File: | src/usr.sbin/apm/apm.c |
Warning: | line 122, column 6 Branch condition evaluates to a garbage value |
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1 | /* $OpenBSD: apm.c,v 1.38 2021/04/06 20:30:32 kn Exp $ */ | |||
2 | ||||
3 | /* | |||
4 | * Copyright (c) 1996 John T. Kohl | |||
5 | * All rights reserved. | |||
6 | * | |||
7 | * Redistribution and use in source and binary forms, with or without | |||
8 | * modification, are permitted provided that the following conditions | |||
9 | * are met: | |||
10 | * 1. Redistributions of source code must retain the above copyright | |||
11 | * notice, this list of conditions and the following disclaimer. | |||
12 | * 2. Redistributions in binary form must reproduce the above copyright | |||
13 | * notice, this list of conditions and the following disclaimer in the | |||
14 | * documentation and/or other materials provided with the distribution. | |||
15 | * 3. The name of the author may not be used to endorse or promote products | |||
16 | * derived from this software without specific prior written permission. | |||
17 | * | |||
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR | |||
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |||
20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |||
21 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, | |||
22 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |||
23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |||
24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||
25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |||
26 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | |||
27 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |||
28 | * POSSIBILITY OF SUCH DAMAGE. | |||
29 | * | |||
30 | */ | |||
31 | ||||
32 | #include <sys/types.h> | |||
33 | #include <sys/sysctl.h> | |||
34 | #include <sys/socket.h> | |||
35 | #include <sys/un.h> | |||
36 | #include <sys/ioctl.h> | |||
37 | #include <machine/apmvar.h> | |||
38 | #include <stdio.h> | |||
39 | #include <stdlib.h> | |||
40 | #include <unistd.h> | |||
41 | #include <fcntl.h> | |||
42 | #include <errno(*__errno()).h> | |||
43 | #include <err.h> | |||
44 | #include <string.h> | |||
45 | #include "pathnames.h" | |||
46 | #include "apm-proto.h" | |||
47 | ||||
48 | #define FALSE0 0 | |||
49 | #define TRUE1 1 | |||
50 | ||||
51 | extern char *__progname; | |||
52 | ||||
53 | static int do_zzz(int, enum apm_action); | |||
54 | static int open_socket(const char *); | |||
55 | static int send_command(int, struct apm_command *, | |||
56 | struct apm_reply *); | |||
57 | static __dead__attribute__((__noreturn__)) void usage(void); | |||
58 | static __dead__attribute__((__noreturn__)) void zzusage(void); | |||
59 | ||||
60 | static __dead__attribute__((__noreturn__)) void | |||
61 | usage(void) | |||
62 | { | |||
63 | fprintf(stderr(&__sF[2]),"usage: %s [-AabHLlmPSvZz] [-f sockname]\n", | |||
64 | __progname); | |||
65 | exit(1); | |||
66 | } | |||
67 | ||||
68 | static __dead__attribute__((__noreturn__)) void | |||
69 | zzusage(void) | |||
70 | { | |||
71 | fprintf(stderr(&__sF[2]),"usage: %s [-SZz] [-f sockname]\n", | |||
72 | __progname); | |||
73 | exit(1); | |||
74 | } | |||
75 | ||||
76 | static int | |||
77 | send_command(int fd, struct apm_command *cmd, struct apm_reply *reply) | |||
78 | { | |||
79 | /* send a command to the apm daemon */ | |||
80 | cmd->vno = APMD_VNO4; | |||
81 | ||||
82 | if (send(fd, cmd, sizeof(*cmd), 0) == sizeof(*cmd)) { | |||
83 | if (recv(fd, reply, sizeof(*reply), 0) != sizeof(*reply)) { | |||
84 | warn("invalid reply from APM daemon"); | |||
85 | return (1); | |||
86 | } | |||
87 | } else { | |||
88 | warn("invalid send to APM daemon"); | |||
89 | return (1); | |||
90 | } | |||
91 | return (0); | |||
92 | } | |||
93 | ||||
94 | static int | |||
95 | do_zzz(int fd, enum apm_action action) | |||
96 | { | |||
97 | struct apm_command command; | |||
98 | struct apm_reply reply; | |||
99 | char *msg; | |||
100 | int ret; | |||
101 | ||||
102 | switch (action) { | |||
103 | case NONE: | |||
104 | case SUSPEND: | |||
105 | command.action = SUSPEND; | |||
106 | msg = "Suspending system"; | |||
107 | break; | |||
108 | case STANDBY: | |||
109 | command.action = STANDBY; | |||
110 | msg = "System standing by"; | |||
111 | break; | |||
112 | case HIBERNATE: | |||
113 | command.action = HIBERNATE; | |||
114 | msg = "Hibernating system"; | |||
115 | break; | |||
116 | default: | |||
117 | zzusage(); | |||
118 | } | |||
119 | ||||
120 | printf("%s...\n", msg); | |||
121 | ret = send_command(fd, &command, &reply); | |||
122 | if (reply.error) | |||
| ||||
123 | errx(1, "%s: %s", apm_state(reply.newstate), strerror(reply.error)); | |||
124 | exit(ret); | |||
125 | } | |||
126 | ||||
127 | static int | |||
128 | open_socket(const char *sockname) | |||
129 | { | |||
130 | int sock, errr; | |||
131 | struct sockaddr_un s_un; | |||
132 | ||||
133 | sock = socket(AF_UNIX1, SOCK_STREAM1, 0); | |||
134 | if (sock == -1) | |||
135 | err(1, "cannot create local socket"); | |||
136 | ||||
137 | s_un.sun_family = AF_UNIX1; | |||
138 | strlcpy(s_un.sun_path, sockname, sizeof(s_un.sun_path)); | |||
139 | if (connect(sock, (struct sockaddr *)&s_un, sizeof(s_un)) == -1) { | |||
140 | errr = errno(*__errno()); | |||
141 | close(sock); | |||
142 | errno(*__errno()) = errr; | |||
143 | sock = -1; | |||
144 | } | |||
145 | return (sock); | |||
146 | } | |||
147 | ||||
148 | int | |||
149 | main(int argc, char *argv[]) | |||
150 | { | |||
151 | const char *sockname = _PATH_APM_SOCKET"/var/run/apmdev"; | |||
152 | int doac = FALSE0; | |||
153 | int dopct = FALSE0; | |||
154 | int dobstate = FALSE0; | |||
155 | int domin = FALSE0; | |||
156 | int doperf = FALSE0; | |||
157 | int verbose = FALSE0; | |||
158 | int ch, fd, rval; | |||
159 | enum apm_action action = NONE; | |||
160 | struct apm_command command; | |||
161 | struct apm_reply reply; | |||
162 | int cpuspeed_mib[] = { CTL_HW6, HW_CPUSPEED12 }, cpuspeed; | |||
163 | size_t cpuspeed_sz = sizeof(cpuspeed); | |||
164 | ||||
165 | if (sysctl(cpuspeed_mib, 2, &cpuspeed, &cpuspeed_sz, NULL((void *)0), 0) == -1) | |||
| ||||
166 | err(1, "sysctl hw.cpuspeed"); | |||
167 | ||||
168 | while ((ch = getopt(argc, argv, "ACHLlmbvaPSzZf:")) != -1) { | |||
169 | switch (ch) { | |||
170 | case 'v': | |||
171 | verbose = TRUE1; | |||
172 | break; | |||
173 | case 'f': | |||
174 | sockname = optarg; | |||
175 | break; | |||
176 | case 'z': | |||
177 | if (action != NONE) | |||
178 | usage(); | |||
179 | action = SUSPEND; | |||
180 | break; | |||
181 | case 'S': | |||
182 | if (action != NONE) | |||
183 | usage(); | |||
184 | action = STANDBY; | |||
185 | break; | |||
186 | case 'Z': | |||
187 | if (action != NONE) | |||
188 | usage(); | |||
189 | action = HIBERNATE; | |||
190 | break; | |||
191 | case 'A': | |||
192 | case 'C': | |||
193 | if (action != NONE) | |||
194 | usage(); | |||
195 | action = SETPERF_AUTO; | |||
196 | break; | |||
197 | case 'H': | |||
198 | if (action != NONE) | |||
199 | usage(); | |||
200 | action = SETPERF_HIGH; | |||
201 | break; | |||
202 | case 'L': | |||
203 | if (action != NONE) | |||
204 | usage(); | |||
205 | action = SETPERF_LOW; | |||
206 | break; | |||
207 | case 'b': | |||
208 | if (action != NONE && action != GETSTATUS) | |||
209 | usage(); | |||
210 | dobstate = TRUE1; | |||
211 | action = GETSTATUS; | |||
212 | break; | |||
213 | case 'l': | |||
214 | if (action != NONE && action != GETSTATUS) | |||
215 | usage(); | |||
216 | dopct = TRUE1; | |||
217 | action = GETSTATUS; | |||
218 | break; | |||
219 | case 'm': | |||
220 | if (action != NONE && action != GETSTATUS) | |||
221 | usage(); | |||
222 | domin = TRUE1; | |||
223 | action = GETSTATUS; | |||
224 | break; | |||
225 | case 'a': | |||
226 | if (action != NONE && action != GETSTATUS) | |||
227 | usage(); | |||
228 | doac = TRUE1; | |||
229 | action = GETSTATUS; | |||
230 | break; | |||
231 | case 'P': | |||
232 | if (action != NONE && action != GETSTATUS) | |||
233 | usage(); | |||
234 | doperf = TRUE1; | |||
235 | action = GETSTATUS; | |||
236 | break; | |||
237 | default: | |||
238 | if (!strcmp(__progname, "zzz") || | |||
239 | !strcmp(__progname, "ZZZ")) | |||
240 | zzusage(); | |||
241 | else | |||
242 | usage(); | |||
243 | } | |||
244 | } | |||
245 | argc -= optind; | |||
246 | argv += optind; | |||
247 | if (argc) | |||
248 | usage(); | |||
249 | ||||
250 | fd = open_socket(sockname); | |||
251 | ||||
252 | if (fd != -1) { | |||
253 | if (pledge("stdio", NULL((void *)0)) == -1) | |||
254 | err(1, "pledge"); | |||
255 | } | |||
256 | ||||
257 | if (!strcmp(__progname, "zzz")) { | |||
258 | if (fd < 0) | |||
259 | err(1, "cannot connect to apmd"); | |||
260 | else | |||
261 | return (do_zzz(fd, action)); | |||
262 | } else if (!strcmp(__progname, "ZZZ")) { | |||
263 | if (fd < 0) | |||
264 | err(1, "cannot connect to apmd"); | |||
265 | else | |||
266 | return (do_zzz(fd, HIBERNATE)); | |||
267 | } | |||
268 | ||||
269 | ||||
270 | bzero(&reply, sizeof reply); | |||
271 | reply.batterystate.battery_state = APM_BATT_UNKNOWN0xff; | |||
272 | reply.batterystate.ac_state = APM_AC_UNKNOWN0xff; | |||
273 | reply.perfmode = PERF_MANUAL; | |||
274 | reply.cpuspeed = cpuspeed; | |||
275 | ||||
276 | switch (action) { | |||
277 | case SETPERF_LOW: | |||
278 | case SETPERF_HIGH: | |||
279 | case SETPERF_AUTO: | |||
280 | if (fd == -1) | |||
281 | errx(1, "cannot connect to apmd, " | |||
282 | "not changing performance adjustment mode"); | |||
283 | goto balony; | |||
284 | case NONE: | |||
285 | action = GETSTATUS; | |||
286 | verbose = doac = dopct = dobstate = domin = doperf = TRUE1; | |||
287 | /* FALLTHROUGH */ | |||
288 | case GETSTATUS: | |||
289 | if (fd == -1) { | |||
290 | /* open the device directly and get status */ | |||
291 | fd = open(_PATH_APM_NORMAL"/dev/apm", O_RDONLY0x0000); | |||
292 | if (ioctl(fd, APM_IOC_GETPOWER((unsigned long)0x40000000 | ((sizeof(struct apm_power_info) & 0x1fff) << 16) | ((('A')) << 8) | ((3))), | |||
293 | &reply.batterystate) == 0) { | |||
294 | if (pledge("stdio", NULL((void *)0)) == -1) | |||
295 | err(1, "pledge"); | |||
296 | ||||
297 | goto printval; | |||
298 | } | |||
299 | } | |||
300 | /* FALLTHROUGH */ | |||
301 | balony: | |||
302 | case SUSPEND: | |||
303 | case STANDBY: | |||
304 | case HIBERNATE: | |||
305 | command.action = action; | |||
306 | break; | |||
307 | default: | |||
308 | usage(); | |||
309 | } | |||
310 | ||||
311 | if (fd != -1 && (rval = send_command(fd, &command, &reply)) != 0) | |||
312 | errx(rval, "cannot get reply from APM daemon"); | |||
313 | ||||
314 | switch (action) { | |||
315 | case GETSTATUS: | |||
316 | printval: | |||
317 | if (!verbose) { | |||
318 | if (dobstate) | |||
319 | printf("%d\n", | |||
320 | reply.batterystate.battery_state); | |||
321 | if (dopct) | |||
322 | printf("%d\n", | |||
323 | reply.batterystate.battery_life); | |||
324 | if (domin) { | |||
325 | if (reply.batterystate.minutes_left == | |||
326 | (u_int)-1) | |||
327 | printf("unknown\n"); | |||
328 | else | |||
329 | printf("%d\n", | |||
330 | reply.batterystate.minutes_left); | |||
331 | } | |||
332 | if (doac) | |||
333 | printf("%d\n", | |||
334 | reply.batterystate.ac_state); | |||
335 | if (doperf) | |||
336 | printf("%d\n", reply.perfmode); | |||
337 | break; | |||
338 | } | |||
339 | ||||
340 | if (dobstate) { | |||
341 | printf("Battery state: %s", | |||
342 | battstate(reply.batterystate.battery_state)); | |||
343 | if (!dopct && !domin) | |||
344 | printf("\n"); | |||
345 | } | |||
346 | ||||
347 | if (dopct && !dobstate) | |||
348 | printf("Battery remaining: %d percent", | |||
349 | reply.batterystate.battery_life); | |||
350 | else if (dopct) | |||
351 | printf(", %d%% remaining", | |||
352 | reply.batterystate.battery_life); | |||
353 | if (dopct && !domin) | |||
354 | printf("\n"); | |||
355 | ||||
356 | if (domin && !dobstate && !dopct) { | |||
357 | #ifdef __powerpc__ | |||
358 | if (reply.batterystate.battery_state == | |||
359 | APM_BATT_CHARGING0x03) | |||
360 | printf("Remaining battery recharge " | |||
361 | "time estimate: %d minutes\n", | |||
362 | reply.batterystate.minutes_left); | |||
363 | else if (reply.batterystate.minutes_left == 0 && | |||
364 | reply.batterystate.battery_life > 10) | |||
365 | printf("Battery life estimate: " | |||
366 | "not available\n"); | |||
367 | else | |||
368 | #endif | |||
369 | { | |||
370 | printf("Battery life estimate: "); | |||
371 | if (reply.batterystate.minutes_left == | |||
372 | (u_int)-1) | |||
373 | printf("unknown\n"); | |||
374 | else | |||
375 | printf("%d minutes\n", | |||
376 | reply.batterystate.minutes_left); | |||
377 | } | |||
378 | } else if (domin) { | |||
379 | #ifdef __powerpc__ | |||
380 | if (reply.batterystate.battery_state == | |||
381 | APM_BATT_CHARGING0x03) | |||
382 | printf(", %d minutes recharge time estimate\n", | |||
383 | reply.batterystate.minutes_left); | |||
384 | else if (reply.batterystate.minutes_left == 0 && | |||
385 | reply.batterystate.battery_life > 10) | |||
386 | printf(", unknown life estimate\n"); | |||
387 | else | |||
388 | #endif | |||
389 | { | |||
390 | if (reply.batterystate.minutes_left == | |||
391 | (u_int)-1) | |||
392 | printf(", unknown"); | |||
393 | else | |||
394 | printf(", %d minutes", | |||
395 | reply.batterystate.minutes_left); | |||
396 | printf(" life estimate\n"); | |||
397 | } | |||
398 | } | |||
399 | ||||
400 | if (doac) | |||
401 | printf("A/C adapter state: %s\n", | |||
402 | ac_state(reply.batterystate.ac_state)); | |||
403 | ||||
404 | if (doperf) | |||
405 | printf("Performance adjustment mode: %s (%d MHz)\n", | |||
406 | perf_mode(reply.perfmode), reply.cpuspeed); | |||
407 | break; | |||
408 | default: | |||
409 | break; | |||
410 | } | |||
411 | ||||
412 | switch (reply.newstate) { | |||
413 | case SUSPEND: | |||
414 | printf("System will enter suspend mode momentarily.\n"); | |||
415 | break; | |||
416 | case STANDBY: | |||
417 | printf("System will enter standby mode momentarily.\n"); | |||
418 | break; | |||
419 | case HIBERNATE: | |||
420 | printf("System will enter hibernate mode momentarily.\n"); | |||
421 | break; | |||
422 | default: | |||
423 | break; | |||
424 | } | |||
425 | if (reply.error) | |||
426 | errx(1, "%s: %s", apm_state(reply.newstate), strerror(reply.error)); | |||
427 | return (0); | |||
428 | } |