diff options
Diffstat (limited to 'win32')
| -rw-r--r-- | win32/win32.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/win32/win32.c b/win32/win32.c index e1ac4054fd..9cbd07f669 100644 --- a/win32/win32.c +++ b/win32/win32.c @@ -79,6 +79,7 @@ static char *w32_getenv(const char *name, UINT cp); #undef fclose #undef close #undef setsockopt +#undef dup2 #if defined __BORLANDC__ # define _filbuf _fgetc @@ -5465,6 +5466,28 @@ rb_w32_getppid(void) return ppid; } +STATIC_ASSERT(std_handle, (STD_OUTPUT_HANDLE-STD_INPUT_HANDLE)==(STD_ERROR_HANDLE-STD_OUTPUT_HANDLE)); + +/* License: Ruby's */ +#define set_new_std_handle(newfd, handle) do { \ + if ((unsigned)(newfd) > 2) break; \ + SetStdHandle(STD_INPUT_HANDLE+(STD_OUTPUT_HANDLE-STD_INPUT_HANDLE)*(newfd), \ + (handle)); \ + } while (0) +#define set_new_std_fd(newfd) set_new_std_handle(newfd, (HANDLE)rb_w32_get_osfhandle(newfd)) + +/* License: Ruby's */ +int +rb_w32_dup2(int oldfd, int newfd) +{ + int ret; + + if (oldfd == newfd) return newfd; + ret = dup2(oldfd, newfd); + set_new_std_fd(newfd); + return ret; +} + /* License: Ruby's */ int rb_w32_uopen(const char *file, int oflag, ...) |