[331] | 1 | /***************************************************************************
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| 2 | * _ _ ____ _
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| 3 | * Project ___| | | | _ \| |
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| 4 | * / __| | | | |_) | |
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| 5 | * | (__| |_| | _ <| |___
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| 6 | * \___|\___/|_| \_\_____|
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| 7 | *
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| 8 | * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
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| 9 | *
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| 10 | * This software is licensed as described in the file COPYING, which
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| 11 | * you should have received as part of this distribution. The terms
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| 12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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| 13 | *
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| 14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 15 | * copies of the Software, and permit persons to whom the Software is
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| 16 | * furnished to do so, under the terms of the COPYING file.
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| 17 | *
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| 18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 19 | * KIND, either express or implied.
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| 20 | *
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| 21 | ***************************************************************************/
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| 22 | #include "tool_setup.h"
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| 23 |
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| 24 | #ifdef HAVE_PWD_H
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| 25 | # include <pwd.h>
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| 26 | #endif
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| 27 |
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| 28 | #include "tool_homedir.h"
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| 29 |
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| 30 | #include "memdebug.h" /* keep this as LAST include */
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| 31 |
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| 32 | static char *GetEnv(const char *variable, char do_expand)
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| 33 | {
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| 34 | char *env = NULL;
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| 35 | #ifdef WIN32
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| 36 | char buf1[1024], buf2[1024];
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| 37 | DWORD rc;
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| 38 |
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| 39 | /* Don't use getenv(); it doesn't find variable added after program was
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| 40 | * started. Don't accept truncated results (i.e. rc >= sizeof(buf1)). */
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| 41 |
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| 42 | rc = GetEnvironmentVariableA(variable, buf1, sizeof(buf1));
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| 43 | if(rc > 0 && rc < sizeof(buf1)) {
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| 44 | env = buf1;
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| 45 | variable = buf1;
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| 46 | }
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| 47 | if(do_expand && strchr(variable, '%')) {
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| 48 | /* buf2 == variable if not expanded */
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| 49 | rc = ExpandEnvironmentStringsA(variable, buf2, sizeof(buf2));
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| 50 | if(rc > 0 && rc < sizeof(buf2) &&
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| 51 | !strchr(buf2, '%')) /* no vars still unexpanded */
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| 52 | env = buf2;
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| 53 | }
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| 54 | #else
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| 55 | (void)do_expand;
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| 56 | /* no length control */
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| 57 | env = getenv(variable);
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| 58 | #endif
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| 59 | return (env && env[0]) ? strdup(env) : NULL;
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| 60 | }
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| 61 |
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| 62 | /* return the home directory of the current user as an allocated string */
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| 63 | char *homedir(void)
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| 64 | {
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| 65 | char *home;
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| 66 |
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| 67 | home = GetEnv("CURL_HOME", FALSE);
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| 68 | if(home)
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| 69 | return home;
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| 70 |
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| 71 | home = GetEnv("HOME", FALSE);
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| 72 | if(home)
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| 73 | return home;
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| 74 |
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| 75 | #if defined(HAVE_GETPWUID) && defined(HAVE_GETEUID)
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| 76 | {
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| 77 | struct passwd *pw = getpwuid(geteuid());
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| 78 |
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| 79 | if(pw) {
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| 80 | home = pw->pw_dir;
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| 81 | if(home && home[0])
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| 82 | home = strdup(home);
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| 83 | else
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| 84 | home = NULL;
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| 85 | }
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| 86 | }
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| 87 | #endif /* PWD-stuff */
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| 88 | #ifdef WIN32
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| 89 | home = GetEnv("APPDATA", TRUE);
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| 90 | if(!home)
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| 91 | home = GetEnv("%USERPROFILE%\\Application Data", TRUE); /* Normally only
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| 92 | on Win-2K/XP */
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| 93 | #endif /* WIN32 */
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| 94 | return home;
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| 95 | }
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