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 #include "collectd.h"
24 #include "utils_mount.h"
26 #include "common.h" /* sstrncpy() et alii */
27 #include "plugin.h" /* ERROR() macro */
29 #if HAVE_XFS_XQM_H
30 # include <xfs/xqm.h>
31 #define XFS_SUPER_MAGIC_STR "XFSB"
32 #define XFS_SUPER_MAGIC2_STR "BSFX"
33 #endif
35 #if HAVE_GETVFSSTAT
36 # if HAVE_SYS_TYPES_H
37 # include <sys/types.h>
38 # endif
39 # if HAVE_SYS_STATVFS_H
40 # include <sys/statvfs.h>
41 # endif
42 /* #endif HAVE_GETVFSSTAT */
44 #elif HAVE_GETFSSTAT
45 # if HAVE_SYS_PARAM_H
46 # include <sys/param.h>
47 # endif
48 # if HAVE_SYS_UCRED_H
49 # include <sys/ucred.h>
50 # endif
51 # if HAVE_SYS_MOUNT_H
52 # include <sys/mount.h>
53 # endif
54 #endif /* HAVE_GETFSSTAT */
56 #if HAVE_MNTENT_H
57 # include <mntent.h>
58 #endif
59 #if HAVE_SYS_MNTTAB_H
60 # include <sys/mnttab.h>
61 #endif
63 #if HAVE_PATHS_H
64 # include <paths.h>
65 #endif
67 #ifdef COLLECTD_MNTTAB
68 # undef COLLECTD_MNTTAB
69 #endif
71 #if defined(_PATH_MOUNTED) /* glibc */
72 # define COLLECTD_MNTTAB _PATH_MOUNTED
73 #elif defined(MNTTAB) /* Solaris */
74 # define COLLECTD_MNTTAB MNTTAB
75 #elif defined(MNT_MNTTAB)
76 # define COLLECTD_MNTTAB MNT_MNTTAB
77 #elif defined(MNTTABNAME)
78 # define COLLECTD_MNTTAB MNTTABNAME
79 #elif defined(KMTAB)
80 # define COLLECTD_MNTTAB KMTAB
81 #else
82 # define COLLECTD_MNTTAB "/etc/mnttab"
83 #endif
85 /* *** *** *** ********************************************* *** *** *** */
86 /* *** *** *** *** *** *** private functions *** *** *** *** *** *** */
87 /* *** *** *** ********************************************* *** *** *** */
89 /* stolen from quota-3.13 (quota-tools) */
91 #define PROC_PARTITIONS "/proc/partitions"
92 #define DEVLABELDIR "/dev"
93 #define UUID 1
94 #define VOL 2
96 static struct uuidCache_s {
97 struct uuidCache_s *next;
98 char uuid[16];
99 char *label;
100 char *device;
101 } *uuidCache = NULL;
103 #define EXT2_SUPER_MAGIC 0xEF53
104 struct ext2_super_block {
105 unsigned char s_dummy1[56];
106 unsigned char s_magic[2];
107 unsigned char s_dummy2[46];
108 unsigned char s_uuid[16];
109 char s_volume_name[16];
110 };
111 #define ext2magic(s) ((unsigned int)s.s_magic[0] \
112 + (((unsigned int)s.s_magic[1]) << 8))
114 #if HAVE_XFS_XQM_H
115 struct xfs_super_block {
116 unsigned char s_magic[4];
117 unsigned char s_dummy[28];
118 unsigned char s_uuid[16];
119 unsigned char s_dummy2[60];
120 char s_fsname[12];
121 };
122 #endif /* HAVE_XFS_XQM_H */
124 #define REISER_SUPER_MAGIC "ReIsEr2Fs"
125 struct reiserfs_super_block {
126 unsigned char s_dummy1[52];
127 unsigned char s_magic[10];
128 unsigned char s_dummy2[22];
129 unsigned char s_uuid[16];
130 char s_volume_name[16];
131 };
133 /* for now, only ext2 and xfs are supported */
134 static int
135 get_label_uuid(const char *device, char **label, char *uuid)
136 {
137 /* start with ext2 and xfs tests, taken from mount_guess_fstype */
138 /* should merge these later */
139 int fd, rv = 1;
140 size_t namesize;
141 struct ext2_super_block e2sb;
142 #if HAVE_XFS_XQM_H
143 struct xfs_super_block xfsb;
144 #endif
145 struct reiserfs_super_block reisersb;
147 fd = open(device, O_RDONLY);
148 if(fd == -1) {
149 return rv;
150 }
152 if(lseek(fd, 1024, SEEK_SET) == 1024
153 && read(fd, (char *)&e2sb, sizeof(e2sb)) == sizeof(e2sb)
154 && ext2magic(e2sb) == EXT2_SUPER_MAGIC) {
155 memcpy(uuid, e2sb.s_uuid, sizeof(e2sb.s_uuid));
156 namesize = sizeof(e2sb.s_volume_name);
157 *label = smalloc(namesize + 1);
158 sstrncpy(*label, e2sb.s_volume_name, namesize);
159 rv = 0;
160 #if HAVE_XFS_XQM_H
161 } else if(lseek(fd, 0, SEEK_SET) == 0
162 && read(fd, (char *)&xfsb, sizeof(xfsb)) == sizeof(xfsb)
163 && (strncmp((char *)&xfsb.s_magic, XFS_SUPER_MAGIC_STR, 4) == 0 ||
164 strncmp((char *)&xfsb.s_magic, XFS_SUPER_MAGIC2_STR, 4) == 0)) {
165 memcpy(uuid, xfsb.s_uuid, sizeof(xfsb.s_uuid));
166 namesize = sizeof(xfsb.s_fsname);
167 *label = smalloc(namesize + 1);
168 sstrncpy(*label, xfsb.s_fsname, namesize);
169 rv = 0;
170 #endif /* HAVE_XFS_XQM_H */
171 } else if(lseek(fd, 65536, SEEK_SET) == 65536
172 && read(fd, (char *)&reisersb, sizeof(reisersb)) == sizeof(reisersb)
173 && !strncmp((char *)&reisersb.s_magic, REISER_SUPER_MAGIC, 9)) {
174 memcpy(uuid, reisersb.s_uuid, sizeof(reisersb.s_uuid));
175 namesize = sizeof(reisersb.s_volume_name);
176 *label = smalloc(namesize + 1);
177 sstrncpy(*label, reisersb.s_volume_name, namesize);
178 rv = 0;
179 }
180 close(fd);
181 return rv;
182 }
184 static void
185 uuidcache_addentry(char *device, char *label, char *uuid)
186 {
187 struct uuidCache_s *last;
189 if(!uuidCache) {
190 last = uuidCache = smalloc(sizeof(*uuidCache));
191 } else {
192 for(last = uuidCache; last->next; last = last->next);
193 last->next = smalloc(sizeof(*uuidCache));
194 last = last->next;
195 }
196 last->next = NULL;
197 last->device = device;
198 last->label = label;
199 memcpy(last->uuid, uuid, sizeof(last->uuid));
200 }
202 static void
203 uuidcache_init(void)
204 {
205 char line[100];
206 char *s;
207 int ma, mi, sz;
208 static char ptname[100];
209 FILE *procpt;
210 char uuid[16], *label = NULL;
211 char device[110];
212 int firstPass;
213 int handleOnFirst;
215 if(uuidCache) {
216 return;
217 }
219 procpt = fopen(PROC_PARTITIONS, "r");
220 if(procpt == NULL) {
221 return;
222 }
224 for(firstPass = 1; firstPass >= 0; firstPass--) {
225 fseek(procpt, 0, SEEK_SET);
226 while(fgets(line, sizeof(line), procpt)) {
227 if(sscanf(line, " %d %d %d %[^\n ]",
228 &ma, &mi, &sz, ptname) != 4)
229 {
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++);
250 if(isdigit((int)s[-1])) {
251 /*
252 * Note: this is a heuristic only - there is no reason
253 * why these devices should live in /dev.
254 * Perhaps this directory should be specifiable by option.
255 * One might for example have /devlabel with links to /dev
256 * for the devices that may be accessed in this way.
257 * (This is useful, if the cdrom on /dev/hdc must not
258 * be accessed.)
259 */
260 ssnprintf(device, sizeof(device), "%s/%s",
261 DEVLABELDIR, ptname);
262 if(!get_label_uuid(device, &label, uuid)) {
263 uuidcache_addentry(sstrdup(device),
264 label, uuid);
265 }
266 }
267 }
268 }
269 fclose(procpt);
270 }
272 static unsigned char
273 fromhex(char c)
274 {
275 if(isdigit((int)c)) {
276 return (c - '0');
277 } else if(islower((int)c)) {
278 return (c - 'a' + 10);
279 } else {
280 return (c - 'A' + 10);
281 }
282 }
284 static char *
285 get_spec_by_x(int n, const char *t)
286 {
287 struct uuidCache_s *uc;
289 uuidcache_init();
290 uc = uuidCache;
292 while(uc) {
293 switch(n) {
294 case UUID:
295 if(!memcmp(t, uc->uuid, sizeof(uc->uuid))) {
296 return sstrdup(uc->device);
297 }
298 break;
299 case VOL:
300 if(!strcmp(t, uc->label)) {
301 return sstrdup(uc->device);
302 }
303 break;
304 }
305 uc = uc->next;
306 }
307 return NULL;
308 }
310 static char *
311 get_spec_by_uuid(const char *s)
312 {
313 char uuid[16];
314 int i;
316 if(strlen(s) != 36
317 || s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-') {
318 goto bad_uuid;
319 }
321 for(i=0; i<16; i++) {
322 if(*s == '-') {
323 s++;
324 }
325 if(!isxdigit((int)s[0]) || !isxdigit((int)s[1])) {
326 goto bad_uuid;
327 }
328 uuid[i] = ((fromhex(s[0]) << 4) | fromhex(s[1]));
329 s += 2;
330 }
331 return get_spec_by_x(UUID, uuid);
333 bad_uuid:
334 DEBUG("utils_mount: Found an invalid UUID: %s", s);
335 return NULL;
336 }
338 static char *get_spec_by_volume_label(const char *s)
339 {
340 return get_spec_by_x (VOL, s);
341 }
343 static char *get_device_name(const char *optstr)
344 {
345 char *rc;
347 if (optstr == NULL)
348 {
349 return (NULL);
350 }
351 else if (strncmp (optstr, "UUID=", 5) == 0)
352 {
353 DEBUG ("utils_mount: TODO: check UUID= code!");
354 rc = get_spec_by_uuid (optstr + 5);
355 }
356 else if (strncmp (optstr, "LABEL=", 6) == 0)
357 {
358 DEBUG ("utils_mount: TODO: check LABEL= code!");
359 rc = get_spec_by_volume_label (optstr + 6);
360 }
361 else
362 {
363 rc = sstrdup (optstr);
364 }
366 if(!rc)
367 {
368 DEBUG ("utils_mount: Error checking device name: optstr = %s", optstr);
369 }
370 return rc;
371 }
373 /* What weird OS is this..? I can't find any info with google :/ -octo */
374 #if HAVE_LISTMNTENT && 0
375 static cu_mount_t *cu_mount_listmntent (void)
376 {
377 cu_mount_t *last = *list;
378 struct tabmntent *p;
379 struct mntent *mnt;
381 struct tabmntent *mntlist;
382 if(listmntent(&mntlist, COLLECTD_MNTTAB, NULL, NULL) < 0) {
383 #if COLLECT_DEBUG
384 char errbuf[1024];
385 DEBUG("utils_mount: calling listmntent() failed: %s",
386 sstrerror (errno, errbuf, sizeof (errbuf)));
387 #endif /* COLLECT_DEBUG */
388 }
390 for(p = mntlist; p; p = p->next) {
391 char *loop = NULL, *device = NULL;
393 mnt = p->ment;
394 loop = cu_mount_getoptionvalue(mnt->mnt_opts, "loop=");
395 if(loop == NULL) { /* no loop= mount */
396 device = get_device_name(mnt->mnt_fsname);
397 if(device == NULL) {
398 DEBUG("utils_mount: can't get devicename for fs (%s) %s (%s)"
399 ": ignored", mnt->mnt_type,
400 mnt->mnt_dir, mnt->mnt_fsname);
401 continue;
402 }
403 } else {
404 device = loop;
405 }
406 if(*list == NULL) {
407 *list = (cu_mount_t *)smalloc(sizeof(cu_mount_t));
408 last = *list;
409 } else {
410 while(last->next != NULL) { /* is last really last? */
411 last = last->next;
412 }
413 last->next = (cu_mount_t *)smalloc(sizeof(cu_mount_t));
414 last = last->next;
415 }
416 last->dir = sstrdup(mnt->mnt_dir);
417 last->spec_device = sstrdup(mnt->mnt_fsname);
418 last->device = device;
419 last->type = sstrdup(mnt->mnt_type);
420 last->options = sstrdup(mnt->mnt_opts);
421 last->next = NULL;
422 } /* for(p = mntlist; p; p = p->next) */
424 return(last);
425 } /* cu_mount_t *cu_mount_listmntent(void) */
426 /* #endif HAVE_LISTMNTENT */
428 /* 4.4BSD and Mac OS X (getfsstat) or NetBSD (getvfsstat) */
429 #elif HAVE_GETVFSSTAT || HAVE_GETFSSTAT
430 static cu_mount_t *cu_mount_getfsstat (void)
431 {
432 #if HAVE_GETVFSSTAT
433 # define STRUCT_STATFS struct statvfs
434 # define CMD_STATFS getvfsstat
435 # define FLAGS_STATFS ST_NOWAIT
436 /* #endif HAVE_GETVFSSTAT */
437 #elif HAVE_GETFSSTAT
438 # define STRUCT_STATFS struct statfs
439 # define CMD_STATFS getfsstat
440 # define FLAGS_STATFS MNT_NOWAIT
441 #endif /* HAVE_GETFSSTAT */
443 int bufsize;
444 STRUCT_STATFS *buf;
446 int num;
447 int i;
449 cu_mount_t *first = NULL;
450 cu_mount_t *last = NULL;
451 cu_mount_t *new = NULL;
453 /* Get the number of mounted file systems */
454 if ((bufsize = CMD_STATFS (NULL, 0, FLAGS_STATFS)) < 1)
455 {
456 #if COLLECT_DEBUG
457 char errbuf[1024];
458 DEBUG ("utils_mount: getv?fsstat failed: %s",
459 sstrerror (errno, errbuf, sizeof (errbuf)));
460 #endif /* COLLECT_DEBUG */
461 return (NULL);
462 }
464 if ((buf = (STRUCT_STATFS *) malloc (bufsize * sizeof (STRUCT_STATFS)))
465 == NULL)
466 return (NULL);
467 memset (buf, '\0', bufsize * sizeof (STRUCT_STATFS));
469 /* The bufsize needs to be passed in bytes. Really. This is not in the
470 * manpage.. -octo */
471 if ((num = CMD_STATFS (buf, bufsize * sizeof (STRUCT_STATFS), FLAGS_STATFS)) < 1)
472 {
473 #if COLLECT_DEBUG
474 char errbuf[1024];
475 DEBUG ("utils_mount: getv?fsstat failed: %s",
476 sstrerror (errno, errbuf, sizeof (errbuf)));
477 #endif /* COLLECT_DEBUG */
478 free (buf);
479 return (NULL);
480 }
482 for (i = 0; i < num; i++)
483 {
484 if ((new = malloc (sizeof (cu_mount_t))) == NULL)
485 break;
486 memset (new, '\0', sizeof (cu_mount_t));
488 /* Copy values from `struct mnttab' */
489 new->dir = sstrdup (buf[i].f_mntonname);
490 new->spec_device = sstrdup (buf[i].f_mntfromname);
491 new->type = sstrdup (buf[i].f_fstypename);
492 new->options = NULL;
493 new->device = get_device_name (new->options);
494 new->next = NULL;
496 /* Append to list */
497 if (first == NULL)
498 {
499 first = new;
500 last = new;
501 }
502 else
503 {
504 last->next = new;
505 last = new;
506 }
507 }
509 free (buf);
511 return (first);
512 }
513 /* #endif HAVE_GETVFSSTAT || HAVE_GETFSSTAT */
515 /* Solaris (SunOS 10): int getmntent(FILE *fp, struct mnttab *mp); */
516 #elif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT
517 static cu_mount_t *cu_mount_gen_getmntent (void)
518 {
519 struct mnttab mt;
520 FILE *fp;
522 cu_mount_t *first = NULL;
523 cu_mount_t *last = NULL;
524 cu_mount_t *new = NULL;
526 DEBUG ("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
528 if ((fp = fopen (COLLECTD_MNTTAB, "r")) == NULL)
529 {
530 char errbuf[1024];
531 ERROR ("fopen (%s): %s", COLLECTD_MNTTAB,
532 sstrerror (errno, errbuf, sizeof (errbuf)));
533 return (NULL);
534 }
536 while (getmntent (fp, &mt) == 0)
537 {
538 if ((new = malloc (sizeof (cu_mount_t))) == NULL)
539 break;
540 memset (new, '\0', sizeof (cu_mount_t));
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 = malloc (sizeof (cu_mount_t))) == NULL)
597 break;
598 memset (new, '\0', sizeof (cu_mount_t));
600 /* Copy values from `struct mntent *' */
601 new->dir = sstrdup (me.mnt_dir);
602 new->spec_device = sstrdup (me.mnt_fsname);
603 new->type = sstrdup (me.mnt_type);
604 new->options = sstrdup (me.mnt_opts);
605 new->device = get_device_name (new->options);
606 new->next = NULL;
608 DEBUG ("utils_mount: new = {dir = %s, spec_device = %s, type = %s, options = %s, device = %s}",
609 new->dir, new->spec_device, new->type, new->options, new->device);
611 /* Append to list */
612 if (first == NULL)
613 {
614 first = new;
615 last = new;
616 }
617 else
618 {
619 last->next = new;
620 last = new;
621 }
622 }
624 endmntent (fp);
626 DEBUG ("utils_mount: return (0x%p)", (void *) first);
628 return (first);
629 } /* HAVE_GETMNTENT_R */
631 #elif HAVE_ONE_GETMNTENT
632 static cu_mount_t *cu_mount_getmntent (void)
633 {
634 FILE *fp;
635 struct mntent *me;
637 cu_mount_t *first = NULL;
638 cu_mount_t *last = NULL;
639 cu_mount_t *new = NULL;
641 DEBUG ("utils_mount: (void); COLLECTD_MNTTAB = %s", COLLECTD_MNTTAB);
643 if ((fp = setmntent (COLLECTD_MNTTAB, "r")) == NULL)
644 {
645 char errbuf[1024];
646 ERROR ("setmntent (%s): %s", COLLECTD_MNTTAB,
647 sstrerror (errno, errbuf, sizeof (errbuf)));
648 return (NULL);
649 }
651 while ((me = getmntent (fp)) != NULL)
652 {
653 if ((new = malloc (sizeof (cu_mount_t))) == NULL)
654 break;
655 memset (new, '\0', sizeof (cu_mount_t));
657 /* Copy values from `struct mntent *' */
658 new->dir = sstrdup (me->mnt_dir);
659 new->spec_device = sstrdup (me->mnt_fsname);
660 new->type = sstrdup (me->mnt_type);
661 new->options = sstrdup (me->mnt_opts);
662 new->device = get_device_name (new->options);
663 new->next = NULL;
665 DEBUG ("utils_mount: new = {dir = %s, spec_device = %s, type = %s, options = %s, device = %s}",
666 new->dir, new->spec_device, new->type, new->options, new->device);
668 /* Append to list */
669 if (first == NULL)
670 {
671 first = new;
672 last = new;
673 }
674 else
675 {
676 last->next = new;
677 last = new;
678 }
679 }
681 endmntent (fp);
683 DEBUG ("utils_mount: return (0x%p)", (void *) first);
685 return (first);
686 }
687 #endif /* HAVE_ONE_GETMNTENT */
689 /* *** *** *** ******************************************** *** *** *** */
690 /* *** *** *** *** *** *** public functions *** *** *** *** *** *** */
691 /* *** *** *** ******************************************** *** *** *** */
693 cu_mount_t *cu_mount_getlist(cu_mount_t **list)
694 {
695 cu_mount_t *new;
696 cu_mount_t *first = NULL;
697 cu_mount_t *last = NULL;
699 if (list == NULL)
700 return (NULL);
702 if (*list != NULL)
703 {
704 first = *list;
705 last = first;
706 while (last->next != NULL)
707 last = last->next;
708 }
710 #if HAVE_LISTMNTENT && 0
711 new = cu_mount_listmntent ();
712 #elif HAVE_GETVFSSTAT || HAVE_GETFSSTAT
713 new = cu_mount_getfsstat ();
714 #elif HAVE_TWO_GETMNTENT || HAVE_GEN_GETMNTENT || HAVE_SUN_GETMNTENT
715 new = cu_mount_gen_getmntent ();
716 #elif HAVE_SEQ_GETMNTENT
717 # error "This version of `getmntent' hat not yet been implemented!"
718 #elif HAVE_ONE_GETMNTENT
719 new = cu_mount_getmntent ();
720 #else
721 # error "Could not determine how to find mountpoints."
722 #endif
724 if (first != NULL)
725 {
726 last->next = new;
727 }
728 else
729 {
730 first = new;
731 last = new;
732 *list = first;
733 }
735 while ((last != NULL) && (last->next != NULL))
736 last = last->next;
738 return (last);
739 } /* cu_mount_t *cu_mount_getlist(cu_mount_t **list) */
741 void cu_mount_freelist (cu_mount_t *list)
742 {
743 cu_mount_t *this;
744 cu_mount_t *next;
746 for (this = list; this != NULL; this = next)
747 {
748 next = this->next;
750 sfree (this->dir);
751 sfree (this->spec_device);
752 sfree (this->device);
753 sfree (this->type);
754 sfree (this->options);
755 sfree (this);
756 }
757 } /* void cu_mount_freelist(cu_mount_t *list) */
759 char *
760 cu_mount_checkoption(char *line, char *keyword, int full)
761 {
762 char *line2, *l2, *p1, *p2;
763 int l;
765 if(line == NULL || keyword == NULL) {
766 return NULL;
767 }
769 if(full != 0) {
770 full = 1;
771 }
773 line2 = sstrdup(line);
774 l2 = line2;
775 while(*l2 != '\0') {
776 if(*l2 == ',') {
777 *l2 = '\0';
778 }
779 l2++;
780 }
782 l = strlen(keyword);
783 p1 = line - 1;
784 p2 = strchr(line, ',');
785 do {
786 if(strncmp(line2+(p1-line)+1, keyword, l+full) == 0) {
787 free(line2);
788 return p1+1;
789 }
790 p1 = p2;
791 if(p1 != NULL) {
792 p2 = strchr(p1+1, ',');
793 }
794 } while(p1 != NULL);
796 free(line2);
797 return NULL;
798 } /* char *cu_mount_checkoption(char *line, char *keyword, int full) */
800 char *
801 cu_mount_getoptionvalue(char *line, char *keyword)
802 {
803 char *r;
805 r = cu_mount_checkoption(line, keyword, 0);
806 if(r != NULL) {
807 char *p;
808 r += strlen(keyword);
809 p = strchr(r, ',');
810 if(p == NULL) {
811 return sstrdup(r);
812 } else {
813 char *m;
814 if((p-r) == 1) {
815 return NULL;
816 }
817 m = (char *)smalloc(p-r+1);
818 sstrncpy(m, r, p-r+1);
819 return m;
820 }
821 }
822 return r;
823 } /* char *cu_mount_getoptionvalue(char *line, char *keyword) */
825 int
826 cu_mount_type(const char *type)
827 {
828 if(strcmp(type, "ext3") == 0) return CUMT_EXT3;
829 if(strcmp(type, "ext2") == 0) return CUMT_EXT2;
830 if(strcmp(type, "ufs") == 0) return CUMT_UFS;
831 if(strcmp(type, "vxfs") == 0) return CUMT_VXFS;
832 if(strcmp(type, "zfs") == 0) return CUMT_ZFS;
833 return CUMT_UNKNOWN;
834 } /* int cu_mount_type(const char *type) */