diff options
Diffstat (limited to 'sysdeps/freebsd/mountlist.c')
| -rw-r--r-- | sysdeps/freebsd/mountlist.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/sysdeps/freebsd/mountlist.c b/sysdeps/freebsd/mountlist.c new file mode 100644 index 00000000..1e33485f --- /dev/null +++ b/sysdeps/freebsd/mountlist.c @@ -0,0 +1,168 @@ +/* mountlist.c -- return a list of mounted filesystems + Copyright (C) 1991, 1992 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include <config.h> + +#include <glib.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/param.h> +#include <sys/mount.h> + +#include <string.h> + +#include <glibtop.h> +#include <glibtop/mountlist.h> + +/* A mount table entry. */ +struct mount_entry +{ + char *me_devname; /* Device node pathname, including "/dev/". */ + char *me_mountdir; /* Mount point directory pathname. */ + char *me_type; /* "nfs", "4.2", etc. */ + dev_t me_dev; /* Device number of me_mountdir. */ + struct mount_entry *me_next; +}; + +static struct mount_entry *read_filesystem_list (void); + +/* Return a list of the currently mounted filesystems, or NULL on error. + Add each entry to the tail of the list so that they stay in order. +*/ + +static struct mount_entry * +read_filesystem_list (void) +{ + struct mount_entry *mount_list; + struct mount_entry *me; + struct mount_entry *mtail; + + /* Start the list off with a dummy entry. */ + me = g_new (struct mount_entry, 1); + me->me_next = NULL; + mount_list = mtail = me; + { + struct statfs *fsp; + int entries; + + entries = getmntinfo (&fsp, MNT_NOWAIT); + if (entries < 0) + return NULL; + while (entries-- > 0) + { + me = (struct mount_entry *) g_malloc (sizeof (struct mount_entry)); + me->me_devname = g_strdup (fsp->f_mntfromname); + me->me_mountdir = g_strdup (fsp->f_mntonname); + me->me_type = g_strdup (fsp->f_fstypename); + me->me_dev = (dev_t) -1; /* Magic; means not known yet. */ + me->me_next = NULL; + + /* Add to the linked list. */ + mtail->me_next = me; + mtail = me; + fsp++; + } + } + + /* Free the dummy head. */ + me = mount_list; + mount_list = mount_list->me_next; + g_free (me); + return mount_list; +} + +static gboolean ignore_mount_entry(const struct mount_entry *me) +{ + /* keep sorted */ + static const char ignored[][17] = { + "autofs", + "devfs", + "fusectl", + "linprocfs", + "linsysfs", + "mfs", + "none", + "nfs", + "nullfs", + "nwfs", + "portalfs", + "proc", + "procfs", + "smbfs", + "tmpfs", + "unionfs", + "unknown" + }; + + typedef int (*Comparator)(const void*, const void*); + + return bsearch(me->me_type, + ignored, G_N_ELEMENTS(ignored), sizeof ignored[0], + (Comparator) strcmp) != NULL; +} + + +glibtop_mountentry * +glibtop_get_mountlist_s (glibtop *server, glibtop_mountlist *buf, int all_fs) +{ + struct mount_entry *entries, *cur, *next; + + GArray *mount_array = g_array_new(FALSE, FALSE, + sizeof(glibtop_mountentry)); + + glibtop_init_r (&server, 0, 0); + + memset (buf, 0, sizeof (glibtop_mountlist)); + + /* Read filesystem list. */ + + if((entries = read_filesystem_list ()) == NULL) + return NULL; + + for (cur = &entries[0]; cur != NULL; cur = next) { + + if(all_fs || !ignore_mount_entry(cur)) { + /* add a new glibtop_mountentry */ + glibtop_mountentry e; + + g_strlcpy(e.devname, cur->me_devname, sizeof e.devname); + g_strlcpy(e.mountdir, cur->me_mountdir, sizeof e.mountdir); + g_strlcpy(e.type, cur->me_type, sizeof e.type); + e.dev = cur->me_dev; + + g_array_append_val(mount_array, e); + } + + /* free current mount_entry and move to the next */ + next = cur->me_next; + g_free(cur->me_devname); + g_free(cur->me_mountdir); + g_free(cur->me_type); + g_free(cur); + } + + buf->size = sizeof (glibtop_mountentry); + buf->number = mount_array->len; + buf->total = buf->number * buf->size; + + buf->flags = (1 << GLIBTOP_MOUNTLIST_SIZE) + | (1 << GLIBTOP_MOUNTLIST_NUMBER) + | (1 << GLIBTOP_MOUNTLIST_TOTAL); + + return (glibtop_mountentry*) g_array_free(mount_array, FALSE); +} |