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