diff options
Diffstat (limited to 'freebsd/contrib/tcpdump/print-syslog.c')
| -rw-r--r-- | freebsd/contrib/tcpdump/print-syslog.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/freebsd/contrib/tcpdump/print-syslog.c b/freebsd/contrib/tcpdump/print-syslog.c new file mode 100644 index 00000000..8585ee00 --- /dev/null +++ b/freebsd/contrib/tcpdump/print-syslog.c @@ -0,0 +1,165 @@ +#include <machine/rtems-bsd-user-space.h> + +/* + * Copyright (c) 1998-2004 Hannes Gredler <hannes@tcpdump.org> + * The TCPDUMP project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that: (1) source code + * distributions retain the above copyright notice and this paragraph + * in its entirety, and (2) distributions including binary code include + * the above copyright notice and this paragraph in its entirety in + * the documentation or other materials provided with the distribution. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND + * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT + * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE. + */ + +#ifndef lint +static const char rcsid[] _U_ = + "@(#) $Header: /tcpdump/master/tcpdump/print-syslog.c,v 1.1 2004-10-29 11:42:53 hannes Exp $"; +#endif + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <tcpdump-stdinc.h> + +#include <stdio.h> +#include <stdlib.h> + +#include "interface.h" +#include "extract.h" +#include "addrtoname.h" + +/* + * tokenlists and #defines taken from Ethereal - Network traffic analyzer + * by Gerald Combs <gerald@ethereal.com> + */ + +#define SYSLOG_SEVERITY_MASK 0x0007 /* 0000 0000 0000 0111 */ +#define SYSLOG_FACILITY_MASK 0x03f8 /* 0000 0011 1111 1000 */ +#define SYSLOG_MAX_DIGITS 3 /* The maximum number if priority digits to read in. */ + +static const struct tok syslog_severity_values[] = { + { 0, "emergency" }, + { 1, "alert" }, + { 2, "critical" }, + { 3, "error" }, + { 4, "warning" }, + { 5, "notice" }, + { 6, "info" }, + { 7, "debug" }, + { 0, NULL }, +}; + +static const struct tok syslog_facility_values[] = { + { 0, "kernel" }, + { 1, "user" }, + { 2, "mail" }, + { 3, "daemon" }, + { 4, "auth" }, + { 5, "syslog" }, + { 6, "lpr" }, + { 7, "news" }, + { 8, "uucp" }, + { 9, "cron" }, + { 10, "authpriv" }, + { 11, "ftp" }, + { 12, "ntp" }, + { 13, "security" }, + { 14, "console" }, + { 15, "cron" }, + { 16, "local0" }, + { 17, "local1" }, + { 18, "local2" }, + { 19, "local3" }, + { 20, "local4" }, + { 21, "local5" }, + { 22, "local6" }, + { 23, "local7" }, + { 0, NULL }, +}; + +void +syslog_print(register const u_char *pptr, register u_int len) +{ + u_int16_t msg_off = 0; + u_int16_t pri = 0; + u_int16_t facility,severity; + + /* extract decimal figures that are + * encapsulated within < > tags + * based on this decimal figure extract the + * severity and facility values + */ + + if (!TTEST2(*pptr, 1)) + goto trunc; + + if (*(pptr+msg_off) == '<') { + msg_off++; + + if (!TTEST2(*(pptr+msg_off), 1)) + goto trunc; + + while ( *(pptr+msg_off) >= '0' && + *(pptr+msg_off) <= '9' && + msg_off <= SYSLOG_MAX_DIGITS) { + + if (!TTEST2(*(pptr+msg_off), 1)) + goto trunc; + + pri = pri * 10 + (*(pptr+msg_off) - '0'); + msg_off++; + + if (!TTEST2(*(pptr+msg_off), 1)) + goto trunc; + + if (*(pptr+msg_off) == '>') + msg_off++; + } + } else { + printf("[|syslog]"); + return; + } + + facility = (pri & SYSLOG_FACILITY_MASK) >> 3; + severity = pri & SYSLOG_SEVERITY_MASK; + + + if (vflag < 1 ) + { + printf("SYSLOG %s.%s, length: %u", + tok2str(syslog_facility_values, "unknown (%u)", facility), + tok2str(syslog_severity_values, "unknown (%u)", severity), + len); + return; + } + + printf("SYSLOG, length: %u\n\tFacility %s (%u), Severity %s (%u)\n\tMsg: ", + len, + tok2str(syslog_facility_values, "unknown (%u)", facility), + facility, + tok2str(syslog_severity_values, "unknown (%u)", severity), + severity); + + /* print the syslog text in verbose mode */ + for (; msg_off < len; msg_off++) { + if (!TTEST2(*(pptr+msg_off), 1)) + goto trunc; + safeputchar(*(pptr+msg_off)); + } + + if (vflag > 1) { + if(!print_unknown_data(pptr,"\n\t",len)) + return; + } + + return; + +trunc: + printf("[|syslog]"); +} |