Hi, Rucha! On Nov 04, Rucha Deodhar wrote:

revision-id: 80749146b7d (mariadb-10.6.1-77-g80749146b7d) parent(s): 76149650764 author: Rucha Deodhar committer: Rucha Deodhar timestamp: 2021-09-12 02:11:19 +0530 message:

MDEV-26238: Remove inconsistent behaviour of --default-* options in my_print_defaults

Analysis: --defaults* option is recognized anywhere in the commandline instead of only at the beginning because handle_options() recognizes options in any order. Fix: use get_defaults_options() which recognizes --defaults* options only at the beginning. After this is done, we only want to recognize other options given in any order which can be done using handle_options(). So only skip --defaults* options and pass rest of them to handle_options(). Also, removed -e, -g and -c because only my_print_defaults supports them.

diff --git a/extra/my_print_defaults.c b/extra/my_print_defaults.c index b7f52382721..607509a309e 100644 --- a/extra/my_print_defaults.c +++ b/extra/my_print_defaults.c @@ -141,50 +124,39 @@ static int get_options(int *argc,char ***argv) ... int main(int argc, char **argv) { - int count= 0, error, no_defaults= 0; + int count, error, args_used; char **load_default_groups= 0, *tmp_arguments[6]; char **argument, **arguments, **org_argv; int nargs, i= 0; MY_INIT(argv[0]);

org_argv= argv; - if (*argv && !strcmp(*argv, "--no-defaults")) - { - argv++; - ++count; - no_defaults= 1; - } - /* Copy program name and --no-defaults if present*/ + args_used= get_defaults_options(argv); + + /* Copy defaults-xxx arguments & program name */ + count= args_used; arguments= tmp_arguments; - memcpy((char*) arguments, (char*) org_argv, (++count)*sizeof(*org_argv)); + memcpy((char*) arguments, (char*) org_argv, count*sizeof(*org_argv)); arguments[count]= 0;

I still cannot understand why you're doing it. Why do you need a copy of argv?

+ /* + We already process --defaults* options at the beginning in + get_defaults_options(). So skip --defaults* options and + pass remaining options to handle_options(). + */ + if (is_prefix(org_argv[1], "--no-defaults")) + args_used--;

I'm sorry, I don't understand. Why do you need that? all *defaults* options were handled in get_defaults_options().

+

why do you need org_argv? First you do org_argv= argv; then after some code that doesn't change either argv or org_argv, you copy the vallue back:

+ argv=org_argv; + argv+=args_used-1; + argc-=args_used-1; + /* Check out the args */ if (get_options(&argc,&argv)) cleanup_and_exit(1);

- if (!no_defaults) - { - if (opt_defaults_file_used) - arguments[count++]= make_args("--defaults-file=", config_file); - if (my_defaults_extra_file) - arguments[count++]= make_args("--defaults-extra-file=", - my_defaults_extra_file); - if (my_defaults_group_suffix) - arguments[count++]= make_args("--defaults-group-suffix=", - my_defaults_group_suffix); - arguments[count]= 0; - } - nargs= argc + 1; if (opt_mysqld) nargs+= array_elements(mysqld_groups);

Regards, Sergei VP of MariaDB Server Engineering and security@mariadb.org