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/* Copyright (C) 2010 TightVNC Team. All Rights Reserved.
* Copyright 2021-2023 Pierre Ossman for Cendio AB
*
* This 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 software 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 software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <os/os.h>
#include <assert.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifndef WIN32
#include <pwd.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#else
#include <windows.h>
#include <wininet.h> /* MinGW needs it */
#include <shlobj.h>
#define stat _stat
#define mkdir(path, mode) mkdir(path)
#endif
static const char* getvncdir(bool userDir, const char *xdg_env, const char *xdg_def)
{
static char dir[PATH_MAX], legacy[PATH_MAX];
struct stat st;
#ifndef WIN32
char *homedir, *xdgdir;
uid_t uid;
struct passwd *passwd;
#else
BOOL ret;
#endif
#ifndef WIN32
homedir = getenv("HOME");
if (homedir == nullptr) {
uid = getuid();
passwd = getpwuid(uid);
if (passwd == nullptr) {
/* Do we want emit error msg here? */
return nullptr;
}
homedir = passwd->pw_dir;
}
if (userDir)
return homedir;
xdgdir = getenv(xdg_env);
if (xdgdir != nullptr && xdgdir[0] == '/')
snprintf(dir, sizeof(dir), "%s/tigervnc", xdgdir);
else
snprintf(dir, sizeof(dir), "%s/%s/tigervnc", homedir, xdg_def);
snprintf(legacy, sizeof(legacy), "%s/.vnc", homedir);
#else
(void) xdg_def;
(void) xdg_env;
if (userDir)
ret = SHGetSpecialFolderPath(nullptr, dir, CSIDL_PROFILE, FALSE);
else
ret = SHGetSpecialFolderPath(nullptr, dir, CSIDL_APPDATA, FALSE);
if (ret == FALSE)
return nullptr;
if (userDir)
return dir;
ret = SHGetSpecialFolderPath(nullptr, legacy, CSIDL_APPDATA, FALSE);
if (ret == FALSE)
return nullptr;
if (strlen(dir) + strlen("\\TigerVNC") >= sizeof(dir))
return nullptr;
if (strlen(legacy) + strlen("\\vnc") >= sizeof(legacy))
return nullptr;
strcat(dir, "\\TigerVNC");
strcat(legacy, "\\vnc");
#endif
return (stat(dir, &st) != 0 && stat(legacy, &st) == 0) ? legacy : dir;
}
const char* os::getuserhomedir()
{
return getvncdir(true, nullptr, nullptr);
}
const char* os::getvncconfigdir()
{
return getvncdir(false, "XDG_CONFIG_HOME", ".config");
}
const char* os::getvncdatadir()
{
return getvncdir(false, "XDG_DATA_HOME", ".local/share");
}
const char* os::getvncstatedir()
{
return getvncdir(false, "XDG_STATE_HOME", ".local/state");
}
int os::mkdir_p(const char *path_, mode_t mode)
{
char *path = strdup(path_);
char *p;
#ifdef WIN32
(void)mode;
#endif
for (p = path + 1; *p; p++) {
if (*p == '/') {
*p = '\0';
if (mkdir(path, mode) == -1) {
if (errno != EEXIST) {
free(path);
return -1;
}
}
*p = '/';
}
}
if (mkdir(path, mode) == -1) {
free(path);
return -1;
}
free(path);
return 0;
}
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