cleanup: sql_acl.cc remove username=NULL
Some parts of sql_acl.cc historically assumed that empty username is represented by username=NULL, other parts used username="" for that. And most of the code wasn't sure and checked both (like in `if (!user || !user[0])`). Change it to use an empty string everywhere.
This commit is contained in:
Sergei Golubchik
parent
3476854013
commit
dd78430548
135
sql/sql_acl.cc
135
sql/sql_acl.cc
@ -169,7 +169,7 @@ public:
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{
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CHARSET_INFO *cs= system_charset_info;
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int res;
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res= strcmp(safe_str(user.str), safe_str(user2));
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res= strcmp(user.str, user2);
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if (!res)
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res= my_strcasecmp(cs, host.hostname, host2);
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return res;
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@ -179,7 +179,7 @@ public:
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bool wild_eq(const char *user2, const char *host2, const char *ip2)
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{
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if (strcmp(safe_str(user.str), safe_str(user2)))
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if (strcmp(user.str, user2))
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return false;
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return compare_hostname(&host, host2, ip2 ? ip2 : host2);
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@ -270,10 +270,9 @@ public:
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const char *proxied_host_arg, const char *proxied_user_arg,
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bool with_grant_arg)
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{
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user= (user_arg && *user_arg) ? user_arg : NULL;
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user= user_arg;
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update_hostname (&host, (host_arg && *host_arg) ? host_arg : NULL);
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proxied_user= (proxied_user_arg && *proxied_user_arg) ?
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proxied_user_arg : NULL;
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proxied_user= proxied_user_arg;
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update_hostname (&proxied_host,
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(proxied_host_arg && *proxied_host_arg) ?
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proxied_host_arg : NULL);
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@ -286,11 +285,10 @@ public:
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bool with_grant_arg)
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{
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init ((host_arg && *host_arg) ? strdup_root (mem, host_arg) : NULL,
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(user_arg && *user_arg) ? strdup_root (mem, user_arg) : NULL,
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strdup_root (mem, user_arg),
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(proxied_host_arg && *proxied_host_arg) ?
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strdup_root (mem, proxied_host_arg) : NULL,
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(proxied_user_arg && *proxied_user_arg) ?
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strdup_root (mem, proxied_user_arg) : NULL,
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strdup_root (mem, proxied_user_arg),
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with_grant_arg);
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}
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@ -303,7 +301,7 @@ public:
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const char *get_proxied_host() { return proxied_host.hostname; }
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void set_user(MEM_ROOT *mem, const char *user_arg)
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{
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user= user_arg && *user_arg ? strdup_root(mem, user_arg) : NULL;
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user= *user_arg ? strdup_root(mem, user_arg) : "";
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}
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void set_host(MEM_ROOT *mem, const char *host_arg)
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{
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@ -318,9 +316,8 @@ public:
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{
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sql_print_warning("'proxies_priv' entry '%s@%s %s@%s' "
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"ignored in --skip-name-resolve mode.",
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safe_str(proxied_user),
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safe_str(proxied_host.hostname),
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safe_str(user),
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proxied_user,
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safe_str(proxied_host.hostname), user,
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safe_str(host.hostname));
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return TRUE;
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}
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@ -340,11 +337,10 @@ public:
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proxied_user_arg, proxied_user));
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DBUG_RETURN(compare_hostname(&host, host_arg, ip_arg) &&
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compare_hostname(&proxied_host, host_arg, ip_arg) &&
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(!user ||
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(!*user ||
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(user_arg && !wild_compare(user_arg, user, TRUE))) &&
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(!proxied_user ||
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(proxied_user && !wild_compare(proxied_user_arg,
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proxied_user, TRUE))));
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(!*proxied_user ||
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!wild_compare(proxied_user_arg, proxied_user, TRUE)));
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}
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@ -376,8 +372,7 @@ public:
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bool granted_on(const char *host_arg, const char *user_arg)
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{
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return (((!user && (!user_arg || !user_arg[0])) ||
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(user && user_arg && !strcmp(user, user_arg))) &&
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return (!strcmp(user, user_arg) &&
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((!host.hostname && (!host_arg || !host_arg[0])) ||
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(host.hostname && host_arg && !strcmp(host.hostname, host_arg))));
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}
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@ -386,17 +381,15 @@ public:
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void print_grant(String *str)
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{
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str->append(STRING_WITH_LEN("GRANT PROXY ON '"));
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if (proxied_user)
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str->append(proxied_user, strlen(proxied_user));
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str->append(proxied_user);
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str->append(STRING_WITH_LEN("'@'"));
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if (proxied_host.hostname)
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str->append(proxied_host.hostname, strlen(proxied_host.hostname));
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str->append(STRING_WITH_LEN("' TO '"));
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if (user)
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str->append(user, strlen(user));
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str->append(user);
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str->append(STRING_WITH_LEN("'@'"));
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if (host.hostname)
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str->append(host.hostname, strlen(host.hostname));
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str->append(host.hostname);
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str->append(STRING_WITH_LEN("'"));
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if (with_grant)
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str->append(STRING_WITH_LEN(" WITH GRANT OPTION"));
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@ -1301,9 +1294,9 @@ void ACL_PROXY_USER::init(const Proxies_priv_table& proxies_priv_table,
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MEM_ROOT *mem)
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{
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init(get_field(mem, proxies_priv_table.host()),
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get_field(mem, proxies_priv_table.user()),
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safe_str(get_field(mem, proxies_priv_table.user())),
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get_field(mem, proxies_priv_table.proxied_host()),
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get_field(mem, proxies_priv_table.proxied_user()),
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safe_str(get_field(mem, proxies_priv_table.proxied_user())),
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proxies_priv_table.with_grant()->val_int() != 0);
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}
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@ -1666,7 +1659,7 @@ static bool set_user_plugin (ACL_USER *user, size_t password_len)
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return FALSE;
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default:
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sql_print_warning("Found invalid password for user: '%s@%s'; "
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"Ignoring user", safe_str(user->user.str),
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"Ignoring user", user->user.str,
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safe_str(user->host.hostname));
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return TRUE;
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}
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@ -1817,9 +1810,9 @@ static bool acl_load(THD *thd, const Grant_tables& tables)
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bool is_role= FALSE;
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bzero(&user, sizeof(user));
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update_hostname(&user.host, get_field(&acl_memroot, user_table.host()));
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char *username= get_field(&acl_memroot, user_table.user());
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char *username= safe_str(get_field(&acl_memroot, user_table.user()));
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user.user.str= username;
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user.user.length= safe_strlen(username);
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user.user.length= strlen(username);
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/*
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If the user entry is a role, skip password and hostname checks
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@ -1837,8 +1830,7 @@ static bool acl_load(THD *thd, const Grant_tables& tables)
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hostname_requires_resolving(user.host.hostname))
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{
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sql_print_warning("'user' entry '%s@%s' "
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"ignored in --skip-name-resolve mode.",
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safe_str(user.user.str),
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"ignored in --skip-name-resolve mode.", user.user.str,
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safe_str(user.host.hostname));
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continue;
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}
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@ -1954,8 +1946,7 @@ static bool acl_load(THD *thd, const Grant_tables& tables)
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sql_print_warning("'user' entry '%s@%s' has both a password "
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"and an authentication plugin specified. The "
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"password will be ignored.",
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safe_str(user.user.str),
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safe_str(user.host.hostname));
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user.user.str, safe_str(user.host.hostname));
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}
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else
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user.auth_string= password;
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@ -2034,7 +2025,7 @@ static bool acl_load(THD *thd, const Grant_tables& tables)
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{
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ACL_DB db;
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char *db_name;
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db.user=get_field(&acl_memroot, db_table.user());
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db.user=safe_str(get_field(&acl_memroot, db_table.user()));
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const char *hostname= get_field(&acl_memroot, db_table.host());
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if (!hostname && find_acl_role(db.user))
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hostname= "";
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@ -2049,7 +2040,7 @@ static bool acl_load(THD *thd, const Grant_tables& tables)
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{
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sql_print_warning("'db' entry '%s %s@%s' "
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"ignored in --skip-name-resolve mode.",
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db.db, safe_str(db.user), safe_str(db.host.hostname));
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db.db, db.user, safe_str(db.host.hostname));
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continue;
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}
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db.access= db_table.get_access();
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@ -2074,7 +2065,7 @@ static bool acl_load(THD *thd, const Grant_tables& tables)
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"case that has been forced to lowercase because "
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"lower_case_table_names is set. It will not be "
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"possible to remove this privilege using REVOKE.",
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db.db, safe_str(db.user), safe_str(db.host.hostname));
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db.db, db.user, safe_str(db.host.hostname));
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}
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}
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db.sort=get_sort(3,db.host.hostname,db.db,db.user);
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@ -2402,7 +2393,7 @@ bool acl_getroot(Security_context *sctx, const char *user, const char *host,
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DBUG_PRINT("enter", ("Host: '%s', Ip: '%s', User: '%s', db: '%s'",
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host, ip, user, db));
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sctx->user= user;
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sctx->user= *user ? user : NULL;
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sctx->host= host;
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sctx->ip= ip;
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sctx->host_or_ip= host ? host : (safe_str(ip));
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@ -2432,8 +2423,7 @@ bool acl_getroot(Security_context *sctx, const char *user, const char *host,
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for (i=0 ; i < acl_dbs.elements ; i++)
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{
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ACL_DB *acl_db= dynamic_element(&acl_dbs, i, ACL_DB*);
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if (!acl_db->user ||
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(user && user[0] && !strcmp(user, acl_db->user)))
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if (!*acl_db->user || !strcmp(user, acl_db->user))
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{
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if (compare_hostname(&acl_db->host, host, ip))
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{
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@ -2447,8 +2437,7 @@ bool acl_getroot(Security_context *sctx, const char *user, const char *host,
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}
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sctx->master_access= acl_user->access;
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if (acl_user->user.str)
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strmake_buf(sctx->priv_user, user);
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strmake_buf(sctx->priv_user, user);
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if (acl_user->host.hostname)
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strmake_buf(sctx->priv_host, acl_user->host.hostname);
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@ -2463,8 +2452,7 @@ bool acl_getroot(Security_context *sctx, const char *user, const char *host,
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for (i=0 ; i < acl_dbs.elements ; i++)
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{
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ACL_DB *acl_db= dynamic_element(&acl_dbs, i, ACL_DB*);
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if (!acl_db->user ||
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(user && user[0] && !strcmp(user, acl_db->user)))
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if (!*acl_db->user || !strcmp(user, acl_db->user))
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{
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if (compare_hostname(&acl_db->host, "", ""))
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{
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@ -2478,8 +2466,7 @@ bool acl_getroot(Security_context *sctx, const char *user, const char *host,
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}
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sctx->master_access= acl_role->access;
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if (acl_role->user.str)
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strmake_buf(sctx->priv_role, user);
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strmake_buf(sctx->priv_role, user);
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}
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}
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@ -2682,8 +2669,6 @@ static void acl_insert_user(const LEX_USER &combo, enum SSL_type ssl_type,
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bzero(&acl_user, sizeof(acl_user));
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acl_user.user= safe_lexcstrdup_root(&acl_memroot, combo.user);
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if (!acl_user.user.length)
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acl_user.user.str= NULL; // the rest of the code expects that XXX
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update_hostname(&acl_user.host, safe_strdup_root(&acl_memroot, combo.host.str));
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if (combo.plugin.str[0])
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{
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@ -2740,13 +2725,10 @@ static bool acl_update_db(const char *user, const char *host, const char *db,
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for (uint i=0 ; i < acl_dbs.elements ; i++)
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{
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ACL_DB *acl_db=dynamic_element(&acl_dbs,i,ACL_DB*);
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if ((!acl_db->user && !user[0]) ||
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(acl_db->user &&
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!strcmp(user,acl_db->user)))
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if (!strcmp(user, acl_db->user))
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{
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if ((!acl_db->host.hostname && !host[0]) ||
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(acl_db->host.hostname &&
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!strcmp(host, acl_db->host.hostname)))
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(acl_db->host.hostname && !strcmp(host, acl_db->host.hostname)))
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{
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if ((!acl_db->db && !db[0]) ||
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(acl_db->db && !strcmp(db,acl_db->db)))
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@ -2844,7 +2826,7 @@ ulong acl_get(const char *host, const char *ip,
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for (i=0 ; i < acl_dbs.elements ; i++)
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{
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ACL_DB *acl_db=dynamic_element(&acl_dbs,i,ACL_DB*);
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if (!acl_db->user || !strcmp(user,acl_db->user))
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if (!*acl_db->user || !strcmp(user, acl_db->user))
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{
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if (compare_hostname(&acl_db->host,host,ip))
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{
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@ -3248,7 +3230,7 @@ bool change_password(THD *thd, LEX_USER *user)
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(WSREP(thd) && !IF_WSREP(thd->wsrep_applier, 0)))
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{
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query_length= sprintf(buff, "SET PASSWORD FOR '%-.120s'@'%-.120s'='%-.120s'",
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safe_str(user->user.str), safe_str(user->host.str),
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user->user.str, safe_str(user->host.str),
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safe_str(user->pwhash.str));
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}
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@ -3289,7 +3271,7 @@ bool change_password(THD *thd, LEX_USER *user)
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if (update_user_table(thd, tables.user_table(),
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safe_str(acl_user->host.hostname),
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safe_str(acl_user->user.str), user->pwhash))
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acl_user->user.str, user->pwhash))
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{
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mysql_mutex_unlock(&acl_cache->lock); /* purecov: deadcode */
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goto end;
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@ -3338,13 +3320,12 @@ int acl_set_default_role(THD *thd, const char *host, const char *user,
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ulong query_length= 0;
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bool clear_role= FALSE;
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char buff[512];
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enum_binlog_format save_binlog_format=
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thd->get_current_stmt_binlog_format();
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enum_binlog_format save_binlog_format= thd->get_current_stmt_binlog_format();
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const CSET_STRING query_save __attribute__((unused)) = thd->query_string;
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DBUG_ENTER("acl_set_default_role");
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DBUG_PRINT("enter",("host: '%s' user: '%s' rolename: '%s'",
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safe_str(user), safe_str(host), safe_str(rolename)));
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user, safe_str(host), safe_str(rolename)));
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if (rolename == current_role.str) {
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if (!thd->security_ctx->priv_role[0])
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@ -3364,7 +3345,7 @@ int acl_set_default_role(THD *thd, const char *host, const char *user,
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{
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query_length=
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sprintf(buff,"SET DEFAULT ROLE '%-.120s' FOR '%-.120s'@'%-.120s'",
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safe_str(rolename), safe_str(user), safe_str(host));
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safe_str(rolename), user, safe_str(host));
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}
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/*
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@ -3533,7 +3514,7 @@ static ACL_USER *find_user_or_anon(const char *host, const char *user, const cha
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for (uint i=0; i < acl_users.elements; i++)
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{
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ACL_USER *acl_user_tmp= dynamic_element(&acl_users, i, ACL_USER*);
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if ((!acl_user_tmp->user.str ||
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if ((!acl_user_tmp->user.length ||
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!strcmp(user, acl_user_tmp->user.str)) &&
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compare_hostname(&acl_user_tmp->host, host, ip))
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{
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@ -3589,7 +3570,7 @@ static ACL_ROLE *find_acl_role(const char *role)
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mysql_mutex_assert_owner(&acl_cache->lock);
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ACL_ROLE *r= (ACL_ROLE *)my_hash_search(&acl_roles, (uchar *)role,
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safe_strlen(role));
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strlen(role));
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DBUG_RETURN(r);
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}
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@ -7223,8 +7204,7 @@ static bool grant_load(THD *thd,
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{
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sql_print_warning("'tables_priv' entry '%s %s@%s' "
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"ignored in --skip-name-resolve mode.",
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mem_check->tname,
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safe_str(mem_check->user),
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mem_check->tname, mem_check->user,
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safe_str(mem_check->host.hostname));
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continue;
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}
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@ -8829,7 +8809,7 @@ static bool show_database_privileges(THD *thd, const char *username,
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const char *user, *host;
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acl_db=dynamic_element(&acl_dbs,counter,ACL_DB*);
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user= safe_str(acl_db->user);
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user= acl_db->user;
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host=acl_db->host.hostname;
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/*
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@ -8915,7 +8895,7 @@ static bool show_table_and_column_privileges(THD *thd, const char *username,
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GRANT_TABLE *grant_table= (GRANT_TABLE*)
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my_hash_element(&column_priv_hash, index);
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user= safe_str(grant_table->user);
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user= grant_table->user;
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host= grant_table->host.hostname;
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/*
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@ -9057,7 +9037,7 @@ static int show_routine_grants(THD* thd,
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const char *user, *host;
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GRANT_NAME *grant_proc= (GRANT_NAME*) my_hash_element(hash, index);
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user= safe_str(grant_proc->user);
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user= grant_proc->user;
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host= grant_proc->host.hostname;
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/*
|
||||
@ -9665,8 +9645,6 @@ static int handle_grant_struct(enum enum_acl_lists struct_no, bool drop,
|
||||
default:
|
||||
DBUG_ASSERT(0);
|
||||
}
|
||||
if (! user)
|
||||
user= "";
|
||||
if (! host)
|
||||
host= "";
|
||||
|
||||
@ -10533,7 +10511,7 @@ mysql_revoke_sp_privs(THD *thd,
|
||||
{
|
||||
const char *user,*host;
|
||||
GRANT_NAME *grant_proc= (GRANT_NAME*) my_hash_element(hash, counter);
|
||||
user= safe_str(grant_proc->user);
|
||||
user= grant_proc->user;
|
||||
host= safe_str(grant_proc->host.hostname);
|
||||
|
||||
if (!strcmp(lex_user->user.str, user) &&
|
||||
@ -10629,7 +10607,7 @@ bool mysql_revoke_all(THD *thd, List <LEX_USER> &list)
|
||||
|
||||
acl_db=dynamic_element(&acl_dbs,counter,ACL_DB*);
|
||||
|
||||
user= safe_str(acl_db->user);
|
||||
user= acl_db->user;
|
||||
host= safe_str(acl_db->host.hostname);
|
||||
|
||||
if (!strcmp(lex_user->user.str, user) &&
|
||||
@ -10661,7 +10639,7 @@ bool mysql_revoke_all(THD *thd, List <LEX_USER> &list)
|
||||
const char *user,*host;
|
||||
GRANT_TABLE *grant_table=
|
||||
(GRANT_TABLE*) my_hash_element(&column_priv_hash, counter);
|
||||
user= safe_str(grant_table->user);
|
||||
user= grant_table->user;
|
||||
host= safe_str(grant_table->host.hostname);
|
||||
|
||||
if (!strcmp(lex_user->user.str,user) &&
|
||||
@ -11445,7 +11423,7 @@ int fill_schema_user_privileges(THD *thd, TABLE_LIST *tables, COND *cond)
|
||||
{
|
||||
const char *user,*host, *is_grantable="YES";
|
||||
acl_user=dynamic_element(&acl_users,counter,ACL_USER*);
|
||||
user= safe_str(acl_user->user.str);
|
||||
user= acl_user->user.str;
|
||||
host= safe_str(acl_user->host.hostname);
|
||||
|
||||
if (no_global_access &&
|
||||
@ -11519,7 +11497,7 @@ int fill_schema_schema_privileges(THD *thd, TABLE_LIST *tables, COND *cond)
|
||||
const char *user, *host, *is_grantable="YES";
|
||||
|
||||
acl_db=dynamic_element(&acl_dbs,counter,ACL_DB*);
|
||||
user= safe_str(acl_db->user);
|
||||
user= acl_db->user;
|
||||
host= safe_str(acl_db->host.hostname);
|
||||
|
||||
if (no_global_access &&
|
||||
@ -11591,7 +11569,7 @@ int fill_schema_table_privileges(THD *thd, TABLE_LIST *tables, COND *cond)
|
||||
const char *user, *host, *is_grantable= "YES";
|
||||
GRANT_TABLE *grant_table= (GRANT_TABLE*) my_hash_element(&column_priv_hash,
|
||||
index);
|
||||
user= safe_str(grant_table->user);
|
||||
user= grant_table->user;
|
||||
host= safe_str(grant_table->host.hostname);
|
||||
|
||||
if (no_global_access &&
|
||||
@ -11673,7 +11651,7 @@ int fill_schema_column_privileges(THD *thd, TABLE_LIST *tables, COND *cond)
|
||||
const char *user, *host, *is_grantable= "YES";
|
||||
GRANT_TABLE *grant_table= (GRANT_TABLE*) my_hash_element(&column_priv_hash,
|
||||
index);
|
||||
user= safe_str(grant_table->user);
|
||||
user= grant_table->user;
|
||||
host= safe_str(grant_table->host.hostname);
|
||||
|
||||
if (no_global_access &&
|
||||
@ -12364,7 +12342,7 @@ static bool find_mpvio_user(MPVIO_EXT *mpvio)
|
||||
mpvio->auth_info.user_name_length= (uint)strlen(sctx->user);
|
||||
mpvio->auth_info.auth_string= mpvio->acl_user->auth_string.str;
|
||||
mpvio->auth_info.auth_string_length= (unsigned long) mpvio->acl_user->auth_string.length;
|
||||
strmake_buf(mpvio->auth_info.authenticated_as, safe_str(mpvio->acl_user->user.str));
|
||||
strmake_buf(mpvio->auth_info.authenticated_as, mpvio->acl_user->user.str);
|
||||
|
||||
DBUG_PRINT("info", ("exit: user=%s, auth_string=%s, authenticated as=%s"
|
||||
"plugin=%s",
|
||||
@ -13297,7 +13275,7 @@ bool acl_authenticate(THD *thd, uint com_change_user_pkt_len)
|
||||
{
|
||||
#ifndef NO_EMBEDDED_ACCESS_CHECKS
|
||||
bool is_proxy_user= FALSE;
|
||||
const char *auth_user = safe_str(acl_user->user.str);
|
||||
const char *auth_user = acl_user->user.str;
|
||||
ACL_PROXY_USER *proxy_user;
|
||||
/* check if the user is allowed to proxy as another user */
|
||||
proxy_user= acl_find_proxy_user(auth_user, sctx->host, sctx->ip,
|
||||
@ -13343,10 +13321,7 @@ bool acl_authenticate(THD *thd, uint com_change_user_pkt_len)
|
||||
#endif
|
||||
|
||||
sctx->master_access= acl_user->access;
|
||||
if (acl_user->user.str)
|
||||
strmake_buf(sctx->priv_user, acl_user->user.str);
|
||||
else
|
||||
*sctx->priv_user= 0;
|
||||
strmake_buf(sctx->priv_user, acl_user->user.str);
|
||||
|
||||
if (acl_user->host.hostname)
|
||||
strmake_buf(sctx->priv_host, acl_user->host.hostname);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user