/*
* read initiator name from supplied filename
*/
int
isns_read_initiatorname(const char *filename)
{
FILE *fp;
char *name, *pos;
if ((fp = fopen(filename, "r")) == NULL) {
perror(filename);
return -1;
}
while ((pos = parser_get_next_line(fp)) != NULL) {
pos[strcspn(pos, "#")] = '\0';
if (!(name = parser_get_next_word(&pos)))
continue;
if (strcmp(name, "InitiatorName"))
continue;
if (pos[0] == '=')
pos++;
if (!strncmp(pos, "iqn.", 4))
isns_assign_string(&isns_config.ic_source_name, pos);
}
fclose(fp);
return 0;
}
/*
* Read the registry file, match each entry against the given owner=<foo> tag,
* and invoke the callback function.
* This is used for both reading the registry, and rewriting it.
*/
static int
__isns_local_registry_read(const char *match_owner,
__isns_local_registry_cb_fn_t handle_matching,
__isns_local_registry_cb_fn_t handle_nonmatching,
void *user_data)
{
const char *filename = isns_config.ic_local_registry_file;
char *line, *copy = NULL;
FILE *fp;
int rv = 0, owner_len;
if (!(fp = fopen(filename, "r"))) {
if (errno == ENOENT) {
isns_debug_state("Unable to open %s: %m\n", filename);
return 1;
}
isns_error("Unable to open %s: %m\n", filename);
return 0;
}
owner_len = match_owner? strlen(match_owner) : 0;
while ((line = parser_get_next_line(fp)) != NULL) {
__isns_local_registry_cb_fn_t *cb;
char *argv[256], *owner;
int argc = 0;
isns_assign_string(©, line);
argc = isns_attr_list_split(line, argv, 255);
if (argc <= 0)
continue;
/* Last attr should be owner */
if (strncasecmp(argv[argc-1], "owner=", 6)) {
isns_error("%s: syntax error (missing owner field)\n",
filename);
goto out;
}
owner = argv[argc-1] + 6;
if (!strncasecmp(owner, match_owner, owner_len)
&& (owner[owner_len] == '\0' || owner[owner_len] == ':'))
cb = handle_matching;
else
cb = handle_nonmatching;
if (cb && !cb(copy, argc, argv, user_data))
goto out;
}
rv = 1;
out:
free(copy);
fclose(fp);
return rv;
}
/*
* Read the iSNS configuration file
*/
int
isns_read_config(const char *filename)
{
FILE *fp;
char *name, *pos;
__isns_config_defaults();
if ((fp = fopen(filename, "r")) == NULL) {
perror(filename);
return -1;
}
while ((pos = parser_get_next_line(fp)) != NULL) {
pos[strcspn(pos, "#")] = '\0';
if (!(name = parser_get_next_word(&pos)))
continue;
isns_config_set(name, pos);
}
fclose(fp);
/* Massage the config file */
if (isns_config.ic_security < 0) {
/* By default, we will enable authentication
* whenever we find our private key, and
* the server's public key. */
if (access(isns_config.ic_auth_key_file, R_OK) == 0
&& access(isns_config.ic_server_key_file, R_OK) == 0)
isns_config.ic_security = 1;
else
isns_config.ic_security = 0;
}
return 0;
}
static int parser_read_file_compact( ParserState *st, PData *section )
{
/* section is the parent pdata that needs some
entries */
PData *pd = 0;
char *line, *cur;
while ( ( line = parser_get_next_line(st) ) ) {
switch ( line[0] ) {
case '>':
/* this section is finished */
return 1;
case '<':
/* add a whole subsection */
pd = parser_create_pdata(strdup( line + 1 ), 0, st->lineno, st->ctd);
pd->entries = list_create( LIST_NO_AUTO_DELETE, LIST_NO_CALLBACK );
parser_read_file_compact( st, pd );
/* add to section */
list_add( section->entries, pd );
break;
default:
/* check name */
if ( ( cur = strchr( line, '»' ) ) == 0 ) {
sprintf( parser_sub_error, tr("parse error: use '%c' for assignment or '<' for section"), '»' );
return 0;
}
cur[0] = 0; cur++;
/* read values as subsection */
pd = parser_create_pdata(strdup( line ),
parser_explode_string( cur, '°' ),
st->lineno, st->ctd);
/* add to section */
list_add( section->entries, pd );
break;
}
}
return 1;
}
