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libuv: win/spawn: run executables with no file extension

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Backport this commit from libuv PR 4241 to restore `execute_process()`
support for running executables on Windows with no file extension.

Fixes: #25450
This commit is contained in:
Kyle Edwards 2023-11-29 13:05:43 -05:00
parent 1b82da7e15
commit da9df7425a
1 changed files with 12 additions and 25 deletions
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37
Utilities/cmlibuv/src/win/process.c
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@ -274,19 +274,16 @@ static WCHAR* path_search_walk_ext(const WCHAR *dir,
const WCHAR *name,
size_t name_len,
WCHAR *cwd,
size_t cwd_len,
int name_has_ext) {
size_t cwd_len) {
WCHAR* result;
/* If the name itself has a nonempty extension, try this extension first */
if (name_has_ext) {
result = search_path_join_test(dir, dir_len,
name, name_len,
L"", 0,
cwd, cwd_len);
if (result != NULL) {
return result;
}
/* Try the name itself first */
result = search_path_join_test(dir, dir_len,
name, name_len,
L"", 0,
cwd, cwd_len);
if (result != NULL) {
return result;
}
/* Try .com extension */
@ -329,8 +326,7 @@ static WCHAR* path_search_walk_ext(const WCHAR *dir,
* - If there's really only a filename, check the current directory for file,
* then search all path directories.
*
* - If filename specified has *any* extension, search for the file with the
* specified extension first.
* - Search for the file exactly as specified first.
*
* - If the literal filename is not found in a directory, try *appending*
* (not replacing) .com first and then .exe.
@ -360,10 +356,8 @@ static WCHAR* search_path(const WCHAR *file,
int file_has_dir;
WCHAR* result = NULL;
WCHAR *file_name_start;
WCHAR *dot;
const WCHAR *dir_start, *dir_end, *dir_path;
size_t dir_len;
int name_has_ext;
size_t file_len = wcslen(file);
size_t cwd_len = wcslen(cwd);
@ -387,17 +381,12 @@ static WCHAR* search_path(const WCHAR *file,
file_has_dir = file_name_start != file;
/* Check if the filename includes an extension */
dot = wcschr(file_name_start, L'.');
name_has_ext = (dot != NULL && dot[1] != L'\0');
if (file_has_dir) {
/* The file has a path inside, don't use path */
result = path_search_walk_ext(
file, file_name_start - file,
file_name_start, file_len - (file_name_start - file),
cwd, cwd_len,
name_has_ext);
cwd, cwd_len);
} else {
dir_end = path;
@ -405,8 +394,7 @@ static WCHAR* search_path(const WCHAR *file,
/* The file is really only a name; look in cwd first, then scan path */
result = path_search_walk_ext(L"", 0,
file, file_len,
cwd, cwd_len,
name_has_ext);
cwd, cwd_len);
while (result == NULL) {
if (dir_end == NULL || *dir_end == L'\0') {
@ -454,8 +442,7 @@ static WCHAR* search_path(const WCHAR *file,
result = path_search_walk_ext(dir_path, dir_len,
file, file_len,
cwd, cwd_len,
name_has_ext);
cwd, cwd_len);
}
}