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 */
43 #if HAVE_GETVFSSTAT
44 # if HAVE_SYS_TYPES_H
45 # include <sys/types.h>
46 # endif
47 # if HAVE_SYS_STATVFS_H
48 # include <sys/statvfs.h>
49 # endif
50 /* #endif HAVE_GETVFSSTAT */
52 #elif HAVE_GETFSSTAT
53 # if HAVE_SYS_PARAM_H
54 # include <sys/param.h>
55 # endif
56 # if HAVE_SYS_UCRED_H
57 # include <sys/ucred.h>
58 # endif
59 # if HAVE_SYS_MOUNT_H
60 # include <sys/mount.h>
61 # endif
62 #endif /* HAVE_GETFSSTAT */
64 #if HAVE_MNTENT_H
65 # include <mntent.h>
66 #endif
67 #if HAVE_SYS_MNTTAB_H
68 # include <sys/mnttab.h>
69 #endif
71 #if HAVE_PATHS_H
72 # include <paths.h>
73 #endif
75 #ifdef COLLECTD_MNTTAB
76 # undef COLLECTD_MNTTAB
77 #endif
79 #if defined(_PATH_MOUNTED) /* glibc */
80 # define COLLECTD_MNTTAB _PATH_MOUNTED
81 #elif defined(MNTTAB) /* Solaris */
82 # define COLLECTD_MNTTAB MNTTAB
83 #elif defined(MNT_MNTTAB)
84 # define COLLECTD_MNTTAB MNT_MNTTAB
85 #elif defined(MNTTABNAME)
86 # define COLLECTD_MNTTAB MNTTABNAME
87 #elif defined(KMTAB)
88 # define COLLECTD_MNTTAB KMTAB
89 #else
90 # define COLLECTD_MNTTAB "/etc/mnttab"
91 #endif
93 /* *** *** *** ********************************************* *** *** *** */
94 /* *** *** *** *** *** *** private functions *** *** *** *** *** *** */
95 /* *** *** *** ********************************************* *** *** *** */
97 /* stolen from quota-3.13 (quota-tools) */
99 #define PROC_PARTITIONS "/proc/partitions"
100 #define DEVLABELDIR "/dev"
101 #define UUID 1
102 #define VOL 2
104 static struct uuidCache_s {
105 struct uuidCache_s *next;
106 char uuid[16];
107 char *label;
108 char *device;
109 } *uuidCache = NULL;
111 #define EXT2_SUPER_MAGIC 0xEF53
112 struct ext2_super_block {
113 unsigned char s_dummy1[56];
114 unsigned char s_magic[2];
115 unsigned char s_dummy2[46];
116 unsigned char s_uuid[16];
117 char s_volume_name[16];
118 };
119 #define ext2magic(s) ((unsigned int)s.s_magic[0] \
120 + (((unsigned int)s.s_magic[1]) << 8))
122 #if HAVE_XFS_XQM_H
123 struct xfs_super_block {
124 unsigned char s_magic[4];
125 unsigned char s_dummy[28];
126 unsigned char s_uuid[16];
127 unsigned char s_dummy2[60];
128 char s_fsname[12];
129 };
130 #endif /* HAVE_XFS_XQM_H */
132 #define REISER_SUPER_MAGIC "ReIsEr2Fs"
133 struct reiserfs_super_block {
134 unsigned char s_dummy1[52];
135 unsigned char s_magic[10];
136 unsigned char s_dummy2[22];
137 unsigned char s_uuid[16];
138 char s_volume_name[16];
139 };
141 /* for now, only ext2 and xfs are supported */
142 static int
143 get_label_uuid(const char *device, char **label, char *uuid)
144 {
145 /* start with ext2 and xfs tests, taken from mount_guess_fstype */
146 /* should merge these later */
147 int fd, rv = 1;
148 size_t namesize;
149 struct ext2_super_block e2sb;
150 #if HAVE_XFS_XQM_H
151 struct xfs_super_block xfsb;
152 #endif
153 struct reiserfs_super_block reisersb;
155 fd = open(device, O_RDONLY);
156 if(fd == -1) {
157 return rv;
158 }
160 if(lseek(fd, 1024, SEEK_SET) == 1024
161 && read(fd, (char *)&e2sb, sizeof(e2sb)) == sizeof(e2sb)
162 && ext2magic(e2sb) == EXT2_SUPER_MAGIC) {
163 memcpy(uuid, e2sb.s_uuid, sizeof(e2sb.s_uuid));
164 namesize = sizeof(e2sb.s_volume_name);
165 *label = smalloc(namesize + 1);
166 sstrncpy(*label, e2sb.s_volume_name, namesize);
167 rv = 0;
168 #if HAVE_XFS_XQM_H
169 } else if(lseek(fd, 0, SEEK_SET) == 0
170 && read(fd, (char *)&xfsb, sizeof(xfsb)) == sizeof(xfsb)
171 && (strncmp((char *)&xfsb.s_magic, XFS_SUPER_MAGIC_STR, 4) == 0 ||
172 strncmp((char *)&xfsb.s_magic, XFS_SUPER_MAGIC2_STR, 4) == 0)) {
173 memcpy(uuid, xfsb.s_uuid, sizeof(xfsb.s_uuid));
174 namesize = sizeof(xfsb.s_fsname);
175 *label = smalloc(namesize + 1);
176 sstrncpy(*label, xfsb.s_fsname, namesize);
177 rv = 0;
178 #endif /* HAVE_XFS_XQM_H */
179 } else if(lseek(fd, 65536, SEEK_SET) == 65536
180 && read(fd, (char *)&reisersb, sizeof(reisersb)) == sizeof(reisersb)
181 && !strncmp((char *)&reisersb.s_magic, REISER_SUPER_MAGIC, 9)) {
182 memcpy(uuid, reisersb.s_uuid, sizeof(reisersb.s_uuid));
183 namesize = sizeof(reisersb.s_volume_name);
184 *label = smalloc(namesize + 1);
185 sstrncpy(*label, reisersb.s_volume_name, namesize);
186 rv = 0;
187 }
188 close(fd);
189 return rv;
190 }
192 static void
193 uuidcache_addentry(char *device, char *label, char *uuid)
194 {
195 struct uuidCache_s *last;
197 if(!uuidCache) {
198 last = uuidCache = smalloc(sizeof(*uuidCache));
199 } else {
200 for(last = uuidCache; last->next; last = last->next);
201 last->next = smalloc(sizeof(*uuidCache));
202 last = last->next;
203 }
204 last->next = NULL;
205 last->device = device;
206 last->label = label;
207 memcpy(last->uuid, uuid, sizeof(last->uuid));
208 }
210 static void
211 uuidcache_init(void)
212 {
213 char line[100];
214 char *s;
215 int ma, mi, sz;
216 static char ptname[100];
217 FILE *procpt;
218 char uuid[16], *label = NULL;
219 char device[110];
220 int handleOnFirst;
222 if(uuidCache) {
223 return;
224 }
226 procpt = fopen(PROC_PARTITIONS, "r");
227 if(procpt == NULL) {
228 return;
229 }
231 for(int firstPass = 1; firstPass >= 0; firstPass--) {
232 fseek(procpt, 0, SEEK_SET);
233 while(fgets(line, sizeof(line), procpt)) {
234 if(sscanf(line, " %d %d %d %[^\n ]",
235 &ma, &mi, &sz, ptname) != 4)
236 {
237 continue;
238 }
240 /* skip extended partitions (heuristic: size 1) */
241 if(sz == 1) {
242 continue;
243 }
245 /* look only at md devices on first pass */
246 handleOnFirst = !strncmp(ptname, "md", 2);
247 if(firstPass != handleOnFirst) {
248 continue;
249 }
251 /* skip entire disk (minor 0, 64, ... on ide;
252 0, 16, ... on sd) */
253 /* heuristic: partition name ends in a digit */
255 for(s = ptname; *s; s++);
257 if(isdigit((int)s[-1])) {
258 /*
259 * Note: this is a heuristic only - there is no reason
260 * why these devices should live in /dev.
261 * Perhaps this directory should be specifiable by option.
262 * One might for example have /devlabel with links to /dev
263 * for the devices that may be accessed in this way.
264 * (This is useful, if the cdrom on /dev/hdc must not
265 * be accessed.)
266 */
267 ssnprintf(device, sizeof(device), "%s/%s",
268 DEVLABELDIR, ptname);
269 if(!get_label_uuid(device, &label, uuid)) {
270 uuidcache_addentry(sstrdup(device),
271 label, uuid);
272 }
273 }
274 }
275 }
276 fclose(procpt);
277 }
279 static unsigned char
280 fromhex(char c)
281 {
282 if(isdigit((int)c)) {
283 return (c - '0');
284 } else if(islower((int)c)) {
285 return (c - 'a' + 10);
286 } else {
287 return (c - 'A' + 10);
288 }
289 }
291 static char *
292 get_spec_by_x(int n, const char *t)
293 {
294 struct uuidCache_s *uc;
296 uuidcache_init();
297 uc = uuidCache;
299 while(uc) {
300 switch(n) {
301 case UUID:
302 if(!memcmp(t, uc->uuid, sizeof(uc->uuid))) {
303 return sstrdup(uc->device);
304 }
305 break;
306 case VOL:
307 if(!strcmp(t, uc->label)) {
308 return sstrdup(uc->device);
309 }
310 break;
311 }
312 uc = uc->next;
313 }
314 return NULL;
315 }
317 static char *
318 get_spec_by_uuid(const char *s)
319 {
320 char uuid[16];
322 if(strlen(s) != 36
323 || s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-') {
324 goto bad_uuid;
325 }
327 for(int i=0; i<16; i++) {
328 if(*s == '-') {
329 s++;
330 }
331 if(!isxdigit((int)s[0]) || !isxdigit((int)s[1])) {
332 goto bad_uuid;
333 }
334 uuid[i] = ((fromhex(s[0]) << 4) | fromhex(s[1]));
335 s += 2;
336 }
337 return get_spec_by_x(UUID, uuid);
339 bad_uuid:
340 DEBUG("utils_mount: Found an invalid UUID: %s", s);
341 return NULL;
342 }
344 static char *get_spec_by_volume_label(const char *s)
345 {
346 return get_spec_by_x (VOL, s);
347 }
349 static char *get_device_name(const char *optstr)
350 {
351 char *rc;
353 if (optstr == NULL)
354 {
355 return (NULL);
356 }
357 else if (strncmp (optstr, "UUID=", 5) == 0)
358 {
359 DEBUG ("utils_mount: TODO: check UUID= code!");
360 rc = get_spec_by_uuid (optstr + 5);
361 }
362 else if (strncmp (optstr, "LABEL=", 6) == 0)
363 {
364 DEBUG ("utils_mount: TODO: check LABEL= code!");
365 rc = get_spec_by_volume_label (optstr + 6);
366 }
367 else
368 {
369 rc = sstrdup (optstr);
370 }
372 if(!rc)
373 {
374 DEBUG ("utils_mount: Error checking device name: optstr = %s", optstr);
375 }
376 return rc;
377 }
379 /* What weird OS is this..? I can't find any info with google :/ -octo */
380 #if HAVE_LISTMNTENT && 0
381 static cu_mount_t *cu_mount_listmntent (void)
382 {
383 cu_mount_t *last = *list;
384 struct mntent *mnt;
386 struct tabmntent *mntlist;
387 if(listmntent(&mntlist, COLLECTD_MNTTAB, NULL, NULL) < 0) {
388 #if COLLECT_DEBUG
389 char errbuf[1024];
390 DEBUG("utils_mount: calling listmntent() failed: %s",
391 sstrerror (errno, errbuf, sizeof (errbuf)));
392 #endif /* COLLECT_DEBUG */
393 }
395 for(struct tabmntent *p = mntlist; p; p = p->next) {
396 char *loop = NULL, *device = NULL;
398 mnt = p->ment;
399 loop = cu_mount_getoptionvalue(mnt->mnt_opts, "loop=");
400 if(loop == NULL) { /* no loop= mount */
401 device = get_device_name(mnt->mnt_fsname);
402 if(device == NULL) {
403 DEBUG("utils_mount: can't get devicename for fs (%s) %s (%s)"
404 ": ignored", mnt->mnt_type,
405 mnt->mnt_dir, mnt->mnt_fsname);
406 continue;
407 }
408 } else {
409 device = loop;
410 }
411 if(*list == NULL) {
412 *list = (cu_mount_t *)smalloc(sizeof(cu_mount_t));
413 last = *list;
414 } else {
415 while(last->next != NULL) { /* is last really last? */
416 last = last->next;
417 }
418 last->next = (cu_mount_t *)smalloc(sizeof(cu_mount_t));
419 last = last->next;
420 }
421 last->dir = sstrdup(mnt->mnt_dir);
422 last->spec_device = sstrdup(mnt->mnt_fsname);
423 last->device = device;
424 last->type = sstrdup(mnt->mnt_type);
425 last->options = sstrdup(mnt->mnt_opts);
426 last->next = NULL;
427 } /* for(p = mntlist; p; p = p->next) */
429 return(last);
430 } /* cu_mount_t *cu_mount_listmntent(void) */
431 /* #endif HAVE_LISTMNTENT */
433 /* 4.4BSD and Mac OS X (getfsstat) or NetBSD (getvfsstat) */
434 #elif HAVE_GETVFSSTAT || HAVE_GETFSSTAT
435 static cu_mount_t *cu_mount_getfsstat (void)
436 {
437 #if HAVE_GETFSSTAT
438 # define STRUCT_STATFS struct statfs
439 # define CMD_STATFS getfsstat
440 # define FLAGS_STATFS MNT_NOWAIT
441 /* #endif HAVE_GETFSSTAT */
442 #elif HAVE_GETVFSSTAT
443 # define STRUCT_STATFS struct statvfs
444 # define CMD_STATFS getvfsstat
445 # define FLAGS_STATFS ST_NOWAIT
446 #endif /* HAVE_GETVFSSTAT */
448 int bufsize;
449 STRUCT_STATFS *buf;
451 int num;
453 cu_mount_t *first = NULL;
454 cu_mount_t *last = NULL;
455 cu_mount_t *new = NULL;
457 /* Get the number of mounted file systems */
458 if ((bufsize = CMD_STATFS (NULL, 0, FLAGS_STATFS)) < 1)
459 {
460 #if COLLECT_DEBUG
461 char errbuf[1024];
462 DEBUG ("utils_mount: getv?fsstat failed: %s",
463 sstrerror (errno, errbuf, sizeof (errbuf)));
464 #endif /* COLLECT_DEBUG */
465 return (NULL);
466 }
468 if ((buf = calloc (bufsize, sizeof (*buf))) == NULL)
469 return (NULL);
471 /* The bufsize needs to be passed in bytes. Really. This is not in the
472 * manpage.. -octo */
473 if ((num = CMD_STATFS (buf, bufsize * sizeof (STRUCT_STATFS), FLAGS_STATFS)) < 1)
474 {
475 #if COLLECT_DEBUG
476 char errbuf[1024];
477 DEBUG ("utils_mount: getv?fsstat failed: %s",
478 sstrerror (errno, errbuf, sizeof (errbuf)));
479 #endif /* COLLECT_DEBUG */
480 free (buf);
481 return (NULL);
482 }
484 for (int i = 0; i < num; i++)
485 {
486 if ((new = calloc (1, sizeof (*new))) == NULL)
487 break;
489 /* Copy values from `struct mnttab' */
490 new->dir = sstrdup (buf[i].f_mntonname);
491 new->spec_device = sstrdup (buf[i].f_mntfromname);
492 new->type = sstrdup (buf[i].f_fstypename);
493 new->options = NULL;
494 new->device = get_device_name (new->options);
495 new->next = NULL;
497 /* Append to list */
498 if (first == NULL)
499 {
500 first = new;
501 last = new;
502 }
503 else
504 {
505 last->next = new;
506 last = new;
507 }
508 }
510 free (buf);
512 return (first);
513 }
514 /* #endif HAVE_GETVFSSTAT || HAVE_GETFSSTAT */
516 /* Solaris (SunOS 10): int getmntent(FILE *fp, struct mnttab *mp); */
517 #elif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT
518 static cu_mount_t *cu_mount_gen_getmntent (void)
519 {
520 struct mnttab mt;
521 FILE *fp;
523 cu_mount_t *first = NULL;
524 cu_mount_t *last = NULL;
525 cu_mount_t *new = NULL;
527 DEBUG ("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
529 if ((fp = fopen (COLLECTD_MNTTAB, "r")) == NULL)
530 {
531 char errbuf[1024];
532 ERROR ("fopen (%s): %s", COLLECTD_MNTTAB,
533 sstrerror (errno, errbuf, sizeof (errbuf)));
534 return (NULL);
535 }
537 while (getmntent (fp, &mt) == 0)
538 {
539 if ((new = calloc (1, sizeof (*new))) == NULL)
540 break;
542 /* Copy values from `struct mnttab' */
543 new->dir = sstrdup (mt.mnt_mountp);
544 new->spec_device = sstrdup (mt.mnt_special);
545 new->type = sstrdup (mt.mnt_fstype);
546 new->options = sstrdup (mt.mnt_mntopts);
547 new->device = get_device_name (new->options);
548 new->next = NULL;
550 /* Append to list */
551 if (first == NULL)
552 {
553 first = new;
554 last = new;
555 }
556 else
557 {
558 last->next = new;
559 last = new;
560 }
561 }
563 fclose (fp);
565 return (first);
566 } /* static cu_mount_t *cu_mount_gen_getmntent (void) */
567 /* #endif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT */
569 #elif HAVE_SEQ_GETMNTENT
570 #warn "This version of `getmntent' hat not yet been implemented!"
571 /* #endif HAVE_SEQ_GETMNTENT */
573 #elif HAVE_GETMNTENT_R
574 static cu_mount_t *cu_mount_getmntent (void)
575 {
576 FILE *fp;
577 struct mntent me;
578 char mntbuf[1024];
580 cu_mount_t *first = NULL;
581 cu_mount_t *last = NULL;
582 cu_mount_t *new = NULL;
584 DEBUG ("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
586 if ((fp = setmntent (COLLECTD_MNTTAB, "r")) == NULL)
587 {
588 char errbuf[1024];
589 ERROR ("setmntent (%s): %s", COLLECTD_MNTTAB,
590 sstrerror (errno, errbuf, sizeof (errbuf)));
591 return (NULL);
592 }
594 while (getmntent_r (fp, &me, mntbuf, sizeof (mntbuf) ))
595 {
596 if ((new = calloc (1, sizeof (*new))) == NULL)
597 break;
599 /* Copy values from `struct mntent *' */
600 new->dir = sstrdup (me.mnt_dir);
601 new->spec_device = sstrdup (me.mnt_fsname);
602 new->type = sstrdup (me.mnt_type);
603 new->options = sstrdup (me.mnt_opts);
604 new->device = get_device_name (new->options);
605 new->next = NULL;
607 DEBUG ("utils_mount: new = {dir = %s, spec_device = %s, type = %s, options = %s, device = %s}",
608 new->dir, new->spec_device, new->type, new->options, new->device);
610 /* Append to list */
611 if (first == NULL)
612 {
613 first = new;
614 last = new;
615 }
616 else
617 {
618 last->next = new;
619 last = new;
620 }
621 }
623 endmntent (fp);
625 DEBUG ("utils_mount: return (0x%p)", (void *) first);
627 return (first);
628 } /* HAVE_GETMNTENT_R */
630 #elif HAVE_ONE_GETMNTENT
631 static cu_mount_t *cu_mount_getmntent (void)
632 {
633 FILE *fp;
634 struct mntent *me;
636 cu_mount_t *first = NULL;
637 cu_mount_t *last = NULL;
638 cu_mount_t *new = NULL;
640 DEBUG ("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
642 if ((fp = setmntent (COLLECTD_MNTTAB, "r")) == NULL)
643 {
644 char errbuf[1024];
645 ERROR ("setmntent (%s): %s", COLLECTD_MNTTAB,
646 sstrerror (errno, errbuf, sizeof (errbuf)));
647 return (NULL);
648 }
650 while ((me = getmntent (fp)) != NULL)
651 {
652 if ((new = calloc (1, sizeof (*new))) == NULL)
653 break;
655 /* Copy values from `struct mntent *' */
656 new->dir = sstrdup (me->mnt_dir);
657 new->spec_device = sstrdup (me->mnt_fsname);
658 new->type = sstrdup (me->mnt_type);
659 new->options = sstrdup (me->mnt_opts);
660 new->device = get_device_name (new->options);
661 new->next = NULL;
663 DEBUG ("utils_mount: new = {dir = %s, spec_device = %s, type = %s, options = %s, device = %s}",
664 new->dir, new->spec_device, new->type, new->options, new->device);
666 /* Append to list */
667 if (first == NULL)
668 {
669 first = new;
670 last = new;
671 }
672 else
673 {
674 last->next = new;
675 last = new;
676 }
677 }
679 endmntent (fp);
681 DEBUG ("utils_mount: return (0x%p)", (void *) first);
683 return (first);
684 }
685 #endif /* HAVE_ONE_GETMNTENT */
687 /* *** *** *** ******************************************** *** *** *** */
688 /* *** *** *** *** *** *** public functions *** *** *** *** *** *** */
689 /* *** *** *** ******************************************** *** *** *** */
691 cu_mount_t *cu_mount_getlist(cu_mount_t **list)
692 {
693 cu_mount_t *new;
694 cu_mount_t *first = NULL;
695 cu_mount_t *last = NULL;
697 if (list == NULL)
698 return (NULL);
700 if (*list != NULL)
701 {
702 first = *list;
703 last = first;
704 while (last->next != NULL)
705 last = last->next;
706 }
708 #if HAVE_LISTMNTENT && 0
709 new = cu_mount_listmntent ();
710 #elif HAVE_GETVFSSTAT || HAVE_GETFSSTAT
711 new = cu_mount_getfsstat ();
712 #elif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT
713 new = cu_mount_gen_getmntent ();
714 #elif HAVE_SEQ_GETMNTENT
715 # error "This version of `getmntent' hat not yet been implemented!"
716 #elif HAVE_ONE_GETMNTENT
717 new = cu_mount_getmntent ();
718 #else
719 # error "Could not determine how to find mountpoints."
720 #endif
722 if (first != NULL)
723 {
724 last->next = new;
725 }
726 else
727 {
728 first = new;
729 last = new;
730 *list = first;
731 }
733 while ((last != NULL) && (last->next != NULL))
734 last = last->next;
736 return (last);
737 } /* cu_mount_t *cu_mount_getlist(cu_mount_t **list) */
739 void cu_mount_freelist (cu_mount_t *list)
740 {
741 cu_mount_t *next;
743 for (cu_mount_t *this = list; this != NULL; this = next)
744 {
745 next = this->next;
747 sfree (this->dir);
748 sfree (this->spec_device);
749 sfree (this->device);
750 sfree (this->type);
751 sfree (this->options);
752 sfree (this);
753 }
754 } /* void cu_mount_freelist(cu_mount_t *list) */
756 char *
757 cu_mount_checkoption(char *line, const char *keyword, int full)
758 {
759 char *line2, *l2, *p1, *p2;
760 int l;
762 if(line == NULL || keyword == NULL) {
763 return NULL;
764 }
766 if(full != 0) {
767 full = 1;
768 }
770 line2 = sstrdup(line);
771 l2 = line2;
772 while(*l2 != '\0') {
773 if(*l2 == ',') {
774 *l2 = '\0';
775 }
776 l2++;
777 }
779 l = strlen(keyword);
780 p1 = line - 1;
781 p2 = strchr(line, ',');
782 do {
783 if(strncmp(line2+(p1-line)+1, keyword, l+full) == 0) {
784 free(line2);
785 return p1+1;
786 }
787 p1 = p2;
788 if(p1 != NULL) {
789 p2 = strchr(p1+1, ',');
790 }
791 } while(p1 != NULL);
793 free(line2);
794 return NULL;
795 } /* char *cu_mount_checkoption(char *line, char *keyword, int full) */
797 char *
798 cu_mount_getoptionvalue(char *line, const char *keyword)
799 {
800 char *r;
802 r = cu_mount_checkoption(line, keyword, 0);
803 if(r != NULL) {
804 char *p;
805 r += strlen(keyword);
806 p = strchr(r, ',');
807 if(p == NULL) {
808 return sstrdup(r);
809 } else {
810 char *m;
811 if((p-r) == 1) {
812 return NULL;
813 }
814 m = smalloc(p-r+1);
815 sstrncpy(m, r, p-r+1);
816 return m;
817 }
818 }
819 return r;
820 } /* char *cu_mount_getoptionvalue(char *line, const char *keyword) */
822 int
823 cu_mount_type(const char *type)
824 {
825 if(strcmp(type, "ext3") == 0) return CUMT_EXT3;
826 if(strcmp(type, "ext2") == 0) return CUMT_EXT2;
827 if(strcmp(type, "ufs") == 0) return CUMT_UFS;
828 if(strcmp(type, "vxfs") == 0) return CUMT_VXFS;
829 if(strcmp(type, "zfs") == 0) return CUMT_ZFS;
830 return CUMT_UNKNOWN;
831 } /* int cu_mount_type(const char *type) */