/****************************************************************************
- * Copyright (c) 1998-2004,2005 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2005,2006 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 *
#include <term.h> /* lines, columns, cur_term */
-MODULE_ID("$Id: lib_setup.c,v 1.88 2005/03/12 19:41:45 tom Exp $")
+MODULE_ID("$Id: lib_setup.c,v 1.95 2006/07/28 22:58:13 tom Exp $")
/****************************************************************************
*
static int _use_env = TRUE;
+#if USE_SIGWINCH
+int
+_nc_handle_sigwinch(int enable)
+{
+ static int have_sigwinch = 0; /* initially no SIGWINCH's */
+ static int can_resizeall = 1; /* initially enabled */
+ SCREEN *scan;
+ int result;
+
+ switch (enable) {
+ default:
+ /* record a SIGWINCH */
+ have_sigwinch = 1;
+ break;
+ case 0:
+ /* temporarily disable the next block */
+ --can_resizeall;
+ break;
+ case 1:
+ /* temporarily enable the next block */
+ ++can_resizeall;
+ break;
+ }
+
+ /*
+ * If we have a pending SIGWINCH, set the flag in each screen.
+ * But do this only if the block is enabled.
+ */
+ if (can_resizeall-- >= 0) { /* test and disable */
+ if (have_sigwinch) {
+ scan = _nc_screen_chain;
+ while (scan) {
+ scan->_sig_winch = TRUE;
+ scan = scan->_next_screen;
+ }
+ have_sigwinch = 0;
+ }
+ }
+ result = can_resizeall + 1; /* reenable (unless disables are nested) */
+ can_resizeall = result;
+
+ return result;
+}
+
+#endif
+
NCURSES_EXPORT(void)
use_env(bool f)
{
/* figure out the size of the screen */
T(("screen size: terminfo lines = %d columns = %d", lines, columns));
+ _nc_handle_sigwinch(0);
if (!_use_env) {
*linep = (int) lines;
*colp = (int) columns;
* environment variable.
*/
if (*linep <= 0)
- *linep = WINSIZE_ROWS(size);
+ *linep = (SP != 0 && SP->_filtered) ? 1 : WINSIZE_ROWS(size);
if (*colp <= 0)
*colp = WINSIZE_COLS(size);
}
lines = (short) (*linep);
columns = (short) (*colp);
}
+ _nc_handle_sigwinch(1);
T(("screen size is %dx%d", *linep, *colp));
}
#if USE_DATABASE || USE_TERMCAP
+/*
+ * Return 1 if entry found, 0 if not found, -1 if database not accessible,
+ * just like tgetent().
+ */
static int
grab_entry(const char *const tn, TERMTYPE *const tp)
-/* return 1 if entry found, 0 if not found, -1 if database not accessible */
{
-#if USE_DATABASE
char filename[PATH_MAX];
-#endif
- int status;
-
- /*
- * $TERM shouldn't contain pathname delimiters.
- */
- if (strchr(tn, '/'))
- return 0;
-
-#if USE_DATABASE
- if ((status = _nc_read_entry(tn, filename, tp)) != 1) {
-
-#if !PURE_TERMINFO
- /*
- * Try falling back on the termcap file.
- * Note: allowing this call links the entire terminfo/termcap
- * compiler into the startup code. It's preferable to build a
- * real terminfo database and use that.
- */
- status = _nc_read_termcap_entry(tn, tp);
-#endif /* PURE_TERMINFO */
-
- }
-#else
- status = _nc_read_termcap_entry(tn, tp);
-#endif
+ int status = _nc_read_entry(tn, filename, tp);
/*
* If we have an entry, force all of the cancelled strings to null
* (The terminfo compiler bypasses this logic, since it must know if
* a string is cancelled, for merging entries).
*/
- if (status == 1) {
+ if (status == TGETENT_YES) {
unsigned n;
for_each_boolean(n, tp) {
if (!VALID_BOOLEAN(tp->Booleans[n]))
**
** Take the real command character out of the CC environment variable
** and substitute it in for the prototype given in 'command_character'.
-**
*/
static void
do_prototype(void)
}
/*
- * This entrypoint is called from tgetent() to allow special a case of reusing
+ * This entrypoint is called from tgetent() to allow a special case of reusing
* the same TERMINAL data (see comment).
*/
NCURSES_EXPORT(int)
if (tname == 0) {
tname = getenv("TERM");
if (tname == 0 || *tname == '\0') {
- ret_error0(-1, "TERM environment variable not set.\n");
+ ret_error0(TGETENT_ERR, "TERM environment variable not set.\n");
}
}
+
if (strlen(tname) > MAX_NAME_SIZE) {
- ret_error(-1, "TERM environment must be <= %d characters.\n",
+ ret_error(TGETENT_ERR,
+ "TERM environment must be <= %d characters.\n",
MAX_NAME_SIZE);
}
term_ptr = typeCalloc(TERMINAL, 1);
if (term_ptr == 0) {
- ret_error0(-1,
+ ret_error0(TGETENT_ERR,
"Not enough memory to create terminal structure.\n");
}
#if USE_DATABASE || USE_TERMCAP
status = grab_entry(tname, &term_ptr->type);
#else
- status = 0;
+ status = TGETENT_NO;
#endif
/* try fallback list if entry on disk */
- if (status != 1) {
+ if (status != TGETENT_YES) {
const TERMTYPE *fallback = _nc_fallback(tname);
if (fallback) {
term_ptr->type = *fallback;
- status = 1;
+ status = TGETENT_YES;
}
}
- if (status <= 0) {
+ if (status != TGETENT_YES) {
del_curterm(term_ptr);
- if (status == -1) {
- ret_error0(-1, "terminals database is inaccessible\n");
- } else if (status == 0) {
- ret_error(0, "'%s': unknown terminal type.\n", tname);
+ if (status == TGETENT_ERR) {
+ ret_error0(status, "terminals database is inaccessible\n");
+ } else if (status == TGETENT_NO) {
+ ret_error(status, "'%s': unknown terminal type.\n", tname);
}
}
_nc_get_screensize(&LINES, &COLS);
if (errret)
- *errret = 1;
+ *errret = TGETENT_YES;
T((T_CREATE("screen %s %dx%d"), tname, LINES, COLS));
if (generic_type) {
- ret_error(0, "'%s': I need something more specific.\n", tname);
+ ret_error(TGETENT_NO, "'%s': I need something more specific.\n", tname);
}
if (hard_copy) {
- ret_error(1, "'%s': I can't handle hardcopy terminals.\n", tname);
+ ret_error(TGETENT_YES, "'%s': I can't handle hardcopy terminals.\n", tname);
}
returnCode(OK);
}
*
* Find and read the appropriate object file for the terminal
* Make cur_term point to the structure.
- *
*/
-
NCURSES_EXPORT(int)
setupterm(NCURSES_CONST char *tname, int Filedes, int *errret)
{
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