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Fixed the command line.

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svn path=/trunk/; revision=2929
This commit is contained in:
Hartmut Birr 2002-05-07 22:33:07 +00:00
parent ad703f36f3
commit d05ba1b39e
1 changed files with 61 additions and 19 deletions
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80
reactos/lib/msvcrt/process/_system.c
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@ -1,7 +1,8 @@
/*
/* $Id: _system.c,v 1.2 2002/05/07 22:33:07 hbirr Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS system libraries
* FILE: lib/crtdll/process/system.c
* FILE: lib/msvcrt/process/system.c
* PURPOSE: Excutes a shell command
* PROGRAMER: Boudewijn Dekker
* UPDATE HISTORY:
@ -11,14 +12,17 @@
#include <msvcrt/stdlib.h>
#include <msvcrt/string.h>
#include <msvcrt/process.h>
#include <msvcrt/errno.h>
int system(const char *command)
{
char szCmdLine[MAX_PATH];
char *szComSpec=NULL;
char *szCmdLine = NULL;
char *szComSpec = NULL;
PROCESS_INFORMATION ProcessInformation;
STARTUPINFOA StartupInfo;
STARTUPINFO StartupInfo;
char *s;
BOOL result;
int nStatus;
@ -31,25 +35,50 @@ int system(const char *command)
if (szComSpec == NULL)
return 0;
else
{
free(szComSpec);
return -1;
}
}
// should return 127 or 0 ( MS ) if the shell is not found
// __set_errno(ENOENT);
if (szComSpec == NULL)
szComSpec = "cmd.exe";
{
szComSpec = strdup("cmd.exe");
if (szComSpec == NULL)
{
__set_errno(ENOMEM);
return -1;
}
}
strcpy(szCmdLine, " /C ");
s = max(strchr(szComSpec, '\\'), strchr(szComSpec, '/'));
if (s == NULL)
s = szComSpec;
else
s++;
strncat(szCmdLine, command, MAX_PATH-5);
szCmdLine = malloc(strlen(s) + 4 + strlen(command) + 1);
if (szCmdLine == NULL)
{
free (szComSpec);
__set_errno(ENOMEM);
return -1;
}
//check for a too long argument E2BIG
strcpy(szCmdLine, s);
s = strrchr(szCmdLine, '.');
if (s)
*s = 0;
strcat(szCmdLine, " /C ");
strcat(szCmdLine, command);
//command file has invalid format ENOEXEC
StartupInfo.cb = sizeof(STARTUPINFOA);
memset (&StartupInfo, 0, sizeof(STARTUPINFO));
StartupInfo.cb = sizeof(STARTUPINFO);
StartupInfo.lpReserved= NULL;
StartupInfo.dwFlags = 0;
StartupInfo.wShowWindow = SW_SHOWDEFAULT;
@ -63,17 +92,30 @@ int system(const char *command)
//SIGCHILD should be blocked aswell
if (CreateProcessA(szComSpec,szCmdLine,NULL,NULL,TRUE,CREATE_NEW_PROCESS_GROUP,NULL,NULL,&StartupInfo,&ProcessInformation) == FALSE)
{
return -1;
}
result = CreateProcessA(szComSpec,
szCmdLine,
NULL,
NULL,
TRUE,
0,
NULL,
NULL,
&StartupInfo,
&ProcessInformation);
free(szCmdLine);
free(szComSpec);
if (result == FALSE)
{
__set_errno(ENOEXEC);
return -1;
}
CloseHandle(ProcessInformation.hThread);
// system should wait untill the calling process is finished
_cwait(&nStatus,(int)ProcessInformation.hProcess,0);
// free the comspec [ if the COMSPEC == NULL provision is removed
// free(szComSpec);
CloseHandle(ProcessInformation.hProcess);
return nStatus;
}