storename

Trivial utility for setting the root window's name in X11
git clone git://jacobedwards.org/storename
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storename.c (937B)

      1 /*
      2  * Copyright 2021 Jacob R. Edwards
      3  * License: GPLv3
      4  * Compile:
      5  * 	cc -o storename -L/usr/X11R6/lib -I/usr/X11R6/include storename.c -lX11
      6  *
      7  * The storename utility stores each line of input as the default
      8  * root window's name until EOF is encountered.
      9  */
     10 
     11 #include <X11/Xlib.h>
     12 
     13 #include <stdio.h>
     14 #include <stdlib.h>
     15 #include <string.h>
     16 #ifdef __OpenBSD__
     17 #include <unistd.h>
     18 #endif
     19 
     20 void
     21 die(char *s)
     22 {
     23 	perror(s);
     24 	exit(1);
     25 }
     26 
     27 int
     28 main(void)
     29 {
     30 	Display *display;
     31 	char *buf;
     32 	size_t size;
     33 	ssize_t len;
     34 
     35 	display = XOpenDisplay(NULL);
     36 	if (display == NULL)
     37 		die("unable to open display");
     38 
     39 #ifdef __OpenBSD__
     40 	if (pledge("stdio", NULL) == -1)
     41 		die("pledge");
     42 #endif
     43 
     44 	while ((len = getline(&buf, &size, stdin)) != -1) {
     45 		if (buf[len - 1] == '\n')
     46 			buf[len - 1] = 0;
     47 		XStoreName(display, DefaultRootWindow(display), buf);
     48 		XFlush(display);
     49 	}
     50 
     51 	XCloseDisplay(display);
     52 	if (ferror(stdin))
     53 		die("stdin");
     54 	return 0;
     55 }