Return to apilib.c CVS log

Up to [CSRG BSD Unix] / 43BSDReno / usr.bin / tn3270 / api

Annotation of 43BSDReno/usr.bin/tn3270/api/apilib.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef lint
        !            19: static char sccsid[] = "@(#)apilib.c   4.1 (Berkeley) 12/4/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: #include "../ctlr/api.h"
        !            23: 
        !            24: #include "apilib.h"
        !            25: 
        !            26: int
        !            27:     api_sup_errno = 0,                 /* Supervisor error number */
        !            28:     api_sup_fcn_id = 0,                        /* Supervisor function id (0x12) */
        !            29:     api_fcn_errno = 0,                 /* Function error number */
        !            30:     api_fcn_fcn_id = 0;                        /* Function ID (0x6b, etc.) */
        !            31: 
        !            32: static int
        !            33:     gate_sessmgr = 0,
        !            34:     gate_keyboard = 0,
        !            35:     gate_copy = 0,
        !            36:     gate_oiam = 0;
        !            37: 
        !            38: /*
        !            39:  * Issue an API request, with reg structures supplied by the caller.
        !            40:  *
        !            41:  * Only certain routines need this (supervisor services come to mind).
        !            42:  */
        !            43: 
        !            44: static int
        !            45: api_issue_regs(ah, al, bh, bl, cx, dx, parms, length, regs, sregs)
        !            46: int            ah, al, bh, bl, cx, dx;
        !            47: char           *parms;
        !            48: int            length;
        !            49: union REGS     *regs;
        !            50: struct SREGS   *sregs;
        !            51: {
        !            52:     char far *ourseg = parms;
        !            53: 
        !            54:     regs->h.ah = ah;
        !            55:     regs->h.al = al;
        !            56:     regs->h.bh = bh;
        !            57:     regs->h.bl = bl;
        !            58:     regs->x.cx = cx;
        !            59:     regs->x.dx = dx;
        !            60:     sregs->es = FP_SEG(ourseg);
        !            61:     regs->x.di = FP_OFF(ourseg);
        !            62: 
        !            63: #if    defined(MSDOS)
        !            64:     int86x(API_INTERRUPT_NUMBER, regs, regs, sregs);
        !            65: #endif /* defined(MSDOS) */
        !            66: #if    defined(unix)
        !            67:     api_exch_api(regs, sregs, parms, length);
        !            68: #endif /* defined(unix) */
        !            69: 
        !            70:     if (regs->h.cl != 0) {
        !            71:        api_sup_errno = regs->h.cl;
        !            72:        return -1;
        !            73:     } else {
        !            74:        return 0;
        !            75:     }
        !            76: }
        !            77: 
        !            78: 
        !            79: /*
        !            80:  * Issue an API request without requiring caller to supply
        !            81:  * registers.  Most routines use this.
        !            82:  */
        !            83: 
        !            84: static int
        !            85: api_issue(ah, al, bh, bl, cx, dx, parms, length)
        !            86: int
        !            87:     ah,
        !            88:     al,
        !            89:     bh,
        !            90:     bl,
        !            91:     cx,
        !            92:     dx;
        !            93: char *parms;
        !            94: int length;                            /* Length of parms */
        !            95: {
        !            96:     union REGS regs;
        !            97:     struct SREGS sregs;
        !            98: 
        !            99:     return api_issue_regs(ah, al, bh, bl, cx, dx, parms, length, &regs, &sregs);
        !           100: }
        !           101: 
        !           102: /*
        !           103:  * Supervisor Services
        !           104:  */
        !           105: 
        !           106: int
        !           107: api_name_resolve(name)
        !           108: char *name;
        !           109: {
        !           110:     NameResolveParms parms;
        !           111:     int i;
        !           112:     union REGS regs;
        !           113:     struct SREGS sregs;
        !           114: 
        !           115:     for (i = 0; i < sizeof parms.gate_name; i++) {
        !           116:        if (*name) {
        !           117:            parms.gate_name[i] = *name++;
        !           118:        } else {
        !           119:            parms.gate_name[i] = ' ';
        !           120:        }
        !           121:     }
        !           122: 
        !           123:     if (api_issue_regs(NAME_RESOLUTION, 0, 0, 0, 0, 0, (char *) &parms,
        !           124:                            sizeof parms, &regs, &sregs) == -1) {
        !           125:        return -1;
        !           126:     } else {
        !           127:        return regs.x.dx;
        !           128:     }
        !           129: }
        !           130: 
        !           131: #if    defined(unix)
        !           132: /*
        !           133:  * Block until the oia or ps is modified.
        !           134:  */
        !           135: 
        !           136: int
        !           137: api_ps_or_oia_modified()
        !           138: {
        !           139:     union REGS regs;
        !           140:     struct SREGS sregs;
        !           141: 
        !           142:     if (api_issue_regs(PS_OR_OIA_MODIFIED, 0, 0, 0, 0, 0, (char *) 0,
        !           143:                                0, &regs, &sregs) == -1) {
        !           144:        return -1;
        !           145:     } else {
        !           146:        return 0;
        !           147:     }
        !           148: }
        !           149: #endif /* defined(unix) */
        !           150: 
        !           151: /*
        !           152:  * Session Information Services
        !           153:  */
        !           154: 
        !           155: api_query_session_id(parms)
        !           156: QuerySessionIdParms *parms;
        !           157: {
        !           158:     if (api_issue(0x09, QUERY_SESSION_ID, 0x80, 0x20, 0,
        !           159:                                        gate_sessmgr, (char *)parms, sizeof *parms) == -1) {
        !           160:        api_fcn_errno = 0;
        !           161:        api_fcn_fcn_id = 0;
        !           162:        return -1;
        !           163:     } else if (parms->rc == 0) {
        !           164:        return 0;
        !           165:     } else {
        !           166:        api_fcn_errno = parms->rc;
        !           167:        api_fcn_fcn_id = parms->function_id;
        !           168:        return -1;
        !           169:     }
        !           170: }
        !           171: 
        !           172: 
        !           173: api_query_session_parameters(parms)
        !           174: QuerySessionParametersParms *parms;
        !           175: {
        !           176:     if (api_issue(0x09, QUERY_SESSION_PARAMETERS, 0x80, 0x20, 0,
        !           177:                            gate_sessmgr, (char *)parms, sizeof *parms) == -1) {
        !           178:        api_fcn_errno = 0;
        !           179:        api_fcn_fcn_id = 0;
        !           180:        return -1;
        !           181:     } else if (parms->rc == 0) {
        !           182:        return 0;
        !           183:     } else {
        !           184:        api_fcn_errno = parms->rc;
        !           185:        api_fcn_fcn_id = parms->function_id;
        !           186:        return -1;
        !           187:     }
        !           188: }
        !           189: 
        !           190: api_query_session_cursor(parms)
        !           191: QuerySessionCursorParms *parms;
        !           192: {
        !           193:     if (api_issue(0x09, QUERY_SESSION_CURSOR, 0x80, 0x20, 0xff,
        !           194:                        gate_sessmgr, (char *)parms, sizeof *parms) == -1) {
        !           195:        api_fcn_errno = 0;
        !           196:        api_fcn_fcn_id = 0;
        !           197:        return -1;
        !           198:     } else if (parms->rc == 0) {
        !           199:        return 0;
        !           200:     } else {
        !           201:        api_fcn_errno = parms->rc;
        !           202:        api_fcn_fcn_id = parms->function_id;
        !           203:        return -1;
        !           204:     }
        !           205: }
        !           206: 
        !           207: /*
        !           208:  * Keyboard Services
        !           209:  */
        !           210: 
        !           211: api_connect_to_keyboard(parms)
        !           212: ConnectToKeyboardParms *parms;
        !           213: {
        !           214:     if (api_issue(0x09, CONNECT_TO_KEYBOARD, 0x80, 0x20, 0,
        !           215:                        gate_keyboard, (char *)parms, sizeof *parms) == -1) {
        !           216:        api_fcn_errno = 0;
        !           217:        api_fcn_fcn_id = 0;
        !           218:        return -1;
        !           219:     } else if (parms->rc == 0) {
        !           220:        return 0;
        !           221:     } else {
        !           222:        api_fcn_errno = parms->rc;
        !           223:        api_fcn_fcn_id = parms->function_id;
        !           224:        return -1;
        !           225:     }
        !           226: }
        !           227: 
        !           228: 
        !           229: api_disconnect_from_keyboard(parms)
        !           230: DisconnectFromKeyboardParms *parms;
        !           231: {
        !           232:     if (api_issue(0x09, DISCONNECT_FROM_KEYBOARD, 0x80, 0x20, 0,
        !           233:                        gate_keyboard, (char *)parms, sizeof *parms) == -1) {
        !           234:        api_fcn_errno = 0;
        !           235:        api_fcn_fcn_id = 0;
        !           236:        return -1;
        !           237:     } else if (parms->rc == 0) {
        !           238:        return 0;
        !           239:     } else {
        !           240:        api_fcn_errno = parms->rc;
        !           241:        api_fcn_fcn_id = parms->function_id;
        !           242:        return -1;
        !           243:     }
        !           244: }
        !           245: 
        !           246: 
        !           247: api_write_keystroke(parms)
        !           248: WriteKeystrokeParms *parms;
        !           249: {
        !           250:     if (api_issue(0x09, WRITE_KEYSTROKE, 0x80, 0x20, 0,
        !           251:                        gate_keyboard, (char *)parms, sizeof *parms) == -1) {
        !           252:        api_fcn_errno = 0;
        !           253:        api_fcn_fcn_id = 0;
        !           254:        return -1;
        !           255:     } else if (parms->rc == 0) {
        !           256:        return 0;
        !           257:     } else {
        !           258:        api_fcn_errno = parms->rc;
        !           259:        api_fcn_fcn_id = parms->function_id;
        !           260:        return -1;
        !           261:     }
        !           262: }
        !           263: 
        !           264: 
        !           265: api_disable_input(parms)
        !           266: DisableInputParms *parms;
        !           267: {
        !           268:     if (api_issue(0x09, DISABLE_INPUT, 0x80, 0x20, 0,
        !           269:                        gate_keyboard, (char *)parms, sizeof *parms) == -1) {
        !           270:        api_fcn_errno = 0;
        !           271:        api_fcn_fcn_id = 0;
        !           272:        return -1;
        !           273:     } else if (parms->rc == 0) {
        !           274:        return 0;
        !           275:     } else {
        !           276:        api_fcn_errno = parms->rc;
        !           277:        api_fcn_fcn_id = parms->function_id;
        !           278:        return -1;
        !           279:     }
        !           280: }
        !           281: 
        !           282: api_enable_input(parms)
        !           283: EnableInputParms *parms;
        !           284: {
        !           285:     if (api_issue(0x09, ENABLE_INPUT, 0x80, 0x20, 0,
        !           286:                        gate_keyboard, (char *)parms, sizeof *parms) == -1) {
        !           287:        api_fcn_errno = 0;
        !           288:        api_fcn_fcn_id = 0;
        !           289:        return -1;
        !           290:     } else if (parms->rc == 0) {
        !           291:        return 0;
        !           292:     } else {
        !           293:        api_fcn_errno = parms->rc;
        !           294:        api_fcn_fcn_id = parms->function_id;
        !           295:        return -1;
        !           296:     }
        !           297: }
        !           298: 
        !           299: /*
        !           300:  * Copy Services
        !           301:  */
        !           302: 
        !           303: api_copy_string(parms)
        !           304: CopyStringParms *parms;
        !           305: {
        !           306:     if (api_issue(0x09, COPY_STRING, 0x80, 0x20, 0xff,
        !           307:                            gate_copy, (char *)parms, sizeof *parms) == -1) {
        !           308:        api_fcn_errno = 0;
        !           309:        api_fcn_fcn_id = 0;
        !           310:        return -1;
        !           311:     } else if (parms->rc == 0) {
        !           312:        return 0;
        !           313:     } else {
        !           314:        api_fcn_errno = parms->rc;
        !           315:        api_fcn_fcn_id = parms->function_id;
        !           316:        return -1;
        !           317:     }
        !           318: }
        !           319: 
        !           320: /*
        !           321:  * Operator Information Area Services
        !           322:  */
        !           323: 
        !           324: api_read_oia_group(parms)
        !           325: ReadOiaGroupParms *parms;
        !           326: {
        !           327:     if (api_issue(0x09, READ_OIA_GROUP, 0x80, 0x20, 0xff,
        !           328:                            gate_oiam, (char *)parms, sizeof *parms) == -1) {
        !           329:        api_fcn_errno = 0;
        !           330:        api_fcn_fcn_id = 0;
        !           331:        return -1;
        !           332:     } else if (parms->rc == 0) {
        !           333:        return 0;
        !           334:     } else {
        !           335:        api_fcn_errno = parms->rc;
        !           336:        api_fcn_fcn_id = parms->function_id;
        !           337:        return -1;
        !           338:     }
        !           339: }
        !           340: 
        !           341: /*
        !           342:  * The "we are done" routine.  This gets called last.
        !           343:  */
        !           344: 
        !           345: api_finish()
        !           346: {
        !           347: #if    defined(unix)
        !           348:     if (api_close_api() == -1) {
        !           349:        return -1;
        !           350:     } else {
        !           351:        return 0;
        !           352:     }
        !           353: #endif /* defined(unix) */
        !           354: }
        !           355: 
        !           356: 
        !           357: /*
        !           358:  * The initialization routine.  Be sure to call this first.
        !           359:  */
        !           360: 
        !           361: api_init()
        !           362: {
        !           363: #if    defined(MSDOS)
        !           364:     union REGS regs;
        !           365:     struct SREGS sregs;
        !           366: 
        !           367:     regs.h.ah = 0x35;
        !           368:     regs.h.al = API_INTERRUPT_NUMBER;
        !           369:     intdosx(&regs, &regs, &sregs);
        !           370: 
        !           371:     if ((regs.x.bx == 0) && (sregs.es == 0)) {
        !           372:        return 0;               /* Interrupt not being handled */
        !           373:     }
        !           374: #endif /* defined(MSDOS) */
        !           375: #if    defined(unix)
        !           376:     if (api_open_api((char *)0) == -1) {
        !           377:        return 0;
        !           378:     }
        !           379: #endif /* defined(unix) */
        !           380: 
        !           381:     gate_sessmgr = api_name_resolve("SESSMGR");
        !           382:     gate_keyboard = api_name_resolve("KEYBOARD");
        !           383:     gate_copy = api_name_resolve("COPY");
        !           384:     gate_oiam = api_name_resolve("OIAM");
        !           385: 
        !           386:     if ((gate_sessmgr == gate_keyboard) ||
        !           387:        (gate_sessmgr == gate_copy) ||
        !           388:        (gate_sessmgr == gate_oiam) ||
        !           389:        (gate_keyboard == gate_copy) ||
        !           390:        (gate_keyboard == gate_oiam) ||
        !           391:        (gate_copy == gate_oiam)) {
        !           392:            return 0;           /* Interrupt doesn't seem correct */
        !           393:     }
        !           394:     return 1;
        !           395: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.