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authorRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
committerRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
commita388f199193767bacbb38b172ab89cb84369736c (patch)
treea1816f5667d2280b970ca44e407bac8cc4496c0a /contrib/ncurses/ncurses/tinfo/read_entry.c
parentaa59d4d4c5dda7e1c6f9dc0cc6edc58992a525c7 (diff)
downloadsrc-a388f199193767bacbb38b172ab89cb84369736c.tar.gz
src-a388f199193767bacbb38b172ab89cb84369736c.zip
- Flatten the vendor area
Notes
Notes: svn path=/vendor/ncurses/dist/; revision=184786
Diffstat (limited to 'contrib/ncurses/ncurses/tinfo/read_entry.c')
-rw-r--r--contrib/ncurses/ncurses/tinfo/read_entry.c544
1 files changed, 0 insertions, 544 deletions
diff --git a/contrib/ncurses/ncurses/tinfo/read_entry.c b/contrib/ncurses/ncurses/tinfo/read_entry.c
deleted file mode 100644
index 6a050ee78e66..000000000000
--- a/contrib/ncurses/ncurses/tinfo/read_entry.c
+++ /dev/null
@@ -1,544 +0,0 @@
-/****************************************************************************
- * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
- * *
- * Permission is hereby granted, free of charge, to any person obtaining a *
- * copy of this software and associated documentation files (the *
- * "Software"), to deal in the Software without restriction, including *
- * without limitation the rights to use, copy, modify, merge, publish, *
- * distribute, distribute with modifications, sublicense, and/or sell *
- * copies of the Software, and to permit persons to whom the Software is *
- * furnished to do so, subject to the following conditions: *
- * *
- * The above copyright notice and this permission notice shall be included *
- * in all copies or substantial portions of the Software. *
- * *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
- * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
- * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
- * *
- * Except as contained in this notice, the name(s) of the above copyright *
- * holders shall not be used in advertising or otherwise to promote the *
- * sale, use or other dealings in this Software without prior written *
- * authorization. *
- ****************************************************************************/
-
-/****************************************************************************
- * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
- * and: Eric S. Raymond <esr@snark.thyrsus.com> *
- * and: Thomas E. Dickey 1996-on *
- ****************************************************************************/
-
-/*
- * read_entry.c -- Routine for reading in a compiled terminfo file
- */
-
-#include <curses.priv.h>
-#include <hashed_db.h>
-
-#include <tic.h>
-#include <term_entry.h>
-
-MODULE_ID("$Id: read_entry.c,v 1.100 2007/11/17 23:56:50 tom Exp $")
-
-#define TYPE_CALLOC(type,elts) typeCalloc(type, (unsigned)(elts))
-
-#if USE_DATABASE
-static void
-convert_shorts(char *buf, short *Numbers, int count)
-{
- int i;
- for (i = 0; i < count; i++) {
- if (IS_NEG1(buf + 2 * i))
- Numbers[i] = ABSENT_NUMERIC;
- else if (IS_NEG2(buf + 2 * i))
- Numbers[i] = CANCELLED_NUMERIC;
- else
- Numbers[i] = LOW_MSB(buf + 2 * i);
- TR(TRACE_DATABASE, ("get Numbers[%d]=%d", i, Numbers[i]));
- }
-}
-
-static void
-convert_strings(char *buf, char **Strings, int count, int size, char *table)
-{
- int i;
- char *p;
-
- for (i = 0; i < count; i++) {
- if (IS_NEG1(buf + 2 * i)) {
- Strings[i] = ABSENT_STRING;
- } else if (IS_NEG2(buf + 2 * i)) {
- Strings[i] = CANCELLED_STRING;
- } else if (LOW_MSB(buf + 2 * i) > size) {
- Strings[i] = ABSENT_STRING;
- } else {
- Strings[i] = (LOW_MSB(buf + 2 * i) + table);
- TR(TRACE_DATABASE, ("Strings[%d] = %s", i, _nc_visbuf(Strings[i])));
- }
-
- /* make sure all strings are NUL terminated */
- if (VALID_STRING(Strings[i])) {
- for (p = Strings[i]; p <= table + size; p++)
- if (*p == '\0')
- break;
- /* if there is no NUL, ignore the string */
- if (p > table + size)
- Strings[i] = ABSENT_STRING;
- }
- }
-}
-
-static int
-fake_read(char *src, int *offset, int limit, char *dst, unsigned want)
-{
- int have = (limit - *offset);
-
- if (have > 0) {
- if ((int) want > have)
- want = have;
- memcpy(dst, src + *offset, want);
- *offset += want;
- } else {
- want = 0;
- }
- return (int) want;
-}
-
-#define Read(buf, count) fake_read(buffer, &offset, limit, buf, count)
-
-#define read_shorts(buf, count) \
- (Read(buf, (unsigned) (count)*2) == (int) (count)*2)
-
-#define even_boundary(value) \
- if ((value) % 2 != 0) Read(buf, 1)
-
-NCURSES_EXPORT(int)
-_nc_read_termtype(TERMTYPE *ptr, char *buffer, int limit)
-/* return 1 if read, 0 if not found or garbled */
-{
- int offset = 0;
- int name_size, bool_count, num_count, str_count, str_size;
- int i;
- char buf[MAX_ENTRY_SIZE + 1];
- char *string_table;
- unsigned want, have;
-
- TR(TRACE_DATABASE, ("READ termtype header @%d", offset));
-
- memset(ptr, 0, sizeof(*ptr));
-
- /* grab the header */
- if (!read_shorts(buf, 6)
- || !IS_TIC_MAGIC(buf)) {
- return (TGETENT_NO);
- }
-
- name_size = LOW_MSB(buf + 2);
- bool_count = LOW_MSB(buf + 4);
- num_count = LOW_MSB(buf + 6);
- str_count = LOW_MSB(buf + 8);
- str_size = LOW_MSB(buf + 10);
-
- TR(TRACE_DATABASE,
- ("TERMTYPE name_size=%d, bool=%d/%d, num=%d/%d str=%d/%d(%d)",
- name_size, bool_count, BOOLCOUNT, num_count, NUMCOUNT,
- str_count, STRCOUNT, str_size));
- if (name_size < 0
- || bool_count < 0
- || num_count < 0
- || str_count < 0
- || str_size < 0) {
- return (TGETENT_NO);
- }
-
- want = str_size + name_size + 1;
- if (str_size) {
- /* try to allocate space for the string table */
- if (str_count * 2 >= (int) sizeof(buf)
- || (string_table = typeMalloc(char, want)) == 0) {
- return (TGETENT_NO);
- }
- } else {
- str_count = 0;
- if ((string_table = typeMalloc(char, want)) == 0) {
- return (TGETENT_NO);
- }
- }
-
- /* grab the name (a null-terminated string) */
- want = min(MAX_NAME_SIZE, (unsigned) name_size);
- ptr->str_table = string_table;
- ptr->term_names = string_table;
- if ((have = Read(ptr->term_names, want)) != want) {
- memset(ptr->term_names + have, 0, want - have);
- }
- ptr->term_names[want] = '\0';
- string_table += (want + 1);
-
- if (have > MAX_NAME_SIZE)
- offset = (have - MAX_NAME_SIZE);
-
- /* grab the booleans */
- if ((ptr->Booleans = TYPE_CALLOC(NCURSES_SBOOL,
- max(BOOLCOUNT, bool_count))) == 0
- || Read(ptr->Booleans, (unsigned) bool_count) < bool_count) {
- return (TGETENT_NO);
- }
-
- /*
- * If booleans end on an odd byte, skip it. The machine they
- * originally wrote terminfo on must have been a 16-bit
- * word-oriented machine that would trap out if you tried a
- * word access off a 2-byte boundary.
- */
- even_boundary(name_size + bool_count);
-
- /* grab the numbers */
- if ((ptr->Numbers = TYPE_CALLOC(short, max(NUMCOUNT, num_count))) == 0
- || !read_shorts(buf, num_count)) {
- return (TGETENT_NO);
- }
- convert_shorts(buf, ptr->Numbers, num_count);
-
- if ((ptr->Strings = TYPE_CALLOC(char *, max(STRCOUNT, str_count))) == 0)
- return (TGETENT_NO);
-
- if (str_count) {
- /* grab the string offsets */
- if (!read_shorts(buf, str_count)) {
- return (TGETENT_NO);
- }
- /* finally, grab the string table itself */
- if (Read(string_table, (unsigned) str_size) != str_size)
- return (TGETENT_NO);
- convert_strings(buf, ptr->Strings, str_count, str_size, string_table);
- }
-#if NCURSES_XNAMES
-
- ptr->num_Booleans = BOOLCOUNT;
- ptr->num_Numbers = NUMCOUNT;
- ptr->num_Strings = STRCOUNT;
-
- /*
- * Read extended entries, if any, after the normal end of terminfo data.
- */
- even_boundary(str_size);
- TR(TRACE_DATABASE, ("READ extended_header @%d", offset));
- if (_nc_user_definable && read_shorts(buf, 5)) {
- int ext_bool_count = LOW_MSB(buf + 0);
- int ext_num_count = LOW_MSB(buf + 2);
- int ext_str_count = LOW_MSB(buf + 4);
- int ext_str_size = LOW_MSB(buf + 6);
- int ext_str_limit = LOW_MSB(buf + 8);
- unsigned need = (ext_bool_count + ext_num_count + ext_str_count);
- int base = 0;
-
- if (need >= sizeof(buf)
- || ext_str_size >= (int) sizeof(buf)
- || ext_str_limit >= (int) sizeof(buf)
- || ext_bool_count < 0
- || ext_num_count < 0
- || ext_str_count < 0
- || ext_str_size < 0
- || ext_str_limit < 0)
- return (TGETENT_NO);
-
- ptr->num_Booleans = BOOLCOUNT + ext_bool_count;
- ptr->num_Numbers = NUMCOUNT + ext_num_count;
- ptr->num_Strings = STRCOUNT + ext_str_count;
-
- ptr->Booleans = typeRealloc(NCURSES_SBOOL, ptr->num_Booleans, ptr->Booleans);
- ptr->Numbers = typeRealloc(short, ptr->num_Numbers, ptr->Numbers);
- ptr->Strings = typeRealloc(char *, ptr->num_Strings, ptr->Strings);
-
- TR(TRACE_DATABASE, ("extended header is %d/%d/%d(%d:%d)",
- ext_bool_count, ext_num_count, ext_str_count,
- ext_str_size, ext_str_limit));
-
- TR(TRACE_DATABASE, ("READ %d extended-booleans @%d",
- ext_bool_count, offset));
- if ((ptr->ext_Booleans = ext_bool_count) != 0) {
- if (Read(ptr->Booleans + BOOLCOUNT, (unsigned)
- ext_bool_count) != ext_bool_count)
- return (TGETENT_NO);
- }
- even_boundary(ext_bool_count);
-
- TR(TRACE_DATABASE, ("READ %d extended-numbers @%d",
- ext_num_count, offset));
- if ((ptr->ext_Numbers = ext_num_count) != 0) {
- if (!read_shorts(buf, ext_num_count))
- return (TGETENT_NO);
- TR(TRACE_DATABASE, ("Before converting extended-numbers"));
- convert_shorts(buf, ptr->Numbers + NUMCOUNT, ext_num_count);
- }
-
- TR(TRACE_DATABASE, ("READ extended-offsets @%d", offset));
- if ((ext_str_count || need)
- && !read_shorts(buf, ext_str_count + need))
- return (TGETENT_NO);
-
- TR(TRACE_DATABASE, ("READ %d bytes of extended-strings @%d",
- ext_str_limit, offset));
-
- if (ext_str_limit) {
- if ((ptr->ext_str_table = typeMalloc(char, ext_str_limit)) == 0)
- return (TGETENT_NO);
- if (Read(ptr->ext_str_table, (unsigned) ext_str_limit) != ext_str_limit)
- return (TGETENT_NO);
- TR(TRACE_DATABASE, ("first extended-string is %s", _nc_visbuf(ptr->ext_str_table)));
- }
-
- if ((ptr->ext_Strings = ext_str_count) != 0) {
- TR(TRACE_DATABASE,
- ("Before computing extended-string capabilities str_count=%d, ext_str_count=%d",
- str_count, ext_str_count));
- convert_strings(buf, ptr->Strings + str_count, ext_str_count,
- ext_str_limit, ptr->ext_str_table);
- for (i = ext_str_count - 1; i >= 0; i--) {
- TR(TRACE_DATABASE, ("MOVE from [%d:%d] %s",
- i, i + str_count,
- _nc_visbuf(ptr->Strings[i + str_count])));
- ptr->Strings[i + STRCOUNT] = ptr->Strings[i + str_count];
- if (VALID_STRING(ptr->Strings[i + STRCOUNT]))
- base += (strlen(ptr->Strings[i + STRCOUNT]) + 1);
- TR(TRACE_DATABASE, ("... to [%d] %s",
- i + STRCOUNT,
- _nc_visbuf(ptr->Strings[i + STRCOUNT])));
- }
- }
-
- if (need) {
- if ((ptr->ext_Names = TYPE_CALLOC(char *, need)) == 0)
- return (TGETENT_NO);
- TR(TRACE_DATABASE,
- ("ext_NAMES starting @%d in extended_strings, first = %s",
- base, _nc_visbuf(ptr->ext_str_table + base)));
- convert_strings(buf + (2 * ext_str_count),
- ptr->ext_Names,
- (int) need,
- ext_str_limit, ptr->ext_str_table + base);
- }
-
- T(("...done reading terminfo bool %d(%d) num %d(%d) str %d(%d)",
- ptr->num_Booleans, ptr->ext_Booleans,
- ptr->num_Numbers, ptr->ext_Numbers,
- ptr->num_Strings, ptr->ext_Strings));
-
- TR(TRACE_DATABASE, ("extend: num_Booleans:%d", ptr->num_Booleans));
- } else
-#endif /* NCURSES_XNAMES */
- {
- T(("...done reading terminfo bool %d num %d str %d",
- bool_count, num_count, str_count));
-#if NCURSES_XNAMES
- TR(TRACE_DATABASE, ("normal: num_Booleans:%d", ptr->num_Booleans));
-#endif
- }
-
- for (i = bool_count; i < BOOLCOUNT; i++)
- ptr->Booleans[i] = FALSE;
- for (i = num_count; i < NUMCOUNT; i++)
- ptr->Numbers[i] = ABSENT_NUMERIC;
- for (i = str_count; i < STRCOUNT; i++)
- ptr->Strings[i] = ABSENT_STRING;
-
- return (TGETENT_YES);
-}
-
-/*
- * int
- * _nc_read_file_entry(filename, ptr)
- *
- * Read the compiled terminfo entry in the given file into the
- * structure pointed to by ptr, allocating space for the string
- * table.
- */
-NCURSES_EXPORT(int)
-_nc_read_file_entry(const char *const filename, TERMTYPE *ptr)
-/* return 1 if read, 0 if not found or garbled */
-{
- int code, fd = -1;
- int limit;
- char buffer[MAX_ENTRY_SIZE + 1];
-
- if (_nc_access(filename, R_OK) < 0
- || (fd = open(filename, O_RDONLY | O_BINARY)) < 0) {
- T(("cannot open terminfo %s (errno=%d)", filename, errno));
- code = TGETENT_NO;
- } else {
- if ((limit = read(fd, buffer, sizeof(buffer))) > 0) {
-
- T(("read terminfo %s", filename));
- if ((code = _nc_read_termtype(ptr, buffer, limit)) == TGETENT_NO) {
- _nc_free_termtype(ptr);
- }
- } else {
- code = TGETENT_NO;
- }
- close(fd);
- }
-
- return (code);
-}
-
-/*
- * Build a terminfo pathname and try to read the data. Returns TGETENT_YES on
- * success, TGETENT_NO on failure.
- */
-static int
-_nc_read_tic_entry(char *filename,
- unsigned limit,
- const char *const path,
- const char *name,
- TERMTYPE *const tp)
-{
- int result = TGETENT_NO;
-
- /*
- * If we are looking in a directory, assume the entry is a file under that,
- * according to the normal rules.
- *
- * FIXME - add caseless-filename fixup.
- */
- if (_nc_is_dir_path(path)) {
- unsigned need = 4 + strlen(path) + strlen(name);
-
- if (need <= limit) {
- (void) sprintf(filename, "%s/" LEAF_FMT "/%s", path, *name, name);
- result = _nc_read_file_entry(filename, tp);
- }
- }
-#if USE_HASHED_DB
- else {
- static const char suffix[] = DBM_SUFFIX;
- DB *capdbp;
- unsigned lens = sizeof(suffix) - 1;
- unsigned size = strlen(path);
- unsigned need = lens + size;
-
- if (need <= limit) {
- if (size >= lens
- && !strcmp(path + size - lens, suffix))
- (void) strcpy(filename, path);
- else
- (void) sprintf(filename, "%s%s", path, suffix);
-
- /*
- * It would be nice to optimize the dbopen/close activity, as
- * done in the cgetent implementation for tc= clauses. However,
- * since we support multiple database locations, we cannot do
- * that.
- */
- if ((capdbp = _nc_db_open(filename, FALSE)) != 0) {
- DBT key, data;
- int reccnt = 0;
- char *save = strdup(name);
-
- memset(&key, 0, sizeof(key));
- key.data = save;
- key.size = strlen(save);
-
- /*
- * This lookup could return termcap data, which we do not want.
- * We are looking for compiled (binary) terminfo data.
- *
- * cgetent uses a two-level lookup. On the first it uses the
- * given name to return a record containing only the aliases
- * for an entry. On the second (using that list of aliases as
- * a key), it returns the content of the terminal description.
- * We expect second lookup to return data beginning with the
- * same set of aliases.
- *
- * For compiled terminfo, the list of aliases in the second
- * case will be null-terminated. A termcap entry will not be,
- * and will run on into the description. So we can easily
- * distinguish between the two (source/binary) by checking the
- * lengths.
- */
- while (_nc_db_get(capdbp, &key, &data) == 0) {
- int used = data.size - 1;
- char *have = (char *) data.data;
-
- if (*have++ == 0) {
- if (data.size > key.size
- && IS_TIC_MAGIC(have)) {
- result = _nc_read_termtype(tp, have, used);
- if (result == TGETENT_NO) {
- _nc_free_termtype(tp);
- }
- }
- break;
- }
-
- /*
- * Just in case we have a corrupt database, do not waste
- * time with it.
- */
- if (++reccnt >= 3)
- break;
-
- /*
- * Prepare for the second level.
- */
- key.data = have;
- key.size = used;
- }
-
- _nc_db_close(capdbp);
- free(save);
- }
- }
- }
-#endif
- return result;
-}
-#endif /* USE_DATABASE */
-
-/*
- * _nc_read_entry(char *name, char *filename, TERMTYPE *tp)
- *
- * Find and read the compiled entry for a given terminal type,
- * if it exists. We take pains here to make sure no combination
- * of environment variables and terminal type name can be used to
- * overrun the file buffer.
- */
-
-NCURSES_EXPORT(int)
-_nc_read_entry(const char *const name, char *const filename, TERMTYPE *const tp)
-{
- int code = TGETENT_NO;
-
- if (strlen(name) == 0
- || strcmp(name, ".") == 0
- || strcmp(name, "..") == 0
- || _nc_pathlast(name) != 0
- || strchr(name, NCURSES_PATHSEP) != 0) {
- T(("illegal or missing entry name '%s'", name));
- } else {
-#if USE_DATABASE
- DBDIRS state = dbdTIC;
- int offset = 0;
- const char *path;
-
- while ((path = _nc_next_db(&state, &offset)) != 0) {
- code = _nc_read_tic_entry(filename, PATH_MAX, path, name, tp);
- if (code == TGETENT_YES) {
- _nc_last_db();
- break;
- }
- }
-#endif
-#if USE_TERMCAP
- if (code != TGETENT_YES) {
- code = _nc_read_termcap_entry(name, tp);
- sprintf(filename, "%.*s", PATH_MAX - 1, _nc_get_source());
- }
-#endif
- }
- return code;
-}