mirror of
git://git.suckless.org/ubase
synced 2024-12-26 00:32:58 +00:00
47 lines
823 B
C
47 lines
823 B
C
/* See LICENSE file for copyright and license details. */
|
|
#include <sys/param.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/msgbuf.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
int
|
|
syslog_size(void)
|
|
{
|
|
int mib[2], msgbufsize;
|
|
size_t len;
|
|
int ret;
|
|
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_MSGBUFSIZE;
|
|
len = sizeof(msgbufsize);
|
|
ret = sysctl(mib, 2, &msgbufsize, &len, NULL, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
msgbufsize += sizeof(struct msgbuf) - 1;
|
|
return msgbufsize;
|
|
}
|
|
|
|
int
|
|
syslog_read(void *buf, size_t n)
|
|
{
|
|
int mib[2];
|
|
int ret;
|
|
|
|
memset(buf, 0, n);
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_MSGBUF;
|
|
ret = sysctl(mib, 2, buf, &n, NULL, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
memmove(buf, ((struct msgbuf *)buf)->msg_bufc, n);
|
|
return n;
|
|
}
|
|
|
|
int
|
|
syslog_show(int fd, const void *buf, size_t n)
|
|
{
|
|
return write(fd, buf, n);
|
|
}
|