| 1 | #include "test-tool.h" |
| 2 | #include "git-compat-util.h" |
| 3 | #include "strbuf.h" |
| 4 | |
| 5 | #ifdef GIT_WINDOWS_NATIVE |
| 6 | static const char *const usage_string = "<pipe-filename>"; |
| 7 | |
| 8 | #define TEST_BUFSIZE (4096) |
| 9 | |
| 10 | int cmd__windows_named_pipe(int argc, const char **argv) |
| 11 | { |
| 12 | const char *filename; |
| 13 | struct strbuf pathname = STRBUF_INIT; |
| 14 | int err; |
| 15 | HANDLE h; |
| 16 | BOOL connected; |
| 17 | char buf[TEST_BUFSIZE + 1]; |
| 18 | |
| 19 | if (argc < 2) |
| 20 | goto print_usage; |
| 21 | filename = argv[1]; |
| 22 | if (strpbrk(filename, "/\\")) |
| 23 | goto print_usage; |
| 24 | strbuf_addf(&pathname, "//./pipe/%s", filename); |
| 25 | |
| 26 | /* |
| 27 | * Create a single instance of the server side of the named pipe. |
| 28 | * This will allow exactly one client instance to connect to it. |
| 29 | */ |
| 30 | h = CreateNamedPipeA( |
| 31 | pathname.buf, |
| 32 | PIPE_ACCESS_INBOUND | FILE_FLAG_FIRST_PIPE_INSTANCE, |
| 33 | PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT, |
| 34 | PIPE_UNLIMITED_INSTANCES, |
| 35 | TEST_BUFSIZE, TEST_BUFSIZE, 0, NULL); |
| 36 | if (h == INVALID_HANDLE_VALUE) { |
| 37 | err = err_win_to_posix(GetLastError()); |
| 38 | fprintf(stderr, "CreateNamedPipe failed: %s\n", |
| 39 | strerror(err)); |
| 40 | return err; |
| 41 | } |
| 42 | |
| 43 | connected = ConnectNamedPipe(h, NULL) |
| 44 | ? TRUE |
| 45 | : (GetLastError() == ERROR_PIPE_CONNECTED); |
| 46 | if (!connected) { |
| 47 | err = err_win_to_posix(GetLastError()); |
| 48 | fprintf(stderr, "ConnectNamedPipe failed: %s\n", |
| 49 | strerror(err)); |
| 50 | CloseHandle(h); |
| 51 | return err; |
| 52 | } |
| 53 | |
| 54 | while (1) { |
| 55 | DWORD nbr; |
| 56 | BOOL success = ReadFile(h, buf, TEST_BUFSIZE, &nbr, NULL); |
| 57 | if (!success || nbr == 0) |
| 58 | break; |
| 59 | buf[nbr] = 0; |
| 60 | |
| 61 | write(1, buf, nbr); |
| 62 | } |
| 63 | |
| 64 | DisconnectNamedPipe(h); |
| 65 | CloseHandle(h); |
| 66 | return 0; |
| 67 | |
| 68 | print_usage: |
| 69 | fprintf(stderr, "usage: %s %s\n", argv[0], usage_string); |
| 70 | return 1; |
| 71 | } |
| 72 | #endif |