| File: | src/usr.sbin/apm/apm.c |
| Warning: | line 246, column 2 Value stored to 'argv' is never read |
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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; |
Value stored to 'argv' is never read | |
| 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 | } |