fsmagic: sort array by value and use bsearch for faster lookup
* defs.h (xlat_search): New prototype.
* util.c (xlat_bsearch_compare, xlat_search): New functions.
* file.c (sprintfstype): Use xlat_search for fsmagic lookup.
* xlat/fsmagic.in: Sort by value and mark as not NULL-terminated.
* tests/statfs.c: New file.
* tests/statfs.test: New test.
* tests/Makefile.am (check_PROGRAMS): Add statfs.
(statfs_CFLAGS): Define.
(TESTS): Add statfs.test.
* tests/.gitignore: Add statfs.
diff --git a/defs.h b/defs.h
index 21c7b2e..cd9817b 100644
--- a/defs.h
+++ b/defs.h
@@ -648,6 +648,7 @@
extern int getfdpath(struct tcb *, int, char *, unsigned);
extern const char *xlookup(const struct xlat *, const unsigned int);
+extern const char *xlat_search(const struct xlat *, const size_t, const unsigned int);
extern int string_to_uint(const char *str);
extern int string_quote(const char *, char *, long, int);