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This file is part of LiveCode.

LiveCode is free software; you can redistribute it and/or modify it under

the terms of the GNU General Public License v3 as published by the Free

Software Foundation.

LiveCode 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 LiveCode. If not see <http://www.gnu.org/licenses/>. */

///////////////////////////////////////////////////////////////////////////////

// Unix support function implementations

#include "unxsupport.h"

#include <stdlib.h>

void MCU_path2std(char *p_path)

{

if (p_path == NULL || !*p_path)

return;

{

if (*p_path == '/')

{

*p_path = '\\';

}

else

{

if (*p_path == '\\')

*p_path = '/';

}

} while (*++p_path);

}

void MCU_path2native(char *dptr)

{

if (dptr == NULL || !*dptr)

return;

}

void MCU_fix_path(char *cstr)

{

char *fptr = cstr;

while (*fptr)

{

if (*fptr == '/' && *(fptr + 1) == '.' && *(fptr + 2) == '.' && *(fptr + 3) == '/')

{

if (fptr == cstr)

strcpy(fptr, fptr + 3);

else

{

char *bptr = fptr - 1;

while (True)

{

if (*bptr == '/')

{

strcpy(bptr, fptr + 3);

fptr = bptr;

break;

}

else

bptr--;

}

else

if (*fptr == '/' && *(fptr + 1) == '.' && *(fptr + 2) == '/')

strcpy(fptr, fptr + 2);

else

if (fptr != cstr && *fptr == '/' && *(fptr + 1) == '/')

strcpy(fptr, fptr + 1);

else

fptr++;

}

char *MCS_getcurdir()

{

char *t_path = new (nothrow) char[PATH_MAX + 2];

getcwd(t_path, PATH_MAX);

return t_path;

}

#define strclone strdup

char *MCS_resolvepath(const char *path)

{

if (path == NULL)

{

char *tpath = MCS_getcurdir();

return tpath;

}

char *tildepath;

if (path[0] == '~')

{

char *tpath = strclone(path);

char *tptr = strchr(tpath, '/');

if (tptr == NULL)

{

tpath[0] = '\0';

tptr = tpath;

}

else

*tptr++ = '\0';

struct passwd *pw;

if (*(tpath + 1) == '\0')

pw = getpwuid(getuid());

else

pw = getpwnam(tpath + 1);

if (pw == NULL)

return NULL;

tildepath = static_cast<char*>(malloc(sizeof(*tildepath) *

(strlen(pw->pw_dir) + strlen(tptr) + 2)));

strcpy(tildepath, pw->pw_dir);

if (*tptr) {

strcat(tildepath, "/");

strcat(tildepath, tptr);

}

free(tpath);

}

else

tildepath = strclone(path);

#ifdef SCO

struct scoutsname scostruct;

if (__scoinfo(&scostruct, sizeof(scostruct)))

return tildepath;

if (scostruct.release[0] < '3'

|| scostruct.release[2] < '2'

|| scostruct.release[4] < '4')

return tildepath;

#endif

struct stat buf;

if (lstat(tildepath, &buf) != 0 || !S_ISLNK(buf.st_mode))

return tildepath;

int size;

char *newname = new (nothrow) char[PATH_MAX + 2];

if ((size = readlink(tildepath, newname, PATH_MAX)) < 0) {

free(tildepath);

delete[] newname;

return NULL;

}

free(tildepath);

newname[size] = '\0';

if (newname[0] != '/') {

char *fullpath = new (nothrow) char[strlen(path) + strlen(newname) + 2];

strcpy(fullpath, path);

char *sptr = strrchr(fullpath, '/');

if (sptr == NULL)

sptr = fullpath;

else

sptr++;

strcpy(sptr, newname);

delete[] newname;

newname = MCS_resolvepath(fullpath);

delete[] fullpath;

}

return newname;

}