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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "tool_setup.h"
#ifdef HAVE_PWD_H
# include <pwd.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef __VMS
# include <unixlib.h>
#endif
#include "tool_homedir.h"
#include "memdebug.h" /* keep this as LAST include */
static char *GetEnv(const char *variable, char do_expand)
{
char *env = NULL;
#ifdef WIN32
char buf1[1024], buf2[1024];
DWORD rc;
/* Don't use getenv(); it doesn't find variable added after program was
* started. Don't accept truncated results (i.e. rc >= sizeof(buf1)). */
rc = GetEnvironmentVariable(variable, buf1, sizeof(buf1));
if(rc > 0 && rc < sizeof(buf1)) {
env = buf1;
variable = buf1;
}
if(do_expand && strchr(variable,'%')) {
/* buf2 == variable if not expanded */
rc = ExpandEnvironmentStrings (variable, buf2, sizeof(buf2));
if(rc > 0 && rc < sizeof(buf2) &&
!strchr(buf2,'%')) /* no vars still unexpanded */
env = buf2;
}
#else
(void)do_expand;
#ifdef __VMS
env = getenv(variable);
if(env && strcmp("HOME",variable) == 0) {
env = decc_translate_vms(env);
}
#else
/* no length control */
env = getenv(variable);
#endif
#endif
return (env && env[0]) ? strdup(env) : NULL;
}
/* return the home directory of the current user as an allocated string */
char *homedir(void)
{
char *home;
home = GetEnv("CURL_HOME", FALSE);
if(home)
return home;
home = GetEnv("HOME", FALSE);
if(home)
return home;
#if defined(HAVE_GETPWUID) && defined(HAVE_GETEUID)
{
struct passwd *pw = getpwuid(geteuid());
if(pw) {
#ifdef __VMS
home = decc_translate_vms(pw->pw_dir);
#else
home = pw->pw_dir;
#endif
if(home && home[0])
home = strdup(home);
else
home = NULL;
}
}
#endif /* PWD-stuff */
#ifdef WIN32
home = GetEnv("APPDATA", TRUE);
if(!home)
home = GetEnv("%USERPROFILE%\\Application Data", TRUE); /* Normally only
on Win-2K/XP */
#endif /* WIN32 */
return home;
}
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