static void
swaplist(int lflag, int sflag, int hflag)
{
size_t mibsize, size;
struct xswdev xsw;
int hlen, mib[16], n, pagesize;
long blocksize;
long long total = 0;
long long used = 0;
long long tmp_total;
long long tmp_used;
char buf[32];
pagesize = getpagesize();
switch(hflag) {
case 'G':
blocksize = 1024 * 1024 * 1024;
strlcpy(buf, "1GB-blocks", sizeof(buf));
hlen = 10;
break;
case 'H':
blocksize = -1;
strlcpy(buf, "Bytes", sizeof(buf));
hlen = 10;
break;
case 'K':
blocksize = 1024;
strlcpy(buf, "1kB-blocks", sizeof(buf));
hlen = 10;
break;
case 'M':
blocksize = 1024 * 1024;
strlcpy(buf, "1MB-blocks", sizeof(buf));
hlen = 10;
break;
default:
getbsize(&hlen, &blocksize);
snprintf(buf, sizeof(buf), "%ld-blocks", blocksize);
break;
}
mibsize = sizeof mib / sizeof mib[0];
if (sysctlnametomib("vm.swap_info", mib, &mibsize) == -1)
err(1, "sysctlnametomib()");
if (lflag) {
printf("%-13s %*s %*s\n",
"Device:",
hlen, buf,
hlen, "Used:");
}
for (n = 0; ; ++n) {
mib[mibsize] = n;
size = sizeof xsw;
if (sysctl(mib, mibsize + 1, &xsw, &size, NULL, 0) == -1)
break;
if (xsw.xsw_version != XSWDEV_VERSION)
errx(1, "xswdev version mismatch");
tmp_total = (long long)xsw.xsw_nblks * pagesize;
tmp_used = (long long)xsw.xsw_used * pagesize;
total += tmp_total;
used += tmp_used;
if (lflag) {
sizetobuf(buf, sizeof(buf), hflag, tmp_total, hlen,
blocksize);
printf("/dev/%-8s %s ", devname(xsw.xsw_dev, S_IFCHR),
buf);
sizetobuf(buf, sizeof(buf), hflag, tmp_used, hlen,
blocksize);
printf("%s\n", buf);
}
}
if (errno != ENOENT)
err(1, "sysctl()");
if (sflag) {
sizetobuf(buf, sizeof(buf), hflag, total, hlen, blocksize);
printf("Total: %s ", buf);
sizetobuf(buf, sizeof(buf), hflag, used, hlen, blocksize);
printf("%s\n", buf);
}
}
static void
swaplist(int lflag, int sflag, int hflag)
{
size_t ksize, bytes = 0;
char *xswbuf;
struct xswdev *xsw;
int hlen, pagesize;
int i, n;
long blocksize;
long long total, used, tmp_total, tmp_used;
char buf[32];
pagesize = getpagesize();
switch(hflag) {
case 'G':
blocksize = 1024 * 1024 * 1024;
strlcpy(buf, "1GB-blocks", sizeof(buf));
hlen = 10;
break;
case 'H':
blocksize = -1;
strlcpy(buf, "Bytes", sizeof(buf));
hlen = 10;
break;
case 'K':
blocksize = 1024;
strlcpy(buf, "1kB-blocks", sizeof(buf));
hlen = 10;
break;
case 'M':
blocksize = 1024 * 1024;
strlcpy(buf, "1MB-blocks", sizeof(buf));
hlen = 10;
break;
default:
getbsize(&hlen, &blocksize);
snprintf(buf, sizeof(buf), "%ld-blocks", blocksize);
break;
}
if (sysctlbyname("vm.swap_info_array", NULL, &bytes, NULL, 0) < 0)
err(1, "sysctlbyname()");
if (bytes == 0)
err(1, "sysctlbyname()");
xswbuf = malloc(bytes);
if (sysctlbyname("vm.swap_info_array", xswbuf, &bytes, NULL, 0) < 0) {
free(xswbuf);
err(1, "sysctlbyname()");
}
if (bytes == 0) {
free(xswbuf);
err(1, "sysctlbyname()");
}
/*
* Calculate size of xsw entry returned by kernel (it can be larger
* than the one we have if there is a version mismatch).
*/
ksize = ((struct xswdev *)xswbuf)->xsw_size;
n = (int)(bytes / ksize);
if (lflag) {
printf("%-13s %*s %*s\n",
"Device:",
hlen, buf,
hlen, "Used:");
}
total = used = tmp_total = tmp_used = 0;
for (i = 0; i < n; ++i) {
xsw = (void *)((char *)xswbuf + i * ksize);
if (xsw->xsw_nblks == 0)
continue;
tmp_total = (long long)xsw->xsw_nblks * pagesize;
tmp_used = (long long)xsw->xsw_used * pagesize;
total += tmp_total;
used += tmp_used;
if (lflag) {
sizetobuf(buf, sizeof(buf), hflag, tmp_total, hlen,
blocksize);
if (xsw->xsw_dev == NODEV) {
printf("%-13s %s ", "[NFS swap]", buf);
} else {
printf("/dev/%-8s %s ",
devname(xsw->xsw_dev, S_IFCHR), buf);
}
sizetobuf(buf, sizeof(buf), hflag, tmp_used, hlen,
blocksize);
printf("%s\n", buf);
}
}
if (sflag) {
sizetobuf(buf, sizeof(buf), hflag, total, hlen, blocksize);
printf("Total: %s ", buf);
sizetobuf(buf, sizeof(buf), hflag, used, hlen, blocksize);
printf("%s\n", buf);
}
}