diff options
Diffstat (limited to 'Build/source/libs/libgnuw32/popen.c')
-rw-r--r-- | Build/source/libs/libgnuw32/popen.c | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/Build/source/libs/libgnuw32/popen.c b/Build/source/libs/libgnuw32/popen.c deleted file mode 100644 index 796a54eeecf..00000000000 --- a/Build/source/libs/libgnuw32/popen.c +++ /dev/null @@ -1,296 +0,0 @@ -/* libc replacement functions for win32. - -Copyright (C) 1998, 99 Free Software Foundation, Inc. - -This library is free software; you can redistribute it and/or -modify it under the terms of the GNU Library General Public -License as published by the Free Software Foundation; either -version 2 of the License, or (at your option) any later version. - -This library is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -Library General Public License for more details. - -You should have received a copy of the GNU Library General Public -License along with this library; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* - This does make sense only under WIN32. - Functions: - - popen() rewritten - - pclose() rewritten - - FIXME : - - exit code ? - - check leaks. -*/ - -#include <win32lib.h> -#include <errno.h> - -extern void free_cmd_pipe(char ***cmd_pipe, int nCmds); -extern char *quote_args(char **argv); - -#undef _DEBUG - -#ifdef _DEBUG -#define TRACE(x) x -#else -#define TRACE(x) -#endif - -#define IS_DIRECTORY_SEP(c) IS_DIR_SEP(c) - -struct _popen_elt { - FILE *f; /* File stream returned */ - HANDLE hp; /* Handle of associated process */ - struct _popen_elt *next; /* Next list element */ -}; - -static struct _popen_elt _z = { NULL, 0, &_z }; -static struct _popen_elt *_popen_list = &_z; - -static BOOL bCriticalSectionInitialized = FALSE; -CRITICAL_SECTION thePopenCriticalSection; - -void __cdecl -popen_cleanup(void) -{ - if (bCriticalSectionInitialized) { - DeleteCriticalSection(&thePopenCriticalSection); - } -} - -FILE * __cdecl win32_popen (const char *cmd, const char *mode) -{ - STARTUPINFO si; - PROCESS_INFORMATION pi; - FILE *f = NULL; - int fno, i; - HANDLE child_in, child_out; - HANDLE father_in, father_out; - HANDLE father_in_dup, father_out_dup; - HANDLE current_pid; - int binary_mode; - char *new_cmd = NULL, *app_name = NULL; - struct _popen_elt *new_process; - BOOL read_mode, write_mode; - char ***cmd_pipe; - int nCmds; - - /* Admittedly, the command interpreter will allways be found. */ - if (cmd == NULL) { - TRACE(fprintf(stderr, "popen: (null) command.\n")); - return NULL; - } - - - cmd_pipe = parse_cmdline(cmd, NULL, NULL, &nCmds); - - /* Allow only one command in the pipe */ - if (nCmds != 1) { - /* Failed to find the command or malformed cmd */ - TRACE(fprintf(stderr, "system: failed to find command.\n")); - return NULL; - } - - /* First time, allow to call the command interpretor */ - if (look_for_cmd(cmd_pipe[0][0], &app_name) == FALSE) { - /* releasing previous split */ - free_cmd_pipe(cmd_pipe, nCmds); - TRACE(fprintf(stderr, "look for command: %s not found, concatenating comspec\n", app_name)); - new_cmd = concatn(getenv("COMSPEC"), " /c ", cmd, NULL); - TRACE(fprintf(stderr, "new command is: %s\n", new_cmd)); - cmd_pipe = parse_cmdline(new_cmd, NULL, NULL, &nCmds); - /* We don't need it anymore */ - free(new_cmd); - if (look_for_cmd(cmd_pipe[0][0], &app_name) == FALSE) { - /* Failed to find the command or malformed cmd */ - TRACE(fprintf(stderr, "system: failed to find command.\n")); - return NULL; - } - } - - new_cmd = quote_args(cmd_pipe[0]); - - TRACE(fprintf(stderr, "popen: app_name = %s\n", app_name)); - TRACE(fprintf(stderr, "popen: cmd_line = %s\n", new_cmd)); - - current_pid = GetCurrentProcess(); - - ZeroMemory( &si, sizeof(STARTUPINFO) ); - si.cb = sizeof(STARTUPINFO); - si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW ; - si.wShowWindow = /* 0 */ SW_HIDE ; - si.hStdInput = GetStdHandle(STD_INPUT_HANDLE); - si.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE); - si.hStdError = GetStdHandle(STD_ERROR_HANDLE); - - binary_mode = (strchr(mode, 'b') ? _O_BINARY : _O_TEXT); - - read_mode = (strchr(mode, 'r') != 0); - write_mode = (strchr(mode, 'w') != 0); - - /* Opening the pipe for writing */ - if (write_mode) { - binary_mode |= _O_WRONLY; - if (CreatePipe(&child_in, &father_out, NULL, 0) == FALSE) { - fprintf(stderr, "popen: error CreatePipe\n"); - return NULL; - } - - if (DuplicateHandle(current_pid, child_in, - current_pid, &father_in_dup, - 0, TRUE, DUPLICATE_SAME_ACCESS) == FALSE) { - fprintf(stderr, "popen: error DuplicateHandle father_out\n"); - return NULL; - } - si.hStdInput = father_in_dup; - - CloseHandle(child_in); - fno = _open_osfhandle((long)father_out, binary_mode); - f = _fdopen(fno, mode); - i = setvbuf( f, NULL, _IONBF, 0 ); - } - /* Opening the pipe for reading */ - else if (read_mode) { - binary_mode |= _O_RDONLY; - if (CreatePipe(&father_in, &child_out, NULL, 0) == FALSE) { - fprintf(stderr, "popen: error CreatePipe\n"); - return NULL; - } - if (DuplicateHandle(current_pid, child_out, - current_pid, &father_out_dup, - 0, TRUE, DUPLICATE_SAME_ACCESS) == FALSE) { - fprintf(stderr, "popen: error DuplicateHandle father_in\n"); - return NULL; - } - CloseHandle(child_out); - si.hStdOutput = father_out_dup; - fno = _open_osfhandle((long)father_in, binary_mode); - f = _fdopen(fno, mode); - i = setvbuf( f, NULL, _IONBF, 0 ); - } - else { - fprintf(stderr, "popen: invalid mode %s\n", mode); - return NULL; - } - - /* creating child process */ - if (CreateProcess(app_name, /* pointer to name of executable module */ - new_cmd, /* pointer to command line string */ - NULL, /* pointer to process security attributes */ - NULL, /* pointer to thread security attributes */ - TRUE, /* handle inheritance flag */ - 0, /* creation flags */ - NULL, /* pointer to environment */ - NULL, /* pointer to current directory */ - &si, /* pointer to STARTUPINFO */ - &pi /* pointer to PROCESS_INFORMATION */ - ) == FALSE) { - fprintf(stderr, "popen: CreateProcess %x\n", GetLastError()); - return NULL; - } - - /* Only the process handle is needed, ignore errors */ - CloseHandle(pi.hThread); - - /* Closing the unnecessary part of the pipe */ - if (read_mode) { - CloseHandle(father_out_dup); - } - else if (write_mode) { - CloseHandle(father_in_dup); - } - - /* Add the pair (f, pi.hProcess) to the list */ - if ((new_process = malloc(sizeof(struct _popen_elt))) == NULL) { - fprintf (stderr, "popen: malloc(new_process) error\n"); - return NULL; - } - - if (! bCriticalSectionInitialized) { - InitializeCriticalSection(&thePopenCriticalSection); - atexit(popen_cleanup); - bCriticalSectionInitialized = TRUE; - } - - EnterCriticalSection(&thePopenCriticalSection); - - /* Saving the FILE * pointer, access key for retrieving the process - handle later on */ - new_process->f = f; - /* Saving the process handle */ - new_process->hp = pi.hProcess; - /* Linking it to the list of popen() processes */ - new_process->next = _popen_list; - _popen_list = new_process; - - LeaveCriticalSection(&thePopenCriticalSection); - - free_cmd_pipe(cmd_pipe, nCmds); - - if (new_cmd) free(new_cmd); - if (app_name) free(app_name); - - return f; -} - -int __cdecl win32_pclose (FILE *f) -{ - HANDLE h; - struct _popen_elt *p, *q; - int exit_code; - - EnterCriticalSection(&thePopenCriticalSection); - - /* Look for f as the access key in the linked list */ - for (q = NULL, p = _popen_list; - p != &_z && p->f != f; - q = p, p = p->next); - - /* remove the elt from the list if found */ - if (p != &_z) { - if (q != NULL) - q->next = p->next; - else - _popen_list = p->next; - /* remember the handle */ - h = p->hp; - /* free up the block */ - free(p); - } - - LeaveCriticalSection(&thePopenCriticalSection); - - if (p == &_z) { - fprintf(stderr, "pclose: error, file not found."); - return -1; - } - - /* Closing the FILE pointer */ - fclose(f); - - /* Waiting for the process to terminate */ - if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) { - fprintf(stderr, "pclose: error, process still active\n"); - return -1; - } - - /* retrieving the exit code */ - if (GetExitCodeProcess(h, &exit_code) == 0) { - fprintf(stderr, "pclose: can't get process exit code\n"); - return -1; - } - - /* Closing the process handle, this will cause the system to - remove the process from memory */ - if (CloseHandle(h) == FALSE) { - fprintf(stderr, "pclose: error closing process handle\n"); - return -1; - } - - return exit_code; -} |