[LTP] [PATCH 1/3] testcases/kernel/syscalls/ioctl: Add test for RTC ioctls used to read and set RTC time

[Filip Bozuta]

This patch tests functionalities of following ioctls:

RTC_RD_TIME - Getting RTC time

    Returns this RTC's time in the following structure:

        struct rtc_time {
            int tm_sec;
            int tm_min;
            int tm_hour;
            int tm_mday;
            int tm_mon;
            int tm_year;
            int tm_wday;     /* unused */
            int tm_yday;     /* unused */
            int tm_isdst;    /* unused */
        };

    The fields in this structure have the same meaning and
    ranges as the tm structure described in gmtime man page.
    A pointer to this structure should be passed as the third
    ioctl argument.

RTC_SET_TIME - Setting RTC time

    Sets this RTC's time to the time specified by the rtc_time
    structure pointed to by the third ioctl argument. To set the
    RTC's time the process must be privileged (i.e., have the
    CAP_SYS_TIME capability).

Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
---
 runtest/syscalls                              |   2 +
 testcases/kernel/syscalls/ioctl/.gitignore    |   1 +
 testcases/kernel/syscalls/ioctl/ioctl_rtc01.c | 112 ++++++++++++++++++
 3 files changed, 115 insertions(+)
 create mode 100644 testcases/kernel/syscalls/ioctl/ioctl_rtc01.c

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