edquota.c revision 8325
1187262Snwhitehorn/* 2187262Snwhitehorn * Copyright (c) 1980, 1990, 1993 3187262Snwhitehorn * The Regents of the University of California. All rights reserved. 4187262Snwhitehorn * 5187262Snwhitehorn * This code is derived from software contributed to Berkeley by 6187262Snwhitehorn * Robert Elz at The University of Melbourne. 7187262Snwhitehorn * 8187262Snwhitehorn * Redistribution and use in source and binary forms, with or without 9187262Snwhitehorn * modification, are permitted provided that the following conditions 10187262Snwhitehorn * are met: 11187262Snwhitehorn * 1. Redistributions of source code must retain the above copyright 12187262Snwhitehorn * notice, this list of conditions and the following disclaimer. 13187262Snwhitehorn * 2. Redistributions in binary form must reproduce the above copyright 14187262Snwhitehorn * notice, this list of conditions and the following disclaimer in the 15187262Snwhitehorn * documentation and/or other materials provided with the distribution. 16187262Snwhitehorn * 3. All advertising materials mentioning features or use of this software 17187262Snwhitehorn * must display the following acknowledgement: 18187262Snwhitehorn * This product includes software developed by the University of 19187262Snwhitehorn * California, Berkeley and its contributors. 20187262Snwhitehorn * 4. Neither the name of the University nor the names of its contributors 21187262Snwhitehorn * may be used to endorse or promote products derived from this software 22187262Snwhitehorn * without specific prior written permission. 23187262Snwhitehorn * 24187262Snwhitehorn * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25187262Snwhitehorn * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26187262Snwhitehorn * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27187262Snwhitehorn * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28187262Snwhitehorn * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29187262Snwhitehorn * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30187262Snwhitehorn * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31187262Snwhitehorn * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32187262Snwhitehorn * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33187262Snwhitehorn * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34187262Snwhitehorn * SUCH DAMAGE. 35187262Snwhitehorn */ 36187262Snwhitehorn 37187262Snwhitehorn#ifndef lint 38187262Snwhitehornstatic char copyright[] = 39187262Snwhitehorn"@(#) Copyright (c) 1980, 1990, 1993\n\ 40187262Snwhitehorn The Regents of the University of California. All rights reserved.\n"; 41187262Snwhitehorn#endif /* not lint */ 42187262Snwhitehorn 43187262Snwhitehorn#ifndef lint 44187262Snwhitehornstatic char sccsid[] = "@(#)edquota.c 8.1 (Berkeley) 6/6/93"; 45187262Snwhitehorn#endif /* not lint */ 46187262Snwhitehorn 47187262Snwhitehorn/* 48187262Snwhitehorn * Disk quota editor. 49187262Snwhitehorn */ 50187262Snwhitehorn#include <sys/param.h> 51187262Snwhitehorn#include <sys/stat.h> 52187262Snwhitehorn#include <sys/file.h> 53187262Snwhitehorn#include <sys/wait.h> 54187262Snwhitehorn#include <ufs/ufs/quota.h> 55187262Snwhitehorn#include <errno.h> 56187262Snwhitehorn#include <fstab.h> 57187262Snwhitehorn#include <pwd.h> 58187262Snwhitehorn#include <grp.h> 59187262Snwhitehorn#include <ctype.h> 60187262Snwhitehorn#include <stdio.h> 61187262Snwhitehorn#include <string.h> 62187262Snwhitehorn#include <unistd.h> 63187262Snwhitehorn#include "pathnames.h" 64187262Snwhitehorn 65187262Snwhitehornchar *qfname = QUOTAFILENAME; 66187262Snwhitehornchar *qfextension[] = INITQFNAMES; 67187262Snwhitehornchar *quotagroup = QUOTAGROUP; 68187262Snwhitehornchar tmpfil[] = _PATH_TMP; 69187262Snwhitehorn 70187262Snwhitehornstruct quotause { 71187262Snwhitehorn struct quotause *next; 72187262Snwhitehorn long flags; 73187262Snwhitehorn struct dqblk dqblk; 74187262Snwhitehorn char fsname[MAXPATHLEN + 1]; 75187262Snwhitehorn char qfname[1]; /* actually longer */ 76187262Snwhitehorn} *getprivs(); 77187262Snwhitehorn#define FOUND 0x01 78187262Snwhitehorn 79187262Snwhitehornmain(argc, argv) 80187262Snwhitehorn register char **argv; 81187262Snwhitehorn int argc; 82187262Snwhitehorn{ 83187262Snwhitehorn register struct quotause *qup, *protoprivs, *curprivs; 84187262Snwhitehorn extern char *optarg; 85187262Snwhitehorn extern int optind; 86187262Snwhitehorn register long id, protoid; 87187262Snwhitehorn register int quotatype, tmpfd; 88187262Snwhitehorn char *protoname, ch; 89187262Snwhitehorn int tflag = 0, pflag = 0; 90187262Snwhitehorn 91187262Snwhitehorn if (argc < 2) 92187262Snwhitehorn usage(); 93187262Snwhitehorn if (getuid()) { 94187262Snwhitehorn fprintf(stderr, "edquota: permission denied\n"); 95187262Snwhitehorn exit(1); 96187262Snwhitehorn } 97187262Snwhitehorn quotatype = USRQUOTA; 98187262Snwhitehorn while ((ch = getopt(argc, argv, "ugtp:")) != EOF) { 99187262Snwhitehorn switch(ch) { 100187262Snwhitehorn case 'p': 101187262Snwhitehorn protoname = optarg; 102187262Snwhitehorn pflag++; 103187262Snwhitehorn break; 104187262Snwhitehorn case 'g': 105187262Snwhitehorn quotatype = GRPQUOTA; 106187262Snwhitehorn break; 107187262Snwhitehorn case 'u': 108187262Snwhitehorn quotatype = USRQUOTA; 109187262Snwhitehorn break; 110187262Snwhitehorn case 't': 111187262Snwhitehorn tflag++; 112187262Snwhitehorn break; 113187262Snwhitehorn default: 114187262Snwhitehorn usage(); 115187262Snwhitehorn } 116187262Snwhitehorn } 117187262Snwhitehorn argc -= optind; 118187262Snwhitehorn argv += optind; 119187262Snwhitehorn if (pflag) { 120187262Snwhitehorn if ((protoid = getentry(protoname, quotatype)) == -1) 121187262Snwhitehorn exit(1); 122187262Snwhitehorn protoprivs = getprivs(protoid, quotatype); 123187262Snwhitehorn for (qup = protoprivs; qup; qup = qup->next) { 124187262Snwhitehorn qup->dqblk.dqb_btime = 0; 125187262Snwhitehorn qup->dqblk.dqb_itime = 0; 126187262Snwhitehorn } 127187262Snwhitehorn while (argc-- > 0) { 128187262Snwhitehorn if ((id = getentry(*argv++, quotatype)) < 0) 129187262Snwhitehorn continue; 130187262Snwhitehorn putprivs(id, quotatype, protoprivs); 131187262Snwhitehorn } 132187262Snwhitehorn exit(0); 133187262Snwhitehorn } 134187262Snwhitehorn tmpfd = mkstemp(tmpfil); 135187262Snwhitehorn fchown(tmpfd, getuid(), getgid()); 136187262Snwhitehorn if (tflag) { 137187262Snwhitehorn protoprivs = getprivs(0, quotatype); 138187262Snwhitehorn if (writetimes(protoprivs, tmpfd, quotatype) == 0) 139187262Snwhitehorn exit(1); 140187262Snwhitehorn if (editit(tmpfil) && readtimes(protoprivs, tmpfil)) 141187262Snwhitehorn putprivs(0, quotatype, protoprivs); 142187262Snwhitehorn freeprivs(protoprivs); 143187262Snwhitehorn exit(0); 144187262Snwhitehorn } 145187262Snwhitehorn for ( ; argc > 0; argc--, argv++) { 146187262Snwhitehorn if ((id = getentry(*argv, quotatype)) == -1) 147187262Snwhitehorn continue; 148187262Snwhitehorn curprivs = getprivs(id, quotatype); 149187262Snwhitehorn if (writeprivs(curprivs, tmpfd, *argv, quotatype) == 0) 150187262Snwhitehorn continue; 151187262Snwhitehorn if (editit(tmpfil) && readprivs(curprivs, tmpfil)) 152187262Snwhitehorn putprivs(id, quotatype, curprivs); 153187262Snwhitehorn freeprivs(curprivs); 154187262Snwhitehorn } 155187262Snwhitehorn close(tmpfd); 156187262Snwhitehorn unlink(tmpfil); 157187262Snwhitehorn exit(0); 158187262Snwhitehorn} 159187262Snwhitehorn 160187262Snwhitehornusage() 161187262Snwhitehorn{ 162187262Snwhitehorn fprintf(stderr, "%s%s%s%s", 163187262Snwhitehorn "Usage: edquota [-u] [-p username] username ...\n", 164187262Snwhitehorn "\tedquota -g [-p groupname] groupname ...\n", 165187262Snwhitehorn "\tedquota [-u] -t\n", "\tedquota -g -t\n"); 166187262Snwhitehorn exit(1); 167187262Snwhitehorn} 168187262Snwhitehorn 169187262Snwhitehorn/* 170187262Snwhitehorn * This routine converts a name for a particular quota type to 171187262Snwhitehorn * an identifier. This routine must agree with the kernel routine 172187262Snwhitehorn * getinoquota as to the interpretation of quota types. 173187262Snwhitehorn */ 174187262Snwhitehorngetentry(name, quotatype) 175187262Snwhitehorn char *name; 176187262Snwhitehorn int quotatype; 177187262Snwhitehorn{ 178187262Snwhitehorn struct passwd *pw; 179187262Snwhitehorn struct group *gr; 180187262Snwhitehorn 181187262Snwhitehorn if (alldigits(name)) 182187262Snwhitehorn return (atoi(name)); 183187262Snwhitehorn switch(quotatype) { 184187262Snwhitehorn case USRQUOTA: 185187262Snwhitehorn if (pw = getpwnam(name)) 186187262Snwhitehorn return (pw->pw_uid); 187187262Snwhitehorn fprintf(stderr, "%s: no such user\n", name); 188187262Snwhitehorn break; 189187262Snwhitehorn case GRPQUOTA: 190187262Snwhitehorn if (gr = getgrnam(name)) 191187262Snwhitehorn return (gr->gr_gid); 192187262Snwhitehorn fprintf(stderr, "%s: no such group\n", name); 193187262Snwhitehorn break; 194187262Snwhitehorn default: 195187262Snwhitehorn fprintf(stderr, "%d: unknown quota type\n", quotatype); 196187262Snwhitehorn break; 197187262Snwhitehorn } 198187262Snwhitehorn sleep(1); 199187262Snwhitehorn return (-1); 200187262Snwhitehorn} 201187262Snwhitehorn 202187262Snwhitehorn/* 203187262Snwhitehorn * Collect the requested quota information. 204187262Snwhitehorn */ 205187262Snwhitehornstruct quotause * 206187262Snwhitehorngetprivs(id, quotatype) 207187262Snwhitehorn register long id; 208187262Snwhitehorn int quotatype; 209187262Snwhitehorn{ 210187262Snwhitehorn register struct fstab *fs; 211187262Snwhitehorn register struct quotause *qup, *quptail; 212187262Snwhitehorn struct quotause *quphead; 213187262Snwhitehorn int qcmd, qupsize, fd; 214187262Snwhitehorn char *qfpathname; 215187262Snwhitehorn static int warned = 0; 216187262Snwhitehorn extern int errno; 217187262Snwhitehorn 218187262Snwhitehorn setfsent(); 219187262Snwhitehorn quphead = (struct quotause *)0; 220187262Snwhitehorn qcmd = QCMD(Q_GETQUOTA, quotatype); 221187262Snwhitehorn while (fs = getfsent()) { 222187262Snwhitehorn if (strcmp(fs->fs_vfstype, "ufs")) 223187262Snwhitehorn continue; 224187262Snwhitehorn if (!hasquota(fs, quotatype, &qfpathname)) 225187262Snwhitehorn continue; 226187262Snwhitehorn qupsize = sizeof(*qup) + strlen(qfpathname); 227187262Snwhitehorn if ((qup = (struct quotause *)malloc(qupsize)) == NULL) { 228187262Snwhitehorn fprintf(stderr, "edquota: out of memory\n"); 229187262Snwhitehorn exit(2); 230187262Snwhitehorn } 231187262Snwhitehorn if (quotactl(fs->fs_file, qcmd, id, &qup->dqblk) != 0) { 232187262Snwhitehorn if (errno == EOPNOTSUPP && !warned) { 233187262Snwhitehorn warned++; 234187262Snwhitehorn fprintf(stderr, "Warning: %s\n", 235187262Snwhitehorn "Quotas are not compiled into this kernel"); 236187262Snwhitehorn sleep(3); 237187262Snwhitehorn } 238187262Snwhitehorn if ((fd = open(qfpathname, O_RDONLY)) < 0) { 239187262Snwhitehorn fd = open(qfpathname, O_RDWR|O_CREAT, 0640); 240187262Snwhitehorn if (fd < 0 && errno != ENOENT) { 241187262Snwhitehorn perror(qfpathname); 242187262Snwhitehorn free(qup); 243187262Snwhitehorn continue; 244187262Snwhitehorn } 245187262Snwhitehorn fprintf(stderr, "Creating quota file %s\n", 246187262Snwhitehorn qfpathname); 247187262Snwhitehorn sleep(3); 248187262Snwhitehorn (void) fchown(fd, getuid(), 249187262Snwhitehorn getentry(quotagroup, GRPQUOTA)); 250187262Snwhitehorn (void) fchmod(fd, 0640); 251187262Snwhitehorn } 252187262Snwhitehorn lseek(fd, (long)(id * sizeof(struct dqblk)), L_SET); 253187262Snwhitehorn switch (read(fd, &qup->dqblk, sizeof(struct dqblk))) { 254187262Snwhitehorn case 0: /* EOF */ 255187262Snwhitehorn /* 256187262Snwhitehorn * Convert implicit 0 quota (EOF) 257187262Snwhitehorn * into an explicit one (zero'ed dqblk) 258187262Snwhitehorn */ 259187262Snwhitehorn bzero((caddr_t)&qup->dqblk, 260187262Snwhitehorn sizeof(struct dqblk)); 261187262Snwhitehorn break; 262187262Snwhitehorn 263187262Snwhitehorn case sizeof(struct dqblk): /* OK */ 264187262Snwhitehorn break; 265187262Snwhitehorn 266187262Snwhitehorn default: /* ERROR */ 267187262Snwhitehorn fprintf(stderr, "edquota: read error in "); 268187262Snwhitehorn perror(qfpathname); 269187262Snwhitehorn close(fd); 270187262Snwhitehorn free(qup); 271187262Snwhitehorn continue; 272187262Snwhitehorn } 273187262Snwhitehorn close(fd); 274187262Snwhitehorn } 275187262Snwhitehorn strcpy(qup->qfname, qfpathname); 276187262Snwhitehorn strcpy(qup->fsname, fs->fs_file); 277187262Snwhitehorn if (quphead == NULL) 278187262Snwhitehorn quphead = qup; 279187262Snwhitehorn else 280187262Snwhitehorn quptail->next = qup; 281187262Snwhitehorn quptail = qup; 282187262Snwhitehorn qup->next = 0; 283187262Snwhitehorn } 284187262Snwhitehorn endfsent(); 285187262Snwhitehorn return (quphead); 286187262Snwhitehorn} 287187262Snwhitehorn 288187262Snwhitehorn/* 289187262Snwhitehorn * Store the requested quota information. 290187262Snwhitehorn */ 291187262Snwhitehornputprivs(id, quotatype, quplist) 292187262Snwhitehorn long id; 293187262Snwhitehorn int quotatype; 294187262Snwhitehorn struct quotause *quplist; 295187262Snwhitehorn{ 296187262Snwhitehorn register struct quotause *qup; 297187262Snwhitehorn int qcmd, fd; 298187262Snwhitehorn 299187262Snwhitehorn qcmd = QCMD(Q_SETQUOTA, quotatype); 300187262Snwhitehorn for (qup = quplist; qup; qup = qup->next) { 301187262Snwhitehorn if (quotactl(qup->fsname, qcmd, id, &qup->dqblk) == 0) 302187262Snwhitehorn continue; 303187262Snwhitehorn if ((fd = open(qup->qfname, O_WRONLY)) < 0) { 304187262Snwhitehorn perror(qup->qfname); 305187262Snwhitehorn } else { 306187262Snwhitehorn lseek(fd, (long)id * (long)sizeof (struct dqblk), 0); 307187262Snwhitehorn if (write(fd, &qup->dqblk, sizeof (struct dqblk)) != 308187262Snwhitehorn sizeof (struct dqblk)) { 309187262Snwhitehorn fprintf(stderr, "edquota: "); 310187262Snwhitehorn perror(qup->qfname); 311187262Snwhitehorn } 312187262Snwhitehorn close(fd); 313187262Snwhitehorn } 314187262Snwhitehorn } 315187262Snwhitehorn} 316187262Snwhitehorn 317187262Snwhitehorn/* 318187262Snwhitehorn * Take a list of priviledges and get it edited. 319187262Snwhitehorn */ 320187262Snwhitehorneditit(tmpfile) 321187262Snwhitehorn char *tmpfile; 322187262Snwhitehorn{ 323187262Snwhitehorn long omask; 324187262Snwhitehorn int pid, stat; 325187262Snwhitehorn extern char *getenv(); 326187262Snwhitehorn 327187262Snwhitehorn omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); 328187262Snwhitehorn top: 329187262Snwhitehorn if ((pid = fork()) < 0) { 330187262Snwhitehorn extern errno; 331187262Snwhitehorn 332187262Snwhitehorn if (errno == EPROCLIM) { 333187262Snwhitehorn fprintf(stderr, "You have too many processes\n"); 334187262Snwhitehorn return(0); 335187262Snwhitehorn } 336187262Snwhitehorn if (errno == EAGAIN) { 337187262Snwhitehorn sleep(1); 338187262Snwhitehorn goto top; 339187262Snwhitehorn } 340187262Snwhitehorn perror("fork"); 341187262Snwhitehorn return (0); 342187262Snwhitehorn } 343187262Snwhitehorn if (pid == 0) { 344187262Snwhitehorn register char *ed; 345187262Snwhitehorn 346187262Snwhitehorn sigsetmask(omask); 347187262Snwhitehorn setgid(getgid()); 348187262Snwhitehorn setuid(getuid()); 349187262Snwhitehorn if ((ed = getenv("EDITOR")) == (char *)0) 350187262Snwhitehorn ed = _PATH_VI; 351187262Snwhitehorn execlp(ed, ed, tmpfile, 0); 352187262Snwhitehorn perror(ed); 353187262Snwhitehorn exit(1); 354187262Snwhitehorn } 355187262Snwhitehorn waitpid(pid, &stat, 0); 356187262Snwhitehorn sigsetmask(omask); 357187262Snwhitehorn if (!WIFEXITED(stat) || WEXITSTATUS(stat) != 0) 358187262Snwhitehorn return (0); 359187262Snwhitehorn return (1); 360187262Snwhitehorn} 361187262Snwhitehorn 362187262Snwhitehorn/* 363187262Snwhitehorn * Convert a quotause list to an ASCII file. 364187262Snwhitehorn */ 365187262Snwhitehornwriteprivs(quplist, outfd, name, quotatype) 366187262Snwhitehorn struct quotause *quplist; 367187262Snwhitehorn int outfd; 368187262Snwhitehorn char *name; 369187262Snwhitehorn int quotatype; 370187262Snwhitehorn{ 371187262Snwhitehorn register struct quotause *qup; 372187262Snwhitehorn FILE *fd; 373187262Snwhitehorn 374187262Snwhitehorn ftruncate(outfd, 0); 375187262Snwhitehorn lseek(outfd, 0, L_SET); 376187262Snwhitehorn if ((fd = fdopen(dup(outfd), "w")) == NULL) { 377187262Snwhitehorn fprintf(stderr, "edquota: "); 378187262Snwhitehorn perror(tmpfil); 379187262Snwhitehorn exit(1); 380187262Snwhitehorn } 381187262Snwhitehorn fprintf(fd, "Quotas for %s %s:\n", qfextension[quotatype], name); 382187262Snwhitehorn for (qup = quplist; qup; qup = qup->next) { 383187262Snwhitehorn fprintf(fd, "%s: %s %lu, limits (soft = %lu, hard = %lu)\n", 384187262Snwhitehorn qup->fsname, "blocks in use:", 385187262Snwhitehorn (unsigned long)(dbtob(qup->dqblk.dqb_curblocks) / 1024), 386187262Snwhitehorn (unsigned long)(dbtob(qup->dqblk.dqb_bsoftlimit) / 1024), 387187262Snwhitehorn (unsigned long)(dbtob(qup->dqblk.dqb_bhardlimit) / 1024)); 388187262Snwhitehorn fprintf(fd, "%s %lu, limits (soft = %lu, hard = %lu)\n", 389187262Snwhitehorn "\tinodes in use:", qup->dqblk.dqb_curinodes, 390187262Snwhitehorn qup->dqblk.dqb_isoftlimit, qup->dqblk.dqb_ihardlimit); 391187262Snwhitehorn } 392 fclose(fd); 393 return (1); 394} 395 396/* 397 * Merge changes to an ASCII file into a quotause list. 398 */ 399readprivs(quplist, inname) 400 struct quotause *quplist; 401 char *inname; 402{ 403 register struct quotause *qup; 404 FILE *fd; 405 int cnt; 406 register char *cp; 407 struct dqblk dqblk; 408 char *fsp, line1[BUFSIZ], line2[BUFSIZ]; 409 410 fd = fopen(inname, "r"); 411 if (fd == NULL) { 412 fprintf(stderr, "Can't re-read temp file!!\n"); 413 return (0); 414 } 415 /* 416 * Discard title line, then read pairs of lines to process. 417 */ 418 (void) fgets(line1, sizeof (line1), fd); 419 while (fgets(line1, sizeof (line1), fd) != NULL && 420 fgets(line2, sizeof (line2), fd) != NULL) { 421 if ((fsp = strtok(line1, " \t:")) == NULL) { 422 fprintf(stderr, "%s: bad format\n", line1); 423 return (0); 424 } 425 if ((cp = strtok((char *)0, "\n")) == NULL) { 426 fprintf(stderr, "%s: %s: bad format\n", fsp, 427 &fsp[strlen(fsp) + 1]); 428 return (0); 429 } 430 cnt = sscanf(cp, 431 " blocks in use: %lu, limits (soft = %lu, hard = %lu)", 432 &dqblk.dqb_curblocks, &dqblk.dqb_bsoftlimit, 433 &dqblk.dqb_bhardlimit); 434 if (cnt != 3) { 435 fprintf(stderr, "%s:%s: bad format\n", fsp, cp); 436 return (0); 437 } 438 dqblk.dqb_curblocks = btodb(dqblk.dqb_curblocks * 1024); 439 dqblk.dqb_bsoftlimit = btodb(dqblk.dqb_bsoftlimit * 1024); 440 dqblk.dqb_bhardlimit = btodb(dqblk.dqb_bhardlimit * 1024); 441 if ((cp = strtok(line2, "\n")) == NULL) { 442 fprintf(stderr, "%s: %s: bad format\n", fsp, line2); 443 return (0); 444 } 445 cnt = sscanf(cp, 446 "\tinodes in use: %lu, limits (soft = %lu, hard = %lu)", 447 &dqblk.dqb_curinodes, &dqblk.dqb_isoftlimit, 448 &dqblk.dqb_ihardlimit); 449 if (cnt != 3) { 450 fprintf(stderr, "%s: %s: bad format\n", fsp, line2); 451 return (0); 452 } 453 for (qup = quplist; qup; qup = qup->next) { 454 if (strcmp(fsp, qup->fsname)) 455 continue; 456 /* 457 * Cause time limit to be reset when the quota 458 * is next used if previously had no soft limit 459 * or were under it, but now have a soft limit 460 * and are over it. 461 */ 462 if (dqblk.dqb_bsoftlimit && 463 qup->dqblk.dqb_curblocks >= dqblk.dqb_bsoftlimit && 464 (qup->dqblk.dqb_bsoftlimit == 0 || 465 qup->dqblk.dqb_curblocks < 466 qup->dqblk.dqb_bsoftlimit)) 467 qup->dqblk.dqb_btime = 0; 468 if (dqblk.dqb_isoftlimit && 469 qup->dqblk.dqb_curinodes >= dqblk.dqb_isoftlimit && 470 (qup->dqblk.dqb_isoftlimit == 0 || 471 qup->dqblk.dqb_curinodes < 472 qup->dqblk.dqb_isoftlimit)) 473 qup->dqblk.dqb_itime = 0; 474 qup->dqblk.dqb_bsoftlimit = dqblk.dqb_bsoftlimit; 475 qup->dqblk.dqb_bhardlimit = dqblk.dqb_bhardlimit; 476 qup->dqblk.dqb_isoftlimit = dqblk.dqb_isoftlimit; 477 qup->dqblk.dqb_ihardlimit = dqblk.dqb_ihardlimit; 478 qup->flags |= FOUND; 479 if (dqblk.dqb_curblocks == qup->dqblk.dqb_curblocks && 480 dqblk.dqb_curinodes == qup->dqblk.dqb_curinodes) 481 break; 482 fprintf(stderr, 483 "%s: cannot change current allocation\n", fsp); 484 break; 485 } 486 } 487 fclose(fd); 488 /* 489 * Disable quotas for any filesystems that have not been found. 490 */ 491 for (qup = quplist; qup; qup = qup->next) { 492 if (qup->flags & FOUND) { 493 qup->flags &= ~FOUND; 494 continue; 495 } 496 qup->dqblk.dqb_bsoftlimit = 0; 497 qup->dqblk.dqb_bhardlimit = 0; 498 qup->dqblk.dqb_isoftlimit = 0; 499 qup->dqblk.dqb_ihardlimit = 0; 500 } 501 return (1); 502} 503 504/* 505 * Convert a quotause list to an ASCII file of grace times. 506 */ 507writetimes(quplist, outfd, quotatype) 508 struct quotause *quplist; 509 int outfd; 510 int quotatype; 511{ 512 register struct quotause *qup; 513 char *cvtstoa(); 514 FILE *fd; 515 516 ftruncate(outfd, 0); 517 lseek(outfd, 0, L_SET); 518 if ((fd = fdopen(dup(outfd), "w")) == NULL) { 519 fprintf(stderr, "edquota: "); 520 perror(tmpfil); 521 exit(1); 522 } 523 fprintf(fd, "Time units may be: days, hours, minutes, or seconds\n"); 524 fprintf(fd, "Grace period before enforcing soft limits for %ss:\n", 525 qfextension[quotatype]); 526 for (qup = quplist; qup; qup = qup->next) { 527 fprintf(fd, "%s: block grace period: %s, ", 528 qup->fsname, cvtstoa(qup->dqblk.dqb_btime)); 529 fprintf(fd, "file grace period: %s\n", 530 cvtstoa(qup->dqblk.dqb_itime)); 531 } 532 fclose(fd); 533 return (1); 534} 535 536/* 537 * Merge changes of grace times in an ASCII file into a quotause list. 538 */ 539readtimes(quplist, inname) 540 struct quotause *quplist; 541 char *inname; 542{ 543 register struct quotause *qup; 544 FILE *fd; 545 int cnt; 546 register char *cp; 547 time_t itime, btime, iseconds, bseconds; 548 char *fsp, bunits[10], iunits[10], line1[BUFSIZ]; 549 550 fd = fopen(inname, "r"); 551 if (fd == NULL) { 552 fprintf(stderr, "Can't re-read temp file!!\n"); 553 return (0); 554 } 555 /* 556 * Discard two title lines, then read lines to process. 557 */ 558 (void) fgets(line1, sizeof (line1), fd); 559 (void) fgets(line1, sizeof (line1), fd); 560 while (fgets(line1, sizeof (line1), fd) != NULL) { 561 if ((fsp = strtok(line1, " \t:")) == NULL) { 562 fprintf(stderr, "%s: bad format\n", line1); 563 return (0); 564 } 565 if ((cp = strtok((char *)0, "\n")) == NULL) { 566 fprintf(stderr, "%s: %s: bad format\n", fsp, 567 &fsp[strlen(fsp) + 1]); 568 return (0); 569 } 570 cnt = sscanf(cp, 571 " block grace period: %ld %s file grace period: %ld %s", 572 &btime, bunits, &itime, iunits); 573 if (cnt != 4) { 574 fprintf(stderr, "%s:%s: bad format\n", fsp, cp); 575 return (0); 576 } 577 if (cvtatos(btime, bunits, &bseconds) == 0) 578 return (0); 579 if (cvtatos(itime, iunits, &iseconds) == 0) 580 return (0); 581 for (qup = quplist; qup; qup = qup->next) { 582 if (strcmp(fsp, qup->fsname)) 583 continue; 584 qup->dqblk.dqb_btime = bseconds; 585 qup->dqblk.dqb_itime = iseconds; 586 qup->flags |= FOUND; 587 break; 588 } 589 } 590 fclose(fd); 591 /* 592 * reset default grace periods for any filesystems 593 * that have not been found. 594 */ 595 for (qup = quplist; qup; qup = qup->next) { 596 if (qup->flags & FOUND) { 597 qup->flags &= ~FOUND; 598 continue; 599 } 600 qup->dqblk.dqb_btime = 0; 601 qup->dqblk.dqb_itime = 0; 602 } 603 return (1); 604} 605 606/* 607 * Convert seconds to ASCII times. 608 */ 609char * 610cvtstoa(time) 611 time_t time; 612{ 613 static char buf[20]; 614 615 if (time % (24 * 60 * 60) == 0) { 616 time /= 24 * 60 * 60; 617 sprintf(buf, "%ld day%s", time, time == 1 ? "" : "s"); 618 } else if (time % (60 * 60) == 0) { 619 time /= 60 * 60; 620 sprintf(buf, "%ld hour%s", time, time == 1 ? "" : "s"); 621 } else if (time % 60 == 0) { 622 time /= 60; 623 sprintf(buf, "%ld minute%s", time, time == 1 ? "" : "s"); 624 } else 625 sprintf(buf, "%ld second%s", time, time == 1 ? "" : "s"); 626 return (buf); 627} 628 629/* 630 * Convert ASCII input times to seconds. 631 */ 632cvtatos(time, units, seconds) 633 time_t time; 634 char *units; 635 time_t *seconds; 636{ 637 638 if (bcmp(units, "second", 6) == 0) 639 *seconds = time; 640 else if (bcmp(units, "minute", 6) == 0) 641 *seconds = time * 60; 642 else if (bcmp(units, "hour", 4) == 0) 643 *seconds = time * 60 * 60; 644 else if (bcmp(units, "day", 3) == 0) 645 *seconds = time * 24 * 60 * 60; 646 else { 647 printf("%s: bad units, specify %s\n", units, 648 "days, hours, minutes, or seconds"); 649 return (0); 650 } 651 return (1); 652} 653 654/* 655 * Free a list of quotause structures. 656 */ 657freeprivs(quplist) 658 struct quotause *quplist; 659{ 660 register struct quotause *qup, *nextqup; 661 662 for (qup = quplist; qup; qup = nextqup) { 663 nextqup = qup->next; 664 free(qup); 665 } 666} 667 668/* 669 * Check whether a string is completely composed of digits. 670 */ 671alldigits(s) 672 register char *s; 673{ 674 register c; 675 676 c = *s++; 677 do { 678 if (!isdigit(c)) 679 return (0); 680 } while (c = *s++); 681 return (1); 682} 683 684/* 685 * Check to see if a particular quota is to be enabled. 686 */ 687hasquota(fs, type, qfnamep) 688 register struct fstab *fs; 689 int type; 690 char **qfnamep; 691{ 692 register char *opt; 693 char *cp, *index(), *strtok(); 694 static char initname, usrname[100], grpname[100]; 695 static char buf[BUFSIZ]; 696 697 if (!initname) { 698 sprintf(usrname, "%s%s", qfextension[USRQUOTA], qfname); 699 sprintf(grpname, "%s%s", qfextension[GRPQUOTA], qfname); 700 initname = 1; 701 } 702 strcpy(buf, fs->fs_mntops); 703 for (opt = strtok(buf, ","); opt; opt = strtok(NULL, ",")) { 704 if (cp = index(opt, '=')) 705 *cp++ = '\0'; 706 if (type == USRQUOTA && strcmp(opt, usrname) == 0) 707 break; 708 if (type == GRPQUOTA && strcmp(opt, grpname) == 0) 709 break; 710 } 711 if (!opt) 712 return (0); 713 if (cp) { 714 *qfnamep = cp; 715 return (1); 716 } 717 (void) sprintf(buf, "%s/%s.%s", fs->fs_file, qfname, qfextension[type]); 718 *qfnamep = buf; 719 return (1); 720} 721