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 #include "common.h"
28 #if HAVE_XFS_XQM_H
29 # include <xfs/xqm.h>
30 #define XFS_SUPER_MAGIC_STR "XFSB"
31 #define XFS_SUPER_MAGIC2_STR "BSFX"
32 #endif
34 #include "plugin.h"
35 #include "utils_mount.h"
37 #if HAVE_GETVFSSTAT
38 # if HAVE_SYS_TYPES_H
39 # include <sys/types.h>
40 # endif
41 # if HAVE_SYS_STATVFS_H
42 # include <sys/statvfs.h>
43 # endif
44 /* #endif HAVE_GETVFSSTAT */
46 #elif HAVE_GETFSSTAT
47 # if HAVE_SYS_PARAM_H
48 # include <sys/param.h>
49 # endif
50 # if HAVE_SYS_UCRED_H
51 # include <sys/ucred.h>
52 # endif
53 # if HAVE_SYS_MOUNT_H
54 # include <sys/mount.h>
55 # endif
56 #endif /* HAVE_GETFSSTAT */
58 #if HAVE_MNTENT_H
59 # include <mntent.h>
60 #endif
61 #if HAVE_SYS_MNTTAB_H
62 # include <sys/mnttab.h>
63 #endif
65 #if HAVE_PATHS_H
66 # include <paths.h>
67 #endif
69 #ifdef COLLECTD_MNTTAB
70 # undef COLLECTD_MNTTAB
71 #endif
73 #if defined(_PATH_MOUNTED) /* glibc */
74 # define COLLECTD_MNTTAB _PATH_MOUNTED
75 #elif defined(MNTTAB) /* Solaris */
76 # define COLLECTD_MNTTAB MNTTAB
77 #elif defined(MNT_MNTTAB)
78 # define COLLECTD_MNTTAB MNT_MNTTAB
79 #elif defined(MNTTABNAME)
80 # define COLLECTD_MNTTAB MNTTABNAME
81 #elif defined(KMTAB)
82 # define COLLECTD_MNTTAB KMTAB
83 #else
84 # define COLLECTD_MNTTAB "/etc/mnttab"
85 #endif
87 /* *** *** *** ********************************************* *** *** *** */
88 /* *** *** *** *** *** *** private functions *** *** *** *** *** *** */
89 /* *** *** *** ********************************************* *** *** *** */
91 /* stolen from quota-3.13 (quota-tools) */
93 #define PROC_PARTITIONS "/proc/partitions"
94 #define DEVLABELDIR "/dev"
95 #define UUID 1
96 #define VOL 2
98 static struct uuidCache_s {
99 struct uuidCache_s *next;
100 char uuid[16];
101 char *label;
102 char *device;
103 } *uuidCache = NULL;
105 #define EXT2_SUPER_MAGIC 0xEF53
106 struct ext2_super_block {
107 unsigned char s_dummy1[56];
108 unsigned char s_magic[2];
109 unsigned char s_dummy2[46];
110 unsigned char s_uuid[16];
111 char s_volume_name[16];
112 };
113 #define ext2magic(s) ((unsigned int)s.s_magic[0] \
114 + (((unsigned int)s.s_magic[1]) << 8))
116 #if HAVE_XFS_XQM_H
117 struct xfs_super_block {
118 unsigned char s_magic[4];
119 unsigned char s_dummy[28];
120 unsigned char s_uuid[16];
121 unsigned char s_dummy2[60];
122 char s_fsname[12];
123 };
124 #endif /* HAVE_XFS_XQM_H */
126 #define REISER_SUPER_MAGIC "ReIsEr2Fs"
127 struct reiserfs_super_block {
128 unsigned char s_dummy1[52];
129 unsigned char s_magic[10];
130 unsigned char s_dummy2[22];
131 unsigned char s_uuid[16];
132 char s_volume_name[16];
133 };
135 /* for now, only ext2 and xfs are supported */
136 static int
137 get_label_uuid(const char *device, char **label, char *uuid)
138 {
139 /* start with ext2 and xfs tests, taken from mount_guess_fstype */
140 /* should merge these later */
141 int fd, rv = 1;
142 size_t namesize;
143 struct ext2_super_block e2sb;
144 #if HAVE_XFS_XQM_H
145 struct xfs_super_block xfsb;
146 #endif
147 struct reiserfs_super_block reisersb;
149 fd = open(device, O_RDONLY);
150 if(fd == -1) {
151 return rv;
152 }
154 if(lseek(fd, 1024, SEEK_SET) == 1024
155 && read(fd, (char *)&e2sb, sizeof(e2sb)) == sizeof(e2sb)
156 && ext2magic(e2sb) == EXT2_SUPER_MAGIC) {
157 memcpy(uuid, e2sb.s_uuid, sizeof(e2sb.s_uuid));
158 namesize = sizeof(e2sb.s_volume_name);
159 *label = smalloc(namesize + 1);
160 sstrncpy(*label, e2sb.s_volume_name, namesize);
161 rv = 0;
162 #if HAVE_XFS_XQM_H
163 } else if(lseek(fd, 0, SEEK_SET) == 0
164 && read(fd, (char *)&xfsb, sizeof(xfsb)) == sizeof(xfsb)
165 && (strncmp((char *)&xfsb.s_magic, XFS_SUPER_MAGIC_STR, 4) == 0 ||
166 strncmp((char *)&xfsb.s_magic, XFS_SUPER_MAGIC2_STR, 4) == 0)) {
167 memcpy(uuid, xfsb.s_uuid, sizeof(xfsb.s_uuid));
168 namesize = sizeof(xfsb.s_fsname);
169 *label = smalloc(namesize + 1);
170 sstrncpy(*label, xfsb.s_fsname, namesize);
171 rv = 0;
172 #endif /* HAVE_XFS_XQM_H */
173 } else if(lseek(fd, 65536, SEEK_SET) == 65536
174 && read(fd, (char *)&reisersb, sizeof(reisersb)) == sizeof(reisersb)
175 && !strncmp((char *)&reisersb.s_magic, REISER_SUPER_MAGIC, 9)) {
176 memcpy(uuid, reisersb.s_uuid, sizeof(reisersb.s_uuid));
177 namesize = sizeof(reisersb.s_volume_name);
178 *label = smalloc(namesize + 1);
179 sstrncpy(*label, reisersb.s_volume_name, namesize);
180 rv = 0;
181 }
182 close(fd);
183 return rv;
184 }
186 static void
187 uuidcache_addentry(char *device, char *label, char *uuid)
188 {
189 struct uuidCache_s *last;
191 if(!uuidCache) {
192 last = uuidCache = smalloc(sizeof(*uuidCache));
193 } else {
194 for(last = uuidCache; last->next; last = last->next);
195 last->next = smalloc(sizeof(*uuidCache));
196 last = last->next;
197 }
198 last->next = NULL;
199 last->device = device;
200 last->label = label;
201 memcpy(last->uuid, uuid, sizeof(last->uuid));
202 }
204 static void
205 uuidcache_init(void)
206 {
207 char line[100];
208 char *s;
209 int ma, mi, sz;
210 static char ptname[100];
211 FILE *procpt;
212 char uuid[16], *label = NULL;
213 char device[110];
214 int firstPass;
215 int handleOnFirst;
217 if(uuidCache) {
218 return;
219 }
221 procpt = fopen(PROC_PARTITIONS, "r");
222 if(procpt == NULL) {
223 return;
224 }
226 for(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 ]",
230 &ma, &mi, &sz, ptname) != 4)
231 {
232 continue;
233 }
235 /* skip extended partitions (heuristic: size 1) */
236 if(sz == 1) {
237 continue;
238 }
240 /* look only at md devices on first pass */
241 handleOnFirst = !strncmp(ptname, "md", 2);
242 if(firstPass != handleOnFirst) {
243 continue;
244 }
246 /* skip entire disk (minor 0, 64, ... on ide;
247 0, 16, ... on sd) */
248 /* heuristic: partition name ends in a digit */
250 for(s = ptname; *s; s++);
252 if(isdigit((int)s[-1])) {
253 /*
254 * Note: this is a heuristic only - there is no reason
255 * why these devices should live in /dev.
256 * Perhaps this directory should be specifiable by option.
257 * One might for example have /devlabel with links to /dev
258 * for the devices that may be accessed in this way.
259 * (This is useful, if the cdrom on /dev/hdc must not
260 * be accessed.)
261 */
262 ssnprintf(device, sizeof(device), "%s/%s",
263 DEVLABELDIR, ptname);
264 if(!get_label_uuid(device, &label, uuid)) {
265 uuidcache_addentry(sstrdup(device),
266 label, uuid);
267 }
268 }
269 }
270 }
271 fclose(procpt);
272 }
274 static unsigned char
275 fromhex(char c)
276 {
277 if(isdigit((int)c)) {
278 return (c - '0');
279 } else if(islower((int)c)) {
280 return (c - 'a' + 10);
281 } else {
282 return (c - 'A' + 10);
283 }
284 }
286 static char *
287 get_spec_by_x(int n, const char *t)
288 {
289 struct uuidCache_s *uc;
291 uuidcache_init();
292 uc = uuidCache;
294 while(uc) {
295 switch(n) {
296 case UUID:
297 if(!memcmp(t, uc->uuid, sizeof(uc->uuid))) {
298 return sstrdup(uc->device);
299 }
300 break;
301 case VOL:
302 if(!strcmp(t, uc->label)) {
303 return sstrdup(uc->device);
304 }
305 break;
306 }
307 uc = uc->next;
308 }
309 return NULL;
310 }
312 static char *
313 get_spec_by_uuid(const char *s)
314 {
315 char uuid[16];
316 int i;
318 if(strlen(s) != 36
319 || s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-') {
320 goto bad_uuid;
321 }
323 for(i=0; i<16; i++) {
324 if(*s == '-') {
325 s++;
326 }
327 if(!isxdigit((int)s[0]) || !isxdigit((int)s[1])) {
328 goto bad_uuid;
329 }
330 uuid[i] = ((fromhex(s[0]) << 4) | fromhex(s[1]));
331 s += 2;
332 }
333 return get_spec_by_x(UUID, uuid);
335 bad_uuid:
336 DEBUG("utils_mount: Found an invalid UUID: %s", s);
337 return NULL;
338 }
340 static char *get_spec_by_volume_label(const char *s)
341 {
342 return get_spec_by_x (VOL, s);
343 }
345 static char *get_device_name(const char *optstr)
346 {
347 char *rc;
349 if (optstr == NULL)
350 {
351 return (NULL);
352 }
353 else if (strncmp (optstr, "UUID=", 5) == 0)
354 {
355 DEBUG ("utils_mount: TODO: check UUID= code!");
356 rc = get_spec_by_uuid (optstr + 5);
357 }
358 else if (strncmp (optstr, "LABEL=", 6) == 0)
359 {
360 DEBUG ("utils_mount: TODO: check LABEL= code!");
361 rc = get_spec_by_volume_label (optstr + 6);
362 }
363 else
364 {
365 rc = sstrdup (optstr);
366 }
368 if(!rc)
369 {
370 DEBUG ("utils_mount: Error checking device name: optstr = %s", optstr);
371 }
372 return rc;
373 }
375 /* What weird OS is this..? I can't find any info with google :/ -octo */
376 #if HAVE_LISTMNTENT && 0
377 static cu_mount_t *cu_mount_listmntent (void)
378 {
379 cu_mount_t *last = *list;
380 struct tabmntent *p;
381 struct mntent *mnt;
383 struct tabmntent *mntlist;
384 if(listmntent(&mntlist, COLLECTD_MNTTAB, NULL, NULL) < 0) {
385 #if COLLECT_DEBUG
386 char errbuf[1024];
387 DEBUG("utils_mount: calling listmntent() failed: %s",
388 sstrerror (errno, errbuf, sizeof (errbuf)));
389 #endif /* COLLECT_DEBUG */
390 }
392 for(p = mntlist; p; p = p->next) {
393 char *loop = NULL, *device = NULL;
395 mnt = p->ment;
396 loop = cu_mount_getoptionvalue(mnt->mnt_opts, "loop=");
397 if(loop == NULL) { /* no loop= mount */
398 device = get_device_name(mnt->mnt_fsname);
399 if(device == NULL) {
400 DEBUG("utils_mount: can't get devicename for fs (%s) %s (%s)"
401 ": ignored", mnt->mnt_type,
402 mnt->mnt_dir, mnt->mnt_fsname);
403 continue;
404 }
405 } else {
406 device = loop;
407 }
408 if(*list == NULL) {
409 *list = (cu_mount_t *)smalloc(sizeof(cu_mount_t));
410 last = *list;
411 } else {
412 while(last->next != NULL) { /* is last really last? */
413 last = last->next;
414 }
415 last->next = (cu_mount_t *)smalloc(sizeof(cu_mount_t));
416 last = last->next;
417 }
418 last->dir = sstrdup(mnt->mnt_dir);
419 last->spec_device = sstrdup(mnt->mnt_fsname);
420 last->device = device;
421 last->type = sstrdup(mnt->mnt_type);
422 last->options = sstrdup(mnt->mnt_opts);
423 last->next = NULL;
424 } /* for(p = mntlist; p; p = p->next) */
426 return(last);
427 } /* cu_mount_t *cu_mount_listmntent(void) */
428 /* #endif HAVE_LISTMNTENT */
430 /* 4.4BSD and Mac OS X (getfsstat) or NetBSD (getvfsstat) */
431 #elif HAVE_GETVFSSTAT || HAVE_GETFSSTAT
432 static cu_mount_t *cu_mount_getfsstat (void)
433 {
434 #if HAVE_GETVFSSTAT
435 # define STRUCT_STATFS struct statvfs
436 # define CMD_STATFS getvfsstat
437 # define FLAGS_STATFS ST_NOWAIT
438 /* #endif HAVE_GETVFSSTAT */
439 #elif HAVE_GETFSSTAT
440 # define STRUCT_STATFS struct statfs
441 # define CMD_STATFS getfsstat
442 # define FLAGS_STATFS MNT_NOWAIT
443 #endif /* HAVE_GETFSSTAT */
445 int bufsize;
446 STRUCT_STATFS *buf;
448 int num;
449 int i;
451 cu_mount_t *first = NULL;
452 cu_mount_t *last = NULL;
453 cu_mount_t *new = NULL;
455 /* Get the number of mounted file systems */
456 if ((bufsize = CMD_STATFS (NULL, 0, FLAGS_STATFS)) < 1)
457 {
458 #if COLLECT_DEBUG
459 char errbuf[1024];
460 DEBUG ("utils_mount: getv?fsstat failed: %s",
461 sstrerror (errno, errbuf, sizeof (errbuf)));
462 #endif /* COLLECT_DEBUG */
463 return (NULL);
464 }
466 if ((buf = (STRUCT_STATFS *) malloc (bufsize * sizeof (STRUCT_STATFS)))
467 == NULL)
468 return (NULL);
469 memset (buf, '\0', bufsize * sizeof (STRUCT_STATFS));
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 (i = 0; i < num; i++)
485 {
486 if ((new = malloc (sizeof (cu_mount_t))) == NULL)
487 break;
488 memset (new, '\0', sizeof (cu_mount_t));
490 /* Copy values from `struct mnttab' */
491 new->dir = sstrdup (buf[i].f_mntonname);
492 new->spec_device = sstrdup (buf[i].f_mntfromname);
493 new->type = sstrdup (buf[i].f_fstypename);
494 new->options = NULL;
495 new->device = get_device_name (new->options);
496 new->next = NULL;
498 /* Append to list */
499 if (first == NULL)
500 {
501 first = new;
502 last = new;
503 }
504 else
505 {
506 last->next = new;
507 last = new;
508 }
509 }
511 free (buf);
513 return (first);
514 }
515 /* #endif HAVE_GETVFSSTAT || HAVE_GETFSSTAT */
517 /* Solaris (SunOS 10): int getmntent(FILE *fp, struct mnttab *mp); */
518 #elif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT
519 static cu_mount_t *cu_mount_gen_getmntent (void)
520 {
521 struct mnttab mt;
522 FILE *fp;
524 cu_mount_t *first = NULL;
525 cu_mount_t *last = NULL;
526 cu_mount_t *new = NULL;
528 DEBUG ("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
530 if ((fp = fopen (COLLECTD_MNTTAB, "r")) == NULL)
531 {
532 char errbuf[1024];
533 ERROR ("fopen (%s): %s", COLLECTD_MNTTAB,
534 sstrerror (errno, errbuf, sizeof (errbuf)));
535 return (NULL);
536 }
538 while (getmntent (fp, &mt) == 0)
539 {
540 if ((new = malloc (sizeof (cu_mount_t))) == NULL)
541 break;
542 memset (new, '\0', sizeof (cu_mount_t));
544 /* Copy values from `struct mnttab' */
545 new->dir = sstrdup (mt.mnt_mountp);
546 new->spec_device = sstrdup (mt.mnt_special);
547 new->type = sstrdup (mt.mnt_fstype);
548 new->options = sstrdup (mt.mnt_mntopts);
549 new->device = get_device_name (new->options);
550 new->next = NULL;
552 /* Append to list */
553 if (first == NULL)
554 {
555 first = new;
556 last = new;
557 }
558 else
559 {
560 last->next = new;
561 last = new;
562 }
563 }
565 fclose (fp);
567 return (first);
568 } /* static cu_mount_t *cu_mount_gen_getmntent (void) */
569 /* #endif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT */
571 #elif HAVE_SEQ_GETMNTENT
572 #warn "This version of `getmntent' hat not yet been implemented!"
573 /* #endif HAVE_SEQ_GETMNTENT */
575 #elif HAVE_GETMNTENT_R
576 static cu_mount_t *cu_mount_getmntent (void)
577 {
578 FILE *fp;
579 struct mntent me;
580 char mntbuf[1024];
582 cu_mount_t *first = NULL;
583 cu_mount_t *last = NULL;
584 cu_mount_t *new = NULL;
586 DEBUG ("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
588 if ((fp = setmntent (COLLECTD_MNTTAB, "r")) == NULL)
589 {
590 char errbuf[1024];
591 ERROR ("setmntent (%s): %s", COLLECTD_MNTTAB,
592 sstrerror (errno, errbuf, sizeof (errbuf)));
593 return (NULL);
594 }
596 while (getmntent_r (fp, &me, mntbuf, sizeof (mntbuf) ))
597 {
598 if ((new = malloc (sizeof (cu_mount_t))) == NULL)
599 break;
600 memset (new, '\0', sizeof (cu_mount_t));
602 /* Copy values from `struct mntent *' */
603 new->dir = sstrdup (me.mnt_dir);
604 new->spec_device = sstrdup (me.mnt_fsname);
605 new->type = sstrdup (me.mnt_type);
606 new->options = sstrdup (me.mnt_opts);
607 new->device = get_device_name (new->options);
608 new->next = NULL;
610 DEBUG ("utils_mount: new = {dir = %s, spec_device = %s, type = %s, options = %s, device = %s}",
611 new->dir, new->spec_device, new->type, new->options, new->device);
613 /* Append to list */
614 if (first == NULL)
615 {
616 first = new;
617 last = new;
618 }
619 else
620 {
621 last->next = new;
622 last = new;
623 }
624 }
626 endmntent (fp);
628 DEBUG ("utils_mount: return (0x%p)", (void *) first);
630 return (first);
631 } /* HAVE_GETMNTENT_R */
633 #elif HAVE_ONE_GETMNTENT
634 static cu_mount_t *cu_mount_getmntent (void)
635 {
636 FILE *fp;
637 struct mntent *me;
639 cu_mount_t *first = NULL;
640 cu_mount_t *last = NULL;
641 cu_mount_t *new = NULL;
643 DEBUG ("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
645 if ((fp = setmntent (COLLECTD_MNTTAB, "r")) == NULL)
646 {
647 char errbuf[1024];
648 ERROR ("setmntent (%s): %s", COLLECTD_MNTTAB,
649 sstrerror (errno, errbuf, sizeof (errbuf)));
650 return (NULL);
651 }
653 while ((me = getmntent (fp)) != NULL)
654 {
655 if ((new = malloc (sizeof (cu_mount_t))) == NULL)
656 break;
657 memset (new, '\0', sizeof (cu_mount_t));
659 /* Copy values from `struct mntent *' */
660 new->dir = sstrdup (me->mnt_dir);
661 new->spec_device = sstrdup (me->mnt_fsname);
662 new->type = sstrdup (me->mnt_type);
663 new->options = sstrdup (me->mnt_opts);
664 new->device = get_device_name (new->options);
665 new->next = NULL;
667 DEBUG ("utils_mount: new = {dir = %s, spec_device = %s, type = %s, options = %s, device = %s}",
668 new->dir, new->spec_device, new->type, new->options, new->device);
670 /* Append to list */
671 if (first == NULL)
672 {
673 first = new;
674 last = new;
675 }
676 else
677 {
678 last->next = new;
679 last = new;
680 }
681 }
683 endmntent (fp);
685 DEBUG ("utils_mount: return (0x%p)", (void *) first);
687 return (first);
688 }
689 #endif /* HAVE_ONE_GETMNTENT */
691 /* *** *** *** ******************************************** *** *** *** */
692 /* *** *** *** *** *** *** public functions *** *** *** *** *** *** */
693 /* *** *** *** ******************************************** *** *** *** */
695 cu_mount_t *cu_mount_getlist(cu_mount_t **list)
696 {
697 cu_mount_t *new;
698 cu_mount_t *first = NULL;
699 cu_mount_t *last = NULL;
701 if (list == NULL)
702 return (NULL);
704 if (*list != NULL)
705 {
706 first = *list;
707 last = first;
708 while (last->next != NULL)
709 last = last->next;
710 }
712 #if HAVE_LISTMNTENT && 0
713 new = cu_mount_listmntent ();
714 #elif HAVE_GETVFSSTAT || HAVE_GETFSSTAT
715 new = cu_mount_getfsstat ();
716 #elif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT
717 new = cu_mount_gen_getmntent ();
718 #elif HAVE_SEQ_GETMNTENT
719 # error "This version of `getmntent' hat not yet been implemented!"
720 #elif HAVE_ONE_GETMNTENT
721 new = cu_mount_getmntent ();
722 #else
723 # error "Could not determine how to find mountpoints."
724 #endif
726 if (first != NULL)
727 {
728 last->next = new;
729 }
730 else
731 {
732 first = new;
733 last = new;
734 *list = first;
735 }
737 while ((last != NULL) && (last->next != NULL))
738 last = last->next;
740 return (last);
741 } /* cu_mount_t *cu_mount_getlist(cu_mount_t **list) */
743 void cu_mount_freelist (cu_mount_t *list)
744 {
745 cu_mount_t *this;
746 cu_mount_t *next;
748 for (this = list; this != NULL; this = next)
749 {
750 next = this->next;
752 sfree (this->dir);
753 sfree (this->spec_device);
754 sfree (this->device);
755 sfree (this->type);
756 sfree (this->options);
757 sfree (this);
758 }
759 } /* void cu_mount_freelist(cu_mount_t *list) */
761 char *
762 cu_mount_checkoption(char *line, char *keyword, int full)
763 {
764 char *line2, *l2, *p1, *p2;
765 int l;
767 if(line == NULL || keyword == NULL) {
768 return NULL;
769 }
771 if(full != 0) {
772 full = 1;
773 }
775 line2 = sstrdup(line);
776 l2 = line2;
777 while(*l2 != '\0') {
778 if(*l2 == ',') {
779 *l2 = '\0';
780 }
781 l2++;
782 }
784 l = strlen(keyword);
785 p1 = line - 1;
786 p2 = strchr(line, ',');
787 do {
788 if(strncmp(line2+(p1-line)+1, keyword, l+full) == 0) {
789 free(line2);
790 return p1+1;
791 }
792 p1 = p2;
793 if(p1 != NULL) {
794 p2 = strchr(p1+1, ',');
795 }
796 } while(p1 != NULL);
798 free(line2);
799 return NULL;
800 } /* char *cu_mount_checkoption(char *line, char *keyword, int full) */
802 char *
803 cu_mount_getoptionvalue(char *line, char *keyword)
804 {
805 char *r;
807 r = cu_mount_checkoption(line, keyword, 0);
808 if(r != NULL) {
809 char *p;
810 r += strlen(keyword);
811 p = strchr(r, ',');
812 if(p == NULL) {
813 return sstrdup(r);
814 } else {
815 char *m;
816 if((p-r) == 1) {
817 return NULL;
818 }
819 m = (char *)smalloc(p-r+1);
820 sstrncpy(m, r, p-r+1);
821 return m;
822 }
823 }
824 return r;
825 } /* char *cu_mount_getoptionvalue(char *line, char *keyword) */
827 int
828 cu_mount_type(const char *type)
829 {
830 if(strcmp(type, "ext3") == 0) return CUMT_EXT3;
831 if(strcmp(type, "ext2") == 0) return CUMT_EXT2;
832 if(strcmp(type, "ufs") == 0) return CUMT_UFS;
833 if(strcmp(type, "vxfs") == 0) return CUMT_VXFS;
834 if(strcmp(type, "zfs") == 0) return CUMT_ZFS;
835 return CUMT_UNKNOWN;
836 } /* int cu_mount_type(const char *type) */