static void
write_it(ENTRY * ep)
{
unsigned n;
int ch;
char *s, *d, *t;
char result[MAX_ENTRY_SIZE];
/*
* Look for strings that contain %{number}, convert them to %'char',
* which is shorter and runs a little faster.
*/
for (n = 0; n < STRCOUNT; n++) {
s = ep->tterm.Strings[n];
if (VALID_STRING(s)
&& strchr(s, L_BRACE) != 0) {
d = result;
t = s;
while ((ch = *t++) != 0) {
*d++ = ch;
if (ch == '\\') {
*d++ = *t++;
} else if ((ch == '%')
&& (*t == L_BRACE)) {
char *v = 0;
long value = strtol(t + 1, &v, 0);
if (v != 0
&& *v == R_BRACE
&& value > 0
&& value != '\\' /* FIXME */
&& value < 127
&& isprint((int) value)) {
*d++ = S_QUOTE;
*d++ = (int) value;
*d++ = S_QUOTE;
t = (v + 1);
}
}
}
*d = 0;
if (strlen(result) < strlen(s))
strcpy(s, result);
}
}
_nc_set_type(_nc_first_name(ep->tterm.term_names));
_nc_curr_line = ep->startline;
_nc_write_entry(&ep->tterm);
}
_nc_parse_entry(struct entry *entryp, int literal, bool silent)
{
int token_type;
struct name_table_entry const *entry_ptr;
char *ptr, *base;
bool bad_tc_usage = FALSE;
token_type = _nc_get_token(silent);
if (token_type == EOF)
return (EOF);
if (token_type != NAMES)
_nc_err_abort("Entry does not start with terminal names in column one");
_nc_init_entry(&entryp->tterm);
entryp->cstart = _nc_comment_start;
entryp->cend = _nc_comment_end;
entryp->startline = _nc_start_line;
DEBUG(2, ("Comment range is %ld to %ld", entryp->cstart, entryp->cend));
/*
* Strip off the 2-character termcap name, if present. Originally termcap
* used that as an indexing aid. We can retain 2-character terminfo names,
* but note that they would be lost if we translate to/from termcap. This
* feature is supposedly obsolete since "newer" BSD implementations do not
* use it; however our reference for this feature is SunOS 4.x, which
* implemented it. Note that the resulting terminal type was never the
* 2-character name, but was instead the first alias after that.
*/
ptr = _nc_curr_token.tk_name;
if (_nc_syntax == SYN_TERMCAP
#if NCURSES_XNAMES
&& !_nc_user_definable
#endif
) {
if (ptr[2] == '|') {
ptr += 3;
_nc_curr_token.tk_name[2] = '\0';
}
}
entryp->tterm.str_table = entryp->tterm.term_names = _nc_save_str(ptr);
DEBUG(1, ("Starting '%s'", ptr));
/*
* We do this because the one-token lookahead in the parse loop
* results in the terminal type getting prematurely set to correspond
* to that of the next entry.
*/
_nc_set_type(_nc_first_name(entryp->tterm.term_names));
/* check for overly-long names and aliases */
for (base = entryp->tterm.term_names; (ptr = strchr(base, '|')) != 0;
base = ptr + 1) {
if (ptr - base > MAX_ALIAS) {
_nc_warning("%s `%.*s' may be too long",
(base == entryp->tterm.term_names)
? "primary name"
: "alias",
(int) (ptr - base), base);
}
}
entryp->nuses = 0;
for (token_type = _nc_get_token(silent);
token_type != EOF && token_type != NAMES;
token_type = _nc_get_token(silent)) {
bool is_use = (strcmp(_nc_curr_token.tk_name, "use") == 0);
bool is_tc = !is_use && (strcmp(_nc_curr_token.tk_name, "tc") == 0);
if (is_use || is_tc) {
entryp->uses[entryp->nuses].name = _nc_save_str(_nc_curr_token.tk_valstring);
entryp->uses[entryp->nuses].line = _nc_curr_line;
entryp->nuses++;
if (entryp->nuses > 1 && is_tc) {
BAD_TC_USAGE
}
} else {
_nc_resolve_uses2(bool fullresolve, bool literal)
/* try to resolve all use capabilities */
{
ENTRY *qp, *rp, *lastread = 0;
bool keepgoing;
unsigned i;
int unresolved, total_unresolved, multiples;
DEBUG(2, ("RESOLUTION BEGINNING"));
/*
* Check for multiple occurrences of the same name.
*/
multiples = 0;
for_entry_list(qp) {
int matchcount = 0;
for_entry_list(rp) {
if (qp > rp
&& _nc_entry_match(qp->tterm.term_names, rp->tterm.term_names)) {
matchcount++;
if (matchcount == 1) {
(void) fprintf(stderr, "Name collision between %s",
_nc_first_name(qp->tterm.term_names));
multiples++;
}
if (matchcount >= 1)
(void) fprintf(stderr, " %s", _nc_first_name(rp->tterm.term_names));
}
}
if (matchcount >= 1)
(void) putc('\n', stderr);
}
if (multiples > 0)
return (FALSE);
DEBUG(2, ("NO MULTIPLE NAME OCCURRENCES"));
/*
* First resolution stage: compute link pointers corresponding to names.
*/
total_unresolved = 0;
_nc_curr_col = -1;
for_entry_list(qp) {
unresolved = 0;
for (i = 0; i < qp->nuses; i++) {
bool foundit;
char *child = _nc_first_name(qp->tterm.term_names);
char *lookfor = qp->uses[i].name;
long lookline = qp->uses[i].line;
foundit = FALSE;
_nc_set_type(child);
/* first, try to resolve from in-core records */
for_entry_list(rp) {
if (rp != qp
&& _nc_name_match(rp->tterm.term_names, lookfor, "|")) {
DEBUG(2, ("%s: resolving use=%s (in core)",
child, lookfor));
qp->uses[i].link = rp;
foundit = TRUE;
}
}
/* if that didn't work, try to merge in a compiled entry */
if (!foundit) {
TERMTYPE thisterm;
char filename[PATH_MAX];
memset(&thisterm, 0, sizeof(thisterm));
if (_nc_read_entry(lookfor, filename, &thisterm) == 1) {
DEBUG(2, ("%s: resolving use=%s (compiled)",
child, lookfor));
rp = typeMalloc(ENTRY, 1);
if (rp == 0)
_nc_err_abort(MSG_NO_MEMORY);
rp->tterm = thisterm;
rp->nuses = 0;
rp->next = lastread;
lastread = rp;
qp->uses[i].link = rp;
foundit = TRUE;
}
}
/* no good, mark this one unresolvable and complain */
if (!foundit) {
unresolved++;
total_unresolved++;
_nc_curr_line = lookline;
_nc_warning("resolution of use=%s failed", lookfor);
qp->uses[i].link = 0;
}
}
}
if (total_unresolved) {
/* free entries read in off disk */
_nc_free_entries(lastread);
return (FALSE);
}
DEBUG(2, ("NAME RESOLUTION COMPLETED OK"));
/*
* OK, at this point all (char *) references in `name' members
* have been successfully converted to (ENTRY *) pointers in
* `link' members. Time to do the actual merges.
*/
if (fullresolve) {
do {
TERMTYPE merged;
keepgoing = FALSE;
for_entry_list(qp) {
if (qp->nuses > 0) {
DEBUG(2, ("%s: attempting merge",
_nc_first_name(qp->tterm.term_names)));
/*
* If any of the use entries we're looking for is
* incomplete, punt. We'll catch this entry on a
* subsequent pass.
*/
for (i = 0; i < qp->nuses; i++)
if (qp->uses[i].link->nuses) {
DEBUG(2, ("%s: use entry %d unresolved",
_nc_first_name(qp->tterm.term_names), i));
goto incomplete;
}
/*
* First, make sure there is no garbage in the
* merge block. As a side effect, copy into
* the merged entry the name field and string
* table pointer.
*/
_nc_copy_termtype(&merged, &(qp->tterm));
/*
* Now merge in each use entry in the proper
* (reverse) order.
*/
for (; qp->nuses; qp->nuses--)
_nc_merge_entry(&merged,
&qp->uses[qp->nuses - 1].link->tterm);
/*
* Now merge in the original entry.
*/
_nc_merge_entry(&merged, &qp->tterm);
/*
* Replace the original entry with the merged one.
*/
FreeIfNeeded(qp->tterm.Booleans);
FreeIfNeeded(qp->tterm.Numbers);
FreeIfNeeded(qp->tterm.Strings);
#if NCURSES_XNAMES
FreeIfNeeded(qp->tterm.ext_Names);
#endif
qp->tterm = merged;
_nc_wrap_entry(qp, TRUE);
/*
* We know every entry is resolvable because name resolution
* didn't bomb. So go back for another pass.
*/
/* FALLTHRU */
incomplete:
keepgoing = TRUE;
}
}
} while
(keepgoing);
DEBUG(2, ("MERGES COMPLETED OK"));
}
/*
* We'd like to free entries read in off disk at this point, but can't.
* The merge_entry() code doesn't copy the strings in the use entries,
* it just aliases them. If this ever changes, do a
* free_entries(lastread) here.
*/
DEBUG(2, ("RESOLUTION FINISHED"));
if (fullresolve)
if (_nc_check_termtype != 0) {
_nc_curr_col = -1;
for_entry_list(qp) {
_nc_curr_line = qp->startline;
_nc_set_type(_nc_first_name(qp->tterm.term_names));
_nc_check_termtype2(&qp->tterm, literal);
}
DEBUG(2, ("SANITY CHECK FINISHED"));
}
int
_nc_parse_entry(struct entry *entryp, int literal, bool silent)
{
int token_type;
struct name_table_entry const *entry_ptr;
char *ptr, *base;
token_type = _nc_get_token();
if (token_type == EOF)
return (EOF);
if (token_type != NAMES)
_nc_err_abort("Entry does not start with terminal names in column one");
_nc_init_entry(&entryp->tterm);
entryp->cstart = _nc_comment_start;
entryp->cend = _nc_comment_end;
entryp->startline = _nc_start_line;
DEBUG(2, ("Comment range is %ld to %ld", entryp->cstart, entryp->cend));
/* junk the 2-character termcap name, if present */
ptr = _nc_curr_token.tk_name;
if (ptr[2] == '|') {
ptr = _nc_curr_token.tk_name + 3;
_nc_curr_token.tk_name[2] = '\0';
}
entryp->tterm.str_table = entryp->tterm.term_names = _nc_save_str(ptr);
DEBUG(1, ("Starting '%s'", ptr));
/*
* We do this because the one-token lookahead in the parse loop
* results in the terminal type getting prematurely set to correspond
* to that of the next entry.
*/
_nc_set_type(_nc_first_name(entryp->tterm.term_names));
/* check for overly-long names and aliases */
for (base = entryp->tterm.term_names; (ptr = strchr(base, '|')) != 0;
base = ptr + 1) {
if (ptr - base > MAX_ALIAS) {
_nc_warning("%s `%.*s' may be too long",
(base == entryp->tterm.term_names)
? "primary name"
: "alias",
ptr - base, base);
}
}
entryp->nuses = 0;
for (token_type = _nc_get_token();
token_type != EOF && token_type != NAMES;
token_type = _nc_get_token()) {
if (strcmp(_nc_curr_token.tk_name, "use") == 0
|| strcmp(_nc_curr_token.tk_name, "tc") == 0) {
entryp->uses[entryp->nuses].name = _nc_save_str(_nc_curr_token.tk_valstring);
entryp->uses[entryp->nuses].line = _nc_curr_line;
entryp->nuses++;
} else {
/* normal token lookup */
entry_ptr = _nc_find_entry(_nc_curr_token.tk_name,
_nc_syntax ? _nc_cap_hash_table : _nc_info_hash_table);
/*
* Our kluge to handle aliasing. The reason it's done
* this ugly way, with a linear search, is so the hashing
* machinery doesn't have to be made really complicated
* (also we get better warnings this way). No point in
* making this case fast, aliased caps aren't common now
* and will get rarer.
*/
if (entry_ptr == NOTFOUND) {
const struct alias *ap;
if (_nc_syntax == SYN_TERMCAP) {
for (ap = _nc_capalias_table; ap->from; ap++)
if (strcmp(ap->from, _nc_curr_token.tk_name) == 0) {
if (ap->to == (char *) 0) {
_nc_warning("%s (%s termcap extension) ignored",
ap->from, ap->source);
goto nexttok;
}
entry_ptr = _nc_find_entry(ap->to, _nc_cap_hash_table);
if (entry_ptr && !silent)
_nc_warning("%s (%s termcap extension) aliased to %s",
ap->from, ap->source, ap->to);
break;
}
} else { /* if (_nc_syntax == SYN_TERMINFO) */
for (ap = _nc_infoalias_table; ap->from; ap++)
if (strcmp(ap->from, _nc_curr_token.tk_name) == 0) {
if (ap->to == (char *) 0) {
_nc_warning("%s (%s terminfo extension) ignored",
ap->from, ap->source);
goto nexttok;
}
entry_ptr = _nc_find_entry(ap->to, _nc_info_hash_table);
if (entry_ptr && !silent)
_nc_warning("%s (%s terminfo extension) aliased to %s",
ap->from, ap->source, ap->to);
break;
}
if (entry_ptr == NOTFOUND) {
entry_ptr = lookup_fullname(_nc_curr_token.tk_name);
}
}
}
#if NCURSES_XNAMES
/*
* If we have extended-names active, we will automatically
* define a name based on its context.
*/
if (entry_ptr == NOTFOUND
&& _nc_user_definable
&& (entry_ptr = _nc_extend_names(entryp,
_nc_curr_token.tk_name,
token_type)) != 0) {
if (_nc_tracing >= DEBUG_LEVEL(1))
_nc_warning("extended capability '%s'", _nc_curr_token.tk_name);
}
#endif /* NCURSES_XNAMES */
/* can't find this cap name, not even as an alias */
if (entry_ptr == NOTFOUND) {
if (!silent)
_nc_warning("unknown capability '%s'",
_nc_curr_token.tk_name);
continue;
}
/* deal with bad type/value combinations. */
if (token_type != CANCEL && entry_ptr->nte_type != token_type) {
/*
* Nasty special cases here handle situations in which type
* information can resolve name clashes. Normal lookup
* finds the last instance in the capability table of a
* given name, regardless of type. find_type_entry looks
* for a first matching instance with given type. So as
* long as all ambiguous names occur in pairs of distinct
* type, this will do the job.
*/
/* tell max_attributes from arrow_key_map */
if (token_type == NUMBER && !strcmp("ma", _nc_curr_token.tk_name))
entry_ptr = _nc_find_type_entry("ma", NUMBER,
_nc_get_table(_nc_syntax
!= 0));
/* map terminfo's string MT to MT */
else if (token_type == STRING && !strcmp("MT", _nc_curr_token.tk_name))
entry_ptr = _nc_find_type_entry("MT", STRING,
_nc_get_table(_nc_syntax
!= 0));
/* treat strings without following "=" as empty strings */
else if (token_type == BOOLEAN && entry_ptr->nte_type == STRING)
token_type = STRING;
/* we couldn't recover; skip this token */
else {
if (!silent) {
const char *type_name;
switch (entry_ptr->nte_type) {
case BOOLEAN:
type_name = "boolean";
break;
case STRING:
type_name = "string";
break;
case NUMBER:
type_name = "numeric";
break;
default:
type_name = "unknown";
break;
}
_nc_warning("wrong type used for %s capability '%s'",
type_name, _nc_curr_token.tk_name);
}
continue;
}
}
/* now we know that the type/value combination is OK */
switch (token_type) {
case CANCEL:
switch (entry_ptr->nte_type) {
case BOOLEAN:
entryp->tterm.Booleans[entry_ptr->nte_index] = CANCELLED_BOOLEAN;
break;
case NUMBER:
entryp->tterm.Numbers[entry_ptr->nte_index] = CANCELLED_NUMERIC;
break;
case STRING:
entryp->tterm.Strings[entry_ptr->nte_index] = CANCELLED_STRING;
break;
}
break;
case BOOLEAN:
entryp->tterm.Booleans[entry_ptr->nte_index] = TRUE;
break;
case NUMBER:
entryp->tterm.Numbers[entry_ptr->nte_index] =
_nc_curr_token.tk_valnumber;
break;
case STRING:
ptr = _nc_curr_token.tk_valstring;
if (_nc_syntax == SYN_TERMCAP)
ptr = _nc_captoinfo(_nc_curr_token.tk_name,
ptr,
parametrized[entry_ptr->nte_index]);
entryp->tterm.Strings[entry_ptr->nte_index] = _nc_save_str(ptr);
break;
default:
if (!silent)
_nc_warning("unknown token type");
_nc_panic_mode((_nc_syntax == SYN_TERMCAP) ? ':' : ',');
continue;
}
} /* end else cur_token.name != "use" */
nexttok:
continue; /* cannot have a label w/o statement */
} /* endwhile (not EOF and not NAMES) */
_nc_push_token(token_type);
_nc_set_type(_nc_first_name(entryp->tterm.term_names));
/*
* Try to deduce as much as possible from extension capabilities
* (this includes obsolete BSD capabilities). Sigh...it would be more
* space-efficient to call this after use resolution, but it has
* to be done before entry allocation is wrapped up.
*/
if (!literal) {
if (_nc_syntax == SYN_TERMCAP) {
bool has_base_entry = FALSE;
int i;
/*
* Don't insert defaults if this is a `+' entry meant only
* for inclusion in other entries (not sure termcap ever
* had these, actually).
*/
if (strchr(entryp->tterm.term_names, '+'))
has_base_entry = TRUE;
else
/*
* Otherwise, look for a base entry that will already
* have picked up defaults via translation.
*/
for (i = 0; i < entryp->nuses; i++)
if (!strchr((char *) entryp->uses[i].name, '+'))
has_base_entry = TRUE;
postprocess_termcap(&entryp->tterm, has_base_entry);
} else
postprocess_terminfo(&entryp->tterm);
}
_nc_wrap_entry(entryp);
return (OK);
}
_nc_write_entry(TERMTYPE *const tp)
{
#if USE_HASHED_DB
char buffer[MAX_ENTRY_SIZE + 1];
unsigned limit = sizeof(buffer);
unsigned offset = 0;
#else /* !USE_HASHED_DB */
struct stat statbuf;
char filename[PATH_MAX];
char linkname[PATH_MAX];
#if USE_SYMLINKS
char symlinkname[PATH_MAX];
#if !HAVE_LINK
#undef HAVE_LINK
#define HAVE_LINK 1
#endif
#endif /* USE_SYMLINKS */
static int call_count;
static time_t start_time; /* time at start of writes */
#endif /* USE_HASHED_DB */
char name_list[MAX_TERMINFO_LENGTH];
char *first_name, *other_names;
char *ptr;
assert(strlen(tp->term_names) != 0);
assert(strlen(tp->term_names) < sizeof(name_list));
(void) strlcpy(name_list, tp->term_names, sizeof(name_list));
DEBUG(7, ("Name list = '%s'", name_list));
first_name = name_list;
ptr = &name_list[strlen(name_list) - 1];
other_names = ptr + 1;
while (ptr > name_list && *ptr != '|')
ptr--;
if (ptr != name_list) {
*ptr = '\0';
for (ptr = name_list; *ptr != '\0' && *ptr != '|'; ptr++)
continue;
if (*ptr == '\0')
other_names = ptr;
else {
*ptr = '\0';
other_names = ptr + 1;
}
}
DEBUG(7, ("First name = '%s'", first_name));
DEBUG(7, ("Other names = '%s'", other_names));
_nc_set_type(first_name);
#if USE_HASHED_DB
if (write_object(tp, buffer + 1, &offset, limit - 1) != ERR) {
DB *capdb = _nc_db_open(_nc_tic_dir(0), TRUE);
DBT key, data;
if (capdb != 0) {
buffer[0] = 0;
memset(&key, 0, sizeof(key));
key.data = tp->term_names;
key.size = strlen(tp->term_names);
memset(&data, 0, sizeof(data));
data.data = buffer;
data.size = offset + 1;
_nc_db_put(capdb, &key, &data);
buffer[0] = 2;
key.data = name_list;
key.size = strlen(name_list);
strlcpy(buffer + 1, tp->term_names, sizeof(buffer) - 1);
data.size = strlen(tp->term_names) + 1;
_nc_db_put(capdb, &key, &data);
while (*other_names != '\0') {
ptr = other_names++;
while (*other_names != '|' && *other_names != '\0')
other_names++;
if (*other_names != '\0')
*(other_names++) = '\0';
key.data = ptr;
key.size = strlen(ptr);
_nc_db_put(capdb, &key, &data);
}
_nc_db_close(capdb);
}
}
#else /* !USE_HASHED_DB */
if (call_count++ == 0) {
start_time = 0;
}
if (strlen(first_name) >= sizeof(filename) - 3)
_nc_warning("terminal name too long.");
snprintf(filename, sizeof(filename), LEAF_FMT "/%s", first_name[0], first_name);
/*
* Has this primary name been written since the first call to
* write_entry()? If so, the newer write will step on the older,
* so warn the user.
*/
if (start_time > 0 &&
stat(filename, &statbuf) >= 0
&& statbuf.st_mtime >= start_time) {
_nc_warning("name multiply defined.");
}
check_writeable(first_name[0]);
write_file(filename, tp);
if (start_time == 0) {
if (stat(filename, &statbuf) < 0
|| (start_time = statbuf.st_mtime) == 0) {
_nc_syserr_abort("error obtaining time from %s/%s",
_nc_tic_dir(0), filename);
}
}
while (*other_names != '\0') {
ptr = other_names++;
assert(ptr < buffer + sizeof(buffer) - 1);
while (*other_names != '|' && *other_names != '\0')
other_names++;
if (*other_names != '\0')
*(other_names++) = '\0';
if (strlen(ptr) > sizeof(linkname) - 3) {
_nc_warning("terminal alias %s too long.", ptr);
continue;
}
if (strchr(ptr, '/') != 0) {
_nc_warning("cannot link alias %s.", ptr);
continue;
}
check_writeable(ptr[0]);
snprintf(linkname, sizeof(linkname), LEAF_FMT "/%s", ptr[0], ptr);
if (strcmp(filename, linkname) == 0) {
_nc_warning("self-synonym ignored");
} else if (stat(linkname, &statbuf) >= 0 &&
statbuf.st_mtime < start_time) {
_nc_warning("alias %s multiply defined.", ptr);
} else if (_nc_access(linkname, W_OK) == 0)
#if HAVE_LINK
{
int code;
#if USE_SYMLINKS
strlcpy(symlinkname, "../", sizeof(symlinkname));
strlcat(symlinkname, filename, sizeof(symlinkname));
#endif /* USE_SYMLINKS */
#if HAVE_REMOVE
code = remove(linkname);
#else
code = unlink(linkname);
#endif
if (code != 0 && errno == ENOENT)
code = 0;
#if USE_SYMLINKS
if (symlink(symlinkname, linkname) < 0)
#else
if (link(filename, linkname) < 0)
#endif /* USE_SYMLINKS */
{
/*
* If there wasn't anything there, and we cannot
* link to the target because it is the same as the
* target, then the source must be on a filesystem
* that uses caseless filenames, such as Win32, etc.
*/
if (code == 0 && errno == EEXIST)
_nc_warning("can't link %s to %s", filename, linkname);
else if (code == 0 && (errno == EPERM || errno == ENOENT))
write_file(linkname, tp);
else {
#if MIXEDCASE_FILENAMES
_nc_syserr_abort("can't link %s to %s", filename, linkname);
#else
_nc_warning("can't link %s to %s (errno=%d)", filename,
linkname, errno);
#endif
}
} else {
DEBUG(1, ("Linked %s", linkname));
}
}
#else /* just make copies */
write_file(linkname, tp);
#endif /* HAVE_LINK */
}
#endif /* USE_HASHED_DB */
}
_nc_get_token(bool silent)
{
static const char terminfo_punct[] = "@%&*!#";
long number;
int type;
int ch;
char *numchk;
char numbuf[80];
unsigned found;
static char buffer[MAX_ENTRY_SIZE];
char *ptr;
int dot_flag = FALSE;
long token_start;
if (pushtype != NO_PUSHBACK) {
int retval = pushtype;
_nc_set_type(pushname);
DEBUG(3, ("pushed-back token: `%s', class %d",
_nc_curr_token.tk_name, pushtype));
pushtype = NO_PUSHBACK;
pushname[0] = '\0';
/* currtok wasn't altered by _nc_push_token() */
return (retval);
}
if (end_of_stream())
return (EOF);
start_token:
token_start = stream_pos();
while ((ch = next_char()) == '\n' || iswhite(ch))
continue;
ch = eat_escaped_newline(ch);
if (ch == EOF)
type = EOF;
else {
/* if this is a termcap entry, skip a leading separator */
if (separator == ':' && ch == ':')
ch = next_char();
if (ch == '.'
#if NCURSES_EXT_FUNCS
&& !_nc_disable_period
#endif
) {
dot_flag = TRUE;
DEBUG(8, ("dot-flag set"));
while ((ch = next_char()) == '.' || iswhite(ch))
continue;
}
if (ch == EOF) {
type = EOF;
goto end_of_token;
}
/* have to make some punctuation chars legal for terminfo */
if (!isalnum(ch)
#if NCURSES_EXT_FUNCS
&& !(ch == '.' && _nc_disable_period)
#endif
&& !strchr(terminfo_punct, (char) ch)) {
if (!silent)
_nc_warning("Illegal character (expected alphanumeric or %s) - %s",
terminfo_punct, unctrl((chtype) ch));
_nc_panic_mode(separator);
goto start_token;
}
ptr = buffer;
*(ptr++) = ch;
if (first_column) {
char *desc;
_nc_comment_start = token_start;
_nc_comment_end = _nc_curr_file_pos;
_nc_start_line = _nc_curr_line;
_nc_syntax = ERR;
while ((ch = next_char()) != '\n') {
if (ch == EOF)
_nc_err_abort("premature EOF");
else if (ch == ':' && last_char() != ',') {
_nc_syntax = SYN_TERMCAP;
separator = ':';
break;
} else if (ch == ',') {
_nc_syntax = SYN_TERMINFO;
separator = ',';
/*
* Fall-through here is not an accident. The idea is that
* if we see a comma, we figure this is terminfo unless we
* subsequently run into a colon -- but we don't stop
* looking for that colon until hitting a newline. This
* allows commas to be embedded in description fields of
* either syntax.
*/
/* FALLTHRU */
} else
ch = eat_escaped_newline(ch);
*ptr++ = ch;
}
ptr[0] = '\0';
if (_nc_syntax == ERR) {
/*
* Grrr...what we ought to do here is barf, complaining that
* the entry is malformed. But because a couple of name fields
* in the 8.2 termcap file end with |\, we just have to assume
* it's termcap syntax.
*/
_nc_syntax = SYN_TERMCAP;
separator = ':';
} else if (_nc_syntax == SYN_TERMINFO) {
/* throw away trailing /, *$/ */
for (--ptr; iswhite(*ptr) || *ptr == ','; ptr--)
continue;
ptr[1] = '\0';
}
/*
* This is the soonest we have the terminal name fetched. Set up
* for following warning messages.
*/
ptr = strchr(buffer, '|');
if (ptr == (char *) NULL)
ptr = buffer + strlen(buffer);
ch = *ptr;
*ptr = '\0';
_nc_set_type(buffer);
*ptr = ch;
/*
* Compute the boundary between the aliases and the description
* field for syntax-checking purposes.
*/
desc = strrchr(buffer, '|');
if (!silent && desc) {
if (*desc == '\0')
_nc_warning("empty longname field");
else if (strchr(desc, ' ') == (char *) NULL)
_nc_warning("older tic versions may treat the description field as an alias");
}
if (!desc)
desc = buffer + strlen(buffer);
/*
* Whitespace in a name field other than the long name can confuse
* rdist and some termcap tools. Slashes are a no-no. Other
* special characters can be dangerous due to shell expansion.
*/
for (ptr = buffer; ptr < desc; ptr++) {
if (isspace(CharOf(*ptr))) {
if (!silent)
_nc_warning("whitespace in name or alias field");
break;
} else if (*ptr == '/') {
if (!silent)
_nc_warning("slashes aren't allowed in names or aliases");
break;
} else if (strchr("$[]!*?", *ptr)) {
if (!silent)
_nc_warning("dubious character `%c' in name or alias field", *ptr);
break;
}
}
ptr = buffer;
_nc_curr_token.tk_name = buffer;
type = NAMES;
} else {
while ((ch = next_char()) != EOF) {
if (!isalnum(ch)) {
if (_nc_syntax == SYN_TERMINFO) {
if (ch != '_')
break;
} else { /* allow ';' for "k;" */
if (ch != ';')
break;
}
}
*(ptr++) = ch;
}
*ptr++ = '\0';
switch (ch) {
case ',':
case ':':
if (ch != separator)
_nc_err_abort("Separator inconsistent with syntax");
_nc_curr_token.tk_name = buffer;
type = BOOLEAN;
break;
case '@':
if ((ch = next_char()) != separator && !silent)
_nc_warning("Missing separator after `%s', have %s",
buffer, unctrl((chtype) ch));
_nc_curr_token.tk_name = buffer;
type = CANCEL;
break;
case '#':
found = 0;
while (isalnum(ch = next_char())) {
numbuf[found++] = ch;
if (found >= sizeof(numbuf) - 1)
break;
}
numbuf[found] = '\0';
number = strtol(numbuf, &numchk, 0);
if (!silent) {
if (numchk == numbuf)
_nc_warning("no value given for `%s'", buffer);
if ((*numchk != '\0') || (ch != separator))
_nc_warning("Missing separator");
}
_nc_curr_token.tk_name = buffer;
_nc_curr_token.tk_valnumber = number;
type = NUMBER;
break;
case '=':
ch = _nc_trans_string(ptr, buffer + sizeof(buffer));
if (!silent && ch != separator)
_nc_warning("Missing separator");
_nc_curr_token.tk_name = buffer;
_nc_curr_token.tk_valstring = ptr;
type = STRING;
break;
case EOF:
type = EOF;
break;
default:
/* just to get rid of the compiler warning */
type = UNDEF;
if (!silent)
_nc_warning("Illegal character - %s", unctrl((chtype) ch));
}
} /* end else (first_column == FALSE) */
} /* end else (ch != EOF) */
end_of_token:
#ifdef TRACE
if (dot_flag == TRUE)
DEBUG(8, ("Commented out "));
if (_nc_tracing >= DEBUG_LEVEL(7)) {
switch (type) {
case BOOLEAN:
_tracef("Token: Boolean; name='%s'",
_nc_curr_token.tk_name);
break;
case NUMBER:
_tracef("Token: Number; name='%s', value=%d",
_nc_curr_token.tk_name,
_nc_curr_token.tk_valnumber);
break;
case STRING:
_tracef("Token: String; name='%s', value=%s",
_nc_curr_token.tk_name,
_nc_visbuf(_nc_curr_token.tk_valstring));
break;
case CANCEL:
_tracef("Token: Cancel; name='%s'",
_nc_curr_token.tk_name);
break;
case NAMES:
_tracef("Token: Names; value='%s'",
_nc_curr_token.tk_name);
break;
case EOF:
_tracef("Token: End of file");
break;
default:
_nc_warning("Bad token type");
}
}
#endif
if (dot_flag == TRUE) /* if commented out, use the next one */
type = _nc_get_token(silent);
DEBUG(3, ("token: `%s', class %d",
_nc_curr_token.tk_name != 0 ? _nc_curr_token.tk_name :
"<null>",
type));
return (type);
}
void
_nc_write_entry(TERMTYPE * const tp)
{
struct stat statbuf;
char name_list[MAX_TERMINFO_LENGTH];
char *first_name, *other_names;
char *ptr;
char filename[PATH_MAX];
char linkname[PATH_MAX];
#if USE_SYMLINKS
char symlinkname[PATH_MAX];
#if !HAVE_LINK
#undef HAVE_LINK
#define HAVE_LINK 1
#endif
#endif /* USE_SYMLINKS */
static int call_count;
static time_t start_time; /* time at start of writes */
if (call_count++ == 0) {
start_time = 0;
}
(void) strcpy(name_list, tp->term_names);
DEBUG(7, ("Name list = '%s'", name_list));
first_name = name_list;
ptr = &name_list[strlen(name_list) - 1];
other_names = ptr + 1;
while (ptr > name_list && *ptr != '|')
ptr--;
if (ptr != name_list) {
*ptr = '\0';
for (ptr = name_list; *ptr != '\0' && *ptr != '|'; ptr++)
continue;
if (*ptr == '\0')
other_names = ptr;
else {
*ptr = '\0';
other_names = ptr + 1;
}
}
DEBUG(7, ("First name = '%s'", first_name));
DEBUG(7, ("Other names = '%s'", other_names));
_nc_set_type(first_name);
if (strlen(first_name) > sizeof(filename) - 3)
_nc_warning("terminal name too long.");
sprintf(filename, "%c/%s", first_name[0], first_name);
/*
* Has this primary name been written since the first call to
* write_entry()? If so, the newer write will step on the older,
* so warn the user.
*/
if (start_time > 0 &&
stat(filename, &statbuf) >= 0
&& statbuf.st_mtime >= start_time) {
_nc_warning("name multiply defined.");
}
check_writeable(first_name[0]);
write_file(filename, tp);
if (start_time == 0) {
if (stat(filename, &statbuf) < 0
|| (start_time = statbuf.st_mtime) == 0) {
_nc_syserr_abort("error obtaining time from %s/%s",
_nc_tic_dir(0), filename);
}
}
while (*other_names != '\0') {
ptr = other_names++;
while (*other_names != '|' && *other_names != '\0')
other_names++;
if (*other_names != '\0')
*(other_names++) = '\0';
if (strlen(ptr) > sizeof(linkname) - 3) {
_nc_warning("terminal alias %s too long.", ptr);
continue;
}
if (strchr(ptr, '/') != 0) {
_nc_warning("cannot link alias %s.", ptr);
continue;
}
check_writeable(ptr[0]);
sprintf(linkname, "%c/%s", ptr[0], ptr);
if (strcmp(filename, linkname) == 0) {
_nc_warning("self-synonym ignored");
} else if (stat(linkname, &statbuf) >= 0 &&
statbuf.st_mtime < start_time) {
_nc_warning("alias %s multiply defined.", ptr);
} else if (_nc_access(linkname, W_OK) == 0)
#if HAVE_LINK
{
int code;
#if USE_SYMLINKS
strcpy(symlinkname, "../");
strncat(symlinkname, filename, sizeof(symlinkname) - 4);
symlinkname[sizeof(symlinkname) - 1] = '\0';
#endif /* USE_SYMLINKS */
#if HAVE_REMOVE
code = remove(linkname);
#else
code = unlink(linkname);
#endif
if (code != 0 && errno == ENOENT)
code = 0;
#if USE_SYMLINKS
if (symlink(symlinkname, linkname) < 0)
#else
if (link(filename, linkname) < 0)
#endif /* USE_SYMLINKS */
{
/*
* If there wasn't anything there, and we cannot
* link to the target because it is the same as the
* target, then the source must be on a filesystem
* that uses caseless filenames, such as Win32, etc.
*/
if (code == 0 && errno == EEXIST)
_nc_warning("can't link %s to %s", filename, linkname);
else if (code == 0 && (errno == EPERM || errno == ENOENT))
write_file(linkname, tp);
else {
#if MIXEDCASE_FILENAMES
_nc_syserr_abort("can't link %s to %s", filename, linkname);
#else
_nc_warning("can't link %s to %s (errno=%d)", filename,
linkname, errno);
#endif
}
} else {
DEBUG(1, ("Linked %s", linkname));
}
}
#else /* just make copies */
write_file(linkname, tp);
#endif /* HAVE_LINK */
}
}
