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Digital-Research-Source-Code/CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v102a/clib/main.c
Sepp J Morris 31738079c4 Upload
Digital Research
2020-11-06 18:50:37 +01:00

55 lines
2.0 KiB
C

/*****************************************************************************
*
* R U N T I M E S T A R T O F F R O U T I N E
* -----------------------------------------------
* Copyright 1982,83 by Digital Research Inc. All rights reserved.
*
* Routine "_main" is entered from the C header routine to start a C
* program. It opens STDIN, STDOUT and STDERR to the console, and
* translates the command line to lower case. Then it calls "__main()".
* There are two versions of "__main()" (one compiled for wildcards
* and the other compiled without) compiled from the source module
* "XMAIN.C".
*
* Calling Sequence:
* return = _main(command,length);
*
* Where:
* command Is the address of the command line from CP/M
* length Is the number of characters in the line,
* excluding the termination character (CR/LF).
*
* Modfications:
* 11-Oct-83 whf converted to DRC from CPM68K
*
*****************************************************************************/
#include "portab.h" /* Include std definitions */
#include "osif.h" /* */
#include "ctype.h" /* */
EXTERN BYTE __tname[]; /* Name of terminal device */
EXTERN BYTE __fdecls(); /* force loading of _iob */
EXTERN BYTE ___atab(); /* force loading of ___atab */
#define STDIN 0 /* file descriptors */
#define STDOUT 1 /* */
#define STDERR 2 /* */
/* */
_main(com, len) /****************************/
BYTE *com; /* Command address */
WORD len; /* Command length */
{ /****************************/
REG BYTE *s; /* Temp byte pointer */
/****************************/
_chinit(); /* Initialize channels */
open(__tname,READ); /* Open STDIN */
open(__tname,WRITE); /* Open STDOUT */
open(__tname,WRITE); /* Open STDERR */
com[len] = NULL; /* Insure null at line end */
for (s = com; *s; s++) /* Convert string to */
*s = tolower(*s); /* lower case */
__main(com,len); /* Do rest (replaceable) */
} /****************************/