3778898f97
BusyBox has support for embedded shell scripts. Two types can be distinguished: custom scripts and scripts implementing applets. Custom scripts should be placed in the 'embed' directory at build time. They are given a default applet configuration and appear as applets to the user but no further configuration is possible. Applet scripts are integrated with the BusyBox build system and are intended to be used to ship standard applets that just happen to be implemented as scripts. They can be configured at build time and appear just like native applets. Such scripts should be placed in the 'applets_sh' directory. A stub C program should be written to provide the usual applet configuration details and placed in a suitable subsystem directory. It may be helpful to have a configuration option to enable any dependencies the script requires: see the 'nologin' applet for an example. function old new delta scripted_main - 41 +41 applet_names 2773 2781 +8 applet_main 1600 1604 +4 i2cdetect_main 672 674 +2 applet_suid 100 101 +1 applet_install_loc 200 201 +1 applet_flags 100 101 +1 packed_usage 33180 33179 -1 tryexec 159 152 -7 evalcommand 1661 1653 -8 script_names 9 - -9 packed_scripts 123 114 -9 complete_cmd_dir_file 826 811 -15 shellexec 271 254 -17 find_command 1007 990 -17 busybox_main 642 624 -18 run_applet_and_exit 100 78 -22 find_script_by_name 51 - -51 ------------------------------------------------------------------------------ (add/remove: 1/2 grow/shrink: 6/9 up/down: 58/-174) Total: -116 bytes text data bss dec hex filename 950034 477 7296 957807 e9d6f busybox_old 949918 477 7296 957691 e9cfb busybox_unstripped Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
28 lines
842 B
C
28 lines
842 B
C
//config:config NOLOGIN
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//config: bool "nologin"
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//config: default y
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//config: depends on ASH_EMBEDDED_SCRIPTS
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//config: help
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//config: Politely refuse a login
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//config:
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//config:config NOLOGIN_DEPENDENCIES
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//config: bool "Dependencies for nologin"
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//config: default y
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//config: depends on NOLOGIN
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//config: select CAT
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//config: select ECHO
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//config: select SLEEP
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//config: help
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//config: nologin is implemented as a shell script. It requires the
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//config: following in the runtime environment:
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//config: cat echo sleep
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//config: If you know these will be available externally you can
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//config: disable this option.
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//applet:IF_NOLOGIN(APPLET_SCRIPTED(nologin, scripted, BB_DIR_USR_SBIN, BB_SUID_DROP, nologin))
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//usage:#define nologin_trivial_usage
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//usage: ""
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//usage:#define nologin_full_usage "\n\n"
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//usage: "Politely refuse a login"
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