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password utils: improve --help, make DEFAULT_PASSWD_ALGO visible if CHPASSWD

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Was:
    $ cryptpw --help
    ...
    Print crypt(3) hashed PASSWORD

        -P,--password-fd=N	Read password from fd N
        -m,--method=TYPE	Encryption method
        -S,--salt=SALT

User: "What methods exist? which one os default?"

Now:
    Print crypt(3) hashed PASSWORD

        -P,--password-fd N	Read password from fd N
        -m,--method TYPE	des,md5,sha256/512 (default des)
        -S,--salt SALT

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2017-01-20 19:47:49 +01:00
parent 38972a8df1
commit 9731ca7611
4 changed files with 19 additions and 11 deletions
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8
include/usage.src.h
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@@ -14,6 +14,14 @@
#define NOUSAGE_STR "\b"
#if !ENABLE_USE_BB_CRYPT || ENABLE_USE_BB_CRYPT_SHA
# define CRYPT_METHODS_HELP_STR "des,md5,sha256/512" \
" (default "CONFIG_FEATURE_DEFAULT_PASSWD_ALGO")"
#else
# define CRYPT_METHODS_HELP_STR "des,md5" \
" (default "CONFIG_FEATURE_DEFAULT_PASSWD_ALGO")"
#endif
INSERT
#define busybox_notes_usage \