diff options
Diffstat (limited to 'src/server')
-rw-r--r-- | src/server/telnet_server.c | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/src/server/telnet_server.c b/src/server/telnet_server.c index 3ff3456a..a2704e9c 100644 --- a/src/server/telnet_server.c +++ b/src/server/telnet_server.c @@ -254,28 +254,31 @@ int telnet_input(connection_t *connection) return ERROR_SERVER_REMOTE_CLOSED; } } - - /* if the history slot is already taken, free it */ - if (t_con->history[t_con->next_history]) + + /* Save only non-blank lines in the history */ + if (t_con->line_size > 0) { - free(t_con->history[t_con->next_history]); - } - - /* add line to history */ - t_con->history[t_con->next_history++] = strdup(t_con->line); + /* if the history slot is already taken, free it */ + if (t_con->history[t_con->next_history]) + { + free(t_con->history[t_con->next_history]); + } + + /* add line to history */ + t_con->history[t_con->next_history] = strdup(t_con->line); + + /* wrap history at TELNET_LINE_HISTORY_SIZE */ + t_con->next_history = (t_con->next_history + 1) % TELNET_LINE_HISTORY_SIZE; - /* current history line starts at the new entry */ - t_con->current_history = t_con->next_history; + /* current history line starts at the new entry */ + t_con->current_history = t_con->next_history; - if (t_con->history[t_con->current_history]) - { - free(t_con->history[t_con->current_history]); + if (t_con->history[t_con->current_history]) + { + free(t_con->history[t_con->current_history]); + } + t_con->history[t_con->current_history] = strdup(""); } - t_con->history[t_con->current_history] = strdup(""); - - /* wrap history at TELNET_LINE_HISTORY_SIZE */ - if (t_con->next_history > TELNET_LINE_HISTORY_SIZE - 1) - t_con->next_history = 0; if (!t_con->suppress_prompt) { @@ -394,7 +397,7 @@ int telnet_input(connection_t *connection) } else if (*buf_p == 'A') /* cursor up */ { - int last_history = (t_con->current_history - 1 >= 0) ? t_con->current_history - 1 : 127; + int last_history = (t_con->current_history > 0) ? t_con->current_history - 1 : TELNET_LINE_HISTORY_SIZE-1; if (t_con->history[last_history]) { telnet_clear_line(connection, t_con); @@ -408,7 +411,7 @@ int telnet_input(connection_t *connection) } else if (*buf_p == 'B') /* cursor down */ { - int next_history = (t_con->current_history + 1 < 128) ? t_con->current_history + 1 : 0; + int next_history = (t_con->current_history + 1) % TELNET_LINE_HISTORY_SIZE; if (t_con->history[next_history]) { telnet_clear_line(connection, t_con); |