Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/src/tool_homedir.c @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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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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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 }