1 /* Generate window size/position coordinates for -geometry switches */
2
3 /*
4 * Copyright (C) 2003-2006 IBM
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of the
9 * License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
19 * 02111-1307, USA.
20 */
21
22 #include <unistd.h>
23 #include <limits.h>
24 #include <fcntl.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27
seed_random(void)28 int seed_random(void)
29 {
30 int fp;
31 long seed;
32
33 fp = open("/dev/urandom", O_RDONLY);
34 if (fp < 0) {
35 perror("/dev/urandom");
36 return 0;
37 }
38
39 if (read(fp, &seed, sizeof(seed)) != sizeof(seed)) {
40 perror("read random seed");
41 return 0;
42 }
43
44 close(fp);
45 srand(seed);
46
47 return 1;
48 }
49
main(int argc,char * argv[])50 int main(int argc, char *argv[])
51 {
52 unsigned long xmax, ymax;
53 unsigned long x, y;
54
55 if (argc < 3) {
56 fprintf(stderr, "Usage: %s xmax ymax\n", argv[0]);
57 return 2;
58 }
59
60 xmax = atoi(argv[1]);
61 ymax = atoi(argv[2]);
62
63 if (!seed_random()) {
64 return 1;
65 }
66
67 x = 1 + (unsigned long)((float)xmax * (rand() / (RAND_MAX + 1.0f)));
68 y = 1 + (unsigned long)((float)ymax * (rand() / (RAND_MAX + 1.0f)));
69
70 printf("+%lu+%lu\n", x, y);
71
72 return 0;
73 }
74