Adding upstream version 9.1.upstream/9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 157 insertions, 0 deletions

diff --git a/lib/clippy.c b/lib/clippy.c
new file mode 100644
index 0000000..d414053
--- /dev/null
+++ b/lib/clippy.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * clippy (CLI preparator in python) main executable
+ * Copyright (C) 2016-2017  David Lamparter for NetDEF, Inc.
+ */
+
+#include "config.h"
+#include <Python.h>
+#include <string.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include "getopt.h"
+
+#include "command_graph.h"
+#include "clippy.h"
+
+#if PY_VERSION_HEX >= 0x03080000
+/* new python init/config API added in Python 3.8 */
+int main(int argc, char **argv)
+{
+	PyStatus status;
+	PyPreConfig preconfig[1];
+	PyConfig config[1];
+
+	PyPreConfig_InitPythonConfig(preconfig);
+	preconfig->configure_locale = 0;
+	preconfig->coerce_c_locale = 1;
+	preconfig->coerce_c_locale_warn = 0;
+	preconfig->isolated = 0;
+	preconfig->utf8_mode = 1;
+	preconfig->parse_argv = 0;
+
+	status = Py_PreInitializeFromBytesArgs(preconfig, argc, argv);
+	if (PyStatus_Exception(status))
+		Py_ExitStatusException(status);
+
+	PyConfig_InitPythonConfig(config);
+#if PY_VERSION_HEX >= 0x030b0000	/* 3.11 */
+	config->safe_path = 0;
+#endif
+
+	status = PyConfig_SetBytesArgv(config, argc, argv);
+	if (PyStatus_Exception(status))
+		Py_ExitStatusException(status);
+
+	PyConfig_SetBytesString(config, &config->program_name,
+				argc > 0 ? argv[0] : "clippy");
+	if (argc > 1)
+		PyConfig_SetBytesString(config, &config->run_filename, argv[1]);
+
+	PyImport_AppendInittab("_clippy", command_py_init);
+
+	status = Py_InitializeFromConfig(config);
+	if (PyStatus_Exception(status))
+		Py_ExitStatusException(status);
+
+	PyConfig_Clear(config);
+
+	return Py_RunMain();
+}
+
+#else /* Python < 3.8 */
+/* old python init/config API, deprecated in Python 3.11 */
+#if PY_MAJOR_VERSION >= 3
+#define pychar wchar_t
+static wchar_t *wconv(const char *s)
+{
+	size_t outlen = s ? mbstowcs(NULL, s, 0) : 0;
+	wchar_t *out = malloc((outlen + 1) * sizeof(wchar_t));
+
+	if (outlen > 0)
+		mbstowcs(out, s, outlen);
+	out[outlen] = 0;
+	return out;
+}
+#else
+#define pychar char
+#define wconv(x) x
+#endif
+
+int main(int argc, char **argv)
+{
+	pychar **wargv;
+
+#if PY_VERSION_HEX >= 0x03040000 /* 3.4 */
+	Py_SetStandardStreamEncoding("UTF-8", NULL);
+#endif
+	wchar_t *name = wconv(argv[0]);
+	Py_SetProgramName(name);
+	PyImport_AppendInittab("_clippy", command_py_init);
+
+	Py_Initialize();
+
+	wargv = malloc(argc * sizeof(pychar *));
+	for (int i = 1; i < argc; i++)
+		wargv[i - 1] = wconv(argv[i]);
+	PySys_SetArgv(argc - 1, wargv);
+
+	const char *pyfile = argc > 1 ? argv[1] : NULL;
+	FILE *fp;
+	if (pyfile) {
+		fp = fopen(pyfile, "r");
+		if (!fp) {
+			fprintf(stderr, "%s: %s\n", pyfile, strerror(errno));
+
+			free(name);
+			return 1;
+		}
+	} else {
+		fp = stdin;
+		char *ver = strdup(Py_GetVersion());
+		char *cr = strchr(ver, '\n');
+		if (cr)
+			*cr = ' ';
+		fprintf(stderr, "clippy interactive shell\n(Python %s)\n", ver);
+		free(ver);
+		PyRun_SimpleString(
+			"import rlcompleter, readline\n"
+			"readline.parse_and_bind('tab: complete')");
+	}
+
+	if (PyRun_AnyFile(fp, pyfile)) {
+		if (PyErr_Occurred())
+			PyErr_Print();
+
+		free(name);
+		return 1;
+	}
+	Py_Finalize();
+
+#if PY_MAJOR_VERSION >= 3
+	for (int i = 1; i < argc; i++)
+		free(wargv[i - 1]);
+#endif
+	free(name);
+	free(wargv);
+	return 0;
+}
+#endif /* Python < 3.8 */
+
+/* and now for the ugly part... provide simplified logging functions so we
+ * don't need to link libzebra (which would be a circular build dep) */
+
+#include "log.h"
+
+PRINTFRR(3, 0)
+void vzlogx(const struct xref_logmsg *xref, int prio,
+	    const char *format, va_list args)
+{
+	vfprintf(stderr, format, args);
+	fputs("\n", stderr);
+}
+
+void memory_oom(size_t size, const char *name)
+{
+	abort();
+}