TheCloud/fuse-overlayfs
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plugins: load from default location

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if no -o plugins is specified, load them from $PKGLIBEXECDIR (usually
has the value /usr/libexec/fuse-overlayfs).

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2019-10-25 11:02:14 +02:00
parent 3fa10346c3
commit 715a95c39d
No known key found for this signature in database
GPG Key ID: E4730F97F60286ED
2 changed files with 37 additions and 4 deletions
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2
Makefile.am
View File

@ -8,6 +8,8 @@ EXTRA_DIST = m4/gnulib-cache.m4 rpm/fuse-overlayfs.spec.template autogen.sh fuse
CLEANFILES = fuse-overlayfs.1
AM_CPPFLAGS = -DPKGLIBEXECDIR='"$(pkglibexecdir)"'
fuse_overlayfs_CFLAGS = -I . -I $(abs_srcdir)/lib $(FUSE_CFLAGS)
fuse_overlayfs_LDFLAGS =
fuse_overlayfs_LDADD = lib/libgnu.a $(FUSE_LIBS)

39
main.c
View File

@ -4938,6 +4938,36 @@ set_limits ()
error (EXIT_FAILURE, errno, "cannot set nofile rlimit");
}
static char *
load_default_plugins ()
{
DIR *dp = NULL;
char *plugins = strdup ("");
dp = opendir (PKGLIBEXECDIR);
if (dp == NULL)
return plugins;
for (;;)
{
struct dirent *dent;
dent = readdir (dp);
if (dent == NULL)
break;
if (dent->d_type != DT_DIR)
{
char *new_plugins = NULL;
asprintf (&new_plugins, "%s/%s:%s", PKGLIBEXECDIR, dent->d_name, plugins);
free (plugins);
plugins = new_plugins;
}
}
closedir (dp);
return plugins;
}
int
main (int argc, char *argv[])
{
@ -5042,8 +5072,10 @@ main (int argc, char *argv[])
error (EXIT_FAILURE, errno, "cannot convert %s", lo.timeout_str);
}
if (lo.plugins)
lo.plugins_ctx = load_plugins (lo.plugins);
if (lo.plugins == NULL)
lo.plugins = load_default_plugins ();
lo.plugins_ctx = load_plugins (lo.plugins);
layers = read_dirs (&lo, lo.lowerdir, true, NULL);
if (layers == NULL)
@ -5133,8 +5165,7 @@ err_out1:
hash_free (lo.inodes);
if (lo.plugins)
plugin_free_all (lo.plugins_ctx);
plugin_free_all (lo.plugins_ctx);
free_mapping (lo.uid_mappings);
free_mapping (lo.gid_mappings);