/****************************************************************************
- * Copyright (c) 1998-2010,2011 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2012,2013 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 *
#define CUR SP_TERMTYPE
#endif
-MODULE_ID("$Id: lib_termcap.c,v 1.75 2011/09/26 22:44:30 tom Exp $")
+MODULE_ID("$Id: lib_termcap.c,v 1.79 2013/01/19 18:20:05 tom Exp $")
NCURSES_EXPORT_VAR(char *) UP = 0;
NCURSES_EXPORT_VAR(char *) BC = 0;
#define LAST_USE MyCache[CacheInx].last_used
#define LAST_SEQ MyCache[CacheInx].sequence
+/*
+ * Termcap names are matched only using the first two bytes.
+ * Ignore any extended names longer than two bytes, to avoid problems
+ * with legacy code which passes in parameters whose use is long forgotten.
+ */
+#define ValidCap(cap) (((cap)[0] != '\0') && ((cap)[1] != '\0'))
+#define SameCap(a,b) (((a)[0] == (b)[0]) && ((a)[1] == (b)[1]))
+#define ValidExt(ext) (ValidCap(ext) && (ext)[2] == '\0')
+
/***************************************************************************
*
* tgetent(bufp, term)
static bool
same_tcname(const char *a, const char *b)
{
- fprintf(stderr, "compare(%s,%s)\n", a, b);
- return !strncmp(a, b, 2);
+ bool code = SameCap(a, b);
+ fprintf(stderr, "compare(%s,%s) %s\n", a, b, code ? "same" : "diff");
+ return code;
}
+
#else
-#define same_tcname(a,b) !strncmp(a,b,2)
+#define same_tcname(a,b) SameCap(a,b)
#endif
/***************************************************************************
int i, j;
T((T_CALLED("tgetflag(%p, %s)"), (void *) SP_PARM, id));
- if (HasTInfoTerminal(SP_PARM)) {
+ if (HasTInfoTerminal(SP_PARM) && ValidCap(id)) {
TERMTYPE *tp = &(TerminalOf(SP_PARM)->type);
struct name_table_entry const *entry_ptr;
j = -1;
for_each_ext_boolean(i, tp) {
const char *capname = ExtBoolname(tp, i, boolcodes);
- if (same_tcname(id, capname)) {
+ if (same_tcname(id, capname) && ValidExt(capname)) {
j = i;
break;
}
int i, j;
T((T_CALLED("tgetnum(%p, %s)"), (void *) SP_PARM, id));
- if (HasTInfoTerminal(SP_PARM)) {
+ if (HasTInfoTerminal(SP_PARM) && ValidCap(id)) {
TERMTYPE *tp = &(TerminalOf(SP_PARM)->type);
struct name_table_entry const *entry_ptr;
j = -1;
for_each_ext_number(i, tp) {
const char *capname = ExtNumname(tp, i, numcodes);
- if (same_tcname(id, capname)) {
+ if (same_tcname(id, capname) && ValidExt(capname)) {
j = i;
break;
}
int i, j;
T((T_CALLED("tgetstr(%s,%p)"), id, (void *) area));
- if (HasTInfoTerminal(SP_PARM)) {
+ if (HasTInfoTerminal(SP_PARM) && ValidCap(id)) {
TERMTYPE *tp = &(TerminalOf(SP_PARM)->type);
struct name_table_entry const *entry_ptr;
j = -1;
for_each_ext_string(i, tp) {
const char *capname = ExtStrname(tp, i, strcodes);
- if (same_tcname(id, capname)) {
+ if (same_tcname(id, capname) && ValidExt(capname)) {
j = i;
break;
}
}
if (area != 0
&& *area != 0) {
- (void) strcpy(*area, result);
+ _nc_STRCPY(*area, result, 1024);
result = *area;
*area += strlen(*area) + 1;
}