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efiwake(8): style

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Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2023-04-28 05:58:01 +03:00
parent 1808b5577d
commit cae85a647a
1 changed files with 23 additions and 17 deletions
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40
usr.sbin/efiwake/efiwake.c
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@ -25,33 +25,36 @@
* SUCH DAMAGE.
*/
#include <sys/efiio.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include <sys/efiio.h>
static void usage(void)
static void
usage(void)
{
printf("Usage:\n"
" efiwake -- print out current EFI time and wake time\n"
fprintf(stderr, "Usage:\n"
" efiwake -- print out current "
"EFI time and wake time\n"
" efiwake -d -- disable wake time\n"
" efiwake -e yyyy-mm-ddThh:mm:ss -- enable wake time\n"
);
exit(EX_USAGE);
}
int main(int argc, char **argv)
int
main(int argc, char **argv)
{
struct efi_tm now;
struct efi_waketime_ioc waketime;
int error, ch;
bool enable = false, disable = false;
int ch, error, efi_fd;
bool disable = false, enable = false;
memset(&waketime, 0, sizeof(waketime));
@ -63,10 +66,12 @@ int main(int argc, char **argv)
case 'e':
if (sscanf(optarg,
"%hu-%02hhu-%02hhuT%02hhu:%02hhu:%02hhu",
&waketime.waketime.tm_year, &waketime.waketime.tm_mon,
&waketime.waketime.tm_mday, &waketime.waketime.tm_hour,
&waketime.waketime.tm_min, &waketime.waketime.tm_sec)
!= 6) {
&waketime.waketime.tm_year,
&waketime.waketime.tm_mon,
&waketime.waketime.tm_mday,
&waketime.waketime.tm_hour,
&waketime.waketime.tm_min,
&waketime.waketime.tm_sec) != 6) {
usage();
}
enable = true;
@ -84,11 +89,10 @@ int main(int argc, char **argv)
if (disable && enable)
usage();
int efi_fd = open("/dev/efi", O_RDWR);
efi_fd = open("/dev/efi", O_RDWR);
if (efi_fd < 0)
err(EX_OSERR, "cannot open /dev/efi");
struct efi_tm now;
error = ioctl(efi_fd, EFIIOC_GET_TIME, &now);
if (error != 0)
err(EX_OSERR, "cannot get EFI time");
@ -99,7 +103,8 @@ int main(int argc, char **argv)
now.tm_sec);
if (disable) {
/* It's tempting to preserve the current timer value.
/*
* It's tempting to preserve the current timer value.
* However, wonky EFI implementations sometimes return bogus
* dates for the wake timer and would then fail disabling it
* here.
@ -123,7 +128,8 @@ int main(int argc, char **argv)
if (error != 0)
err(EX_OSERR, "cannot get EFI wake time");
printf("EFI wake time: %u-%02u-%02uT%02u:%02u:%02u; enabled=%i, pending=%i\n",
printf("EFI wake time: %u-%02u-%02uT%02u:%02u:%02u; "
"enabled=%i, pending=%i\n",
waketime.waketime.tm_year, waketime.waketime.tm_mon,
waketime.waketime.tm_mday, waketime.waketime.tm_hour,
waketime.waketime.tm_min, waketime.waketime.tm_sec,