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SunOS 5.5 Devices log(7D)

ENXIO is returned for I_TRCLOG ioctls without any trace_ids structures, or for any

unrecognized ioctl calls. The driver silently ignores incorrectly formatted log messages

sent to the driver by a user process (no error results).

Processes that wish to write a message to the console logger may direct their output to

/dev/conslog, using either write(2) or putmsg(2).

EXAMPLES Example of I_ERRLOG registration:

struct strioctl ioc;

ioc.ic_cmd = I_ERRLOG;

ioc.ic_timout = 0; /∗ default timeout (15 secs.) ∗/

ioc.ic_len = 0;

ioc.ic_dp = NULL;

ioctl(log, I_STR, &ioc);

Example of I_TRCLOG registration:

struct trace_ids tid[2];

tid[0].ti_mid = 2;

tid[0].ti_sid = 0;

tid[0].ti_level = 1;

tid[1].ti_mid = 1002;

tid[1].ti_sid = −1; /∗ any sub-id will be allowed ∗/

tid[1].ti_level = −1; /∗ any level will be allowed ∗/

ioc.ic_cmd = I_TRCLOG;

ioc.ic_timout = 0;

ioc.ic_len = 2 ∗ sizeof(struct trace_ids);

ioc.ic_dp = (char ∗)tid;

ioctl(log, I_STR, &ioc);

Example of submitting a log message (no arguments):

struct strbuf ctl, dat;

struct log_ctl lc;

char ∗message = "Don’t forget to pick up some milk

on the way home";

ctl.len = ctl.maxlen = sizeof(lc);

ctl.buf = (char ∗)&lc;

dat.len = dat.maxlen = strlen(message);

modiﬁed 23 Feb 1994 7D-197

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