win32: support fancy prompts and (limited) tilde expansion

1 files changed, 29 insertions, 1 deletions

diff --git a/win32/mingw.c b/win32/mingw.c
index b99c88444..657d106ed 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -1,4 +1,5 @@
 #include "libbb.h"
+#include <userenv.h>
 
 unsigned int _CRT_fmode = _O_BINARY;
 
@@ -495,6 +496,33 @@ int mingw_rename(const char *pold, const char *pnew)
         return -1;
 }
 
+static char *gethomedir(void)
+{
+        static char buf[PATH_MAX];
+        DWORD len = sizeof(buf);
+        HANDLE h;
+        char *s;
+
+        buf[0] = '\0';
+        if ( !OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &h) )
+                return buf;
+
+        if ( !GetUserProfileDirectory(h, buf, &len) ) {
+                CloseHandle(h);
+                return buf;
+        }
+
+        CloseHandle(h);
+
+        for ( s=buf; *s; ++s ) {
+                if ( *s == '\\' ) {
+                        *s = '/';
+                }
+        }
+
+        return buf;
+}
+
 struct passwd *getpwuid(int uid UNUSED_PARAM)
 {
         static char user_name[100];
@@ -505,7 +533,7 @@ struct passwd *getpwuid(int uid UNUSED_PARAM)
                 return NULL;
         p.pw_name = user_name;
         p.pw_gecos = "unknown";
-        p.pw_dir = NULL;
+        p.pw_dir = gethomedir();
         return &p;
 }