1: /*
2: * $Id: frmgbl.c,v 1.5 2025/03/09 19:14:25 snw Exp $
3: * freem global C variables
4: *
5: *
6: * Author: Serena Willis <snw@coherent-logic.com>
7: * Copyright (C) 1998 MUG Deutschland
8: * Copyright (C) 2020, 2025 Coherent Logic Development LLC
9: *
10: *
11: * This file is part of FreeM.
12: *
13: * FreeM is free software: you can redistribute it and/or modify
14: * it under the terms of the GNU Affero Public License as published by
15: * the Free Software Foundation, either version 3 of the License, or
16: * (at your option) any later version.
17: *
18: * FreeM is distributed in the hope that it will be useful,
19: * but WITHOUT ANY WARRANTY; without even the implied warranty of
20: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21: * GNU Affero Public License for more details.
22: *
23: * You should have received a copy of the GNU Affero Public License
24: * along with FreeM. If not, see <https://www.gnu.org/licenses/>.
25: *
26: * $Log: frmgbl.c,v $
27: * Revision 1.5 2025/03/09 19:14:25 snw
28: * First phase of REUSE compliance and header reformat
29: *
30: *
31: * SPDX-FileCopyrightText: (C) 2025 Coherent Logic Development LLC
32: * SPDX-License-Identifier: AGPL-3.0-or-later
33: **/
34:
35: /* needed if byte data are to be interpreted as unsigned integer */
36: #include <stdlib.h>
37: #include <setjmp.h>
38: #include <signal.h>
39: #include <stdio.h>
40: #include "mpsdef0.h"
41: #include <fcntl.h>
42: #include <unistd.h>
43: #include <string.h>
44: #include <sys/types.h>
45: #include <sys/wait.h>
46: #include "transact.h"
47: #include "locktab.h"
48: #include <errno.h>
49:
50: #ifdef LIBFREEM
51: # include "errmsg.h"
52: #endif
53:
54: #define UNSIGN(A) ((A)&0377)
55:
56: #define g_EOL 30
57: #define POINT 28
58: #define MINUS 26
59:
60: #define ROOT 0L
61: /* length of blocks. status bytes defined as offset to blocklength */
62: #define DATALIM (BLOCKLEN-11)
63: #define LLPTR (BLOCKLEN-10)
64: #define NRBLK LLPTR
65: #define RLPTR (BLOCKLEN- 6)
66: #define FREE RLPTR
67: #define BTYP (BLOCKLEN- 3)
68: #define OFFS (BLOCKLEN- 2)
69:
70: #define EMPTY 0
71: #define FBLK 1
72: #define POINTER 2
73: #define BOTTOM 6
74: #define DATA 8
75:
76: #define PROTECT 30
77:
78:
79: #ifndef SYSFIVE
80: #define FreeM_timezone -3600
81: #else
82:
83: #ifdef __CYGWIN__
84: #define FreeM_timezone _timezone
85: #else
86: long FreeM_timezone;
87: #endif /* __CYGWIN__ */
88:
89: #endif /* SYSFIVE */
90:
91: #if defined(__CYGWIN__)
92: # define FreeM_timezone _timezone
93: #endif
94:
95: /* mumps commands */
96: #define BREAK 'b'
97: #define CLOSE 'c'
98: #define DO 'd'
99: #define DO_BLOCK 2
100: #define ELSE 'e'
101: #define FOR 'f'
102: #define GOTO 'g'
103: #define HA 'h'
104: #define HALT '0'
105: #define HANG '1'
106: #define IF 'i'
107: #define JOB 'j'
108: #define KILL 'k'
109: #define LOCK 'l'
110: #define NEW 'n'
111: #define OPEN 'o'
112: #define QUIT 'q'
113: #define READ 'r'
114: #define SET 's'
115: #define USE 'u'
116: #define VIEW 'v'
117: #define WRITE 'w'
118: #define XECUTE 'x'
119:
120: #define ZALLOCATE 'A'
121: #define ZBREAK 'B'
122: #define ZDEALLOCATE 'D'
123: #define ZGO 'G'
124: #define ZHALT 'H'
125: #define ZINSERT 'I'
126: #define ZJOB 'J'
127: #define ZLOAD 'L'
128: #define ZNEW 'N'
129: #define ZPRINT 'P'
130: #define ZQUIT 'Q'
131: #define ZREMOVE 'R'
132: #define ZSAVE 'S'
133: #define ZTRAP 'T'
134: #define ZWRITE 'W'
135: #define PRIVATE SP
136:
137: #if defined(HAVE_MWAPI_MOTIF)
138: # include <Xm/Xm.h>
139: XtAppContext mwapi_context;
140: #endif
141:
142: short run_daemon = FALSE;
143: short nofork = FALSE;
144: char *pid_file_path;
145: int pid_fd;
146:
147: /* USING and WITH */
148: char i_using[STRLEN] = {'\201'};
149: char i_with[STRLEN] = {'\201'};
150:
151: /* common definitions for all mumps modules */
152: /* same as external definition in include_file mpsdef */
153:
154: extern int errno; /* external error code for systemcalls */
155:
156: int m_argc; /* arguments count */
157: char **m_argv; /* arguments string */
158: char **m_envp; /* environment pointer */
159:
160: short frm_throw_all_errors = 1;
161:
162: /* glvn size parameters */
163: union four_fl {
164: long unsigned all;
165: char one[4];
166: } glvnflag; /* [0] unique name chars 0=no limit */
167:
168: /* [1] case sensitivity flag 0=sensitive */
169: /* [2] max. name+subscripts 0=no limit */
170: /* [3] max. length of a subscript 0=no limit */
171: int libflag = FALSE; /* running as library? */
172: int lonelyflag = FALSE; /* single user flag */
173: int lowerflag = TRUE; /* lowercase everywhere flag */
174: int killerflag = TRUE; /* SIGTERM handling flag */
175: int huperflag = TRUE; /* SIGHUP handling flag */
176: int s_fun_flag = TRUE; /* VIEW 70: ZSORT/ZSYNTAX flag */
177: int n_fun_flag = TRUE; /* VIEW 71: ZNEXT/ZNAME flag */
178: int p_fun_flag = TRUE; /* VIEW 72: ZPREVIOUS/ZPIECE flag */
179: int d_fun_flag = TRUE; /* VIEW 73: ZDATA/ZDATE flag */
180: int zjobflag = TRUE; /* VIEW 79: old ZJOB vs. new ZJOB flag */
181: int eightbit = TRUE; /* VIEW 80: 7 vs. 8 bit flag */
182: int PF1flag = FALSE; /* VIEW 81: PF1 flag */
183: int ordercounter = 0; /* VIEW 82: order counter */
184: int etxtflag = FALSE; /* VIEW 83: text in $ZE flag */
185: char lvndefault[256] = "\201"; /* VIEW 89: UNDEF lvn default */
186: char gvndefault[256] = "\201"; /* VIEW 90: UNDEF gvn default */
187: char exfdefault[256] = "\201"; /* VIEW 91: missing QUIT expr default */
188: int typemmflag = FALSE; /* VIEW 92: EUR2DEM: type mismatch error */
189: int namespace = 0; /* VIEW 200: namespace index */
190: int config = 0; /* VIEW 201: configuration index */
191: char WHR[12][4] = { /* names of currencies */
192: "\201",
193: "EUR\201",
194: "ATS\201",
195: "BFR\201",
196: "DEM\201",
197: "ESP\201",
198: "FMK\201",
199: "FRF\201",
200: "IEP\201",
201: "ITL\201",
202: "NLG\201",
203: "PTE\201"
204: };
205:
206: char EUR2WHR[12][9] = { /* conversion factors EUR to ... */
207: "\201", /* dont care */
208: "1\201", /* to EUR */
209: "13.7603\201", /* to ATS */
210: "40.3399\201", /* to BFR */
211: "1.95583\201", /* to DEM (DM) */
212: "166.386\201", /* to ESP */
213: "5.94573\201", /* to FMK */
214: "6.55957\201", /* to FRF (FF) */
215: ".787564\201", /* to IEP */
216: "1936.27\201", /* to ITL */
217: "2.20371\201", /* to NLG */
218: "200.482\201" /* to PTE */
219: };
220:
221: long v93 = 1; /* VIEW 93: ASCII rule default */
222: char v93a[NO_V93][2560] = {
223: /* ASCII */
224: " :, :!,A:a,B:b,C:c,D:d,E:e,F:f,G:g,H:h,I:i,J:j,K:k,L:l,M:m,N:n,O:o,P:p,Q:q,R:r,S:s,T:t,U:u,V:v,W:w,X:x,Y:y,Z:z\201",
225: /* B - BELGIAN */
226: " :, :!,@:a,\\:c,{:e,}:e,\
227: A:a,B:b,C:c,D:d,E:e,F:f,G:g,H:h,I:i,J:j,K:k,L:l,M:m,N:n,O:o,P:p,Q:q,R:r,S:s,T:t,U:u,V:v,W:w,X:x,Y:y,Z:z\201,\200:e",
228: /* D - GERMAN */
229: " \001\002 \001\002!\001\002\042\001\002#\001\002$\001\002%\001\002&\001\002\
230: '\001\002(\001\002)\001\002*\001\002+\001\002,\001\002-\001\002.\001\002\
231: /\001\002:\001\002;\001\002<\001\002=\001\002>\001\002?\001\002@\001\002\
232: ^\001\002_\001\002`\001\002A\001a\002B\001b\002C\001c\002D\001d\002E\001e\002\
233: F\001f\002G\001g\002H\001h\002I\001i\002J\001j\002K\001k\002L\001l\002\
234: M\001m\002N\001n\002O\001o\002P\001p\002Q\001q\002R\001r\002S\001s\002\
235: T\001t\002U\001u\002V\001v\002W\001w\002X\001x\002Y\001y\002Z\001z\002\
236: {\001ae\002[\001ae\002|\001oe\002\134\001oe\002}\001ue\002]\001ue\002\
237: ~\001ss\002\200\001e\002\201",
238: /* DK - DANISH */
239: " :, :!,{:ae,|:oe,}:au,~:ue,\
240: A:a,B:b,C:c,D:d,E:e,F:f,G:g,H:h,I:i,J:j,K:k,L:l,M:m,N:n,O:o,P:p,Q:q,R:r,S:s,T:t,U:u,V:v,W:w,X:x,Y:y,Z:z,\
241: [:ae,\\:oe,]:ao,^:ue,\200:e\201",
242: /* E - SPANISH */
243: " :, :!,|:n,}:c,ll:l,\
244: A:a,B:b,C:c,D:d,E:e,F:f,G:g,H:h,I:i,J:j,K:k,L:l,M:m,N:n,O:o,P:p,Q:q,R:r,S:s,T:t,U:u,V:v,W:w,X:x,Y:y,Z:z,\200:e,\
245: \\:n,LL:l\201",
246: /* F - FRENCH */
247: " :, :!,\\:c,{:e,|:u,}:e,\
248: A:a,B:b,C:c,D:d,E:e,F:f,G:g,H:h,I:i,J:j,K:k,L:l,M:m,N:n,O:o,P:p,Q:q,R:r,S:s,T:t,U:u,V:v,W:w,X:x,Y:y,Z:z,\200:e,\201",
249: /* I - ITALIAN */
250: " :, :!,\\:c,]:e,`:u,{:a,|:o,}:e,~:i,\
251: A:a,B:b,C:c,D:d,E:e,F:f,G:g,H:h,I:i,J:j,K:k,L:l,M:m,N:n,O:o,P:p,Q:q,R:r,S:s,T:t,U:u,V:v,W:w,X:x,Y:y,Z:z,\200:e,\201",
252: /* S - SWEDISH */
253: " :, :!,`:e,{:ae,|:oe,}:ao,~:ue,\
254: A:a,B:b,C:c,D:d,E:e,F:f,G:g,H:h,I:i,J:j,K:k,L:l,M:m,N:n,O:o,P:p,Q:q,R:r,S:s,T:t,U:u,V:v,W:w,X:x,Y:y,Z:z,\
255: @:e,[:ae,\\:oe,]:ao,~:ue,\200:e,\201"
256: };
257:
258:
259: char glo_prefix[MONTH_LEN] = "^\201"; /* VIEW 96: global prefix */
260: char glo_ext[MONTH_LEN] = "\201"; /* VIEW 97: global postfix */
261: char rou_ext[MONTH_LEN] = ".m\201"; /* VIEW 98: routine extention */
262: long tzoffset = 0L; /* VIEW 99: timer offset */
263: int v100 = 0; /* VIEW 100: return value of kill */
264: char l_o_val[256] = "\201"; /* VIEW 110: local $o/$q data value */
265: char g_o_val[256] = "\201"; /* VIEW 111: global $o/$q data value */
266: int zsavestrategy = TRUE; /* VIEW 133: remember ZLOAD directory on ZSAVE */
267:
268: /* vars for screen save/restore */
269: struct vtstyp *screen = NULL; /* active screen */
270: short jour_flag = 0; /* journal flag 0/1/-1 */
271:
272: /* trace vars for global module */
273: unsigned long traceblk[TRLIM]; /* trace stack - block numbers */
274: short traceadr[TRLIM]; /* - status */
275: short trx; /* - stack pointer */
276: char compactkey[256]; /* internal form of key in global.c */
277:
278: short mcmnd; /* mumps command letter */
279: short arg; /* stack pointer for expr.c */
280: char *argstck[PARDEPTH + 1]; /* stack of pointers to */
281:
282: /* intermediate results */
283:
284: long ordercnt = 0L; /* repeater for $order/$query */
285: short setpiece = FALSE; /* TRUE: set$piece executing */
286: short setop = 0; /* SET op flag */
287: char rou_name[256] =
288: {EOL}; /* $T(+0)/$ZN routine name */
289: char *namstck; /* routine name stack */
290: char *namptr; /* routine name stack pointer */
291: char *framstck; /* DO_frame stack */
292: char *dofrmptr; /* DO_frame stack pointer */
293: char zb[40] = "\201"; /* $ZB last ESC_sequence */
294: char zerror[300] = "\201"; /* $ZE last error */
295: short DSM2err = FALSE; /* enable normal error processing */
296: short nesterr = 0; /* nesterr and callerr contain info */
297: char callerr[NESTLEVLS + 1][40]; /* about call situation at error */
298:
299: char stack0[256] = "\201";
300:
301: char zmc[128] = "\
302: \000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\
303: \020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\177\201";
304:
305: /* $ZMC loadable match 'controls' */
306: char zmn[128] = "0123456789\201"; /* $ZMN loadable match 'numerics' */
307:
308: /* $ZMP loadable match 'punctuation' */
309: char zmp[128] = " !\042#$%&'()*+,-./:;<=>?@^_`\201";
310:
311: /* $ZML loadable match 'lowercase' */
312: char zml[128] = "abcdefghijklmnopqrstuvwxyz{|}~\201";
313:
314: /* $ZMU loadable match 'uppercase' */
315: char zmu[128] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]\201";
316:
317: short zerr = OK; /* $ZE numeric error code */
318: char zloc[256] = "\201"; /* $ZL last local reference */
319: char zref[256] = "\201"; /* $ZR last global reference */
320: short nakoffs = 0; /* offset to naked reference */
321: char zfunkey[44][FUNLEN]; /* $ZF function key */
322:
323: typedef struct frm_devstat {
324: short mdc_err;
325: short frm_err;
326: char err_txt[80];
327: } frm_devstat;
328:
329: frm_devstat devstat[MAXDEV + 1]; /* channel statuses for $DEVICE */
330:
331: short xpos[MAXDEV + 1]; /* $X-vector */
332: short ypos[MAXDEV + 1]; /* $Y-vector */
333: short crlf[MAXDEV + 1]; /* CR/LF flag vector */
334: short fm_nodelay[MAXDEV + 1]; /* nodelay flag vector */
335:
336: int ESCflag[MAXDEV + 1] =
337: {0, 0, 0, 0, 0}; /* ESC flag */
338:
339: short RightMargin = 0; /* Output Margin. Default no */
340:
341: /* automatic CR/LF */
342: short InFieldLen = 255; /* Input Field length Def: 255 char */
343: long DSW = BIT2 + BIT21; /* Device Status word (Terminal) */
344: char LineTerm[32] = "\012\015\201"; /* Input Line Terminator chars */
345: char BrkKey = 3; /* <INTERRUPT> key Def: CTRL/C */
346: char ug_buf[MAXDEV + 1][256]; /* ungetc-buffers */
347: char devopen[MAXDEV + 1] =
348: {0, 0, 0, 0, 0}; /* 0 not open */
349:
350: /* 'r' input */
351: /* 'w' or 'a' output */
352:
353: /* names of IO devices */
354: char dev[MAXDEV + 1][40] = {
355: " ", /* HOME */
356: "/usr/tmp/mout.1/a\201", /* dev 1 */
357: "/usr/tmp/mout.2/a\201", /* dev 2 */
358: "/usr/tmp/mout.3/a\201", /* dev 3 */
359: "/usr/tmp/mout.4/a\201" /* dev 4 */
360: };
361:
362: char G0I[MAXDEV + 1][257]; /* G0 input translation table */
363: char G0O[MAXDEV + 1][257]; /* G0 output translation table */
364: char G1I[MAXDEV + 1][257]; /* G1 input translation table */
365: char G1O[MAXDEV + 1][257]; /* G1 output translation table */
366:
367: FILE *opnfile[MAXDEV + 1];
368: char act_oucpath[MAXDEV + 1][40] = {"\201", "\201", "\201", "\201", "\201"};
369: char sq_modes[MAXDEV + 1];
370:
371: short olddes[NO_GLOBLS]; /* filedescr of open global files */
372: char oldfil[NO_GLOBLS][1024]; /* names of open global files */
373: long g_ages[NO_GLOBLS]; /* last access of global files */
374: short usage[NO_GLOBLS]; /* usage count of global files */
375: short inuse = 0; /* file in use */
376:
377: int lio_mode = -1;
378: short io = HOME; /* $IO */
379: short test = FALSE; /* $TEST */
380: short pattrnflag = FALSE; /* incomplete match flag */
381: char pattrnchar = EOL; /* incomplete match flag supplement */
382: int zsystem = 0; /* $ZSYSTEM return status of UNIX call */
383: short zcc = FALSE; /* $ZC (ControlC-Flag) */
384:
385: char *rouptr; /* pointer to begin of routine */
386: char *roucur; /* cursor into routine */
387: char *rouend; /* pointer to end of pgm */
388: char *rouins; /* pointer for direct mode insert */
389: short breakon = ENABLE; /* BREAK enable/disable-flag */
390: short zbreakon = DISABLE; /* ZBREAK enable/disable-flag */
391: short zbflag = FALSE; /* 'ZBREAK from terminal'-flag */
392: short zprecise = 100; /* $ZPRECISION of arithmetic */
393: char fp_conversion[10]; /* sprintf conversion constant for ieee754 support */
394: long nrandom; /* random number seed */
395: long ran_a = 24298L; /* random number parameter a */
396: long ran_b = 99991L; /* random number parameter b */
397: long ran_c = 199017L; /* random number parameter c */
398:
399: short usermode = 1; /* 0=user mode 1=programmer mode */
400: int restricted_mode = FALSE; /* TRUE=restricted FALSE=unrestricted */
401: short demomode = FALSE; /* 0=no demo 1=demo mode */
402: int d0char = DEL; /* demomode ouput character */
403: int d1char = CAN; /* demomode '!' character */
404: short cset = FALSE; /* 0=mumps set 1='C' set flag */
405:
406: /* startup flags */
407: int hardcopy = DISABLE; /* hardcopy flag */
408: int frm_filter = FALSE; /* filter flag */
409: int noclear = FALSE; /* noclear flag */
410: int standard = D_FREEM; /* default dialect */
411: int quiet_mode = FALSE; /* quiet mode */
412: char config_file[4096]; /* path to configuration file */
413: char shm_env[255]; /* shared memory environment */
414:
415: short fp_mode = 0; /* set to 0 for fixed-point math, 1 for IEEE754 floating point */
416: short en_revstrf = 1; /* enable reverse forms of string intrinsics */
417:
418: short ierr; /* immediate error status */
419: short deferred_ierr; /* deferred error status (after returning from a private routine) */
420: char err_suppl[255]; /* supplemental information about an error */
421:
422: long PSIZE = DEFPSIZE; /* size of 'partition' */
423: char *mbpartition; /* memory-backed globals partition */
424: short writing_mb = FALSE;
425: char *partition; /* partition (symbol table) */
426: long symlen = DEFPSIZE; /* 'lower' bound of symbol table */
427: unsigned long alphptr[128] = /* pointers into symbol table */
428: {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
429: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
430: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
431: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
432: char *apartition; /* alternate partition */
433: long asymlen = DEFPSIZE; /* 'lower' bound of symbol table */
434: unsigned long aalphptr[128] = /* pointers into symbol table */
435: {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
436: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
437: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
438: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
439:
440: short autopsize = TRUE; /* automatic increase of PSIZE */
441: long svnlen = DEFUDFSVSIZ; /* 'lower' bound of udf_svn_tab */
442: long UDFSVSIZ = DEFUDFSVSIZ; /* size of userdef special var tab. */
443: char *svntable; /* udf special variable table */
444: unsigned long svnaptr[128] = /* pointers into udf_svn_tab */
445: {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
446: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
447: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
448: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
449:
450: short autousize = TRUE; /* automatic increase of UDFSVSIZ */
451: long NO_OF_RBUF = DEFNO_OF_RBUF; /* number of routine buffers */
452: long PSIZE0 = DEFPSIZE0; /* size of routine buffers */
453: short autorsize = TRUE; /* automatic increase of PSIZE0 */
454: short aliases = 0; /* aliases pointer */
455: char ali[2000]; /* aliases table */
456: long v22ptr = 0L; /* view 22 aliases pointer */
457: char *v22ali; /* view 22 aliases field */
458: long v22size = 0L; /* current size of aliases field */
459:
460:
461: long NSIZE = DEFNSIZE; /* size of newstack */
462: char *newstack; /* stack for NEWed variables */
463: char *newptr; /* pointer to NEW stack */
464: char *newlimit; /* pointer to NEW stack end */
465:
466: short nstx = 0; /* nest stack: */
467: short nestc[NESTLEVLS + 1]; /* - command (DO...) */
468: char *nestp[NESTLEVLS + 1]; /* - cmdptr */
469: char *nestn[NESTLEVLS + 1]; /* - namptr */
470: long nestr[NESTLEVLS + 1]; /* - roucur */
471: char *nestnew[NESTLEVLS + 1]; /* - newptr */
472: short neste[NESTLEVLS + 1]; /* - was this frame entered as the result of an error? */
473: short nestlt[NESTLEVLS + 1]; /* stack $T / stack levelcount */
474: short brkstk[NESTLEVLS + 1]; /* stack for BREAK information */
475:
476: char ztrap[NESTLEVLS + 2][ZTLEN]; /* $ZTRAP to be xecuted on error */
477:
478:
479: char *s; /* pointer to symlen_offset */
480: char *argptr; /* pointer to beg of tmp-storage */
481:
482: char code[512] =
483: {EOL, EOL}; /* currently interpreted code */
484: char *codptr = code; /* pointer within code[] */
485:
486: char dosave[20]; /* in a FOR range save DO label */
487: char *xdosave;
488:
489: int errfunlvl = 0; /* avoid wrong error message in $$FUN */
490: short repQUIT = 0; /* QUIT repeater */
491:
492: char varnam[256]; /* variable/array/function name */
493: char varerr[256] =
494: {EOL}; /* reference in error message */
495: char *buff; /* routine buffer pool */
496: char pgms[MAXNO_OF_RBUF][40]; /* names of alt.pgms */
497: long ages[MAXNO_OF_RBUF]; /* last call to this pgm */
498: char *ends[MAXNO_OF_RBUF]; /* saved rouend-pointer */
499: char path[MAXNO_OF_RBUF][256]; /* directory where routine was loaded */
500: rtn_flags rbuf_flags[MAXNO_OF_RBUF]; /* per-routine flags */
501:
502: char glopath[PATHLEN]; /* path to access globals */
503: char rou0path[PATHLEN]; /* routine access with DO,GOTO,JOB */
504: char rou1path[PATHLEN]; /* routine access with ZL,ZS */
505: char gloplib[PATHLEN]; /* path to access %globals */
506:
507: char gbl_u_engine[255]; /* user global engine */
508: char gbl_s_engine[255]; /* system global engine */
509: char loc_engine[255]; /* local engine */
510:
511: unsigned long int bdb_flush_threshold;
512:
513: char rou0plib[PATHLEN]; /* %routine path (DO..) */
514: char rou1plib[PATHLEN]; /* %routine path (ZL..) */
515: char oucpath[PATHLEN] = "\201"; /* OPEN/USE/CLOSE path */
516: char zargdefname[PATHLEN]= "%\201"; /* default varname for Z-commands */
517: char jourfile[PATHLEN] = "/usr/tmp/ioprotocol"; /* journal file */
518: FILE *jouraccess; /* dto. filedes */
519: char curdir[256] = "."; /* current directory */
520:
521: char startuprou[PATHLEN] = "\201"; /* start up routine from cmdline*/
522:
523: char zcommds[256] =
524: " za zas zb zd zg zh zi zj zl zn zp zq zr zs zt zwr zallocate zbreak zdeallocate \
525: zgo zhalt zinsert zjob zload znamespace zprint zquit zremove zsave ztrap zwrite \201"; /* intrinsic z-commands */
526: char zfunctions[256] = /* intrinsic z-functions */
527: " zb zc zd ze zh zht zk zl zm zn zo zp zr zs zt zboolean zcall zcr zcrc zdata zdate zedit zhorolog \
528: zkey zlength zlsd zname znext zorder zpiece zprevious zreplace zsyntax zsort ztime \201";
529: char zsvn[256] = /* intrinsic z-special variables */
530: " za zb zc zd ze zf zh zi zj zl zmc zmn zmp zma zml zmu zme zn zo zp zs zt zu zv \
531: zcontrolc zdate zerror zname zhorolog zinrpt zjob zlocal zorder zprecision zsystem ztime ztr ztrap zuuid zut zversion \201";
532: char brkaction[256] = "\201"; /* action in case of BREAK */
533: pid_t father = 0; /* JOB-ID of father process */
534: char jour_hostid[256];
535: /* date types parameters */
536: char month[NO_DATETYPE][12][MONTH_LEN] = {
537: {"01\201", "02\201", "03\201", "04\201", "05\201", "06\201", "07\201", "08\201", "09\201", "10\201", "11\201", "12\201"},
538: {"01\201", "02\201", "03\201", "04\201", "05\201", "06\201", "07\201", "08\201", "09\201", "10\201", "11\201", "12\201"},
539: {"JAN\201", "FEB\201", "MAR\201", "APR\201", "MAY\201", "JUN\201", "JUL\201", "AUG\201", "SEP\201", "OCT\201", "NOV\201", "DEC\201"},
540: {"01\201", "02\201", "03\201", "04\201", "05\201", "06\201", "07\201", "08\201", "09\201", "10\201", "11\201", "12\201"},
541: {"1\201", "2\201", "3\201", "4\201", "5\201", "6\201", "7\201", "8\201", "9\201", "10\201", "11\201", "12\201"},
542: {"1\201", "2\201", "3\201", "4\201", "5\201", "6\201", "7\201", "8\201", "9\201", "10\201", "11\201", "12\201"},
543: {"1\201", "2\201", "3\201", "4\201", "5\201", "6\201", "7\201", "8\201", "9\201", "10\201", "11\201", "12\201"},
544: {"01\201", "02\201", "03\201", "04\201", "05\201", "06\201", "07\201", "08\201", "09\201", "10\201", "11\201", "12\201"}
545: };
546: char dat1char[NO_DATETYPE][MONTH_LEN] = /* date 1st delimiter */
547: {"/\201", "/\201", " \201", "/\201", ".\201", ".\201", ".\201", ".\201"};
548: char dat2char[NO_DATETYPE][MONTH_LEN] = /* date 2nd delimmiter */
549: {"/\201", "/\201", " \201", "/\201", ".\201", ".\201", ".\201", ".\201"};
550: char dat3char[NO_DATETYPE] =
551: {'0', '0', '0', '0', '\201', '\201', '\201', '0'}; /* date day justify char */
552: char dat4flag[NO_DATETYPE] =
553: {2, 1, 0, 0, 0, 0, 0, 0}; /* 0=DMY, 1=MDY, 2=YMD */
554: char dat5flag[NO_DATETYPE] =
555: {0, 1, 1, 1, 1, 1, 0, 1}; /* suppress century digits */
556: long int datGRbeg[NO_DATETYPE] =
557: {578101L, 578101L, 578101L, 578101L, 578101L, 578101L, 578101L, 578101L};
558:
559: /* first day of gregorian calendar 15-OCT-1582 ($H+672411) */
560: int datetype = 0; /* type for $zd special variable */
561:
562: char tim1char[NO_TIMETYPE] =
563: {':', ':'}; /* time 1st delimiter */
564: char tim2char[NO_TIMETYPE] =
565: {':', ':'}; /* time 2nd delimiter */
566: char tim3char[NO_TIMETYPE] =
567: {SP, SP}; /* time hour justify char */
568: char tim4flag[NO_TIMETYPE] =
569: {0, 1}; /* 0=24 Hrs 1=12 Hrs */
570: char tim5flag[NO_TIMETYPE] =
571: {0, 0}; /* suppress seconds */
572: int timetype = 0; /* type for $zt special variable */
573:
574: jmp_buf sjbuf;
575: char *roucu0;
576: char *dofram0;
577:
578: short forx = 0; /* FOR stack pointer */
579: char forvar[NESTLEVLS + 1][40], /* FOR variable */
580: forinc[NESTLEVLS + 1][40], /* FOR increment */
581: forpost[NESTLEVLS + 1][128], /* FOR postconditional */
582: forlim[NESTLEVLS + 1][40]; /* FOR limit value */
583: short fortyp[NESTLEVLS + 1]; /* 0 = forever 1 = single, */
584:
585: /* 2 = unlim.iter,3 = limit iter. */
586: /* 4 = "" +inc=1 5 = "" + inc=1 */
587: short fori[NESTLEVLS + 1]; /* if fortyp=5 length of forlimit */
588:
589: char *fvar; /* current forvar */
590: char *finc; /* current forinc */
591: char *fpost; /* current forpost */
592: char *flim; /* current forlim */
593: short ftyp; /* current fortyp */
594: short fi; /* current fori */
595: short forsw = FALSE; /* FOR switch */
596: short loadsw = TRUE; /* flag to avoid redundant loads */
597: short argless_forsw_quit = FALSE; /* QUIT from argumentless FOR */
598: short sigint_in_for = FALSE;
599: short direct_mode = TRUE; /* are we in direct mode? */
600:
601: short extr_types[NESTLEVLS + 1]; /* return types of extrinsic functions */
602: char destructors[MAX_DESTRUCTORS][50];
603: int destructor_ct;
604: char private_keys[MAX_PRIVATE_KEYS][255];
605:
606: /* after XECUTEs */
607: short promflag = TRUE; /* prompt execute flag */
608: short privflag = FALSE; /* extrinsic z-command flag */
609:
610:
611: char *cmdstack;
612: char *cmdptr;
613:
614: short offset;
615: long frm_timeout;
616: short timeoutms;
617: char tmp4[80] = "\201";
618: short param = 0; /* parameter count */
619: short paramx = 0; /* current parameter */
620: short level = 0; /* level count */
621: pid_t pid; /* $J = process ID */
622:
623: char nsname[256] = "USER\0"; /* namespace name */
624: char nsroot[4096]; /* root path of namespace */
625: char *freem_path; /* path to the running instance of FreeM */
626: char history_file[256]; /* path to the history file */
627: int n_lines;
628: int n_columns;
629:
630: short ipc_pending = 0; /* 1 if an incoming IPC is pending, 0 otherwise */
631:
632: int strict_mode = 0;
633:
634: short first_process = FALSE;
635: size_t shm_init_size = 16777216;
636:
637: short inrpt_after_async = FALSE;
638:
639: //#ifdef USE_SIGACTION
640: // struct sigaction act = {0}; /* signals stuff */
641: //#endif/*USE_SIGACTION*/
642:
643: void unnew (void)
644: {
645: char *xptr;
646: int i;
647: long j;
648: char tmp[256];
649:
650: #ifdef DEBUG_NEWPTR
651: int loop;
652: printf("Un-Newing: ");
653: printf("[nstx] nstx is %d\r\n",nstx);
654: printf("[nestnew] nestnew[nstx] is %d\r\n",nestnew[nstx]);
655: #endif
656:
657:
658: xptr = nestnew[nstx]; /* get position of newpointer */
659:
660: while (xptr < newptr) {
661: i = *--newptr;
662:
663: if (i != kill_all) {
664: j = UNSIGN (*--newptr);
665: newptr -= (j + 1);
666: stcpy0 (varnam, newptr, j + 1);
667:
668: if (i == set_sym) {
669: j = UNSIGN (*--newptr);
670: newptr -= (j + 1);
671: stcpy (tmp, newptr);
672: }
673: else {
674: tmp[0] = EOL;
675: }
676: }
677: else {
678: varnam[0] = EOL;
679: tmp[0] = EOL;
680: }
681:
682: if (varnam[0] == '$') {
683: if (varnam[1] == 't') test = tmp[0]; /* pop $TEST */
684: else if (varnam[1] == 'j') pid = UNSIGN (tmp[0]) * 256 + UNSIGN (tmp[1]); /* pop $job */
685: else if (varnam[1] == 'z' && varnam[2] == 'i') breakon = tmp[0]; /* pop $zinrpt */
686: else if (varnam[1] == 'e' && varnam[2] == 't') { /* pop $etrap */
687: stcpy (etrap, tmp);
688: }
689: else if (varnam[1] == 'e' && varnam[2] == 's') { /* pop $estack */
690: char esbuf[256];
691:
692: stcpy (esbuf, tmp);
693: stcnv_m2c (esbuf);
694:
695: estack = atoi (esbuf);
696: }
697: else { /* pop $reference/$zreference */
698: stcpy (zref, tmp);
699: nakoffs = UNSIGN (varnam[4]);
700: }
701:
702: continue;
703: }
704: symtab (i, varnam, tmp);
705: }
706:
707: newptr = nestnew[nstx];
708: nestnew[nstx] = 0; /* reset pointers */
709:
710: return;
711:
712: } /* end unnew() */
713:
714: void m_fatal(char *s)
715: {
716: int errno_sav;
717: errno_sav = errno;
718:
719: set_io (UNIX);
720:
721:
722: if (tp_level) {
723: fprintf (stderr, "freem [FATAL]: memory allocation failure in %s; rolling back %d transactions [errno %d %s]\n", s, tp_level, errno_sav, strerror (errno_sav));
724: tp_trollback (tp_level);
725: }
726: else {
727: fprintf (stderr, "freem [FATAL]: memory allocation failure in %s [errno %d %s]\n", s, errno_sav, strerror (errno_sav));
728: }
729:
730: exit (3);
731: }
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