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Annotation of 43BSDTahoe/etc/repquota.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef lint
        !            19: char copyright[] =
        !            20: "@(#) Copyright (c) 1980 Regents of the University of California.\n\
        !            21:  All rights reserved.\n";
        !            22: #endif /* not lint */
        !            23: 
        !            24: #ifndef lint
        !            25: static char sccsid[] = "@(#)repquota.c 5.6 (Berkeley) 6/18/88";
        !            26: #endif /* not lint */
        !            27: 
        !            28: /*
        !            29:  * Quota report
        !            30:  */
        !            31: #include <stdio.h>
        !            32: #include <errno.h>
        !            33: #include <sys/param.h>
        !            34: #include <sys/quota.h>
        !            35: #include <sys/stat.h>
        !            36: #include <fstab.h>
        !            37: #include <pwd.h>
        !            38: 
        !            39: #define LOGINNAMESIZE 8
        !            40: struct fileusage {
        !            41:        struct fileusage *fu_next;
        !            42:        struct dqblk fu_dqblk;
        !            43:        u_short fu_uid;
        !            44:        char fu_name[LOGINNAMESIZE + 1];
        !            45: };
        !            46: #define FUHASH 997
        !            47: struct fileusage *fuhead[FUHASH];
        !            48: struct fileusage *lookup();
        !            49: struct fileusage *adduid();
        !            50: int highuid;
        !            51: 
        !            52: long done;
        !            53: struct passwd  *getpwent();
        !            54: 
        !            55: int    vflag;          /* verbose */
        !            56: int    aflag;          /* all file systems */
        !            57: 
        !            58: char *qfname = "quotas";
        !            59: struct dqblk zerodqblk;
        !            60: 
        !            61: main(argc, argv)
        !            62:        int argc;
        !            63:        char **argv;
        !            64: {
        !            65:        register struct fstab *fs;
        !            66:        register struct passwd *pw;
        !            67:        register struct fileusage *fup;
        !            68:        char quotafile[MAXPATHLEN];
        !            69:        int i, errs = 0;
        !            70: 
        !            71: again:
        !            72:        argc--, argv++;
        !            73:        if (argc > 0 && strcmp(*argv, "-v") == 0) {
        !            74:                vflag++;
        !            75:                goto again;
        !            76:        }
        !            77:        if (argc > 0 && strcmp(*argv, "-a") == 0) {
        !            78:                aflag++;
        !            79:                goto again;
        !            80:        }
        !            81:        if (argc <= 0 && !aflag) {
        !            82:                fprintf(stderr, "Usage:\n\t%s\n\t%s\n",
        !            83:                        "repquota [-v] -a",
        !            84:                        "repquota [-v] filesys ...");
        !            85:                exit(1);
        !            86:        }
        !            87:        setpwent();
        !            88:        while ((pw = getpwent()) != 0) {
        !            89:                fup = lookup(pw->pw_uid);
        !            90:                if (fup == 0) {
        !            91:                        fup = adduid(pw->pw_uid);
        !            92:                        strncpy(fup->fu_name, pw->pw_name, sizeof(fup->fu_name));
        !            93:                }
        !            94:        }
        !            95:        endpwent();
        !            96:        setfsent();
        !            97:        while ((fs = getfsent()) != NULL) {
        !            98:                if (aflag &&
        !            99:                    (fs->fs_type == 0 || strcmp(fs->fs_type, "rq") != 0))
        !           100:                        continue;
        !           101:                if (!aflag &&
        !           102:                    !(oneof(fs->fs_file, argv, argc) ||
        !           103:                      oneof(fs->fs_spec, argv, argc)))
        !           104:                        continue;
        !           105:                (void) sprintf(quotafile, "%s/%s", fs->fs_file, qfname);
        !           106:                errs += repquota(fs->fs_spec, fs->fs_file, quotafile);
        !           107:        }
        !           108:        endfsent();
        !           109:        for (i = 0; i < argc; i++)
        !           110:                if ((done & (1 << i)) == 0)
        !           111:                        fprintf(stderr, "%s not found in /etc/fstab\n",
        !           112:                                argv[i]);
        !           113:        exit(errs);
        !           114: }
        !           115: 
        !           116: repquota(fsdev, fsfile, qffile)
        !           117:        char *fsdev;
        !           118:        char *fsfile;
        !           119:        char *qffile;
        !           120: {
        !           121:        register struct fileusage *fup;
        !           122:        FILE *qf;
        !           123:        u_short uid;
        !           124:        struct dqblk dqbuf;
        !           125:        struct stat statb;
        !           126:        static int warned = 0;
        !           127:        extern int errno;
        !           128: 
        !           129:        if (vflag)
        !           130:                fprintf(stdout, "*** Quota report for %s (%s)\n", fsdev, fsfile);
        !           131:        qf = fopen(qffile, "r");
        !           132:        if (qf == NULL) {
        !           133:                perror(qffile);
        !           134:                return (1);
        !           135:        }
        !           136:        if (fstat(fileno(qf), &statb) < 0) {
        !           137:                perror(qffile);
        !           138:                fclose(qf);
        !           139:                return (1);
        !           140:        }
        !           141:        if (quota(Q_SYNC, 0, statb.st_dev, 0) < 0 &&
        !           142:            errno == EINVAL && !warned && vflag) {
        !           143:                warned++;
        !           144:                fprintf(stdout,
        !           145:                    "*** Warning: Quotas are not compiled into this kernel\n");
        !           146:        }
        !           147:        for (uid = 0; ; uid++) {
        !           148:                fread(&dqbuf, sizeof(struct dqblk), 1, qf);
        !           149:                if (feof(qf))
        !           150:                        break;
        !           151:                fup = lookup(uid);
        !           152:                if ((fup == 0 || fup->fu_name[0] == 0) &&
        !           153:                    dqbuf.dqb_curinodes == 0 && dqbuf.dqb_curblocks == 0)
        !           154:                        continue;
        !           155:                if (fup == 0)
        !           156:                        fup = adduid(uid);
        !           157:                fup->fu_dqblk = dqbuf;
        !           158:        }
        !           159:        printf("                        Block limits               File limits\n");
        !           160:        printf("User            used    soft    hard  warn    used  soft  hard  warn\n");
        !           161:        for (uid = 0; uid <= highuid; uid++) {
        !           162:                fup = lookup(uid);
        !           163:                if (fup == 0)
        !           164:                        continue;
        !           165:                if (fup->fu_dqblk.dqb_curinodes == 0 &&
        !           166:                    fup->fu_dqblk.dqb_curblocks == 0)
        !           167:                        continue;
        !           168:                if (fup->fu_name[0] != '\0')
        !           169:                        printf("%-10s", fup->fu_name);
        !           170:                else
        !           171:                        printf("#%-9d", uid);
        !           172:                printf("%c%c%8d%8d%8d %5d   %5d %5d %5d %5d\n",
        !           173:                        fup->fu_dqblk.dqb_bsoftlimit && 
        !           174:                            fup->fu_dqblk.dqb_curblocks >= 
        !           175:                            fup->fu_dqblk.dqb_bsoftlimit ? '+' : '-',
        !           176:                        fup->fu_dqblk.dqb_isoftlimit &&
        !           177:                            fup->fu_dqblk.dqb_curinodes >=
        !           178:                            fup->fu_dqblk.dqb_isoftlimit ? '+' : '-',
        !           179:                        dbtob(fup->fu_dqblk.dqb_curblocks) / 1024,
        !           180:                        dbtob(fup->fu_dqblk.dqb_bsoftlimit) / 1024,
        !           181:                        dbtob(fup->fu_dqblk.dqb_bhardlimit) / 1024,
        !           182:                        fup->fu_dqblk.dqb_bwarn,
        !           183:                        fup->fu_dqblk.dqb_curinodes,
        !           184:                        fup->fu_dqblk.dqb_isoftlimit,
        !           185:                        fup->fu_dqblk.dqb_ihardlimit,
        !           186:                        fup->fu_dqblk.dqb_iwarn);
        !           187:                fup->fu_dqblk = zerodqblk;
        !           188:        }
        !           189:        fclose(qf);
        !           190:        return (0);
        !           191: }
        !           192: 
        !           193: oneof(target, list, n)
        !           194:        char *target, *list[];
        !           195:        register int n;
        !           196: {
        !           197:        register int i;
        !           198: 
        !           199:        for (i = 0; i < n; i++)
        !           200:                if (strcmp(target, list[i]) == 0) {
        !           201:                        done |= 1 << i;
        !           202:                        return (1);
        !           203:                }
        !           204:        return (0);
        !           205: }
        !           206: 
        !           207: struct fileusage *
        !           208: lookup(uid)
        !           209:        u_short uid;
        !           210: {
        !           211:        register struct fileusage *fup;
        !           212: 
        !           213:        for (fup = fuhead[uid % FUHASH]; fup != 0; fup = fup->fu_next)
        !           214:                if (fup->fu_uid == uid)
        !           215:                        return (fup);
        !           216:        return ((struct fileusage *)0);
        !           217: }
        !           218: 
        !           219: struct fileusage *
        !           220: adduid(uid)
        !           221:        u_short uid;
        !           222: {
        !           223:        struct fileusage *fup, **fhp;
        !           224:        extern char *calloc();
        !           225: 
        !           226:        fup = lookup(uid);
        !           227:        if (fup != 0)
        !           228:                return (fup);
        !           229:        fup = (struct fileusage *)calloc(1, sizeof(struct fileusage));
        !           230:        if (fup == 0) {
        !           231:                fprintf(stderr, "out of memory for fileusage structures\n");
        !           232:                exit(1);
        !           233:        }
        !           234:        fhp = &fuhead[uid % FUHASH];
        !           235:        fup->fu_next = *fhp;
        !           236:        *fhp = fup;
        !           237:        fup->fu_uid = uid;
        !           238:        if (uid > highuid)
        !           239:                highuid = uid;
        !           240:        return (fup);
        !           241: }

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