FreeCalypso > hg > freecalypso-tools
view rvinterf/old/g23sh/pktsort.c @ 924:d452188587b4
rvinterf: begin change to backslash escape output format
Right now throughout the rvinterf suite, any time we emit output that
is expected to be ASCII, but may contain non-printable garbage, we use
'cat -v' form of garbage character representation. Unfortunately, this
transformation is lossy (can't be reversed 100% reliably in the user's
wetware), hence we would like to migrate to C-style backslash escapes,
including doubling of any already-present backslashes - this escape
mechanism is lossless. Begin this change by converting the output
of RV and L1 traces in rvinterf and rvtdump.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Tue, 23 May 2023 03:10:50 +0000 |
parents | e7502631a0f9 |
children |
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/* * Here we sort out incoming packets from the target relayed via rvinterf. */ #include <sys/types.h> #include <stdio.h> #include <string.h> #include <strings.h> #include <stdlib.h> #include "pktmux.h" #include "limits.h" #include "localsock.h" #include "localtypes.h" extern u_char rvi_msg[]; extern int rvi_msg_len; static void process_rvt() { u32 useid; if (rvi_msg_len < 7) { tty_cleanup(); fprintf(stderr, "Error: rvinterf sent us an invalid RVT msg\n"); exit(1); } useid = rvi_msg[2] << 24 | rvi_msg[3] << 16 | rvi_msg[4] << 8 | rvi_msg[5]; switch (useid) { case 0: handle_useid_0(); return; default: tty_cleanup(); fprintf(stderr, "unexpected fwd of USEID %08X from rvinterf\n", useid); exit(1); } } void g23_packet_rx() { char fmtbuf[MAX_PKT_FROM_TARGET*8]; /* size it generously */ format_g23_packet(rvi_msg + 1, rvi_msg_len - 1, fmtbuf); async_msg_output(fmtbuf); } void process_pkt_from_target() { switch (rvi_msg[1]) { case RVT_RV_HEADER: process_rvt(); return; case RVT_L23_HEADER: g23_packet_rx(); return; default: tty_cleanup(); fprintf(stderr, "unexpected fwd of MUX %02X from rvinterf\n", rvi_msg[1]); exit(1); } }