Improve handle_irscan_command:

- Use parse_u32 helper to ensure scan values are parsed properly.
- Clear the fields buffer to ensure partial cleanup occur correctly.

git-svn-id: svn://svn.berlios.de/openocd/trunk@2214 b42882b7-edfa-0310-969c-e2dbd0fdcd60

diff --git a/src/jtag/tcl.c b/src/jtag/tcl.c
index eadfb431714a5d194cadde8c3ebbba382e9e65d1..557b660290626017c873dd378f7b6e5797e10b84 100644 (file)
--- a/src/jtag/tcl.c
+++ b/src/jtag/tcl.c
@@ -1158,9 +1158,11 @@ static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, c
        }
 
        int num_fields = argc / 2;
+       size_t fields_len = sizeof(scan_field_t) * num_fields;
+       fields = malloc(fields_len);
+       memset(fields, 0, fields_len);
 
-       fields = malloc(sizeof(scan_field_t) * num_fields);
-
+       int retval;
        for (i = 0; i < num_fields; i++)
        {
                tap = jtag_tap_by_string( args[i*2] );
@@ -1173,17 +1175,26 @@ static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, c
                fields[i].tap = tap;
                fields[i].num_bits = field_size;
                fields[i].out_value = malloc(CEIL(field_size, 8));
-               buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
+
+               u32 value;
+               retval = parse_u32(args[i * 2 + 1], &value);
+               if (ERROR_OK != retval)
+                       goto error_return;
+               buf_set_u32(fields[i].out_value, 0, field_size, value);
                fields[i].in_value = NULL;
        }
 
        /* did we have an endstate? */
        jtag_add_ir_scan(num_fields, fields, endstate);
 
-       int retval=jtag_execute_queue();
+       retval = jtag_execute_queue();
 
+error_return:
        for (i = 0; i < num_fields; i++)
-               free(fields[i].out_value);
+       {
+               if (NULL != fields[i].out_value)
+                       free(fields[i].out_value);
+       }
 
        free (fields);