1 files changed, 58 insertions, 0 deletions
diff --git a/pkg/system/tee.x b/pkg/system/tee.x
new file mode 100644
index 00000000..b22abd32
--- /dev/null
+++ b/pkg/system/tee.x
@@ -0,0 +1,58 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<fset.h>
+
+define	SZ_OTSTR	10
+
+# TEE -- Tee the standard output.  The type of the output file defaults to
+# text file unless the caller specifies otherwise.  Note that this tee
+# writes the entire output all at once.
+
+procedure t_tee()
+
+char	tee_file[SZ_FNAME], out_type_string[SZ_OTSTR]
+bool	clgetb()
+pointer	sp, buf
+int	out, sz_buf, out_type, nchars
+int	open(), read(), strmatch(), getline(), fstati()
+
+begin
+	# Get params and open the output file.
+	call clgstr ("tee_file", tee_file, SZ_FNAME)
+	call clgstr ("out_type", out_type_string, SZ_OTSTR)
+
+	if (strmatch (out_type_string, "^#{b}") > 0)
+	    out_type = BINARY_FILE
+	else
+	    out_type = TEXT_FILE
+
+	if (clgetb ("append"))
+	    out = open (tee_file, APPEND, out_type)
+	else
+	    out = open (tee_file, NEW_FILE, out_type)
+
+
+	# Make a buffer and perform the copy operation.
+	call smark (sp)
+
+	if (out_type == TEXT_FILE) {
+	    call salloc (buf, SZ_LINE, TY_CHAR)
+	    while (getline (STDIN, Memc[buf]) != EOF) {
+		call putline (STDOUT, Memc[buf])
+		call putline (out, Memc[buf])
+	    }
+
+	} else {
+	    sz_buf = fstati (STDIN, F_BUFSIZE)
+	    call salloc (buf, sz_buf, TY_CHAR)
+
+	    while (read (STDIN, Memc[buf], sz_buf) != EOF) {
+		nchars = fstati (STDIN, F_NCHARS)
+		call write (STDOUT, Memc[buf], nchars)
+		call write (out, Memc[buf], nchars)
+	    }
+	}
+
+	call sfree (sp)
+	call close (out)
+end