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/* Copyright (C) 2003-2015 LiveCode Ltd.
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>
#include <core.h>
void FreeDatabaseDriver( DATABASEREC *tdatabaserec)
{
dlclose(tdatabaserec -> driverref);
}
void MCU_path2std(char *p_path)
{
if (p_path == NULL || !*p_path)
return;
do
{
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 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 = new char[strlen(pw->pw_dir) + strlen(tptr) + 2];
strcpy(tildepath, pw->pw_dir);
if (*tptr) {
strcat(tildepath, "/");
strcat(tildepath, tptr);
}
delete 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 char[PATH_MAX + 2];
if ((size = readlink(tildepath, newname, PATH_MAX)) < 0) {
delete tildepath;
delete newname;
return NULL;
}
delete tildepath;
newname[size] = '\0';
if (newname[0] != '/') {
char *fullpath = new 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;
}
// DoLoadDatabaseDriver
DATABASEREC *DoLoadDatabaseDriver(const char *p_path)
{
char *t_filename;
t_filename = NULL;
if (t_filename == NULL)
{
t_filename = (char *)malloc((sizeof(char) * strlen(p_path)) + 4);
sprintf(t_filename, "%s.so", p_path);
}
void *t_driver_handle;
t_driver_handle = dlopen(t_filename, RTLD_NOW);
if (t_driver_handle == NULL)
{
free(t_filename);
return NULL;
}
DATABASEREC *t_result;
t_result = new DATABASEREC;
t_result -> driverref = t_driver_handle;
t_result -> idcounterptr = (idcounterrefptr)dlsym(t_driver_handle, "setidcounterref");
t_result -> newconnectionptr = (new_connectionrefptr)dlsym(t_driver_handle, "newdbconnectionref");
t_result -> releaseconnectionptr = (release_connectionrefptr)dlsym(t_driver_handle, "releasedbconnectionref");
t_result -> setcallbacksptr = (set_callbacksrefptr)dlsym(t_driver_handle, "setcallbacksref");
free(t_filename);
return t_result;
}
const char *GetExternalFolder(void)
{
static char *s_folder = NULL;
if (s_folder == NULL)
{
Dl_info t_info;
if (dladdr((void *)GetExternalFolder, &t_info) == 0)
return NULL;
// MW-2011-07-22: If there is no '/' in the path, then we're not getting
// a full path back (e.g. on Android) therefore there's no way to
// search the folder the external is in.
if (strrchr(t_info . dli_fname, '/') == NULL)
return NULL;
s_folder = strdup(t_info . dli_fname);
strrchr(s_folder, '/')[0] = '\0';
}
return s_folder;
}
const char *GetApplicationFolder(void)
{
return NULL;
}