1 files changed, 38 insertions, 0 deletions
diff --git a/contrib/FAQ/code/printcap01/hpf.c b/contrib/FAQ/code/printcap01/hpf.c
new file mode 100644
index 0000000000000..8d78c092f902f
--- /dev/null
+++ b/contrib/FAQ/code/printcap01/hpf.c
@@ -0,0 +1,38 @@
+/*
+source to my hp filter, installed as /usr/libexec/lpr/hpf:
+*/
+#include "stdio.h"
+#include <signal.h>
+#include <sys/file.h>
+#include <sys/ioctl.h>
+#include <sgtty.h> 
+
+main(ac, av)
+int ac;
+char **av;
+{
+        int c;
+        struct sgttyb nbuf;
+        unsigned long lbits;
+
+        setbuf(stdout, NULL);
+        lbits = LDECCTQ | LPASS8 | LLITOUT;
+        ioctl(fileno(stdout), TIOCLSET, &lbits);
+        ioctl(fileno(stdout), TIOCGETP, &nbuf);
+        nbuf.sg_flags &= ~(ECHO | XTABS | CRMOD);
+        ioctl(fileno(stdout), TIOCSETP, &nbuf);
+
+        fputs("\033E\033&k2G", stdout);
+
+        while (1) {
+                if ((c = getchar()) != EOF) {
+                        putchar(c);
+                } else {
+                        break;
+                }
+        }
+
+        fputs("\033&l0H", stdout);
+
+        exit(0);
+}