WebSVN – SvarDOS – Diff – /svarcom/trunk/rmodinit.h


/* This file is part of the SvarCOM project and is published under the terms
 * of the MIT license.
 *
 * Copyright (C) 2021 Mateusz Viste
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
 
#ifndef RMODINIT_H
#define RMODINIT_H
 
#define FLAG_EXEC_AND_QUIT    1
#define FLAG_PERMANENT        2
#define FLAG_ECHOFLAG         4
#define FLAG_ECHO_BEFORE_BAT  8
#define FLAG_SKIP_AUTOEXEC   16
 
/* batch context structure used to track what batch file is being executed,
 * at what line, arguments, whether or not it has a parent batch... */
struct batctx {
  char fname[130];            /* truename of batch file being processed */
  char argv[130];             /* args of the batch call (0-separated) */
  unsigned long nextline;     /* offset in file of next bat line to process */
  struct batctx far *parent;  /* parent context if this batch was CALLed */
};
 
struct rmod_props {
  char inputbuf[130];         /* input buffer for INT 21, AH=0x0A */
  unsigned short rmodseg;     /* segment where rmod is loaded */
  unsigned long origparent;   /* original parent (far ptr) of the shell */
  unsigned short origenvseg;  /* original environment segment */
  unsigned char flags;        /* command line parameters */
  unsigned char version;      /* used to detect mismatch between rmod and SvarCOM */
  char awaitingcmd[130];      /* command to exec next time (if any) */
  struct batctx far *bat;
};
 
#define RMOD_OFFSET_ENVSEG     0x2C   /* stored in rmod's PSP */
#define RMOD_OFFSET_COMSPECPTR (0x100 + 0x4A)
#define RMOD_OFFSET_BOOTDRIVE  (0x100 + 0x4C)
#define RMOD_OFFSET_LEXITCODE  (0x100 + 0x5B)
#define RMOD_OFFSET_EXECPARAM  (0x100 + 0x5C)
#define RMOD_OFFSET_EXECPROG   (0x100 + 0x6A)
#define RMOD_OFFSET_STDINFILE  (0x100 + 0xEA)
#define RMOD_OFFSET_STDOUTFILE (0x100 + 0x16A)
#define RMOD_OFFSET_STDOUTAPP  (0x100 + 0x1EA)
#define RMOD_OFFSET_STDIN_DEL  (0x100 + 0x1EC)
#define RMOD_OFFSET_BRKHANDLER (0x100 + 0x1ED)
#define RMOD_OFFSET_ROUTINE    (0x100 + 0x1EF)
 
struct rmod_props far *rmod_install(unsigned short envsize, unsigned char *rmodcore, unsigned short rmodcore_len);
struct rmod_props far *rmod_find(unsigned short rmodcore_len);
void rmod_updatecomspecptr(unsigned short rmod_seg, unsigned short env_seg);
 
/* allocates bytes of far memory, flags it as belonging to rmod
 * the new block can be optionally flagged as 'ident' (if not null) and zero
 * out the newly allocated memory.
 * returns a far ptr to the allocated block, or NULL on error */
void far *rmod_fcalloc(unsigned short bytes, unsigned short rmod_seg, char *ident);
 
/* free memory previously allocated by rmod_fcalloc() */
void rmod_ffree(void far *ptr);
 
#endif
 

Subversion Repositories SvarDOS

(root)/svarcom/trunk/rmodinit.h – Rev 949 → 957

Rev 949		Rev 957
1	`/* This file is part of the SvarCOM project and is published under the terms`	1	`/* This file is part of the SvarCOM project and is published under the terms`
2	`* of the MIT license.`	2	`* of the MIT license.`
3	`*`	3	`*`
4	`* Copyright (C) 2021 Mateusz Viste`	4	`* Copyright (C) 2021 Mateusz Viste`
5	`*`	5	`*`
6	`* Permission is hereby granted, free of charge, to any person obtaining a`	6	`* Permission is hereby granted, free of charge, to any person obtaining a`
7	`* copy of this software and associated documentation files (the "Software"),`	7	`* copy of this software and associated documentation files (the "Software"),`
8	`* to deal in the Software without restriction, including without limitation`	8	`* to deal in the Software without restriction, including without limitation`
9	`* the rights to use, copy, modify, merge, publish, distribute, sublicense,`	9	`* the rights to use, copy, modify, merge, publish, distribute, sublicense,`
10	`* and/or sell copies of the Software, and to permit persons to whom the`	10	`* and/or sell copies of the Software, and to permit persons to whom the`
11	`* Software is furnished to do so, subject to the following conditions:`	11	`* Software is furnished to do so, subject to the following conditions:`
12	`*`	12	`*`
13	`* The above copyright notice and this permission notice shall be included in`	13	`* The above copyright notice and this permission notice shall be included in`
14	`* all copies or substantial portions of the Software.`	14	`* all copies or substantial portions of the Software.`
15	`*`	15	`*`
16	`* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR`	16	`* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR`
17	`* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,`	17	`* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,`
18	`* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE`	18	`* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE`
19	`* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER`	19	`* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER`
20	`* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING`	20	`* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING`
21	`* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER`	21	`* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER`
22	`* DEALINGS IN THE SOFTWARE.`	22	`* DEALINGS IN THE SOFTWARE.`
23	`*/`	23	`*/`
24		24
25	`#ifndef RMODINIT_H`	25	`#ifndef RMODINIT_H`
26	`#define RMODINIT_H`	26	`#define RMODINIT_H`
27		27
28	`#define FLAG_EXEC_AND_QUIT 1`	28	`#define FLAG_EXEC_AND_QUIT 1`
29	`#define FLAG_PERMANENT 2`	29	`#define FLAG_PERMANENT 2`
30	`#define FLAG_ECHOFLAG 4`	30	`#define FLAG_ECHOFLAG 4`
31	`#define FLAG_ECHO_BEFORE_BAT 8`	31	`#define FLAG_ECHO_BEFORE_BAT 8`
32	`#define FLAG_SKIP_AUTOEXEC 16`	32	`#define FLAG_SKIP_AUTOEXEC 16`
33		33
34	`/* batch context structure used to track what batch file is being executed,`	34	`/* batch context structure used to track what batch file is being executed,`
35	`* at what line, arguments, whether or not it has a parent batch... */`	35	`* at what line, arguments, whether or not it has a parent batch... */`
36	`struct batctx {`	36	`struct batctx {`
37	`char fname[130]; /* truename of batch file being processed */`	37	`char fname[130]; /* truename of batch file being processed */`
38	`char argv[130]; /* args of the batch call (0-separated) */`	38	`char argv[130]; /* args of the batch call (0-separated) */`
39	`unsigned long nextline; /* offset in file of next bat line to process */`	39	`unsigned long nextline; /* offset in file of next bat line to process */`
40	`struct batctx far parent; / parent context if this batch was CALLed */`	40	`struct batctx far parent; / parent context if this batch was CALLed */`
41	`};`	41	`};`
42		42
43	`struct rmod_props {`	43	`struct rmod_props {`
44	`char inputbuf[130]; /* input buffer for INT 21, AH=0x0A */`	44	`char inputbuf[130]; /* input buffer for INT 21, AH=0x0A */`
45	`unsigned short rmodseg; /* segment where rmod is loaded */`	45	`unsigned short rmodseg; /* segment where rmod is loaded */`
46	`unsigned long origparent; /* original parent (far ptr) of the shell */`	46	`unsigned long origparent; /* original parent (far ptr) of the shell */`
47	`unsigned short origenvseg; /* original environment segment */`	47	`unsigned short origenvseg; /* original environment segment */`
48	`unsigned char flags; /* command line parameters */`	48	`unsigned char flags; /* command line parameters */`
49	`unsigned char version; /* used to detect mismatch between rmod and SvarCOM */`	49	`unsigned char version; /* used to detect mismatch between rmod and SvarCOM */`
50	`char awaitingcmd[130]; /* command to exec next time (if any) */`	50	`char awaitingcmd[130]; /* command to exec next time (if any) */`
51	`struct batctx far *bat;`	51	`struct batctx far *bat;`
52	`};`	52	`};`
53		53
54	`#define RMOD_OFFSET_ENVSEG 0x2C /* stored in rmod's PSP */`	54	`#define RMOD_OFFSET_ENVSEG 0x2C /* stored in rmod's PSP */`
55	`#define RMOD_OFFSET_COMSPECPTR (0x100 + 0x4A)`	55	`#define RMOD_OFFSET_COMSPECPTR (0x100 + 0x4A)`
56	`#define RMOD_OFFSET_BOOTDRIVE (0x100 + 0x4C)`	56	`#define RMOD_OFFSET_BOOTDRIVE (0x100 + 0x4C)`
57	`#define RMOD_OFFSET_LEXITCODE (0x100 + 0x5B)`	57	`#define RMOD_OFFSET_LEXITCODE (0x100 + 0x5B)`
58	`#define RMOD_OFFSET_EXECPARAM (0x100 + 0x5C)`	58	`#define RMOD_OFFSET_EXECPARAM (0x100 + 0x5C)`
59	`#define RMOD_OFFSET_EXECPROG (0x100 + 0x6A)`	59	`#define RMOD_OFFSET_EXECPROG (0x100 + 0x6A)`
60	`#define RMOD_OFFSET_STDINFILE (0x100 + 0xEA)`	60	`#define RMOD_OFFSET_STDINFILE (0x100 + 0xEA)`
61	`#define RMOD_OFFSET_STDOUTFILE (0x100 + 0x16A)`	61	`#define RMOD_OFFSET_STDOUTFILE (0x100 + 0x16A)`
62	`#define RMOD_OFFSET_STDOUTAPP (0x100 + 0x1EA)`	62	`#define RMOD_OFFSET_STDOUTAPP (0x100 + 0x1EA)`
63	`#define RMOD_OFFSET_STDIN_DEL (0x100 + 0x1EC)`	63	`#define RMOD_OFFSET_STDIN_DEL (0x100 + 0x1EC)`
64	`#define RMOD_OFFSET_BRKHANDLER (0x100 + 0x1ED)`	64	`#define RMOD_OFFSET_BRKHANDLER (0x100 + 0x1ED)`
65	`#define RMOD_OFFSET_ROUTINE (0x100 + 0x1EF)`	65	`#define RMOD_OFFSET_ROUTINE (0x100 + 0x1EF)`
66		66
67	`struct rmod_props far rmod_install(unsigned short envsize, unsigned char rmodcore, unsigned short rmodcore_len);`	67	`struct rmod_props far rmod_install(unsigned short envsize, unsigned char rmodcore, unsigned short rmodcore_len);`
68	`struct rmod_props far *rmod_find(unsigned short rmodcore_len);`	68	`struct rmod_props far *rmod_find(unsigned short rmodcore_len);`
69	`void rmod_updatecomspecptr(unsigned short rmod_seg, unsigned short env_seg);`	69	`void rmod_updatecomspecptr(unsigned short rmod_seg, unsigned short env_seg);`
70		70
-		71	`/* allocates bytes of far memory, flags it as belonging to rmod`
-		72	`* the new block can be optionally flagged as 'ident' (if not null) and zero`
71	`/* allocate */`	73	`* out the newly allocated memory.`
-		74	`* returns a far ptr to the allocated block, or NULL on error */`
72	`void far rmod_fmalloc(unsigned short bytes, unsigned short rmod_seg, char ident);`	75	`void far rmod_fcalloc(unsigned short bytes, unsigned short rmod_seg, char ident);`
-		76
-		77	`/* free memory previously allocated by rmod_fcalloc() */`
73	`void rmod_ffree(void far *ptr);`	78	`void rmod_ffree(void far *ptr);`
74		79
75	`#endif`	80	`#endif`
76		81