storename

commit d9ec2da15317ee8382c14ef23b41c171fcd16f0d
Author: Jacob R. Edwards <jacob@jacobedwards.org>
Date:   Mon, 20 Mar 2023 11:06:19 -0700

Add storename project from 2021

I probably wrote the program mid to late 2021. The Makefile was
written just now.

Diffstat:
A
Makefile
 | 
22
++++++++++++++++++++++
A
storename.1
 | 
25
+++++++++++++++++++++++++
A
storename.c
 | 
55
+++++++++++++++++++++++++++++++++++++++++++++++++++++++

3 files changed, 102 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile
@@ -0,0 +1,22 @@
+cc = ${CC}
+cflags = ${CFLAGS} -I/usr/X11R6/include
+ldflags = ${LDFLAGS} -L/usr/X11R6/lib -lX11
+
+.c.o:
+	${cc} ${cflags} -c -o $@ $<
+
+storename: storename.o
+	${cc} ${ldflags} -o $@ storename.o
+
+install: storename
+	cp storename ${prefix}/bin
+	cp storename.1 ${prefix}/man/man1
+
+uninstall:
+	rm -f ${prefix}/bin/storename
+	rm -f ${prefix}/man/man1/storename.1
+
+clean:
+	rm -f storename storename.o
+
+.PHONY: install uninstall clean
diff --git a/storename.1 b/storename.1
@@ -0,0 +1,25 @@
+.\" Copyright 2021 Jacob R. Edwards
+.Dd July 22, 2021
+.Dt STORENAME 1
+.Os
+.Sh NAME
+.Nm storename
+.Nd Store input as root X window name
+.Sh SYNOPSIS
+.Nm
+.Sh DESCRIPTION
+The
+.Nm
+utility sets the root X window name to each line of input as it
+reads it.
+.Sh EXIT STATUS
+.Ex -std
+.Sh EXAMPLES
+Store the current date and time as the root window name:
+.Pp
+.Dl $ while sleep 1; do date; done | storename
+.Sh SEE ALSO
+.Xr dwm 1 ,
+.Xr status 1
+.Sh AUTHORS
+.An Jacob R. Edwards
diff --git a/storename.c b/storename.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2021 Jacob R. Edwards
+ * License: GPLv3
+ * Compile:
+ * 	cc -o storename -L/usr/X11R6/lib -I/usr/X11R6/include storename.c -lX11
+ *
+ * The storename utility stores each line of input as the default
+ * root window's name until EOF is encountered.
+ */
+
+#include <X11/Xlib.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef __OpenBSD__
+#include <unistd.h>
+#endif
+
+void
+die(char *s)
+{
+	perror(s);
+	exit(1);
+}
+
+int
+main(void)
+{
+	Display *display;
+	char *buf;
+	size_t size;
+	ssize_t len;
+
+	display = XOpenDisplay(NULL);
+	if (display == NULL)
+		die("unable to open display");
+
+#ifdef __OpenBSD__
+	if (pledge("stdio", NULL) == -1)
+		die("pledge");
+#endif
+
+	while ((len = getline(&buf, &size, stdin)) != -1) {
+		if (buf[len - 1] == '\n')
+			buf[len - 1] = 0;
+		XStoreName(display, DefaultRootWindow(display), buf);
+		XFlush(display);
+	}
+
+	XCloseDisplay(display);
+	if (ferror(stdin))
+		die("stdin");
+	return 0;
+}