BSD 2 development

Work on file man/libretro.u

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+.TH LIBRETRO UCB 4/8/79 UCB
+.SH NAME
+libretro \- library to fit version 7 programs on version 6 systems
+.SH SYNOPSIS
+.nf
+\fBcc \-I/usr/include/retrofit ... -lretro -lS
+.sp .1i
+#include <retrofit.h>
+.sp .1i
+int getuid();
+.sp .1i
+#include <sgtty.h>
+.sp .1i
+stty(unit, buf)
+struct sgttyb *buf;
+.sp .1i
+gtty(unit, buf)
+struct sgttyb *buf;
+.sp .1i
+#include <sys/types.h>
+#include <sys/stat.h>
+stat(name, stbuf)
+char *name;
+struct stat *stbuf;
+.sp .1i
+fstat(name, stbuf)
+char *name;
+struct stat *stbuf;
+.sp .1i
+char *
+getenv(name)
+char *name;
+.sp .1i
+isatty(unit)
+int unit;
+.sp .1i
+wait(status)
+int *status;\fR
+.fi
+.SH DESCRIPTION
+These implement version 7 functions on version 6 systems.
+.PP
+.I Getuid
+returns just the real user id; the high 8 bits are thus normally clear.
+.I Stty
+and
+.I gtty
+perform the normal operations, but rearrange the expand tabs bit into
+``tab3'' delay as version 7 does.
+.PP
+.I Stat
+and
+.I fstat
+maps a version 6 stat into the version 7 structure.
+.PP
+.I Getenv
+can be called with
+``HOME'' to return the home directory of the real user, or
+``TERM'' to return a string giving the terminal type in use.
+It returns 0 for everything else.
+.PP
+.I Isatty
+tells whether the specified unit is attaches to a terminal.
+.PP
+.I Wait
+does not call
+.I nargs
+so it will work separate i/d.
+.PP
+This library also defines ``_ctype'' as in stdio, but fixed so that
+end-of-file (\-1) has the correct attributes (as it does in version 7),
+and contains the
+.I htmp
+routines used to fake
+.I getenv.
+.SH FILES
+.DT
+/usr/include/retrofit  root for header files
+.br
+/etc/htmp                      data base for \fIgetenv\fR
+.SH SEE ALSO
+UNIX Programmers manual, version 7.
+.SH AUTHOR
+William Joy
+.SH BUGS