diff options
Diffstat (limited to 'src/shared/dns-domain.c')
| -rw-r--r-- | src/shared/dns-domain.c | 96 |
1 files changed, 27 insertions, 69 deletions
diff --git a/src/shared/dns-domain.c b/src/shared/dns-domain.c index 1235ff109b..d1fb97fe92 100644 --- a/src/shared/dns-domain.c +++ b/src/shared/dns-domain.c @@ -558,8 +558,26 @@ const struct hash_ops dns_name_hash_ops = { .compare = dns_name_compare_func }; +static int dns_label_unescape_undo_idna(const char **name, char *dest, size_t sz) { + int r, k; + + /* Clobbers all arguments on failure... */ + + r = dns_label_unescape(name, dest, sz); + if (r <= 0) + return r; + + k = dns_label_undo_idna(dest, r, dest, sz); + if (k < 0) + return k; + if (k == 0) /* not an IDNA name */ + return r; + + return k; +} + int dns_name_equal(const char *x, const char *y) { - int r, q, k, w; + int r, q; assert(x); assert(y); @@ -567,27 +585,13 @@ int dns_name_equal(const char *x, const char *y) { for (;;) { char la[DNS_LABEL_MAX], lb[DNS_LABEL_MAX]; - r = dns_label_unescape(&x, la, sizeof(la)); + r = dns_label_unescape_undo_idna(&x, la, sizeof(la)); if (r < 0) return r; - if (r > 0) { - k = dns_label_undo_idna(la, r, la, sizeof(la)); - if (k < 0) - return k; - if (k > 0) - r = k; - } - q = dns_label_unescape(&y, lb, sizeof(lb)); + q = dns_label_unescape_undo_idna(&y, lb, sizeof(lb)); if (q < 0) return q; - if (q > 0) { - w = dns_label_undo_idna(lb, q, lb, sizeof(lb)); - if (w < 0) - return w; - if (w > 0) - q = w; - } if (r != q) return false; @@ -601,7 +605,7 @@ int dns_name_equal(const char *x, const char *y) { int dns_name_endswith(const char *name, const char *suffix) { const char *n, *s, *saved_n = NULL; - int r, q, k, w; + int r, q; assert(name); assert(suffix); @@ -612,30 +616,16 @@ int dns_name_endswith(const char *name, const char *suffix) { for (;;) { char ln[DNS_LABEL_MAX], ls[DNS_LABEL_MAX]; - r = dns_label_unescape(&n, ln, sizeof(ln)); + r = dns_label_unescape_undo_idna(&n, ln, sizeof(ln)); if (r < 0) return r; - if (r > 0) { - k = dns_label_undo_idna(ln, r, ln, sizeof(ln)); - if (k < 0) - return k; - if (k > 0) - r = k; - } if (!saved_n) saved_n = n; - q = dns_label_unescape(&s, ls, sizeof(ls)); + q = dns_label_unescape_undo_idna(&s, ls, sizeof(ls)); if (q < 0) return q; - if (q > 0) { - w = dns_label_undo_idna(ls, q, ls, sizeof(ls)); - if (w < 0) - return w; - if (w > 0) - q = w; - } if (r == 0 && q == 0) return true; @@ -652,24 +642,6 @@ int dns_name_endswith(const char *name, const char *suffix) { } } -static int dns_label_unescape_undo_idna(const char **name, char *dest, size_t sz) { - int r, k; - - /* Clobbers all arguments on failure... */ - - r = dns_label_unescape(name, dest, sz); - if (r <= 0) - return r; - - k = dns_label_undo_idna(dest, r, dest, sz); - if (k < 0) - return k; - if (k == 0) /* not an IDNA name */ - return r; - - return k; -} - int dns_name_startswith(const char *name, const char *prefix) { const char *n, *p; int r, q; @@ -702,7 +674,7 @@ int dns_name_startswith(const char *name, const char *prefix) { int dns_name_change_suffix(const char *name, const char *old_suffix, const char *new_suffix, char **ret) { const char *n, *s, *saved_before = NULL, *saved_after = NULL, *prefix; - int r, q, k, w; + int r, q; assert(name); assert(old_suffix); @@ -718,30 +690,16 @@ int dns_name_change_suffix(const char *name, const char *old_suffix, const char if (!saved_before) saved_before = n; - r = dns_label_unescape(&n, ln, sizeof(ln)); + r = dns_label_unescape_undo_idna(&n, ln, sizeof(ln)); if (r < 0) return r; - if (r > 0) { - k = dns_label_undo_idna(ln, r, ln, sizeof(ln)); - if (k < 0) - return k; - if (k > 0) - r = k; - } if (!saved_after) saved_after = n; - q = dns_label_unescape(&s, ls, sizeof(ls)); + q = dns_label_unescape_undo_idna(&s, ls, sizeof(ls)); if (q < 0) return q; - if (q > 0) { - w = dns_label_undo_idna(ls, q, ls, sizeof(ls)); - if (w < 0) - return w; - if (w > 0) - q = w; - } if (r == 0 && q == 0) break; |