*: unify concurrent-safe update of /etc/{passwd,group,[g]shadow}
by Tito (farmatito AT tiscali.it)
function old new delta
update_passwd 743 1171 +428
bb_perror_nomsg - 9 +9
find_main 436 444 +8
passwd_main 1023 1027 +4
nameval 202 206 +4
chpasswd_main 315 319 +4
bb__parsespent 119 117 -2
adduser_main 654 650 -4
addgroup_main 345 341 -4
sv_main 1228 1222 -6
deluser_main 173 160 -13
bb_internal_putpwent 69 - -69
add_user_to_group 231 - -231
del_line_matching 460 31 -429
------------------------------------------------------------------------------
(add/remove: 1/2 grow/shrink: 5/6 up/down: 457/-758) Total: -301 bytes
diff --git a/include/libbb.h b/include/libbb.h
index 0b94f70..1faa9e9 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1142,9 +1142,16 @@
* (otherwise we risk having same salt generated)
*/
extern int crypt_make_salt(char *p, int cnt, int rnd) FAST_FUNC;
+
/* Returns number of lines changed, or -1 on error */
-extern int update_passwd(const char *filename, const char *username,
- const char *new_pw) FAST_FUNC;
+#if !(ENABLE_FEATURE_ADDUSER_TO_GROUP || ENABLE_FEATURE_DEL_USER_FROM_GROUP)
+#define update_passwd(filename, username, data, member) \
+ update_passwd(filename, username, data)
+#endif
+extern int update_passwd(const char *filename,
+ const char *username,
+ const char *data,
+ const char *member) FAST_FUNC;
int index_in_str_array(const char *const string_array[], const char *key) FAST_FUNC;
int index_in_strings(const char *strings, const char *key) FAST_FUNC;