tests: Add a sftp_read blocking test.

tests/client/CMakeLists.txt

@@ -11,4 +11,5 @@ add_cmocka_test(torture_request_env torture_request_env.c ${TORTURE_LIBRARY})
 if (WITH_SFTP)
     add_cmocka_test(torture_sftp_static torture_sftp_static.c ${TORTURE_LIBRARY})
     add_cmocka_test(torture_sftp_dir torture_sftp_dir.c ${TORTURE_LIBRARY})
+    add_cmocka_test(torture_sftp_read torture_sftp_read.c ${TORTURE_LIBRARY})
 endif (WITH_SFTP)

tests/client/torture_sftp_read.c

@@ -0,0 +1,83 @@
+#define LIBSSH_STATIC
+
+#include "torture.h"
+#include "sftp.c"
+
+#define MAX_XFER_BUF_SIZE 16384
+
+static void setup(void **state) {
+    ssh_session session;
+    struct torture_sftp *t;
+    const char *host;
+    const char *user;
+    const char *password;
+
+    host = getenv("TORTURE_HOST");
+    if (host == NULL) {
+        host = "localhost";
+    }
+
+    user = getenv("TORTURE_USER");
+    password = getenv("TORTURE_PASSWORD");
+
+    session = torture_ssh_session(host, user, password);
+    assert_false(session == NULL);
+    t = torture_sftp_session(session);
+    assert_false(t == NULL);
+
+    *state = t;
+}
+
+static void teardown(void **state) {
+    struct torture_sftp *t = *state;
+
+    assert_false(t == NULL);
+
+    torture_rmdirs(t->testdir);
+    torture_sftp_close(t);
+}
+
+static void torture_sftp_read_blocking(void **state) {
+    struct torture_sftp *t = *state;
+    char libssh_tmp_file[] = "/tmp/libssh_sftp_test_XXXXXX";
+    char buf[MAX_XFER_BUF_SIZE];
+    ssize_t bytesread;
+    ssize_t byteswritten;
+    int fd;
+    sftp_file file;
+
+
+    file = sftp_open(t->sftp, "/usr/bin/ssh", O_RDONLY, 0);
+    assert_non_null(file);
+
+    fd = mkstemp(libssh_tmp_file);
+    unlink(libssh_tmp_file);
+
+    for (;;) {
+        bytesread = sftp_read(file, buf, MAX_XFER_BUF_SIZE);
+        if (bytesread == 0) {
+                break; /* EOF */
+        }
+        assert_false(bytesread < 0);
+
+        byteswritten = write(fd, buf, bytesread);
+        assert_int_equal(byteswritten, bytesread);
+    }
+
+    close(fd);
+    sftp_close(file);
+}
+
+int torture_run_tests(void) {
+    int rc;
+    const UnitTest tests[] = {
+        unit_test_setup_teardown(torture_sftp_read_blocking, setup, teardown)
+    };
+
+    ssh_init();
+
+    rc = run_tests(tests);
+    ssh_finalize();
+
+    return rc;
+}