/**************************************************************** * * * Copyright 2001, 2013 Fidelity Information Services, Inc * * * * This source code contains the intellectual property * * of its copyright holder(s), and is made available * * under a license. If you do not know the terms of * * the license, please stop and do not read further. * * * ****************************************************************/ #include "mdef.h" #include #include #include #include "gtm_string.h" #include "iotcp_select.h" #include "io_params.h" #include "io.h" #include "trmdef.h" #include "iotimer.h" #include "gt_timer.h" #include "iottdef.h" #include "iott_edit.h" #include "stringpool.h" #include "gtmio.h" #include "eintr_wrappers.h" #include "send_msg.h" #include "outofband.h" #include "error.h" #include "std_dev_outbndset.h" #include "wake_alarm.h" #include "min_max.h" #ifdef UNICODE_SUPPORTED #include "gtm_icu_api.h" #include "gtm_utf8.h" #endif GBLDEF int4 spc_inp_prc; /* dummy: not used currently */ GBLDEF bool ctrlu_occurred; /* dummy: not used currently */ GBLDEF int term_error_line; /* record for cores */ GBLREF io_pair io_curr_device; GBLREF io_pair io_std_device; GBLREF bool prin_in_dev_failure; GBLREF spdesc stringpool; GBLREF volatile int4 outofband; GBLREF mv_stent *mv_chain; GBLREF stack_frame *frame_pointer; GBLREF unsigned char *msp, *stackbase, *stacktop, *stackwarn; GBLREF boolean_t dollar_zininterrupt; GBLREF int4 ctrap_action_is; GBLREF boolean_t gtm_utf8_mode; #ifdef UNICODE_SUPPORTED LITREF UChar32 u32_line_term[]; #endif GBLREF int AUTO_RIGHT_MARGIN, EAT_NEWLINE_GLITCH; GBLREF char *CURSOR_UP, *CURSOR_DOWN, *CURSOR_LEFT, *CURSOR_RIGHT, *CLR_EOL; GBLREF char *KEY_BACKSPACE, *KEY_DC; GBLREF char *KEY_DOWN, *KEY_LEFT, *KEY_RIGHT, *KEY_UP; GBLREF char *KEY_INSERT; GBLREF char *KEYPAD_LOCAL, *KEYPAD_XMIT; #ifdef __MVS__ # define SEND_KEYPAD_LOCAL #else # define SEND_KEYPAD_LOCAL \ if (edit_mode && NULL != KEYPAD_LOCAL && (keypad_len = STRLEN(KEYPAD_LOCAL))) /* embedded assignment */ \ DOWRITE(tt_ptr->fildes, KEYPAD_LOCAL, keypad_len); #endif LITREF unsigned char lower_to_upper_table[]; /* dc1 & dc3 have the same value in ASCII and EBCDIC */ static readonly char dc1 = 17; static readonly char dc3 = 19; static readonly unsigned char eraser[3] = { NATIVE_BS, NATIVE_SP, NATIVE_BS }; error_def(ERR_CTRAP); error_def(ERR_IOEOF); error_def(ERR_NOPRINCIO); error_def(ERR_ZINTRECURSEIO); error_def(ERR_STACKOFLOW); error_def(ERR_STACKCRIT); #ifdef UNICODE_SUPPORTED /* Maintenance of $ZB on a badchar error and returning partial data (if any) */ void iott_readfl_badchar(mval *vmvalptr, wint_t *dataptr32, int datalen, int delimlen, unsigned char *delimptr, unsigned char *strend, unsigned char *buffer_start) { int i, tmplen, len; unsigned char *delimend, *outptr, *outtop; wint_t *curptr32; io_desc *iod; if (0 < datalen && NULL != dataptr32) { /* Return how much input we got */ if (gtm_utf8_mode) { outptr = buffer_start; outtop = ((unsigned char *)dataptr32); curptr32 = dataptr32; for (i = 0; i < datalen && outptr < outtop; i++, curptr32++) outptr = UTF8_WCTOMB(*curptr32, outptr); vmvalptr->str.len = INTCAST(outptr - buffer_start); } else vmvalptr->str.len = datalen; vmvalptr->str.addr = (char *)buffer_start; if (buffer_start == stringpool.free) stringpool.free += vmvalptr->str.len; /* The BADCHAR error after this won't do this for us */ } if (NULL != strend && NULL != delimptr) { /* First find the end of the delimiter (max of 4 bytes) */ if (0 == delimlen) { for (delimend = delimptr; 4 >= delimlen && delimend < strend; ++delimend, ++delimlen) { if (UTF8_VALID(delimend, strend, tmplen)) break; } } if (0 < delimlen) { /* Set $ZB with the failing badchar */ iod = io_curr_device.in; memcpy(iod->dollar.zb, delimptr, MIN(delimlen, ESC_LEN - 1)); iod->dollar.zb[MIN(delimlen, ESC_LEN - 1)] = '\0'; memcpy(iod->dollar.key, delimptr, MIN(delimlen, DD_BUFLEN - 1)); iod->dollar.key[MIN(delimlen, DD_BUFLEN - 1)] = '\0'; } } } #endif int iott_readfl(mval *v, int4 length, int4 timeout) /* timeout in seconds */ { boolean_t ret, nonzerotimeout, timed, insert_mode, edit_mode, utf8_active, zint_restart, buffer_moved; uint4 mask; wint_t inchar, *current_32_ptr, *buffer_32_start, switch_char; unsigned char inbyte, *outptr, *outtop; #ifdef __MVS__ wint_t asc_inchar; #endif unsigned char more_buf[GTM_MB_LEN_MAX + 1], *more_ptr; /* to build up multi byte for character */ unsigned char *current_ptr; /* insert next character into buffer here */ unsigned char *buffer_start; /* beginning of non UTF8 buffer */ int msk_in, msk_num, rdlen, save_errno, selstat, status, ioptr_width, i, utf8_more; int exp_length; int inchar_width; /* display width of inchar */ int delchar_width; /* display width of deleted char */ int delta_width; /* display width change for replaced char */ int dx, dx_start; /* local dollar X, starting value */ int dx_instr, dx_outlen; /* wcwidth of string to insert point, whole string */ int dx_prev, dx_cur, dx_next;/* wcwidth of string to char BEFORE, AT and AFTER the insert point */ int instr; /* insert point in input string */ int outlen; /* total characters in line so far */ int keypad_len, backspace, delete; int up, down, right, left, insert_key; boolean_t escape_edit, empterm; int4 msec_timeout; /* timeout in milliseconds */ io_desc *io_ptr; d_tt_struct *tt_ptr; io_terminator outofbands; io_termmask mask_term; tt_interrupt *tt_state; mv_stent *mvc, *mv_zintdev; unsigned char *zb_ptr, *zb_top; ABS_TIME cur_time, end_time; fd_set input_fd; struct timeval input_timeval; struct timeval save_input_timeval; assert(stringpool.free >= stringpool.base); assert(stringpool.free <= stringpool.top); io_ptr = io_curr_device.in; tt_ptr = (d_tt_struct *)(io_ptr->dev_sp); assert(dev_open == io_ptr->state); iott_flush(io_curr_device.out); insert_mode = !(TT_NOINSERT & tt_ptr->ext_cap); /* get initial mode */ empterm = (TT_EMPTERM & tt_ptr->ext_cap); ioptr_width = io_ptr->width; utf8_active = gtm_utf8_mode ? (CHSET_M != io_ptr->ichset) : FALSE; /* if utf8_active, need room for multi byte characters plus wint_t buffer */ exp_length = utf8_active ? (int)(((SIZEOF(wint_t) * length) + (GTM_MB_LEN_MAX * length) + SIZEOF(gtm_int64_t))) : length; zint_restart = FALSE; if (tt_ptr->mupintr) { /* restore state to before job interrupt */ tt_state = &tt_ptr->tt_state_save; if (ttwhichinvalid == tt_state->who_saved) GTMASSERT; if (dollar_zininterrupt) { tt_ptr->mupintr = FALSE; tt_state->who_saved = ttwhichinvalid; rts_error_csa(CSA_ARG(NULL) VARLSTCNT(1) ERR_ZINTRECURSEIO); } assert(length == tt_state->length); if (ttread != tt_state->who_saved) GTMASSERT; /* ZINTRECURSEIO should have caught */ mv_zintdev = io_find_mvstent(io_ptr, FALSE); if (NULL != mv_zintdev && mv_zintdev->mv_st_cont.mvs_zintdev.buffer_valid) { /* looks good so use it */ buffer_start = (unsigned char *)mv_zintdev->mv_st_cont.mvs_zintdev.curr_sp_buffer.addr; current_ptr = buffer_start; mv_zintdev->mv_st_cont.mvs_zintdev.buffer_valid = FALSE; mv_zintdev->mv_st_cont.mvs_zintdev.io_ptr = NULL; if (mv_chain == mv_zintdev) POP_MV_STENT(); /* pop if top of stack */ buffer_moved = (buffer_start != tt_state->buffer_start); if (utf8_active) { /* need to properly align U32 buffer */ assert(exp_length == tt_state->exp_length); buffer_32_start = (wint_t *)ROUND_UP2((INTPTR_T)(buffer_start + (GTM_MB_LEN_MAX * length)), SIZEOF(gtm_int64_t)); if (buffer_moved && (((unsigned char *)buffer_32_start - buffer_start) != ((unsigned char *)tt_state->buffer_32_start - tt_state->buffer_start))) memmove(buffer_32_start, buffer_start + ((unsigned char *)tt_state->buffer_32_start - tt_state->buffer_start), (SIZEOF(wint_t) * length)); current_32_ptr = buffer_32_start; utf8_more = tt_state->utf8_more; more_ptr = tt_state->more_ptr; memcpy(more_buf, tt_state->more_buf, SIZEOF(more_buf)); } instr = tt_state->instr; outlen = tt_state->outlen; dx = tt_state->dx; dx_start = tt_state->dx_start; dx_instr = tt_state->dx_instr; dx_outlen = tt_state->dx_outlen; insert_mode = tt_state->insert_mode; end_time = tt_state->end_time; zb_ptr = tt_state->zb_ptr; zb_top = tt_state->zb_top; tt_state->who_saved = ttwhichinvalid; tt_ptr->mupintr = FALSE; zint_restart = TRUE; } } if (!zint_restart) { ENSURE_STP_FREE_SPACE(exp_length); buffer_start = current_ptr = stringpool.free; if (utf8_active) { buffer_32_start = (wint_t *)ROUND_UP2((INTPTR_T)(stringpool.free + (GTM_MB_LEN_MAX * length)), SIZEOF(gtm_int64_t)); current_32_ptr = buffer_32_start; } instr = outlen = 0; dx_instr = dx_outlen = 0; utf8_more = 0; /* --------------------------------------------------------- * zb_ptr is used to fill-in the value of $zb as we go * If we drop-out with error or otherwise permaturely, * consider $zb to be null. * --------------------------------------------------------- */ zb_ptr = io_ptr->dollar.zb; zb_top = zb_ptr + SIZEOF(io_ptr->dollar.zb) - 1; *zb_ptr = 0; io_ptr->esc_state = START; io_ptr->dollar.za = 0; io_ptr->dollar.zeof = FALSE; dx_start = (int)io_ptr->dollar.x; } v->str.len = 0; ret = TRUE; mask = tt_ptr->term_ctrl; mask_term = tt_ptr->mask_term; /* keep test in next line in sync with test in iott_rdone.c */ edit_mode = (0 != (TT_EDITING & tt_ptr->ext_cap) && !((TRM_NOECHO|TRM_PASTHRU) & mask)); if (!zint_restart) { if (mask & TRM_NOTYPEAHD) TCFLUSH(tt_ptr->fildes, TCIFLUSH, status); if (mask & TRM_READSYNC) { DOWRITERC(tt_ptr->fildes, &dc1, 1, status); if (0 != status) { io_ptr->dollar.za = 9; rts_error_csa(CSA_ARG(NULL) VARLSTCNT(1) status); } } } if (edit_mode) { /* remove ESC and editing control characters from terminator list */ mask_term.mask[ESC / NUM_BITS_IN_INT4] &= ~(1 << ESC); mask_term.mask[EDIT_SOL / NUM_BITS_IN_INT4] &= ~(1 << EDIT_SOL); mask_term.mask[EDIT_EOL / NUM_BITS_IN_INT4] &= ~(1 << EDIT_EOL); mask_term.mask[EDIT_DEOL / NUM_BITS_IN_INT4] &= ~(1 << EDIT_DEOL); mask_term.mask[EDIT_DELETE / NUM_BITS_IN_INT4] &= ~(1 << EDIT_DELETE); mask_term.mask[EDIT_LEFT / NUM_BITS_IN_INT4] &= ~(1 << EDIT_LEFT); mask_term.mask[EDIT_RIGHT / NUM_BITS_IN_INT4] &= ~(1 << EDIT_RIGHT); mask_term.mask[EDIT_ERASE / NUM_BITS_IN_INT4] &= ~(1 << EDIT_ERASE); if (!zint_restart) { /* to turn keypad on if possible */ #ifndef __MVS__ if (NULL != KEYPAD_XMIT && (keypad_len = STRLEN(KEYPAD_XMIT))) /* embedded assignment */ { DOWRITERC(tt_ptr->fildes, KEYPAD_XMIT, keypad_len, status); if (0 != status) { io_ptr->dollar.za = 9; rts_error_csa(CSA_ARG(NULL) VARLSTCNT(1) status); } } #endif dx_start = (dx_start + ioptr_width) % ioptr_width; /* normalize within width */ } } if (!zint_restart) dx = dx_start; nonzerotimeout = FALSE; if (NO_M_TIMEOUT == timeout) { timed = FALSE; input_timeval.tv_sec = 100; msec_timeout = NO_M_TIMEOUT; } else { timed = TRUE; input_timeval.tv_sec = timeout; msec_timeout = timeout2msec(timeout); if (!msec_timeout) { if (!zint_restart) iott_mterm(io_ptr); } else { nonzerotimeout = TRUE; sys_get_curr_time(&cur_time); if (!zint_restart) add_int_to_abs_time(&cur_time, msec_timeout, &end_time); } } input_timeval.tv_usec = 0; do { if (outofband) { if (jobinterrupt == outofband) { /* save state if jobinterrupt */ tt_state = &tt_ptr->tt_state_save; tt_state->who_saved = ttread; tt_state->length = length; tt_state->buffer_start = buffer_start; PUSH_MV_STENT(MVST_ZINTDEV); mv_chain->mv_st_cont.mvs_zintdev.curr_sp_buffer.addr = (char *)buffer_start; mv_chain->mv_st_cont.mvs_zintdev.curr_sp_buffer.len = exp_length; mv_chain->mv_st_cont.mvs_zintdev.buffer_valid = TRUE; mv_chain->mv_st_cont.mvs_zintdev.io_ptr = io_ptr; if (utf8_active) { tt_state->exp_length = exp_length; tt_state->buffer_32_start = buffer_32_start; tt_state->utf8_more = utf8_more; tt_state->more_ptr = more_ptr; memcpy(tt_state->more_buf, more_buf, SIZEOF(more_buf)); } if (buffer_start == stringpool.free) stringpool.free += exp_length; /* reserve space */ tt_state->instr = instr; tt_state->outlen = outlen; tt_state->dx = dx; tt_state->dx_start = dx_start; tt_state->dx_instr = dx_instr; tt_state->dx_outlen = dx_outlen; tt_state->insert_mode = insert_mode; tt_state->end_time = end_time; tt_state->zb_ptr = zb_ptr; tt_state->zb_top = zb_top; tt_ptr->mupintr = TRUE; } else { instr = outlen = 0; SEND_KEYPAD_LOCAL if (!msec_timeout) iott_rterm(io_ptr); } outofband_action(FALSE); break; } errno = 0; FD_ZERO(&input_fd); FD_SET(tt_ptr->fildes, &input_fd); assert(0 != FD_ISSET(tt_ptr->fildes, &input_fd)); /* the checks for EINTR below are valid and should not be converted to EINTR * wrapper macros, since the select/read is not retried on EINTR. */ save_input_timeval = input_timeval; /* take a copy and pass it because select() below might change it */ selstat = select(tt_ptr->fildes + 1, (void *)&input_fd, (void *)NULL, (void *)NULL, &save_input_timeval); if (selstat < 0) { if (EINTR != errno) { term_error_line = __LINE__; goto term_error; } } else if (0 == selstat) { if (timed) { ret = FALSE; break; } continue; /* select() timeout; keep going */ } else if (0 < (rdlen = (int)(read(tt_ptr->fildes, &inbyte, 1)))) /* This read is protected */ { assert(0 != FD_ISSET(tt_ptr->fildes, &input_fd)); /* -------------------------------------------------- * set prin_in_dev_failure to FALSE to indicate that * input device is working now. * -------------------------------------------------- */ prin_in_dev_failure = FALSE; if (tt_ptr->canonical) { if (0 == inbyte) { /* -------------------------------------- * This means that the device has hungup * -------------------------------------- */ io_ptr->dollar.zeof = TRUE; io_ptr->dollar.x = 0; io_ptr->dollar.za = 9; io_ptr->dollar.y++; tt_ptr->discard_lf = FALSE; if (io_ptr->error_handler.len > 0) rts_error_csa(CSA_ARG(NULL) VARLSTCNT(1) ERR_IOEOF); break; } else io_ptr->dollar.zeof = FALSE; } #ifdef UNICODE_SUPPORTED if (utf8_active) { if (tt_ptr->discard_lf) { /* saw CR last time so ignore following LF */ tt_ptr->discard_lf = FALSE; if (NATIVE_LF == inbyte) continue; } if (utf8_more) { /* needed extra bytes */ *more_ptr++ = inbyte; if (--utf8_more) continue; /* get next byte */ UTF8_MBTOWC(more_buf, more_ptr, inchar); if (WEOF == inchar) { /* invalid char */ io_ptr->dollar.za = 9; iott_readfl_badchar(v, buffer_32_start, outlen, (int)(more_ptr - more_buf), more_buf, more_ptr, buffer_start); utf8_badchar((int)(more_ptr - more_buf), more_buf, more_ptr, 0, NULL); /* BADCHAR */ break; } } else if (0 < (utf8_more = UTF8_MBFOLLOW(&inbyte))) /* assignment */ { more_ptr = more_buf; if (0 > utf8_more) { /* invalid character */ io_ptr->dollar.za = 9; *more_ptr++ = inbyte; iott_readfl_badchar(v, buffer_32_start, outlen, 1, more_buf, more_ptr, buffer_start); utf8_badchar(1, more_buf, more_ptr, 0, NULL); /* ERR_BADCHAR */ break; } else if (GTM_MB_LEN_MAX < utf8_more) { /* too big to be valid */ io_ptr->dollar.za = 9; *more_ptr++ = inbyte; iott_readfl_badchar(v, buffer_32_start, outlen, 1, more_buf, more_ptr, buffer_start); utf8_badchar(1, more_buf, more_ptr, 0, NULL); /* ERR_BADCHAR */ break; } else { *more_ptr++ = inbyte; continue; /* get next byte */ } } else { /* single byte */ more_ptr = more_buf; *more_ptr++ = inbyte; UTF8_MBTOWC(more_buf, more_ptr, inchar); if (WEOF == inchar) { /* invalid char */ io_ptr->dollar.za = 9; iott_readfl_badchar(v, buffer_32_start, outlen, 1, more_buf, more_ptr, buffer_start); utf8_badchar(1, more_buf, more_ptr, 0, NULL); /* ERR_BADCHAR */ break; } } if (!tt_ptr->done_1st_read) { tt_ptr->done_1st_read = TRUE; if (BOM_CODEPOINT == inchar) continue; } if (mask & TRM_CONVERT) inchar = u_toupper(inchar); GTM_IO_WCWIDTH(inchar, inchar_width); } else { #endif if (mask & TRM_CONVERT) NATIVE_CVT2UPPER(inbyte, inbyte); inchar = inbyte; inchar_width = 1; #ifdef UNICODE_SUPPORTED } #endif GETASCII(asc_inchar,inchar); if (!edit_mode && (dx >= ioptr_width) && io_ptr->wrap && !(mask & TRM_NOECHO)) { DOWRITE(tt_ptr->fildes, NATIVE_TTEOL, STRLEN(NATIVE_TTEOL)); dx = 0; } if ((' ' > INPUT_CHAR) && (tt_ptr->enbld_outofbands.mask & (1 << INPUT_CHAR))) { /* ctrap supercedes editing so check first */ instr = outlen = 0; io_ptr->dollar.za = 9; std_dev_outbndset(INPUT_CHAR); /* it needs ASCII? */ SEND_KEYPAD_LOCAL if (!msec_timeout) iott_rterm(io_ptr); rts_error_csa(CSA_ARG(NULL) VARLSTCNT(3) ERR_CTRAP, 1, ctrap_action_is); break; } if (((0 != (mask & TRM_ESCAPE)) || edit_mode) && ((NATIVE_ESC == inchar) || (START != io_ptr->esc_state))) { if (zb_ptr >= zb_top UNICODE_ONLY(|| (utf8_active && ASCII_MAX < inchar))) { /* $zb overflow or not ASCII in utf8 mode */ io_ptr->dollar.za = 2; break; } *zb_ptr++ = (unsigned char)inchar; iott_escape(zb_ptr - 1, zb_ptr, io_ptr); *(zb_ptr - 1) = (unsigned char)INPUT_CHAR; /* need to store ASCII value */ if (FINI == io_ptr->esc_state && !edit_mode) break; if (BADESC == io_ptr->esc_state) { /* Escape sequence failed parse */ io_ptr->dollar.za = 2; break; } /* -------------------------------------------------------------------- * In escape sequence...do not process further, but get next character * -------------------------------------------------------------------- */ } else { /* SIMPLIFY THIS! */ if (!utf8_active || ASCII_MAX >= INPUT_CHAR) { /* may need changes to allow terminator > MAX_ASCII and/or LS and PS if default_mask_term */ msk_num = (uint4)INPUT_CHAR / NUM_BITS_IN_INT4; msk_in = (1 << ((uint4)INPUT_CHAR % NUM_BITS_IN_INT4)); if (msk_in & mask_term.mask[msk_num]) { *zb_ptr++ = (unsigned char)INPUT_CHAR; if (utf8_active && ASCII_CR == INPUT_CHAR) tt_ptr->discard_lf = TRUE; break; } } else if (utf8_active && tt_ptr->default_mask_term && (u32_line_term[U32_LT_NL] == INPUT_CHAR || u32_line_term[U32_LT_LS] == INPUT_CHAR || u32_line_term[U32_LT_PS] == INPUT_CHAR)) { /* UTF and default terminators and Unicode terminators above ASCII_MAX */ zb_ptr = UTF8_WCTOMB(INPUT_CHAR, zb_ptr); break; } assert(0 <= instr); assert(!edit_mode || 0 <= dx); assert(outlen >= instr); /* For most of the terminal the 'kbs' string capability is a byte in length. It means that it is Not treated as escape sequence. So explicitly check if the input corresponds to the 'kbs' */ if ((((int)inchar == tt_ptr->ttio_struct->c_cc[VERASE]) || (empterm && ('\0' == KEY_BACKSPACE[1]) && (inchar == KEY_BACKSPACE[0]))) && !(mask & TRM_PASTHRU)) { if (0 < instr && (edit_mode || 0 < dx)) { dx_prev = compute_dx(BUFF_ADDR(0), instr - 1, ioptr_width, dx_start); delchar_width = dx_instr - dx_prev; if (edit_mode) { if (!(mask & TRM_NOECHO)) move_cursor_left(dx, delchar_width); dx = (dx - delchar_width + ioptr_width) % ioptr_width; } else dx -= delchar_width; instr--; dx_instr -= delchar_width; STORE_OFF(' ', outlen); outlen--; if (!(mask & TRM_NOECHO) && edit_mode) { IOTT_COMBINED_CHAR_CHECK; } MOVE_BUFF(instr, BUFF_ADDR(instr + 1), outlen - instr); if (!(mask & TRM_NOECHO)) { if (!edit_mode) { for (i = 0; i < delchar_width; i++) { DOWRITERC(tt_ptr->fildes, eraser, SIZEOF(eraser), status) if (0 != status) break; } } else { /* First write spaces on all the display columns that * the current string occupied. Then overwrite that * with the new string. This way we are guaranteed all * display columns are clean. */ status = write_str_spaces(dx_outlen - dx_instr, dx, FALSE); if (0 == status) status = write_str(BUFF_ADDR(instr), outlen - instr, dx, FALSE, FALSE); } if (0 != status) { term_error_line = __LINE__; goto term_error; } } dx_outlen = compute_dx(BUFF_ADDR(0), outlen, ioptr_width, dx_start); } else if (empterm && (0 == outlen)) { assert(zb_ptr == io_ptr->dollar.zb); *zb_ptr++ = (unsigned char)INPUT_CHAR; break; } } else { if (!edit_mode) switch_char = 'A'; /* force to default case */ else switch_char = inchar; switch (switch_char) { case EDIT_SOL: /* ctrl A start of line */ { int num_lines_above; int num_chars_left; num_lines_above = (dx_instr + dx_start) / ioptr_width; num_chars_left = dx - dx_start; if (!(mask & TRM_NOECHO)) { if (0 != move_cursor(tt_ptr->fildes, num_lines_above, num_chars_left)) { term_error_line = __LINE__; goto term_error; } } instr = dx_instr = 0; dx = dx_start; break; } case EDIT_EOL: /* ctrl E end of line */ { int num_lines_above; int num_chars_left; num_lines_above = (dx_instr + dx_start) / ioptr_width - (dx_outlen + dx_start) / ioptr_width; /* For some reason, a CURSOR_DOWN ("\n") seems to reposition the cursor * at the beginning of the next line rather than maintain the vertical * position. Therefore if we are moving down, we need to calculate * the num_chars_left differently to accommodate this. */ if (0 <= num_lines_above) num_chars_left = dx - (dx_outlen + dx_start) % ioptr_width; else num_chars_left = - ((dx_outlen + dx_start) % ioptr_width); if (!(mask & TRM_NOECHO)) { if (0 != move_cursor(tt_ptr->fildes, num_lines_above, num_chars_left)) { term_error_line = __LINE__; goto term_error; } } instr = outlen; dx_instr = dx_outlen; dx = (dx_outlen + dx_start) % ioptr_width; break; } case EDIT_LEFT: /* ctrl B left one */ { if (instr != 0) { dx_prev = compute_dx(BUFF_ADDR(0), instr - 1, ioptr_width, dx_start); inchar_width = dx_instr - dx_prev; if (!(mask & TRM_NOECHO)) { if (0 != move_cursor_left(dx, inchar_width)) { term_error_line = __LINE__; goto term_error; } } instr--; dx = (dx - inchar_width + ioptr_width) % ioptr_width; dx_instr -= inchar_width; } break; } case EDIT_RIGHT: /* ctrl F right one */ { if (instr < outlen) { dx_next = compute_dx(BUFF_ADDR(0), instr + 1, ioptr_width, dx_start); inchar_width = dx_next - dx_instr; if (!(mask & TRM_NOECHO)) { if (0 != move_cursor_right(dx, inchar_width)) { term_error_line = __LINE__; goto term_error; } } instr++; dx = (dx + inchar_width) % ioptr_width; dx_instr += inchar_width; } break; } case EDIT_DEOL: /* ctrl K delete to end of line */ { if (!(mask & TRM_NOECHO)) { if (0 != write_str_spaces(dx_outlen - dx_instr, dx, FALSE)) { term_error_line = __LINE__; goto term_error; } } SET_BUFF(instr, ' ', outlen - instr); outlen = instr; dx_outlen = dx_instr; break; } case EDIT_ERASE: /* ctrl U delete whole line */ { int num_lines_above; int num_chars_left; num_lines_above = (dx_instr + dx_start) / ioptr_width; num_chars_left = dx - dx_start; SET_BUFF(0, ' ', outlen); if (!(mask & TRM_NOECHO)) { status = move_cursor(tt_ptr->fildes, num_lines_above, num_chars_left); if (0 != status || 0 != write_str_spaces(dx_outlen, dx_start, FALSE)) { term_error_line = __LINE__; goto term_error; } } instr = 0; outlen = 0; dx = dx_start; dx_instr = dx_outlen = 0; break; } case EDIT_DELETE: /* ctrl D delete char */ { if (instr < outlen) { STORE_OFF(' ', outlen); outlen--; if (!(mask & TRM_NOECHO)) { IOTT_COMBINED_CHAR_CHECK; } MOVE_BUFF(instr, BUFF_ADDR(instr + 1), outlen - instr); if (!(mask & TRM_NOECHO)) { /* First write spaces on all the display columns that * the current string occupied. Then overwrite that * with the new string. This way we are guaranteed all * display columns are clean. */ if (0 != write_str_spaces(dx_outlen - dx_instr, dx, FALSE)) { term_error_line = __LINE__; goto term_error; } if (0 != write_str(BUFF_ADDR(instr), outlen - instr, dx, FALSE, FALSE)) { term_error_line = __LINE__; goto term_error; } } dx_outlen = compute_dx(BUFF_ADDR(0), outlen, ioptr_width, dx_start); } break; } default: { if (outlen > instr) { if (insert_mode) MOVE_BUFF(instr + 1, BUFF_ADDR(instr), outlen - instr) else if (edit_mode && !insert_mode) { /* only needed if edit && !insert_mode && not at end */ GTM_IO_WCWIDTH(GET_OFF(instr), delchar_width); delta_width = inchar_width - delchar_width; } } STORE_OFF(inchar, instr); if (!(mask & TRM_NOECHO)) { if (!edit_mode) { term_error_line = __LINE__; status = iott_write_raw(tt_ptr->fildes, BUFF_ADDR(instr), 1); if (0 <= status) status = 0; else status = errno; } else if (instr == outlen) { term_error_line = __LINE__; status = write_str(BUFF_ADDR(instr), 1, dx, FALSE, FALSE); } else { /* First write spaces on all the display columns that the * current string occupied. Then overwrite that with the * new string. This way we are guaranteed all display * columns are clean. Note that this space overwrite is * needed even in case of insert mode because due to * differing wide-character alignments before and after * the insert, it is possible that a column might be left * empty in the post insert write of the new string even * though it had something displayed before. */ term_error_line = __LINE__; status = write_str_spaces(dx_outlen - dx_instr, dx, FALSE); if (0 == status) { term_error_line = __LINE__; status = write_str(BUFF_ADDR(instr), outlen - instr + (insert_mode ? 1 : 0), dx, FALSE, FALSE); } } if (0 != status) goto term_error; } if (insert_mode || instr == outlen) outlen++; instr++; if (edit_mode) { /* Compute value of dollarx at the new cursor position */ dx_cur = compute_dx(BUFF_ADDR(0), instr, ioptr_width, dx_start); inchar_width = dx_cur - dx_instr; if (!(mask & TRM_NOECHO)) { term_error_line = __LINE__; status = move_cursor_right(dx, inchar_width); if (0 != status) goto term_error; } } if (!edit_mode) { dx += inchar_width; dx_instr += inchar_width; dx_outlen += inchar_width; } else if (insert_mode || instr >= outlen) { /* at end or insert */ dx = (dx + inchar_width) % ioptr_width; dx_instr = dx_cur; dx_outlen = compute_dx(BUFF_ADDR(0), outlen, ioptr_width, dx_start); } else { /* replaced character */ dx = (dx + inchar_width) % ioptr_width; dx_instr = dx_cur; dx_outlen = compute_dx(BUFF_ADDR(0), outlen, ioptr_width, dx_start); } break; } } } } /* Ensure that the actual display position of the current character matches the computed value */ assert(!edit_mode || dx_instr == compute_dx(BUFF_ADDR(0), instr, ioptr_width, dx_start)); assert(!edit_mode || dx_outlen == compute_dx(BUFF_ADDR(0), outlen, ioptr_width, dx_start)); } else if (0 == rdlen) { if (0 < selstat) { /* this should be the only possibility */ io_ptr->dollar.zeof = TRUE; io_ptr->dollar.x = 0; io_ptr->dollar.za = 0; io_ptr->dollar.y++; if (io_curr_device.in == io_std_device.in) { if (!prin_in_dev_failure) prin_in_dev_failure = TRUE; else { send_msg_csa(CSA_ARG(NULL) VARLSTCNT(1) ERR_NOPRINCIO); stop_image_no_core(); } } if (io_ptr->dollar.zeof) { io_ptr->dollar.za = 9; SEND_KEYPAD_LOCAL rts_error_csa(CSA_ARG(NULL) VARLSTCNT(1) ERR_IOEOF); } else { io_ptr->dollar.zeof = TRUE; io_ptr->dollar.za = 0; SEND_KEYPAD_LOCAL if (0 < io_ptr->error_handler.len) rts_error_csa(CSA_ARG(NULL) VARLSTCNT(1) ERR_IOEOF); } break; } if (0 == errno) { /* eof */ io_ptr->dollar.zeof = TRUE; io_ptr->dollar.x = 0; io_ptr->dollar.za = 0; io_ptr->dollar.y++; SEND_KEYPAD_LOCAL if (0 < io_ptr->error_handler.len) rts_error_csa(CSA_ARG(NULL) VARLSTCNT(1) ERR_IOEOF); break; } } else if (EINTR != errno) /* rdlen < 0 */ { term_error_line = __LINE__; goto term_error; } if (FINI == io_ptr->esc_state) { int zb_len = (int)(zb_ptr - io_ptr->dollar.zb); escape_edit = FALSE; down = strncmp((const char *)io_ptr->dollar.zb, KEY_DOWN, zb_len); up = strncmp((const char *)io_ptr->dollar.zb, KEY_UP, zb_len); right = strncmp((const char *)io_ptr->dollar.zb, KEY_RIGHT, zb_len); left = strncmp((const char *)io_ptr->dollar.zb, KEY_LEFT, zb_len); backspace = delete = insert_key = -1; if (KEY_BACKSPACE != NULL) backspace = strncmp((const char *)io_ptr->dollar.zb, KEY_BACKSPACE, zb_len); if (KEY_DC != NULL) delete = strncmp((const char *)io_ptr->dollar.zb, KEY_DC, zb_len); if (KEY_INSERT != NULL && '\0' != KEY_INSERT[0]) insert_key = strncmp((const char *)io_ptr->dollar.zb, KEY_INSERT, zb_len); if (backspace == 0 || delete == 0) { if (instr > 0) { dx_prev = compute_dx(BUFF_ADDR(0), instr - 1, ioptr_width, dx_start); delchar_width = dx_instr - dx_prev; if (!(mask & TRM_NOECHO)) { term_error_line = __LINE__; status = move_cursor_left(dx, delchar_width); } dx = (dx - delchar_width + ioptr_width) % ioptr_width; instr--; dx_instr -= delchar_width; STORE_OFF(' ', outlen); outlen--; if (!(mask & TRM_NOECHO)) { IOTT_COMBINED_CHAR_CHECK; } MOVE_BUFF(instr, BUFF_ADDR(instr + 1), outlen - instr); if (!(mask & TRM_NOECHO)) { /* First write spaces on all the display columns that the current string occupied. * Then overwrite that with the new string. This way we are guaranteed all * display columns are clean. */ if (0 == status) { term_error_line = __LINE__; status = write_str_spaces(dx_outlen - dx_instr, dx, FALSE); } if (0 == status) { term_error_line = __LINE__; status = write_str(BUFF_ADDR(instr), outlen - instr, dx, FALSE, FALSE); } if (0 != status) goto term_error; } dx_outlen = compute_dx(BUFF_ADDR(0), outlen, ioptr_width, dx_start); } else if (empterm && 0 == outlen) { assert(instr == 0); break; } escape_edit = TRUE; } if (up == 0 || down == 0) { /* move cursor to start of field */ if (0 < instr) { if (0 != move_cursor(tt_ptr->fildes, ((dx_instr + dx_start) / ioptr_width), (dx - dx_start))) { term_error_line = __LINE__; goto term_error; } } instr = (int)tt_ptr->recall_buff.len; if (length < instr) instr = length; /* restrict to length of read */ if (0 != instr) { /* need to blank old output first */ SET_BUFF(instr, ' ', outlen); if (0 != write_str_spaces(dx_outlen, dx_start, FALSE)) { term_error_line = __LINE__; goto term_error; } MOVE_BUFF(0, tt_ptr->recall_buff.addr, instr); if (0 != write_str(BUFF_ADDR(0), instr, dx_start, TRUE, FALSE)) { term_error_line = __LINE__; goto term_error; } } dx_instr = dx_outlen = tt_ptr->recall_width; dx = (unsigned)(dx_instr + dx_start) % ioptr_width; outlen = instr; escape_edit = TRUE; } else if ( !(mask & TRM_NOECHO) && !(right == 0 && instr == outlen) && !(left == 0 && instr == 0)) { if (right == 0) { dx_next = compute_dx(BUFF_ADDR(0), instr + 1, ioptr_width, dx_start); inchar_width = dx_next - dx_instr; if (0 != move_cursor_right(dx, inchar_width)) { term_error_line = __LINE__; goto term_error; } instr++; dx = (dx + inchar_width) % ioptr_width; dx_instr += inchar_width; } if (left == 0) { dx_prev = compute_dx(BUFF_ADDR(0), instr - 1, ioptr_width, dx_start); inchar_width = dx_instr - dx_prev; if (0 != move_cursor_left(dx, inchar_width)) { term_error_line = __LINE__; goto term_error; } instr--; dx = (dx - inchar_width + ioptr_width) % ioptr_width; dx_instr -= inchar_width; } } if (0 == insert_key) insert_mode = !insert_mode; /* toggle */ if (0 == right || 0 == left || 0 == insert_key) escape_edit = TRUE; if (escape_edit || (0 == (TRM_ESCAPE & mask))) { /* reset dollar zb if editing function or not trm_escape */ memset(io_ptr->dollar.zb, '\0', SIZEOF(io_ptr->dollar.zb)); io_ptr->esc_state = START; zb_ptr = io_ptr->dollar.zb; zb_top = zb_ptr + SIZEOF(io_ptr->dollar.zb) - 1; } else break; /* not edit function and TRM_ESCAPE */ } if (nonzerotimeout) { sys_get_curr_time(&cur_time); cur_time = sub_abs_time(&end_time, &cur_time); if (0 > cur_time.at_sec) { ret = FALSE; break; } input_timeval.tv_sec = cur_time.at_sec; input_timeval.tv_usec = (gtm_tv_usec_t)cur_time.at_usec; } } while (outlen < length); *zb_ptr++ = 0; memcpy(io_ptr->dollar.key, io_ptr->dollar.zb, (zb_ptr - io_ptr->dollar.zb)); if (!msec_timeout) { iott_rterm(io_ptr); if (0 == outlen && ((io_ptr->dollar.zb + 1) == zb_ptr)) /* No input and no delimiter seen */ ret = FALSE; } if (mask & TRM_READSYNC) { DOWRITERC(tt_ptr->fildes, &dc3, 1, status); if (0 != status) { io_ptr->dollar.za = 9; rts_error_csa(CSA_ARG(NULL) VARLSTCNT(1) status); } } SEND_KEYPAD_LOCAL /* to turn keypad off if possible */ if (outofband && jobinterrupt != outofband) { v->str.len = 0; io_ptr->dollar.za = 9; return(FALSE); } #ifdef UNICODE_SUPPORTED if (utf8_active) { outptr = buffer_start; outtop = ((unsigned char *)buffer_32_start); current_32_ptr = buffer_32_start; for (i = 0; i < outlen && outptr < outtop; i++, current_32_ptr++) outptr = UTF8_WCTOMB(*current_32_ptr, outptr); v->str.len = INTCAST(outptr - buffer_start); } else #endif v->str.len = outlen; v->str.addr = (char *)buffer_start; if (edit_mode) { /* store in recall buffer */ if ((BUFF_CHAR_SIZE * outlen) > tt_ptr->recall_size) { if (tt_ptr->recall_buff.addr) free(tt_ptr->recall_buff.addr); tt_ptr->recall_size = (int)(BUFF_CHAR_SIZE * outlen); tt_ptr->recall_buff.addr = malloc(tt_ptr->recall_size); } tt_ptr->recall_width = dx_outlen; tt_ptr->recall_buff.len = outlen; memcpy(tt_ptr->recall_buff.addr, BUFF_ADDR(0), BUFF_CHAR_SIZE * outlen); } if (!(mask & TRM_NOECHO)) { if ((io_ptr->dollar.x += dx_outlen) >= ioptr_width && io_ptr->wrap) { io_ptr->dollar.y += (io_ptr->dollar.x / ioptr_width); if (io_ptr->length) io_ptr->dollar.y %= io_ptr->length; io_ptr->dollar.x %= ioptr_width; if (0 == io_ptr->dollar.x) DOWRITE(tt_ptr->fildes, NATIVE_TTEOL, STRLEN(NATIVE_TTEOL)); } } return ((short)ret); term_error: save_errno = errno; io_ptr->dollar.za = 9; tt_ptr->discard_lf = FALSE; SEND_KEYPAD_LOCAL /* to turn keypad off if possible */ if (!msec_timeout) iott_rterm(io_ptr); rts_error_csa(CSA_ARG(NULL) VARLSTCNT(1) save_errno); return FALSE; }