aboutsummaryrefslogtreecommitdiff
path: root/testcode/unitdname.c
diff options
context:
space:
mode:
Diffstat (limited to 'testcode/unitdname.c')
-rw-r--r--testcode/unitdname.c147
1 files changed, 147 insertions, 0 deletions
diff --git a/testcode/unitdname.c b/testcode/unitdname.c
index 6769127b9349..08a2dbad774d 100644
--- a/testcode/unitdname.c
+++ b/testcode/unitdname.c
@@ -39,6 +39,7 @@
*/
#include "config.h"
+#include <ctype.h>
#include "util/log.h"
#include "testcode/unitmain.h"
#include "util/data/dname.h"
@@ -858,6 +859,151 @@ dname_setup_bufs(sldns_buffer* loopbuf, sldns_buffer* boundbuf)
sldns_buffer_flip(boundbuf);
}
+static void
+dname_test_str(sldns_buffer* buff)
+{
+ char result[LDNS_MAX_DOMAINLEN], expect[LDNS_MAX_DOMAINLEN], *e;
+ size_t i;
+ unit_show_func("util/data/dname.c", "dname_str");
+
+ /* root ; expected OK */
+ sldns_buffer_clear(buff);
+ sldns_buffer_write(buff, "\000", 1);
+ sldns_buffer_flip(buff);
+ unit_assert( sldns_buffer_limit(buff) == 1 );
+ unit_assert( pkt_dname_len(buff) == 1 );
+ dname_str(sldns_buffer_begin(buff), result);
+ unit_assert( strcmp( ".", result) == 0 );
+
+ /* LDNS_MAX_DOMAINLEN - 1 ; expected OK */
+ sldns_buffer_clear(buff);
+ sldns_buffer_write(buff,
+ "\077abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890" /* 64 up to here */
+ "\077abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890" /* 128 up to here */
+ "\077abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890" /* 192 up to here */
+ "\074abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567" /* 253 up to here */
+ "\000" /* 254 up to here */
+ , 254);
+ sldns_buffer_flip(buff);
+ unit_assert( sldns_buffer_limit(buff) == 254 );
+ unit_assert( pkt_dname_len(buff) == 254 );
+ dname_str(sldns_buffer_begin(buff), result);
+ unit_assert( strcmp(
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890."
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890."
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890."
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567"
+ ".", result) == 0 );
+
+ /* LDNS_MAX_DOMAINLEN ; expected OK */
+ sldns_buffer_clear(buff);
+ sldns_buffer_write(buff,
+ "\077abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890" /* 64 up to here */
+ "\077abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890" /* 128 up to here */
+ "\077abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890" /* 192 up to here */
+ "\075abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345678" /* 254 up to here */
+ "\000" /* 255 up to here */
+ , 255);
+ sldns_buffer_flip(buff);
+ unit_assert( sldns_buffer_limit(buff) == 255 );
+ unit_assert( pkt_dname_len(buff) == 255 );
+ dname_str(sldns_buffer_begin(buff), result);
+ unit_assert( strcmp(
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890."
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890."
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890."
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012345678"
+ ".", result) == 0 );
+
+ /* LDNS_MAX_DOMAINLEN + 1 ; expected to fail, output uses '&' on the latest label */
+ sldns_buffer_clear(buff);
+ sldns_buffer_write(buff,
+ "\077abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890" /* 64 up to here */
+ "\077abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890" /* 128 up to here */
+ "\077abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890" /* 192 up to here */
+ "\076abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" /* 255 up to here */
+ "\000" /* 256 up to here */
+ , 256);
+ sldns_buffer_flip(buff);
+ unit_assert( sldns_buffer_limit(buff) == 256 );
+ unit_assert( pkt_dname_len(buff) == 0 );
+ dname_str(sldns_buffer_begin(buff), result);
+ unit_assert( strcmp(
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890."
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890."
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890."
+ "&", result) == 0 );
+
+ /* LDNS_MAX_LABELLEN + 1 ; expected to fail, output uses '#' on the offending label */
+ sldns_buffer_clear(buff);
+ sldns_buffer_write(buff,
+ "\077abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890" /* 64 up to here */
+ "\100abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890a" /* 129 up to here */
+ "\000" /* 130 up to here */
+ , 130);
+ sldns_buffer_flip(buff);
+ unit_assert( sldns_buffer_limit(buff) == 130 );
+ unit_assert( pkt_dname_len(buff) == 0 );
+ dname_str(sldns_buffer_begin(buff), result);
+ unit_assert( strcmp(
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890."
+ "#", result) == 0 );
+
+ /* LDNS_MAX_DOMAINLEN with single labels; expected OK */
+ sldns_buffer_clear(buff);
+ for(i=0; i<=252; i+=2)
+ sldns_buffer_write(buff, "\001a", 2);
+ sldns_buffer_write_u8(buff, 0);
+ sldns_buffer_flip(buff);
+ unit_assert( sldns_buffer_limit(buff) == 255 );
+ unit_assert( pkt_dname_len(buff) == 255 );
+ dname_str(sldns_buffer_begin(buff), result);
+ e = expect;
+ for(i=0; i<=252; i+=2) {
+ *e++ = 'a';
+ *e++ = '.';
+ }
+ *e = '\0';
+ unit_assert( strcmp(expect, result) == 0 );
+
+ /* LDNS_MAX_DOMAINLEN + 1 with single labels; expected to fail, output uses '&' on the latest label */
+ sldns_buffer_clear(buff);
+ for(i=0; i<=250; i+=2)
+ sldns_buffer_write(buff, "\001a", 2);
+ sldns_buffer_write(buff, "\002ab", 3);
+ sldns_buffer_write_u8(buff, 0);
+ sldns_buffer_flip(buff);
+ unit_assert( sldns_buffer_limit(buff) == 256 );
+ unit_assert( pkt_dname_len(buff) == 0 );
+ dname_str(sldns_buffer_begin(buff), result);
+ e = expect;
+ for(i=0; i<=250; i+=2) {
+ *e++ = 'a';
+ *e++ = '.';
+ }
+ *e++ = '&';
+ *e = '\0';
+ unit_assert( strcmp(expect, result) == 0 );
+
+ /* Only alphas, numericals and '-', '_' and '*' are allowed in the output */
+ for(i=1; i<=255; i++) {
+ if(isalnum(i) || i == '-' || i == '_' || i == '*')
+ continue;
+ sldns_buffer_clear(buff);
+ sldns_buffer_write_u8(buff, 1);
+ sldns_buffer_write_u8(buff, (uint8_t)i);
+ sldns_buffer_write_u8(buff, 0);
+ sldns_buffer_flip(buff);
+ unit_assert( sldns_buffer_limit(buff) == 3 );
+ unit_assert( pkt_dname_len(buff) == 3);
+ dname_str(sldns_buffer_begin(buff), result);
+ if(strcmp( "?.", result) != 0 ) {
+ log_err("ASCII value '0x%lX' allowed in string output", (unsigned long)i);
+ unit_assert(0);
+ }
+ }
+}
+
void dname_test(void)
{
sldns_buffer* loopbuf = sldns_buffer_new(14);
@@ -884,6 +1030,7 @@ void dname_test(void)
dname_test_topdomain();
dname_test_valid();
dname_test_has_label();
+ dname_test_str(buff);
sldns_buffer_free(buff);
sldns_buffer_free(loopbuf);
sldns_buffer_free(boundbuf);
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-02 18:05:06 +0000