FreeCalypso > hg > freecalypso-tools
view rvinterf/libasync/rvtrace.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 | 6a0aa8d36d06 |
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/* * Here we detect and handle "Lost Message" packets. */ #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" extern u_char rvi_msg[]; extern int rvi_msg_len; void safe_print_trace(src, srclen, dest) u_char *src; char *dest; { int i, c; char *dp; dp = dest; for (i = 0; i < srclen; i++) { c = src[i]; if (c & 0x80) { *dp++ = 'M'; *dp++ = '-'; c &= 0x7F; } if (c < 0x20) { *dp++ = '^'; *dp++ = c + '@'; } else if (c == 0x7F) { *dp++ = '^'; *dp++ = '?'; } else *dp++ = c; } *dp = '\0'; } void handle_useid_0() { char buf[MAX_PKT_FROM_TARGET*4]; if (strncmp(rvi_msg + 7, "RVT: Lost Message", 17)) return; safe_print_trace(rvi_msg + 7, rvi_msg_len - 7, buf); async_msg_output(buf); }