/* $NetBSD: preen.c,v 1.18 1998/07/26 20:02:36 mycroft Exp $ */ /* * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include #ifndef lint #if 0 static char sccsid[] = "@(#)preen.c 8.5 (Berkeley) 4/28/95"; #else __RCSID("$NetBSD: preen.c,v 1.18 1998/07/26 20:02:36 mycroft Exp $"); #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include "quotacheck.h" struct partentry { TAILQ_ENTRY(partentry) p_entries; char *p_devname; /* device name */ char *p_mntpt; /* mount point */ char *p_type; /* file system type */ struct quotaname *p_quota; /* quota file info ptr */ }; TAILQ_HEAD(part, partentry) badh; struct diskentry { TAILQ_ENTRY(diskentry) d_entries; char *d_name; /* disk base name */ TAILQ_HEAD(prt, partentry) d_part; /* list of partitions on disk */ int d_pid; /* 0 or pid of fsck proc */ }; TAILQ_HEAD(disk, diskentry) diskh; static struct diskentry *finddisk(const char *); static void addpart(const char *, const char *, const char *, struct quotaname *); static int startdisk(struct diskentry *); extern void *emalloc(size_t); extern char *estrdup(const char *); int checkfstab() { struct fstab *fs; struct diskentry *d, *nextdisk; struct partentry *p; int ret, pid, retcode, passno, sumstatus, status, nextpass; char *name; struct quotaname *qnp; TAILQ_INIT(&badh); TAILQ_INIT(&diskh); sumstatus = 0; nextpass = 0; for (passno = 1; nextpass != INT_MAX; passno = nextpass) { nextpass = INT_MAX; if (setfsent() == 0) { warnx("Can't open checklist file: %s\n", _PATH_FSTAB); return (8); } while ((fs = getfsent()) != 0) { name = fs->fs_spec; if (fs->fs_passno > passno && fs->fs_passno < nextpass) nextpass = fs->fs_passno; if (passno != fs->fs_passno) continue; if ((qnp = needchk(fs)) == NULL) continue; if (passno == 1) { sumstatus = chkquota(name, fs->fs_file, qnp); if (sumstatus) return (sumstatus); continue; } if (name == NULL) { (void) fprintf(stderr, "BAD DISK NAME %s\n", fs->fs_spec); sumstatus |= 8; continue; } addpart(fs->fs_vfstype, name, fs->fs_file, qnp); } if (passno == 1) continue; TAILQ_FOREACH(nextdisk, &diskh, d_entries) { if ((ret = startdisk(nextdisk)) != 0) return ret; } while ((pid = wait(&status)) != -1) { TAILQ_FOREACH(d, &diskh, d_entries) if (d->d_pid == pid) break; if (d == NULL) { warnx("Unknown pid %d\n", pid); continue; } if (WIFEXITED(status)) retcode = WEXITSTATUS(status); else retcode = 0; p = TAILQ_FIRST(&d->d_part); if (WIFSIGNALED(status)) { (void) fprintf(stderr, "%s: %s (%s): EXITED WITH SIGNAL %d\n", p->p_type, p->p_devname, p->p_mntpt, WTERMSIG(status)); retcode = 8; } TAILQ_REMOVE(&d->d_part, p, p_entries); if (retcode != 0) { TAILQ_INSERT_TAIL(&badh, p, p_entries); sumstatus |= retcode; } else { free(p->p_type); free(p->p_devname); free(p); } d->d_pid = 0; if (TAILQ_EMPTY(&d->d_part)) { TAILQ_REMOVE(&diskh, d, d_entries); } else { if ((ret = startdisk(d)) != 0) return ret; } } } if (sumstatus) { p = TAILQ_FIRST(&badh); if (p == NULL) return (sumstatus); (void) fprintf(stderr, "THE FOLLOWING FILE SYSTEM%s HAD AN %s\n\t", TAILQ_NEXT(p, p_entries) ? "S" : "", "UNEXPECTED INCONSISTENCY:"); for (; p; p = TAILQ_NEXT(p, p_entries)) (void) fprintf(stderr, "%s: %s (%s)%s", p->p_type, p->p_devname, p->p_mntpt, TAILQ_NEXT(p, p_entries) ? ", " : "\n"); return sumstatus; } (void) endfsent(); return (0); } static struct diskentry * finddisk(const char *name) { const char *p; size_t len = 0; struct diskentry *d; p = strrchr(name, '/'); if (p == NULL) p = name; else p++; for (; *p && !isdigit(*p); p++) continue; for (; *p && isdigit(*p); p++) continue; len = p - name; if (len == 0) len = strlen(name); TAILQ_FOREACH(d, &diskh, d_entries) if (strncmp(d->d_name, name, len) == 0 && d->d_name[len] == 0) return d; d = emalloc(sizeof(*d)); d->d_name = estrdup(name); d->d_name[len] = '\0'; TAILQ_INIT(&d->d_part); d->d_pid = 0; TAILQ_INSERT_TAIL(&diskh, d, d_entries); return d; } static void addpart(const char *type, const char *devname, const char *mntpt, struct quotaname *qnp) { struct diskentry *d = finddisk(devname); struct partentry *p; TAILQ_FOREACH(p, &d->d_part, p_entries) if (strcmp(p->p_devname, devname) == 0) { warnx("%s in fstab more than once!\n", devname); return; } p = emalloc(sizeof(*p)); p->p_devname = estrdup(devname); p->p_mntpt = estrdup(mntpt); p->p_type = estrdup(type); p->p_quota = qnp; TAILQ_INSERT_TAIL(&d->d_part, p, p_entries); } static int startdisk(struct diskentry *d) { struct partentry *p = TAILQ_FIRST(&d->d_part); d->d_pid = fork(); if (d->d_pid < 0) { perror("fork"); return (8); } if (d->d_pid == 0) exit(chkquota(p->p_devname, p->p_mntpt, p->p_quota)); return (0); }