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-rw-r--r--include/libbb.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/libbb.h b/include/libbb.h
index d059ac9de..19b3bba5f 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -637,7 +637,11 @@ const char* get_cached_groupname(gid_t gid);
void clear_username_cache(void);
/* internally usernames are saved in fixed-sized char[] buffers */
enum { USERNAME_MAX_SIZE = 16 - sizeof(int) };
-
+#if ENABLE_FEATURE_CHECK_NAMES
+void die_if_bad_username(const char* name);
+#else
+#define die_if_bad_username(name) ((void)(name))
+#endif
int execable_file(const char *name);
char *find_execable(const char *filename);