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Rob Landley5cf7c2d2006-02-21 06:44:43 +00001#
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
Denis Vlasenko7d219aa2006-10-05 10:17:08 +00008config PASSWORD_MINLEN
"Robert P. J. Day"087b9d62006-07-02 18:35:39 +00009 int "Minimum password length"
10 default 6
11 range 5 32
12 help
13 Minimum allowable password length.
14
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000015config MD5_SIZE_VS_SPEED
Denis Vlasenko4ee7cd42008-03-17 09:13:22 +000016 int "MD5: Trade Bytes for Speed"
Rob Landley5cf7c2d2006-02-21 06:44:43 +000017 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
Denis Vlasenko3afac4c2007-06-19 13:46:24 +000029config 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
Denis Vlasenkoa61cb922007-06-19 11:24:47 +000036config 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
Denis Vlasenko38f63192007-01-22 09:03:07 +000044config FEATURE_EDITING
45 bool "Command line editing"
46 default n
47 help
Denis Vlasenkoe8a07882007-06-10 15:08:44 +000048 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.
Denis Vlasenko38f63192007-01-22 09:03:07 +000059
Denis Vlasenko38f63192007-01-22 09:03:07 +000060config FEATURE_EDITING_VI
61 bool "vi-style line editing commands"
62 default n
63 depends on FEATURE_EDITING
64 help
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +000065 Enable vi-style line editing. In shells, this mode can be
Denis Vlasenko38f63192007-01-22 09:03:07 +000066 turned on and off with "set -o vi" and "set +o vi".
67
68config FEATURE_EDITING_HISTORY
69 int "History size"
70 range 0 99999
71 default 15
72 depends on FEATURE_EDITING
73 help
74 Specify command history size.
75
76config FEATURE_EDITING_SAVEHISTORY
77 bool "History saving"
78 default n
79 depends on ASH && FEATURE_EDITING
80 help
81 Enable history saving in ash shell.
82
83config FEATURE_TAB_COMPLETION
84 bool "Tab completion"
85 default n
86 depends on FEATURE_EDITING
87 help
88 Enable tab completion.
89
90config FEATURE_USERNAME_COMPLETION
91 bool "Username completion"
92 default n
93 depends on FEATURE_TAB_COMPLETION
94 help
95 Enable username completion.
96
97config FEATURE_EDITING_FANCY_PROMPT
98 bool "Fancy shell prompts"
99 default n
100 depends on FEATURE_EDITING
101 help
102 Setting this option allows for prompts to use things like \w and
103 \$ and escape codes.
104
Denys Vlasenko020f4062009-05-17 16:44:54 +0200105config FEATURE_EDITING_ASK_TERMINAL
106 bool "Query cursor position from terminal"
107 default n
108 depends on FEATURE_EDITING
109 help
110 Allow usage of "ESC [ 6 n" sequence. Terminal answers back with
111 current cursor position. This information is used to make line
112 editing more robust in some cases.
113 If you are not sure whether your terminals respond to this code
114 correctly, or want to save on code size (about 300 bytes),
115 then do not turn this option on.
116
Denys Vlasenko2d7b5bf2009-07-05 12:49:29 +0200117config FEATURE_NON_POSIX_CP
118 bool "Non-POSIX, but safer, copying to special nodes"
119 default y
120 help
121 With this option, "cp file symlink" will delete symlink
122 and create a regular file. This does not conform to POSIX,
123 but prevents a symlink attack.
124 Similarly, "cp file device" will not send file's data
125 to the device.
126
Denis Vlasenkod5fe8802008-02-13 16:52:00 +0000127config FEATURE_VERBOSE_CP_MESSAGE
128 bool "Give more precise messages when copy fails (cp, mv etc)"
129 default n
130 help
131 Error messages with this feature enabled:
132 $ cp file /does_not_exist/file
133 cp: cannot create '/does_not_exist/file': Path does not exist
134 $ cp file /vmlinuz/file
135 cp: cannot stat '/vmlinuz/file': Path has non-directory component
136 If this feature is not enabled, they will be, respectively:
137 cp: cannot remove '/does_not_exist/file': No such file or directory
138 cp: cannot stat '/vmlinuz/file': Not a directory
139 respectively.
140 This will cost you ~60 bytes.
141
Denis Vlasenko4c139222007-12-02 03:27:42 +0000142config FEATURE_COPYBUF_KB
143 int "Copy buffer size, in kilobytes"
144 range 1 1024
145 default 4
146 help
147 Size of buffer used by cp, mv, install etc.
148 Buffers which are 4 kb or less will be allocated on stack.
149 Bigger buffers will be allocated with mmap, with fallback to 4 kb
150 stack buffer if mmap fails.
151
Denis Vlasenko459be352007-06-17 19:09:05 +0000152config MONOTONIC_SYSCALL
153 bool "Use clock_gettime(CLOCK_MONOTONIC) syscall"
154 default y
155 help
156 Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring
157 time intervals (time, ping, traceroute etc need this).
158 Probably requires Linux 2.6+. If not selected, gettimeofday
159 will be used instead (which gives wrong results if date/time
160 is reset).
161
Denis Vlasenkofb79a2e2007-07-14 22:07:14 +0000162config IOCTL_HEX2STR_ERROR
163 bool "Use ioctl names rather than hex values in error messages"
164 default y
165 help
166 Use ioctl names rather than hex values in error messages
167 (e.g. VT_DISALLOCATE rather than 0x5608). If disabled this
168 saves about 1400 bytes.
Bernhard Reutner-Fischerf3b778a2008-05-16 16:10:31 +0000169
170config FEATURE_HWIB
171 bool "Support infiniband HW"
172 default y
173 help
174 Support for printing infiniband addresses in
175 network applets.
Denys Vlasenkobcbd37d2009-06-18 13:23:58 +0200176
Rob Landley5cf7c2d2006-02-21 06:44:43 +0000177endmenu