int Plot_close (void) /*{{{*/
{
int status;
SLSig_Fun_Type *sig_func;
if (pli_undefined())
return -1;
if (PLI->close == NULL)
return -1;
sig_func = SLsignal (SIGSEGV, sig_segv);
if (SIG_ERR == sig_func)
fprintf (stderr, "warning: failed initializing signal handler for SIGSEGV\n");
if (-1 == SLexecute_function (PLI->close))
{
isis_vmesg (FAIL, I_FAILED, __FILE__, __LINE__, "failed closing plot device");
return -1;
}
if (-1 == SLang_pop_integer (&status))
{
isis_vmesg (FAIL, I_ERROR, __FILE__, __LINE__, "function closing plot device did not return status integer");
return -1;
}
if (SLsignal (SIGSEGV, sig_func) == SIG_ERR)
fprintf (stderr, "warning: failed to re-set signal handler\n");
return status;
}
void jed_reset_signals (void)
{
SLsignal (SIGINT, Old_Sigint_Handler);
#ifdef SIGTSTP
SLsignal (SIGTSTP, Old_Sigtstp_Handler);
#endif
/* return 0; */
}
static void _pgclos (void)
{
void (*sig_func)(int);
sig_func = SLsignal (SIGSEGV, sig_segv);
if (sig_func == SIG_ERR)
fprintf (stderr, "warning: failed initializing signal handler for SIGSEGV\n");
cpgclos ();
if (SLsignal (SIGSEGV, sig_func) == SIG_ERR)
fprintf (stderr, "warning: failed to re-set signal handler\n");
}
void init_signals (void) /*{{{*/
{
#if !defined(VMS) || (__VMS_VER >= 70000000)
#ifdef SIGWINCH
(void) SLsignal_intr(SIGWINCH, sigwinch_handler);
#endif
Old_Sigint_Handler = SLsignal_intr (SIGINT, my_interrupt);
SLsignal (SIGHUP, sig_hup_exit_jed);
SLsignal (SIGQUIT, sig_hup_exit_jed);
SLsignal (SIGTERM, sig_hup_exit_jed);
SLsignal (SIGILL, sig_exit_jed);
#if 0 && defined(SIGTRAP)
SLsignal (SIGTRAP, sig_exit_jed);
#endif
#if 0
SLsignal (SIGIOT, sig_exit_jed); /* used by abort */
#endif
#ifdef SIGPIPE
SLsignal_intr (SIGPIPE, SIG_IGN);
#endif
/* SIGNAL (SIGFPE, sig_exit_jed); */
#ifdef SIGBUS
SLsignal (SIGBUS, sig_exit_jed);
#endif
#if 0
SLsignal (SIGSEGV, sig_exit_jed);
#endif
#ifdef SIGSYS
SLsignal (SIGSYS, sig_exit_jed);
#endif
#ifdef SIGTSTP
if (Jed_Handle_SIGTSTP)
{
Old_Sigtstp_Handler = SLsignal_intr (SIGTSTP, sig_sys_spawn_cmd);
if (SIG_DFL != Old_Sigtstp_Handler)
Jed_Suspension_Not_Allowed = 1;
}
#endif
#if CATCH_SIGTTIN
# ifdef SIGTTOU
SLsignal_intr (SIGTTOU, background_read);
# endif
# ifdef SIGTTIN
SLsignal_intr (SIGTTIN, background_read);
# endif
#endif
#endif /* VMS */
}
/* pipes a single email body to some file.
In interactive mode, we catch the PIPE signal
in case the receiving command closed the connection
prematurely. In that case, we simply stop sending. */
void pipe_single_email(mbox_item *what, FILE *output) {
FILE *input;
char buf[PIPE_BUFLEN];
if( emails.filename ) {
input = fopen(emails.filename, "rb");
if( input ) {
#if defined COMPILE_INTERACTIVE_MODE
if( u_options & (1<<U_OPTION_INTERACTIVE) ) {
SLsignal(SIGPIPE, sigpipe_handler);
}
#endif
fseek(input, what->seekpos, SEEK_SET);
pipe_done = 0;
fputs(what->description[0], output);
while( !pipe_done ) {
fgets(buf, PIPE_BUFLEN, input);
if( feof(input) || (strncmp(buf, "From ", 5) == 0) ) {
pipe_done = 1;
} else {
fputs(buf, output);
}
}
}
fclose(input);
}
}
static void
sigwinch_handler (int dummy)
{
(void) dummy;
mc_global.tty.winch_flag = 1;
(void) SLsignal (SIGWINCH, sigwinch_handler);
}
static void sig_sigtstp (int sig)
{
sig = errno;
# if USE_SIGTSTP_INTERRUPT
Want_Suspension = 1;
# else
suspend_slsh ();
# endif
(void) SLsignal (sig, sig_sigtstp);
errno = sig;
}
static void sig_segv (int signo) /*{{{*/
{
static char msg[] =
"\n**** Segmentation Fault occurred while closing plot device\n";
(void) signo;
if (Signal_In_Progress)
return;
Signal_In_Progress = 1;
write (STDERR_FILENO, msg, sizeof(msg));
/* so more SEGVs won't interfere with _exit() */
SLsignal (SIGSEGV, SIG_DFL);
_exit (EXIT_FAILURE);
}
static void sig_segv (int signo)
{
static char msg[] =
"\n**** PGPLOT is buggy: Segmentation Fault occurred while in PGCLOSE\n";
(void) signo;
if (Signal_In_Progress)
return;
Signal_In_Progress = 1;
write (STDERR_FILENO, msg, sizeof(msg));
/* so more SEGVs won't interfere with exit() */
SLsignal (SIGSEGV, SIG_DFL);
SLang_exit_error ("Fatal error in PGPLOT--- exiting");
}
static void init_tty (void) /*{{{*/
{
#ifdef HAVE_GNU_READLINE
if (Use_SLang_Readline == 0)
{
SLsig_block_signals ();
last_sig_sigint = SLsignal (SIGINT, gnu_rl_sigint_handler);
last_sig_sigtstp = SLsignal (SIGTSTP, sig_sigtstp);
SLsig_unblock_signals ();
return;
}
#endif
if (TTY_Inited)
return;
TTY_Inited++;
SLsig_block_signals ();
SLang_TT_Read_FD = fileno (stdin);
last_sig_sigtstp = SLsignal (SIGTSTP, sig_sigtstp);
if (-1 == SLang_init_tty (-1, 1, 0))
{
SLsignal (SIGTSTP, last_sig_sigtstp);
SLsig_unblock_signals ();
fprintf (stderr, "Error initializing terminal.");
exit (EXIT_FAILURE);
}
SLang_getkey_intr_hook = getkey_intr_hook;
(void) add_sigwinch_handlers ();
SLtt_get_screen_size ();
SLtty_set_suspend_state (1);
SLsig_unblock_signals ();
}
static void reset_tty (void) /*{{{*/
{
#ifdef HAVE_GNU_READLINE
if (Use_SLang_Readline == 0)
{
SLsig_block_signals ();
SLsignal (SIGINT, last_sig_sigint);
SLsignal (SIGTSTP, last_sig_sigtstp);
SLsig_unblock_signals ();
return;
}
#endif
if (TTY_Inited == 0)
return;
TTY_Inited = 0;
SLsig_block_signals ();
SLsignal (SIGTSTP, last_sig_sigtstp);
SLang_reset_tty ();
SLsig_unblock_signals ();
fputs ("\r\n", stdout); /* need this with buggy Linux rlogin? */
fflush (stdout);
}
static void init_tty (void)
{
int abort_char = 3;
if (TTY_Inited)
return;
TTY_Inited++;
# if SYSTEM_SUPPORTS_SIGNALS
SLsig_block_signals ();
SLang_TT_Read_FD = fileno (stdin);
last_sig_sigtstp = SLsignal (SIGTSTP, sig_sigtstp);
# endif
# ifdef REAL_UNIX_SYSTEM
abort_char = -1; /* determine from tty */
# endif
if (-1 == SLang_init_tty (abort_char, 1, 1)) /* opost was 0 */
{
# if SYSTEM_SUPPORTS_SIGNALS
SLsignal (SIGTSTP, last_sig_sigtstp);
SLsig_unblock_signals ();
# endif
SLang_exit_error ("Error initializing terminal.");
}
# ifdef REAL_UNIX_SYSTEM
SLang_getkey_intr_hook = getkey_intr_hook;
# endif
(void) add_sigwinch_handlers ();
SLtt_get_screen_size ();
# if SYSTEM_SUPPORTS_SIGNALS
SLtty_set_suspend_state (1);
SLsig_unblock_signals ();
# endif
}
static void sigwinch_handler (int sig) {
SLsig_block_signals();
SLtt_get_screen_size();
SLsmg_reinit_smg();
if( !disp.delay_sigwinch ) {
redraw_current_state();
}
SLsig_unblock_signals();
SLsignal(SIGWINCH, sigwinch_handler);
}
static void reset_tty (void)
{
if (TTY_Inited == 0)
return;
TTY_Inited = 0;
# if SYSTEM_SUPPORTS_SIGNALS
SLsig_block_signals ();
SLsignal (SIGTSTP, last_sig_sigtstp);
# endif
SLang_reset_tty ();
# if SYSTEM_SUPPORTS_SIGNALS
SLsig_unblock_signals ();
# endif
/* Add a \r here to work around what I believe is a solaris kernel bug.
* The terminal is being reset by SLang_reset_tty which uses TCSADRAIN
* option. However, that is not supposed to affect output after that
* call is made (like the output below), but it does.
*/
fputs ("\r\n", stdout);
fflush (stdout);
}
int SLang_init_slmath (void)
{
SLtype *int_types;
#if SLANG_HAS_COMPLEX
if (-1 == _pSLinit_slcomplex ())
return -1;
#endif
int_types = _pSLarith_Arith_Types;
while (*int_types != SLANG_FLOAT_TYPE)
{
if (-1 == SLclass_add_math_op (*int_types, generic_math_op, double_math_op_result))
return -1;
int_types++;
}
if ((-1 == SLclass_add_math_op (SLANG_FLOAT_TYPE, float_math_op, double_math_op_result))
|| (-1 == SLclass_add_math_op (SLANG_DOUBLE_TYPE, double_math_op, double_math_op_result))
#if SLANG_HAS_COMPLEX
|| (-1 == SLclass_add_math_op (SLANG_COMPLEX_TYPE, complex_math_op, complex_math_op_result))
#endif
)
return -1;
if ((-1 == SLadd_math_unary_table (SLmath_Table, "__SLMATH__"))
|| (-1 == SLadd_intrin_fun_table (SLang_Math_Table, NULL))
|| (-1 == SLadd_dconstant_table (DConst_Table, NULL))
|| (-1 == SLadd_iconstant_table (IConsts, NULL))
|| (-1 == add_nan_and_inf ()))
return -1;
#if defined(__unix__)
(void) SLsignal (SIGFPE, math_floating_point_exception);
#endif
return 0;
}
static void init_sigtstp (void)
{
(void) SLang_add_interrupt_hook (sigtstp_interrupt_hook, NULL);
last_sig_sigtstp = SLsignal (SIGTSTP, sig_sigtstp);
}
static int sl_output(int port, char *buf, int len)
{
int x,y,z,v,w;
char *str, *t1, *t2, *t3;
int ret;
char ch;
/* check for signals */
if (signal_cought != 0) { /* async out signal */
char xxx[5];
xxx[0] = 0;
put_int32(signal_cought, xxx+1);
driver_output(port, xxx, 5);
signal_cought = 0;
}
switch (*buf++) {
case INIT_TTY: {
int abort_char, flow_ctl, opost;
abort_char = get_int32(buf); buf+=4;
flow_ctl = get_int32(buf); buf+= 4;
opost = get_int32(buf); buf+= 4;
ret = SLang_init_tty (abort_char,flow_ctl, opost);
return ret_int(port, ret);
}
case SET_ABORT_FUNCTION: {
SLang_set_abort_signal (NULL);
return ret_int(port, 0);
}
case GETKEY: {
unsigned int key;
if (SLang_input_pending (0) == 0) {
wait_for = GETKEY;
driver_select(port, 0, DO_READ, 1);
return 0;
}
x = SLang_getkey ();
return ret_int(port, x);
}
/* read a symbol */
case KP_GETKEY: {
if (SLang_input_pending (0) == 0) {
wait_for = KP_GETKEY;
driver_select(port, 0, DO_READ, 1);
return 0;
}
x = SLkp_getkey ();
return ret_int(port, x);
}
case UNGETKEY: {
unsigned char key = (unsigned char) *buf;
SLang_ungetkey (key);
return 0;
}
case RESET_TTY: {
SLang_reset_tty();
return 0;
}
case KP_INIT: {
return ret_int(port, SLkp_init ());
}
case SETVAR: {
x = get_int32(buf);buf+= 4;
y = get_int32(buf);
switch (x) {
case esl_baud_rate:
SLang_TT_Baud_Rate = y; return 0;
case esl_read_fd:
return 0;
case esl_abort_char:
SLang_Abort_Char = y; return 0;
case esl_ignore_user_abort:
SLang_Ignore_User_Abort=y; return 0;
case esl_input_buffer_len :
SLang_Input_Buffer_Len=y; return 0;
case esl_keyboard_quit:
SLKeyBoard_Quit=y; return 0;
case esl_last_key_char:
SLang_Last_Key_Char=y; return 0;
case esl_rl_eof_char:
SLang_RL_EOF_Char=y; return 0;
case esl_rline_quit:
SLang_Rline_Quit=y; return 0;
case esl_screen_rows:
case esl_screen_cols :
return 0;
case esl_tab_width:
SLsmg_Tab_Width=y; return 0;
case esl_newline_behaviour:
SLsmg_Newline_Behavior=y; return 0;
case esl_error:
SLang_Error=y; return 0;
case esl_version:
return 0;
case esl_backspace_moves :
SLsmg_Backspace_Moves=y; return 0;
case esl_display_eight_bit:
SLsmg_Display_Eight_Bit=y; return 0;
default:
return 0;
}
}
case GETVAR: {
x = get_int32(buf);
switch (x) {
case esl_baud_rate:
return ret_int(port, SLang_TT_Baud_Rate);
case esl_read_fd:
return ret_int(port, SLang_TT_Read_FD);
case esl_abort_char:
return (ret_int(port, SLang_Abort_Char));
case esl_ignore_user_abort:
return ret_int(port, SLang_Ignore_User_Abort);
case esl_input_buffer_len :
return ret_int(port, SLang_Input_Buffer_Len);
case esl_keyboard_quit:
return ret_int(port, SLKeyBoard_Quit);
case esl_last_key_char:
return ret_int(port, SLang_Last_Key_Char);
case esl_rl_eof_char:
return ret_int(port, SLang_RL_EOF_Char);
case esl_rline_quit:
return ret_int(port, SLang_Rline_Quit);
case esl_screen_rows:
return ret_int(port, SLtt_Screen_Rows);
case esl_screen_cols :
return ret_int(port, SLtt_Screen_Cols);
case esl_tab_width:
return ret_int(port, SLsmg_Tab_Width);
case esl_newline_behaviour:
return ret_int(port, SLsmg_Newline_Behavior);
case esl_error:
return ret_int(port, SLang_Error);
case esl_version:
return ret_int(port, SLang_Version);
case esl_backspace_moves :
return ret_int(port, SLsmg_Backspace_Moves);
case esl_display_eight_bit:
return ret_int(port, SLsmg_Display_Eight_Bit);
default:
return ret_int(port, -1);
}
}
/*{{{ SLsmg Screen Management Functions */
case SMG_FILL_REGION: {
x = get_int32(buf); buf+= 4;
y = get_int32(buf); buf+= 4;
z = get_int32(buf); buf+= 4;
v = get_int32(buf); buf+= 4;
ch = *buf;
SLsmg_fill_region(x, y,z,v,ch);
return 0;
}
case SMG_SET_CHAR_SET: {
x = get_int32(buf); buf+= 4;
SLsmg_set_char_set(x);
return 0;
}
case SMG_SUSPEND_SMG: {
return ret_int(port, SLsmg_suspend_smg());
}
case SMG_RESUME_SMG: {
ret_int(port, SLsmg_resume_smg());
}
case SMG_ERASE_EOL: {
SLsmg_erase_eol();
return 0;
}
case SMG_GOTORC: {
x = get_int32(buf); buf+= 4;
y = get_int32(buf); buf+= 4;
SLsmg_gotorc(x, y);
return 0;
}
case SMG_ERASE_EOS: {
SLsmg_erase_eos();
return 0;
}
case SMG_REVERSE_VIDEO: {
SLsmg_reverse_video();
return 0;
}
case SMG_SET_COLOR: {
x = get_int32(buf); buf+= 4;
SLsmg_set_color(x);
return 0;
}
case SMG_NORMAL_VIDEO: {
SLsmg_normal_video();
return 0;
}
case SMG_WRITE_STRING: {
SLsmg_write_string(buf);
return 0;
}
case SMG_WRITE_CHAR: {
ch = *buf;
SLsmg_write_char(ch);
return 0;
}
case SMG_WRITE_WRAPPED_STRING: {
t1 = buf;
buf += strlen(t1) + 1;
x = get_int32(buf); buf+= 4;
y = get_int32(buf); buf+= 4;
z = get_int32(buf); buf+= 4;
v = get_int32(buf); buf+= 4;
w = get_int32(buf); buf+= 4;
SLsmg_write_wrapped_string(t1, x,y,z,v,w);
return 0;
}
case SMG_CLS: {
SLsmg_cls();
return 0;
}
case SMG_REFRESH: {
SLsmg_refresh();
return 0;
}
case SMG_TOUCH_LINES: {
x = get_int32(buf); buf+= 4;
y = get_int32(buf); buf+= 4;
SLsmg_touch_lines(x, y);
return 0;
}
case SMG_TOUCH_SCREEN: {
#if (SLANG_VERSION < 10400 )
return ret_int(port, -1);
#else
SLsmg_touch_screen();
#endif
return 0;
}
case SMG_INIT_SMG: {
return ret_int(port, SLsmg_init_smg());
}
case SMG_REINIT_SMG: {
#if (SLANG_VERSION < 10400 )
return ret_int(port, -1);
#else
return ret_int(port, SLsmg_reinit_smg());
#endif
}
case SMG_RESET_SMG: {
SLsmg_reset_smg();
return 0;
}
case SMG_CHAR_AT: {
return ret_int(port, SLsmg_char_at());
}
case SMG_SET_SCREEN_START: {
int *ip1, *ip2;
*ip1 = get_int32(buf); buf+= 4;
*ip2 = get_int32(buf); buf+= 4;
SLsmg_set_screen_start(ip1, ip2);
return ret_int_int(port, *ip1, *ip2);
}
case SMG_DRAW_HLINE: {
x = get_int32(buf); buf+= 4;
SLsmg_draw_hline(x);
return 0;
}
case SMG_DRAW_VLINE: {
x = get_int32(buf); buf+= 4;
SLsmg_draw_vline(x);
return 0;
}
case SMG_DRAW_OBJECT: {
x = get_int32(buf); buf+= 4;
y = get_int32(buf); buf+= 4;
x = get_int32(buf); buf+= 4;
SLsmg_draw_object(x, y,z);
return 0;
}
case SMG_DRAW_BOX: {
x = get_int32(buf); buf+= 4;
y = get_int32(buf); buf+= 4;
z = get_int32(buf); buf+= 4;
v = get_int32(buf); buf+= 4;
SLsmg_draw_box(x, y,z,v);
return 0;
}
case SMG_GET_COLUMN: {
return ret_int(port, SLsmg_get_column());
}
case SMG_GET_ROW: {
return ret_int(port, SLsmg_get_row());
}
case SMG_FORWARD: {
x = get_int32(buf); buf+= 4;
SLsmg_forward(x);
return 0;
}
case SMG_WRITE_COLOR_CHARS: {
SLsmg_Char_Type * sl;
sl = decode_smg_char_type(&buf);
x = get_int32(buf); buf+= 4;
SLsmg_write_color_chars(sl, x);
return 0;
}
case SMG_READ_RAW: {
x = get_int32(buf); buf+= 4;
t1 = malloc((2*x) + 2 + 1);
y = SLsmg_read_raw((unsigned short*)t1 +1, x);
t1[1] = 1;
driver_output(port, t1, y+1);
free(t1);
return 0;
}
case SMG_WRITE_RAW: {
SLsmg_Char_Type * sl;
sl = decode_smg_char_type(&buf);
x = get_int32(buf);
y = SLsmg_write_raw(sl, x);
return ret_int(port, y);
}
case SMG_SET_COLOR_IN_REGION: {
x = get_int32(buf); buf+= 4;
y = get_int32(buf); buf+= 4;
z = get_int32(buf); buf+= 4;
v = get_int32(buf); buf+= 4;
w = get_int32(buf); buf+= 4;
SLsmg_set_color_in_region(x, y,z,v,w);
return 0;
}
/* all the tt_functions */
case TT_FLUSH_OUTPUT: {
ret = SLtt_flush_output();
return ret_int(port, ret);
}
case TT_SET_SCROLL_REGION: {
x = get_int32(buf); buf+=4;
y = get_int32(buf); buf+=4;
SLtt_set_scroll_region(x, y);
return 0;
}
case TT_RESET_SCROLL_REGION: {
SLtt_reset_scroll_region();
return 0;
}
case TT_REVERSE_VIDEO: {
SLtt_reverse_video (get_int32(buf));
return 0;
}
case TT_BOLD_VIDEO: {
SLtt_begin_insert();
return 0;
}
case TT_BEGIN_INSERT: {
SLtt_begin_insert();
return 0;
}
case TT_END_INSERT: {
SLtt_end_insert();
return 0;
}
case TT_DEL_EOL: {
SLtt_del_eol();
return 0;
}
case TT_GOTO_RC: {
x = get_int32(buf); buf+=4;
y = get_int32(buf); buf+=4;
SLtt_goto_rc (x, y);
return 0;
}
case TT_DELETE_NLINES: {
SLtt_delete_nlines(get_int32(buf));
return 0;
}
case TT_DELETE_CHAR: {
SLtt_delete_char();
return 0;
}
case TT_ERASE_LINE: {
SLtt_erase_line();
return 0;
}
case TT_NORMAL_VIDEO: {
SLtt_normal_video();
return 0;
}
case TT_CLS: {
SLtt_cls();
return 0;
}
case TT_BEEP: {
SLtt_beep();
return 0;
}
case TT_REVERSE_INDEX: {
SLtt_reverse_index(get_int32(buf));
return 0;
}
case TT_SMART_PUTS: {
SLsmg_Char_Type *t1 ;
SLsmg_Char_Type *t2;
t1 = decode_smg_char_type(&buf);
t2 = decode_smg_char_type(&buf);
x = get_int32(buf); buf+=4;
y = get_int32(buf); buf+=4;
SLtt_smart_puts(t1, t2,x,y);
return 0;
}
case TT_WRITE_STRING: {
SLtt_write_string (buf);
return 0;
}
case TT_PUTCHAR: {
SLtt_putchar((char) get_int32(buf));
return 0;
}
case TT_INIT_VIDEO: {
ret = SLtt_init_video ();
return ret_int(port, ret);
}
case TT_RESET_VIDEO: {
SLtt_reset_video ();
return 0;
}
case TT_GET_TERMINFO: {
SLtt_get_terminfo();
return 0;
}
case TT_GET_SCREEN_SIZE: {
SLtt_get_screen_size ();
return 0;
}
case TT_SET_CURSOR_VISIBILITY: {
ret = SLtt_set_cursor_visibility (get_int32(buf));
return ret_int(port, ret);
}
case TT_SET_MOUSE_MODE: {
x = get_int32(buf); buf+=4;
y = get_int32(buf); buf+=4;
ret = SLtt_set_mouse_mode (x,y);
return ret_int(port, ret);
}
case TT_INITIALIZE: {
ret =SLtt_initialize (buf);
return ret_int(port, ret);
}
case TT_ENABLE_CURSOR_KEYS: {
SLtt_enable_cursor_keys();
return 0;
}
case TT_SET_TERM_VTXXX: {
return 0;
}
case TT_SET_COLOR_ESC: {
x = get_int32(buf); buf+=4;
SLtt_set_color_esc (x, buf);
return 0;
}
case TT_WIDE_WIDTH: {
SLtt_narrow_width();
return 0;
}
case TT_NARROW_WIDTH: {
SLtt_narrow_width();
return 0;
}
case TT_SET_ALT_CHAR_SET: {
SLtt_set_alt_char_set (get_int32(buf));
return 0;
}
case TT_WRITE_TO_STATUS_LINE: {
x = get_int32(buf); buf+=4;
SLtt_write_to_status_line (buf, x);
return 0;
}
case TT_DISABLE_STATUS_LINE: {
SLtt_disable_status_line ();
return 0;
}
case TT_TGETSTR: {
str = SLtt_tgetstr (buf);
return ret_string(port, str);
}
case TT_TGETNUM: {
x = SLtt_tgetnum (buf);
return ret_int(port, x);
}
case TT_TGETFLAG: {
x = SLtt_tgetflag (buf);
return ret_int(port, x);
}
case TT_TIGETENT: {
str = SLtt_tigetent (buf);
return ret_string(port, str);
}
case TT_TIGETSTR: {
return 0;
}
case TT_TIGETNUM: {
return 0;
}
case SLTT_GET_COLOR_OBJECT: {
x = get_int32(buf); buf+=4;
y = SLtt_get_color_object (x);
return ret_int(port, y);
return 0;
}
case TT_SET_COLOR_OBJECT: {
x = get_int32(buf); buf+=4;
y = get_int32(buf); buf+=4;
SLtt_set_color_object (x, y);
return 0;
}
case TT_SET_COLOR: {
x = get_int32(buf); buf+=4;
t1 = buf;
t2 = buf + (strlen(t1) + 1);
t3 = buf + (strlen(t1) + strlen(t2) + 2);
SLtt_set_color (x, t1, t2, t3);
return 0;
}
case TT_SET_MONO: {
x = get_int32(buf); buf+=4;
t1 = buf;
buf += strlen(t1) + 1;
y = get_int32(buf);
SLtt_set_mono (x, t1, y);
return 0;
}
case TT_ADD_COLOR_ATTRIBUTE: {
x = get_int32(buf); buf+=4;
y = get_int32(buf); buf+=4;
SLtt_add_color_attribute (x, y);
return 0;
}
case TT_SET_COLOR_FGBG: {
x = get_int32(buf); buf+=4;
y = get_int32(buf); buf+=4;
z = get_int32(buf); buf+=4;
SLtt_set_color_fgbg (x, y, z);
return 0;
}
case ISATTY: {
x = get_int32(buf); buf+=4;
return ret_int(port, isatty(x));
}
case EFORMAT: {
fprintf(stderr, "%s", buf);
fflush(stderr);
return 0;
}
case SIGNAL: {
x = get_int32(buf); buf+=4;
SLsignal(x_to_sig(x), sig_handler);
return 0;
}
case SIGNAL_CHECK: {
/* polled */
if (signal_cought != 0)
signal_cought = 0;
return ret_int(port, signal_cought);
}
default:
return 0;
}
}
bool SLangConsole::init() {
setenv("TERM","xterm-color",0);
SLtt_get_terminfo();
if( -1 == SLkp_init() ) { // keyboard interface
error("failure in SLkp_init()");
return false;
}
SLang_init_tty(-1, 0, 0);
SLsmg_init_smg(); // screen manager
// SLutf8_enable(1); // enable UTF8 character set
// this is a mess ...
screen_size_changed = false;
// register signals
SLsignal (SIGWINCH, sigwinch_handler);
SLang_set_abort_signal(sigint_handler);
SLkp_set_getkey_function(getkey_handler);
// SLsmg_Tab_Width = 8;
// SLsmg_Display_Eight_Bit = 1;
// SLtt_Use_Ansi_Colors = 0;
// SLtt_Term_Cannot_Scroll = 0;
// set sizes of the whole console
w = SLtt_Screen_Cols;
h = SLtt_Screen_Rows;
/* setup colors with the palette scheme:
n = normal;
n+10 = highlight;
n+20 = reverse normal;
n+30 = reverse highlight; */
// crazy casting for crazy slang
SLtt_set_color(1,NULL,(char *)"lightgray",(char *)"black");
SLtt_set_color(11,NULL,(char *)"white",(char *)"black");
SLtt_set_color(21,NULL,(char *)"black",(char *)"lightgray");
SLtt_set_color(31,NULL,(char *)"black",(char *)"white");
SLtt_set_color(2,NULL,(char *)"red",(char *)"black");
SLtt_set_color(12,NULL,(char *)"brightred",(char *)"black");
SLtt_set_color(22,NULL,(char *)"black",(char *)"red");
SLtt_set_color(32,NULL,(char *)"black",(char *)"brightred");
SLtt_set_color(3,NULL,(char *)"green",(char *)"black");
SLtt_set_color(13,NULL,(char *)"brightgreen",(char *)"black");
SLtt_set_color(23,NULL,(char *)"black",(char *)"green");
SLtt_set_color(33,NULL,(char *)"black",(char *)"brightgreen");
SLtt_set_color(4,NULL,(char *)"brown",(char *)"black");
SLtt_set_color(14,NULL,(char *)"yellow",(char *)"black");
SLtt_set_color(24,NULL,(char *)"black",(char *)"brown");
SLtt_set_color(34,NULL,(char *)"black",(char *)"yellow");
SLtt_set_color(5,NULL,(char *)"blue",(char *)"black");
SLtt_set_color(15,NULL,(char *)"brightblue",(char *)"black");
SLtt_set_color(25,NULL,(char *)"black",(char *)"blue");
SLtt_set_color(35,NULL,(char *)"black",(char *)"brightblue");
SLtt_set_color(6,NULL,(char *)"magenta",(char *)"black");
SLtt_set_color(16,NULL,(char *)"brightmagenta",(char *)"black");
SLtt_set_color(26,NULL,(char *)"black",(char *)"magenta");
SLtt_set_color(36,NULL,(char *)"black",(char *)"brightmagenta");
SLtt_set_color(7,NULL,(char *)"cyan",(char *)"black");
SLtt_set_color(17,NULL,(char *)"brightcyan",(char *)"black");
SLtt_set_color(27,NULL,(char *)"black",(char *)"cyan");
SLtt_set_color(37,NULL,(char *)"black",(char *)"brightcyan");
refresh();
return true;
}
static void sigwinch_handler (int sig) {
screen_size_changed = true;
SLsignal (SIGWINCH, sigwinch_handler);
}
/* this is the main key processing loop for interactive mode */
void display_results_interactively() {
bool_t done = 0;
int c, c1;
/* set up the terminal etc. */
SLang_init_tty(-1, 0, 0);
SLtt_get_terminfo();
if(-1 == SLsmg_init_smg() ) {
fprintf (stderr, "Unable to initialize terminal.");
return;
}
SLkp_init(); /* for cursor keys */
SLsignal(SIGWINCH, sigwinch_handler);
init_disp_state();
while(!done) {
redraw_current_state();
c = SLang_getkey();
/* if it's a meta combination, translate */
if( c == '' ) {
c1 = SLang_getkey();
switch(c1) {
case '<':
c = SL_KEY_HOME;
break;
case '>':
c = SL_KEY_END;
break;
case 'v':
case 'V':
c = SL_KEY_PPAGE;
break;
case 'r':
case 'R':
c = '?';
break;
case 's':
case 'S':
c = '/';
break;
default:
/* could be special cursor keys */
SLang_ungetkey(c1);
SLang_ungetkey(c);
c = SLkp_getkey();
}
}
/* handle key press */
switch(c) {
case 'q':
case 'Q':
done = 1;
break;
case 'c':
interactive_categorize();
disp.highlighted = disp.first_visible = 0;
break;
case '\r':
case 'v':
if( emails.num_limited > 0 ) {
view_current_email();
}
break;
case SL_KEY_F(1):
if( emails.num_limited > 0 && disp.fkey_cmd[0] ) {
interactive_pipe_all_tagged(disp.fkey_cmd[0]);
}
break;
case SL_KEY_F(2):
if( emails.num_limited > 0 && disp.fkey_cmd[1] ) {
interactive_pipe_all_tagged(disp.fkey_cmd[1]);
}
break;
case SL_KEY_F(3):
if( emails.num_limited > 0 && disp.fkey_cmd[2] ) {
interactive_pipe_all_tagged(disp.fkey_cmd[2]);
}
break;
case SL_KEY_F(4):
if( emails.num_limited > 0 && disp.fkey_cmd[3] ) {
interactive_pipe_all_tagged(disp.fkey_cmd[3]);
}
break;
case SL_KEY_F(5):
if( emails.num_limited > 0 && disp.fkey_cmd[4] ) {
interactive_pipe_all_tagged(disp.fkey_cmd[4]);
}
break;
case SL_KEY_F(6):
if( emails.num_limited > 0 && disp.fkey_cmd[5] ) {
interactive_pipe_all_tagged(disp.fkey_cmd[5]);
}
break;
case SL_KEY_F(7):
if( emails.num_limited > 0 && disp.fkey_cmd[6] ) {
interactive_pipe_all_tagged(disp.fkey_cmd[6]);
}
break;
case SL_KEY_F(8):
if( emails.num_limited > 0 && disp.fkey_cmd[7] ) {
interactive_pipe_all_tagged(disp.fkey_cmd[7]);
}
break;
case SL_KEY_F(9):
if( emails.num_limited > 0 && disp.fkey_cmd[8] ) {
interactive_pipe_all_tagged(disp.fkey_cmd[8]);
}
break;
case SL_KEY_F(10):
if( emails.num_limited > 0 && disp.fkey_cmd[9] ) {
interactive_pipe_all_tagged(disp.fkey_cmd[9]);
}
break;
case 's':
if( emails.num_limited > 0 ) {
interactive_pipe_current("");
}
break;
case 'S':
if( emails.num_limited > 0 ) {
interactive_pipe_all_tagged("");
}
break;
case 'o':
if( ++emails.score_type >= MAX_SCORES ) {
emails.score_type = 0;
}
qsort(emails.list, emails.num_emails, sizeof(mbox_item), compare_scores);
recalculate_limited();
break;
case 'p':
if( ++emails.index_format >= MAX_FORMATS ) {
emails.index_format = 0;
}
break;
case 't':
if( emails.num_limited > 0 ) {
tag_current(1);
}
break;
case 'T':
if( emails.num_limited > 0 ) {
tag_all_limited(1);
}
break;
case 'u':
if( emails.num_limited > 0 ) {
tag_current(0);
}
break;
case 'U':
if( emails.num_limited > 0 ) {
tag_all_limited(0);
}
break;
case 'z':
reverse_sort();
recalculate_limited();
break;
case 'G':
case SL_KEY_END:
if( emails.num_limited > 0 ) {
disp.first_visible = emails.num_limited - 1;
} else {
disp.highlighted = disp.first_visible = 0;
}
break;
case '1':
case SL_KEY_HOME:
disp.first_visible = 0;
break;
case '':
case SL_KEY_PPAGE:
if( disp.first_visible > disp.num_rows )
{ disp.first_visible -= disp.num_rows; }
else
{ disp.first_visible = 0; disp.highlighted = 0; }
/* assert emails.num_limited >= disp.first_visible */
if( disp.highlighted > (emails.num_limited - disp.first_visible) ) {
disp.highlighted = (emails.num_limited - disp.first_visible);
}
break;
case 'k':
case '':
case SL_KEY_UP:
if( disp.highlighted > 0 ) {
disp.highlighted--;
} else {
if( disp.first_visible > 1 )
{ disp.first_visible -= 1; }
else
{ disp.first_visible = 0; }
}
break;
case 'j':
case '':
case SL_KEY_DOWN:
if( emails.num_limited > 0 ) {
if( disp.highlighted < (emails.num_limited - disp.first_visible - 1) ) {
if( disp.highlighted < (disp.num_rows - 3) ) {
disp.highlighted++;
} else {
if( (disp.first_visible += 1) >= emails.num_limited )
{ disp.first_visible = emails.num_limited - 1; }
}
}
} else {
disp.highlighted = disp.first_visible = 0;
}
break;
case '':
case '':
case ' ':
case SL_KEY_NPAGE:
if( emails.num_limited > 0 ) {
if( (disp.first_visible += disp.num_rows) >= emails.num_limited )
{ disp.first_visible = emails.num_limited - 1; }
if( disp.highlighted > (emails.num_limited - disp.first_visible) ) {
disp.highlighted = (emails.num_limited - disp.first_visible) - 1;
}
} else {
disp.highlighted = disp.first_visible = 0;
}
break;
case '?':
interactive_search(0, "");
disp.highlighted = disp.first_visible = 0;
break;
case '/':
interactive_search(1, "");
disp.highlighted = disp.first_visible = 0;
break;
default:
break;
}
}
/* we're done */
SLsmg_reset_smg();
SLang_reset_tty();
}
int SLsystem (char *cmd)
{
#ifdef SLANG_POSIX_SIGNALS
pid_t pid;
int status;
struct sigaction ignore;
# ifdef SIGINT
struct sigaction save_intr;
# endif
# ifdef SIGQUIT
struct sigaction save_quit;
# endif
# ifdef SIGCHLD
sigset_t child_mask, save_mask;
# endif
if (cmd == NULL) return 1;
ignore.sa_handler = SIG_IGN;
sigemptyset (&ignore.sa_mask);
ignore.sa_flags = 0;
# ifdef SIGINT
if (-1 == sigaction (SIGINT, &ignore, &save_intr))
return -1;
# endif
# ifdef SIGQUIT
if (-1 == sigaction (SIGQUIT, &ignore, &save_quit))
{
(void) sigaction (SIGINT, &save_intr, NULL);
return -1;
}
# endif
# ifdef SIGCHLD
sigemptyset (&child_mask);
sigaddset (&child_mask, SIGCHLD);
if (-1 == sigprocmask (SIG_BLOCK, &child_mask, &save_mask))
{
# ifdef SIGINT
(void) sigaction (SIGINT, &save_intr, NULL);
# endif
# ifdef SIGQUIT
(void) sigaction (SIGQUIT, &save_quit, NULL);
# endif
return -1;
}
# endif
pid = fork();
if (pid == -1)
status = -1;
else if (pid == 0)
{
/* Child */
# ifdef SIGINT
(void) sigaction (SIGINT, &save_intr, NULL);
# endif
# ifdef SIGQUIT
(void) sigaction (SIGQUIT, &save_quit, NULL);
# endif
# ifdef SIGCHLD
(void) sigprocmask (SIG_SETMASK, &save_mask, NULL);
# endif
execl ("/bin/sh", "sh", "-c", cmd, NULL);
_exit (127);
}
else
{
/* parent */
while (-1 == waitpid (pid, &status, 0))
{
# ifdef EINTR
if (errno == EINTR)
continue;
# endif
# ifdef ERESTARTSYS
if (errno == ERESTARTSYS)
continue;
# endif
status = -1;
break;
}
}
# ifdef SIGINT
if (-1 == sigaction (SIGINT, &save_intr, NULL))
status = -1;
# endif
# ifdef SIGQUIT
if (-1 == sigaction (SIGQUIT, &save_quit, NULL))
status = -1;
# endif
# ifdef SIGCHLD
if (-1 == sigprocmask (SIG_SETMASK, &save_mask, NULL))
status = -1;
# endif
return status;
#else /* No POSIX Signals */
# ifdef SIGINT
void (*sint)(int);
# endif
# ifdef SIGQUIT
void (*squit)(int);
# endif
int status;
# ifdef SIGQUIT
squit = SLsignal (SIGQUIT, SIG_IGN);
# endif
# ifdef SIGINT
sint = SLsignal (SIGINT, SIG_IGN);
# endif
status = system (cmd);
# ifdef SIGINT
SLsignal (SIGINT, sint);
# endif
# ifdef SIGQUIT
SLsignal (SIGQUIT, squit);
# endif
return status;
#endif /* POSIX_SIGNALS */
}
static void
tty_setup_sigwinch (void (*handler) (int))
{
(void) SLsignal (SIGWINCH, handler);
}
static void reset_tty (void)
{
SLsignal (SIGINT, last_sig_sigint);
}
static void init_tty (void)
{
last_sig_sigint = SLsignal (SIGINT, gnu_rl_sigint_handler);
}
static void deinit_sigtstp (void)
{
SLsignal (SIGTSTP, last_sig_sigtstp);
(void) SLang_remove_interrupt_hook (sigtstp_interrupt_hook, NULL);
}
static void math_floating_point_exception (int sig)
{
sig = errno;
(void) SLsignal (SIGFPE, math_floating_point_exception);
errno = sig;
}
