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Re: recent terminfo changes
In article <431d1631-ef82-d1ec-98ff-e39b71418233%marples.name@localhost>,
Roy Marples <roy%marples.name@localhost> wrote:
>On 27/03/2020 13:15, Christos Zoulas wrote:
>>
>>
>>> On Mar 27, 2020, at 4:05 AM, Roy Marples <roy%marples.name@localhost> wrote:
>>>
>>> On 27/03/2020 02:06, Christos Zoulas wrote:
>>>> @@ -494,6 +530,7 @@
>>>> if (tic == NULL)
>>>> return NULL;
>>>> + tic->rtype = _ti_find_rtype(cap);
>>>> buf.buf = NULL;
>>>> buf.buflen = 0;
>>>
>>> If I'm reading this patch correctly, it means that the old terminfo
>library cannot read the records for at least screen-256color and
>xterm-256color because they will be stored in version 3.
>>
>> Yes, and I can fix that by implementing the full proposal with just a
>few more lines of code:
>> 1. create a v1 entry with clamped values
>> 2. create a v3 entry called <name>@v3
>> 3. always lookup for <name>@v3 first and if that fails, use <name>.
>>
>> I am not sure if it is worth it, as the user can always export
>TERM=xterm and export TERM=screen to get a slightly less functional and
>working setup.
>> But if people feel otherwise, I will make my fingers even shorter and
>implement it.
>
>I think it's worthwhile not to break people working terminals.
Ok, done.
christos
Index: distrib/sets/lists/base/mi
===================================================================
RCS file: /cvsroot/src/distrib/sets/lists/base/mi,v
retrieving revision 1.1233
diff -u -u -r1.1233 mi
--- distrib/sets/lists/base/mi 22 Mar 2020 20:21:53 -0000 1.1233
+++ distrib/sets/lists/base/mi 27 Mar 2020 14:25:21 -0000
@@ -4841,7 +4841,8 @@
./usr/share/misc/more.help base-obsolete obsolete
./usr/share/misc/nslookup.help base-obsolete obsolete
./usr/share/misc/terminfo base-terminfo-share share
-./usr/share/misc/terminfo2.cdb base-terminfo-share share
+./usr/share/misc/terminfo.cdb base-terminfo-share share
+./usr/share/misc/terminfo2.cdb base-obsolete obsolete
./usr/share/misc/units.lib base-reference-share share
./usr/share/misc/usb_hid_usages base-reference-share share
./usr/share/misc/vgrindefs.db base-groff-share share
Index: share/terminfo/Makefile
===================================================================
RCS file: /cvsroot/src/share/terminfo/Makefile,v
retrieving revision 1.4
diff -u -u -r1.4 Makefile
--- share/terminfo/Makefile 13 Mar 2020 15:19:25 -0000 1.4
+++ share/terminfo/Makefile 27 Mar 2020 14:25:21 -0000
@@ -1,12 +1,12 @@
# $NetBSD: Makefile,v 1.4 2020/03/13 15:19:25 roy Exp $
# from: @(#)Makefile 8.1 (Berkeley) 6/8/93
-CLEANFILES= terminfo2.cdb
-realall: terminfo2.cdb
-FILES=terminfo2.cdb terminfo
+CLEANFILES= terminfo.cdb
+realall: terminfo.cdb
+FILES=terminfo.cdb terminfo
FILESDIR=${BINDIR}/misc
-terminfo2.cdb: terminfo ${TOOL_TIC}
+terminfo.cdb: terminfo ${TOOL_TIC}
${_MKTARGET_CREATE}
${TOOL_TIC} -ax -o ${.TARGET} "${.CURDIR}/terminfo"
Index: usr.bin/tic/tic.c
===================================================================
RCS file: /cvsroot/src/usr.bin/tic/tic.c,v
retrieving revision 1.32
diff -u -u -r1.32 tic.c
--- usr.bin/tic/tic.c 13 Mar 2020 15:19:25 -0000 1.32
+++ usr.bin/tic/tic.c 27 Mar 2020 14:25:21 -0000
@@ -167,6 +167,7 @@
char *p, *e, *alias;
TERM *term;
TIC *tic;
+ TBUF sbuf = *buf;
if (buf->bufpos == 0)
return 0;
@@ -211,13 +212,17 @@
free(alias);
}
+ if (tic->rtype == TERMINFO_RTYPE)
+ return process_entry(&sbuf, flags | TIC_COMPAT_V1);
+
return 0;
}
static void
merge(TIC *rtic, TIC *utic, int flags)
{
- char *cap, flag, *code, type, *str;
+ char flag, type;
+ const char *cap, *code, *str;
short ind, len;
int num;
size_t n;
@@ -228,7 +233,7 @@
cap += sizeof(uint16_t);
flag = *cap++;
if (VALID_BOOLEAN(flag) &&
- _ti_find_cap(&rtic->flags, 'f', ind) == NULL)
+ _ti_find_cap(rtic, &rtic->flags, 'f', ind) == NULL)
{
_ti_grow_tbuf(&rtic->flags, sizeof(uint16_t) + 1);
le16enc(rtic->flags.buf + rtic->flags.bufpos, ind);
@@ -242,17 +247,15 @@
for (n = utic->nums.entries; n > 0; n--) {
ind = le16dec(cap);
cap += sizeof(uint16_t);
- num = le32dec(cap);
- cap += sizeof(uint32_t);
+ num = _ti_decode_num(utic->rtype, &cap);
if (VALID_NUMERIC(num) &&
- _ti_find_cap(&rtic->nums, 'n', ind) == NULL)
+ _ti_find_cap(rtic, &rtic->nums, 'n', ind) == NULL)
{
grow_tbuf(&rtic->nums, sizeof(uint16_t) +
- sizeof(uint32_t));
+ _ti_numsize(rtic));
le16enc(rtic->nums.buf + rtic->nums.bufpos, ind);
rtic->nums.bufpos += sizeof(uint16_t);
- le32enc(rtic->nums.buf + rtic->nums.bufpos, num);
- rtic->nums.bufpos += sizeof(uint32_t);
+ _ti_encode_num(rtic, &rtic->nums, num);
rtic->nums.entries++;
}
}
@@ -264,7 +267,7 @@
len = le16dec(cap);
cap += sizeof(uint16_t);
if (len > 0 &&
- _ti_find_cap(&rtic->strs, 's', ind) == NULL)
+ _ti_find_cap(rtic, &rtic->strs, 's', ind) == NULL)
{
grow_tbuf(&rtic->strs, (sizeof(uint16_t) * 2) + len);
le16enc(rtic->strs.buf + rtic->strs.bufpos, ind);
@@ -295,8 +298,7 @@
continue;
break;
case 'n':
- num = le32dec(cap);
- cap += sizeof(uint32_t);
+ num = _ti_decode_num(utic->rtype, &cap);
if (!VALID_NUMERIC(num))
continue;
break;
@@ -328,7 +330,8 @@
if (term->base_term != NULL)
continue;
rtic = term->tic;
- while ((cap = _ti_find_extra(&rtic->extras, "use")) != NULL) {
+ while ((cap = _ti_find_extra(rtic, &rtic->extras, "use"))
+ != NULL) {
if (*cap++ != 's') {
dowarn("%s: use is not string", rtic->name);
break;
@@ -351,15 +354,16 @@
dowarn("%s: uses itself", rtic->name);
goto remove;
}
- if (_ti_find_extra(&utic->extras, "use") != NULL) {
+ if (_ti_find_extra(utic, &utic->extras, "use")
+ != NULL) {
skipped++;
break;
}
- cap = _ti_find_extra(&rtic->extras, "use");
+ cap = _ti_find_extra(rtic, &rtic->extras, "use");
merge(rtic, utic, flags);
remove:
/* The pointers may have changed, find the use again */
- cap = _ti_find_extra(&rtic->extras, "use");
+ cap = _ti_find_extra(rtic, &rtic->extras, "use");
if (cap == NULL)
dowarn("%s: use no longer exists - impossible",
rtic->name);
Index: lib/libterminfo/compile.c
===================================================================
RCS file: /cvsroot/src/lib/libterminfo/compile.c,v
retrieving revision 1.14
diff -u -u -r1.14 compile.c
--- lib/libterminfo/compile.c 13 Mar 2020 15:19:25 -0000 1.14
+++ lib/libterminfo/compile.c 27 Mar 2020 14:25:21 -0000
@@ -87,7 +87,7 @@
}
char *
-_ti_find_cap(TBUF *tbuf, char type, short ind)
+_ti_find_cap(TIC *tic, TBUF *tbuf, char type, short ind)
{
size_t n;
uint16_t num;
@@ -106,7 +106,7 @@
cap++;
break;
case 'n':
- cap += sizeof(uint32_t);
+ cap += _ti_numsize(tic);
break;
case 's':
num = le16dec(cap);
@@ -121,7 +121,7 @@
}
char *
-_ti_find_extra(TBUF *tbuf, const char *code)
+_ti_find_extra(TIC *tic, TBUF *tbuf, const char *code)
{
size_t n;
uint16_t num;
@@ -142,7 +142,7 @@
cap++;
break;
case 'n':
- cap += sizeof(uint32_t);
+ cap += _ti_numsize(tic);
break;
case 's':
num = le16dec(cap);
@@ -156,16 +156,58 @@
return NULL;
}
+void
+_ti_encode_num(TIC *tic, TBUF *rbuf, int num)
+{
+ if (_ti_numsize(tic) == sizeof(uint16_t)) {
+ if (num > SHRT_MAX)
+ num = SHRT_MAX;
+ le16enc(rbuf->buf + rbuf->bufpos, (uint16_t)num);
+ } else {
+ le32enc(rbuf->buf + rbuf->bufpos, (uint32_t)num);
+ }
+ rbuf->bufpos += _ti_numsize(tic);
+}
+
+int
+_ti_decode_num(int rtype, const char **cap)
+{
+ int rv;
+
+ if (rtype == TERMINFO_RTYPE_O1) {
+ rv = (int)le16dec(*cap);
+ *cap += sizeof(uint16_t);
+ } else {
+ rv = (int)le32dec(*cap);
+ *cap += sizeof(uint32_t);
+ }
+ return rv;
+}
+
+char *
+_ti_getname(int rtype, const char *orig)
+{
+ char *name;
+
+ if (rtype == TERMINFO_RTYPE) {
+ if (asprintf(&name, "%s@v3", orig) < 0)
+ name = NULL;
+ } else {
+ name = strdup(orig);
+ }
+ return name;
+}
+
size_t
-_ti_store_extra(TIC *tic, int wrn, char *id, char type, char flag, int num,
- char *str, size_t strl, int flags)
+_ti_store_extra(TIC *tic, int wrn, const char *id, char type, char flag,
+ int num, const char *str, size_t strl, int flags)
{
size_t l;
_DIAGASSERT(tic != NULL);
if (strcmp(id, "use") != 0) {
- if (_ti_find_extra(&tic->extras, id) != NULL)
+ if (_ti_find_extra(tic, &tic->extras, id) != NULL)
return 0;
if (!(flags & TIC_EXTRA)) {
if (wrn != 0)
@@ -182,7 +224,7 @@
}
if (!_ti_grow_tbuf(&tic->extras,
- l + strl + sizeof(uint16_t) + sizeof(uint32_t) + 1))
+ l + strl + sizeof(uint16_t) + _ti_numsize(tic) + 1))
return 0;
le16enc(tic->extras.buf + tic->extras.bufpos, (uint16_t)l);
tic->extras.bufpos += sizeof(uint16_t);
@@ -194,8 +236,7 @@
tic->extras.buf[tic->extras.bufpos++] = flag;
break;
case 'n':
- le32enc(tic->extras.buf + tic->extras.bufpos, (uint32_t)num);
- tic->extras.bufpos += sizeof(uint32_t);
+ _ti_encode_num(tic, &tic->extras, num);
break;
case 's':
le16enc(tic->extras.buf + tic->extras.bufpos, (uint16_t)strl);
@@ -239,7 +280,7 @@
return -1;
cap = *buf;
- *cap++ = TERMINFO_RTYPE; /* Record type 3 */
+ *cap++ = tic->rtype;
le16enc(cap, (uint16_t)len);
cap += sizeof(uint16_t);
memcpy(cap, tic->name, len);
@@ -451,6 +492,17 @@
return token;
}
+static int
+_ti_find_rtype(const char *cap)
+{
+ for (const char *ptr = cap; (ptr = strchr(ptr, '#')) != NULL;) {
+ if (strtol(++ptr, NULL, 0) > SHRT_MAX) {
+ return TERMINFO_RTYPE;
+ }
+ }
+ return TERMINFO_RTYPE_O1;
+}
+
TIC *
_ti_compile(char *cap, int flags)
{
@@ -467,7 +519,7 @@
name = _ti_get_token(&cap, ',');
if (name == NULL) {
- dowarn(flags, "no seperator found: %s", cap);
+ dowarn(flags, "no separator found: %s", cap);
return NULL;
}
desc = strrchr(name, '|');
@@ -494,14 +546,16 @@
if (tic == NULL)
return NULL;
+ tic->rtype = (flags & TIC_COMPAT_V1) ? TERMINFO_RTYPE_O1 :
+ _ti_find_rtype(cap);
buf.buf = NULL;
buf.buflen = 0;
- tic->name = strdup(name);
+ tic->name = _ti_getname(tic->rtype, name);
if (tic->name == NULL)
goto error;
if (alias != NULL && flags & TIC_ALIAS) {
- tic->alias = strdup(alias);
+ tic->alias = _ti_getname(tic->rtype, alias);
if (tic->alias == NULL)
goto error;
}
@@ -533,7 +587,7 @@
/* Don't use the string if we already have it */
ind = (short)_ti_strindex(token);
if (ind != -1 &&
- _ti_find_cap(&tic->strs, 's', ind) != NULL)
+ _ti_find_cap(tic, &tic->strs, 's', ind) != NULL)
continue;
/* Encode the string to our scratch buffer */
@@ -579,7 +633,7 @@
/* Don't use the number if we already have it */
ind = (short)_ti_numindex(token);
if (ind != -1 &&
- _ti_find_cap(&tic->nums, 'n', ind) != NULL)
+ _ti_find_cap(tic, &tic->nums, 'n', ind) != NULL)
continue;
cnum = strtol(p, &e, 0);
@@ -600,14 +654,12 @@
num, NULL, 0, flags);
else {
if (_ti_grow_tbuf(&tic->nums,
- sizeof(uint16_t) + sizeof(uint32_t))==NULL)
+ sizeof(uint16_t) + _ti_numsize(tic))==NULL)
goto error;
le16enc(tic->nums.buf + tic->nums.bufpos,
(uint16_t)ind);
tic->nums.bufpos += sizeof(uint16_t);
- le32enc(tic->nums.buf + tic->nums.bufpos,
- (uint32_t)num);
- tic->nums.bufpos += sizeof(uint32_t);
+ _ti_encode_num(tic, &tic->nums, num);
tic->nums.entries++;
}
continue;
@@ -622,21 +674,22 @@
ind = (short)_ti_flagindex(token);
if (ind == -1 && flag == CANCELLED_BOOLEAN) {
if ((ind = (short)_ti_numindex(token)) != -1) {
- if (_ti_find_cap(&tic->nums, 'n', ind) != NULL)
+ if (_ti_find_cap(tic, &tic->nums, 'n', ind)
+ != NULL)
continue;
- if (_ti_grow_tbuf(&tic->nums,
- sizeof(uint16_t) * 2) == NULL)
+ if (_ti_grow_tbuf(&tic->nums, sizeof(uint16_t)
+ + _ti_numsize(tic)) == NULL)
goto error;
le16enc(tic->nums.buf + tic->nums.bufpos,
(uint16_t)ind);
tic->nums.bufpos += sizeof(uint16_t);
- le32enc(tic->nums.buf + tic->nums.bufpos,
- (uint32_t)CANCELLED_NUMERIC);
- tic->nums.bufpos += sizeof(uint32_t);
+ _ti_encode_num(tic, &tic->nums,
+ CANCELLED_NUMERIC);
tic->nums.entries++;
continue;
} else if ((ind = (short)_ti_strindex(token)) != -1) {
- if (_ti_find_cap(&tic->strs, 's', ind) != NULL)
+ if (_ti_find_cap(tic, &tic->strs, 's', ind)
+ != NULL)
continue;
if (_ti_grow_tbuf(&tic->strs,
(sizeof(uint16_t) * 2) + 1) == NULL)
@@ -652,7 +705,7 @@
if (ind == -1)
_ti_store_extra(tic, 1, token, 'f', flag, 0, NULL, 0,
flags);
- else if (_ti_find_cap(&tic->flags, 'f', ind) == NULL) {
+ else if (_ti_find_cap(tic, &tic->flags, 'f', ind) == NULL) {
if (_ti_grow_tbuf(&tic->flags, sizeof(uint16_t) + 1)
== NULL)
goto error;
Index: lib/libterminfo/term.c
===================================================================
RCS file: /cvsroot/src/lib/libterminfo/term.c,v
retrieving revision 1.30
diff -u -u -r1.30 term.c
--- lib/libterminfo/term.c 13 Mar 2020 15:19:25 -0000 1.30
+++ lib/libterminfo/term.c 27 Mar 2020 14:25:21 -0000
@@ -48,7 +48,7 @@
* Although we can read v1 structure (which includes v2 alias records)
* we really want a v3 structure to get numerics of type int rather than short.
*/
-#define _PATH_TERMINFO "/usr/share/misc/terminfo2:/usr/share/misc/terminfo"
+#define _PATH_TERMINFO "/usr/share/misc/terminfo"
static char __ti_database[PATH_MAX];
const char *_ti_database;
@@ -150,13 +150,7 @@
for (; num != 0; num--) {
ind = le16dec(cap);
cap += sizeof(uint16_t);
- if (rtype == TERMINFO_RTYPE_O1) {
- term->nums[ind] = (int)le16dec(cap);
- cap += sizeof(uint16_t);
- } else {
- term->nums[ind] = (int)le32dec(cap);
- cap += sizeof(uint32_t);
- }
+ term->nums[ind] = _ti_decode_num(rtype, &cap);
if (flags == 0 && !VALID_NUMERIC(term->nums[ind]))
term->nums[ind] = ABSENT_NUMERIC;
}
@@ -213,13 +207,7 @@
break;
case 'n':
ud->flag = ABSENT_BOOLEAN;
- if (rtype == TERMINFO_RTYPE_O1) {
- ud->num = (int)le16dec(cap);
- cap += sizeof(uint16_t);
- } else {
- ud->num = (int)le32dec(cap);
- cap += sizeof(uint32_t);
- }
+ ud->num = _ti_decode_num(rtype, &cap);
if (flags == 0 &&
!VALID_NUMERIC(ud->num))
ud->num = ABSENT_NUMERIC;
@@ -323,7 +311,7 @@
goto out;
/* If the entry is an alias, load the indexed terminfo description. */
- if (data8[0] == 2) {
+ if (data8[0] == TERMINFO_ALIAS) {
if (cdbr_get(db, le32dec(data8 + 1), &data, &len))
goto out;
data8 = data;
@@ -453,6 +441,15 @@
int r;
size_t i;
const struct compiled_term *t;
+ char *namev3;
+
+ namev3 = _ti_getname(TERMINFO_RTYPE, name);
+ if (namev3 != NULL) {
+ r = _ti_findterm(term, namev3, flags);
+ free(namev3);
+ if (r == 1)
+ return r;
+ }
r = _ti_findterm(term, name, flags);
if (r == 1)
Index: lib/libterminfo/term_private.h
===================================================================
RCS file: /cvsroot/src/lib/libterminfo/term_private.h,v
retrieving revision 1.12
diff -u -u -r1.12 term_private.h
--- lib/libterminfo/term_private.h 13 Mar 2020 15:19:25 -0000 1.12
+++ lib/libterminfo/term_private.h 27 Mar 2020 14:25:21 -0000
@@ -140,6 +140,7 @@
#define TIC_ALIAS (1 << 2)
#define TIC_COMMENT (1 << 3)
#define TIC_EXTRA (1 << 4)
+#define TIC_COMPAT_V1 (1 << 5)
#define UINT16_T_MAX 0xffff
@@ -154,18 +155,25 @@
char *name;
char *alias;
char *desc;
+ int rtype;
TBUF flags;
TBUF nums;
TBUF strs;
TBUF extras;
} TIC;
+#define _ti_numsize(tic) \
+ ((tic)->rtype == TERMINFO_RTYPE_O1 ? sizeof(uint16_t) : sizeof(uint32_t))
+
char *_ti_grow_tbuf(TBUF *, size_t);
char *_ti_get_token(char **, char);
-char *_ti_find_cap(TBUF *, char, short);
-char *_ti_find_extra(TBUF *, const char *);
-size_t _ti_store_extra(TIC *, int, char *, char, char, int,
- char *, size_t, int);
+char *_ti_find_cap(TIC *, TBUF *, char, short);
+char *_ti_find_extra(TIC *, TBUF *, const char *);
+char *_ti_getname(int, const char *);
+size_t _ti_store_extra(TIC *, int, const char *, char, char, int,
+ const char *, size_t, int);
+void _ti_encode_num(TIC *, TBUF *, int );
+int _ti_decode_num(int, const char **);
TIC *_ti_compile(char *, int);
ssize_t _ti_flatten(uint8_t **, const TIC *);
void _ti_freetic(TIC *);
Index: lib/libterminfo/tparm.c
===================================================================
RCS file: /cvsroot/src/lib/libterminfo/tparm.c,v
retrieving revision 1.17
diff -u -u -r1.17 tparm.c
--- lib/libterminfo/tparm.c 4 May 2017 09:42:23 -0000 1.17
+++ lib/libterminfo/tparm.c 27 Mar 2020 14:25:21 -0000
@@ -265,7 +265,8 @@
/* Handle formatting. */
fp = fmt;
*fp++ = '%';
- done = dot = minus = width = precision = 0;
+ done = dot = minus = 0;
+ width = precision = 0;
val = 0;
while (done == 0 && (size_t)(fp - fmt) < sizeof(fmt)) {
switch (c) {
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