89 lines
2.3 KiB
Diff
89 lines
2.3 KiB
Diff
diff --git a/find/fstype.c b/find/fstype.c
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index 21c446b..502e208 100644
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--- a/find/fstype.c
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+++ b/find/fstype.c
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@@ -205,7 +205,72 @@ must_read_fs_list (bool need_fs_type)
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return entries;
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}
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+/* Return the device number from MOUNT_OPTIONS, if possible.
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+ Otherwise return (dev_t) -1. Taken from 'mountlist' module
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+ from gnulib. */
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+static dev_t
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+dev_from_mount_options (char const *mount_options)
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+{
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+ /* GNU/Linux allows file system implementations to define their own
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+ meaning for "dev=" mount options, so don't trust the meaning
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+ here. */
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+# ifndef __linux__
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+
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+ static char const dev_pattern[] = ",dev=";
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+ char const *devopt = strstr (mount_options, dev_pattern);
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+
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+ if (devopt)
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+ {
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+ char const *optval = devopt + sizeof dev_pattern - 1;
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+ char *optvalend;
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+ unsigned long int dev;
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+ errno = 0;
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+ dev = strtoul (optval, &optvalend, 16);
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+ if (optval != optvalend
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+ && (*optvalend == '\0' || *optvalend == ',')
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+ && ! (dev == ULONG_MAX && errno == ERANGE)
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+ && dev == (dev_t) dev)
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+ return dev;
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+ }
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+# endif
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+ (void) mount_options;
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+ return -1;
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+}
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+
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+/* Return true if the file described by STATP is on autofs file system
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+ and call set_fstype_devno () if the autofs file system is matched. */
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+static bool
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+filesystem_check_autofs (const struct stat *statp)
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+{
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+ FILE *fp;
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+ struct mntent *mnt;
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+ struct mount_entry entry;
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+ bool match = false;
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+
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+ /* open /proc/mounts because autofs is not listed in /etc/mtab */
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+ fp = setmntent ("/proc/mounts", "r");
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+ if (fp == NULL)
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+ return false;
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+
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+ while ((mnt = getmntent (fp)))
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+ {
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+ if (0 != strcmp ("autofs", mnt->mnt_type))
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+ continue;
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+
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+ entry.me_mountdir = mnt->mnt_dir;
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+ entry.me_dev = dev_from_mount_options (mnt->mnt_opts);
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+ set_fstype_devno (&entry);
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+ if (entry.me_dev == statp->st_dev)
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+ {
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+ match = true;
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+ break;
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+ }
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+ }
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+
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+ endmntent (fp);
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+ return match;
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+}
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/* Return a newly allocated string naming the type of file system that the
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file PATH, described by STATP, is on.
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@@ -244,6 +309,10 @@ file_system_type_uncached (const struct stat *statp, const char *path)
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}
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free_file_system_list (entries);
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+ /* check for autofs */
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+ if (type == NULL && filesystem_check_autofs (statp))
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+ type = xstrdup ("autofs");
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+
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/* Don't cache unknown values. */
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fstype_known = (type != NULL);
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