mdw@git.distorted.org.uk Git - disorder/blob - lib/home.c

   1 /*
   2  * This file is part of DisOrder
   3  * Copyright (C) 2020 Mark Wooding
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 /** @file lib/home.c
  19  * @brief Find things in the user's home directory
  20  */
  21
  22 #include "common.h"
  23
  24 #include <errno.h>
  25
  26 #if HAVE_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29 #if HAVE_PWD_H
  30 # include <pwd.h>
  31 #endif
  32 #if HAVE_SHLOBJ_H
  33 # include <Shlobj.h>
  34 #endif
  35
  36 #include "mem.h"
  37 #include "home.h"
  38 #include "log.h"
  39 #include "printf.h"
  40
  41 #if _WIN32
  42 #  define DIRSEP "\\"
  43 #else
  44 #  define DIRSEP "/"
  45 #endif
  46
  47 static char *profiledir;
  48
  49
  50 /** @brief Return the user's profile directory
  51  * @return profile directory
  52  * On Unix, this defaults to `$HOME/.disorder/'; on Windows, it's
  53  * `%APPDATA%\DisOrder\'.  The trailing delimiter is included.
  54  */
  55 const char *profile_directory(void) {
  56   char *t;
  57
  58   if(profiledir) return profiledir;
  59   if((t = getenv("DISORDER_HOME")))
  60     profiledir = t;
  61   else {
  62 #if _WIN32
  63     wchar_t *wpath = 0;
  64     char *appdata;
  65     if(SHGetKnownFolderPath(&FOLDERID_RoamingAppData, 0, NULL, &wpath) != S_OK) {
  66       disorder_error(0, "error calling SHGetKnownFolderPath");
  67       return 0;
  68     }
  69     t = win_wtomb(wpath);
  70     CoTaskMemFree(wpath);
  71     byte_xasprintf(&profiledir, "%s\\DisOrder", appdata);
  72 #else
  73     struct passwd *pw;
  74     if(!(t = getenv("HOME"))) {
  75       if(!(pw = getpwuid(getuid())))
  76         disorder_error(0, "user not found in password database");
  77       t = pw->pw_dir;
  78     }
  79     byte_xasprintf(&profiledir, "%s/.disorder", t);
  80 #endif
  81   }
  82   return profiledir;
  83 }
  84
  85 /** @brief Return the name of a file within the user's profile directory
  86  * @param file Basename of the file desired
  87  * @return Full path name of selected file.
  88  * This currently doesn't do anything very useful with directory separators
  89  * within @a file.
  90  */
  91 char *profile_filename(const char *file) {
  92   const char *d;
  93   char *t;
  94   if(!(d = profile_directory())) return 0;
  95   byte_xasprintf(&t, "%s" DIRSEP "%s", d, file);
  96   return t;
  97 }
  98
  99 /*
 100 Local Variables:
 101 c-basic-offset:2
 102 comment-column:40
 103 fill-column:79
 104 indent-tabs-mode:nil
 105 End:
 106 */