FreeCalypso > hg > freecalypso-tools
view rvinterf/lowlevel/clientcmd.c @ 921:74d284add54d
fc-fsio: guard against bogus readdir results from the target
If the FFS being operated on contains SE K2x0 extended filenames,
readdir will return strings that are bad for printing. We need to
guard against this possibility, and also against possible other
bogosity that could be sent by other alien firmwares.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 31 Dec 2022 22:55:23 +0000 |
parents | e7502631a0f9 |
children |
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/* * This rvinterf module implements the handling of client commands. */ #include <sys/types.h> #include <stdio.h> #include <string.h> #include <strings.h> #include <stdlib.h> #include <unistd.h> #include "../include/pktmux.h" #include "../include/limits.h" #include "../include/localsock.h" #include "client.h" void process_msg_from_client(cli) struct client *cli; { int c; switch (cli->rx_buf[0]) { case CLI2RVI_WANT_RVTRACE: if (cli->rx_msglen != 9) { send_local_msg_to_client(cli, "-Bad command length"); return; } c = cli->int_rvt_count; if (c >= MAX_RVT_INTEREST) { send_local_msg_to_client(cli, "-Error: too many RVT interests"); return; } cli->int_rvt_mask[c] = cli->rx_buf[1] << 24 | cli->rx_buf[2] << 16 | cli->rx_buf[3] << 8 | cli->rx_buf[4]; cli->int_rvt_match[c] = cli->rx_buf[5] << 24 | cli->rx_buf[6] << 16 | cli->rx_buf[7] << 8 | cli->rx_buf[8]; cli->int_rvt_count++; send_local_msg_to_client(cli, "+OK"); return; case CLI2RVI_WANT_MUXPROTO: if (cli->rx_msglen != 2) { send_local_msg_to_client(cli, "-Bad command length"); return; } if (cli->rx_buf[1] < 0x12 || cli->rx_buf[1] > 0x1D) { send_local_msg_to_client(cli, "-Unsupported protocol MUX value"); return; } cli->int_proto[cli->rx_buf[1] - 0x12] = 1; send_local_msg_to_client(cli, "+OK"); return; case CLI2RVI_DROP_MUXPROTO: if (cli->rx_msglen != 2) { send_local_msg_to_client(cli, "-Bad command length"); return; } if (cli->rx_buf[1] < 0x12 || cli->rx_buf[1] > 0x1D) { send_local_msg_to_client(cli, "-Unsupported protocol MUX value"); return; } cli->int_proto[cli->rx_buf[1] - 0x12] = 0; send_local_msg_to_client(cli, "+OK"); return; case CLI2RVI_RESET_PACKET_RX: cli->int_rvt_count = 0; bzero(cli->int_proto, sizeof(cli->int_proto)); send_local_msg_to_client(cli, "+OK"); return; case CLI2RVI_PKT_TO_TARGET: c = cli->rx_msglen - 1; if (c < 1 || c > MAX_PKT_TO_TARGET) { send_local_msg_to_client(cli, "-Invalid Tx packet length"); return; } send_pkt_to_target(cli->rx_buf + 1, c); log_sent_packet(cli->rx_buf + 1, c); return; case CLI2RVI_RAWBYTES_TO_TARGET: /* To be implemented */ default: send_local_msg_to_client(cli, "-Unimplemented command"); } }