1#
2# For a description of the syntax of this configuration file,
3# see scripts/kbuild/config-language.txt.
4#
5
6menu "Busybox Library Tuning"
7
8config PASSWORD_MINLEN
9	int "Minimum password length"
10	default 6
11	range 5 32
12	help
13	  Minimum allowable password length.
14
15config MD5_SIZE_VS_SPEED
16	int " MD5: Trade Bytes for Speed"
17	default 2
18	range 0 3
19	help
20	  Trade binary size versus speed for the md5sum algorithm.
21	  Approximate values running uClibc and hashing
22	  linux-2.4.4.tar.bz2 were:
23	                    user times (sec)  text size (386)
24	  0 (fastest)         1.1                6144
25	  1                   1.4                5392
26	  2                   3.0                5088
27	  3 (smallest)        5.1                4912
28
29config FEATURE_FAST_TOP
30	bool "Faster /proc scanning code (+100 bytes)"
31	default n
32	help
33	  This option makes top (and ps) ~20% faster (or 20% less CPU hungry),
34	  but code size is slightly bigger.
35
36config FEATURE_ETC_NETWORKS
37	bool "Support for /etc/networks"
38	default n
39	help
40	  Enable support for network names in /etc/networks. This is
41	  a rarely used feature which allows you to use names
42	  instead of IP/mask pairs in route command.
43
44config FEATURE_EDITING
45	bool "Command line editing"
46	default n
47	help
48	  Enable line editing (mainly for shell command line).
49
50config FEATURE_EDITING_MAX_LEN
51	int "Maximum length of input"
52	range 128 8192
53	default 1024
54	depends on FEATURE_EDITING
55	help
56	  Line editing code uses on-stack buffers for storage.
57	  You may want to decrease this parameter if your target machine
58	  benefits from smaller stack usage.
59
60config FEATURE_EDITING_FANCY_KEYS
61	bool "Additional editing keys"
62	default n
63	depends on FEATURE_EDITING
64	help
65	  Enable additonal editing keys (Ctrl-E, Ctrl-U etc).
66	  Arrow keys, Home/End/Delete and Ctrl-W work even without this option.
67
68config FEATURE_EDITING_VI
69	bool "vi-style line editing commands"
70	default n
71	depends on FEATURE_EDITING
72	help
73	  Enable vi-style line editing.  In shells, this mode can be
74	  turned on and off with "set -o vi" and "set +o vi".
75
76config FEATURE_EDITING_HISTORY
77	int "History size"
78	range 0 99999
79	default 15
80	depends on FEATURE_EDITING
81	help
82	  Specify command history size.
83
84config FEATURE_EDITING_SAVEHISTORY
85	bool "History saving"
86	default n
87	depends on ASH && FEATURE_EDITING
88	help
89	  Enable history saving in ash shell.
90
91config FEATURE_TAB_COMPLETION
92	bool "Tab completion"
93	default n
94	depends on FEATURE_EDITING
95	help
96	  Enable tab completion.
97
98config FEATURE_USERNAME_COMPLETION
99	bool "Username completion"
100	default n
101	depends on FEATURE_TAB_COMPLETION
102	help
103	  Enable username completion.
104
105config FEATURE_EDITING_FANCY_PROMPT
106	bool "Fancy shell prompts"
107	default n
108	depends on FEATURE_EDITING
109	help
110	  Setting this option allows for prompts to use things like \w and
111	  \$ and escape codes.
112
113config MONOTONIC_SYSCALL
114	bool "Use clock_gettime(CLOCK_MONOTONIC) syscall"
115	default y
116	help
117	  Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring
118	  time intervals (time, ping, traceroute etc need this).
119	  Probably requires Linux 2.6+. If not selected, gettimeofday
120	  will be used instead (which gives wrong results if date/time
121	  is reset).
122
123config IOCTL_HEX2STR_ERROR
124	bool "Use ioctl names rather than hex values in error messages"
125	default y
126	help
127	  Use ioctl names rather than hex values in error messages
128	  (e.g. VT_DISALLOCATE rather than 0x5608). If disabled this
129	  saves about 1400 bytes.
130endmenu
131