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comparison cli-kex.c @ 1676:d5cdc60db08e

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ext-info handling for server-sig-algs only client side is handled
author Matt Johnston <matt@ucc.asn.au>
date Tue, 19 May 2020 00:31:41 +0800
parents ba6fc7afe1c5
children 435cfb9ec96e
comparison
equal deleted inserted replaced
1675:ae41624c2198 1676:d5cdc60db08e
409 if (line != NULL) { 409 if (line != NULL) {
410 buf_free(line); 410 buf_free(line);
411 } 411 }
412 m_free(fingerprint); 412 m_free(fingerprint);
413 } 413 }
414
415 void recv_msg_ext_info(void) {
416 /* This message is not client-specific in the protocol but Dropbear only handles
417 a server-sent message at present. */
418 unsigned int num_ext;
419 unsigned int i;
420
421 num_ext = buf_getint(ses.payload);
422 TRACE(("received SSH_MSG_EXT_INFO with %d items", num_ext))
423
424 for (i = 0; i < num_ext; i++) {
425 unsigned int name_len;
426 char *ext_name = buf_getstring(ses.payload, &name_len);
427 TRACE(("extension %d name '%s'", i, ext_name))
428 if (cli_ses.server_sig_algs == NULL
429 && name_len == strlen(SSH_SERVER_SIG_ALGS)
430 && strcmp(ext_name, SSH_SERVER_SIG_ALGS) == 0) {
431 cli_ses.server_sig_algs = buf_getbuf(ses.payload);
432 } else {
433 /* valid extension values could be >MAX_STRING_LEN */
434 buf_eatstring(ses.payload);
435 }
436 m_free(ext_name);
437 }
438 }