buildfix with -DNDEBUG

[openocd] / src / server / telnet_server.c

diff --git a/src/server/telnet_server.c b/src/server/telnet_server.c
index 929c1c16efd8fe333ee2627c5547a802e1a10b25..92e7480b93e3a40b865324c64af0e6cab565b126 100644 (file)
--- a/src/server/telnet_server.c
+++ b/src/server/telnet_server.c
@@ -195,8 +195,8 @@ void telnet_clear_line(struct connection *connection, struct telnet_connection *
 int telnet_input(struct connection *connection)
 {
        int bytes_read;
-       char buffer[TELNET_BUFFER_SIZE];
-       char *buf_p;
+       unsigned char buffer[TELNET_BUFFER_SIZE];
+       unsigned char *buf_p;
        struct telnet_connection *t_con = connection->priv;
        struct command_context *command_context = connection->cmd_ctx;
 
@@ -216,7 +216,7 @@ int telnet_input(struct connection *connection)
                switch (t_con->state)
                {
                        case TELNET_STATE_DATA:
-                               if (*buf_p == '\xff')
+                               if (*buf_p == 0xff)
                                {
                                        t_con->state = TELNET_STATE_IAC;
                                }
@@ -395,16 +395,16 @@ int telnet_input(struct connection *connection)
                        case TELNET_STATE_IAC:
                                switch (*buf_p)
                                {
-                                       case '\xfe':
+                                       case 0xfe:
                                                t_con->state = TELNET_STATE_DONT;
                                                break;
-                                       case '\xfd':
+                                       case 0xfd:
                                                t_con->state = TELNET_STATE_DO;
                                                break;
-                                       case '\xfc':
+                                       case 0xfc:
                                                t_con->state = TELNET_STATE_WONT;
                                                break;
-                                       case '\xfb':
+                                       case 0xfb:
                                                t_con->state = TELNET_STATE_WILL;
                                                break;
                                }