diff options
Diffstat (limited to 'sys-utils/rtcwake.c')
| -rw-r--r-- | sys-utils/rtcwake.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sys-utils/rtcwake.c b/sys-utils/rtcwake.c index 20e40a07f..b63c64627 100644 --- a/sys-utils/rtcwake.c +++ b/sys-utils/rtcwake.c @@ -23,12 +23,14 @@ #include <fcntl.h> #include <getopt.h> #include <linux/rtc.h> +#include <poll.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/ioctl.h> #include <sys/time.h> #include <sys/types.h> +#include <termios.h> #include <time.h> #include <unistd.h> @@ -260,6 +262,22 @@ nothing: return NULL; } +static void wait_stdin(struct rtcwake_control *ctl) +{ + struct pollfd fd[] = { + {.fd = STDIN_FILENO, .events = POLLIN} + }; + int tries = 0; + + while (tries < 8 && poll(fd, 1, 10) == 1) { + if (ctl->verbose) + warnx(_("discarding stdin")); + xusleep(250000); + tcflush(STDIN_FILENO, TCIFLUSH); + tries++; + } +} + static void suspend_system(struct rtcwake_control *ctl) { FILE *f = fopen(SYS_POWER_STATE_PATH, "w"); @@ -270,6 +288,8 @@ static void suspend_system(struct rtcwake_control *ctl) } if (!ctl->dryrun) { + if (isatty(STDIN_FILENO)) + wait_stdin(ctl); fprintf(f, "%s\n", ctl->mode_str); fflush(f); } |