You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
291 lines
8.0 KiB
291 lines
8.0 KiB
/*
|
|
This file is part of the KDE libraries
|
|
Copyright (c) 2000 Waldo Bastian <bastian@kde.org>
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License version 2 as published by the Free Software Foundation.
|
|
|
|
This library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public License
|
|
along with this library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/un.h>
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <pwd.h>
|
|
#ifdef HAVE_LIMITS_H
|
|
#include <limits.h>
|
|
#endif
|
|
|
|
int check_tmp_dir(const char *tmp_dir);
|
|
int create_link(const char *file, const char *tmp_dir);
|
|
int build_link(const char *tmp_prefix, const char *kde_prefix, int kdehostname);
|
|
|
|
int check_tmp_dir(const char *tmp_dir)
|
|
{
|
|
int result;
|
|
struct stat stat_buf;
|
|
result = lstat(tmp_dir, &stat_buf);
|
|
if ((result == -1) && (errno == ENOENT))
|
|
{
|
|
result = mkdir(tmp_dir, 0700);
|
|
if (result == -1)
|
|
{
|
|
fprintf(stderr, "Error: Can not create directory \"%s\".\n", tmp_dir);
|
|
return 1;
|
|
}
|
|
result = stat(tmp_dir, &stat_buf);
|
|
}
|
|
if ((result == -1) || (!S_ISDIR(stat_buf.st_mode)))
|
|
{
|
|
fprintf(stderr, "Error: \"%s\" is not a directory.\n", tmp_dir);
|
|
return 1;
|
|
}
|
|
|
|
if (stat_buf.st_uid != getuid())
|
|
{
|
|
fprintf(stderr, "Error: \"%s\" is owned by uid %d instead of uid %d.\n", tmp_dir, stat_buf.st_uid, getuid());
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int create_link(const char *file, const char *tmp_dir)
|
|
{
|
|
int result;
|
|
result = check_tmp_dir(tmp_dir);
|
|
if (result)
|
|
{
|
|
return result;
|
|
}
|
|
result = symlink(tmp_dir, file);
|
|
if (result == -1)
|
|
{
|
|
fprintf(stderr, "Error: Can not create link from \"%s\" to \"%s\"\n", file, tmp_dir);
|
|
return 1;
|
|
}
|
|
/*printf("Created link from \"%s\" to \"%s\"\n", file, tmp_dir);*/
|
|
return 0;
|
|
}
|
|
|
|
|
|
#ifndef PATH_MAX
|
|
#define PATH_MAX 4096
|
|
#endif
|
|
int build_link(const char *tmp_prefix, const char *kde_prefix, int kdehostname)
|
|
{
|
|
struct passwd *pw_ent;
|
|
char kde_tmp_dir[PATH_MAX+1];
|
|
char user_tmp_dir[PATH_MAX+1];
|
|
char tmp_buf[PATH_MAX+1];
|
|
int uid = getuid();
|
|
const char *home_dir = getenv("HOME");
|
|
const char *kde_home = uid ? getenv("KDEHOME") : getenv("KDEROOTHOME");
|
|
int result;
|
|
struct stat stat_buf;
|
|
|
|
kde_tmp_dir[0] = 0;
|
|
|
|
pw_ent = getpwuid(uid);
|
|
if (!pw_ent)
|
|
{
|
|
fprintf(stderr, "Error: Can not find password entry for uid %d.\n", getuid());
|
|
return 1;
|
|
}
|
|
|
|
strncpy(user_tmp_dir, tmp_prefix, PATH_MAX);
|
|
user_tmp_dir[ PATH_MAX ] = '\0';
|
|
strncat(user_tmp_dir, pw_ent->pw_name, PATH_MAX - strlen(tmp_prefix));
|
|
|
|
if (!kde_home || !kde_home[0])
|
|
{
|
|
kde_home = "~/.kde3/";
|
|
}
|
|
|
|
if (kde_home[0] == '~')
|
|
{
|
|
if (uid == 0)
|
|
{
|
|
home_dir = pw_ent->pw_dir ? pw_ent->pw_dir : "/root";
|
|
}
|
|
if (!home_dir || !home_dir[0])
|
|
{
|
|
fprintf(stderr, "Aborting. $HOME not set!\n");
|
|
return 1;
|
|
}
|
|
if (strlen(home_dir) > (PATH_MAX-100))
|
|
{
|
|
fprintf(stderr, "Aborting. Home directory path too long!\n");
|
|
return 1;
|
|
}
|
|
kde_home++;
|
|
strncpy(kde_tmp_dir, home_dir, PATH_MAX);
|
|
kde_tmp_dir[ PATH_MAX ] = '\0';
|
|
}
|
|
strncat(kde_tmp_dir, kde_home, PATH_MAX - strlen(kde_tmp_dir));
|
|
|
|
/** Strip trailing '/' **/
|
|
if ( kde_tmp_dir[strlen(kde_tmp_dir)-1] == '/')
|
|
kde_tmp_dir[strlen(kde_tmp_dir)-1] = 0;
|
|
|
|
result = stat(kde_tmp_dir, &stat_buf);
|
|
if ((result == -1) && (errno == ENOENT))
|
|
{
|
|
result = mkdir(kde_tmp_dir, 0700);
|
|
}
|
|
if (result == -1)
|
|
{
|
|
perror("mkdir failed: ");
|
|
return 1;
|
|
}
|
|
|
|
strncat(kde_tmp_dir, kde_prefix, PATH_MAX - strlen(kde_tmp_dir));
|
|
|
|
if( kdehostname )
|
|
{
|
|
if( getenv("XAUTHLOCALHOSTNAME"))
|
|
strncat(kde_tmp_dir+strlen(kde_tmp_dir), getenv("XAUTHLOCALHOSTNAME"), PATH_MAX - strlen(kde_tmp_dir) - 1);
|
|
else
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
if (gethostname(kde_tmp_dir+strlen(kde_tmp_dir), PATH_MAX - strlen(kde_tmp_dir) - 1) != 0)
|
|
{
|
|
perror("Could not determine hostname: ");
|
|
return 1;
|
|
}
|
|
}
|
|
kde_tmp_dir[sizeof(kde_tmp_dir)-1] = '\0';
|
|
|
|
result = lstat(kde_tmp_dir, &stat_buf);
|
|
if ((result == 0) && (S_ISDIR(stat_buf.st_mode)))
|
|
{
|
|
/* $KDEHOME/tmp is a normal directory. Do nothing. */
|
|
/*printf("Directory \"%s\" already exists.\n", kde_tmp_dir);*/
|
|
return 0;
|
|
}
|
|
if ((result == -1) && (errno == ENOENT))
|
|
{
|
|
/*printf("Creating link %s.\n", kde_tmp_dir);*/
|
|
result = create_link(kde_tmp_dir, user_tmp_dir);
|
|
if (result == 0) return 0; /* Success */
|
|
unlink(kde_tmp_dir);
|
|
strncat(user_tmp_dir, "XXXXXX", PATH_MAX - strlen(user_tmp_dir));
|
|
mktemp(user_tmp_dir); /* We want a directory, not a file, so using mkstemp makes no sense and is wrong */
|
|
return create_link(kde_tmp_dir, user_tmp_dir);
|
|
}
|
|
if ((result == -1) || (!S_ISLNK(stat_buf.st_mode)))
|
|
{
|
|
fprintf(stderr, "Error: \"%s\" is not a link or a directory.\n", kde_tmp_dir);
|
|
return 1;
|
|
}
|
|
/* kde_tmp_dir is a link. Check whether it points to a valid directory. */
|
|
result = readlink(kde_tmp_dir, tmp_buf, PATH_MAX);
|
|
if (result == -1)
|
|
{
|
|
fprintf(stderr, "Error: \"%s\" could not be read.\n", kde_tmp_dir);
|
|
return 1;
|
|
}
|
|
tmp_buf[result] = '\0';
|
|
/*printf("Link points to \"%s\"\n", tmp_buf);*/
|
|
if (strncmp(tmp_buf, user_tmp_dir, strlen(user_tmp_dir)) != 0)
|
|
{
|
|
fprintf(stderr, "Error: \"%s\" points to \"%s\" instead of \"%s\".\n", kde_tmp_dir, tmp_buf, user_tmp_dir);
|
|
unlink(kde_tmp_dir);
|
|
/*printf("Creating link %s.\n", kde_tmp_dir);*/
|
|
result = create_link(kde_tmp_dir, user_tmp_dir);
|
|
if (result == 0) return 0; /* Success */
|
|
unlink(kde_tmp_dir);
|
|
strncat(user_tmp_dir, "XXXXXX", PATH_MAX - strlen(user_tmp_dir));
|
|
mktemp(user_tmp_dir); /* We want a directory, not a file, so using mkstemp makes no sense and is wrong */
|
|
return create_link(kde_tmp_dir, user_tmp_dir);
|
|
}
|
|
result = check_tmp_dir(tmp_buf);
|
|
if (result == 0) return 0; /* Success */
|
|
unlink(kde_tmp_dir);
|
|
strncat(user_tmp_dir, "XXXXXX", PATH_MAX - strlen(user_tmp_dir));
|
|
mktemp(user_tmp_dir); /* We want a directory, not a file, so using mkstemp makes no sense and is wrong */
|
|
return create_link(kde_tmp_dir, user_tmp_dir);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
const char *tmp = 0;
|
|
char *tmp_prefix = 0;
|
|
const char *kde_prefix = 0;
|
|
int res = 0;
|
|
|
|
if ((argc != 2) ||
|
|
((strcmp(argv[1], "tmp")!=0) &&
|
|
(strcmp(argv[1], "socket")!=0) &&
|
|
(strcmp(argv[1], "cache")!=0)))
|
|
{
|
|
fprintf(stderr, "Usage: lnusertemp tmp|socket|cache\n");
|
|
return 1;
|
|
}
|
|
|
|
tmp = getenv("KDETMP");
|
|
if (!tmp || !tmp[0])
|
|
tmp = getenv("TMPDIR");
|
|
if (!tmp || !tmp[0])
|
|
tmp = "/tmp";
|
|
|
|
if (strcmp(argv[1], "tmp") == 0)
|
|
{
|
|
tmp_prefix = (char *)malloc(strlen(tmp)+strlen("/kde-")+1);
|
|
strcpy(tmp_prefix, tmp);
|
|
strcat(tmp_prefix, "/kde-");
|
|
|
|
kde_prefix = "/tmp-";
|
|
}
|
|
else if (strcmp(argv[1], "socket") == 0)
|
|
{
|
|
tmp_prefix = (char *)malloc(strlen(tmp)+strlen("/ksocket-")+1);
|
|
strcpy(tmp_prefix, tmp );
|
|
strcat(tmp_prefix, "/ksocket-" );
|
|
|
|
kde_prefix = "/socket-";
|
|
}
|
|
else if (strcmp(argv[1], "cache") == 0)
|
|
{
|
|
tmp = getenv("KDEVARTMP");
|
|
if (!tmp || !tmp[0])
|
|
tmp = "/var/tmp";
|
|
|
|
tmp_prefix = (char *)malloc(strlen(tmp)+strlen("/kdecache-")+1);
|
|
strcpy(tmp_prefix, tmp );
|
|
strcat(tmp_prefix, "/kdecache-" );
|
|
|
|
kde_prefix = "/cache-";
|
|
}
|
|
|
|
res = build_link(tmp_prefix, kde_prefix, 1);
|
|
if( build_link(tmp_prefix, kde_prefix, 0))
|
|
res = 1;
|
|
|
|
free(tmp_prefix);
|
|
|
|
return res;
|
|
}
|