[4381] in Athena Bugs
6.4R: staff_ln03filter
daemon@ATHENA.MIT.EDU (Richard Basch)
Sat Mar 3 17:52:03 1990
Date: Sat, 3 Mar 90 17:51:42 -0500
To: bugs@ATHENA.MIT.EDU
From: Richard Basch <probe@MIT.EDU>
In rel-eng[1904], <paul> suggests changing the ln03filter to reject
PostScript files. Various other people have requested the same thing.
However, I found a few problems with the changes that Paul provided, so
here is another version:
-Richard
------------------------------- cut here --------------------------------
#include <sys/file.h>
#include <sgtty.h>
#define send(s) write(1,s,sizeof(s)-1)
char str[]= "\033[!p"; /* Reset printer. */
char lnm[] = "\033[20h"; /* Line feed new line mode on. */
main()
{
register int count, block=0;
char buf[1024];
send(str);
send(lnm);
while ((count = read(0, buf, 1024)) > 0) {
if (!block++ && (count > 1) && (buf[0] == '%') && (buf[1] == '!')) {
send("Attempt to print PostScript file rejected");
break;
} else
write(1, buf, count);
}
send(str);
send(lnm);
}
