From 2c0d3f5fd08ccc6963c402030efcbe8a2c028f2d Mon Sep 17 00:00:00 2001 From: Pascal Bach Date: Fri, 18 Dec 2015 19:01:14 +0100 Subject: chpasswd: support -c argument and respect DEFAULT_PASSWD_ALGO Signed-off-by: Pascal Bach <pascal.bach@siemens.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> --- libbb/pw_encrypt.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'libbb/pw_encrypt.c') diff --git a/libbb/pw_encrypt.c b/libbb/pw_encrypt.c index bfc7030..dbc15e5 100644 --- a/libbb/pw_encrypt.c +++ b/libbb/pw_encrypt.c @@ -52,14 +52,18 @@ char* FAST_FUNC crypt_make_pw_salt(char salt[MAX_PW_SALT_LEN], const char *algo) { int len = 2/2; char *salt_ptr = salt; - if (algo[0] != 'd') { /* not des */ + + /* Standard chpasswd uses uppercase algos ("MD5", not "md5"). + * Need to be case-insensitive in the code below. + */ + if ((algo[0]|0x20) != 'd') { /* not des */ len = 8/2; /* so far assuming md5 */ *salt_ptr++ = '$'; *salt_ptr++ = '1'; *salt_ptr++ = '$'; #if !ENABLE_USE_BB_CRYPT || ENABLE_USE_BB_CRYPT_SHA - if (algo[0] == 's') { /* sha */ - salt[1] = '5' + (strcmp(algo, "sha512") == 0); + if ((algo[0]|0x20) == 's') { /* sha */ + salt[1] = '5' + (strcasecmp(algo, "sha512") == 0); len = 16/2; } #endif -- cgit v1.1