102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
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/*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you
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* can do whatever you want with this stuff. If we meet some day, and you think
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* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
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* ----------------------------------------------------------------------------
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*
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* $FreeBSD$
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <err.h>
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#include <sys/ioctl.h>
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#include <sys/param.h>
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#include <sys/mdioctl.h>
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struct md_ioctl mdio;
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enum {UNSET, ATTACH, DETACH} action = UNSET;
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int
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main(int argc, char **argv)
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{
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int ch, fd, i;
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mdio.md_options = MD_CLUSTER | MD_AUTOUNIT;
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for (;;) {
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ch = getopt(argc, argv, "adf:o:s:t:u:");
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if (ch == -1)
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break;
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switch (ch) {
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case 'a':
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action = ATTACH;
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break;
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case 'd':
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action = DETACH;
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break;
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case 'f':
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strncpy(mdio.md_file, optarg, sizeof(mdio.md_file) - 1);
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break;
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case 'o':
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if (!strcmp(optarg, "cluster"))
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mdio.md_options |= MD_CLUSTER;
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else if (!strcmp(optarg, "nocluster"))
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mdio.md_options &= ~MD_CLUSTER;
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else if (!strcmp(optarg, "reserve"))
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mdio.md_options |= MD_RESERVE;
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else if (!strcmp(optarg, "noreserve"))
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mdio.md_options &= ~MD_RESERVE;
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else if (!strcmp(optarg, "autounit"))
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mdio.md_options |= MD_AUTOUNIT;
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else if (!strcmp(optarg, "noautounit"))
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mdio.md_options &= ~MD_AUTOUNIT;
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else
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errx(1, "Unknown option.");
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break;
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case 's':
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mdio.md_size = strtoul(optarg, NULL, 0);
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break;
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case 't':
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if (!strcmp(optarg, "malloc"))
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mdio.md_type = MD_MALLOC;
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else if (!strcmp(optarg, "preload"))
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mdio.md_type = MD_PRELOAD;
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else if (!strcmp(optarg, "vnode"))
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mdio.md_type = MD_VNODE;
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else if (!strcmp(optarg, "swap"))
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mdio.md_type = MD_SWAP;
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else
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errx(1, "Unknown type.");
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break;
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case 'u':
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mdio.md_unit = strtoul(optarg, NULL, 0);
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mdio.md_options &= ~MD_AUTOUNIT;
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break;
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default:
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errx(1, "Usage: %s [-ad] [-f file] [-o option] [-s size] [-t type ] [-u unit].", argv[0]);
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}
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}
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fd = open("/dev/mdctl", O_RDWR, 0);
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if (fd < 0)
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err(1, "/dev/mdctl");
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if (action == ATTACH)
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i = ioctl(fd, MDIOCATTACH, &mdio);
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else if (action == DETACH)
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i = ioctl(fd, MDIOCDETACH, &mdio);
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else
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errx(1, "Neither -a(ttach) nor -d(etach) options present.");
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if (i < 0)
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err(1, "ioctl(/dev/mdctl)");
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return (0);
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}
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