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// 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();
}
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