Avoid double-close of fd in loopfiles_lines.

Test: no EBADF in `strace -e close ./toybox tac /proc/version`

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/lib.c b/lib/lib.c
index 47e5ca21..53962a59 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -694,7 +694,8 @@ static void loopfile_lines_bridge(int fd, char *name)
 void loopfiles_lines(char **argv, void (*function)(char **pline, long len))
 {
   do_lines_bridge = function;
-  loopfiles(argv, loopfile_lines_bridge);
+  // No O_CLOEXEC because we need to call fclose.
+  loopfiles_rw(argv, O_RDONLY|WARN_ONLY, 0, loopfile_lines_bridge);
 }
 
 // Slow, but small.