Escape filname printout properly, by Anthony Liguori and Julian Seward.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2263 c046a42c-6fe2-441c-8c8c-71466251a162

block.c

@@ -868,9 +868,12 @@ void bdrv_info(void)
             term_printf(" locked=%d", bs->locked);
         }
         if (bs->drv) {
-            term_printf(" file=%s", bs->filename);
-            if (bs->backing_file[0] != '\0')
-                term_printf(" backing_file=%s", bs->backing_file);
+            term_printf(" file=");
+	    term_print_filename(bs->filename);
+            if (bs->backing_file[0] != '\0') {
+                term_printf(" backing_file=");
+		term_print_filename(bs->backing_file);
+	    }
             term_printf(" ro=%d", bs->read_only);
             term_printf(" drv=%s", bs->drv->format_name);
             if (bs->encrypted)

monitor.c

@@ -106,6 +106,33 @@ void term_printf(const char *fmt, ...)
     va_end(ap);
 }
 
+void term_print_filename(const char *filename)
+{
+    int i;
+
+    for (i = 0; filename[i]; i++) {
+	switch (filename[i]) {
+	case ' ':
+	case '"':
+	case '\\':
+	    term_printf("\\%c", filename[i]);
+	    break;
+	case '\t':
+	    term_printf("\\t");
+	    break;
+	case '\r':
+	    term_printf("\\r");
+	    break;
+	case '\n':
+	    term_printf("\\n");
+	    break;
+	default:
+	    term_printf("%c", filename[i]);
+	    break;
+	}
+    }
+}
+
 static int monitor_fprintf(FILE *stream, const char *fmt, ...)
 {
     va_list ap;

qemu-img.c

@@ -113,6 +113,11 @@ void term_printf(const char *fmt, ...)
     va_end(ap);
 }
 
+void term_print_filename(const char *filename)
+{
+    term_printf(filename);
+}
+
 void __attribute__((noreturn)) error(const char *fmt, ...) 
 {
     va_list ap;

vl.h

@@ -1318,6 +1318,7 @@ void monitor_init(CharDriverState *hd, int show_banner);
 void term_puts(const char *str);
 void term_vprintf(const char *fmt, va_list ap);
 void term_printf(const char *fmt, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
+void term_print_filename(const char *filename);
 void term_flush(void);
 void term_print_help(void);
 void monitor_readline(const char *prompt, int is_password,