#include <sys/param.h>
#include <sys/stat.h>
#include <sys/queue.h>
#ifdef __APPLE__
#include <sys/mount.h>
#endif
#include <sys/quota.h>
#include <fcntl.h>
#include <fstab.h>
#include <pwd.h>
#include <grp.h>
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <err.h>
#ifdef __APPLE__
#include <libkern/OSByteOrder.h>
#endif
#include "quotacheck.h"
char *qfname = QUOTAFILENAME;
char *qfextension[] = INITQFNAMES;
char *quotagroup = QUOTAGROUP;
#ifdef __APPLE__
u_int32_t quotamagic[MAXQUOTAS] = INITQMAGICS;
#endif
#define FUHASH 1024
struct fileusage *fuhead[MAXQUOTAS][FUHASH];
int aflag;
int gflag;
int uflag;
int vflag;
#ifdef __APPLE__
int maxentries;
#else
u_long highid[MAXQUOTAS];
#endif
#ifdef __APPLE__
char * blockcheck(char *);
int chkquota(char *, char *, char *, struct quotaname *);
int getquotagid(void);
int hasquota(struct statfs *, int, char **);
struct fileusage *
lookup(u_long, int);
void * needchk(struct statfs *);
int oneof(char *, char*[], int);
int qfinsert(FILE *, struct dqblk *, int, int);
int qfmaxentries(char *, int);
void usage(void);
void dqbuftohost(struct dqblk *dqbp);
#else
struct fileusage *
addid __P((uid_t, int, char *));
char *blockcheck __P((char *));
int chkquota __P((char *, char *, struct quotaname *));
int getquotagid __P((void));
int hasquota __P((struct fstab *, int, char **));
struct fileusage *
lookup __P((u_long, int));
void *needchk __P((struct fstab *));
int oneof __P((char *, char*[], int));
int update __P((char *, char *, int));
void usage __P((void));
#endif
int
main(argc, argv)
int argc;
char *argv[];
{
#ifndef __APPLE__
register struct fstab *fs;
register struct passwd *pw;
register struct group *gr;
#endif
struct quotaname *auxdata;
int i, argnum, maxrun, errs;
long done = 0;
char ch, *name;
#ifdef __APPLE__
int nfst;
struct statfs *fst;
#endif
errs = maxrun = 0;
while ((ch = getopt(argc, argv, "aguvl:")) != EOF) {
switch(ch) {
case 'a':
aflag++;
break;
case 'g':
gflag++;
break;
case 'u':
uflag++;
break;
case 'v':
vflag++;
break;
case 'l':
maxrun = atoi(optarg);
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if ((argc == 0 && !aflag) || (argc > 0 && aflag))
usage();
if (!gflag && !uflag) {
gflag++;
uflag++;
}
#ifdef __APPLE__
nfst = getmntinfo(&fst, MNT_WAIT);
if (nfst==0) {
fprintf(stderr, "quotacheck: no mounted filesystems\n");
exit(1);
}
for (i=0; i<nfst; i++) {
if(strcmp(fst[i].f_fstypename, "hfs")) {
continue;
}
if (aflag) {
if ((auxdata = needchk(&fst[i])) &&
(name = blockcheck(fst[i].f_mntfromname))) {
errs += chkquota(fst[i].f_fstypename, name, fst[i].f_mntonname, auxdata);
}
if (i+1 == nfst)
exit (errs);
else
continue;
}
if (((argnum = oneof(fst[i].f_mntonname, argv, argc)) >= 0 ||
(argnum = oneof(fst[i].f_mntfromname, argv, argc)) >= 0) &&
(auxdata = needchk(&fst[i])) &&
(name = blockcheck(fst[i].f_mntfromname))) {
done |= 1 << argnum;
errs += chkquota(fst[i].f_fstypename, name, fst[i].f_mntonname, auxdata);
}
}
for (i = 0; i < argc; i++)
if ((done & (1 << i)) == 0)
fprintf(stderr, "%s not identified as a quota filesystem\n",
argv[i]);
exit(errs);
#else
if (gflag) {
setgrent();
while ((gr = getgrent()) != 0)
(void) addid((u_long)gr->gr_gid, GRPQUOTA, gr->gr_name);
endgrent();
}
if (uflag) {
setpwent();
while ((pw = getpwent()) != 0)
(void) addid((u_long)pw->pw_uid, USRQUOTA, pw->pw_name);
endpwent();
}
if (aflag)
exit(checkfstab(1, maxrun, needchk, chkquota));
if (setfsent() == 0)
err(1, "%s: can't open", FSTAB);
while ((fs = getfsent()) != NULL) {
if (((argnum = oneof(fs->fs_file, argv, argc)) >= 0 ||
(argnum = oneof(fs->fs_spec, argv, argc)) >= 0) &&
(auxdata = needchk(fs)) &&
(name = blockcheck(fs->fs_spec))) {
done |= 1 << argnum;
errs += chkquota(name, fs->fs_file, auxdata);
}
}
endfsent();
for (i = 0; i < argc; i++)
if ((done & (1 << i)) == 0)
fprintf(stderr, "%s not found in %s\n",
argv[i], FSTAB);
exit(errs);
#endif
}
void
usage()
{
(void)fprintf(stderr, "usage:\t%s\n\t%s\n",
"quotacheck -a [-guv]",
"quotacheck [-guv] filesys ...");
exit(1);
}
#ifdef __APPLE__
void *
needchk(fst)
struct statfs *fst;
{
register struct quotaname *qnp;
char *qfnp;
if(strcmp(fst->f_fstypename, "hfs")) {
return(NULL);
}
if(fst->f_flags & MNT_RDONLY)
return (NULL);
if ((qnp = malloc(sizeof(*qnp))) == NULL)
err(1, "%s", strerror(errno));
qnp->flags = 0;
if (gflag && hasquota(fst, GRPQUOTA, &qfnp)) {
strlcpy(qnp->grpqfname, qfnp, sizeof(qnp->grpqfname));
qnp->flags |= HASGRP;
}
if (uflag && hasquota(fst, USRQUOTA, &qfnp)) {
strlcpy(qnp->usrqfname, qfnp, sizeof(qnp->usrqfname));
qnp->flags |= HASUSR;
}
if (qnp->flags)
return (qnp);
free(qnp);
return (NULL);
}
#else
void *
needchk(fs)
register struct fstab *fs;
{
register struct quotaname *qnp;
char *qfnp;
if (strcmp(fs->fs_type, FSTAB_RW))
return (NULL);
if ((qnp = malloc(sizeof(*qnp))) == NULL)
err(1, "%s", strerror(errno));
qnp->flags = 0;
if (gflag && hasquota(fs, GRPQUOTA, &qfnp)) {
strlcpy(qnp->grpqfname, qfnp, sizeof(qnp->grpqfname));
qnp->flags |= HASGRP;
}
if (uflag && hasquota(fs, USRQUOTA, &qfnp)) {
strlcpy(qnp->usrqfname, qfnp, sizeof(qnp->usrqfname));
qnp->flags |= HASUSR;
}
if (qnp->flags)
return (qnp);
free(qnp);
return (NULL);
}
#endif
int
chkquota(fstype, fsname, mntpt, qnp)
char *fstype, *fsname, *mntpt;
register struct quotaname *qnp;
{
int errs = 1;
if (vflag) {
fprintf(stdout, "*** Checking ");
if (qnp->flags & HASUSR)
fprintf(stdout, "%s%s", qfextension[USRQUOTA],
(qnp->flags & HASGRP) ? " and " : "");
if (qnp->flags & HASGRP)
fprintf(stdout, "%s", qfextension[GRPQUOTA]);
fprintf(stdout, " quotas for %s (%s)\n", fsname, mntpt);
}
if(strcmp(fstype, "hfs") == 0)
errs = chkquota_hfs(fsname, mntpt, qnp);
return (errs);
}
#ifdef __APPLE__
int
update(fsname, quotafile, type)
char *fsname, *quotafile;
register int type;
{
register struct fileusage *fup;
register FILE *qfi, *qfo;
register u_long i;
struct dqblk dqbuf;
struct dqfilehdr dqhdr = {0};
int m, shift;
int idcnt = 0;
static int warned = 0;
static struct dqblk zerodqbuf;
static struct fileusage zerofileusage;
if ((qfo = fopen(quotafile, "r+")) == NULL) {
if (errno == ENOENT)
qfo = fopen(quotafile, "w+");
if (qfo) {
fprintf(stderr,
"quotacheck: creating quota file %s\n", quotafile);
#define MODE (S_IRUSR|S_IWUSR|S_IRGRP)
(void) fchown(fileno(qfo), getuid(), getquotagid());
(void) fchmod(fileno(qfo), MODE);
} else {
fprintf(stderr,
"quotacheck: %s: %s\n", quotafile, strerror(errno));
return (1);
}
}
if ((qfi = fopen(quotafile, "r")) == NULL) {
fprintf(stderr,
"quotacheck: %s: %s\n", quotafile, strerror(errno));
(void) fclose(qfo);
return (1);
}
if (quotactl(fsname, QCMD(Q_SYNC, type), 0, 0) < 0 &&
errno == ENOTSUP && !warned && vflag) {
warned++;
fprintf(stdout, "*** Warning: %s\n",
"Quotas are not compiled into this kernel");
}
if (fread((char *)&dqhdr, sizeof(struct dqfilehdr), 1, qfi) > 0) {
if (OSSwapBigToHostInt32(dqhdr.dqh_magic) != quotamagic[type] &&
OSSwapInt32(dqhdr.dqh_magic) == quotamagic[type]) {
fprintf(stderr,
"quotacheck: %s: not in big endian byte order\n",
quotafile);
(void) fclose(qfo);
(void) fclose(qfi);
return (1);
}
if ((OSSwapBigToHostInt32(dqhdr.dqh_magic) != quotamagic[type]) ||
(OSSwapBigToHostInt32(dqhdr.dqh_version) > QF_VERSION) ||
(!powerof2(OSSwapBigToHostInt32(dqhdr.dqh_maxentries)))) {
fprintf(stderr,
"quotacheck: %s: not a valid quota file\n",
quotafile);
(void) fclose(qfo);
(void) fclose(qfi);
return (1);
}
m = OSSwapBigToHostInt32(dqhdr.dqh_maxentries);
} else {
if (maxentries)
m = maxentries;
else
m = qfmaxentries(fsname, type);
ftruncate(fileno(qfo), (off_t)((m + 1) * sizeof(struct dqblk)));
dqhdr.dqh_magic = OSSwapHostToBigInt32(quotamagic[type]);
dqhdr.dqh_version = OSSwapHostToBigConstInt32(QF_VERSION);
dqhdr.dqh_maxentries = OSSwapHostToBigInt32(m);
dqhdr.dqh_btime = OSSwapHostToBigConstInt32(MAX_DQ_TIME);
dqhdr.dqh_itime = OSSwapHostToBigConstInt32(MAX_IQ_TIME);
memmove(dqhdr.dqh_string, QF_STRING_TAG, strlen(QF_STRING_TAG));
goto orphans;
}
for (i = 0; i < m; i++) {
if (fread((char *)&dqbuf, sizeof(struct dqblk), 1, qfi) == 0) {
fprintf(stderr,
"quotacheck: problem reading at index %ld\n", i);
continue;
}
if (dqbuf.dqb_id == 0)
continue;
++idcnt;
if ((fup = lookup(OSSwapBigToHostInt32(dqbuf.dqb_id), type)) == 0)
fup = &zerofileusage;
else
fup->fu_checked = 1;
if (OSSwapBigToHostInt32(dqbuf.dqb_curinodes) == fup->fu_curinodes &&
OSSwapBigToHostInt64(dqbuf.dqb_curbytes) == fup->fu_curbytes) {
fup->fu_curinodes = 0;
fup->fu_curbytes = 0;
continue;
}
if (vflag) {
if (aflag)
fprintf(stdout, "%s: ", fsname);
fprintf(stdout, "%-12s fixed:", fup->fu_name);
if (OSSwapBigToHostInt32(dqbuf.dqb_curinodes) != fup->fu_curinodes)
fprintf(stdout, "\tinodes %u -> %u",
OSSwapBigToHostInt32(dqbuf.dqb_curinodes), fup->fu_curinodes);
if (OSSwapBigToHostInt64(dqbuf.dqb_curbytes) != fup->fu_curbytes)
fprintf(stdout, "\t1K blocks %qd -> %qd",
(OSSwapBigToHostInt64(dqbuf.dqb_curbytes)/1024), (fup->fu_curbytes/1024));
fprintf(stdout, "\n");
}
if (dqbuf.dqb_bsoftlimit != 0 &&
OSSwapBigToHostInt64(dqbuf.dqb_curbytes) < OSSwapBigToHostInt64(dqbuf.dqb_bsoftlimit) &&
fup->fu_curbytes >= OSSwapBigToHostInt64(dqbuf.dqb_bsoftlimit))
dqbuf.dqb_btime = 0;
if (dqbuf.dqb_isoftlimit != 0 &&
OSSwapBigToHostInt32(dqbuf.dqb_curinodes) < OSSwapBigToHostInt32(dqbuf.dqb_isoftlimit) &&
fup->fu_curinodes >= OSSwapBigToHostInt32(dqbuf.dqb_isoftlimit))
dqbuf.dqb_itime = 0;
dqbuf.dqb_curinodes = OSSwapHostToBigInt32(fup->fu_curinodes);
dqbuf.dqb_curbytes = OSSwapHostToBigInt64(fup->fu_curbytes);
fseek(qfo, dqoffset(i), SEEK_SET);
fwrite((char *)&dqbuf, sizeof(struct dqblk), 1, qfo);
dqbuftohost(&dqbuf);
(void) quotactl(fsname, QCMD(Q_SETUSE, type), dqbuf.dqb_id,
(caddr_t)&dqbuf);
fup->fu_curinodes = 0;
fup->fu_curbytes = 0;
}
orphans:
shift = dqhashshift(m);
for (i = 0; i < FUHASH; ++i) {
for (fup = fuhead[type][i]; fup != 0; fup = fup->fu_next) {
if (fup->fu_checked || fup->fu_id == 0)
continue;
if (vflag) {
if (aflag)
fprintf(stdout, "%s: ", fsname);
fprintf(stdout,
"%-12s added:\tinodes %u\t1K blocks %qd\n",
fup->fu_name, fup->fu_curinodes,
(fup->fu_curbytes/1024));
}
dqbuf = zerodqbuf;
dqbuf.dqb_id = OSSwapHostToBigInt32(fup->fu_id);
dqbuf.dqb_curinodes = OSSwapHostToBigInt32(fup->fu_curinodes);
dqbuf.dqb_curbytes = OSSwapHostToBigInt64(fup->fu_curbytes);
if (qfinsert(qfo, &dqbuf, m, shift)) {
i = FUHASH;
break;
}
dqbuftohost(&dqbuf);
(void) quotactl(fsname, QCMD(Q_SETUSE, type),
dqbuf.dqb_id, (caddr_t)&dqbuf);
++idcnt;
}
}
dqhdr.dqh_entrycnt = OSSwapHostToBigInt32(idcnt);
fseek(qfo, (long)0, SEEK_SET);
fwrite((char *)&dqhdr, sizeof(struct dqfilehdr), 1, qfo);
fclose(qfi);
fflush(qfo);
fclose(qfo);
return (0);
}
void
dqbuftohost(struct dqblk *dqbp)
{
dqbp->dqb_bhardlimit = OSSwapBigToHostInt64(dqbp->dqb_bhardlimit);
dqbp->dqb_bsoftlimit = OSSwapBigToHostInt64(dqbp->dqb_bsoftlimit);
dqbp->dqb_curbytes = OSSwapBigToHostInt64(dqbp->dqb_curbytes);
dqbp->dqb_ihardlimit = OSSwapBigToHostInt32(dqbp->dqb_ihardlimit);
dqbp->dqb_isoftlimit = OSSwapBigToHostInt32(dqbp->dqb_isoftlimit);
dqbp->dqb_curinodes = OSSwapBigToHostInt32(dqbp->dqb_curinodes);
dqbp->dqb_btime = OSSwapBigToHostInt32(dqbp->dqb_btime);
dqbp->dqb_itime = OSSwapBigToHostInt32(dqbp->dqb_itime);
dqbp->dqb_id = OSSwapBigToHostInt32(dqbp->dqb_id);
}
#else
int
update(fsname, quotafile, type)
char *fsname, *quotafile;
register int type;
{
register struct fileusage *fup;
register FILE *qfi, *qfo;
register u_long id, lastid;
struct dqblk dqbuf;
static int warned = 0;
static struct dqblk zerodqbuf;
static struct fileusage zerofileusage;
if ((qfo = fopen(quotafile, "r+")) == NULL) {
if (errno == ENOENT)
qfo = fopen(quotafile, "w+");
if (qfo) {
(void) fprintf(stderr,
"quotacheck: creating quota file %s\n", quotafile);
#define MODE (S_IRUSR|S_IWUSR|S_IRGRP)
(void) fchown(fileno(qfo), getuid(), getquotagid());
(void) fchmod(fileno(qfo), MODE);
} else {
(void) fprintf(stderr,
"quotacheck: %s: %s\n", quotafile, strerror(errno));
return (1);
}
}
if ((qfi = fopen(quotafile, "r")) == NULL) {
(void) fprintf(stderr,
"quotacheck: %s: %s\n", quotafile, strerror(errno));
(void) fclose(qfo);
return (1);
}
if (quotactl(fsname, QCMD(Q_SYNC, type), (u_long)0, (caddr_t)0) < 0 &&
errno == ENOTSUP && !warned && vflag) {
warned++;
(void)printf("*** Warning: %s\n",
"Quotas are not compiled into this kernel");
}
for (lastid = highid[type], id = 0; id <= lastid; id++) {
if (fread((char *)&dqbuf, sizeof(struct dqblk), 1, qfi) == 0)
dqbuf = zerodqbuf;
if ((fup = lookup(id, type)) == 0)
fup = &zerofileusage;
if (dqbuf.dqb_curinodes == fup->fu_curinodes &&
dqbuf.dqb_curblocks == fup->fu_curblocks) {
fup->fu_curinodes = 0;
fup->fu_curblocks = 0;
fseek(qfo, (long)sizeof(struct dqblk), 1);
continue;
}
if (vflag) {
if (aflag)
printf("%s: ", fsname);
printf("%-8s fixed:", fup->fu_name);
if (dqbuf.dqb_curinodes != fup->fu_curinodes)
(void)printf("\tinodes %d -> %d",
dqbuf.dqb_curinodes, fup->fu_curinodes);
if (dqbuf.dqb_curblocks != fup->fu_curblocks)
(void)printf("\tblocks %d -> %d",
dqbuf.dqb_curblocks, fup->fu_curblocks);
(void)printf("\n");
}
if (dqbuf.dqb_bsoftlimit &&
dqbuf.dqb_curblocks < dqbuf.dqb_bsoftlimit &&
fup->fu_curblocks >= dqbuf.dqb_bsoftlimit)
dqbuf.dqb_btime = 0;
if (dqbuf.dqb_isoftlimit &&
dqbuf.dqb_curblocks < dqbuf.dqb_isoftlimit &&
fup->fu_curblocks >= dqbuf.dqb_isoftlimit)
dqbuf.dqb_itime = 0;
dqbuf.dqb_curinodes = fup->fu_curinodes;
dqbuf.dqb_curblocks = fup->fu_curblocks;
fwrite((char *)&dqbuf, sizeof(struct dqblk), 1, qfo);
(void) quotactl(fsname, QCMD(Q_SETUSE, type), id,
(caddr_t)&dqbuf);
fup->fu_curinodes = 0;
fup->fu_curblocks = 0;
}
fclose(qfi);
fflush(qfo);
ftruncate(fileno(qfo),
(off_t)((highid[type] + 1) * sizeof(struct dqblk)));
fclose(qfo);
return (0);
}
#endif
#ifdef __APPLE__
int
qfinsert(file, dqbp, maxentries, shift)
FILE *file;
struct dqblk *dqbp;
int maxentries, shift;
{
struct dqblk dqbuf;
int i, skip, last;
u_int32_t mask;
u_int32_t id;
off_t offset;
id = OSSwapBigToHostInt32(dqbp->dqb_id);
if (id == 0)
return (0);
mask = maxentries - 1;
i = dqhash1(id, dqhashshift(maxentries), mask);
skip = dqhash2(id, mask);
for (last = (i + (maxentries-1) * skip) & mask;
i != last;
i = (i + skip) & mask) {
offset = dqoffset(i);
fseek(file, (long)offset, SEEK_SET);
if (fread((char *)&dqbuf, sizeof(struct dqblk), 1, file) == 0) {
fprintf(stderr, "quotacheck: read error at index %d\n", i);
return (EIO);
}
if (dqbuf.dqb_id == 0 || dqbuf.dqb_id == dqbp->dqb_id) {
dqbuf = *dqbp;
fseek(file, (long)offset, SEEK_SET);
fwrite((char *)&dqbuf, sizeof(struct dqblk), 1, file);
return (0);
}
}
fprintf(stderr, "quotacheck: exceeded maximum entries (%d)\n", maxentries);
return (ENOSPC);
}
#define ONEGIGABYTE (1024*1024*1024)
int
qfmaxentries(mntpt, type)
char *mntpt;
int type;
{
struct statfs fs_stat;
u_int64_t fs_size;
int max = 0;
if (statfs(mntpt, &fs_stat)) {
fprintf(stderr, "quotacheck: %s: %s\n",
mntpt, strerror(errno));
return (0);
}
fs_size = (u_int64_t)fs_stat.f_blocks * (u_int64_t)fs_stat.f_bsize;
if (type == USRQUOTA) {
max = QF_USERS_PER_GB * (fs_size / ONEGIGABYTE);
if (max < QF_MIN_USERS)
max = QF_MIN_USERS;
else if (max > QF_MAX_USERS)
max = QF_MAX_USERS;
} else if (type == GRPQUOTA) {
max = QF_GROUPS_PER_GB * (fs_size / ONEGIGABYTE);
if (max < QF_MIN_GROUPS)
max = QF_MIN_GROUPS;
else if (max > QF_MAX_GROUPS)
max = QF_MAX_GROUPS;
}
if (max && !powerof2(max)) {
int x = max;
max = 4;
while (x>>1 != 1) {
x = x >> 1;
max = max << 1;
}
}
return (max);
}
#endif
int
oneof(target, list, cnt)
register char *target, *list[];
int cnt;
{
register int i;
for (i = 0; i < cnt; i++)
if (strcmp(target, list[i]) == 0)
return (i);
return (-1);
}
int
getquotagid()
{
struct group *gr;
if ((gr = getgrnam(quotagroup)))
return (gr->gr_gid);
return (-1);
}
#ifdef __APPLE__
int
hasquota(fst, type, qfnamep)
struct statfs *fst;
int type;
char **qfnamep;
{
struct stat sb;
static char initname, usrname[100], grpname[100];
static char buf[BUFSIZ];
if (!initname) {
(void)snprintf(usrname, sizeof(usrname),
"%s%s", qfextension[USRQUOTA], qfname);
(void)snprintf(grpname, sizeof(grpname),
"%s%s", qfextension[GRPQUOTA], qfname);
initname = 1;
}
(void)snprintf(buf, sizeof(buf), "%s/%s.%s", fst->f_mntonname,
QUOTAOPSNAME, qfextension[type] );
if (stat(buf, &sb) != 0) {
return(0);
}
(void)snprintf(buf, sizeof(buf),
"%s/%s.%s", fst->f_mntonname, qfname, qfextension[type]);
*qfnamep = buf;
return (1);
}
#else
int
hasquota(fs, type, qfnamep)
register struct fstab *fs;
int type;
char **qfnamep;
{
register char *opt;
char *cp;
static char initname, usrname[100], grpname[100];
static char buf[BUFSIZ];
if (!initname) {
(void)snprintf(usrname, sizeof(usrname),
"%s%s", qfextension[USRQUOTA], qfname);
(void)snprintf(grpname, sizeof(grpname),
"%s%s", qfextension[GRPQUOTA], qfname);
initname = 1;
}
strlcpy(buf, fs->fs_mntops, sizeof(buf));
for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) {
if (cp = strchr(opt, '='))
*cp++ = '\0';
if (type == USRQUOTA && strcmp(opt, usrname) == 0)
break;
if (type == GRPQUOTA && strcmp(opt, grpname) == 0)
break;
}
if (!opt)
return (0);
if (cp)
*qfnamep = cp;
else {
(void)snprintf(buf, sizeof(buf),
"%s/%s.%s", fs->fs_file, qfname, qfextension[type]);
*qfnamep = buf;
}
return (1);
}
#endif
struct fileusage *
lookup(id, type)
u_long id;
int type;
{
register struct fileusage *fup;
for (fup = fuhead[type][id & (FUHASH-1)]; fup != 0; fup = fup->fu_next)
if (fup->fu_id == id)
return (fup);
return (NULL);
}
#ifdef __APPLE__
struct fileusage *
addid(id, type)
uid_t id;
int type;
{
struct fileusage *fup, **fhp;
struct passwd *pw;
struct group *gr;
char *name;
size_t len;
if ((fup = lookup(id, type)))
return (fup);
name = NULL;
len = 10;
switch (type) {
case USRQUOTA:
if ((pw = getpwuid(id)) != 0) {
name = pw->pw_name;
len = strlen(name);
}
break;
case GRPQUOTA:
if ((gr = getgrgid(id)) != 0) {
name = gr->gr_name;
len = strlen(name);
}
break;
}
if ((fup = calloc(1, sizeof(*fup) + len)) == NULL)
err(1, "%s", strerror(errno));
fhp = &fuhead[type][id & (FUHASH - 1)];
fup->fu_next = *fhp;
*fhp = fup;
fup->fu_id = id;
if (name)
memmove(fup->fu_name, name, len + 1);
else
(void)snprintf(fup->fu_name, len + 1, "%u", (unsigned int)id);
return (fup);
}
#else
struct fileusage *
addid(id, type, name)
u_long id;
int type;
char *name;
{
struct fileusage *fup, **fhp;
int len;
if (fup = lookup(id, type))
return (fup);
if (name)
len = strlen(name);
else
len = 10;
if ((fup = calloc(1, sizeof(*fup) + len)) == NULL)
err(1, "%s", strerror(errno));
fhp = &fuhead[type][id & (FUHASH - 1)];
fup->fu_next = *fhp;
*fhp = fup;
fup->fu_id = id;
if (id > highid[type])
highid[type] = id;
if (name)
memmove(fup->fu_name, name, len + 1);
else
(void)snprintf(fup->fu_name, len + 1, "%u", id);
return (fup);
}
#endif