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Viewing changes to sys-utils/rtcwake.c

  • Committer: Package Import Robot
  • Author(s): LaMont Jones
  • Date: 2011-11-03 15:38:23 UTC
  • mto: (4.5.5 sid) (1.6.4)
  • mto: This revision was merged to the branch mainline in revision 85.
  • Revision ID: package-import@ubuntu.com-20111103153823-10sx16jprzxlhkqf
Import upstream version 2.20.1

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sys-utils/rtcwake.c
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#include <unistd.h>
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#include <errno.h>
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#include <time.h>
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#include <err.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include "pathnames.h"
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#include "usleep.h"
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#include "strutils.h"
 
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#include "c.h"
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/* constants from legacy PC/AT hardware */
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#define RTC_PF  0x40
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static void __attribute__((__noreturn__)) usage(FILE *out)
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{
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        fprintf(out, _("Usage: %s [options]\n\nOptions:\n"),
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                                program_invocation_short_name);
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        fprintf(out, _(
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                "    -d | --device <device>    select rtc device (rtc0|rtc1|...)\n"
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                "    -n | --dry-run            does everything, but suspend\n"
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                "    -l | --local              RTC uses local timezone\n"
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                "    -m | --mode <mode>        standby|mem|... sleep mode\n"
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                "    -s | --seconds <seconds>  seconds to sleep\n"
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                "    -t | --time <time_t>      time to wake\n"
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                "    -u | --utc                RTC uses UTC\n"
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                "    -v | --verbose            verbose messages\n"
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                "    -V | --version            show version\n"));
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        fprintf(out, _("\nFor more information see rtcwake(8).\n"));
 
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        fputs(_("\nUsage:\n"), out);
 
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        fprintf(out,
 
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              _(" %s [options]\n"), program_invocation_short_name);
 
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        fputs(_("\nOptions:\n"), out);
 
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        fputs(_(" -d, --device <device>    select rtc device (rtc0|rtc1|...)\n"
 
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                " -n, --dry-run            does everything, but suspend\n"
 
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                " -l, --local              RTC uses local timezone\n"
 
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                " -m, --mode <mode>        standby|mem|... sleep mode\n"
 
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                " -s, --seconds <seconds>  seconds to sleep\n"
 
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                " -t, --time <time_t>      time to wake\n"
 
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                " -u, --utc                RTC uses UTC\n"
 
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                " -v, --verbose            verbose messages\n"
 
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                " -V, --version            show version\n"), out);
 
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        fputs(_("\nFor more information see rtcwake(8).\n"), out);
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        exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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        return 0;
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}
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static int is_suspend_available(const char *suspend)
 
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{
 
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        int rc;
 
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        char buf[32];
 
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        FILE *f = fopen(SYS_POWER_STATE_PATH, "r");
 
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        if (!f)
 
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                return -1;
 
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        if (fgets(buf, sizeof buf, f) == NULL)
 
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                rc = -1;
 
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        else
 
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                rc = strstr(buf, suspend) != NULL;
 
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        fclose(f);
 
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        return rc;
 
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}
 
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static void suspend_system(const char *suspend)
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{
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        FILE    *f = fopen(SYS_POWER_STATE_PATH, "w");
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                        break;
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                case 'd':
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                        devname = strdup(optarg);
 
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                        devname = optarg;
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                        break;
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                case 'l':
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                                        || strcmp(optarg, "disable") == 0
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                                        || strcmp(optarg, "show") == 0
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                           ) {
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                                suspend = strdup(optarg);
 
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                                suspend = optarg;
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                                break;
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                        }
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                strcpy(new_devname, "/dev/");
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                strcat(new_devname, devname);
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                free(devname);
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                devname = new_devname;
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        }
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                                alarm, sys_time, rtc_time, seconds);
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        if (strcmp(suspend, "show") && strcmp(suspend, "disable")) {
 
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                if (strcmp(suspend, "no") && strcmp(suspend, "on") &&
 
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                    strcmp(suspend, "off") && is_suspend_available(suspend) <= 0) {
 
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                        errx(EXIT_FAILURE, _("suspend to \"%s\" unavailable"), suspend);
 
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                }
 
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                /* care about alarm setup only if the show|disable
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                 * modes are not set
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                 */