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mc/pc/util_nt.c

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/* Various utilities - NT versions
Copyright (C) 1994, 1995, 1996 the Free Software Foundation.
Written 1994, 1995, 1996 by:
Juan Grigera, Miguel de Icaza, Janne Kukonlehto, Dugan Porter,
Jakub Jelinek, Mauricio Plaza.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <config.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <io.h>
#include <fcntl.h>
#include <signal.h> /* my_system */
#include <limits.h> /* INT_MAX */
#include <errno.h>
#include <sys/time.h> /* select: timeout */
#include <sys/param.h>
#include <sys/stat.h>
#include <stdarg.h>
#include <process.h>
#include "../src/fs.h"
#include "../src/util.h"
#include "util_win32.h"
#ifdef __BORLANDC__
#define ENOTEMPTY ERROR_DIR_NOT_EMPTY
#endif
char *get_owner (int uid)
{
return "none";
}
char *get_group (int gid)
{
return "none";
}
/* Pipes are guaranteed to be able to hold at least 4096 bytes */
/* More than that would be unportable */
#define MAX_PIPE_SIZE 4096
static int error_pipe[2]; /* File descriptors of error pipe */
static int old_error; /* File descriptor of old standard error */
/* Creates a pipe to hold standard error for a later analysis. */
/* The pipe can hold 4096 bytes. Make sure no more is written */
/* or a deadlock might occur. */
void open_error_pipe (void)
{
if (pipe (error_pipe) < 0){
message (0, " Warning ", " Pipe failed ");
}
old_error = dup (2);
if(old_error < 0 || close(2) || dup (error_pipe[1]) != 2){
message (0, " Warning ", " Dup failed ");
close (error_pipe[0]);
close (error_pipe[1]);
}
close (error_pipe[1]);
}
void close_error_pipe (int error, char *text)
{
char *title;
char msg[MAX_PIPE_SIZE];
int len = 0;
if (error)
title = " Error ";
else
title = " Warning ";
if (old_error >= 0){
close (2);
dup (old_error);
close (old_error);
len = read (error_pipe[0], msg, MAX_PIPE_SIZE);
if (len >= 0)
msg[len] = 0;
close (error_pipe[0]);
}
if (error < 0)
return; /* Just ignore error message */
if (text == NULL){
if (len == 0) return; /* Nothing to show */
/* Show message from pipe */
message (error, title, msg);
} else {
/* Show given text and possible message from pipe */
message (error, title, " %s \n %s ", text, msg);
}
}
void check_error_pipe (void)
{
char error[MAX_PIPE_SIZE];
int len = 0;
if (old_error >= 0){
while (len < MAX_PIPE_SIZE)
{
int rvalue;
rvalue = -1; // read (error_pipe[0], error + len, 1);
if (rvalue <= 0)
break;
len ++;
}
error[len] = 0;
close (error_pipe[0]);
}
if (len > 0)
message (0, " Warning ", error);
}
int my_system (int as_shell_command, const char *shell, const char *command)
{
int status = 0;
#if 0
/* .ado: temp. turn out */
if (as_shell_command) {
/* It is only the shell, /c will not work */
if (command)
spawnlp (P_WAIT, shell, shell, "/c", command, (char *) 0);
else
spawnlp (P_WAIT, shell, (char *) 0);
} else
spawnl (P_WAIT, shell, shell, command, (char *) 0);
if (win32_GetPlatform() == OS_Win95) {
SetConsoleTitle ("GNU Midnight Commander"); /* title is gone after spawn... */
}
#endif
if (as_shell_command) {
if (!access(command, 0)) {
switch(win32_GetEXEType (shell)) {
case EXE_win16: /* Windows 3.x archive or OS/2 */
case EXE_win32GUI: /* NT or Chicago GUI API */
spawnlp (P_NOWAIT, shell, shell, "/c", command, (char *) 0); /* don't wait for GUI programs to end */
break;
case EXE_otherCUI: /* DOS COM, MZ, ZM, Phar Lap */
case EXE_win32CUI: /* NT or Chicago Console API, also OS/2 */
case EXE_Unknown:
default:
spawnlp (P_WAIT, shell, shell, "/c", command, (char *) 0);
break;
}
}
else
spawnlp (P_WAIT, shell, shell, "/c", command, (char *) 0);
}
else
spawnl (P_WAIT, shell, shell, command, (char *) 0);
if (win32_GetPlatform() == OS_Win95) {
SetConsoleTitle ("GNU Midnight Commander"); /* title is gone after spawn... */
}
return status;
}
/* get_default_shell
Get the default shell for the current hardware platform
*/
char* get_default_shell()
{
if (win32_GetPlatform() == OS_WinNT)
return "cmd.exe";
else
return "command.com";
}
char *tilde_expand (char *directory)
{
return strdup (directory);
}
/* sleep: Call Windows API.
Can't do simple define. That would need <windows.h> in every source
*/
#ifndef __EMX__
void sleep(unsigned long dwMiliSecs)
{
Sleep(dwMiliSecs);
}
#endif
/* Canonicalize path, and return a new path. Do everything in situ.
The new path differs from path in:
Multiple `/'s are collapsed to a single `/'.
Leading `./'s and trailing `/.'s are removed.
Trailing `/'s are removed.
Non-leading `../'s and trailing `..'s are handled by removing
portions of the path. */
char *canonicalize_pathname (char *path)
{
int i, start;
char stub_char;
stub_char = (*path == PATH_SEP) ? PATH_SEP : '.';
/* Walk along path looking for things to compact. */
i = 0;
for (;;) {
if (!path[i])
break;
while (path[i] && path[i] != PATH_SEP)
i++;
start = i++;
/* If we didn't find any slashes, then there is nothing left to do. */
if (!path[start])
break;
/* Handle multiple `/'s in a row. */
while (path[i] == PATH_SEP)
i++;
if ((start + 1) != i) {
strcpy (path + start + 1, path + i);
i = start + 1;
}
/* Handle backquoted `/'. */
if (start > 0 && path[start - 1] == '\\')
continue;
/* Check for trailing `/'. */
if (start && !path[i]) {
zero_last:
path[--i] = '\0';
break;
}
/* Check for `../', `./' or trailing `.' by itself. */
if (path[i] == '.') {
/* Handle trailing `.' by itself. */
if (!path[i + 1])
goto zero_last;
/* Handle `./'. */
if (path[i + 1] == PATH_SEP) {
strcpy (path + i, path + i + 1);
i = start;
continue;
}
/* Handle `../' or trailing `..' by itself.
Remove the previous ?/ part with the exception of
../, which we should leave intact. */
if (path[i + 1] == '.' && (path[i + 2] == PATH_SEP || !path[i + 2])) {
while (--start > -1 && path[start] != PATH_SEP);
if (!strncmp (path + start + 1, "../", 3))
continue;
strcpy (path + start + 1, path + i + 2);
i = start;
continue;
}
}
}
if (!*path) {
*path = stub_char;
path[1] = '\0';
}
return path;
}
#ifndef USE_VFS
/*
int mc_rmdir (char *path);
Fix for Win95 UGLY BUG in rmdir: it will return ENOACCESS instead
of ENOTEMPTY.
*/
int mc_rmdir (char *path)
{
if (win32_GetPlatform() == OS_Win95) {
if (rmdir(path)) {
SetLastError (ERROR_DIR_NOT_EMPTY);
#ifndef __EMX__
/* FIXME: We are always saying the same thing! */
_doserrno = ERROR_DIR_NOT_EMPTY;
#endif
errno = ENOTEMPTY;
return -1;
} else
return 0;
}
else
return rmdir(path); /* No trouble in Windows NT */
}
static int conv_nt_unx_rc(int rc)
{
int errCode;
switch (rc) {
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND:
case ERROR_TOO_MANY_OPEN_FILES:
errCode = ENOENT;
break;
case ERROR_INVALID_HANDLE:
case ERROR_ARENA_TRASHED:
case ERROR_ACCESS_DENIED:
case ERROR_INVALID_ACCESS:
case ERROR_WRITE_PROTECT:
case ERROR_WRITE_FAULT:
case ERROR_READ_FAULT:
case ERROR_SHARING_VIOLATION:
errCode = EACCES;
break;
case ERROR_NOT_ENOUGH_MEMORY:
errCode = ENOMEM;
break;
case ERROR_INVALID_BLOCK:
case ERROR_INVALID_FUNCTION:
case ERROR_INVALID_DRIVE:
errCode = ENODEV;
break;
case ERROR_CURRENT_DIRECTORY:
errCode = ENOTDIR;
break;
case ERROR_NOT_READY:
errCode = EINVAL;
break;
default:
errCode = EINVAL;
break;
} /* endswitch */
return errCode;
}
/*
int mc_unlink (char *pathName)
For Windows 95 and NT, files should be able to be deleted even
if they don't have write-protection. We should build a question box
like: Delete anyway? Yes <No> All
*/
int mc_unlink (char *pathName)
{
char *fileName;
char *trunced_name;
static int erase_all = 0;
BOOL rc;
DWORD returnError;
rc = DeleteFile(pathName);
returnError = GetLastError();
if ((rc == FALSE) && (returnError == ERROR_ACCESS_DENIED)) {
int result;
if (!erase_all) {
errno = conv_nt_unx_rc(returnError);
trunced_name = name_trunc(pathName, 30);
fileName = (char *) malloc(strlen(trunced_name) + 16);
strcpy(fileName, "File ");
strcat(fileName, trunced_name);
strcat(fileName, " protected");
result = query_dialog(fileName, "Delete anyway?", 3, 3, " No ", " Yes ", " All in the future!");
free(fileName);
switch (result) {
case 0:
do_refresh ();
return -1;
case 1:
do_refresh ();
break;
case 2:
do_refresh ();
erase_all = 1;
break;
default:
do_refresh ();
return -1;
break;
}
}
chmod(pathName, S_IWRITE); /* make it writable */
rc = DeleteFile(pathName);
returnError = GetLastError();
if (rc == FALSE) {
errno = conv_nt_unx_rc(returnError);
return -1;
}
}
if (rc == TRUE) return 0;
else
return -1;
}
#endif /*USE_VFS*/
void my_statfs (struct my_statfs *myfs_stats, char *path)
{
int len = 0;
DWORD lpSectorsPerCluster, lpBytesPerSector, lpFreeClusters, lpClusters;
DWORD lpMaximumComponentLength, lpFileSystemFlags;
static char lpVolumeNameBuffer[256], lpFileSystemNameBuffer[30];
GetDiskFreeSpace(NULL, &lpSectorsPerCluster, &lpBytesPerSector,
&lpFreeClusters, &lpClusters);
/* KBytes available */
myfs_stats->avail = lpSectorsPerCluster * lpBytesPerSector * lpFreeClusters / 1024;
/* KBytes total */
myfs_stats->total = lpSectorsPerCluster * lpBytesPerSector * lpClusters / 1024;
myfs_stats->nfree = lpFreeClusters;
myfs_stats->nodes = lpClusters;
GetVolumeInformation(NULL, lpVolumeNameBuffer, 255, NULL,
&lpMaximumComponentLength, &lpFileSystemFlags,
lpFileSystemNameBuffer, 30);
myfs_stats->mpoint = lpFileSystemNameBuffer;
myfs_stats->device = lpVolumeNameBuffer;
myfs_stats->type = GetDriveType(NULL);
switch (myfs_stats->type) {
/*
* mmm. DeviceIoControl may fail if you are not root case
* F5_1Pt2_512, 5.25", 1.2MB, 512 bytes/sector
* myfs_stats->typename = "5.25\" 1.2MB"; break; case
* F3_1Pt44_512, 3.5", 1.44MB, 512 bytes/sector
* myfs_stats->typename = "3.5\" 1.44MB"; break; case
* F3_2Pt88_512, 3.5", 2.88MB, 512 bytes/sector
* myfs_stats->typename = "3.5\" 2.88MB"; break; case
* F3_20Pt8_512, 3.5", 20.8MB, 512 bytes/sector
* myfs_stats->typename = "3.5\" 20.8MB"; break; case
* F3_720_512, 3.5", 720KB, 512 bytes/sector
* myfs_stats->typename = "3.5\" 720MB"; break; case
* F5_360_512, 5.25", 360KB, 512 bytes/sector
* myfs_stats->typename = "5.25\" 360KB"; break; case
* F5_320_512, 5.25", 320KB, 512 bytes/sector
* case F5_320_1024, 5.25", 320KB, 1024
* bytes/sector myfs_stats->typename = "5.25\" 320KB"; break;
* case F5_180_512, 5.25", 180KB, 512
* bytes/sector myfs_stats->typename = "5.25\" 180KB"; break;
* case F5_160_512, 5.25", 160KB, 512
* bytes/sector myfs_stats->typename = "5.25\" 160KB"; break;
* case RemovableMedia, Removable media other than
* floppy myfs_stats->typename = "Removable"; break; case
* FixedMedia Fixed hard disk media
* myfs_stats->typename = "Hard Disk"; break; case Unknown:
* Format is unknown
*/
case DRIVE_REMOVABLE:
myfs_stats->typename = "Removable";
break;
case DRIVE_FIXED:
myfs_stats->typename = "Hard Disk";
break;
case DRIVE_REMOTE:
myfs_stats->typename = "Networked";
break;
case DRIVE_CDROM:
myfs_stats->typename = "CD-ROM";
break;
case DRIVE_RAMDISK:
myfs_stats->typename = "RAM disk";
break;
default:
myfs_stats->typename = "unknown";
break;
};
}
int gettimeofday (struct timeval* tvp, void *p)
{
if (p != NULL)
return 0;
/* Since MC only calls this func from get_random_hint we return
some value, not exactly the "correct" one */
tvp->tv_sec = GetTickCount()/1000; /* Number of milliseconds since Windows started*/
tvp->tv_usec = GetTickCount();
}
/* FAKE functions */
int
look_for_exe(const char* pathname)
{
int j;
char *p;
int lgh = strlen(pathname);
if (lgh < 4) {
return 0;
} else {
p = (char *) pathname;
for (j=0; j<lgh-4; j++) {
p++;
} /* endfor */
if (!stricmp(p, ".exe") ||
!stricmp(p, ".bat") ||
!stricmp(p, ".com") ||
!stricmp(p, ".cmd")) {
return 1;
}
}
return 0;
}
int
lstat (const char* pathname, struct stat *buffer)
{
int rc = stat (pathname, buffer);
#ifdef __BORLANDC__
if (rc == 0) {
if (!(buffer->st_mode & S_IFDIR)) {
if (!look_for_exe(pathname)) {
buffer->st_mode &= !S_IXUSR & !S_IXGRP & !S_IXOTH;
}
}
}
#endif
return rc;
}
int getuid ()
{
/* SID sid;
LookupAccountName (NULL, &sid...
return 0;
*/
return 0;
}
int getgid ()
{
return 0;
}
int readlink (char* path, char* buf, int size)
{
return -1;
}
int symlink (char *n1, char *n2)
{
return -1;
}
int link (char *p1, char *p2)
{
return -1;
}
int chown (char *path, int owner, int group)
{
return -1;
}
int mknod (char *path, int mode, int dev)
{
return -1;
}
void init_uid_gid_cache (void)
{
return;
}
/* INHANDLE is a result of some mc_open call to any vfs, this function
returns a normal handle (to be used with read) of a pipe for reading
of the output of COMMAND with arguments ... (must include argv[0] as
well) which gets as its input at most INLEN bytes from the INHANDLE
using mc_read. You have to call mc_doublepclose to close the returned
handle afterwards. If INLEN is -1, we read as much as we can :) */
int mc_doublepopen (int inhandle, int inlen, pid_t *the_pid, char *command, ...)
{
int pipe0 [2], pipe1 [2], std_sav [2];
#define MAXARGS 16
int argno;
char *args[MAXARGS];
char buffer [8192];
int i;
va_list ap;
pid_t pid;
// Create the pipes
if(_pipe(pipe0, 8192, O_BINARY | O_NOINHERIT) == -1)
exit (1);
if(_pipe(pipe1, 8192, O_BINARY | O_NOINHERIT) == -1)
exit (1);
// Duplicate stdin/stdout handles (next line will close original)
std_sav[0] = _dup(_fileno(stdin));
std_sav[1] = _dup(_fileno(stdout));
// Duplicate read end of pipe0 to stdin handle
if(_dup2(pipe0[0], _fileno(stdin)) != 0)
exit (1);
// Duplicate write end of pipe1 to stdout handle
if(_dup2(pipe1[1], _fileno(stdout)) != 0)
exit (1);
// Close original read end of pipe0
close(pipe0[0]);
// Close original write end of pipe1
close(pipe1[1]);
va_start (ap, command);
argno = 0;
while ((args[argno++] = va_arg(ap, char *)) != NULL)
if (argno == (MAXARGS - 1)) {
args[argno] = NULL;
break;
}
va_end (ap);
// Spawn process
pid = spawnvp(P_NOWAIT,command, args);// argv[1], (const char* const*)&argv[1]);
if(!pid)
exit (1);
// Duplicate copy of original stdin back into stdin
if(_dup2(std_sav[0], _fileno(stdin)) != 0)
exit (1);
// Duplicate copy of original stdout back into stdout
if(_dup2(std_sav[1], _fileno(stdout)) != 0)
exit (1);
// Close duplicate copy of original stdout and stdin
close(std_sav[0]);
close(std_sav[1]);
while ((i = _read (inhandle, buffer,
(inlen == -1 || inlen > 8192)
? 8192 : inlen)) > 0) {
write (pipe0 [1], buffer, i);
if (inlen != -1) {
inlen -= i;
if (!inlen)
break;
}
}
close (pipe0 [1]);
*the_pid = pid;
return pipe1 [0];
}
int mc_doublepclose (int pipe, pid_t pid)
{
int status = 0;
close (pipe);
_cwait ( &status, pid, 0);
return status;
}
/*hacks to get it compile, remove these after vfs works */
/*hacks to get it compile, remove these after vfs works */
#ifndef USE_VFS
char *vfs_get_current_dir (void)
{
return NULL;
}
int vfs_current_is_extfs (void)
{
return 0;
}
int vfs_file_is_ftp (char *filename)
{
return 0;
}
int mc_utime (char *path, void *times)
{
return 0;
}
void extfs_run (char *file)
{
return;
}
#endif
char *
get_default_editor (void)
{
return "notepad.exe";
}
int
errno_dir_not_empty (int err)
{
if (err == ENOTEMPTY || err == EEXIST || err == EACCES)
return 1;
return 0;
}
/* The MC library directory is by default the directory where mc.exe
is situated. It is possible to specify this directory via MCHOME
environment variable */
char *
get_mc_lib_dir ()
{
char *cur;
char *mchome = getenv("MCHOME");
if (mchome && *mchome)
return mchome;
mchome = malloc(MC_MAXPATHLEN);
GetModuleFileName(NULL, mchome, MC_MAXPATHLEN);
for (cur = mchome + strlen(mchome); \
(cur > mchome) && (*cur != PATH_SEP); cur--);
*cur = 0;
cur = strdup(mchome);
free(mchome);
if (!cur || !*cur) {
free(cur);
return "C:\\MC";
}
return cur;
}
int get_user_rights (struct stat *buf)
{
return 2;
}
void init_groups (void)
{
}
void delete_groups (void)
{
}
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