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|
// WIN32.C
// (c) 1995 Microsoft Corporation. All rights reserved.
// Developed by hip communications inc., http://info.hip.com/info/
// Portions (c) 1993 Intergraph Corporation. All rights reserved.
// You may distribute under the terms of either the GNU General Public
// License or the Artistic License, as specified in the README file.
#define WIN32_LEAN_AND_MEAN
#define WIN32IO_IS_STDIO
#include <tchar.h>
#include <windows.h>
//#include "config.h"
#define PERLIO_NOT_STDIO 0
#if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO)
#define PerlIO FILE
#endif
#include "EXTERN.h"
#include "perl.h"
#include <fcntl.h>
#include <sys/stat.h>
#include <assert.h>
#include <string.h>
#include <stdarg.h>
#define CROAK croak
#define WARN warn
extern WIN32_IOSUBSYSTEM win32stdio;
__declspec(thread) PWIN32_IOSUBSYSTEM pIOSubSystem = &win32stdio;
//__declspec(thread) PWIN32_IOSUBSYSTEM pIOSubSystem = NULL;
BOOL ProbeEnv = FALSE;
DWORD Win32System;
char szShellPath[MAX_PATH+1];
char szPerlLibRoot[MAX_PATH+1];
HANDLE PerlDllHandle = INVALID_HANDLE_VALUE;
#define IsWin95() (Win32System == VER_PLATFORM_WIN32_WINDOWS)
#define IsWinNT() (Win32System == VER_PLATFORM_WIN32_NT)
void *SetIOSubSystem(void *p)
{
if (p) {
PWIN32_IOSUBSYSTEM pio = (PWIN32_IOSUBSYSTEM)p;
if (pio->signature_begin == 12345678L && pio->signature_end == 87654321L) {
PWIN32_IOSUBSYSTEM pold = pIOSubSystem;
pIOSubSystem = pio;
return pold;
}
}
else {
// re-assign our stuff
// pIOSubSystem = &win32stdio;
pIOSubSystem = NULL;
}
return pIOSubSystem;
}
char *win32PerlLibPath(void)
{
GetModuleFileName((PerlDllHandle == INVALID_HANDLE_VALUE)
? GetModuleHandle(NULL) : PerlDllHandle,
szPerlLibRoot,
sizeof(szPerlLibRoot));
*(strrchr(szPerlLibRoot, '\\')) = '\0';
strcat(szPerlLibRoot,"\\LIB");
return (szPerlLibRoot);
}
BOOL HasRedirection(char *ptr)
{
int inquote = 0;
char quote = '\0';
//
// Scan string looking for redirection (< or >) or pipe
// characters (|) that are not in a quoted string
//
while(*ptr)
{
switch(*ptr)
{
case '\'':
case '\"':
if(inquote)
{
if(quote == *ptr)
{
inquote = 0;
quote = '\0';
}
}
else
{
quote = *ptr;
inquote++;
}
break;
case '>':
case '<':
case '|':
if(!inquote)
return TRUE;
default:
break;
}
++ptr;
}
return FALSE;
}
// since the current process environment is being updated in util.c
// the library functions will get the correct environment
PerlIO *my_popen(char *cmd, char *mode)
{
#ifdef FIXCMD
#define fixcmd(x) {\
char *pspace = strchr((x),' ');\
if (pspace) {\
char *p = (x);\
while (p < pspace) {\
if (*p == '/') *p = '\\';\
p++;\
}\
}\
}
#else
#define fixcmd(x)
#endif
#ifndef PERLDLL
fixcmd(cmd);
return win32_popen(cmd, mode);
#else
/*
* There seems to be some problems for the _popen call in a DLL
* this trick at the moment seems to work but it is never test
* on NT yet
*
*/
# ifdef __cplusplus
#define EXT_C_FUNC extern "C"
# else
#define EXT_C_FUNC extern
# endif
EXT_C_FUNC int __cdecl _set_osfhnd(int fh, long value);
EXT_C_FUNC void __cdecl _lock_fhandle(int);
EXT_C_FUNC void __cdecl _unlock_fhandle(int);
BOOL fSuccess;
PerlIO *pf; // to store the _popen return value
int tm = 0; /* flag indicating tDllExport or binary mode */
int fhNeeded, fhInherited, fhDup;
int ineeded, iinherited;
DWORD dwDup;
int phdls[2]; /* I/O handles for pipe */
HANDLE hPIn,
hPOut,
hPErr,
hSaveStdin,
hSaveStdout,
hSaveStderr,
hPNeeded, hPInherited, hPDuped;
/* first check for errors in the arguments
*/
if ( (cmd == NULL) || (mode == NULL) || ((*mode != 'w') &&
(*mode != _T('r'))) )
goto error1;
if ( *(mode + 1) == _T('t') )
tm = _O_TEXT;
else if ( *(mode + 1) == _T('b') )
tm = _O_BINARY;
else tm = (*mode == 'w' ? _O_BINARY : _O_TEXT);
fixcmd(cmd);
if (&win32stdio != pIOSubSystem) return win32_popen(cmd, mode);
#ifdef EFG
if ( _pipe( phdls, 1024, tm ) == -1 )
#else
if ( win32_pipe( phdls, 1024, tm ) == -1 )
#endif
goto error1;
/* save the current situation */
hSaveStdin = GetStdHandle(STD_INPUT_HANDLE);
hSaveStdout = GetStdHandle(STD_OUTPUT_HANDLE);
hSaveStderr = GetStdHandle(STD_ERROR_HANDLE);
if (*mode == _T('w')) {
ineeded = 1;
dwDup = STD_INPUT_HANDLE;
iinherited = 0;
}
else {
ineeded = 0;
dwDup = STD_OUTPUT_HANDLE;
iinherited = 1;
}
fhNeeded = phdls[ineeded];
fhInherited = phdls[iinherited];
fSuccess = DuplicateHandle(GetCurrentProcess(),
(HANDLE) stolen_get_osfhandle(fhNeeded),
GetCurrentProcess(),
&hPNeeded,
0,
FALSE, /* not inherited */
DUPLICATE_SAME_ACCESS);
if (!fSuccess) goto error2;
fhDup = stolen_open_osfhandle((long) hPNeeded, tm);
win32_dup2(fhDup, fhNeeded);
win32_close(fhDup);
#ifdef AAA
/* Close the Out pipe, child won't need it */
hPDuped = (HANDLE) stolen_get_osfhandle(fhNeeded);
_lock_fhandle(fhNeeded);
_set_osfhnd(fhNeeded, (long) hPNeeded); // put in ours duplicated one
_unlock_fhandle(fhNeeded);
CloseHandle(hPDuped); // close the handle first
#endif
if (!SetStdHandle(dwDup, (HANDLE) stolen_get_osfhandle(fhInherited))) goto error2;
//
// make sure the child see the same stderr as the calling program
//
//
if (!SetStdHandle(STD_ERROR_HANDLE, (HANDLE) stolen_get_osfhandle(win32_fileno(win32_stderr())))) goto error2;
pf = win32_popen(cmd, mode); // ask _popen to do the job
/* restore to where we were */
SetStdHandle(STD_INPUT_HANDLE, hSaveStdin);
SetStdHandle(STD_OUTPUT_HANDLE, hSaveStdout);
SetStdHandle(STD_ERROR_HANDLE, hSaveStderr);
/* we don't need it any more, that's for the child */
win32_close(fhInherited);
if (NULL == pf) {
// something wrong
win32_close(fhNeeded);
goto error1;
}
else {
/*
* here we steal the file handle in pf and stuff ours in
*
*/
win32_dup2(fhNeeded, win32_fileno(pf));
win32_close(fhNeeded);
}
return (pf);
error2:
win32_close(fhNeeded);
win32_close(fhInherited);
error1:
return (NULL);
#endif
}
long my_pclose(PerlIO *fp)
{
return win32_pclose(fp);
}
static void IdOS(void)
{
OSVERSIONINFO osver;
memset(&osver, 0, sizeof(OSVERSIONINFO));
osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&osver);
Win32System = osver.dwPlatformId;
return;
}
static char *GetShell(void)
{
static char* szWin95ShellEntry = "Win95Shell";
static char* szWin95DefaultShell = "Cmd32.exe";
static char* szWinNTDefaultShell = "cmd.exe";
if (!ProbeEnv) {
IdOS(), ProbeEnv = TRUE;
if (IsWin95()) {
strcpy(szShellPath, szWin95DefaultShell);
}
else {
strcpy(szShellPath, szWinNTDefaultShell);
}
}
return szShellPath;
}
int do_aspawn(void* really, void** mark, void** arglast)
{
char **argv;
char *strPtr;
char *cmd;
int status;
unsigned int length;
int index = 0;
SV *sv = (SV*)really;
SV** pSv = (SV**)mark;
New(1110, argv, (arglast - mark) + 3, char*);
if(sv != Nullsv)
{
cmd = SvPV(sv, length);
}
else
{
cmd = GetShell();
argv[index++] = "/c";
}
while(pSv <= (SV**)arglast)
{
sv = *pSv++;
strPtr = SvPV(sv, length);
if(strPtr != NULL && *strPtr != '\0')
argv[index++] = strPtr;
}
argv[index++] = 0;
status = win32_spawnvpe(P_WAIT, cmd, (const char* const*)argv, (const char* const*)environ);
Safefree(argv);
// set statusvalue the perl variable $?
return (statusvalue = status*256);
}
int do_spawn(char *cmd)
{
char **a;
char *s;
char **argv;
int status = -1;
BOOL needToTry = TRUE;
char *shell, *cmd2;
/* save an extra exec if possible */
shell = GetShell();
/* see if there are shell metacharacters in it */
if(!HasRedirection(cmd))
{
New(1102,argv, strlen(cmd) / 2 + 2, char*);
New(1103,cmd2, strlen(cmd) + 1, char);
strcpy(cmd2, cmd);
a = argv;
for(s = cmd2; *s;)
{
while(*s && isspace(*s)) s++;
if(*s)
*(a++) = s;
while(*s && !isspace(*s)) s++;
if(*s)
*s++ = '\0';
}
*a = Nullch;
if(argv[0])
{
status = win32_spawnvpe(P_WAIT, argv[0], (const char* const*)argv, (const char* const*)environ);
if(status != -1 || errno == 0)
needToTry = FALSE;
}
Safefree(argv);
Safefree(cmd2);
}
if(needToTry)
{
status = win32_spawnle(P_WAIT, shell, shell, "/c", cmd, (char*)0, environ);
}
// set statusvalue the perl variable $?
return (statusvalue = status*256);
}
#define PATHLEN 1024
// The idea here is to read all the directory names into a string table
// (separated by nulls) and when one of the other dir functions is called
// return the pointer to the current file name.
DIR *opendir(char *filename)
{
DIR *p;
long len;
long idx;
char scannamespc[PATHLEN];
char *scanname = scannamespc;
struct stat sbuf;
WIN32_FIND_DATA FindData;
HANDLE fh;
// char root[_MAX_PATH];
// char volname[_MAX_PATH];
// DWORD serial, maxname, flags;
// BOOL downcase;
// char *dummy;
// check to see if filename is a directory
if(stat(filename, &sbuf) < 0 || sbuf.st_mode & _S_IFDIR == 0)
{
return NULL;
}
// get the file system characteristics
// if(GetFullPathName(filename, MAX_PATH, root, &dummy))
// {
// if(dummy = strchr(root, '\\'))
// *++dummy = '\0';
// if(GetVolumeInformation(root, volname, MAX_PATH, &serial, &maxname, &flags, 0, 0))
// {
// downcase = !(flags & FS_CASE_IS_PRESERVED);
// }
// }
// else
// {
// downcase = TRUE;
// }
// Get us a DIR structure
Newz(1501, p, 1, DIR);
if(p == NULL)
return NULL;
// Create the search pattern
strcpy(scanname, filename);
if(index("/\\", *(scanname + strlen(scanname) - 1)) == NULL)
strcat(scanname, "/*");
else
strcat(scanname, "*");
// do the FindFirstFile call
fh = FindFirstFile(scanname, &FindData);
if(fh == INVALID_HANDLE_VALUE)
{
return NULL;
}
// now allocate the first part of the string table for the filenames that we find.
idx = strlen(FindData.cFileName)+1;
New(1502, p->start, idx, char);
if(p->start == NULL)
{
CROAK("opendir: malloc failed!\n");
}
strcpy(p->start, FindData.cFileName);
// if(downcase)
// strlwr(p->start);
p->nfiles++;
// loop finding all the files that match the wildcard
// (which should be all of them in this directory!).
// the variable idx should point one past the null terminator
// of the previous string found.
//
while(FindNextFile(fh, &FindData))
{
len = strlen(FindData.cFileName);
// bump the string table size by enough for the
// new name and it's null terminator
Renew(p->start, idx+len+1, char);
if(p->start == NULL)
{
CROAK("opendir: malloc failed!\n");
}
strcpy(&p->start[idx], FindData.cFileName);
// if(downcase)
// strlwr(&p->start[idx]);
p->nfiles++;
idx += len+1;
}
FindClose(fh);
p->size = idx;
p->curr = p->start;
return p;
}
// Readdir just returns the current string pointer and bumps the
// string pointer to the nDllExport entry.
struct direct *readdir(DIR *dirp)
{
int len;
static int dummy = 0;
if(dirp->curr)
{ // first set up the structure to return
len = strlen(dirp->curr);
strcpy(dirp->dirstr.d_name, dirp->curr);
dirp->dirstr.d_namlen = len;
// Fake an inode
dirp->dirstr.d_ino = dummy++;
// Now set up for the nDllExport call to readdir
dirp->curr += len + 1;
if(dirp->curr >= (dirp->start + dirp->size))
{
dirp->curr = NULL;
}
return &(dirp->dirstr);
}
else
return NULL;
}
// Telldir returns the current string pointer position
long telldir(DIR *dirp)
{
return (long) dirp->curr;
}
// Seekdir moves the string pointer to a previously saved position (Saved by telldir).
void seekdir(DIR *dirp, long loc)
{
dirp->curr = (char *)loc;
}
// Rewinddir resets the string pointer to the start
void rewinddir(DIR *dirp)
{
dirp->curr = dirp->start;
}
// free the memory allocated by opendir
int closedir(DIR *dirp)
{
Safefree(dirp->start);
Safefree(dirp);
return 1;
}
//
// various stubs
//
// Ownership
//
// Just pretend that everyone is a superuser. NT will let us know if
// we don\'t really have permission to do something.
//
#define ROOT_UID ((uid_t)0)
#define ROOT_GID ((gid_t)0)
uid_t getuid(void)
{
return ROOT_UID;
}
uid_t geteuid(void)
{
return ROOT_UID;
}
gid_t getgid(void)
{
return ROOT_GID;
}
gid_t getegid(void)
{
return ROOT_GID;
}
int setuid(uid_t uid)
{
return (uid == ROOT_UID ? 0 : -1);
}
int setgid(gid_t gid)
{
return (gid == ROOT_GID ? 0 : -1);
}
//
// pretended kill
//
int kill(int pid, int sig)
{
HANDLE hProcess= OpenProcess(PROCESS_ALL_ACCESS, TRUE, pid);
if (hProcess == NULL) {
CROAK("kill process failed!\n");
}
else {
if (!TerminateProcess(hProcess, sig)) CROAK("kill process failed!\n");
CloseHandle(hProcess);
}
return 0;
}
//
// File system stuff
//
int ioctl(int i, unsigned int u, char *data)
{
CROAK("ioctl not implemented!\n");
return -1;
}
unsigned int sleep(unsigned int t)
{
Sleep(t*1000);
return 0;
}
#undef rename
int myrename(char *OldFileName, char *newname)
{
if(_access(newname, 0) != -1)
{ // file exists
_unlink(newname);
}
return rename(OldFileName, newname);
}
int win32_stat(const char *path, struct stat *buffer)
{
char t[MAX_PATH];
const char *p = path;
int l = strlen(path);
if (l > 1) {
switch(path[l - 1]) {
case '\\':
case '/':
if (path[l - 2] != ':') {
strncpy(t, path, l - 1);
t[l - 1] = 0;
p = t;
};
}
}
return stat(p, buffer);
}
#undef times
int mytimes(struct tms *timebuf)
{
clock_t t = clock();
timebuf->tms_utime = t;
timebuf->tms_stime = 0;
timebuf->tms_cutime = 0;
timebuf->tms_cstime = 0;
return 0;
}
#undef alarm
unsigned int myalarm(unsigned int sec)
{
// we warn the usuage of alarm function
if (sec != 0)
WARN("dummy function alarm called, program might not function as expected\n");
return 0;
}
//
// redirected io subsystem for all XS modules
//
//
DllExport int * win32_errno(void)
{
return (pIOSubSystem->pfnerrno());
}
// the rest are the remapped stdio routines
DllExport FILE *win32_stderr(void)
{
return (pIOSubSystem->pfnstderr());
}
DllExport FILE *win32_stdin(void)
{
return (pIOSubSystem->pfnstdin());
}
DllExport FILE *win32_stdout()
{
return (pIOSubSystem->pfnstdout());
}
DllExport int win32_ferror(FILE *fp)
{
return (pIOSubSystem->pfnferror(fp));
}
DllExport int win32_feof(FILE *fp)
{
return (pIOSubSystem->pfnfeof(fp));
}
//
// Since the errors returned by the socket error function
// WSAGetLastError() are not known by the library routine strerror
// we have to roll our own.
//
__declspec(thread) char strerror_buffer[512];
DllExport char *win32_strerror(int e)
{
extern int sys_nerr;
DWORD source = 0;
if(e < 0 || e > sys_nerr)
{
if(e < 0)
e = GetLastError();
if(FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, &source, e, 0, strerror_buffer, sizeof(strerror_buffer), NULL) == 0)
strcpy(strerror_buffer, "Unknown Error");
return strerror_buffer;
}
return pIOSubSystem->pfnstrerror(e);
}
DllExport int win32_fprintf(FILE *fp, const char *format, ...)
{
va_list marker;
va_start(marker, format); /* Initialize variable arguments. */
return (pIOSubSystem->pfnvfprintf(fp, format, marker));
}
DllExport int win32_printf(const char *format, ...)
{
va_list marker;
va_start(marker, format); /* Initialize variable arguments. */
return (pIOSubSystem->pfnvprintf(format, marker));
}
DllExport int win32_vfprintf(FILE *fp, const char *format, va_list args)
{
return (pIOSubSystem->pfnvfprintf(fp, format, args));
}
DllExport size_t win32_fread(void *buf, size_t size, size_t count, FILE *fp)
{
return pIOSubSystem->pfnfread(buf, size, count, fp);
}
DllExport size_t win32_fwrite(const void *buf, size_t size, size_t count, FILE *fp)
{
return pIOSubSystem->pfnfwrite(buf, size, count, fp);
}
DllExport FILE *win32_fopen(const char *filename, const char *mode)
{
if (stricmp(filename, "/dev/null")==0) return pIOSubSystem->pfnfopen("NUL", mode);
return pIOSubSystem->pfnfopen(filename, mode);
}
DllExport FILE *win32_fdopen( int handle, const char *mode)
{
return pIOSubSystem->pfnfdopen(handle, mode);
}
DllExport FILE *win32_freopen( const char *path, const char *mode, FILE *stream)
{
if (stricmp(path, "/dev/null")==0) return pIOSubSystem->pfnfreopen("NUL", mode, stream);
return pIOSubSystem->pfnfreopen(path, mode, stream);
}
DllExport int win32_fclose(FILE *pf)
{
return pIOSubSystem->pfnfclose(pf);
}
DllExport int win32_fputs(const char *s,FILE *pf)
{
return pIOSubSystem->pfnfputs(s, pf);
}
DllExport int win32_fputc(int c,FILE *pf)
{
return pIOSubSystem->pfnfputc(c,pf);
}
DllExport int win32_ungetc(int c,FILE *pf)
{
return pIOSubSystem->pfnungetc(c,pf);
}
DllExport int win32_getc(FILE *pf)
{
return pIOSubSystem->pfngetc(pf);
}
DllExport int win32_fileno(FILE *pf)
{
return pIOSubSystem->pfnfileno(pf);
}
DllExport void win32_clearerr(FILE *pf)
{
pIOSubSystem->pfnclearerr(pf);
return;
}
DllExport int win32_fflush(FILE *pf)
{
return pIOSubSystem->pfnfflush(pf);
}
DllExport long win32_ftell(FILE *pf)
{
return pIOSubSystem->pfnftell(pf);
}
DllExport int win32_fseek(FILE *pf,long offset,int origin)
{
return pIOSubSystem->pfnfseek(pf, offset, origin);
}
DllExport int win32_fgetpos(FILE *pf,fpos_t *p)
{
return pIOSubSystem->pfnfgetpos(pf, p);
}
DllExport int win32_fsetpos(FILE *pf,const fpos_t *p)
{
return pIOSubSystem->pfnfsetpos(pf, p);
}
DllExport void win32_rewind(FILE *pf)
{
pIOSubSystem->pfnrewind(pf);
return;
}
DllExport FILE* win32_tmpfile(void)
{
return pIOSubSystem->pfntmpfile();
}
DllExport void win32_abort(void)
{
pIOSubSystem->pfnabort();
return;
}
DllExport int win32_fstat(int fd,struct stat *bufptr)
{
return pIOSubSystem->pfnfstat(fd,bufptr);
}
DllExport int win32_pipe(int *pfd, unsigned int size, int mode)
{
return pIOSubSystem->pfnpipe(pfd, size, mode);
}
DllExport FILE* win32_popen(const char *command, const char *mode)
{
return pIOSubSystem->pfnpopen(command, mode);
}
DllExport int win32_pclose(FILE *pf)
{
return pIOSubSystem->pfnpclose(pf);
}
DllExport int win32_setmode(int fd, int mode)
{
return pIOSubSystem->pfnsetmode(fd, mode);
}
DllExport int win32_open(const char *path, int flag, ...)
{
va_list ap;
int pmode;
va_start(ap, flag);
pmode = va_arg(ap, int);
va_end(ap);
if (stricmp(path, "/dev/null")==0) return pIOSubSystem->pfnopen("NUL", flag, pmode);
return pIOSubSystem->pfnopen(path,flag,pmode);
}
DllExport int win32_close(int fd)
{
return pIOSubSystem->pfnclose(fd);
}
DllExport int win32_dup(int fd)
{
return pIOSubSystem->pfndup(fd);
}
DllExport int win32_dup2(int fd1,int fd2)
{
return pIOSubSystem->pfndup2(fd1,fd2);
}
DllExport int win32_read(int fd, char *buf, unsigned int cnt)
{
return pIOSubSystem->pfnread(fd, buf, cnt);
}
DllExport int win32_write(int fd, const char *buf, unsigned int cnt)
{
return pIOSubSystem->pfnwrite(fd, buf, cnt);
}
DllExport int win32_spawnvpe(int mode, const char *cmdname, const char *const *argv, const char *const *envp)
{
return pIOSubSystem->pfnspawnvpe(mode, cmdname, argv, envp);
}
DllExport int win32_spawnle(int mode, const char *cmdname, const char *arglist,...)
{
const char* const* envp;
const char* const* argp;
argp = &arglist;
while (*argp++) ;
return pIOSubSystem->pfnspawnvpe(mode, cmdname, &arglist, argp);
}
int stolen_open_osfhandle(long handle, int flags)
{
return pIOSubSystem->pfn_open_osfhandle(handle, flags);
}
long stolen_get_osfhandle(int fd)
{
return pIOSubSystem->pfn_get_osfhandle(fd);
}
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