;
hist = NULL;
for (;;) {
if (fromatty) {
if (!el) {
el = el_init("lpc", stdin, stdout, stderr);
hist = history_init();
history(hist, &he, H_SETSIZE, 100);
el_set(el, EL_HIST, history, hist);
el_set(el, EL_EDITOR, "emacs");
el_set(el, EL_PROMPT, lpc_prompt);
el_set(el, EL_SIGNAL, 1);
el_source(el, NULL);
/*
* EditLine init may call 'cgetset()' to set a
* capability-db meant for termcap (eg: to set
* terminal type 'xterm'). Reset that now, or
* that same db-information will be used for
* printcap (giving us an "xterm" printer, with
* all kinds of invalid capabilities...).
*/
cgetset(NULL);
}
if ((bp = el_gets(el, &num)) == NULL || num == 0)
quit(0, NULL);
len = (num > MAX_CMDLINE - 1) ? MAX_CMDLINE - 1 : num;
memcpy(cmdline, bp, len);
cmdline[len] = 0;
history(hist, &he, H_ENTER, bp);
} else {
if (fgets(cmdline, MAX_CMDLINE, stdin) == NULL)
quit(0, NULL);
if (cmdline[0] == 0 || cmdline[0] == '\n')
break;
}
makeargv();
if (margc == 0)
continue;
if (el != NULL && el_parse(el, margc, margv) != -1)
continue;
c = getcmd(margv[0]);
if (c == (struct cmd *)-1) {
printf("?Ambiguous command\n");
continue;
}
if (c == NULL) {
printf("?Invalid command\n");
continue;
}
if ((c->c_opts & LPC_PRIVCMD) && getuid() &&
ingroup(LPR_OPER) == 0) {
printf("?Privileged command\n");
continue;
}
/*
* Two different commands might have the same generic rtn
* (eg: "clean" and "tclean"), and just use different
* handler routines for distinct command-setup. The handler
* routine might also be set on a generic routine for
* initial parameter processing.
*/
if (c->c_generic != NULL)
generic(c->c_generic, c->c_opts, c->c_handler,
margc, margv);
else
(*c->c_handler)(margc, margv);
}
}
static void
getremcap(char *host)
{
char **p, ***q;
char *bp;
char *rempath;
int stat;
rempath = getenv("REMOTE");
if (rempath != NULL) {
if (*rempath != '/')
/* we have an entry */
cgetset(rempath);
else { /* we have a path */
db_array[1] = rempath;
db_array[2] = _PATH_REMOTE;
}
}
if ((stat = cgetent(&bp, db_array, host)) < 0) {
if (DV ||
(host[0] == '/' && access(DV = host, R_OK | W_OK) == 0)) {
CU = DV;
HO = host;
HW = 1;
DU = 0;
if (!BR)
BR = DEFBR;
FS = BUFSIZ;
return;
}
switch(stat) {
case -1:
warnx("unknown host %s", host);
break;
case -2:
warnx("can't open host description file");
break;
case -3:
warnx("possible reference loop in host description file");
break;
}
exit(3);
}
for (p = capstrings, q = caps; *p != NULL; p++, q++)
if (**q == NULL)
cgetstr(bp, *p, *q);
if (!BR && (cgetnum(bp, "br", &BR) == -1))
BR = DEFBR;
if (cgetnum(bp, "fs", &FS) == -1)
FS = BUFSIZ;
if (DU < 0)
DU = 0;
else
DU = cgetflag("du");
if (DV == NULL) {
fprintf(stderr, "%s: missing device spec\n", host);
exit(3);
}
if (DU && CU == NULL)
CU = DV;
if (DU && PN == NULL) {
fprintf(stderr, "%s: missing phone number\n", host);
exit(3);
}
HD = cgetflag("hd");
/*
* This effectively eliminates the "hw" attribute
* from the description file
*/
if (!HW)
HW = (CU == NULL) || (DU && equal(DV, CU));
HO = host;
/*
If login script, verify access
*/
if (LI != NULL) {
if (*LI == '~')
(void) expand_tilde (&LI, NULL);
if (access (LI, F_OK | X_OK) != 0) {
printf("tip (warning): can't open login script \"%s\"\n", LI);
LI = NULL;
}
}
/*
If logout script, verify access
*/
if (LO != NULL) {
if (*LO == '~')
(void) expand_tilde (&LO, NULL);
if (access (LO, F_OK | X_OK) != 0) {
printf("tip (warning): can't open logout script \"%s\"\n", LO);
LO = NULL;
}
}
/*
* see if uppercase mode should be turned on initially
*/
if (cgetflag("ra"))
boolean(value(RAISE)) = 1;
if (cgetflag("ec"))
boolean(value(ECHOCHECK)) = 1;
if (cgetflag("be"))
boolean(value(BEAUTIFY)) = 1;
if (cgetflag("nb"))
boolean(value(BEAUTIFY)) = 0;
if (cgetflag("sc"))
boolean(value(SCRIPT)) = 1;
if (cgetflag("tb"))
boolean(value(TABEXPAND)) = 1;
if (cgetflag("vb"))
boolean(value(VERBOSE)) = 1;
if (cgetflag("nv"))
boolean(value(VERBOSE)) = 0;
if (cgetflag("ta"))
boolean(value(TAND)) = 1;
if (cgetflag("nt"))
boolean(value(TAND)) = 0;
if (cgetflag("rw"))
boolean(value(RAWFTP)) = 1;
if (cgetflag("hd"))
boolean(value(HALFDUPLEX)) = 1;
if (RE == NULL)
RE = (char *)"tip.record";
if (EX == NULL)
EX = (char *)"\t\n\b\f";
if (ES != NULL)
vstring("es", ES);
if (FO != NULL)
vstring("fo", FO);
if (PR != NULL)
vstring("pr", PR);
if (RC != NULL)
vstring("rc", RC);
if (cgetnum(bp, "dl", &DL) == -1)
DL = 0;
if (cgetnum(bp, "cl", &CL) == -1)
CL = 0;
if (cgetnum(bp, "et", &ET) == -1)
ET = 10;
}
/*
* Get an entry for terminal name in buffer _nc_termcap from the termcap
* file.
*/
int
_nc_read_termcap_entry(const char *const name, TERMTYPE *const tp)
{
ENTRY *ep;
char *p;
char *cp;
char *dummy;
char **fname;
char *home;
int i;
char pathbuf[PBUFSIZ]; /* holds raw path of filenames */
char *pathvec[PVECSIZ]; /* to point to names in pathbuf */
char **pvec; /* holds usable tail of path vector */
char *termpath;
_nc_termcap[0] = '\0'; /* in case */
dummy = NULL;
fname = pathvec;
pvec = pathvec;
p = pathbuf;
cp = getenv("TERMCAP");
/*
* TERMCAP can have one of two things in it. It can be the
* name of a file to use instead of /etc/termcap. In this
* case it better start with a "/". Or it can be an entry to
* use so we don't have to read the file. In this case it
* has to already have the newlines crunched out. If TERMCAP
* does not hold a file name then a path of names is searched
* instead. The path is found in the TERMPATH variable, or
* becomes "$HOME/.termcap /etc/termcap" if no TERMPATH exists.
*/
if (!cp || *cp != '/') { /* no TERMCAP or it holds an entry */
if ( (termpath = getenv("TERMPATH")) )
strncpy(pathbuf, termpath, PBUFSIZ);
else {
if ( (home = getenv("HOME")) ) {/* set up default */
strncpy(pathbuf, home, PBUFSIZ - 1); /* $HOME first */
pathbuf[PBUFSIZ - 2] = '\0'; /* -2 because we add a slash */
p += strlen(pathbuf); /* path, looking in */
*p++ = '/';
} /* if no $HOME look in current directory */
strncpy(p, _PATH_DEF, PBUFSIZ - (p - pathbuf));
}
}
else /* user-defined name in TERMCAP */
strncpy(pathbuf, cp, PBUFSIZ); /* still can be tokenized */
/* For safety */
if (issetugid())
strcpy(pathbuf, _PATH_DEF_SEC);
pathbuf[PBUFSIZ - 1] = '\0';
*fname++ = pathbuf; /* tokenize path into vector of names */
while (*++p)
if (*p == ' ' || *p == ':') {
*p = '\0';
while (*++p)
if (*p != ' ' && *p != ':')
break;
if (*p == '\0')
break;
*fname++ = p;
if (fname >= pathvec + PVECSIZ) {
fname--;
break;
}
}
*fname = (char *) 0; /* mark end of vector */
if (cp && *cp && *cp != '/')
if (cgetset(cp) < 0)
return(-2);
i = cgetent(&dummy, pathvec, (char *)name);
if (i == 0) {
char *pd, *ps, *tok, *s, *tcs;
size_t len;
pd = _nc_termcap;
ps = dummy;
if ((tok = strchr(ps, ':')) == NULL) {
len = strlen(ps);
if (len >= TBUFSIZ)
i = -1;
else
strcpy(pd, ps);
goto done;
}
len = tok - ps + 1;
if (pd + len + 1 - _nc_termcap >= TBUFSIZ) {
i = -1;
goto done;
}
memcpy(pd, ps, len);
ps += len;
pd += len;
*pd = '\0';
tcs = pd - 1;
for (;;) {
while ((tok = strsep(&ps, ":")) != NULL &&
*(tok - 2) != '\\' &&
(*tok == '\0' || *tok == '\\' || !isgraph(UChar(*tok))))
;
if (tok == NULL)
break;
for (s = tcs; s != NULL && s[1] != '\0';
s = strchr(s, ':')) {
s++;
if (s[0] == tok[0] && s[1] == tok[1])
goto skip_it;
}
len = strlen(tok);
if (pd + len + 1 - _nc_termcap >= TBUFSIZ) {
i = -1;
break;
}
memcpy(pd, tok, len);
pd += len;
*pd++ = ':';
*pd = '\0';
skip_it: ;
}
}
done:
if (dummy)
free(dummy);
/*
* From here on is ncurses-specific glue code
*/
if (i < 0)
return(TGETENT_ERR);
_nc_set_source("TERMCAP");
_nc_read_entry_source((FILE *)NULL, _nc_termcap, FALSE, TRUE, NULLHOOK);
if (_nc_head == (ENTRY *)NULL)
return(TGETENT_ERR);
/* resolve all use references */
_nc_resolve_uses2(TRUE, FALSE);
for_entry_list(ep)
if (_nc_name_match(ep->tterm.term_names, name, "|:"))
{
/*
* Make a local copy of the terminal capabilities, delinked
* from the list.
*/
memcpy(tp, &ep->tterm, sizeof(TERMTYPE));
_nc_delink_entry(_nc_head, &(ep->tterm));
free(ep);
_nc_free_entries(_nc_head);
_nc_head = _nc_tail = NULL; /* do not reuse! */
return TGETENT_YES; /* OK */
}
_nc_free_entries(_nc_head);
_nc_head = _nc_tail = NULL; /* do not reuse! */
return(TGETENT_NO); /* not found */
}
static void
getremcap(char *host)
{
char **p, ***q, *bp, *rempath;
int stat;
rempath = getenv("REMOTE");
if (rempath != NULL) {
if (*rempath != '/')
/* we have an entry */
cgetset(rempath);
else { /* we have a path */
db_array[1] = rempath;
db_array[2] = _PATH_REMOTE;
}
}
if ((stat = cgetent(&bp, db_array, host)) < 0) {
if ((DV != NULL) ||
(host[0] == '/' && access(DV = host, R_OK | W_OK) == 0)) {
CU = DV;
HO = host;
HW = 1;
DU = 0;
if (!BR)
BR = DEFBR;
FS = DEFFS;
return;
}
switch (stat) {
case -1:
fprintf(stderr, "%s: unknown host %s\n", __progname,
host);
break;
case -2:
fprintf(stderr,
"%s: can't open host description file\n",
__progname);
break;
case -3:
fprintf(stderr,
"%s: possible reference loop in host description file\n", __progname);
break;
}
exit(3);
}
for (p = capstrings, q = caps; *p != NULL; p++, q++)
if (**q == NULL)
cgetstr(bp, *p, *q);
if (!BR && (cgetnum(bp, "br", &BR) == -1))
BR = DEFBR;
if (!LD && (cgetnum(bp, "ld", &LD) == -1))
LD = TTYDISC;
if (cgetnum(bp, "fs", &FS) == -1)
FS = DEFFS;
if (DU < 0)
DU = 0;
else
DU = cgetflag("du");
if (DV == NOSTR) {
fprintf(stderr, "%s: missing device spec\n", host);
exit(3);
}
if (DU && CU == NOSTR)
CU = DV;
if (DU && PN == NOSTR) {
fprintf(stderr, "%s: missing phone number\n", host);
exit(3);
}
if (DU && AT == NOSTR) {
fprintf(stderr, "%s: missing acu type\n", host);
exit(3);
}
HD = cgetflag("hd");
/*
* This effectively eliminates the "hw" attribute
* from the description file
*/
if (!HW)
HW = (CU == NOSTR) || (DU && equal(DV, CU));
HO = host;
/*
* see if uppercase mode should be turned on initially
*/
if (cgetflag("ra"))
setboolean(value(RAISE), 1);
if (cgetflag("ec"))
setboolean(value(ECHOCHECK), 1);
if (cgetflag("be"))
setboolean(value(BEAUTIFY), 1);
if (cgetflag("nb"))
setboolean(value(BEAUTIFY), 0);
if (cgetflag("sc"))
setboolean(value(SCRIPT), 1);
if (cgetflag("tb"))
setboolean(value(TABEXPAND), 1);
if (cgetflag("vb"))
setboolean(value(VERBOSE), 1);
if (cgetflag("nv"))
setboolean(value(VERBOSE), 0);
if (cgetflag("ta"))
setboolean(value(TAND), 1);
if (cgetflag("nt"))
setboolean(value(TAND), 0);
if (cgetflag("rw"))
setboolean(value(RAWFTP), 1);
if (cgetflag("hd"))
setboolean(value(HALFDUPLEX), 1);
if (cgetflag("dc"))
setboolean(value(DC), 1);
if (cgetflag("hf"))
setboolean(value(HARDWAREFLOW), 1);
if (RE == NOSTR)
RE = (char *)"tip.record";
if (EX == NOSTR)
EX = (char *)"\t\n\b\f";
if (ES != NOSTR)
vstring("es", ES);
if (FO != NOSTR)
vstring("fo", FO);
if (PR != NOSTR)
vstring("pr", PR);
if (RC != NOSTR)
vstring("rc", RC);
if (cgetnum(bp, "dl", &DL) == -1)
DL = 0;
if (cgetnum(bp, "cl", &CL) == -1)
CL = 0;
if (cgetnum(bp, "et", &ET) == -1)
ET = 10;
}
