diff --git a/apps/upper_case.C b/apps/upper_case.C
index fae8c00111..0e2290ce43 100755
--- a/apps/upper_case.C
+++ b/apps/upper_case.C
@@ -21,7 +21,6 @@
 // command line options:
 // -run_slow: sleep 1 second after each character, useful for debugging
 // -cpu_time: chew up some CPU cycles after each character,
-//            used for testing CPU time reporting
 // -signal:   raise SIGHUP signal (for testing signal handler)
 // -exit:     exit with status -10 (for testing exit handler)
 //
@@ -69,49 +68,26 @@ double xDelta=0.03, yDelta=0.07;
 #endif
 
 bool run_slow=false, raise_signal=false, random_exit=false;
-int cpu_time=0;
+bool cpu_time=false;
 time_t my_start_time;
 APP_INIT_DATA uc_aid;
 
 int do_checkpoint(MFILE& mf, int nchars) {
     int retval;
-    char resolved_name[512],res_name2[512];
-    FILE *app_time=NULL, *client_time=NULL;
+    string resolved_name;
 
-    if (cpu_time) {
-        app_time = fopen("app.time", "w"),
-        client_time = fopen("client.time", "w");
-        boinc_get_init_data(uc_aid);
-    }
-    boinc_resolve_filename("temp", resolved_name, sizeof(resolved_name));
-    FILE* f = fopen(resolved_name, "w");
+    FILE* f = fopen("temp", "w");
     if (!f) return 1;
     fprintf(f, "%d", nchars);
     fclose(f);
 
     fprintf(stderr, "APP: upper_case checkpointing\n");
 
-    // hopefully atomic part starts here
     retval = mf.flush();
     if (retval) return retval;
-    boinc_resolve_filename(CHECKPOINT_FILE, res_name2, sizeof(res_name2));
-    retval = boinc_rename(resolved_name, res_name2);
+    boinc_resolve_filename(CHECKPOINT_FILE, resolved_name);
+    retval = boinc_rename("temp", resolved_name.c_str());
     if (retval) return retval;
-    // hopefully atomic part ends here
-
-    if (cpu_time) {
-        double cur_cpu;
-        // print our own information about cpu time
-        fprintf(app_time, "%f\n", difftime(time(0), my_start_time));
-        fflush(app_time);
-        fclose(app_time);
-
-        boinc_wu_cpu_time(cur_cpu);
-        // print what the client thinks is our cpu time
-        fprintf(client_time, "%f\n", uc_aid.wu_cpu_time + cur_cpu);
-        fflush(client_time);
-        fclose(client_time);
-    }
 
     return 0;
 }
@@ -211,7 +187,7 @@ int main(int argc, char **argv) {
         if (cpu_time) {
             n = 0;
             j = 3.14159;
-            for(i=0; i<200000; i++) {
+            for (i=0; i<200000; i++) {
                 n++;
                 j *= n+j-3.14159;
                 j /= (float)n;
diff --git a/checkin_notes b/checkin_notes
index 75f0f23861..8847110bd7 100755
--- a/checkin_notes
+++ b/checkin_notes
@@ -7606,3 +7606,12 @@ David  7 Nov 2003
         db_form.php
     sched/
         make_work.C
+
+David  7 Nov 2003
+    - Added const to some char* args (so can use strings)
+    - Removed cruft from upper_case.C
+
+    apps/
+        upper_case.C
+    lib/
+        filesys.C,h
diff --git a/lib/filesys.C b/lib/filesys.C
index 3566a6cfae..5f6fc5cd86 100755
--- a/lib/filesys.C
+++ b/lib/filesys.C
@@ -86,7 +86,7 @@ int is_dir(char* path) {
 
 // Open a directory
 //
-DIRREF dir_open(char* p) {
+DIRREF dir_open(const char* p) {
     DIRREF dirp;
 
 #ifdef HAVE_DIRENT_H
@@ -239,7 +239,7 @@ DirScanner::~DirScanner() {
 
 // Delete the file located at path
 //
-int file_delete(char* path) {
+int file_delete(const char* path) {
     int retval;
 
 #ifdef HAVE_UNISTD_H
@@ -257,7 +257,7 @@ int file_delete(char* path) {
 
 // get file size
 //
-int file_size(char* path, double& size) {
+int file_size(const char* path, double& size) {
     struct stat sbuf;
     int retval;
 
@@ -269,7 +269,7 @@ int file_size(char* path, double& size) {
 
 // removes all files from specified directory
 //
-int clean_out_dir(char* dirpath) {
+int clean_out_dir(const char* dirpath) {
     char filename[256], path[256];
     int retval;
     DIRREF dirp;
@@ -295,7 +295,7 @@ int clean_out_dir(char* dirpath) {
 
 // return total size of files in directory and its subdirectories
 //
-int dir_size(char* dirpath, double& size) {
+int dir_size(const char* dirpath, double& size) {
     char filename[256], subdir[256];
     int retval=0;
     DIRREF dirp;
@@ -325,7 +325,7 @@ int dir_size(char* dirpath, double& size) {
     return 0;
 }
 
-int boinc_copy(char* orig, char* newf) {
+int boinc_copy(const char* orig, const char* newf) {
 #ifdef _WIN32
 	if(CopyFile(orig, newf, FALSE))
 		return 0;
@@ -338,14 +338,14 @@ int boinc_copy(char* orig, char* newf) {
 #endif
 }
 
-int boinc_rename(char* old, char* newf) {
+int boinc_rename(const char* old, const char* newf) {
 #ifdef _WIN32
     unlink(newf);
 #endif
     return rename(old, newf);
 }
 
-int boinc_mkdir(char* name) {
+int boinc_mkdir(const char* name) {
 #ifdef _WIN32
     return CreateDirectory(name, NULL);
 #else
@@ -353,7 +353,7 @@ int boinc_mkdir(char* name) {
 #endif
 }
 
-int boinc_rmdir(char* name) {
+int boinc_rmdir(const char* name) {
 #ifdef _WIN32
     return RemoveDirectory(name);
 #else
diff --git a/lib/filesys.h b/lib/filesys.h
index dfdbf3d809..7c23803cb0 100755
--- a/lib/filesys.h
+++ b/lib/filesys.h
@@ -36,18 +36,18 @@ typedef DIR_DESC *DIRREF;
 #define PATH_SEPARATOR "/"
 #endif
 
-extern DIRREF dir_open(char*);
+extern DIRREF dir_open(const char*);
 extern int dir_scan(char*, DIRREF, int);
 int dir_scan(string&, DIRREF);
 extern void dir_close(DIRREF);
-extern int file_delete(char*);
-extern int file_size(char*, double&);
-extern int clean_out_dir(char*);
-extern int dir_size(char* dirpath, double&);
-extern int boinc_copy(char* orig, char* newf);
-extern int boinc_rename(char* old, char* newf);
-extern int boinc_mkdir(char*);
-extern int boinc_rmdir(char*);
+extern int file_delete(const char*);
+extern int file_size(const char*, double&);
+extern int clean_out_dir(const char*);
+extern int dir_size(const char* dirpath, double&);
+extern int boinc_copy(const char* orig, const char* newf);
+extern int boinc_rename(const char* old, const char* newf);
+extern int boinc_mkdir(const char*);
+extern int boinc_rmdir(const char*);
 #ifdef _WIN32
 extern void full_path(char* relname, char* path);
 #endif