void static_hosts_free_all (void) { while(hosts) static_host_free(hosts); }
void static_hosts_load(int in_chroot) { FILE *f; unsigned int line = 0; StaticHost *h, *next; const char *filename = in_chroot ? "/hosts" : AVAHI_CONFIG_DIR "/hosts"; if (!(f = fopen(filename, "r"))) { if (errno != ENOENT) avahi_log_error ("Failed to open static hosts file: %s", strerror (errno)); return; } current_iteration++; while (!feof(f)) { unsigned int len; char ln[256], *s; char *host, *ip; AvahiAddress a; if (!fgets(ln, sizeof (ln), f)) break; line++; /* Find the start of the line, ignore whitespace */ s = ln + strspn(ln, " \t"); /* Set the end of the string to NULL */ s[strcspn(s, "#\r\n")] = 0; /* Ignore blank lines */ if (*s == 0) continue; /* Read the first string (ip) up to the next whitespace */ len = strcspn(s, " \t"); ip = avahi_strndup(s, len); /* Skip past it */ s += len; /* Find the next token */ s += strspn(s, " \t"); len = strcspn(s, " \t"); host = avahi_strndup(s, len); if (*host == 0) { avahi_log_error("%s:%d: Error, unexpected end of line!", filename, line); avahi_free(host); avahi_free(ip); goto fail; } /* Skip over the host */ s += len; /* Skip past any more spaces */ s += strspn(s, " \t"); /* Anything left? */ if (*s != 0) { avahi_log_error ("%s:%d: Junk on the end of the line!", filename, line); avahi_free(host); avahi_free(ip); goto fail; } if (!avahi_address_parse(ip, AVAHI_PROTO_UNSPEC, &a)) { avahi_log_error("Static host name %s: failed to parse address %s", host, ip); avahi_free(host); avahi_free(ip); goto fail; } avahi_free(ip); if ((h = static_host_find(host, &a))) avahi_free(host); else { h = static_host_new(); h->host = host; h->address = a; avahi_log_info("Loading new static hostname %s.", h->host); } h->iteration = current_iteration; } for (h = hosts; h; h = next) { next = h->hosts_next; if (h->iteration != current_iteration) { avahi_log_info("Static hostname %s vanished, removing.", h->host); static_host_free(h); } } fail: fclose(f); }