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1.1 ! root 1: /* D.L.Buck and Associates, Inc. - 84/08/27 ! 2: * ! 3: * COPYRIGHT NOTICE: ! 4: * Copyright c 1984 - An unpublished work by ! 5: * D.L.Buck and Associates, Inc. ! 6: * ! 7: * PROPRIETARY RIGHTS NOTICE: ! 8: * All rights reserved. This document and program contains ! 9: * proprietary information of D.L.Buck and Associates,Inc. ! 10: * of San Jose, California, U.S.A., embodying confidential ! 11: * information, ideas, and expressions, no part of which ! 12: * may be reproduced, or transmitted in any form or by any ! 13: * means, electronic, mechanical, or otherwise, without ! 14: * the written permission of D.L.Buck and Associates, Inc. ! 15: * ! 16: * NAME ! 17: * emulate ! 18: * ! 19: * SYNOPSIS ! 20: * emulate() ! 21: * ! 22: * DESCRIPTION ! 23: * emulate is the 3277 emulation routine. User input, including PF and ! 24: * PA key handling and cursor movement, and special commands are handled ! 25: * here. emulate is called by em3277. ! 26: */ ! 27: ! 28: #include "local.h" ! 29: #include <signal.h> ! 30: #include <bsc/bscio.h> ! 31: #include <em.h> ! 32: ! 33: #define ERROR -1 ! 34: #define CMDPRE 033 /* indicates a command code follows */ ! 35: #define RDMOD '6' /* read modified command */ ! 36: #define RDBUF '2' /* read buffer command */ ! 37: ! 38: #ifndef lint ! 39: static char sccsid[] = "@(#)emulate.c 1.34 REL"; ! 40: #endif ! 41: ! 42: extern long dev_navail(); ! 43: ! 44: /* statistics variables */ ! 45: static int first = 1; ! 46: extern int rb_ctr; /* received blocks counter */ ! 47: extern int ascii; /* 1=ascii code, 0=ebcdic code */ ! 48: int rsp_ctr; /* response counter */ ! 49: int trax_ctr; /* transaction counter */ ! 50: long atm; /* used to compute response and transaction time */ ! 51: long btm; /* used to compute response time */ ! 52: long ctm; /* used to compute transaction time */ ! 53: long lrsp_tm; /* last request's response time */ ! 54: long rsp_tm; /* used to accumulate total response time */ ! 55: long trax_tm; /* used to accumulate total transaction time */ ! 56: long ltrax_tm; /* last request's transaction time */ ! 57: long times(); ! 58: extern struct tbuffer { ! 59: long utime; ! 60: long stime; ! 61: long cutime; ! 62: long cstime; ! 63: } rspbuf; ! 64: ! 65: extern char aaid_tbl[]; /* ascii aid encoding table - found in emreadmod */ ! 66: extern char eaid_tbl[]; /* ebcdic aid encoding table - found in emreadmod */ ! 67: ! 68: extern char *SO; /* standout sequence for this terminal */ ! 69: extern char *SE; /* standend sequence for this terminal */ ! 70: ! 71: /* myscr[10240+5] makes sure there's room for characters leftover from the last ! 72: buffer processing (emprocbuf) at the beginning of this buffer. E.g. ! 73: an SBA came across in the last buffer and the 2-byte address supposed ! 74: to be attached to it didn't */ ! 75: char myscr[10240+5]; ! 76: extern int devfd; ! 77: extern int errno; ! 78: extern struct bscio gp; ! 79: int pr_ok = 1; /* 1=ok to print; 0=ignore print commands */ ! 80: ! 81: char aid_val; ! 82: int lastkey; /* contains last PF or PA key entered */ ! 83: emulate() ! 84: { ! 85: int emgetchar(); ! 86: int grabbed; ! 87: register int len; /* number of chars read in thru devfd */ ! 88: int f; ! 89: int count; ! 90: register int endfld; ! 91: register int stat; ! 92: int i; /* index */ ! 93: int ocursaddr; ! 94: int termreset(); /* reset input inhibited terminal status */ ! 95: register char chr; ! 96: register char *myptr; ! 97: register int mylen; ! 98: register int mysize; ! 99: ! 100: char rdchk[2]; /* 1st 2 chars of each received buffer ! 101: go here to check for read modified ! 102: and read buffer commands from the ! 103: remote host. */ ! 104: signal(SIGINT,termreset); ! 105: updstat(MYJOB); ! 106: aid_val = ascii?0x2d:0x60; ! 107: lastkey = 0; ! 108: #ifdef DEBUG ! 109: f = open("procbuf",0); ! 110: #endif ! 111: fiximage(0); /* Initialize screen variables */ ! 112: ! 113: while (1) { /* Until Quit Command entered ... */ ! 114: myptr = &myscr[5]; ! 115: mysize = sizeof myscr - 5; ! 116: mylen = 0; ! 117: /* read from the comm device */ ! 118: READ: ! 119: #ifdef DEBUG ! 120: read(f, &count, sizeof count); ! 121: len = read(f, &myscr[5], count); ! 122: if (len < 0) ! 123: exit(0); ! 124: if (len > 0) { ! 125: ++rb_ctr; ! 126: mylen = len; ! 127: btm = times(&rspbuf); ! 128: if (atm) { ! 129: ++rsp_ctr; ! 130: lrsp_tm = btm - atm; ! 131: rsp_tm += lrsp_tm; ! 132: } ! 133: } ! 134: #else ! 135: while ((len = read(devfd,myptr,mysize)) > 0 && ! 136: mysize > 0) { ! 137: rdchk[0] = myptr[0]; /* Save 1st 2 bytes */ ! 138: rdchk[1] = myptr[1]; ! 139: myptr += len; ! 140: mysize -= len; ! 141: mylen += len; ! 142: ! 143: /* check for read modified or read buffer command from host -- ! 144: if there, call emreadmod() or emreadbuf() immediately, then ! 145: go back to the top of the read routine. */ ! 146: /*** rdchk[0] = myscr[5]; rdchk[1] = myscr[6]; ***/ ! 147: if (!ascii) ! 148: ebcasc(rdchk,2); ! 149: if (mylen && ! 150: (rdchk[0]==CMDPRE && ! 151: (rdchk[1]==RDMOD || rdchk[1]==RDBUF))) { ! 152: updstat(status | SYS_AVAIL); ! 153: /* Did we recv. anything before RDMOD or RDBUF? */ ! 154: /* by checking if they are at the beginning of buf */ ! 155: /* then&dai 5/51/85 */ ! 156: if ( (myptr-2) != &myscr[5]) { ! 157: mylen -= 2; ! 158: emprocbuf(&myscr[5],mylen); ! 159: } ! 160: if (rdchk[1] == RDMOD) ! 161: emreadmod(lastkey); ! 162: else ! 163: emreadbuf(); ! 164: goto lupe; ! 165: } ! 166: ++rb_ctr; ! 167: } ! 168: #endif ! 169: if (len < 0 && (errno == EINTR || errno == EAGAIN) && ! 170: mylen != 0) goto READ; ! 171: ! 172: if (len < 0) { /* Check out nature of error */ ! 173: get_errors(); ! 174: /* Any serious errors? */ ! 175: if (gp.b_flags == BSCNDSR || ! 176: gp.b_flags == BSCTXTO || ! 177: gp.b_flags == BSCNBID) ! 178: return(-1); ! 179: } ! 180: ! 181: if (mylen) { ! 182: ctm = times(&rspbuf); ! 183: emprocbuf(&myscr[5],mylen); ! 184: if (atm) { ! 185: ltrax_tm = ctm - atm; ! 186: trax_tm += ltrax_tm; ! 187: ++trax_ctr; ! 188: atm = 0L; ! 189: } ! 190: if (do_screen && !(status & LOCK_OUT)) { ! 191: if (LINES <= 24) { ! 192: touchwin(sub_vterm); ! 193: wrefresh(sub_vterm); ! 194: } ! 195: wmove(vterm_scr,ROW,COL); ! 196: wrefresh(vterm_scr); ! 197: } ! 198: } ! 199: if (first) { ! 200: first = 0; ! 201: grabbed = CLEAR; ! 202: } ! 203: else grabbed = emgetchar(); ! 204: if (grabbed == NOCHAR) ! 205: continue; ! 206: if ((status & LOCK_OUT) && grabbed != ESC && ! 207: grabbed != ERASE_INP && grabbed != RESET) ! 208: continue; ! 209: switch(grabbed) { ! 210: case OTHER: ! 211: break; ! 212: case NOCHAR: ! 213: break; ! 214: case ERROR: ! 215: return(-1); ! 216: case CARRET: ! 217: cursaddr += (SCREENWIDTH - COL); ! 218: if (cursaddr >= (MAXSCREENSIZE - 1)) ! 219: cursaddr = 0; ! 220: if (scrn_image[cursaddr] == (char)ATTRCODE) ! 221: ++cursaddr; ! 222: curfield = scrn_xref[cursaddr]; ! 223: if (prot_attr(fldattr[curfield])) goto tabtime; ! 224: break; ! 225: case BACKSP: ! 226: case LEFT: ! 227: if (--cursaddr < 0) ! 228: cursaddr = MAXSCREENSIZE - 1; ! 229: break; ! 230: case DOWN: ! 231: cursaddr += SCREENWIDTH; ! 232: if (cursaddr >= MAXSCREENSIZE) ! 233: cursaddr -= MAXSCREENSIZE; ! 234: break; ! 235: case UPAR: ! 236: if ((cursaddr -= SCREENWIDTH) < 0) ! 237: cursaddr += MAXSCREENSIZE; ! 238: break; ! 239: case RIGHT: ! 240: if (++cursaddr >= MAXSCREENSIZE) ! 241: cursaddr = 0; ! 242: break; ! 243: case DELCHR: ! 244: /* Delete one character at cursaddr, moving ! 245: * characters within the same field and on ! 246: * the same line to the left one position, ! 247: * filling in the rightmost vacated position ! 248: * with a NULL character. ! 249: * 1. Check field for protected, or cursaddr ! 250: * being on attribute character. ! 251: */ ! 252: if (i = fldcheck()) ! 253: goto STAT_CHK; ! 254: /* 2. Calculate location of last field position. */ ! 255: endfld=fldstart[curfield] + (fldmax[curfield]-1); ! 256: if (endfld > MAXSCREENSIZE) ! 257: endfld -= MAXSCREENSIZE; ! 258: /* 3. If field continues on next line, stop at */ ! 259: /* end of this line. */ ! 260: if ((endfld/SCREENWIDTH) != ROW) ! 261: endfld = cursaddr + (SCREENWIDTH - COL)-1; ! 262: ocursaddr = cursaddr; ! 263: /* 4. If field highlighted, change screen mode */ ! 264: if (do_screen) ! 265: if (hl_attr(fldattr[curfield])) ! 266: wstandout(vterm_scr); ! 267: else ! 268: wstandend(vterm_scr); ! 269: /* 5. Begin moving characters left to endfield */ ! 270: do { ! 271: if (cursaddr == endfld) break; ! 272: if (cursaddr+1 > MAXSCREENSIZE) ! 273: chr = scrn_image[0]; ! 274: else chr = scrn_image[cursaddr+1]; ! 275: scrn_image[cursaddr] = chr; ! 276: if (do_screen) { ! 277: if (chr == '\0') ! 278: chr = ' '; ! 279: else if (chr == 0x1c) ! 280: chr = '*'; /* DUP */ ! 281: else if (chr == 0x1e) ! 282: chr = ';'; /* FM */ ! 283: if (!invis_attr(fldattr[curfield])) ! 284: mvwaddch(vterm_scr,ROW,COL,chr); ! 285: } ! 286: if (++cursaddr > MAXSCREENSIZE) ! 287: cursaddr = 0; ! 288: } while (cursaddr != endfld); ! 289: /* 6. Null at end of field; mark as modified. */ ! 290: if (do_screen) { ! 291: mvwaddch(vterm_scr,ROW,COL,' '); ! 292: wstandend(vterm_scr); ! 293: } ! 294: scrn_image[cursaddr] = '\0'; ! 295: cursaddr = ocursaddr; ! 296: fldattr[curfield] = fldattr[curfield] | ATTRMDT; ! 297: break; ! 298: ! 299: case DUP: ! 300: if (i = emputchar(grabbed)) ! 301: goto STAT_CHK; ! 302: /* If ok, fall through to TAB */ ! 303: case TAB: ! 304: tabtime: ! 305: if (!unprotected) { /* no unprotected fields */ ! 306: cursaddr = 0; ! 307: break; ! 308: } ! 309: tabloop: ! 310: if (++curfield >= totfields) ! 311: curfield = 0; ! 312: if (prot_attr(fldattr[curfield])) ! 313: goto tabloop; ! 314: cursaddr = fldstart[curfield]; ! 315: ! 316: break; ! 317: case BACKTAB: ! 318: backtabtime: ! 319: if (!unprotected) { ! 320: cursaddr = 0; ! 321: break; ! 322: } ! 323: if (!prot_attr(fldattr[curfield]) && ! 324: cursaddr != fldstart[curfield]) { ! 325: cursaddr = fldstart[curfield]; ! 326: break; ! 327: } ! 328: btabloop: ! 329: if (--curfield < 0) ! 330: curfield = totfields-1; ! 331: if (prot_attr(fldattr[curfield])) ! 332: goto btabloop; ! 333: ! 334: cursaddr = fldstart[curfield]; ! 335: break; ! 336: case ERASE_EOF: /* erase to eofield */ ! 337: if (i = fldcheck()) ! 338: goto STAT_CHK; ! 339: ocursaddr = cursaddr; ! 340: cursaddr = fldstart[curfield]+fldmax[curfield]-1; ! 341: if (cursaddr>=MAXSCREENSIZE) ! 342: cursaddr-=MAXSCREENSIZE; ! 343: do { ! 344: scrn_image[cursaddr] = '\0'; ! 345: if (do_screen && ! 346: (cursaddr != (MAXSCREENSIZE-1))) ! 347: mvwaddch(vterm_scr,ROW,COL,' '); ! 348: if (cursaddr == ocursaddr) break; ! 349: --cursaddr; ! 350: if (cursaddr < 0) ! 351: cursaddr+=MAXSCREENSIZE; ! 352: } ! 353: while(1); ! 354: break; ! 355: case ERASE_INP: /* erase all unprotected input */ ! 356: updstat(status & LOCK_OUT); ! 357: aid_val = ascii?0x2d:0x60; ! 358: lastkey = 0; ! 359: for (cursaddr=0;cursaddr<=MAXSCREENSIZE-1; ++cursaddr) { ! 360: curfield = scrn_xref[cursaddr]; ! 361: if (prot_attr(fldattr[curfield]) || ! 362: scrn_image[cursaddr] == ATTRCODE) ! 363: continue; ! 364: scrn_image[cursaddr] = '\0'; ! 365: if (do_screen) ! 366: mvwaddch(vterm_scr,ROW,COL,' '); ! 367: } ! 368: curfield = totfields; ! 369: goto tabtime; ! 370: break; ! 371: case INS: ! 372: if (LINES <= 24) ! 373: status |= INSERT_MODE; ! 374: else ! 375: updstat(status | INSERT_MODE); ! 376: break; ! 377: case CLEAR: ! 378: for (cursaddr=0; cursaddr<MAXSCREENSIZE; ++cursaddr) ! 379: scrn_image[cursaddr] = '\0'; ! 380: cursaddr = 0; ! 381: fiximage(0); ! 382: if (do_screen) { ! 383: wmove(vterm_scr,0,0); ! 384: /* if # of lines on screen <= 24, do werase; otherwise, ! 385: do clear to end of line for 24 lines to avoid losing ! 386: messages */ ! 387: if (LINES <= 24) { ! 388: werase(vterm_scr); ! 389: clearok(curscr,TRUE); ! 390: } ! 391: else { ! 392: for (i=0; i<24; ++i) { ! 393: wmove(vterm_scr,i,0); ! 394: wclrtoeol(vterm_scr); ! 395: } ! 396: } ! 397: wrefresh(vterm_scr); ! 398: } ! 399: case ENTER: ! 400: case PF1: ! 401: case PF2: ! 402: case PF3: ! 403: case PF4: ! 404: case PF5: ! 405: case PF6: ! 406: case PF7: ! 407: case PF8: ! 408: case PF9: ! 409: case PF10: ! 410: case PF11: ! 411: case PF12: ! 412: case PA1: ! 413: case PA2: ! 414: case PA3: ! 415: btm = 0L; /* init trax/rsp time counters */ ! 416: ctm = 0L; ! 417: atm = times(&rspbuf); ! 418: updstat((status | INPUT_INH) & ~SYS_AVAIL); ! 419: /* figure out what AID value is and set it */ ! 420: aid_val = (ascii?aaid_tbl:eaid_tbl)[grabbed - ENTER]; ! 421: lastkey = grabbed; ! 422: #ifndef DEBUG ! 423: emreadmod(grabbed); ! 424: #endif ! 425: break; ! 426: case ESC: ! 427: /* process keyboard commands: keyboard status reset, ! 428: print instructions, test request, end of session */ ! 429: updstat(status & ~MYJOB); ! 430: if (key_cmds()) return; ! 431: if (LINES > 24) ! 432: updstat(status | MYJOB); ! 433: else ! 434: status |= MYJOB; ! 435: break; ! 436: case RESET: ! 437: updstat(status & ~LOCK_OUT & ~ INSERT_MODE); ! 438: aid_val = ascii?0x2d:0x60; ! 439: lastkey = 0; ! 440: if (do_screen && (LINES <= 24)) { ! 441: touchwin(sub_vterm); ! 442: wrefresh(sub_vterm); ! 443: } ! 444: break; ! 445: case STATS: ! 446: if (!do_screen) ! 447: break; ! 448: emstats(0); ! 449: mvwaddstr(cmd_scr,0,67,"Press Return"); ! 450: wrefresh(cmd_scr); ! 451: while ((grabbed=emgetchar()) == NOCHAR) ; ! 452: wclear(cmd_scr); ! 453: wrefresh(cmd_scr); ! 454: if (LINES <= 24) { ! 455: touchwin(sub_vterm); ! 456: wrefresh(sub_vterm); ! 457: } ! 458: break; ! 459: case PRINT: /* print currently-displayed screen */ ! 460: if (pr_ok) emprint(0); /* print, inserting newlines ! 461: every 80 characters if none ! 462: found before then */ ! 463: break; ! 464: case HELP: /* display keyboard map */ ! 465: if (!do_screen) ! 466: break; ! 467: em_help(); ! 468: break; ! 469: default: ! 470: usual: if (i = emputchar(grabbed)) { /* error encountered */ ! 471: STAT_CHK: ! 472: switch (i) { ! 473: case NORMAL: ! 474: break; ! 475: case NUMERIC: updstat(status | NUM_ONLY); ! 476: break; ! 477: case ATTR_CHAR: ! 478: case PROTECTED: updstat(status | GO_ELSE); ! 479: break; ! 480: case FLD_FULL: updstat(status | MORE_THAN); ! 481: break; ! 482: default: ! 483: break; ! 484: } ! 485: goto lupe; ! 486: } else { ! 487: if (++cursaddr >= MAXSCREENSIZE) ! 488: cursaddr = 0; ! 489: curfield = scrn_xref[cursaddr]; ! 490: if (scrn_image[cursaddr] == (char)ATTRCODE && ! 491: !(status & INSERT_MODE)) { ! 492: if (skip_attr(fldattr[curfield])) ! 493: goto tabtime; ! 494: if (++cursaddr >= MAXSCREENSIZE) ! 495: cursaddr = 0; ! 496: } ! 497: } ! 498: }; ! 499: /* decide what field you're on by checking cursaddr with scrn_xref */ ! 500: lupe: ! 501: curfield = scrn_xref[cursaddr]; ! 502: if (do_screen) { ! 503: if (LINES > 24 || (status & LOCK_OUT)) ! 504: updstat (status); ! 505: wmove(vterm_scr,ROW,COL); ! 506: wrefresh(vterm_scr); ! 507: } ! 508: } ! 509: } ! 510: ! 511: /* process keyboard commands: reset keyboard status, test request, print ! 512: instruction, end of session */ ! 513: extern char ptype; ! 514: extern char pr_dest[]; ! 515: #ifdef v7 ! 516: extern struct tchars termtchar, origtchar; ! 517: extern struct sgttyb termio, origtio; ! 518: #endif ! 519: #ifndef v7 ! 520: extern struct termio origtio, termio; ! 521: #endif ! 522: extern char *termtype; ! 523: char cmd[100]; ! 524: ! 525: key_cmds() ! 526: { ! 527: char *emgetstr(); /* get a command string */ ! 528: register int i; /* index */ ! 529: ! 530: while (1) { ! 531: /* get and set terminal modes */ ! 532: wstandout(cmd_scr); ! 533: wmove(cmd_scr,0,0); ! 534: werase(cmd_scr); ! 535: mvwaddstr(cmd_scr,0,0,"Command: "); ! 536: touchwin(cmd_scr); ! 537: wrefresh(cmd_scr); ! 538: ! 539: emgetstr(cmd); ! 540: ! 541: switch(cmd[0]) { ! 542: case 'h': /* help -- display keyboard map again */ ! 543: em_help(); ! 544: break; ! 545: case '!': /* execute one shell command */ ! 546: #ifdef v7 ! 547: ioctl(0,TIOCSETC,&origtchar); ! 548: ioctl(0, TIOCSETP, &origtio); ! 549: #else ! 550: ioctl(0,TCSETA,&origtio); ! 551: #endif ! 552: /* write standout sequence to terminal */ ! 553: puts(SO); ! 554: system(&cmd[1]); ! 555: write (1,"\nPress Return to Continue:",26); ! 556: read(0, cmd, sizeof cmd); ! 557: puts(SE); ! 558: #ifdef v7 ! 559: ioctl(0,TIOCSETC,&termtchar); ! 560: ioctl(0, TIOCSETP, &termio); ! 561: #else ! 562: ioctl(0,TCSETA,&termio); ! 563: #endif ! 564: clearok(curscr,TRUE); ! 565: touchwin(vterm_scr); ! 566: wrefresh(vterm_scr); ! 567: break; ! 568: ! 569: case 'p': /* invoke print modes */ ! 570: switch(cmd[1]) { ! 571: case 'd': /* ignore print commands */ ! 572: pr_ok = 0; ! 573: break; ! 574: case 'p': /* save print destination name */ ! 575: case 'f': ! 576: ptype = (cmd[1]=='p')?'p':'f'; ! 577: strcpy(pr_dest,&cmd[2]); ! 578: break; ! 579: case '\0': ! 580: case 'r': /* copy screen to printer */ ! 581: if (pr_ok) ! 582: emprint(0); /* insert nl every 80 chars */ ! 583: break; ! 584: default: ! 585: mvwaddstr(cmd_scr,0,30, ! 586: "Valid print commands: p,pd,pf,pp,pr"); ! 587: break; ! 588: }; ! 589: mvwaddstr(cmd_scr,0,67,"Press Return"); ! 590: wrefresh(cmd_scr); ! 591: while ((cmd[0] = emgetchar()) == NOCHAR) ; ! 592: break; ! 593: case 'r': /* reset status (clear input inhibit) */ ! 594: updstat(status & ~LOCK_OUT & ~INSERT_MODE); ! 595: aid_val = ascii?0x2d:0x60; ! 596: lastkey = 0; ! 597: break; ! 598: case 'e': /* send msg: dev. not available then quit */ ! 599: emstats(1); ! 600: dev_navail(); ! 601: return(1); ! 602: case 'q': /* get session statistics and quit */ ! 603: emstats(1); ! 604: return(1); ! 605: ! 606: case 's': /* statistics */ ! 607: emstats(0); ! 608: ! 609: mvwaddstr(cmd_scr,0,67,"Press Return"); ! 610: wrefresh(cmd_scr); ! 611: while ((cmd[0] = emgetchar()) == NOCHAR) ; ! 612: break; ! 613: ! 614: case 't': ! 615: btm = 0L; ! 616: ctm = 0L; ! 617: atm = times(&rspbuf); ! 618: updstat(status | INPUT_INH); ! 619: emreadmod(TESTREQ); /* test request key */ ! 620: aid_val = ascii?0x30:0xf0; /* reset aid value */ ! 621: lastkey = TESTREQ; /*** changed from 0 ttl ***/ ! 622: btm = times(&rspbuf); ! 623: lrsp_tm = btm - atm; ! 624: rsp_tm += lrsp_tm; ! 625: ++rsp_ctr; ! 626: ! 627: mvwaddstr(cmd_scr,0,67,"Press Return"); ! 628: wrefresh(cmd_scr); ! 629: while ((cmd[0] = emgetchar()) == NOCHAR) ; ! 630: break; ! 631: ! 632: case '\0': /* no more cmds if getstr got a null -- return */ ! 633: wstandout(cmd_scr); ! 634: wmove(cmd_scr,0,0); ! 635: wclrtoeol(cmd_scr); ! 636: wrefresh(cmd_scr); ! 637: if (LINES <= 24) { ! 638: touchwin(sub_vterm); ! 639: wrefresh(sub_vterm); ! 640: } else { ! 641: updstat(status); ! 642: } ! 643: return(0); ! 644: default: ! 645: mvwaddstr(cmd_scr,0,40,"Unrecognized command"); ! 646: mvwaddstr(cmd_scr,0,67,"Press Return"); ! 647: wrefresh(cmd_scr); ! 648: while ((cmd[0] = emgetchar()) == NOCHAR) ; ! 649: }; ! 650: } ! 651: } ! 652: /* termreset() - reset terminal status */ ! 653: termreset() ! 654: { ! 655: char tbuf[10]; /* catch extra char thrown out by break here */ ! 656: ! 657: signal(SIGINT,termreset); /* re-arm signal */ ! 658: read(0,tbuf,1); ! 659: ! 660: updstat((status | SYS_AVAIL) & ~LOCK_OUT & ~INSERT_MODE); ! 661: if (LINES <= 24) { ! 662: touchwin(vterm_scr); ! 663: wrefresh(vterm_scr); ! 664: } ! 665: } ! 666: ! 667: /* fldcheck -- checks whether current field is protected, or current cursaddr ! 668: is an attribute character. Returns 1 if either case is true. */ ! 669: fldcheck() ! 670: { ! 671: if (scrn_image[cursaddr] == (char)ATTRCODE) ! 672: return ATTR_CHAR; ! 673: if (prot_attr(fldattr[curfield])) ! 674: return PROTECTED; ! 675: return 0; ! 676: }
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