2 files changed, 62 insertions, 0 deletions

diff --git a/libbb/bb_cat.c b/libbb/bb_cat.c
new file mode 100644
index 000000000..0a4a350fb
--- /dev/null
+++ b/libbb/bb_cat.c
@@ -0,0 +1,33 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+//kbuild:lib-y += bb_cat.o
+
+#include "libbb.h"
+
+int FAST_FUNC bb_cat(char **argv)
+{
+        int fd;
+        int retval = EXIT_SUCCESS;
+
+        if (!*argv)
+                argv = (char**) &bb_argv_dash;
+
+        do {
+                fd = open_or_warn_stdin(*argv);
+                if (fd >= 0) {
+                        /* This is not a xfunc - never exits */
+                        off_t r = bb_copyfd_eof(fd, STDOUT_FILENO);
+                        if (fd != STDIN_FILENO)
+                                close(fd);
+                        if (r >= 0)
+                                continue;
+                }
+                retval = EXIT_FAILURE;
+        } while (*++argv);
+
+        return retval;
+}
diff --git a/libbb/print_numbered_lines.c b/libbb/print_numbered_lines.c
new file mode 100644
index 000000000..702aed1ea
--- /dev/null
+++ b/libbb/print_numbered_lines.c
@@ -0,0 +1,29 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Copyright (C) 2017 Denys Vlasenko <vda.linux@googlemail.com>
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+//kbuild:lib-y += print_numbered_lines.o
+
+#include "libbb.h"
+
+void FAST_FUNC print_numbered_lines(struct number_state *ns, const char *filename)
+{
+        FILE *fp = fopen_or_warn_stdin(filename);
+        unsigned N = ns->start;
+        char *line;
+
+        while ((line = xmalloc_fgetline(fp)) != NULL) {
+                if (ns->all
+                 || (ns->nonempty && line[0])
+                ) {
+                        printf("%*u%s%s\n", ns->width, N, ns->sep, line);
+                        N += ns->inc;
+                } else if (ns->empty_str)
+                        fputs(ns->empty_str, stdout);
+                free(line);
+        }
+
+        fclose(fp);
+}