Commit deab18df authored by Serhiy Storchaka's avatar Serhiy Storchaka

Issue #26708: Use the "const" qualifier for immutable strings.

This can help to avoid unintentional modification.
parent a8e3b0a1
......@@ -810,8 +810,8 @@ typedef struct {
const char *argument_name;
int nullable;
int allow_fd;
wchar_t *wide;
char *narrow;
const wchar_t *wide;
const char *narrow;
int fd;
Py_ssize_t length;
PyObject *object;
......@@ -834,7 +834,7 @@ path_converter(PyObject *o, void *p)
path_t *path = (path_t *)p;
PyObject *bytes;
Py_ssize_t length;
char *narrow;
const char *narrow;
#define FORMAT_EXCEPTION(exc, fmt) \
PyErr_Format(exc, "%s%s" fmt, \
......@@ -862,7 +862,7 @@ path_converter(PyObject *o, void *p)
if (PyUnicode_Check(o)) {
#ifdef MS_WINDOWS
wchar_t *wide;
const wchar_t *wide;
wide = PyUnicode_AsUnicodeAndSize(o, &length);
if (!wide) {
......@@ -1164,7 +1164,7 @@ convertenviron(void)
for (e = _wenviron; *e != NULL; e++) {
PyObject *k;
PyObject *v;
wchar_t *p = wcschr(*e, L'=');
const wchar_t *p = wcschr(*e, L'=');
if (p == NULL)
continue;
k = PyUnicode_FromWideChar(*e, (Py_ssize_t)(p-*e));
......@@ -1192,7 +1192,7 @@ convertenviron(void)
for (e = environ; *e != NULL; e++) {
PyObject *k;
PyObject *v;
char *p = strchr(*e, '=');
const char *p = strchr(*e, '=');
if (p == NULL)
continue;
k = PyBytes_FromStringAndSize(*e, (int)(p-*e));
......@@ -3483,7 +3483,7 @@ _listdir_windows_no_opendir(path_t *path, PyObject *list)
if (!path->narrow) {
WIN32_FIND_DATAW wFileData;
wchar_t *po_wchars;
const wchar_t *po_wchars;
if (!path->wide) { /* Default arg: "." */
po_wchars = L".";
......@@ -3649,7 +3649,7 @@ _posix_listdir(path_t *path, PyObject *list)
else
#endif
{
char *name;
const char *name;
if (path->narrow) {
name = path->narrow;
/* only return bytes if they specified a bytes object */
......@@ -3831,7 +3831,7 @@ os__getfinalpathname_impl(PyModuleDef *module, PyObject *path)
wchar_t *target_path;
int result_length;
PyObject *result;
wchar_t *path_wchar;
const wchar_t *path_wchar;
path_wchar = PyUnicode_AsUnicode(path);
if (path_wchar == NULL)
......@@ -3920,7 +3920,8 @@ os__getvolumepathname_impl(PyModuleDef *module, PyObject *path)
/*[clinic end generated code: output=79a0ba729f956dbe input=7eacadc40acbda6b]*/
{
PyObject *result;
wchar_t *path_wchar, *mountpath=NULL;
const wchar_t *path_wchar;
wchar_t *mountpath=NULL;
size_t buflen;
BOOL ret;
......@@ -4118,7 +4119,7 @@ os_setpriority_impl(PyModuleDef *module, int which, int who, int priority)
static PyObject *
internal_rename(path_t *src, path_t *dst, int src_dir_fd, int dst_dir_fd, int is_replace)
{
char *function_name = is_replace ? "replace" : "rename";
const char *function_name = is_replace ? "replace" : "rename";
int dir_fd_specified;
#ifdef MS_WINDOWS
......@@ -4298,7 +4299,7 @@ os_system_impl(PyModuleDef *module, PyObject *command)
/*[clinic end generated code: output=800f775e10b7be55 input=86a58554ba6094af]*/
{
long result;
char *bytes = PyBytes_AsString(command);
const char *bytes = PyBytes_AsString(command);
Py_BEGIN_ALLOW_THREADS
result = system(bytes);
Py_END_ALLOW_THREADS
......@@ -4937,7 +4938,8 @@ parse_envlist(PyObject* env, Py_ssize_t *envc_ptr)
Py_ssize_t i, pos, envc;
PyObject *keys=NULL, *vals=NULL;
PyObject *key, *val, *key2, *val2;
char *p, *k, *v;
char *p;
const char *k, *v;
size_t len;
i = PyMapping_Size(env);
......@@ -5052,7 +5054,7 @@ static PyObject *
os_execv_impl(PyModuleDef *module, PyObject *path, PyObject *argv)
/*[clinic end generated code: output=9221f08143146fff input=96041559925e5229]*/
{
char *path_char;
const char *path_char;
char **argvlist;
Py_ssize_t argc;
......@@ -5173,7 +5175,7 @@ static PyObject *
os_spawnv_impl(PyModuleDef *module, int mode, PyObject *path, PyObject *argv)
/*[clinic end generated code: output=140a7945484c8cc5 input=042c91dfc1e6debc]*/
{
char *path_char;
const char *path_char;
char **argvlist;
int i;
Py_ssize_t argc;
......@@ -5251,7 +5253,7 @@ os_spawnve_impl(PyModuleDef *module, int mode, PyObject *path,
PyObject *argv, PyObject *env)
/*[clinic end generated code: output=e7f5f0703610531f input=02362fd937963f8f]*/
{
char *path_char;
const char *path_char;
char **argvlist;
char **envlist;
PyObject *res = NULL;
......@@ -6264,7 +6266,7 @@ static PyObject *
posix_initgroups(PyObject *self, PyObject *args)
{
PyObject *oname;
char *username;
const char *username;
int res;
#ifdef __APPLE__
int gid;
......@@ -7138,16 +7140,16 @@ exit:
static PyObject *
win_readlink(PyObject *self, PyObject *args, PyObject *kwargs)
{
wchar_t *path;
const wchar_t *path;
DWORD n_bytes_returned;
DWORD io_result;
PyObject *po, *result;
int dir_fd;
int dir_fd;
HANDLE reparse_point_handle;
char target_buffer[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
REPARSE_DATA_BUFFER *rdb = (REPARSE_DATA_BUFFER *)target_buffer;
wchar_t *print_name;
const wchar_t *print_name;
static char *keywords[] = {"path", "dir_fd", NULL};
......@@ -7215,8 +7217,8 @@ win_readlink(PyObject *self, PyObject *args, PyObject *kwargs)
#if defined(MS_WINDOWS)
/* Grab CreateSymbolicLinkW dynamically from kernel32 */
static DWORD (CALLBACK *Py_CreateSymbolicLinkW)(LPWSTR, LPWSTR, DWORD) = NULL;
static DWORD (CALLBACK *Py_CreateSymbolicLinkA)(LPSTR, LPSTR, DWORD) = NULL;
static DWORD (CALLBACK *Py_CreateSymbolicLinkW)(LPCWSTR, LPCWSTR, DWORD) = NULL;
static DWORD (CALLBACK *Py_CreateSymbolicLinkA)(LPCSTR, LPCSTR, DWORD) = NULL;
static int
check_CreateSymbolicLink(void)
......@@ -7321,7 +7323,7 @@ _joinA(char *dest_path, const char *root, const char *rest)
/* Return True if the path at src relative to dest is a directory */
static int
_check_dirW(WCHAR *src, WCHAR *dest)
_check_dirW(LPCWSTR src, LPCWSTR dest)
{
WIN32_FILE_ATTRIBUTE_DATA src_info;
WCHAR dest_parent[MAX_PATH];
......@@ -7340,7 +7342,7 @@ _check_dirW(WCHAR *src, WCHAR *dest)
/* Return True if the path at src relative to dest is a directory */
static int
_check_dirA(const char *src, char *dest)
_check_dirA(LPCSTR src, LPCSTR dest)
{
WIN32_FILE_ATTRIBUTE_DATA src_info;
char dest_parent[MAX_PATH];
......@@ -9030,7 +9032,7 @@ static PyObject *
os_putenv_impl(PyModuleDef *module, PyObject *name, PyObject *value)
/*[clinic end generated code: output=a2438cf95e5a0c1c input=ba586581c2e6105f]*/
{
wchar_t *env;
const wchar_t *env;
PyObject *unicode = PyUnicode_FromFormat("%U=%U", name, value);
if (unicode == NULL) {
......@@ -9076,8 +9078,8 @@ os_putenv_impl(PyModuleDef *module, PyObject *name, PyObject *value)
{
PyObject *bytes = NULL;
char *env;
char *name_string = PyBytes_AsString(name);
char *value_string = PyBytes_AsString(value);
const char *name_string = PyBytes_AsString(name);
const char *value_string = PyBytes_AsString(value);
bytes = PyBytes_FromFormat("%s=%s", name_string, value_string);
if (bytes == NULL) {
......@@ -10469,7 +10471,7 @@ cmp_constdefs(const void *v1, const void *v2)
static int
setup_confname_table(struct constdef *table, size_t tablesize,
char *tablename, PyObject *module)
const char *tablename, PyObject *module)
{
PyObject *d = NULL;
size_t i;
......@@ -10596,9 +10598,9 @@ static PyObject *
win32_startfile(PyObject *self, PyObject *args)
{
PyObject *ofilepath;
char *filepath;
char *operation = NULL;
wchar_t *wpath, *woperation;
const char *filepath;
const char *operation = NULL;
const wchar_t *wpath, *woperation;
HINSTANCE rc;
PyObject *unipath, *uoperation = NULL;
......@@ -11003,7 +11005,7 @@ os_listxattr_impl(PyModuleDef *module, path_t *path, int follow_symlinks)
name = path->narrow ? path->narrow : ".";
for (i = 0; ; i++) {
char *start, *trace, *end;
const char *start, *trace, *end;
ssize_t length;
static const Py_ssize_t buffer_sizes[] = { 256, XATTR_LIST_MAX, 0 };
Py_ssize_t buffer_size = buffer_sizes[i];
......@@ -11482,7 +11484,7 @@ DirEntry_fetch_stat(DirEntry *self, int follow_symlinks)
struct _Py_stat_struct st;
#ifdef MS_WINDOWS
wchar_t *path;
const wchar_t *path;
path = PyUnicode_AsUnicode(self->path);
if (!path)
......@@ -11499,7 +11501,7 @@ DirEntry_fetch_stat(DirEntry *self, int follow_symlinks)
}
#else /* POSIX */
PyObject *bytes;
char *path;
const char *path;
if (!PyUnicode_FSConverter(self->path, &bytes))
return NULL;
......@@ -11683,7 +11685,7 @@ DirEntry_inode(DirEntry *self)
{
#ifdef MS_WINDOWS
if (!self->got_file_index) {
wchar_t *path;
const wchar_t *path;
struct _Py_stat_struct stat;
path = PyUnicode_AsUnicode(self->path);
......@@ -11777,7 +11779,7 @@ static PyTypeObject DirEntryType = {
#ifdef MS_WINDOWS
static wchar_t *
join_path_filenameW(wchar_t *path_wide, wchar_t* filename)
join_path_filenameW(const wchar_t *path_wide, const wchar_t *filename)
{
Py_ssize_t path_len;
Py_ssize_t size;
......@@ -12208,7 +12210,7 @@ posix_scandir(PyObject *self, PyObject *args, PyObject *kwargs)
#ifdef MS_WINDOWS
wchar_t *path_strW;
#else
char *path;
const char *path;
#endif
iterator = PyObject_New(ScandirIterator, &ScandirIteratorType);
......
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