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-rw-r--r--posix/unistd.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/posix/unistd.h b/posix/unistd.h
index 7a61ff5e86..3c8a7ced6a 100644
--- a/posix/unistd.h
+++ b/posix/unistd.h
@@ -1199,6 +1199,16 @@ int getentropy (void *__buffer, size_t __length) __wur
__attr_access ((__write_only__, 1, 2));
#endif
+#ifdef __USE_GNU
+/* Close all file descriptors in the range FD up to MAX_FD. The flag FLAGS
+ are define by the CLOSE_RANGE prefix. This function behaves like close
+ on the range and gaps where the file descriptor is invalid or errors
+ encountered while closing file descriptors are ignored. Returns 0 on
+ successor or -1 for failure (and sets errno accordingly). */
+extern int close_range (unsigned int __fd, unsigned int __max_fd,
+ int __flags) __THROW;
+#endif
+
/* Define some macros helping to catch buffer overflows. */
#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
# include <bits/unistd.h>