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gunzip: add support for long options

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Add support for long options.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Aaro Koskinen 2015-10-26 23:42:32 +02:00 committed by Denys Vlasenko
parent 1de25a6e87
commit fbe50cf6bc
1 changed files with 20 additions and 0 deletions
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20
archival/bbunzip.c
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@ -290,6 +290,13 @@ int uncompress_main(int argc UNUSED_PARAM, char **argv)
//config: gunzip is used to decompress archives created by gzip.
//config: You can use the `-t' option to test the integrity of
//config: an archive, without decompressing it.
//config:
//config:config FEATURE_GUNZIP_LONG_OPTIONS
//config: bool "Enable long options"
//config: default y
//config: depends on GUNZIP && LONG_OPTS
//config: help
//config: Enable use of long options.
//applet:IF_GUNZIP(APPLET(gunzip, BB_DIR_BIN, BB_SUID_DROP))
//applet:IF_GUNZIP(APPLET_ODDNAME(zcat, gunzip, BB_DIR_BIN, BB_SUID_DROP, zcat))
@ -321,6 +328,16 @@ char* FAST_FUNC make_new_name_gunzip(char *filename, const char *expected_ext UN
}
return filename;
}
#if ENABLE_FEATURE_GUNZIP_LONG_OPTIONS
static const char gunzip_longopts[] ALIGN1 =
"stdout\0" No_argument "c"
"to-stdout\0" No_argument "c"
"force\0" No_argument "f"
"test\0" No_argument "t"
;
#endif
/*
* Linux kernel build uses gzip -d -n. We accept and ignore it.
* Man page says:
@ -337,6 +354,9 @@ char* FAST_FUNC make_new_name_gunzip(char *filename, const char *expected_ext UN
int gunzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int gunzip_main(int argc UNUSED_PARAM, char **argv)
{
#if ENABLE_FEATURE_GUNZIP_LONG_OPTIONS
applet_long_options = gunzip_longopts;
#endif
getopt32(argv, "cfvqdtn");
argv += optind;