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autofs-5.1.7 - check for offset with no mount location
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From: Ian Kent <raven@themaw.net>
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Offsets need to have a mount location, check for it.
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Signed-off-by: Ian Kent <raven@themaw.net>
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---
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CHANGELOG | 1 +
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modules/parse_sun.c | 15 ++++++++++++++-
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2 files changed, 15 insertions(+), 1 deletion(-)
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diff --git a/CHANGELOG b/CHANGELOG
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index a9209755..42914160 100644
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--- a/CHANGELOG
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+++ b/CHANGELOG
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@@ -47,6 +47,7 @@
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- pass root length to mount_fullpath().
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- remove unused function master_submount_list_empty().
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- move amd mounts removal into lib/mounts.c.
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+- check for offset with no mount location.
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25/01/2021 autofs-5.1.7
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- make bind mounts propagation slave by default.
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diff --git a/modules/parse_sun.c b/modules/parse_sun.c
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index b1c2611c..a81d4028 100644
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--- a/modules/parse_sun.c
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+++ b/modules/parse_sun.c
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@@ -801,7 +801,20 @@ update_offset_entry(struct autofs_point *ap,
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memset(m_mapent, 0, MAPENT_MAX_LEN + 1);
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- /* Internal hosts map may have loc == NULL */
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+ if (!loc || !*loc) {
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+ const char *type = ap->entry->maps->type;
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+
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+ /* If it's not the internal hosts map it must have a
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+ * mount location.
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+ */
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+ if (!type || strcmp(type, "hosts")) {
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+ error(ap->logopt,
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+ MODPREFIX "syntax error in offset %s -> %s",
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+ m_offset, loc);
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+ return CHE_FAIL;
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+ }
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+ }
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+
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if (!*m_offset) {
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error(ap->logopt,
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MODPREFIX "syntax error in offset %s -> %s", m_offset, loc);
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