-
Notifications
You must be signed in to change notification settings - Fork 10
/
cmdtab.c
879 lines (787 loc) · 33.3 KB
/
cmdtab.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
/* CMDTAB.C (c) Copyright Roger Bowler, 1999-2012 */
/* (c) Copyright "Fish" (David B. Trout), 2002-2012 */
/* (c) Copyright Jan Jaeger, 2003-2012 */
/* (c) Copyright TurboHercules, SAS 2010-2011 */
/* Route all Hercules configuration statements */
/* and panel commands to the appropriate functions */
/* */
/* Released under "The Q Public License Version 1" */
/* (http://www.hercules-390.org/herclic.html) as modifications to */
/* Hercules. */
#include "hstdinc.h"
#define _CMDTAB_C_
#define _HENGINE_DLL_
#include "hercules.h"
#include "history.h"
/*-------------------------------------------------------------------*/
/* Prototype of a command processing function */
/*-------------------------------------------------------------------*/
#define CMDFUNC_ARGS_PROTO int argc, char *argv[], char *cmdline
#define CMDFUNC_ARGS argc, argv, cmdline
typedef int CMDFUNC( CMDFUNC_ARGS_PROTO );
/*-------------------------------------------------------------------*/
/* Handle externally defined commands. If a command's primary */
/* processing function is defined in some other module other than */
/* this one, the below EXTCMD macro will route our module to it. */
/* This macro must be #defined before "cmdtab.h" is #included. */
/*-------------------------------------------------------------------*/
#define EXTCMD( _cmd ) call_ ## _cmd
#define CALL_EXTCMD( _cmd ) \
\
int call_ ## _cmd ( CMDFUNC_ARGS_PROTO ) { \
return _cmd ( CMDFUNC_ARGS ); }
/*-------------------------------------------------------------------*/
/* Layout of CMDTAB Command Routing Table */
/*-------------------------------------------------------------------*/
struct CMDTAB
{
const char *statement; /* Command or statement */
const char *shortdesc; /* Short description */
const char *longdesc; /* Long description */
CMDFUNC *function; /* Handler function */
const size_t mincmdlen; /* Minimum abbreviation */
BYTE type; /* Command type (see below) */
};
typedef struct CMDTAB CMDTAB;
/*-------------------------------------------------------------------*/
/* Command types */
/*-------------------------------------------------------------------*/
#define DISABLED 0x00 /* Disabled command */
#define SYSOPER 0x01 /* System Operator */
#define SYSMAINT 0x02 /* System Maintainer */
#define SYSPROG 0x04 /* Systems Programmer */
#define SYSNONE 0x08 /* Valid with no group */
#define SYSCONFIG 0x10 /* System Configuration */
#define SYSDEVEL 0x20 /* System Developer */
#define SYSDEBUG 0x40 /* Enable Debugging */
#define SYSNDIAG8 0x80 /* Invalid for DIAG008 */
#define SYSALL 0x7F /* Enable for any lvls */
/* Combinations as a one-word mnemonic */
#define SYSCMD (SYSOPER | SYSMAINT | SYSPROG | SYSCONFIG | SYSDEVEL | SYSDEBUG)
#define SYSCMDNDIAG8 (SYSCMD | SYSNDIAG8)
#define SYSCFGNDIAG8 (SYSCONFIG | SYSNDIAG8)
#define SYSALLNDIAG8 (SYSALL | SYSNDIAG8)
#define SYSCMDNOPER (SYSCMD - SYSOPER)
#define SYSCMDNOPERNDIAG8 (SYSCMDNDIAG8 - SYSOPER)
#define SYSCMDNOPERNPROG (SYSCMDNOPER - SYSPROG)
#define SYSPROGDEVEL (SYSPROG | SYSDEVEL)
/*-------------------------------------------------------------------*/
/* Macros used to define entries in the command table */
/*-------------------------------------------------------------------*/
#define _COMMAND(_s, _f,_t,_d,_l) {(_s),(_d),(_l),(_f),(0), (_t)},
#define _CMDABBR(_s,_a,_f,_t,_d,_l) {(_s),(_d),(_l),(_f),(_a),(_t)},
/*-------------------------------------------------------------------*/
/* Macros used to declare the functions before they're referenced. */
/*-------------------------------------------------------------------*/
#define _FW_REF_CMD(_s, _f,_t,_d,_l) extern int (_f)( CMDFUNC_ARGS_PROTO );
#define _FW_REF_ABR(_s,_a,_f,_t,_d,_l) extern int (_f)( CMDFUNC_ARGS_PROTO );
/*-------------------------------------------------------------------*/
/* Create forward references for all commands in the command table */
/*-------------------------------------------------------------------*/
#define _FW_REF
#define COMMAND _FW_REF_CMD
#define CMDABBR _FW_REF_ABR
#include "cmdtab.h" /* (declare all command functions) */
#undef COMMAND /* (will be re-#defined below) */
#undef CMDABBR /* (will be re-#defined below) */
#undef _FW_REF
/*-------------------------------------------------------------------*/
/* THE ACTUAL COMMAND TABLE ITSELF */
/*-------------------------------------------------------------------*/
#define COMMAND _COMMAND
#define CMDABBR _CMDABBR
static CMDTAB cmdtab[] = { /* (COMMAND table) */
#include "cmdtab.h" /* (COMMAND entries) */
COMMAND ( NULL, NULL, 0, NULL, NULL ) /* (end of table) */
};
/*-------------------------------------------------------------------*/
/* Externally defined commands are defined/routed here */
/*-------------------------------------------------------------------*/
CALL_EXTCMD ( cachestats_cmd ) /* (lives in cache.c) */
CALL_EXTCMD ( shared_cmd ) /* (lives in shared.c) */
#if defined ( OPTION_PTTRACE ) /* ( OPTION_PTTRACE ) */
CALL_EXTCMD ( ptt_cmd ) /* (lives in pttrace.c) */
#endif /* ( OPTION_PTTRACE ) */ /* ( OPTION_PTTRACE ) */
/*-------------------------------------------------------------------*/
/* $zapcmd - internal debug - may cause havoc - use with caution */
/*-------------------------------------------------------------------*/
int zapcmd_cmd( CMDFUNC_ARGS_PROTO )
{
CMDTAB* cmdent;
int i;
// Format:
//
// $zapcmd xxxx NoCfg
// $zapcmd xxxx Cmd
// ...etc...
//
// For non-DEBUG (i.e. RETAIL/Release) builds:
//
// msglvl VERBOSE (optional)
// msglvl DEBUG (optional)
// cmdlvl DEBUG (*required!*) (because not DEBUG build,
// $zapcmd XXXX Cmd and $zapcmd is SYSDEBUG)
//
// In other words, the $zapcmd is itself a "debug" level command, and
// thus in order to use it, the debug cmdlvl must be set first (which
// is the default for DEBUG builds but not for Release/Retail builds).
UNREFERENCED(cmdline);
if (argc > 1)
{
for (cmdent = cmdtab; cmdent->statement; cmdent++)
{
if (!strcasecmp(argv[1], cmdent->statement))
{
if (argc > 2)
for (i = 2; i < argc; i++)
{
if (!strcasecmp(argv[i],"Cfg"))
cmdent->type |= SYSCONFIG;
else
if (!strcasecmp(argv[i],"NoCfg"))
cmdent->type &= ~SYSCONFIG;
else
if (!strcasecmp(argv[i],"Cmd"))
cmdent->type |= SYSCMD;
else
if (!strcasecmp(argv[i],"NoCmd"))
cmdent->type &= ~SYSCMD;
else
{
logmsg(_("Invalid arg: %s: %s %s [(No)Cfg|(No)Cmd]\n"),argv[i],argv[0],argv[1]);
return -1;
}
}
else
logmsg(_("%s: %s(%sCfg,%sCmd)\n"),argv[0],cmdent->statement,
(cmdent->type&SYSCONFIG)?"":"No",(cmdent->type&SYSCMD)?"":"No");
return 0;
}
}
logmsg(_("%s: %s not in command table\n"),argv[0],argv[1]);
return -1;
}
else
logmsg(_("Usage: %s <command> [(No)Cfg|(No)Cmd]\n"),argv[0]);
return -1;
}
/*-------------------------------------------------------------------*/
/* Command processing helper functions */
/*-------------------------------------------------------------------*/
int OnOffCommand ( CMDFUNC_ARGS_PROTO ); /* (see hsccmd.c) */
int ShadowFile_cmd ( CMDFUNC_ARGS_PROTO ); /* (see hsccmd.c) */
/*-------------------------------------------------------------------*/
/* Background command processing structure */
/*-------------------------------------------------------------------*/
struct BGCMD
{
CMDFUNC *func; /* Command function to call */
char cmdline[FLEXIBLE_ARRAY]; /* Command's command-line */
};
typedef struct BGCMD BGCMD;
/*-------------------------------------------------------------------*/
/* Thread to process a command in the "background" */
/*-------------------------------------------------------------------*/
void *bgcmd_thread( void *bgcmd )
{
BGCMD* pBGCMD;
char* cmdline;
int argc;
char* argv[MAX_ARGS];
pBGCMD = (BGCMD*) bgcmd;
/* (must save copy of cmdline since parse_args modifies it) */
cmdline = strdup( pBGCMD->cmdline );
parse_args( pBGCMD->cmdline, MAX_ARGS, argv, &argc );
pBGCMD->func( CMDFUNC_ARGS );
free( pBGCMD );
free( cmdline );
return NULL;
}
/*-------------------------------------------------------------------*/
/* Helper macros to ensure serialized command processing */
/*-------------------------------------------------------------------*/
#if defined(OPTION_CMDSER)
#define HERC_CMD_ENTRY() \
do { \
/* Wait for current command to complete before starting \
the next one, UNLESS this is the same thread calling \
(to allow commands to call other commands if needed) */ \
obtain_lock( &sysblk.cmdlock ); \
{ \
TID tid = thread_id(); \
while (sysblk.cmdtid && tid != sysblk.cmdtid) \
wait_condition( &sysblk.cmdcond, &sysblk.cmdlock ); \
sysblk.cmdtid = tid; \
sysblk.cmdcnt++; \
} \
release_lock( &sysblk.cmdlock ); \
} while (0)
#else
#define HERC_CMD_ENTRY()
#endif
#if defined(OPTION_CMDSER)
#define HERC_CMD_EXIT() \
do { \
/* Indicate the current command has now completed processing. \
This allows the next waiting command to begin processing. */ \
obtain_lock( &sysblk.cmdlock ); \
{ \
sysblk.cmdcnt--; \
if (!sysblk.cmdcnt) \
{ \
sysblk.cmdtid = 0; \
broadcast_condition( &sysblk.cmdcond ); \
} \
} \
release_lock( &sysblk.cmdlock ); \
} while (0)
#else
#define HERC_CMD_EXIT()
#endif
/*-------------------------------------------------------------------*/
/* Route Hercules command to proper command handling function */
/*-------------------------------------------------------------------*/
int CallHercCmd ( CMDFUNC_ARGS_PROTO )
{
CMDTAB* pCmdTab;
size_t cmdlen, matchlen;
int rc = HERRINVCMD; /* Default to invalid command */
/* Let 'cscript' command run immediately in any context */
if (argc >= 1 && strcasecmp( argv[0], "cscript" ) == 0)
return cscript_cmd( CMDFUNC_ARGS );
HERC_CMD_ENTRY();
/* [ENTER] key by itself: either start the CPU or ignore
it altogether when instruction stepping is not active. */
if (0
|| !argc /* (no args) */
|| !argv[0] /* (no cmd) */
|| !cmdline /* (no cmdline) */
|| !cmdline[0] /* (empty cmd) */
|| !argv[0][0] /* (empty cmd) */
)
{
if (sysblk.inststep)
rc = start_cmd( 0, NULL, NULL );
else
rc = 0; /* ignore [ENTER] */
HERC_CMD_EXIT();
return rc;
}
/* (sanity check) */
ASSERT( argc && cmdline && *cmdline && argv[0] && argv[0][0] );
#if defined( OPTION_DYNAMIC_LOAD )
/* If a system command hook exists, let it try processing it first. */
/* Only if it rejects it, will we then try processing it ourselves. */
if(system_command)
if((rc = system_command( CMDFUNC_ARGS )) != HERRINVCMD)
{
HERC_CMD_EXIT();
return rc;
}
#endif /* defined( OPTION_DYNAMIC_LOAD ) */
/* Check for comment command. We need to test for this separately
rather than scanning our COMAMND table since the first token
of the "command" might not be a single '#' or '*'. That is to
say, the first token might be "#comment" or "*comment" (with
no blanks following the '#' or '*'), which would thus not match
either of our "comment_cmd" COMMAND table entries. Note that
this also means the COMMAND table entries for '*' and '#' are
redundant since they will never be used (since we're processing
comments here and not via our table search), but that's okay. */
if (0
|| argv[0][0] == '#' /* (comment command?) */
|| argv[0][0] == '*' /* (comment command?) */
)
{
/* PROGRAMMING NOTE: we ALWAYS call the "comment_cmd" function
for comments even though today it does nothing. We might decide
to do additional processing for comments in the future (such
as simply counting them for example), so we should ALWAYS call
our comment_cmd function here instead of just returning. */
rc = comment_cmd( CMDFUNC_ARGS );
HERC_CMD_EXIT();
return rc;
}
/* Route standard formatted commands from our COMMAND routing table */
/* PROGRAMMING NOTE: since our table is now sorted, the below could
be converted to a more efficient binary search algorithm instead */
for (pCmdTab = cmdtab; pCmdTab->statement; pCmdTab++)
{
if (1
&& pCmdTab->function
&& (pCmdTab->type & sysblk.sysgroup)
/* Commands issues through DIAG8 must NOT be part of the SYSNDIAG8 group */
&& (!(sysblk.diag8cmd & DIAG8CMD_RUNNING) || !(pCmdTab->type & SYSNDIAG8))
)
{
cmdlen = pCmdTab->mincmdlen ? pCmdTab->mincmdlen : strlen( pCmdTab->statement );
matchlen = MAX( strlen(argv[0]), cmdlen );
if (!strncasecmp( argv[0], pCmdTab->statement, matchlen ))
{
char cmd[256]; /* (copy of command name) */
/* Make full-length copy of the true command's name */
strlcpy( cmd, pCmdTab->statement, sizeof(cmd) );
argv[0] = cmd; /* (since theirs may be abbreviated) */
/* Run command in background? (last argument == '&') */
if (strcmp(argv[argc-1],"&") == 0)
{
BGCMD *bgcmd;
TID tid;
int i,len;
/* Calculate length of the command-line (all arguments
except the last one), including intervening blanks. */
for (len=0, i=0; i < argc-1; i++ )
len += (int) strlen( (char*) argv[i] ) + 1;
/* Build parameter to pass to background thread */
bgcmd = (BGCMD*) malloc( sizeof(BGCMD) + len );
bgcmd->func = pCmdTab->function;
/* Build private copy of cmdline for bgcmd_thread */
strlcpy( bgcmd->cmdline, argv[0], len );
for (i=1; i < argc-1; i++)
{
strlcat( bgcmd->cmdline, " ", len );
strlcat( bgcmd->cmdline, argv[i], len );
}
/* Process command asynchronously in the background */
rc = create_thread( &tid, DETACHED, bgcmd_thread, bgcmd, "bgcmd_thread" );
}
else /* (not a background command) */
{
/* Does last argument start with two ampersands? */
if (strncmp( argv[argc-1], "&&", 2 ) == 0)
/* Yes, skip past the first one */
argv[argc-1]++; /* ("&&&" ==> "&&", "&&" ==> "&", etc) */
/* Process the Hercules command */
rc = pCmdTab->function( CMDFUNC_ARGS );
}
break;
}
/* end strncasecmp( table entry match ) */
}
/* end if ( valid table entry ) */
}
/* end for ( search table ) */
/* If we didn't find an exact match in our table, check if
this is maybe a special non-standard formatted command. */
if (rc == HERRINVCMD && (sysblk.sysgroup & SYSCMDNOPER))
{
/* shadow file commands: add/remove/compress/display/check */
if (0
|| !strncasecmp( cmdline, "sf+", 3 )
|| !strncasecmp( cmdline, "sf-", 3 )
|| !strncasecmp( cmdline, "sfc", 3 )
|| !strncasecmp( cmdline, "sfd", 3 )
|| !strncasecmp( cmdline, "sfk", 3 )
)
rc = ShadowFile_cmd( CMDFUNC_ARGS );
else
/* "x+" and "x-" commands: turn switch on or off */
if (0
|| '+' == cmdline[1]
|| '-' == cmdline[1]
)
rc = OnOffCommand( CMDFUNC_ARGS );
}
HERC_CMD_EXIT();
return rc;
}
/* end CallHercCmd */
/*-------------------------------------------------------------------*/
/* Hercules command line processor */
/*-------------------------------------------------------------------*/
int HercCmdLine (char* pszCmdLine)
{
int argc;
char* argv[ MAX_ARGS ];
char* cmdline = NULL;
int rc = -1;
/* Save unmodified copy of the command line in case
its format is unusual and needs customized parsing. */
cmdline = strdup( pszCmdLine );
/* Parse the command line into its individual arguments.
Note: original command line now sprinkled with nulls */
parse_args( pszCmdLine, MAX_ARGS, argv, &argc );
/* Our primary Hercules command function gets first crack. */
if ((rc = CallHercCmd( CMDFUNC_ARGS )) != HERRINVCMD)
goto HercCmdExit;
ASSERT( argv[0] ); /* (herc handles any/all empty commands) */
#if defined( _FEATURE_SYSTEM_CONSOLE )
/* See if maybe it's a command that the guest understands. */
if ( sysblk.scpimply && can_send_command() )
rc = scp_command( cmdline, FALSE, sysblk.scpecho ? TRUE : FALSE );
else
#endif
/* Error: unknown/unsupported command */
WRMSG( HHC01600, "E", argv[0] );
HercCmdExit:
/* Free our saved copy */
free( cmdline );
if (MLVL( DEBUG ))
{
char msgbuf[32];
MSGBUF( msgbuf, "RC = %d", rc );
WRMSG( HHC90000, "D", msgbuf );
}
return rc;
}
/* end HercCmdLine */
/*-------------------------------------------------------------------*/
/* HelpMessage - print help text for message hhcnnnnna */
/*-------------------------------------------------------------------*/
int HelpMessage(char *msg)
{
char *help[][4] = {
{ HMSG(HHC01415),
"This message displays the build data and time of the Hercules executables.",
"Information.",
"None." },
{ NULL, NULL, NULL, NULL }
};
int i;
char id[9];
strlcpy(id, "HHC",sizeof(id));
strncpy(&id[3], &msg[3], 5);
id[8] = 0;
for(i = 0; help[i][0] && strncmp(help[i][0], id, 8); i++);
if(help[i][0])
WRMSG(HHC00017, "I", help[i][0], help[i][1], help[i][2], help[i][3]);
else
WRMSG(HHC01607, "I", id);
return(-1);
}
/*-------------------------------------------------------------------*/
/* Sort COMMAND table ascending by command/statement */
/*-------------------------------------------------------------------*/
static int SortCmdTab( const void* p1, const void* p2 )
{
CMDTAB* pCmdTab1 = (CMDTAB*) p1;
CMDTAB* pCmdTab2 = (CMDTAB*) p2;
/* (special handling for NULL table terminator) */
return (pCmdTab1->statement && pCmdTab2->statement) ?
strcasecmp( pCmdTab1->statement, pCmdTab2->statement )
: (!pCmdTab1->statement ? +1 : -1);
}
/*-------------------------------------------------------------------*/
/* HelpCommand - display more help for a given command (internal) */
/*-------------------------------------------------------------------*/
int HelpCommand( CMDFUNC_ARGS_PROTO )
{
static int didinit = 0;
CMDTAB* pCmdTab;
int rc = 1;
int pfxlen = -1;
char *p = NULL;
UNREFERENCED( cmdline );
if (!didinit)
{
qsort( cmdtab, _countof( cmdtab ), sizeof( CMDTAB ), SortCmdTab );
didinit = 1;
}
/* Too many arguments? */
if (argc > 2)
{
// "Invalid command usage. Type 'help %s' for assistance."
WRMSG( HHC02299, "E", "help" );
return 1;
}
/* If "help pfx*", calculate prefix length */
if (argc == 2)
{
p = strchr(argv[1], '*');
if (p != NULL)
{
pfxlen = (int)(p - argv[1]);
if (strlen( argv[1] ) > (unsigned) (pfxlen + 1))
{
// "Invalid command usage. Type 'help %s' for assistance."
WRMSG( HHC02299, "E", argv[0] );
return -1;
}
}
}
/* List all commands or those matching given prefix? */
if (argc < 2 || pfxlen >= 0) /* "help" or "help pfx*" ? */
{
int found = FALSE;
int didlong = FALSE;
char longflag;
if (argc < 2)
pfxlen = 0;
/* List standard formatted commands from our routing table */
for (pCmdTab = cmdtab; pCmdTab->statement; pCmdTab++)
{
if ( (pCmdTab->type & sysblk.sysgroup)
&& (pCmdTab->shortdesc)
&& (pfxlen == 0 || !strncasecmp( argv[1], pCmdTab->statement, pfxlen ))
)
{
longflag = ' ';
if (pCmdTab->longdesc)
{
longflag = '*';
didlong = TRUE;
}
if (!found)
{
found = TRUE;
WRMSG( HHC01603, "I", "" );
WRMSG( HHC01602, "I", "Command", ' ', "Description" );
WRMSG( HHC01602, "I", "-------", ' ', "-----------------------------------------------" );
}
WRMSG( HHC01602, "I", pCmdTab->statement, longflag, pCmdTab->shortdesc );
}
}
/* Prefix given but no matches found? */
if (pfxlen > 0 && !found)
{
// "No help available for mask '%s'"
WRMSG( HHC01609, "E", argv[1] );
rc = -1;
}
else
{
WRMSG( HHC01603, "I", "" );
if (didlong)
{
// " (*) More help available."
WRMSG( HHC01610, "I" );
WRMSG( HHC01603, "I", "" );
}
rc = 0;
}
}
else /* (argc == 2 && pfxlen < 0) "help cmd": Show help for given command */
{
char longflag;
size_t cmdlen, matchlen;
for (pCmdTab = cmdtab; pCmdTab->statement; pCmdTab++)
{
cmdlen = pCmdTab->mincmdlen ? pCmdTab->mincmdlen : strlen( pCmdTab->statement );
matchlen = MAX( strlen(argv[1]), cmdlen );
if (1
&& (pCmdTab->shortdesc)
&& (pCmdTab->type & sysblk.sysgroup)
&& !strncasecmp( argv[1], pCmdTab->statement, matchlen )
)
{
longflag = (pCmdTab->longdesc) ? '*' : ' ';
WRMSG( HHC01603, "I", "" );
WRMSG( HHC01602, "I", "Command", ' ', "Description" );
WRMSG( HHC01602, "I", "-------", ' ', "-------------------------------------------------------" );
WRMSG( HHC01602, "I", pCmdTab->statement, longflag, pCmdTab->shortdesc);
if (pCmdTab->longdesc)
{
char buf[257];
int i = 0;
int j;
WRMSG( HHC01603, "I", "" );
while(pCmdTab->longdesc[i])
{
for(j = 0; j < (int)sizeof(buf) &&
pCmdTab->longdesc[i] &&
pCmdTab->longdesc[i] != '\n'; i++, j++)
{
buf[j] = pCmdTab->longdesc[i];
}
buf[j] = '\0';
if(pCmdTab->longdesc[i] == '\n')
i++;
WRMSG( HHC01603, "I", buf );
}
}
WRMSG( HHC01603, "I", "" );
rc = 0;
break;
}
}
/* If command not found, check if message help (e.g. "help HHCnnnnn[s]") */
if (rc == 1) /* (not found?) */
{
/* "help HHCnnnnn" or "help HHCnnnnns" */
if (strncasecmp( argv[1], "HHC", 3 ) == 0
&& (strlen( argv[1] ) == 8 ||
strlen( argv[1] ) == 9))
{
rc = HelpMessage( argv[1] );
}
else
{
// "Unknown herc command '%s', no help available"
WRMSG( HHC01604, "I", argv[1] );
rc = -1;
}
}
}
return rc;
}
/* end HelpCommand */
/*-------------------------------------------------------------------*/
/* Helper function to echo a command to the console (internal) */
/*-------------------------------------------------------------------*/
static void EchoHercCmdLine( const char* cmd )
{
#if defined( OPTION_CMDTGT )
if (CMDTGT_HERC != sysblk.cmdtgt)
WRMSG( HHC00013, "I", cmd ); // "Herc command: '%s'"
else
#endif /* defined( OPTION_CMDTGT ) */
WRMSG( HHC01603, "I", cmd ); // "%s"
}
void* FindSCRCTL( TID tid );// (external helper function; see script.c)
/*-------------------------------------------------------------------*/
/* panel_command entry-point: determine if Hercules or scp_command */
/*-------------------------------------------------------------------*/
#if defined( OPTION_DYNAMIC_LOAD )
DLL_EXPORT void *panel_command_r (void *cmdline)
#else
void *panel_command (void *cmdline)
#endif
{
#define MAX_CMD_LEN (32768)
char cmd[ MAX_CMD_LEN ]; /* Copy of panel command */
char *pCmdLine;
unsigned i;
int hercecho = 1; /* Default echo to console */
int rc = 0; /* Return Code from command */
pCmdLine = cmdline; ASSERT( pCmdLine );
/* Every command will be stored in history list,
EXCEPT: null commands, script commands, scp input,
and "silent" commands (prefixed with '-') */
if (*pCmdLine != 0 && !FindSCRCTL(thread_id()))
{
if (!(*pCmdLine == '-')) /* (normal command?) */
{
#if defined( _FEATURE_SYSTEM_CONSOLE )
if (*pCmdLine == '.' || *pCmdLine == '!')
{
if (sysblk.scpecho)
history_add( cmdline );
}
else
#endif /* defined( _FEATURE_SYSTEM_CONSOLE ) */
history_add( cmdline );
}
}
/* Copy panel command to work area, skipping leading blanks */
/* If the command starts with a -, then strip it and indicate
* that we do NOT want the command echoed to the console. */
hercecho = 1; /* (default) */
while (*pCmdLine && isspace( *pCmdLine ))
pCmdLine++;
i = 0;
while (*pCmdLine && i < (MAX_CMD_LEN-1))
{
if (i == 0 && (0 /* (1st character?) */
|| *pCmdLine == '-' /* (silent command) */
|| *pCmdLine == '#' /* (silent comment) */
))
{
hercecho = 0; /* (silence please) */
if (*pCmdLine == '-') /* (silent command) */
{
pCmdLine++; /* (skip past the '-' ... */
/* ... and remove blanks) */
while (*pCmdLine && isspace(*pCmdLine))
pCmdLine++; /* (get past blank) */
}
}
cmd[i] = *pCmdLine;
i++;
pCmdLine++;
}
cmd[i] = 0;
/* (just pressing the enter key shouldn't be echoed) */
if (0 == cmd[0])
hercecho = 0; /* (silence please) */
#if defined( OPTION_CMDTGT )
/* Check for herc, scp or pscp command... */
/* Please note: 'cmdtgt' is a hercules command, but will be
passed to the scp if scp target is set! This means that
once the scp target has been set, to change the target
back to herc, you must use: "herc cmdtgt herc". This is
because the 'herc' command is ALWAYS a Hercules command
(regardless of command target mode), whereas the 'cmdtgt'
is passed to the scp whenever scp target mode is set.
Thus you must explicitly request 'cmdtgt' be processed
by Hercules and not the scp, by using the 'herc' prefix.
*/
if (0
|| !strncasecmp( cmd, "herc ", 5 ) /* Hercules */
|| !strncasecmp( cmd, "scp ", 4 ) /* Guest O/S */
|| !strncasecmp( cmd, "pscp ", 5 ) /* Priority SCP */
)
{
if (hercecho)
EchoHercCmdLine( cmd );
rc = HercCmdLine( cmd );
return (void*)rc;
}
/* Send the command to the currently active command target */
switch (sysblk.cmdtgt)
{
case CMDTGT_HERC: /* Hercules */
{
/* (stay compatible) */
#endif /* defined( OPTION_CMDTGT ) */
#if defined( _FEATURE_SYSTEM_CONSOLE )
if(cmd[0] == '.' || cmd[0] == '!')
{
int priomsg = cmd[0] == '!' ? TRUE : FALSE;
int scpecho = sysblk.scpecho ? TRUE : FALSE;
if (!cmd[1]) { /* (empty command given?) */
cmd[1] = ' '; /* (must send something!) */
cmd[2] = 0;
}
rc = scp_command( cmd+1, priomsg, scpecho );
}
else
#endif /* defined( _FEATURE_SYSTEM_CONSOLE ) */
{
if (hercecho && *cmd)
EchoHercCmdLine( cmd );
#if defined( OPTION_CONFIG_SYMBOLS )
/* Perform variable substitution */
/* First, set some 'dynamic' symbols
to their own values */
set_symbol( "CUU", "$(CUU)" );
set_symbol( "CCUU", "$(CCUU)" );
set_symbol( "DEVN", "$(DEVN)" );
{
char *cl = resolve_symbol_string( cmd );
rc = HercCmdLine( cl );
free( cl );
}
#else /* !defined( OPTION_CONFIG_SYMBOLS ) */
rc = HercCmdLine( cmd );
#endif /* defined( OPTION_CONFIG_SYMBOLS ) */
}
#if defined( OPTION_CMDTGT )
break;
}
case CMDTGT_SCP: /* Guest O/S */
{
int priomsg = FALSE; /* normal scp command */
int scpecho = TRUE; /* (always echo to hmc) */
if (!cmd[0]) { /* (empty command given?) */
cmd[0] = ' '; /* (MUST send something!) */
cmd[1] = 0;
}
rc = scp_command( cmd, priomsg, scpecho );
break;
}
case CMDTGT_PSCP: /* Priority SCP */
{
int priomsg = TRUE; /* Priority scp command */
int scpecho = TRUE; /* (always echo to hmc) */
if (!cmd[0]) { /* (empty command given?) */
cmd[0] = ' '; /* (MUST send something!) */
cmd[1] = 0;
}
rc = scp_command( cmd, priomsg, scpecho );
break;
}
}
#endif /* defined( OPTION_CMDTGT ) */
return (void*)rc;
}
/* end panel_command / panel_command_r */