ncurses 5.6 - patch 20080804

[ncurses.git] / ncurses / trace / lib_trace.c

diff --git a/ncurses/trace/lib_trace.c b/ncurses/trace/lib_trace.c
index 03acb16cba91a5339ef0b8f817f2d8275db2f70d..da4e5dce0cd3f500e5fe4c025aa82d960b2ca966 100644 (file)
--- a/ncurses/trace/lib_trace.c
+++ b/ncurses/trace/lib_trace.c
@@ -46,7 +46,7 @@
 
 #include <ctype.h>
 
-MODULE_ID("$Id: lib_trace.c,v 1.66 2008/03/22 16:56:48 tom Exp $")
+MODULE_ID("$Id: lib_trace.c,v 1.68 2008/08/03 22:22:57 tom Exp $")
 
 NCURSES_EXPORT_VAR(unsigned) _nc_tracing = 0; /* always define this */
 
@@ -95,10 +95,13 @@ trace(const unsigned int tracelevel)
        const char *mode = _nc_globals.init_trace ? "ab" : "wb";
 
        if (TracePath[0] == '\0') {
-           if (getcwd(TracePath, sizeof(TracePath) - 12) == 0) {
+           int size = sizeof(TracePath) - 12;
+           if (getcwd(TracePath, size) == 0) {
                perror("curses: Can't get working directory");
                exit(EXIT_FAILURE);
            }
+           TracePath[size] = '\0';
+           assert(strlen(TracePath) <= size);
            strcat(TracePath, "/trace");
            if (_nc_is_dir_path(TracePath)) {
                strcat(TracePath, ".log");
@@ -292,9 +295,9 @@ _nc_use_tracef(unsigned mask)
 
     _nc_lock_global(tst_tracef);
     if (!_nc_globals.nested_tracef++) {
-       if ((result = (_nc_tracing & (mask))) != 0) {
+       if ((result = (_nc_tracing & (mask))) != 0
+           && _nc_try_global(tracef) == 0) {
            /* we will call _nc_locked_tracef(), no nesting so far */
-           _nc_lock_global(tracef);
        } else {
            /* we will not call _nc_locked_tracef() */
            _nc_globals.nested_tracef = 0;