2 * msvcrt.dll spawn/exec functions
4 * Copyright 1996,1998 Marcus Meissner
5 * Copyright 1996 Jukka Iivonen
6 * Copyright 1997,2000 Uwe Bonnes
7 * Copyright 2000 Jon Griffiths
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * -File handles need some special handling. Sometimes children get
25 * open file handles, sometimes not. The docs are confusing
26 * -No check for maximum path/argument/environment size is done
33 #include "msvcrt/errno.h"
35 #include "msvcrt/process.h"
36 #include "msvcrt/stdlib.h"
37 #include "msvcrt/string.h"
39 #include "wine/debug.h"
41 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
43 /* FIXME: Check file extensions for app to run */
44 static const unsigned int EXE = 'e' << 16 | 'x' << 8 | 'e';
45 static const unsigned int BAT = 'b' << 16 | 'a' << 8 | 't';
46 static const unsigned int CMD = 'c' << 16 | 'm' << 8 | 'd';
47 static const unsigned int COM = 'c' << 16 | 'o' << 8 | 'm';
49 /* INTERNAL: Spawn a child process */
50 static int msvcrt_spawn(int flags, const char* exe, char* cmdline, char* env)
53 PROCESS_INFORMATION pi;
55 if (sizeof(HANDLE) != sizeof(int))
56 WARN("This call is unsuitable for your architecture\n");
58 if ((unsigned)flags > _P_DETACH)
60 *MSVCRT__errno() = MSVCRT_EINVAL;
64 FIXME(":must dup/kill streams for child process\n");
66 memset(&si, 0, sizeof(si));
69 if (!CreateProcessA(exe, cmdline, NULL, NULL, TRUE,
70 flags == _P_DETACH ? DETACHED_PROCESS : 0,
73 MSVCRT__set_errno(GetLastError());
80 WaitForSingleObject(pi.hProcess,-1); /* wait forvever */
81 GetExitCodeProcess(pi.hProcess,&pi.dwProcessId);
82 CloseHandle(pi.hProcess);
83 CloseHandle(pi.hThread);
84 return (int)pi.dwProcessId;
86 CloseHandle(pi.hProcess);
91 CloseHandle(pi.hThread);
92 return (int)pi.hProcess;
96 return -1; /* can't reach here */
99 /* INTERNAL: Convert argv list to a single 'delim'-separated string, with an
100 * extra '\0' to terminate it
102 static char* msvcrt_argvtos(const char* const* arg, char delim)
104 const char* const* a;
111 /* Return NULL for an empty environment list */
120 size += strlen(*a) + 1;
124 ret = (char*)MSVCRT_malloc(size + 1);
133 int len = strlen(*a);
134 memcpy(ret+size,*a,len);
143 /* INTERNAL: Convert va_list to a single 'delim'-separated string, with an
144 * extra '\0' to terminate it
146 static char* msvcrt_valisttos(const char* arg0, va_list alist, char delim)
155 va_copy(alist2,alist);
158 __va_copy(alist2,alist);
166 /* Return NULL for an empty environment list */
174 size += strlen(arg) + 1;
175 arg = va_arg(alist, char*);
176 } while (arg != NULL);
178 ret = (char*)MSVCRT_malloc(size + 1);
186 int len = strlen(arg);
190 arg = va_arg(alist2, char*);
191 } while (arg != NULL);
196 /*********************************************************************
199 int _cwait(int *status, int pid, int action)
201 HANDLE hPid = (HANDLE)pid;
204 action = action; /* Remove warning */
206 if (!WaitForSingleObject(hPid, -1)) /* wait forever */
211 GetExitCodeProcess(hPid, &stat);
216 doserrno = GetLastError();
218 if (doserrno == ERROR_INVALID_HANDLE)
220 *MSVCRT__errno() = MSVCRT_ECHILD;
221 *__doserrno() = doserrno;
224 MSVCRT__set_errno(doserrno);
226 return status ? *status = -1 : -1;
229 /*********************************************************************
232 * Like on Windows, this function does not handle arguments with spaces
235 int _execl(const char* name, const char* arg0, ...)
242 args = msvcrt_valisttos(arg0, ap, ' ');
245 ret = msvcrt_spawn(_P_OVERLAY, name, args, NULL);
251 /*********************************************************************
254 * Like on Windows, this function does not handle arguments with spaces
257 int _execlp(const char* name, const char* arg0, ...)
262 char fullname[MAX_PATH];
264 _searchenv(name, "PATH", fullname);
267 args = msvcrt_valisttos(arg0, ap, ' ');
270 ret = msvcrt_spawn(_P_OVERLAY, fullname[0] ? fullname : name, args, NULL);
276 /*********************************************************************
279 * Like on Windows, this function does not handle arguments with spaces
282 int _execv(const char* name, char* const* argv)
284 return _spawnve(_P_OVERLAY, name, (const char* const*) argv, NULL);
287 /*********************************************************************
290 * Like on Windows, this function does not handle arguments with spaces
293 int _execve(const char* name, char* const* argv, const char* const* envv)
295 return _spawnve(_P_OVERLAY, name, (const char* const*) argv, envv);
298 /*********************************************************************
299 * _execvpe (MSVCRT.@)
301 * Like on Windows, this function does not handle arguments with spaces
304 int _execvpe(const char* name, char* const* argv, const char* const* envv)
306 char fullname[MAX_PATH];
308 _searchenv(name, "PATH", fullname);
309 return _spawnve(_P_OVERLAY, fullname[0] ? fullname : name,
310 (const char* const*) argv, envv);
313 /*********************************************************************
316 * Like on Windows, this function does not handle arguments with spaces
319 int _execvp(const char* name, char* const* argv)
321 return _execvpe(name, argv, NULL);
324 /*********************************************************************
327 * Like on Windows, this function does not handle arguments with spaces
330 int _spawnl(int flags, const char* name, const char* arg0, ...)
337 args = msvcrt_valisttos(arg0, ap, ' ');
340 ret = msvcrt_spawn(flags, name, args, NULL);
346 /*********************************************************************
347 * _spawnlp (MSVCRT.@)
349 * Like on Windows, this function does not handle arguments with spaces
352 int _spawnlp(int flags, const char* name, const char* arg0, ...)
357 char fullname[MAX_PATH];
359 _searchenv(name, "PATH", fullname);
362 args = msvcrt_valisttos(arg0, ap, ' ');
365 ret = msvcrt_spawn(flags, fullname[0] ? fullname : name, args, NULL);
371 /*********************************************************************
372 * _spawnve (MSVCRT.@)
374 * Like on Windows, this function does not handle arguments with spaces
377 int _spawnve(int flags, const char* name, const char* const* argv,
378 const char* const* envv)
380 char * args = msvcrt_argvtos(argv,' ');
381 char * envs = msvcrt_argvtos(envv,0);
382 const char *fullname = name;
385 FIXME(":not translating name %s to locate program\n",fullname);
386 TRACE(":call (%s), params (%s), env (%s)\n",name,args,envs?"Custom":"Null");
390 ret = msvcrt_spawn(flags, fullname, args, envs);
399 /*********************************************************************
402 * Like on Windows, this function does not handle arguments with spaces
405 int _spawnv(int flags, const char* name, const char* const* argv)
407 return _spawnve(flags, name, argv, NULL);
410 /*********************************************************************
411 * _spawnvpe (MSVCRT.@)
413 * Like on Windows, this function does not handle arguments with spaces
416 int _spawnvpe(int flags, const char* name, const char* const* argv,
417 const char* const* envv)
419 char fullname[MAX_PATH];
420 _searchenv(name, "PATH", fullname);
421 return _spawnve(flags, fullname[0] ? fullname : name, argv, envv);
424 /*********************************************************************
425 * _spawnvp (MSVCRT.@)
427 * Like on Windows, this function does not handle arguments with spaces
430 int _spawnvp(int flags, const char* name, const char* const* argv)
432 return _spawnvpe(flags, name, argv, NULL);
435 /*********************************************************************
438 int MSVCRT_system(const char* cmd)
443 /* Make a writable copy for CreateProcess */
444 cmdcopy=_strdup(cmd);
445 /* FIXME: should probably launch cmd interpreter in COMSPEC */
446 res=msvcrt_spawn(_P_WAIT, NULL, cmdcopy, NULL);
447 MSVCRT_free(cmdcopy);
451 /*********************************************************************
452 * _loaddll (MSVCRT.@)
454 int _loaddll(const char* dllname)
456 return (int)LoadLibraryA(dllname);
459 /*********************************************************************
460 * _unloaddll (MSVCRT.@)
462 int _unloaddll(int dll)
464 if (FreeLibrary((HMODULE)dll))
468 int err = GetLastError();
469 MSVCRT__set_errno(err);