/** Destroy a DSNINFO struct, freeing all memory associated with it */
static void
free_dsninfo(DSNINFO * di)
{ /* the DSNINFO struct to be freed */
tds_free_login(di->login);
tds_dstr_free(&di->origdsn);
tds_dstr_free(&di->dsn);
free(di);
}
static int
tds_read_conf_sections(FILE * in, const char *server, TDSLOGIN * login)
{
DSTR default_instance;
int default_port;
int found;
tds_read_conf_section(in, "global", tds_parse_conf_section, login);
if (!server[0])
return 0;
rewind(in);
tds_dstr_init(&default_instance);
tds_dstr_dup(&default_instance, &login->instance_name);
default_port = login->port;
found = tds_read_conf_section(in, server, tds_parse_conf_section, login);
/*
* If both instance and port are specified and neither one came from the default, it's an error
* TODO: If port/instance is specified in the non-default, it has priority over the default setting.
* TODO: test this.
*/
if (!tds_dstr_isempty(&login->instance_name) && login->port &&
!(!tds_dstr_isempty(&default_instance) || default_port)) {
tdsdump_log(TDS_DBG_ERROR, "error: cannot specify both port %d and instance %s.\n",
login->port, tds_dstr_cstr(&login->instance_name));
/* tdserror(tds_get_ctx(tds), tds, TDSEPORTINSTANCE, 0); */
}
tds_dstr_free(&default_instance);
return found;
}
/**
* Parse connection string and fill connect_info according
* @param connect_string connect string
* @param connect_string_end connect string end (pointer to char past last)
* @param connect_info where to store connection info
* @return 1 if success 0 otherwhise
*/
int
odbc_parse_connect_string(const char *connect_string, const char *connect_string_end, TDSCONNECTINFO * connect_info)
{
const char *p, *end;
DSTR *dest_s, value;
int reparse = 0; /* flag for indicate second parse of string */
char option[16];
char tmp[256];
tds_dstr_init(&value);
for (p = connect_string; p && *p;) {
dest_s = NULL;
/* parse option */
end = (const char *) memchr(p, '=', connect_string_end - p);
if (!end)
break;
/* account for spaces between ;'s. */
while (p < end && *p == ' ')
++p;
if ((end - p) >= (int) sizeof(option))
option[0] = 0;
else {
memcpy(option, p, end - p);
option[end - p] = 0;
}
/* parse value */
p = end + 1;
if (*p == '{') {
++p;
/* search "};" */
end = p;
while ((end = (const char *) memchr(end, '}', connect_string_end - end)) != NULL) {
if ((end + 1) != connect_string_end && end[1] == ';')
break;
++end;
}
} else {
end = (const char *) memchr(p, ';', connect_string_end - p);
}
if (!end)
end = connect_string_end;
if (!tds_dstr_copyn(&value, p, end - p))
return 0;
if (strcasecmp(option, "SERVER") == 0) {
/* ignore if servername specified */
if (!reparse) {
dest_s = &connect_info->server_name;
tds_lookup_host(tds_dstr_cstr(&value), tmp);
if (!tds_dstr_copy(&connect_info->ip_addr, tmp)) {
tds_dstr_free(&value);
return 0;
}
}
} else if (strcasecmp(option, "SERVERNAME") == 0) {
if (!reparse) {
tds_read_conf_file(connect_info, tds_dstr_cstr(&value));
reparse = 1;
p = connect_string;
continue;
}
} else if (strcasecmp(option, "DSN") == 0) {
if (!reparse) {
odbc_get_dsn_info(tds_dstr_cstr(&value), connect_info);
reparse = 1;
p = connect_string;
continue;
}
} else if (strcasecmp(option, "DATABASE") == 0) {
dest_s = &connect_info->database;
} else if (strcasecmp(option, "UID") == 0) {
dest_s = &connect_info->user_name;
} else if (strcasecmp(option, "PWD") == 0) {
dest_s = &connect_info->password;
} else if (strcasecmp(option, "APP") == 0) {
dest_s = &connect_info->app_name;
} else if (strcasecmp(option, "WSID") == 0) {
dest_s = &connect_info->host_name;
} else if (strcasecmp(option, "LANGUAGE") == 0) {
dest_s = &connect_info->language;
} else if (strcasecmp(option, "Port") == 0) {
connect_info->port = atoi(tds_dstr_cstr(&value));
} else if (strcasecmp(option, "TDS_Version") == 0) {
tds_config_verstr(tds_dstr_cstr(&value), connect_info);
} else if (strcasecmp(option, "Domain") == 0) {
dest_s = &connect_info->default_domain;
} else if (strcasecmp(option, "TextSize") == 0) {
connect_info->text_size = atoi(tds_dstr_cstr(&value));
} else if (strcasecmp(option, "PacketSize") == 0) {
connect_info->block_size = atoi(tds_dstr_cstr(&value));
/* TODO "Address" field */
}
/* copy to destination */
if (dest_s) {
tds_dstr_set(dest_s, tds_dstr_cstr(&value));
tds_dstr_init(&value);
}
p = end;
/* handle "" ";.." "};.." cases */
if (p >= connect_string_end)
break;
if (*p == '}')
++p;
++p;
}
tds_dstr_free(&value);
return p != NULL;
}
/**
* Parse connection string and fill login according
* @param connect_string connect string
* @param connect_string_end connect string end (pointer to char past last)
* @param login where to store connection info
* @return 1 if success 0 otherwhise
*/
int
odbc_parse_connect_string(TDS_ERRS *errs, const char *connect_string, const char *connect_string_end, TDSLOGIN * login,
TDS_PARSED_PARAM *parsed_params)
{
const char *p, *end;
DSTR *dest_s, value = DSTR_INITIALIZER;
enum { CFG_DSN = 1, CFG_SERVER = 2, CFG_SERVERNAME = 4 };
unsigned int cfgs = 0; /* flags for indicate second parse of string */
char option[24];
int trusted = 0;
if (parsed_params)
memset(parsed_params, 0, sizeof(*parsed_params)*ODBC_PARAM_SIZE);
for (p = connect_string; p < connect_string_end && *p;) {
int num_param = -1;
dest_s = NULL;
/* handle empty options */
while (p < connect_string_end && *p == ';')
++p;
/* parse option */
end = (const char *) memchr(p, '=', connect_string_end - p);
if (!end)
break;
/* account for spaces between ;'s. */
while (p < end && *p == ' ')
++p;
if ((end - p) >= (int) sizeof(option))
option[0] = 0;
else {
memcpy(option, p, end - p);
option[end - p] = 0;
}
/* parse value */
p = end + 1;
if (*p == '{') {
++p;
/* search "};" */
end = p;
while ((end = (const char *) memchr(end, '}', connect_string_end - end)) != NULL) {
if ((end + 1) != connect_string_end && end[1] == ';')
break;
++end;
}
} else {
end = (const char *) memchr(p, ';', connect_string_end - p);
}
if (!end)
end = connect_string_end;
if (!tds_dstr_copyn(&value, p, end - p)) {
odbc_errs_add(errs, "HY001", NULL);
return 0;
}
#define CHK_PARAM(p) (strcasecmp(option, odbc_param_##p) == 0 && (num_param=ODBC_PARAM_##p) >= 0)
if (CHK_PARAM(Server)) {
/* error if servername or DSN specified */
if ((cfgs & (CFG_DSN|CFG_SERVERNAME)) != 0) {
tds_dstr_free(&value);
odbc_errs_add(errs, "HY000", "Only one between SERVER, SERVERNAME and DSN can be specified");
return 0;
}
if (!cfgs) {
dest_s = &login->server_name;
/* not that safe cast but works -- freddy77 */
if (!parse_server(errs, (char *) tds_dstr_cstr(&value), login)) {
tds_dstr_free(&value);
return 0;
}
cfgs = CFG_SERVER;
}
} else if (CHK_PARAM(Servername)) {
if ((cfgs & (CFG_DSN|CFG_SERVER)) != 0) {
tds_dstr_free(&value);
odbc_errs_add(errs, "HY000", "Only one between SERVER, SERVERNAME and DSN can be specified");
return 0;
}
if (!cfgs) {
odbc_dstr_swap(&login->server_name, &value);
tds_read_conf_file(login, tds_dstr_cstr(&login->server_name));
cfgs = CFG_SERVERNAME;
p = connect_string;
continue;
}
} else if (CHK_PARAM(DSN)) {
if ((cfgs & (CFG_SERVER|CFG_SERVERNAME)) != 0) {
tds_dstr_free(&value);
odbc_errs_add(errs, "HY000", "Only one between SERVER, SERVERNAME and DSN can be specified");
return 0;
}
if (!cfgs) {
if (!odbc_get_dsn_info(errs, tds_dstr_cstr(&value), login)) {
tds_dstr_free(&value);
return 0;
}
cfgs = CFG_DSN;
p = connect_string;
continue;
}
} else if (CHK_PARAM(Database)) {
dest_s = &login->database;
} else if (CHK_PARAM(UID)) {
dest_s = &login->user_name;
} else if (CHK_PARAM(PWD)) {
dest_s = &login->password;
} else if (CHK_PARAM(APP)) {
dest_s = &login->app_name;
} else if (CHK_PARAM(WSID)) {
dest_s = &login->client_host_name;
} else if (CHK_PARAM(Language)) {
tds_parse_conf_section(TDS_STR_LANGUAGE, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(Port)) {
tds_parse_conf_section(TDS_STR_PORT, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(TDS_Version)) {
tds_parse_conf_section(TDS_STR_VERSION, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(TextSize)) {
tds_parse_conf_section(TDS_STR_TEXTSZ, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(PacketSize)) {
tds_parse_conf_section(TDS_STR_BLKSZ, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(ClientCharset)) {
tds_parse_conf_section(TDS_STR_CLCHARSET, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(DumpFile)) {
tds_parse_conf_section(TDS_STR_DUMPFILE, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(DumpFileAppend)) {
tds_parse_conf_section(TDS_STR_APPENDMODE, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(DebugFlags)) {
tds_parse_conf_section(TDS_STR_DEBUGFLAGS, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(Encryption)) {
tds_parse_conf_section(TDS_STR_ENCRYPTION, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(UseNTLMv2)) {
tds_parse_conf_section(TDS_STR_USENTLMV2, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(REALM)) {
tds_parse_conf_section(TDS_STR_REALM, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(ServerSPN)) {
tds_parse_conf_section(TDS_STR_SPN, tds_dstr_cstr(&value), login);
} else if (CHK_PARAM(Trusted_Connection)) {
trusted = tds_config_boolean(option, tds_dstr_cstr(&value), login);
tdsdump_log(TDS_DBG_INFO1, "trusted %s -> %d\n", tds_dstr_cstr(&value), trusted);
num_param = -1;
/* TODO odbc_param_Address field */
} else if (CHK_PARAM(MARS_Connection)) {
if (tds_config_boolean(option, tds_dstr_cstr(&value), login))
login->mars = 1;
} else if (CHK_PARAM(AttachDbFilename)) {
dest_s = &login->db_filename;
} else if (CHK_PARAM(ApplicationIntent)) {
const char *readonly_intent;
if (strcasecmp(tds_dstr_cstr(&value), "ReadOnly") == 0) {
readonly_intent = "yes";
} else if (strcasecmp(tds_dstr_cstr(&value), "ReadWrite") == 0) {
readonly_intent = "no";
} else {
tdsdump_log(TDS_DBG_ERROR, "Invalid ApplicationIntent %s\n", tds_dstr_cstr(&value));
return 0;
}
tds_parse_conf_section(TDS_STR_READONLY_INTENT, readonly_intent, login);
tdsdump_log(TDS_DBG_INFO1, "Application Intent %s\n", readonly_intent);
}
if (num_param >= 0 && parsed_params) {
parsed_params[num_param].p = p;
parsed_params[num_param].len = end - p;
}
/* copy to destination */
if (dest_s)
odbc_dstr_swap(dest_s, &value);
p = end;
/* handle "" ";.." "};.." cases */
if (p >= connect_string_end)
break;
if (*p == '}')
++p;
++p;
}
if (trusted) {
if (parsed_params) {
parsed_params[ODBC_PARAM_Trusted_Connection].p = "Yes";
parsed_params[ODBC_PARAM_Trusted_Connection].len = 3;
parsed_params[ODBC_PARAM_UID].p = NULL;
parsed_params[ODBC_PARAM_PWD].p = NULL;
}
tds_dstr_empty(&login->user_name);
tds_dstr_empty(&login->password);
}
tds_dstr_free(&value);
return 1;
}
