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Fix incorrect casts in my_getopt code that capped the maximum of longlong

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options to the wrong value. (Bug #12925)
This commit is contained in:
jimw@mysql.com 2005-10-25 10:10:53 -07:00
parent ab2caf6de8
commit e8eed35c6a
3 changed files with 24 additions and 5 deletions
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4
mysql-test/t/mysql_client_test.test
View File

@ -6,7 +6,7 @@
# var/log/mysql_client_test.trace
--disable_result_log
--exec echo $MYSQL_CLIENT_TEST
--exec $MYSQL_CLIENT_TEST
--exec echo $MYSQL_CLIENT_TEST --getopt-ll-test=25600M
--exec $MYSQL_CLIENT_TEST --getopt-ll-test=25600M
# End of 4.1 tests

6
mysys/my_getopt.c
View File

@ -689,10 +689,10 @@ static longlong getopt_ll(char *arg, const struct my_option *optp, int *err)
ulonglong block_size= (optp->block_size ? (ulonglong) optp->block_size : 1L);
num= eval_num_suffix(arg, err, (char*) optp->name);
if (num > 0 && (ulonglong) num > (ulonglong) (ulong) optp->max_value &&
if (num > 0 && (ulonglong) num > (ulonglong) optp->max_value &&
optp->max_value) /* if max value is not set -> no upper limit */
num= (longlong) (ulong) optp->max_value;
num= ((num - (longlong) optp->sub_size) / block_size);
num= (ulonglong) optp->max_value;
num= ((num - optp->sub_size) / block_size);
num= (longlong) (num * block_size);
return max(num, optp->min_value);
}

19
tests/mysql_client_test.c
View File

@ -51,6 +51,8 @@ static unsigned int iter_count= 0;
static const char *opt_basedir= "./";
static longlong opt_getopt_ll_test= 0;
static int embedded_server_arg_count= 0;
static char *embedded_server_args[MAX_SERVER_ARGS];
@ -11830,6 +11832,19 @@ static void test_bug11718()
rc= mysql_query(mysql, "drop table t1, t2");
myquery(rc);
}
/*
Bug #12925: Bad handling of maximum values in getopt
*/
static void test_bug12925()
{
myheader("test_bug12925");
if (opt_getopt_ll_test)
DIE_UNLESS(opt_getopt_ll_test == LL(25600*1024*1024));
}
/*
Read and parse arguments and MySQL options from my.cnf
*/
@ -11872,6 +11887,9 @@ static struct my_option client_test_long_options[] =
{"user", 'u', "User for login if not current user", (char **) &opt_user,
(char **) &opt_user, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#endif
{"getopt-ll-test", 'g', "Option for testing bug in getopt library",
(char **) &opt_getopt_ll_test, (char **) &opt_getopt_ll_test, 0,
GET_LL, REQUIRED_ARG, 0, 0, LONGLONG_MAX, 0, 0, 0},
{ 0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
};
@ -12048,6 +12066,7 @@ static struct my_tests_st my_tests[]= {
{ "test_bug11183", test_bug11183 },
{ "test_bug12001", test_bug12001 },
{ "test_bug11718", test_bug11718 },
{ "test_bug12925", test_bug12925 },
{ 0, 0 }
};