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Fix a crash bug on SETCIRCUITPURPOSE.

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This commit is contained in:
Nick Mathewson 2012-05-07 15:22:17 -04:00
parent f6afd4efa6
commit f2a6eedded
2 changed files with 8 additions and 0 deletions
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4
changes/bug5796 Normal file
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@ -0,0 +1,4 @@
o Minor bugfixes (controller):
- Fix a NULL-pointer derefernce on a badly formed
SETCIRCUITPURPOSE command. Found by mikeyc. Fixes bug 5796;
bugfix on 0.2.2.9-alpha.

4
src/or/control.c
View File

@ -2389,6 +2389,10 @@ handle_control_setcircuitpurpose(control_connection_t *conn,
{
const char *purp = find_element_starting_with(args,1,"PURPOSE=");
if (!purp) {
connection_write_str_to_buf("552 No purpose given\r\n", conn);
goto done;
}
new_purpose = circuit_purpose_from_string(purp);
if (new_purpose == CIRCUIT_PURPOSE_UNKNOWN) {
connection_printf_to_buf(conn, "552 Unknown purpose \"%s\"\r\n", purp);