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/* vi: set sw=4 ts=4: */
/*
* This file was released into the public domain by Paul Fox.
*/
//config:config BBCONFIG
//config: bool "bbconfig (9.7 kb)"
//config: default n
//config: help
//config: The bbconfig applet will print the config file with which
//config: busybox was built.
//config:
//config:config FEATURE_COMPRESS_BBCONFIG
//config: bool "Compress bbconfig data"
//config: default y
//config: depends on BBCONFIG
//config: help
//config: Store bbconfig data in compressed form, uncompress them on-the-fly
//config: before output.
//config:
//config: If you have a really tiny busybox with few applets enabled (and
//config: bunzip2 isn't one of them), the overhead of the decompressor might
//config: be noticeable. Also, if you run executables directly from ROM
//config: and have very little memory, this might not be a win. Otherwise,
//config: you probably want this.
//applet:IF_BBCONFIG(APPLET(bbconfig, BB_DIR_BIN, BB_SUID_DROP))
//kbuild:lib-$(CONFIG_BBCONFIG) += bbconfig.o
//usage:#define bbconfig_trivial_usage
//usage: ""
//usage:#define bbconfig_full_usage "\n\n"
//usage: "Print the config file used by busybox build"
#include "libbb.h"
#include "bbconfigopts.h"
#if ENABLE_FEATURE_COMPRESS_BBCONFIG
# include "bb_archive.h"
# include "bbconfigopts_bz2.h"
#endif
int bbconfig_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int bbconfig_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
{
#if ENABLE_FEATURE_COMPRESS_BBCONFIG
bunzip_data *bd;
int i;
jmp_buf jmpbuf;
/* Setup for I/O error handling via longjmp */
i = setjmp(jmpbuf);
if (i == 0) {
i = start_bunzip(&jmpbuf,
&bd,
/* src_fd: */ -1,
/* inbuf: */ bbconfig_config_bz2,
/* len: */ sizeof(bbconfig_config_bz2)
);
}
/* read_bunzip can longjmp and end up here with i != 0
* on read data errors! Not trivial */
if (i == 0) {
/* Cannot use xmalloc: will leak bd in NOFORK case! */
char *outbuf = malloc_or_warn(sizeof(bbconfig_config));
if (outbuf) {
read_bunzip(bd, outbuf, sizeof(bbconfig_config));
full_write1_str(outbuf);
}
}
#else
full_write1_str(bbconfig_config);
#endif
return 0;
}
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