1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/*
* calmwm - the calm window manager
*
* Copyright (c) 2004 Marius Aamodt Eriksen <marius@monkey.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $OpenBSD$
*/
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/wait.h>
#include <err.h>
#include <errno.h>
#include <getopt.h>
#include <locale.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "calmwm.h"
char **cwm_argv;
Display *X_Dpy;
Cursor Cursor_default;
Cursor Cursor_move;
Cursor Cursor_normal;
Cursor Cursor_question;
Cursor Cursor_resize;
struct screen_ctx_q Screenq = TAILQ_HEAD_INITIALIZER(Screenq);
struct client_ctx_q Clientq = TAILQ_HEAD_INITIALIZER(Clientq);
int HasRandr, Randr_ev;
struct conf Conf;
char *homedir;
static void sigchld_cb(int);
static void dpy_init(const char *);
static int x_errorhandler(Display *, XErrorEvent *);
static int x_wmerrorhandler(Display *, XErrorEvent *);
static void x_setup(void);
static void x_teardown(void);
int
main(int argc, char **argv)
{
const char *conf_file = NULL;
char *conf_path, *display_name = NULL;
int ch;
struct passwd *pw;
if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
warnx("no locale support");
mbtowc(NULL, NULL, MB_CUR_MAX);
cwm_argv = argv;
while ((ch = getopt(argc, argv, "c:d:")) != -1) {
switch (ch) {
case 'c':
conf_file = optarg;
break;
case 'd':
display_name = optarg;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (signal(SIGCHLD, sigchld_cb) == SIG_ERR)
err(1, "signal");
if ((homedir = getenv("HOME")) == NULL || *homedir == '\0') {
pw = getpwuid(getuid());
if (pw != NULL && pw->pw_dir != NULL && *pw->pw_dir != '\0')
homedir = pw->pw_dir;
else
homedir = "/";
}
if (conf_file == NULL)
xasprintf(&conf_path, "%s/%s", homedir, CONFFILE);
else
conf_path = xstrdup(conf_file);
if (access(conf_path, R_OK) != 0) {
if (conf_file != NULL)
warn("%s", conf_file);
free(conf_path);
conf_path = NULL;
}
dpy_init(display_name);
conf_init(&Conf);
if (conf_path && (parse_config(conf_path, &Conf) == -1))
warnx("config file %s has errors, not loading", conf_path);
free(conf_path);
xu_getatoms();
x_setup();
xev_loop();
x_teardown();
return (0);
}
static void
dpy_init(const char *dpyname)
{
int i;
XSetErrorHandler(x_errorhandler);
if ((X_Dpy = XOpenDisplay(dpyname)) == NULL)
errx(1, "unable to open display \"%s\"",
XDisplayName(dpyname));
XSetErrorHandler(x_wmerrorhandler);
XSelectInput(X_Dpy, DefaultRootWindow(X_Dpy), SubstructureRedirectMask);
XSync(X_Dpy, False);
XSetErrorHandler(x_errorhandler);
HasRandr = XRRQueryExtension(X_Dpy, &Randr_ev, &i);
}
static void
x_setup(void)
{
struct screen_ctx *sc;
struct keybinding *kb;
int i;
Cursor_default = XCreateFontCursor(X_Dpy, XC_X_cursor);
Cursor_move = XCreateFontCursor(X_Dpy, XC_fleur);
Cursor_normal = XCreateFontCursor(X_Dpy, XC_left_ptr);
Cursor_question = XCreateFontCursor(X_Dpy, XC_question_arrow);
Cursor_resize = XCreateFontCursor(X_Dpy, XC_bottom_right_corner);
for (i = 0; i < ScreenCount(X_Dpy); i++) {
sc = xcalloc(1, sizeof(*sc));
screen_init(sc, i);
TAILQ_INSERT_TAIL(&Screenq, sc, entry);
}
/*
* XXX key grabs weren't done before, since Screenq was empty,
* do them here for now (this needs changing).
*/
TAILQ_FOREACH(kb, &Conf.keybindingq, entry)
conf_grab(&Conf, kb);
}
static void
x_teardown(void)
{
XCloseDisplay(X_Dpy);
}
static int
x_wmerrorhandler(Display *dpy, XErrorEvent *e)
{
errx(1, "root window unavailable - perhaps another wm is running?");
return (0);
}
static int
x_errorhandler(Display *dpy, XErrorEvent *e)
{
#if DEBUG
char msg[80], number[80], req[80];
XGetErrorText(X_Dpy, e->error_code, msg, sizeof(msg));
(void)snprintf(number, sizeof(number), "%d", e->request_code);
XGetErrorDatabaseText(X_Dpy, "XRequest", number,
"<unknown>", req, sizeof(req));
warnx("%s(0x%x): %s", req, (u_int)e->resourceid, msg);
#endif
return (0);
}
static void
sigchld_cb(int which)
{
pid_t pid;
int save_errno = errno;
int status;
/* Collect dead children. */
while ((pid = waitpid(-1, &status, WNOHANG)) > 0 ||
(pid < 0 && errno == EINTR))
;
errno = save_errno;
}
__dead void
usage(void)
{
extern char *__progname;
(void)fprintf(stderr, "usage: %s [-c file] [-d display]\n",
__progname);
exit(1);
}
|
