]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * $Source$ | |
3 | * $Author$ | |
4 | * $Header$ | |
5 | * | |
6 | * Copyright (C) 1987 by the Massachusetts Institute of Technology | |
7 | * | |
8 | * Set quota on specified device for specified user to specified value. | |
9 | * | |
10 | * Uses the NFS style quota system/quotactl rather than the Melbourne | |
11 | * quota system. | |
12 | * | |
13 | * $Log$ | |
14 | * Revision 1.6 1990-03-07 17:41:22 mar | |
15 | * fix proc delcaration to pass cc | |
16 | * | |
17 | * Revision 1.5 90/03/06 15:59:08 jnrees | |
18 | * x*.5 replaced with x/2; | |
19 | * x*1.2 with (x*6)/5; | |
20 | * This avoids linking in the floating-point library. | |
21 | * | |
22 | * Revision 1.4 90/01/27 19:48:05 jnrees | |
23 | * Grows quotas file if necessary | |
24 | * Allows setting quota for a range of uid's. | |
25 | * | |
26 | * Revision 1.3 88/10/06 10:46:08 raeburn | |
27 | * (mar) Don't expire timers on users currently over quota. | |
28 | * | |
29 | * Revision 1.1 87/09/04 21:32:47 wesommer | |
30 | * Initial revision | |
31 | * | |
32 | */ | |
33 | ||
34 | #ifndef lint | |
35 | static char *rcsid_setquota_c = "$Header$"; | |
36 | #endif lint | |
37 | ||
38 | #include <stdio.h> | |
39 | #include <ctype.h> | |
40 | #include <mntent.h> | |
41 | ||
42 | #include <sys/file.h> | |
43 | #include <sys/param.h> | |
44 | #include <sys/time.h> | |
45 | #include <ufs/quota.h> | |
46 | ||
47 | #define kb(n) (howmany(dbtob(n), 1024)) | |
48 | ||
49 | static char device[20]; | |
50 | static char quotafilename[30]; | |
51 | static struct dqblk zblk = {0}; | |
52 | ||
53 | main(argc, argv) | |
54 | int argc; | |
55 | char **argv; | |
56 | { | |
57 | int uid, uid_low, uid_high, soft_quota, qfd; | |
58 | struct dqblk db, odb; | |
59 | int uflag = 0; | |
60 | int range_mode = 0; | |
61 | ||
62 | while (argc > 4 && *argv[1] == '-') { | |
63 | switch(argv[1][1]) { | |
64 | case 'u': | |
65 | uflag = 1; | |
66 | --argc; | |
67 | ++argv; | |
68 | break; | |
69 | case 'r': | |
70 | range_mode = 1; | |
71 | --argc; | |
72 | ++argv; | |
73 | break; | |
74 | default: | |
75 | goto usage; | |
76 | } | |
77 | } | |
78 | ||
79 | if ((argc != 4 && !range_mode) || (argc != 5 && range_mode)) { | |
80 | usage: | |
81 | fprintf(stderr, "usage: setquota [-u] special uid quota\n\ | |
82 | setquota -r [-u] special uid_low uid_high quota\n\ | |
83 | -u means set limit to <quota> + cur usage\n\ | |
84 | special is a mounted filesystem special device\n\ | |
85 | quota is in 1KB units\n"); | |
86 | exit(1); | |
87 | } | |
88 | ||
89 | if ((!range_mode && | |
90 | (!isdigit(*argv[2]) || !isdigit(*argv[3]))) || | |
91 | (range_mode && | |
92 | (!isdigit(*argv[2]) || !isdigit(*argv[3]) || | |
93 | !isdigit(*argv[4])))) { | |
94 | fprintf(stderr, "setquota: uid and quota must be numeric\n"); | |
95 | goto usage; | |
96 | } | |
97 | ||
98 | if (range_mode){ | |
99 | uid_low = atoi(argv[2]); | |
100 | uid_high = atoi(argv[3]); | |
101 | soft_quota = atoi(argv[4]); | |
102 | if (uid_low > uid_high){ | |
103 | fprintf(stderr, "setquota: range error\n"); | |
104 | exit(1); | |
105 | } | |
106 | } | |
107 | else{ | |
108 | uid_low = uid_high = atoi(argv[2]); | |
109 | soft_quota = atoi(argv[3]); | |
110 | } | |
111 | ||
112 | get_device(argv[1]); | |
113 | ||
114 | for(uid = uid_low; uid <= uid_high; uid++){ | |
115 | ||
116 | if (quotactl(Q_GETQUOTA, device, uid, &odb) != 0) { | |
117 | ||
118 | if (!(qfd = open(quotafilename, O_RDWR))){ | |
119 | perror("No quota file"); | |
120 | exit(1); | |
121 | } | |
122 | ||
123 | lseek(qfd, 32767*sizeof(struct dqblk), L_SET); | |
124 | write(qfd, &zblk, sizeof(struct dqblk)); | |
125 | close(qfd); | |
126 | ||
127 | if (quotactl(Q_GETQUOTA, device, uid, &odb) != 0) { | |
128 | perror("Can't get current quota info"); | |
129 | exit(1); | |
130 | } | |
131 | } | |
132 | ||
133 | db.dqb_bsoftlimit = soft_quota; | |
134 | db.dqb_bhardlimit = (db.dqb_bsoftlimit * 6) / 5; | |
135 | db.dqb_fsoftlimit = soft_quota / 2; | |
136 | db.dqb_fhardlimit = (db.dqb_fsoftlimit * 6) / 5; | |
137 | db.dqb_btimelimit = odb.dqb_btimelimit; | |
138 | db.dqb_ftimelimit = odb.dqb_ftimelimit; | |
139 | ||
140 | db.dqb_bsoftlimit *= btodb(1024); | |
141 | db.dqb_bhardlimit *= btodb(1024); | |
142 | ||
143 | if (uflag) { | |
144 | db.dqb_bhardlimit += odb.dqb_curblocks; | |
145 | db.dqb_bsoftlimit += odb.dqb_curblocks; | |
146 | db.dqb_fhardlimit += odb.dqb_curfiles; | |
147 | db.dqb_fsoftlimit += odb.dqb_curfiles; | |
148 | } | |
149 | ||
150 | if (quotactl(Q_SETQLIM, device, uid, &db) < 0) { | |
151 | fprintf (stderr, "quotactl: %d on ", uid); | |
152 | perror (device); | |
153 | exit (1); | |
154 | } | |
155 | } | |
156 | ||
157 | if (quotactl(Q_SYNC, device, 0, 0) < 0) { | |
158 | perror ("can't sync disk quota"); | |
159 | exit (1); | |
160 | } | |
161 | ||
162 | exit (0); | |
163 | } | |
164 | ||
165 | get_device(device_or_dir) | |
166 | char *device_or_dir; | |
167 | { | |
168 | register struct mntent *mntp; | |
169 | FILE *fstab; | |
170 | ||
171 | fstab = setmntent(MNTTAB, "r"); | |
172 | while(mntp = getmntent(fstab)){ | |
173 | if ((strcmp(mntp->mnt_fsname, device_or_dir) == 0) || | |
174 | (strcmp(mntp->mnt_dir, device_or_dir) == 0)){ | |
175 | strcpy(device, mntp->mnt_fsname); | |
176 | sprintf(quotafilename, "%s/quotas", mntp->mnt_dir); | |
177 | endmntent(fstab); | |
178 | return; | |
179 | } | |
180 | } | |
181 | fprintf(stderr, "%s not mounted.\n", device_or_dir); | |
182 | exit(1); | |
183 | } |