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Annotation of embedaddon/curl/src/tool_homedir.c, revision 1.1.1.1

1.1       misho       1: /***************************************************************************
                      2:  *                                  _   _ ____  _
                      3:  *  Project                     ___| | | |  _ \| |
                      4:  *                             / __| | | | |_) | |
                      5:  *                            | (__| |_| |  _ <| |___
                      6:  *                             \___|\___/|_| \_\_____|
                      7:  *
                      8:  * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
                      9:  *
                     10:  * This software is licensed as described in the file COPYING, which
                     11:  * you should have received as part of this distribution. The terms
                     12:  * are also available at https://curl.haxx.se/docs/copyright.html.
                     13:  *
                     14:  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
                     15:  * copies of the Software, and permit persons to whom the Software is
                     16:  * furnished to do so, under the terms of the COPYING file.
                     17:  *
                     18:  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
                     19:  * KIND, either express or implied.
                     20:  *
                     21:  ***************************************************************************/
                     22: #include "tool_setup.h"
                     23: 
                     24: #ifdef HAVE_PWD_H
                     25: #  include <pwd.h>
                     26: #endif
                     27: 
                     28: #include <curl/mprintf.h>
                     29: 
                     30: #include "tool_homedir.h"
                     31: 
                     32: #include "memdebug.h" /* keep this as LAST include */
                     33: 
                     34: static char *GetEnv(const char *variable)
                     35: {
                     36:   char *dupe, *env;
                     37: 
                     38:   env = curl_getenv(variable);
                     39:   if(!env)
                     40:     return NULL;
                     41: 
                     42:   dupe = strdup(env);
                     43:   curl_free(env);
                     44:   return dupe;
                     45: }
                     46: 
                     47: /* return the home directory of the current user as an allocated string */
                     48: char *homedir(void)
                     49: {
                     50:   char *home;
                     51: 
                     52:   home = GetEnv("CURL_HOME");
                     53:   if(home)
                     54:     return home;
                     55: 
                     56:   home = GetEnv("HOME");
                     57:   if(home)
                     58:     return home;
                     59: 
                     60: #if defined(HAVE_GETPWUID) && defined(HAVE_GETEUID)
                     61:  {
                     62:    struct passwd *pw = getpwuid(geteuid());
                     63: 
                     64:    if(pw) {
                     65:      home = pw->pw_dir;
                     66:      if(home && home[0])
                     67:        home = strdup(home);
                     68:      else
                     69:        home = NULL;
                     70:    }
                     71:  }
                     72: #endif /* PWD-stuff */
                     73: #ifdef WIN32
                     74:   home = GetEnv("APPDATA");
                     75:   if(!home) {
                     76:     char *env = GetEnv("USERPROFILE");
                     77:     if(env) {
                     78:       char *path = curl_maprintf("%s\\Application Data", env);
                     79:       if(path) {
                     80:         home = strdup(path);
                     81:         curl_free(path);
                     82:       }
                     83:       free(env);
                     84:     }
                     85:   }
                     86: #endif /* WIN32 */
                     87:   return home;
                     88: }