| 0,0 → 1,100 |
|---|
| /* This file is part of the SvarCOM project and is published under the terms |
| * of the MIT license. |
| * |
| * Copyright (C) 2021-2022 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 |
| |
| #include "helpers.h" /* struct DTA definition */ |
| |
| #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 |
| #define FLAG_STEPBYSTEP 32 |
| |
| |
| /* 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 char flags; /* used for step-by-step execution */ |
| unsigned long nextline; /* offset in file of next bat line to process */ |
| struct batctx far *parent; /* parent context if this batch was CALLed */ |
| }; |
| |
| /* for context structure used to track the execution of the ongoing FOR loop */ |
| struct forctx { |
| char cmd[130]; /* copy of the original FOR command */ |
| struct DTA dta; /* DTA for FindNext on current pattern */ |
| unsigned short curpat; /* cmd offset of currently processed pattern */ |
| unsigned short nextpat; /* cmd offset of next pattern to be processed */ |
| unsigned short exec; /* cmd offset of the command to be executed */ |
| char varname; /* single char of variable name */ |
| unsigned char dta_inited; /* 0=requires FindFirst 1=FindNext */ |
| }; |
| |
| struct rmod_props { |
| 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; /* linked list of bat contexts, if BAT ongoing */ |
| struct forctx far *forloop; /* a single FOR loop structure, if FOR ongoing */ |
| }; |
| |
| #define RMOD_OFFSET_ENVSEG 0x2C /* stored in rmod's PSP */ |
| #define RMOD_OFFSET_INPUTBUF (0x100 + 0x08) |
| #define RMOD_OFFSET_COMSPECPTR (0x100 + 0xCE) |
| #define RMOD_OFFSET_BOOTDRIVE (0x100 + 0xD0) |
| #define RMOD_OFFSET_LEXITCODE (0x100 + 0xDF) |
| #define RMOD_OFFSET_EXECPARAM (0x100 + 0xE0) |
| #define RMOD_OFFSET_EXECPROG (0x100 + 0xEE) |
| #define RMOD_OFFSET_STDINFILE (0x100 + 0x16E) |
| #define RMOD_OFFSET_STDOUTFILE (0x100 + 0x1EE) |
| #define RMOD_OFFSET_STDOUTAPP (0x100 + 0x26E) |
| #define RMOD_OFFSET_STDIN_DEL (0x100 + 0x270) |
| #define RMOD_OFFSET_BRKHANDLER (0x100 + 0x271) |
| #define RMOD_OFFSET_ROUTINE (0x100 + 0x276) |
| |
| 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); |
| |
| /* free the entire linked list of bat ctx nodes (and set its rmod ptr to NULL) */ |
| void rmod_free_bat_llist(struct rmod_props far *rmod); |
| |
| #endif |