diff options
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/getpath.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/Modules/getpath.c b/Modules/getpath.c index e6a3e8e78c..bfb33316d9 100644 --- a/Modules/getpath.c +++ b/Modules/getpath.c @@ -296,6 +296,41 @@ absolutize(wchar_t *path) } +#if defined(__CYGWIN__) || defined(__MINGW32__) +/* add_exe_suffix requires that progpath be allocated at least + MAXPATHLEN + 1 bytes. +*/ + +#ifndef EXE_SUFFIX +#define EXE_SUFFIX L".exe" +#endif + +static void +add_exe_suffix(wchar_t *progpath) +{ + /* Check for already have an executable suffix */ + size_t n = wcslen(progpath); + size_t s = wcslen(EXE_SUFFIX); + if (wcsncasecmp(EXE_SUFFIX, progpath+n-s, s) != 0) { + if (n + s > MAXPATHLEN) { + Py_FatalError("progpath overflow in getpath.c's add_exe_suffix()"); + } + /* Save original path for revert */ + wchar_t orig[MAXPATHLEN+1]; + wcsncpy(orig, progpath, MAXPATHLEN); + + wcsncpy(progpath+n, EXE_SUFFIX, s); + progpath[n+s] = '\0'; + + if (!isxfile(progpath)) { + /* Path that added suffix is invalid */ + wcsncpy(progpath, orig, MAXPATHLEN); + } + } +} +#endif + + /* search_for_prefix requires that argv0_path be no more than MAXPATHLEN bytes long. */ @@ -605,6 +640,16 @@ calculate_program_full_path(const _PyCoreConfig *core_config, if (program_full_path[0] != SEP && program_full_path[0] != '\0') { absolutize(program_full_path); } +#if defined(__CYGWIN__) || defined(__MINGW32__) + /* For these platforms it is necessary to ensure that the .exe suffix + * is appended to the filename, otherwise there is potential for + * sys.executable to return the name of a directory under the same + * path (bpo-28441). + */ + if (program_full_path[0] != '\0') { + add_exe_suffix(program_full_path); + } +#endif config->program_full_path = _PyMem_RawWcsdup(program_full_path); if (config->program_full_path == NULL) { |