/*
* open rcfile and load its content, if already open - return previous handle
*/
int
rc_open(const char *filename, const char *mode,struct rcfile **rcfile)
{
struct rcfile *rcp;
FILE *f;
rcp = rc_find(filename);
if (rcp) {
*rcfile = rcp;
return (0);
}
f = fopen (filename, mode);
if (f == NULL)
return errno;
rcp = malloc(sizeof(struct rcfile));
if (rcp == NULL) {
fclose(f);
return ENOMEM;
}
bzero(rcp, sizeof(struct rcfile));
rcp->rf_name = strdup(filename);
rcp->rf_f = f;
SLIST_INSERT_HEAD(&pf_head, rcp, rf_next);
rc_parse(rcp);
*rcfile = rcp;
return (0);
}
int
rc_merge(char *filename,struct rcfile **rcfile) {
struct rcfile *rcp = *rcfile;
FILE *f, *t;
if (rcp == NULL) {
return rc_open(filename,"r",rcfile);
}
f = fopen (filename, "r");
if (f==NULL)
return errno;
t = rcp->rf_f;
rcp->rf_f = f;
rc_parse(rcp);
rcp->rf_f = t;
fclose(f);
return 0;
}