Based on Gisle Vanem's $HOME patch, we now attempt to find the home dir

in a slightly better way for more platforms. The $HOME is only used for
.curlrc atm, but the possible upcoming change of .netrc treatment may also
need the home dir.

src/Makefile.am

@@ -25,7 +25,7 @@ endif
 curl_SOURCES = main.c hugehelp.c urlglob.c writeout.c setup.h \
 	config-win32.h config-mac.h config-vms.h config-riscos.h \
 	urlglob.h version.h writeout.h writeenv.c writeenv.h \
-	getpass.c getpass.h
+	getpass.c getpass.h homedir.c homedir.h
 
 curl_LDADD = ../lib/libcurl.la
 curl_DEPENDENCIES = ../lib/libcurl.la

src/config.h.in

@@ -67,3 +67,9 @@
 
 /* Define to 1 if you have the <termio.h> header file. */
 #undef HAVE_TERMIO_H
+
+/* Define to 1 if you have the `getpwuid' function. */
+#undef HAVE_GETPWUID
+
+/* Define to 1 if you have the `geteuid' function. */
+#undef HAVE_GETEUID

src/homedir.c

@@ -0,0 +1,114 @@
+/***************************************************************************
+ *                                  _   _ ____  _     
+ *  Project                     ___| | | |  _ \| |    
+ *                             / __| | | | |_) | |    
+ *                            | (__| |_| |  _ <| |___ 
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2003, 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.
+ *
+ * $Id$
+ ***************************************************************************/
+
+#include "setup.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef WIN32
+#include <windows.h>
+#endif
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef VMS
+#include <unixlib.h>
+#endif
+
+#ifdef CURLDEBUG
+#include "../lib/memdebug.h"
+#endif
+
+static
+char *GetEnv(const char *variable, bool 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$translate_vms(env);
+  }
+#else
+  /* no length control */
+  env = getenv(variable);
+#endif
+#endif
+  return (env && env[0])?strdup(env):NULL;
+}
+
+/* return the home directory of the current user as an allocated string */
+char *homedir(void)
+{
+  char *home = GetEnv("HOME", FALSE);
+  if(home)
+    return home;
+  
+#if defined(HAVE_GETPWUID) && defined(HAVE_GETEUID)
+ {
+   struct passwd *pw = getpwuid(geteuid());
+  
+   if (pw) {
+#ifdef VMS
+     home = decc$translate_vms(pw->pw_dir);
+#else
+     home = pw->pw_dir;
+#endif
+     if (home && home[0])
+       home = strdup(home);
+   }
+ }
+#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;
+}

src/homedir.h

@@ -0,0 +1,28 @@
+#ifndef __HOMEDIR_H
+#define __HOMEDIR_H
+/***************************************************************************
+ *                                  _   _ ____  _     
+ *  Project                     ___| | | |  _ \| |    
+ *                             / __| | | | |_) | |    
+ *                            | (__| |_| |  _ <| |___ 
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2003, 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.
+ *
+ * $Id$
+ ***************************************************************************/
+
+char *homedir(void);
+
+#endif

src/main.c

@@ -41,6 +41,7 @@
 #include "urlglob.h"
 #include "writeout.h"
 #include "getpass.h"
+#include "homedir.h"
 #ifdef USE_ENVIRONMENT
 #include "writeenv.h"
 #endif
@@ -2054,11 +2055,10 @@ static int parseconfig(const char *filename,
 
 #define CURLRC DOT_CHAR "curlrc"
 
-    filename = CURLRC;          /* sensible default */
+    filename = CURLRC;   /* sensible default */
-    home = curl_getenv("HOME"); /* portable environment reader */
+    home = homedir();    /* portable homedir finder */
     if(home) {
       if(strlen(home)<(sizeof(filebuffer)-strlen(CURLRC))) {
-
         snprintf(filebuffer, sizeof(filebuffer),
                  "%s%s%s", home, DIR_CHAR, CURLRC);