database/mariadb-connector-c
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followup for e2df6d2: default directories, files, and groups

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* do not read ini_exts array beyond the end
* do not use local variable (val) address outside of the variable's scope
* do not read $HOME/my.cnf
* do not create files in the user's $HOME, use $MYSQL_TMP_DIR
* test reading of the executable name group
* fail the test if .my.cnf cannot be opened
This commit is contained in:
Sergei Golubchik
2017-07-04 11:42:05 +02:00
parent ea8a31e63a
commit 67277fb1d1
3 changed files with 41 additions and 48 deletions
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9
libmariadb/ma_default.c
View File

@@ -118,11 +118,6 @@ char **get_default_configuration_dirs()
if ((env= getenv("MYSQL_HOME")) &&
add_cfg_dir(configuration_dirs, env))
goto error;
#ifndef _WIN32
if ((env= getenv("HOME")) &&
add_cfg_dir(configuration_dirs, env))
goto error;
#endif
end:
return configuration_dirs;
error:
@@ -304,7 +299,7 @@ my_bool _mariadb_read_options(MYSQL *mysql,
for (i=0; i < MAX_CONFIG_DIRS && configuration_dirs[i]; i++)
{
for (exts= 0; exts < 2; exts++)
for (exts= 0; ini_exts[exts]; exts++)
{
snprintf(filename, FN_REFLEN,
"%s%cmy.%s", configuration_dirs[i], FN_LIBCHAR, ini_exts[exts]);
@@ -316,7 +311,7 @@ my_bool _mariadb_read_options(MYSQL *mysql,
/* special case: .my.cnf in Home directory */
if ((env= getenv("HOME")))
{
for (exts= 0; exts < 2; exts++)
for (exts= 0; ini_exts[exts]; exts++)
{
snprintf(filename, FN_REFLEN,
"%s%c.my.%s", env, FN_LIBCHAR, ini_exts[exts]);

32
libmariadb/mariadb_lib.c
View File

@@ -701,35 +701,35 @@ my_bool _mariadb_set_conf_option(MYSQL *mysql, const char *config_option, const
{
if (!strcmp(mariadb_defaults[i].conf_key, config_option))
{
my_bool val_bool;
int val_int;
size_t val_sizet;
int rc;
void *option_val= NULL;
switch (mariadb_defaults[i].type) {
case MARIADB_OPTION_BOOL:
{
my_bool val= 0;
val_bool= 0;
if (config_value)
val= atoi(config_value);
option_val= &val;
val_bool= atoi(config_value);
option_val= &val_bool;
break;
}
case MARIADB_OPTION_INT:
{
int val= 0;
val_int= 0;
if (config_value)
val= atoi(config_value);
option_val= &val;
val_int= atoi(config_value);
option_val= &val_int;
break;
}
case MARIADB_OPTION_SIZET:
{
size_t val= 0;
val_sizet= 0;
if (config_value)
val= strtol(config_value, NULL, 10);
option_val= &val;
val_sizet= strtol(config_value, NULL, 10);
option_val= &val_sizet;
break;
}
default:
case MARIADB_OPTION_STR:
option_val= (void*)config_value;
break;
case MARIADB_OPTION_NONE:
break;
}
rc= mysql_optionsv(mysql, mariadb_defaults[i].option, option_val);
return(test(rc));

34
unittest/libmariadb/misc.c
View File

@@ -1060,34 +1060,32 @@ static int test_mdev12965(MYSQL *unused __attribute__((unused)))
MYSQL *mysql;
my_bool reconnect = 0;
FILE *fp= NULL;
char *env= getenv("HOME");
char cnf_file1[FN_REFLEN + 1],
cnf_file2[FN_REFLEN + 1];
const char *env= getenv("MYSQL_TMP_DIR");
char cnf_file1[FN_REFLEN + 1];
if (!env)
env= "/tmp";
setenv("HOME", env, 1);
snprintf(cnf_file1, FN_REFLEN, "%s%c.my.cnf", env, FN_LIBCHAR);
snprintf(cnf_file2, FN_REFLEN, "%s%cmy.cnf", env, FN_LIBCHAR);
if (!access(cnf_file1, R_OK) || !access(cnf_file2, R_OK))
{
diag("Skip this test, it would overwrite configuration files in your home directory");
return SKIP;
}
diag("Config file: %s", cnf_file1);
FAIL_IF(!access(cnf_file1, R_OK), "access");
mysql= mysql_init(NULL);
fp= fopen(cnf_file1, "w");
fprintf(fp, "[test]\ndefault-character-set=latin2");
FAIL_IF(!fp, "fopen");
fprintf(fp, "[misc]\ndefault-character-set=latin2\n[client]\nreconnect=1\n");
fclose(fp);
fp= fopen(cnf_file2, "w");
fprintf(fp, "[test]\nreconnect=1");
fclose(fp);
mysql_options(mysql, MYSQL_READ_DEFAULT_GROUP, "test");
my_test_connect(mysql, hostname, username, password, schema,
0, socketname, 0), mysql_error(mysql);
mysql_options(mysql, MYSQL_READ_DEFAULT_GROUP, NULL);
my_test_connect(mysql, hostname, username, password,
schema, 0, socketname, 0);
remove(cnf_file1);
remove(cnf_file2);
FAIL_IF(strcmp(mysql_character_set_name(mysql), "latin2"), "expected charset latin2");
mysql_get_optionv(mysql, MYSQL_OPT_RECONNECT, &reconnect);