nl: new applet; also implement cat -nb (similar functionality to nl)

function                                             old     new   delta
nl_main                                                -     201    +201
print_numbered_lines                                   -     115    +115
cat_main                                              36     149    +113
static.nl_longopts                                     -     106    +106
packed_usage                                       31081   31182    +101
applet_main                                         1488    1492      +4
applet_names                                        2575    2578      +3
applet_suid                                           93      94      +1
applet_install_loc                                   186     187      +1
------------------------------------------------------------------------------
(add/remove: 4/0 grow/shrink: 6/0 up/down: 645/0)             Total: 645 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/libbb.h b/include/libbb.h
index e97efcb6e..a2c699b54 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1271,6 +1271,16 @@ int bunzip2_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 void bb_displayroutes(int noresolve, int netstatfmt) FAST_FUNC;
 #endif
 
+struct number_state {
+        unsigned width;
+        unsigned start;
+        unsigned inc;
+        const char *sep;
+        const char *empty_str;
+        smallint all, nonempty;
+};
+void print_numbered_lines(struct number_state *ns, const char *filename) FAST_FUNC;
+
 
 /* Networking */
 /* This structure defines protocol families and their handlers. */