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From: davis@mercury.ee.rochester.edu (Al Davis)
Newsgroups: comp.binaries.ibm.pc.d
Subject: Re: changing switch char
Summary: replacement "system" call for msc
Message-ID: <1594@valhalla.ee.rochester.edu>
Date: 18 Nov 88 01:28:53 GMT
References: <4803@bsu-cs.UUCP>
Sender: usenet@valhalla.ee.rochester.edu
Reply-To: davis@mercury.ee.rochester.edu (Al Davis)
Organization: UR Dept. of Electrical Engg, Rochester NY 14627
Lines: 36


Here is a replacement system function for msc, that supports switchar.
If only they would read their own documentation.
(instead of IBM's??)

Note: if you look in THEIR docs, switchar is documented.


int system(string)
const char *string;
{
char *shell;
char args[200];
int errcod;

if ( !(shell=getenv("COMSPEC")) )
    return 127;

sprintf(args,"%cc %s",getswitchar(),string);

errcod = spawnle(P_WAIT, shell, shell, args, NULL, environ);
_fpreset();
if (errcod == EOF)
    return 127;
return 0;
}
/*--------------------------------------------------------------------------*/
char getswitchar()
{
union REGS r;

r.h.al = 0;
r.h.ah = 0x37;
intdos(&r, &r);
return r.h.dl;
}