/****************************************************************************
- * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
+ * Copyright 2018-2022,2023 Thomas E. Dickey *
+ * Copyright 1998-2013,2017 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 *
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
****************************************************************************/
/*
#include <curses.priv.h>
#include <tic.h>
-#include <term_entry.h>
-MODULE_ID("$Id: alloc_entry.c,v 1.37 2002/09/07 20:04:15 tom Exp $")
+MODULE_ID("$Id: alloc_entry.c,v 1.79 2023/09/15 08:16:12 tom Exp $")
#define ABSENT_OFFSET -1
#define CANCELLED_OFFSET -2
-#define MAX_STRTAB 4096 /* documented maximum entry size */
-
static char *stringbuf; /* buffer for string capabilities */
static size_t next_free; /* next free character in stringbuf */
NCURSES_EXPORT(void)
-_nc_init_entry(TERMTYPE * const tp)
+_nc_init_entry(ENTRY * const tp)
/* initialize a terminal type data block */
{
- int i;
-
- if (stringbuf == 0)
- stringbuf = malloc(MAX_STRTAB);
+ DEBUG(2, (T_CALLED("_nc_init_entry(tp=%p)"), (void *) tp));
-#if NCURSES_XNAMES
- tp->num_Booleans = BOOLCOUNT;
- tp->num_Numbers = NUMCOUNT;
- tp->num_Strings = STRCOUNT;
- tp->ext_Booleans = 0;
- tp->ext_Numbers = 0;
- tp->ext_Strings = 0;
+ if (tp == NULL) {
+#if NO_LEAKS
+ if (stringbuf != NULL) {
+ FreeAndNull(stringbuf);
+ }
+ return;
+#else
+ _nc_err_abort("_nc_init_entry called without initialization");
#endif
- if (tp->Booleans == 0)
- tp->Booleans = typeMalloc(char, BOOLCOUNT);
- if (tp->Numbers == 0)
- tp->Numbers = typeMalloc(short, NUMCOUNT);
- if (tp->Strings == 0)
- tp->Strings = typeMalloc(char *, STRCOUNT);
+ }
- for_each_boolean(i, tp)
- tp->Booleans[i] = FALSE;
+ if (stringbuf == NULL)
+ TYPE_CALLOC(char, (size_t) MAX_ENTRY_SIZE, stringbuf);
- for_each_number(i, tp)
- tp->Numbers[i] = ABSENT_NUMERIC;
+ next_free = 0;
- for_each_string(i, tp)
- tp->Strings[i] = ABSENT_STRING;
+ _nc_init_termtype(&(tp->tterm));
- next_free = 0;
+ DEBUG(2, (T_RETURN("")));
}
NCURSES_EXPORT(ENTRY *)
_nc_copy_entry(ENTRY * oldp)
{
- ENTRY *newp = typeCalloc(ENTRY, 1);
+ ENTRY *newp;
+
+ DEBUG(2, (T_CALLED("_nc_copy_entry(oldp=%p)"), (void *) oldp));
- if (newp != 0) {
+ newp = typeCalloc(ENTRY, 1);
+ if (newp != NULL) {
*newp = *oldp;
- _nc_copy_termtype(&(newp->tterm), &(oldp->tterm));
+ _nc_copy_termtype2(&(newp->tterm), &(oldp->tterm));
}
- return newp;
+
+ DEBUG(2, (T_RETURN("%p"), (void *) newp));
+ return (newp);
}
-NCURSES_EXPORT(char *)
-_nc_save_str(const char *const string)
/* save a copy of string in the string buffer */
+NCURSES_EXPORT(char *)
+_nc_save_str(const char *string)
{
+ char *result = 0;
size_t old_next_free = next_free;
- size_t len = strlen(string) + 1;
- if (next_free + len < MAX_STRTAB) {
- strcpy(&stringbuf[next_free], string);
- DEBUG(7, ("Saved string %s", _nc_visbuf(string)));
- DEBUG(7, ("at location %d", (int) next_free));
- next_free += len;
+ if (stringbuf != NULL) {
+ size_t len;
+
+ if (!VALID_STRING(string))
+ string = "";
+ len = strlen(string) + 1;
+
+ if (len == 1 && next_free != 0) {
+ /*
+ * Cheat a little by making an empty string point to the end of the
+ * previous string.
+ */
+ if (next_free < MAX_ENTRY_SIZE) {
+ result = (stringbuf + next_free - 1);
+ }
+ } else if (next_free + len < MAX_ENTRY_SIZE) {
+ _nc_STRCPY(&stringbuf[next_free], string, MAX_ENTRY_SIZE);
+ DEBUG(7, ("Saved string %s", _nc_visbuf(string)));
+ DEBUG(7, ("at location %d", (int) next_free));
+ next_free += len;
+ result = (stringbuf + old_next_free);
+ } else {
+ _nc_warning("Too much data, some is lost: %s", string);
+ }
}
- return (stringbuf + old_next_free);
+ return result;
}
NCURSES_EXPORT(void)
_nc_wrap_entry(ENTRY * const ep, bool copy_strings)
/* copy the string parts to allocated storage, preserving pointers to it */
{
- int offsets[MAX_ENTRY_SIZE / 2], useoffsets[MAX_USES];
- int i, n;
- TERMTYPE *tp = &(ep->tterm);
-
+ int offsets[MAX_ENTRY_SIZE / sizeof(short)];
+ int useoffsets[MAX_USES];
+ unsigned i, n;
+ unsigned nuses;
+ TERMTYPE2 *tp;
+
+ DEBUG(2, (T_CALLED("_nc_wrap_entry(ep=%p, copy_strings=%d)"), (void *)
+ ep, copy_strings));
+ if (ep == NULL || stringbuf == NULL)
+ _nc_err_abort("_nc_wrap_entry called without initialization");
+
+ nuses = ep->nuses;
+ tp = &(ep->tterm);
if (copy_strings) {
next_free = 0; /* clear static storage */
/* copy term_names, Strings, uses */
tp->term_names = _nc_save_str(tp->term_names);
for_each_string(i, tp) {
- if (tp->Strings[i] != ABSENT_STRING &&
- tp->Strings[i] != CANCELLED_STRING) {
+ if (VALID_STRING(tp->Strings[i])) {
tp->Strings[i] = _nc_save_str(tp->Strings[i]);
}
}
- for (i = 0; i < ep->nuses; i++) {
+ for (i = 0; i < nuses; i++) {
if (ep->uses[i].name == 0) {
ep->uses[i].name = _nc_save_str(ep->uses[i].name);
}
free(tp->str_table);
}
- n = tp->term_names - stringbuf;
+ assert(tp->term_names >= stringbuf);
+ n = (unsigned) (tp->term_names - stringbuf);
for_each_string(i, &(ep->tterm)) {
- if (tp->Strings[i] == ABSENT_STRING)
- offsets[i] = ABSENT_OFFSET;
- else if (tp->Strings[i] == CANCELLED_STRING)
- offsets[i] = CANCELLED_OFFSET;
- else
- offsets[i] = tp->Strings[i] - stringbuf;
+ if (i < SIZEOF(offsets)) {
+ if (tp->Strings[i] == ABSENT_STRING) {
+ offsets[i] = ABSENT_OFFSET;
+ } else if (tp->Strings[i] == CANCELLED_STRING) {
+ offsets[i] = CANCELLED_OFFSET;
+ } else {
+ offsets[i] = (int) (tp->Strings[i] - stringbuf);
+ }
+ }
}
- for (i = 0; i < ep->nuses; i++) {
+ for (i = 0; i < nuses; i++) {
if (ep->uses[i].name == 0)
useoffsets[i] = ABSENT_OFFSET;
else
- useoffsets[i] = ep->uses[i].name - stringbuf;
+ useoffsets[i] = (int) (ep->uses[i].name - stringbuf);
}
- if ((tp->str_table = typeMalloc(char, next_free)) == (char *) 0)
- _nc_err_abort(MSG_NO_MEMORY);
+ TYPE_MALLOC(char, next_free, tp->str_table);
(void) memcpy(tp->str_table, stringbuf, next_free);
tp->term_names = tp->str_table + n;
for_each_string(i, &(ep->tterm)) {
- if (offsets[i] == ABSENT_OFFSET)
- tp->Strings[i] = ABSENT_STRING;
- else if (offsets[i] == CANCELLED_OFFSET)
- tp->Strings[i] = CANCELLED_STRING;
- else
- tp->Strings[i] = tp->str_table + offsets[i];
+ if (i < SIZEOF(offsets)) {
+ if (offsets[i] == ABSENT_OFFSET) {
+ tp->Strings[i] = ABSENT_STRING;
+ } else if (offsets[i] == CANCELLED_OFFSET) {
+ tp->Strings[i] = CANCELLED_STRING;
+ } else {
+ tp->Strings[i] = tp->str_table + offsets[i];
+ }
+ }
}
#if NCURSES_XNAMES
if (!copy_strings) {
- if ((n = NUM_EXT_NAMES(tp)) != 0) {
- unsigned length = 0;
- for (i = 0; i < n; i++) {
- length += strlen(tp->ext_Names[i]) + 1;
- offsets[i] = tp->ext_Names[i] - stringbuf;
- }
- if ((tp->ext_str_table = typeMalloc(char, length)) == 0)
- _nc_err_abort(MSG_NO_MEMORY);
- for (i = 0, length = 0; i < n; i++) {
- tp->ext_Names[i] = tp->ext_str_table + length;
- strcpy(tp->ext_Names[i], stringbuf + offsets[i]);
- length += strlen(tp->ext_Names[i]) + 1;
+ if ((n = (unsigned) NUM_EXT_NAMES(tp)) != 0) {
+ if (n < SIZEOF(offsets)) {
+ size_t length = 0;
+ size_t offset;
+ for (i = 0; i < n; i++) {
+ length += strlen(tp->ext_Names[i]) + 1;
+ offsets[i] = (int) (tp->ext_Names[i] - stringbuf);
+ }
+ TYPE_MALLOC(char, length, tp->ext_str_table);
+ for (i = 0, offset = 0; i < n; i++) {
+ tp->ext_Names[i] = tp->ext_str_table + offset;
+ _nc_STRCPY(tp->ext_Names[i],
+ stringbuf + offsets[i],
+ length - offset);
+ offset += strlen(tp->ext_Names[i]) + 1;
+ }
}
}
}
#endif
- for (i = 0; i < ep->nuses; i++) {
- if (useoffsets[i] == ABSENT_OFFSET)
+ for (i = 0; i < nuses; i++) {
+ if (useoffsets[i] == ABSENT_OFFSET) {
ep->uses[i].name = 0;
- else
- ep->uses[i].name = (tp->str_table + useoffsets[i]);
+ } else {
+ ep->uses[i].name = strdup(tp->str_table + useoffsets[i]);
+ }
}
+ DEBUG(2, (T_RETURN("")));
}
NCURSES_EXPORT(void)
-_nc_merge_entry
-(TERMTYPE * const to, TERMTYPE * const from)
+_nc_merge_entry(ENTRY * const target, ENTRY * const source)
/* merge capabilities from `from' entry into `to' entry */
{
- int i;
+ TERMTYPE2 *to = &(target->tterm);
+ TERMTYPE2 *from = &(source->tterm);
+#if NCURSES_XNAMES
+ TERMTYPE2 copy;
+ size_t str_size, copy_size;
+ char *str_table;
+#endif
+ unsigned i;
+
+ if (source == 0 || from == 0 || target == 0 || to == 0)
+ return;
#if NCURSES_XNAMES
+ _nc_copy_termtype2(©, from);
+ from = ©
_nc_align_termtype(to, from);
+ /*
+ * compute the maximum size of the string-table.
+ */
+ str_size = strlen(to->term_names) + 1;
+ for_each_string(i, from) {
+ if (VALID_STRING(from->Strings[i]))
+ str_size += strlen(from->Strings[i]) + 1;
+ }
+ for_each_string(i, to) {
+ if (VALID_STRING(to->Strings[i]))
+ str_size += strlen(to->Strings[i]) + 1;
+ }
+ /* allocate a string-table large enough for both source/target, and
+ * copy all of the strings into that table. In the merge, we will
+ * select from the original source/target lists to construct a new
+ * target list.
+ */
+ if (str_size != 0) {
+ char *str_copied;
+ if ((str_table = malloc(str_size)) == NULL)
+ _nc_err_abort(MSG_NO_MEMORY);
+ str_copied = str_table;
+ _nc_STRCPY(str_copied, to->term_names, str_size);
+ to->term_names = str_copied;
+ copy_size = strlen(str_copied) + 1;
+ str_copied += copy_size;
+ str_size -= copy_size;
+ for_each_string(i, from) {
+ if (VALID_STRING(from->Strings[i])) {
+ _nc_STRCPY(str_copied, from->Strings[i], str_size);
+ from->Strings[i] = str_copied;
+ copy_size = strlen(str_copied) + 1;
+ str_copied += copy_size;
+ str_size -= copy_size;
+ }
+ }
+ for_each_string(i, to) {
+ if (VALID_STRING(to->Strings[i])) {
+ _nc_STRCPY(str_copied, to->Strings[i], str_size);
+ to->Strings[i] = str_copied;
+ copy_size = strlen(str_copied) + 1;
+ str_copied += copy_size;
+ str_size -= copy_size;
+ }
+ }
+ free(to->str_table);
+ to->str_table = str_table;
+ free(from->str_table);
+ }
+ /*
+ * Do the same for the extended-strings (i.e., lists of capabilities).
+ */
+ str_size = 0;
+ for (i = 0; i < NUM_EXT_NAMES(from); ++i) {
+ if (VALID_STRING(from->ext_Names[i]))
+ str_size += strlen(from->ext_Names[i]) + 1;
+ }
+ for (i = 0; i < NUM_EXT_NAMES(to); ++i) {
+ if (VALID_STRING(to->ext_Names[i]))
+ str_size += strlen(to->ext_Names[i]) + 1;
+ }
+ /* allocate a string-table large enough for both source/target, and
+ * copy all of the strings into that table. In the merge, we will
+ * select from the original source/target lists to construct a new
+ * target list.
+ */
+ if (str_size != 0) {
+ char *str_copied;
+ if ((str_table = malloc(str_size)) == NULL)
+ _nc_err_abort(MSG_NO_MEMORY);
+ str_copied = str_table;
+ for (i = 0; i < NUM_EXT_NAMES(from); ++i) {
+ if (VALID_STRING(from->ext_Names[i])) {
+ _nc_STRCPY(str_copied, from->ext_Names[i], str_size);
+ from->ext_Names[i] = str_copied;
+ copy_size = strlen(str_copied) + 1;
+ str_copied += copy_size;
+ str_size -= copy_size;
+ }
+ }
+ for (i = 0; i < NUM_EXT_NAMES(to); ++i) {
+ if (VALID_STRING(to->ext_Names[i])) {
+ _nc_STRCPY(str_copied, to->ext_Names[i], str_size);
+ to->ext_Names[i] = str_copied;
+ copy_size = strlen(str_copied) + 1;
+ str_copied += copy_size;
+ str_size -= copy_size;
+ }
+ }
+ free(to->ext_str_table);
+ to->ext_str_table = str_table;
+ free(from->ext_str_table);
+ }
#endif
for_each_boolean(i, from) {
- int mergebool = from->Booleans[i];
+ if (to->Booleans[i] != (NCURSES_SBOOL) CANCELLED_BOOLEAN) {
+ int mergebool = from->Booleans[i];
- if (mergebool == CANCELLED_BOOLEAN)
- to->Booleans[i] = FALSE;
- else if (mergebool == TRUE)
- to->Booleans[i] = mergebool;
+ if (mergebool == CANCELLED_BOOLEAN)
+ to->Booleans[i] = FALSE;
+ else if (mergebool == TRUE)
+ to->Booleans[i] = (NCURSES_SBOOL) mergebool;
+ }
}
for_each_number(i, from) {
- int mergenum = from->Numbers[i];
+ if (to->Numbers[i] != CANCELLED_NUMERIC) {
+ int mergenum = from->Numbers[i];
- if (mergenum == CANCELLED_NUMERIC)
- to->Numbers[i] = ABSENT_NUMERIC;
- else if (mergenum != ABSENT_NUMERIC)
- to->Numbers[i] = mergenum;
+ if (mergenum == CANCELLED_NUMERIC)
+ to->Numbers[i] = ABSENT_NUMERIC;
+ else if (mergenum != ABSENT_NUMERIC)
+ to->Numbers[i] = (NCURSES_INT2) mergenum;
+ }
}
/*
* we ever want to deallocate entries.
*/
for_each_string(i, from) {
- char *mergestring = from->Strings[i];
+ if (to->Strings[i] != CANCELLED_STRING) {
+ char *mergestring = from->Strings[i];
- if (mergestring == CANCELLED_STRING)
- to->Strings[i] = ABSENT_STRING;
- else if (mergestring != ABSENT_STRING)
- to->Strings[i] = mergestring;
+ if (mergestring == CANCELLED_STRING)
+ to->Strings[i] = ABSENT_STRING;
+ else if (mergestring != ABSENT_STRING)
+ to->Strings[i] = mergestring;
+ }
}
+#if NCURSES_XNAMES
+ /* cleanup */
+ free(copy.Booleans);
+ free(copy.Numbers);
+ free(copy.Strings);
+ free(copy.ext_Names);
+#endif
}
+
+#if NO_LEAKS
+NCURSES_EXPORT(void)
+_nc_alloc_entry_leaks(void)
+{
+ if (stringbuf != NULL) {
+ FreeAndNull(stringbuf);
+ }
+ next_free = 0;
+}
+#endif
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