1 /**
2 * collectd - src/utils_mount.c
3 * Copyright (C) 2005,2006 Niki W. Waibel
4 *
5 * This program is free software; you can redistribute it and/
6 * or modify it under the terms of the GNU General Public Li-
7 * cence as published by the Free Software Foundation; either
8 * version 2 of the Licence, or any later version.
9 *
10 * This program is distributed in the hope that it will be use-
11 * ful, but WITHOUT ANY WARRANTY; without even the implied war-
12 * ranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 * See the GNU General Public Licence for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 *
19 * Author:
20 * Niki W. Waibel <niki.waibel@gmx.net>
21 **/
23 #if HAVE_CONFIG_H
24 #include "config.h"
25 #endif
27 #define _GNU_SOURCE
29 #include "collectd.h"
31 #include "utils_mount.h"
33 #if HAVE_XFS_XQM_H
34 #include <xfs/xqm.h>
35 #define XFS_SUPER_MAGIC_STR "XFSB"
36 #define XFS_SUPER_MAGIC2_STR "BSFX"
37 #endif
39 #include "common.h" /* sstrncpy() et alii */
40 #include "plugin.h" /* ERROR() macro */
42 #if HAVE_GETVFSSTAT
43 #if HAVE_SYS_TYPES_H
44 #include <sys/types.h>
45 #endif
46 #if HAVE_SYS_STATVFS_H
47 #include <sys/statvfs.h>
48 #endif
49 /* #endif HAVE_GETVFSSTAT */
51 #elif HAVE_GETFSSTAT
52 #if HAVE_SYS_PARAM_H
53 #include <sys/param.h>
54 #endif
55 #if HAVE_SYS_UCRED_H
56 #include <sys/ucred.h>
57 #endif
58 #if HAVE_SYS_MOUNT_H
59 #include <sys/mount.h>
60 #endif
61 #endif /* HAVE_GETFSSTAT */
63 #if HAVE_MNTENT_H
64 #include <mntent.h>
65 #endif
66 #if HAVE_SYS_MNTTAB_H
67 #include <sys/mnttab.h>
68 #endif
70 #if HAVE_PATHS_H
71 #include <paths.h>
72 #endif
74 #ifdef COLLECTD_MNTTAB
75 #undef COLLECTD_MNTTAB
76 #endif
78 #if defined(_PATH_MOUNTED) /* glibc */
79 #define COLLECTD_MNTTAB _PATH_MOUNTED
80 #elif defined(MNTTAB) /* Solaris */
81 #define COLLECTD_MNTTAB MNTTAB
82 #elif defined(MNT_MNTTAB)
83 #define COLLECTD_MNTTAB MNT_MNTTAB
84 #elif defined(MNTTABNAME)
85 #define COLLECTD_MNTTAB MNTTABNAME
86 #elif defined(KMTAB)
87 #define COLLECTD_MNTTAB KMTAB
88 #else
89 #define COLLECTD_MNTTAB "/etc/mnttab"
90 #endif
92 /* *** *** *** ********************************************* *** *** *** */
93 /* *** *** *** *** *** *** private functions *** *** *** *** *** *** */
94 /* *** *** *** ********************************************* *** *** *** */
96 /* stolen from quota-3.13 (quota-tools) */
98 #define PROC_PARTITIONS "/proc/partitions"
99 #define DEVLABELDIR "/dev"
100 #define UUID 1
101 #define VOL 2
103 static struct uuidCache_s {
104 struct uuidCache_s *next;
105 char uuid[16];
106 char *label;
107 char *device;
108 } *uuidCache = NULL;
110 #define EXT2_SUPER_MAGIC 0xEF53
111 struct ext2_super_block {
112 unsigned char s_dummy1[56];
113 unsigned char s_magic[2];
114 unsigned char s_dummy2[46];
115 unsigned char s_uuid[16];
116 char s_volume_name[16];
117 };
118 #define ext2magic(s) \
119 ((unsigned int)s.s_magic[0] + (((unsigned int)s.s_magic[1]) << 8))
121 #if HAVE_XFS_XQM_H
122 struct xfs_super_block {
123 unsigned char s_magic[4];
124 unsigned char s_dummy[28];
125 unsigned char s_uuid[16];
126 unsigned char s_dummy2[60];
127 char s_fsname[12];
128 };
129 #endif /* HAVE_XFS_XQM_H */
131 #define REISER_SUPER_MAGIC "ReIsEr2Fs"
132 struct reiserfs_super_block {
133 unsigned char s_dummy1[52];
134 unsigned char s_magic[10];
135 unsigned char s_dummy2[22];
136 unsigned char s_uuid[16];
137 char s_volume_name[16];
138 };
140 /* for now, only ext2 and xfs are supported */
141 static int get_label_uuid(const char *device, char **label, char *uuid) {
142 /* start with ext2 and xfs tests, taken from mount_guess_fstype */
143 /* should merge these later */
144 int fd, rv = 1;
145 size_t namesize;
146 struct ext2_super_block e2sb;
147 #if HAVE_XFS_XQM_H
148 struct xfs_super_block xfsb;
149 #endif
150 struct reiserfs_super_block reisersb;
152 fd = open(device, O_RDONLY);
153 if (fd == -1) {
154 return rv;
155 }
157 if (lseek(fd, 1024, SEEK_SET) == 1024 &&
158 read(fd, (char *)&e2sb, sizeof(e2sb)) == sizeof(e2sb) &&
159 ext2magic(e2sb) == EXT2_SUPER_MAGIC) {
160 memcpy(uuid, e2sb.s_uuid, sizeof(e2sb.s_uuid));
161 namesize = sizeof(e2sb.s_volume_name);
162 *label = smalloc(namesize + 1);
163 sstrncpy(*label, e2sb.s_volume_name, namesize);
164 rv = 0;
165 #if HAVE_XFS_XQM_H
166 } else if (lseek(fd, 0, SEEK_SET) == 0 &&
167 read(fd, (char *)&xfsb, sizeof(xfsb)) == sizeof(xfsb) &&
168 (strncmp((char *)&xfsb.s_magic, XFS_SUPER_MAGIC_STR, 4) == 0 ||
169 strncmp((char *)&xfsb.s_magic, XFS_SUPER_MAGIC2_STR, 4) == 0)) {
170 memcpy(uuid, xfsb.s_uuid, sizeof(xfsb.s_uuid));
171 namesize = sizeof(xfsb.s_fsname);
172 *label = smalloc(namesize + 1);
173 sstrncpy(*label, xfsb.s_fsname, namesize);
174 rv = 0;
175 #endif /* HAVE_XFS_XQM_H */
176 } else if (lseek(fd, 65536, SEEK_SET) == 65536 &&
177 read(fd, (char *)&reisersb, sizeof(reisersb)) ==
178 sizeof(reisersb) &&
179 !strncmp((char *)&reisersb.s_magic, REISER_SUPER_MAGIC, 9)) {
180 memcpy(uuid, reisersb.s_uuid, sizeof(reisersb.s_uuid));
181 namesize = sizeof(reisersb.s_volume_name);
182 *label = smalloc(namesize + 1);
183 sstrncpy(*label, reisersb.s_volume_name, namesize);
184 rv = 0;
185 }
186 close(fd);
187 return rv;
188 }
190 static void uuidcache_addentry(char *device, char *label, char *uuid) {
191 struct uuidCache_s *last;
193 if (!uuidCache) {
194 last = uuidCache = smalloc(sizeof(*uuidCache));
195 } else {
196 for (last = uuidCache; last->next; last = last->next)
197 ;
198 last->next = smalloc(sizeof(*uuidCache));
199 last = last->next;
200 }
201 last->next = NULL;
202 last->device = device;
203 last->label = label;
204 memcpy(last->uuid, uuid, sizeof(last->uuid));
205 }
207 static void uuidcache_init(void) {
208 char line[100];
209 char *s;
210 int ma, mi, sz;
211 static char ptname[100];
212 FILE *procpt;
213 char uuid[16], *label = NULL;
214 char device[110];
215 int handleOnFirst;
217 if (uuidCache) {
218 return;
219 }
221 procpt = fopen(PROC_PARTITIONS, "r");
222 if (procpt == NULL) {
223 return;
224 }
226 for (int firstPass = 1; firstPass >= 0; firstPass--) {
227 fseek(procpt, 0, SEEK_SET);
228 while (fgets(line, sizeof(line), procpt)) {
229 if (sscanf(line, " %d %d %d %[^\n ]", &ma, &mi, &sz, ptname) != 4) {
230 continue;
231 }
233 /* skip extended partitions (heuristic: size 1) */
234 if (sz == 1) {
235 continue;
236 }
238 /* look only at md devices on first pass */
239 handleOnFirst = !strncmp(ptname, "md", 2);
240 if (firstPass != handleOnFirst) {
241 continue;
242 }
244 /* skip entire disk (minor 0, 64, ... on ide;
245 0, 16, ... on sd) */
246 /* heuristic: partition name ends in a digit */
248 for (s = ptname; *s; s++)
249 ;
251 if (isdigit((int)s[-1])) {
252 /*
253 * Note: this is a heuristic only - there is no reason
254 * why these devices should live in /dev.
255 * Perhaps this directory should be specifiable by option.
256 * One might for example have /devlabel with links to /dev
257 * for the devices that may be accessed in this way.
258 * (This is useful, if the cdrom on /dev/hdc must not
259 * be accessed.)
260 */
261 ssnprintf(device, sizeof(device), "%s/%s", DEVLABELDIR, ptname);
262 if (!get_label_uuid(device, &label, uuid)) {
263 uuidcache_addentry(sstrdup(device), label, uuid);
264 }
265 }
266 }
267 }
268 fclose(procpt);
269 }
271 static unsigned char fromhex(char c) {
272 if (isdigit((int)c)) {
273 return (c - '0');
274 } else if (islower((int)c)) {
275 return (c - 'a' + 10);
276 } else {
277 return (c - 'A' + 10);
278 }
279 }
281 static char *get_spec_by_x(int n, const char *t) {
282 struct uuidCache_s *uc;
284 uuidcache_init();
285 uc = uuidCache;
287 while (uc) {
288 switch (n) {
289 case UUID:
290 if (!memcmp(t, uc->uuid, sizeof(uc->uuid))) {
291 return sstrdup(uc->device);
292 }
293 break;
294 case VOL:
295 if (!strcmp(t, uc->label)) {
296 return sstrdup(uc->device);
297 }
298 break;
299 }
300 uc = uc->next;
301 }
302 return NULL;
303 }
305 static char *get_spec_by_uuid(const char *s) {
306 char uuid[16];
308 if (strlen(s) != 36 || s[8] != '-' || s[13] != '-' || s[18] != '-' ||
309 s[23] != '-') {
310 goto bad_uuid;
311 }
313 for (int i = 0; i < 16; i++) {
314 if (*s == '-') {
315 s++;
316 }
317 if (!isxdigit((int)s[0]) || !isxdigit((int)s[1])) {
318 goto bad_uuid;
319 }
320 uuid[i] = ((fromhex(s[0]) << 4) | fromhex(s[1]));
321 s += 2;
322 }
323 return get_spec_by_x(UUID, uuid);
325 bad_uuid:
326 DEBUG("utils_mount: Found an invalid UUID: %s", s);
327 return NULL;
328 }
330 static char *get_spec_by_volume_label(const char *s) {
331 return get_spec_by_x(VOL, s);
332 }
334 static char *get_device_name(const char *optstr) {
335 char *rc;
337 if (optstr == NULL) {
338 return (NULL);
339 } else if (strncmp(optstr, "UUID=", 5) == 0) {
340 DEBUG("utils_mount: TODO: check UUID= code!");
341 rc = get_spec_by_uuid(optstr + 5);
342 } else if (strncmp(optstr, "LABEL=", 6) == 0) {
343 DEBUG("utils_mount: TODO: check LABEL= code!");
344 rc = get_spec_by_volume_label(optstr + 6);
345 } else {
346 rc = sstrdup(optstr);
347 }
349 if (!rc) {
350 DEBUG("utils_mount: Error checking device name: optstr = %s", optstr);
351 }
352 return rc;
353 }
355 /* What weird OS is this..? I can't find any info with google :/ -octo */
356 #if HAVE_LISTMNTENT && 0
357 static cu_mount_t *cu_mount_listmntent(void) {
358 cu_mount_t *last = *list;
359 struct mntent *mnt;
361 struct tabmntent *mntlist;
362 if (listmntent(&mntlist, COLLECTD_MNTTAB, NULL, NULL) < 0) {
363 #if COLLECT_DEBUG
364 char errbuf[1024];
365 DEBUG("utils_mount: calling listmntent() failed: %s",
366 sstrerror(errno, errbuf, sizeof(errbuf)));
367 #endif /* COLLECT_DEBUG */
368 }
370 for (struct tabmntent *p = mntlist; p; p = p->next) {
371 char *loop = NULL, *device = NULL;
373 mnt = p->ment;
374 loop = cu_mount_getoptionvalue(mnt->mnt_opts, "loop=");
375 if (loop == NULL) { /* no loop= mount */
376 device = get_device_name(mnt->mnt_fsname);
377 if (device == NULL) {
378 DEBUG("utils_mount: can't get devicename for fs (%s) %s (%s)"
379 ": ignored",
380 mnt->mnt_type, mnt->mnt_dir, mnt->mnt_fsname);
381 continue;
382 }
383 } else {
384 device = loop;
385 }
386 if (*list == NULL) {
387 *list = (cu_mount_t *)smalloc(sizeof(cu_mount_t));
388 last = *list;
389 } else {
390 while (last->next != NULL) { /* is last really last? */
391 last = last->next;
392 }
393 last->next = (cu_mount_t *)smalloc(sizeof(cu_mount_t));
394 last = last->next;
395 }
396 last->dir = sstrdup(mnt->mnt_dir);
397 last->spec_device = sstrdup(mnt->mnt_fsname);
398 last->device = device;
399 last->type = sstrdup(mnt->mnt_type);
400 last->options = sstrdup(mnt->mnt_opts);
401 last->next = NULL;
402 } /* for(p = mntlist; p; p = p->next) */
404 return (last);
405 } /* cu_mount_t *cu_mount_listmntent(void) */
406 /* #endif HAVE_LISTMNTENT */
408 /* 4.4BSD and Mac OS X (getfsstat) or NetBSD (getvfsstat) */
409 #elif HAVE_GETVFSSTAT || HAVE_GETFSSTAT
410 static cu_mount_t *cu_mount_getfsstat(void) {
411 #if HAVE_GETFSSTAT
412 #define STRUCT_STATFS struct statfs
413 #define CMD_STATFS getfsstat
414 #define FLAGS_STATFS MNT_NOWAIT
415 /* #endif HAVE_GETFSSTAT */
416 #elif HAVE_GETVFSSTAT
417 #define STRUCT_STATFS struct statvfs
418 #define CMD_STATFS getvfsstat
419 #define FLAGS_STATFS ST_NOWAIT
420 #endif /* HAVE_GETVFSSTAT */
422 int bufsize;
423 STRUCT_STATFS *buf;
425 int num;
427 cu_mount_t *first = NULL;
428 cu_mount_t *last = NULL;
429 cu_mount_t *new = NULL;
431 /* Get the number of mounted file systems */
432 if ((bufsize = CMD_STATFS(NULL, 0, FLAGS_STATFS)) < 1) {
433 #if COLLECT_DEBUG
434 char errbuf[1024];
435 DEBUG("utils_mount: getv?fsstat failed: %s",
436 sstrerror(errno, errbuf, sizeof(errbuf)));
437 #endif /* COLLECT_DEBUG */
438 return (NULL);
439 }
441 if ((buf = calloc(bufsize, sizeof(*buf))) == NULL)
442 return (NULL);
444 /* The bufsize needs to be passed in bytes. Really. This is not in the
445 * manpage.. -octo */
446 if ((num = CMD_STATFS(buf, bufsize * sizeof(STRUCT_STATFS), FLAGS_STATFS)) <
447 1) {
448 #if COLLECT_DEBUG
449 char errbuf[1024];
450 DEBUG("utils_mount: getv?fsstat failed: %s",
451 sstrerror(errno, errbuf, sizeof(errbuf)));
452 #endif /* COLLECT_DEBUG */
453 free(buf);
454 return (NULL);
455 }
457 for (int i = 0; i < num; i++) {
458 if ((new = calloc(1, sizeof(*new))) == NULL)
459 break;
461 /* Copy values from `struct mnttab' */
462 new->dir = sstrdup(buf[i].f_mntonname);
463 new->spec_device = sstrdup(buf[i].f_mntfromname);
464 new->type = sstrdup(buf[i].f_fstypename);
465 new->options = NULL;
466 new->device = get_device_name(new->options);
467 new->next = NULL;
469 /* Append to list */
470 if (first == NULL) {
471 first = new;
472 last = new;
473 } else {
474 last->next = new;
475 last = new;
476 }
477 }
479 free(buf);
481 return (first);
482 }
483 /* #endif HAVE_GETVFSSTAT || HAVE_GETFSSTAT */
485 /* Solaris (SunOS 10): int getmntent(FILE *fp, struct mnttab *mp); */
486 #elif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT
487 static cu_mount_t *cu_mount_gen_getmntent(void) {
488 struct mnttab mt;
489 FILE *fp;
491 cu_mount_t *first = NULL;
492 cu_mount_t *last = NULL;
493 cu_mount_t *new = NULL;
495 DEBUG("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
497 if ((fp = fopen(COLLECTD_MNTTAB, "r")) == NULL) {
498 char errbuf[1024];
499 ERROR("fopen (%s): %s", COLLECTD_MNTTAB,
500 sstrerror(errno, errbuf, sizeof(errbuf)));
501 return (NULL);
502 }
504 while (getmntent(fp, &mt) == 0) {
505 if ((new = calloc(1, sizeof(*new))) == NULL)
506 break;
508 /* Copy values from `struct mnttab' */
509 new->dir = sstrdup(mt.mnt_mountp);
510 new->spec_device = sstrdup(mt.mnt_special);
511 new->type = sstrdup(mt.mnt_fstype);
512 new->options = sstrdup(mt.mnt_mntopts);
513 new->device = get_device_name(new->options);
514 new->next = NULL;
516 /* Append to list */
517 if (first == NULL) {
518 first = new;
519 last = new;
520 } else {
521 last->next = new;
522 last = new;
523 }
524 }
526 fclose(fp);
528 return (first);
529 } /* static cu_mount_t *cu_mount_gen_getmntent (void) */
530 /* #endif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT */
532 #elif HAVE_SEQ_GETMNTENT
533 #warn "This version of `getmntent' hat not yet been implemented!"
534 /* #endif HAVE_SEQ_GETMNTENT */
536 #elif HAVE_GETMNTENT_R
537 static cu_mount_t *cu_mount_getmntent(void) {
538 FILE *fp;
539 struct mntent me;
540 char mntbuf[1024];
542 cu_mount_t *first = NULL;
543 cu_mount_t *last = NULL;
544 cu_mount_t *new = NULL;
546 DEBUG("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
548 if ((fp = setmntent(COLLECTD_MNTTAB, "r")) == NULL) {
549 char errbuf[1024];
550 ERROR("setmntent (%s): %s", COLLECTD_MNTTAB,
551 sstrerror(errno, errbuf, sizeof(errbuf)));
552 return (NULL);
553 }
555 while (getmntent_r(fp, &me, mntbuf, sizeof(mntbuf))) {
556 if ((new = calloc(1, sizeof(*new))) == NULL)
557 break;
559 /* Copy values from `struct mntent *' */
560 new->dir = sstrdup(me.mnt_dir);
561 new->spec_device = sstrdup(me.mnt_fsname);
562 new->type = sstrdup(me.mnt_type);
563 new->options = sstrdup(me.mnt_opts);
564 new->device = get_device_name(new->options);
565 new->next = NULL;
567 DEBUG("utils_mount: new = {dir = %s, spec_device = %s, type = %s, options "
568 "= %s, device = %s}",
569 new->dir, new->spec_device, new->type, new->options, new->device);
571 /* Append to list */
572 if (first == NULL) {
573 first = new;
574 last = new;
575 } else {
576 last->next = new;
577 last = new;
578 }
579 }
581 endmntent(fp);
583 DEBUG("utils_mount: return (0x%p)", (void *)first);
585 return (first);
586 } /* HAVE_GETMNTENT_R */
588 #elif HAVE_ONE_GETMNTENT
589 static cu_mount_t *cu_mount_getmntent(void) {
590 FILE *fp;
591 struct mntent *me;
593 cu_mount_t *first = NULL;
594 cu_mount_t *last = NULL;
595 cu_mount_t *new = NULL;
597 DEBUG("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
599 if ((fp = setmntent(COLLECTD_MNTTAB, "r")) == NULL) {
600 char errbuf[1024];
601 ERROR("setmntent (%s): %s", COLLECTD_MNTTAB,
602 sstrerror(errno, errbuf, sizeof(errbuf)));
603 return (NULL);
604 }
606 while ((me = getmntent(fp)) != NULL) {
607 if ((new = calloc(1, sizeof(*new))) == NULL)
608 break;
610 /* Copy values from `struct mntent *' */
611 new->dir = sstrdup(me->mnt_dir);
612 new->spec_device = sstrdup(me->mnt_fsname);
613 new->type = sstrdup(me->mnt_type);
614 new->options = sstrdup(me->mnt_opts);
615 new->device = get_device_name(new->options);
616 new->next = NULL;
618 DEBUG("utils_mount: new = {dir = %s, spec_device = %s, type = %s, options "
619 "= %s, device = %s}",
620 new->dir, new->spec_device, new->type, new->options, new->device);
622 /* Append to list */
623 if (first == NULL) {
624 first = new;
625 last = new;
626 } else {
627 last->next = new;
628 last = new;
629 }
630 }
632 endmntent(fp);
634 DEBUG("utils_mount: return (0x%p)", (void *)first);
636 return (first);
637 }
638 #endif /* HAVE_ONE_GETMNTENT */
640 /* *** *** *** ******************************************** *** *** *** */
641 /* *** *** *** *** *** *** public functions *** *** *** *** *** *** */
642 /* *** *** *** ******************************************** *** *** *** */
644 cu_mount_t *cu_mount_getlist(cu_mount_t **list) {
645 cu_mount_t *new;
646 cu_mount_t *first = NULL;
647 cu_mount_t *last = NULL;
649 if (list == NULL)
650 return (NULL);
652 if (*list != NULL) {
653 first = *list;
654 last = first;
655 while (last->next != NULL)
656 last = last->next;
657 }
659 #if HAVE_LISTMNTENT && 0
660 new = cu_mount_listmntent();
661 #elif HAVE_GETVFSSTAT || HAVE_GETFSSTAT
662 new = cu_mount_getfsstat();
663 #elif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT
664 new = cu_mount_gen_getmntent();
665 #elif HAVE_SEQ_GETMNTENT
666 #error "This version of `getmntent' hat not yet been implemented!"
667 #elif HAVE_ONE_GETMNTENT
668 new = cu_mount_getmntent();
669 #else
670 #error "Could not determine how to find mountpoints."
671 #endif
673 if (first != NULL) {
674 last->next = new;
675 } else {
676 first = new;
677 last = new;
678 *list = first;
679 }
681 while ((last != NULL) && (last->next != NULL))
682 last = last->next;
684 return (last);
685 } /* cu_mount_t *cu_mount_getlist(cu_mount_t **list) */
687 void cu_mount_freelist(cu_mount_t *list) {
688 cu_mount_t *next;
690 for (cu_mount_t *this = list; this != NULL; this = next) {
691 next = this->next;
693 sfree(this->dir);
694 sfree(this->spec_device);
695 sfree(this->device);
696 sfree(this->type);
697 sfree(this->options);
698 sfree(this);
699 }
700 } /* void cu_mount_freelist(cu_mount_t *list) */
702 char *cu_mount_checkoption(char *line, const char *keyword, int full) {
703 char *line2, *l2, *p1, *p2;
704 int l;
706 if (line == NULL || keyword == NULL) {
707 return NULL;
708 }
710 if (full != 0) {
711 full = 1;
712 }
714 line2 = sstrdup(line);
715 l2 = line2;
716 while (*l2 != '\0') {
717 if (*l2 == ',') {
718 *l2 = '\0';
719 }
720 l2++;
721 }
723 l = strlen(keyword);
724 p1 = line - 1;
725 p2 = strchr(line, ',');
726 do {
727 if (strncmp(line2 + (p1 - line) + 1, keyword, l + full) == 0) {
728 free(line2);
729 return p1 + 1;
730 }
731 p1 = p2;
732 if (p1 != NULL) {
733 p2 = strchr(p1 + 1, ',');
734 }
735 } while (p1 != NULL);
737 free(line2);
738 return NULL;
739 } /* char *cu_mount_checkoption(char *line, char *keyword, int full) */
741 char *cu_mount_getoptionvalue(char *line, const char *keyword) {
742 char *r;
744 r = cu_mount_checkoption(line, keyword, 0);
745 if (r != NULL) {
746 char *p;
747 r += strlen(keyword);
748 p = strchr(r, ',');
749 if (p == NULL) {
750 return sstrdup(r);
751 } else {
752 char *m;
753 if ((p - r) == 1) {
754 return NULL;
755 }
756 m = smalloc(p - r + 1);
757 sstrncpy(m, r, p - r + 1);
758 return m;
759 }
760 }
761 return r;
762 } /* char *cu_mount_getoptionvalue(char *line, const char *keyword) */
764 int cu_mount_type(const char *type) {
765 if (strcmp(type, "ext3") == 0)
766 return CUMT_EXT3;
767 if (strcmp(type, "ext2") == 0)
768 return CUMT_EXT2;
769 if (strcmp(type, "ufs") == 0)
770 return CUMT_UFS;
771 if (strcmp(type, "vxfs") == 0)
772 return CUMT_VXFS;
773 if (strcmp(type, "zfs") == 0)
774 return CUMT_ZFS;
775 return CUMT_UNKNOWN;
776 } /* int cu_mount_type(const char *type) */