+/*
+ * This function returns true if a particular option appears in a
+ * comma-delimited options list
+ */
+static int opt_in_list(char *opt, char *optlist)
+{
+ char *list, *s;
+
+ if (!optlist)
+ return 0;
+ list = string_copy(optlist);
+
+ s = strtok(list, ",");
+ while(s) {
+ if (strcmp(s, opt) == 0) {
+ free(list);
+ return 1;
+ }
+ s = strtok(NULL, ",");
+ }
+ free(list);
+ return 0;
+}
+
+/* See if the filesystem matches the criteria given by the -t option */
+static int fs_match(struct fs_info *fs, struct fs_type_compile *cmp)
+{
+ int n, ret = 0, checked_type = 0;
+ char *cp;
+
+ if (cmp->list == 0 || cmp->list[0] == 0)
+ return 1;
+
+ for (n=0; (cp = cmp->list[n]); n++) {
+ switch (cmp->type[n]) {
+ case FS_TYPE_NORMAL:
+ checked_type++;
+ if (strcmp(cp, fs->type) == 0) {
+ ret = 1;
+ }
+ break;
+ case FS_TYPE_NEGOPT:
+ if (opt_in_list(cp, fs->opts))
+ return 0;
+ break;
+ case FS_TYPE_OPT:
+ if (!opt_in_list(cp, fs->opts))
+ return 0;
+ break;
+ }
+ }
+ if (checked_type == 0)
+ return 1;
+ return (cmp->negate ? !ret : ret);
+}