ced24fde7d
There is a small typo in src/libguac/tests/parser/read.c, src/libguac/tests/socket/fd_send_instruction.c, src/libguac/tests/socket/nested_send_instruction.c. Should read `verifying` rather than `verfying`. Fixes https://issues.apache.org/jira/browse/GUACAMOLE-1225
137 lines
4.0 KiB
C
137 lines
4.0 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include <CUnit/CUnit.h>
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#include <guacamole/protocol.h>
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#include <guacamole/socket.h>
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#include <stdlib.h>
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#include <unistd.h>
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/**
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* Test string which contains exactly four Unicode characters encoded in UTF-8.
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* This particular test string uses several characters which encode to multiple
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* bytes in UTF-8.
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*/
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#define UTF8_4 "\xe7\x8a\xac\xf0\x90\xac\x80z\xc3\xa1"
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/**
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* Writes a series of Guacamole instructions using a normal guac_socket
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* wrapping the given file descriptor. The instructions written correspond to
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* the instructions verified by read_expected_instructions(). The given file
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* descriptor is automatically closed as a result of calling this function.
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*
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* @param fd
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* The file descriptor to write instructions to.
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*/
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static void write_instructions(int fd) {
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/* Open guac socket */
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guac_socket* socket = guac_socket_open(fd);
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/* Write nothing if socket cannot be allocated (test will fail in parent
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* process due to failure to read) */
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if (socket == NULL) {
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close(fd);
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return;
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}
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/* Write instructions */
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guac_protocol_send_name(socket, "a" UTF8_4 "b" UTF8_4 "c");
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guac_protocol_send_sync(socket, 12345);
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guac_socket_flush(socket);
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/* Close and free socket */
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guac_socket_free(socket);
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}
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/**
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* Reads raw bytes from the given file descriptor until no further bytes
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* remain, verifying that those bytes represent the series of Guacamole
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* instructions expected to be written by write_instructions(). The given
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* file descriptor is automatically closed as a result of calling this
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* function.
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*
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* @param fd
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* The file descriptor to read data from.
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*/
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static void read_expected_instructions(int fd) {
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char expected[] =
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"4.name,11.a" UTF8_4 "b" UTF8_4 "c;"
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"4.sync,5.12345;";
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int numread;
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char buffer[1024];
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int offset = 0;
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/* Read everything available into buffer */
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while ((numread = read(fd, &(buffer[offset]),
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sizeof(buffer) - offset)) > 0) {
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offset += numread;
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}
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/* Verify length of read data */
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CU_ASSERT_EQUAL(offset, strlen(expected));
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/* Add NULL terminator */
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buffer[offset] = '\0';
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/* Read value should be equal to expected value */
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CU_ASSERT_STRING_EQUAL(buffer, expected);
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/* File descriptor is no longer needed */
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close(fd);
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}
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/**
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* Tests that the file descriptor implementation of guac_socket properly
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* implements writing of instructions. A child process is forked to write a
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* series of instructions which are read and verified by the parent process.
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*/
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void test_socket__fd_send_instruction() {
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int fd[2];
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/* Create pipe */
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CU_ASSERT_EQUAL_FATAL(pipe(fd), 0);
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int read_fd = fd[0];
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int write_fd = fd[1];
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/* Fork into writer process (child) and reader process (parent) */
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int childpid;
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CU_ASSERT_NOT_EQUAL_FATAL((childpid = fork()), -1);
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/* Attempt to write a series of instructions within the child process */
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if (childpid == 0) {
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close(read_fd);
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write_instructions(write_fd);
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exit(0);
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}
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/* Read and verify the expected instructions within the parent process */
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close(write_fd);
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read_expected_instructions(read_fd);
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}
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