Mercurial > hg > toybox
annotate lib/getmountlist.c @ 847:2506cbdccd20
Partial cleanup of find
- Remove unnecessary headers
- dump_node is not used anywhere
- exec_buf is unused
- Replace SUCCESS with 1 and simplify code accordingly
- a==0 -> !a
- Simplify an incremation pattern using pre-increments
- Add static keyword to functions
- Make error messages print to stderr
author | Felix Janda <felix.janda@posteo.de> |
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date | Wed, 10 Apr 2013 19:25:06 +0200 |
parents | 8eb26e828756 |
children | ae7a0fd5363f |
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1 /* getmountlist.c - Get a linked list of mount points, with stat information. |
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2 * |
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3 * Copyright 2006 Rob Landley <rob@landley.net> |
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4 */ |
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5 |
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6 #include "toys.h" |
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7 |
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8 #include <mntent.h> |
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9 |
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10 char *path_mounts = "/proc/mounts"; |
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11 |
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12 // Get a list of mount points from /etc/mtab or /proc/mounts, including |
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13 // statvfs() information. This returns a reversed list, which is good for |
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14 // finding overmounts and such. |
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15 |
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16 struct mtab_list *getmountlist(int die) |
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17 { |
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18 FILE *fp; |
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19 struct mtab_list *mtlist, *mt; |
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20 struct mntent me; |
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21 char evilbuf[2*PATH_MAX]; |
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22 |
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23 mtlist = 0; |
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24 if (!(fp = setmntent(path_mounts, "r"))) { |
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25 if (die) error_exit("cannot open %s", path_mounts); |
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26 } else { |
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27 while (getmntent_r(fp, &me, evilbuf, sizeof(evilbuf))) { |
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28 mt = xzalloc(sizeof(struct mtab_list) + strlen(me.mnt_fsname) + |
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29 strlen(me.mnt_dir) + strlen(me.mnt_type) + 3); |
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30 mt->next = mtlist; |
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31 // Get information about this filesystem. Yes, we need both. |
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32 stat(me.mnt_dir, &(mt->stat)); |
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33 statvfs(me.mnt_dir, &(mt->statvfs)); |
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34 // Remember information from /proc/mounts |
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35 mt->dir = stpcpy(mt->type, me.mnt_type) + 1; |
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36 mt->device = stpcpy(mt->dir, me.mnt_dir) + 1; |
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37 strcpy(mt->device, me.mnt_fsname); |
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38 mtlist = mt; |
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39 } |
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40 } |
703 | 41 endmntent(fp); |
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42 return mtlist; |
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43 } |