94d661ac8c
o Use syslog
o Remove references to stdout/stderr (incl perror())
o Introduce VarTerm - the interactive terminal or zero
o Allow "set timeout" to affect current session
o Change "set debug" to "set log"
o Allow "set log [+|-]flag"
o Make MSEXT and PASSWDAUTH stuff the default
o Move all #ifdef DEBUG stuff into the code - this
shouldn't be too much overhead. It's now controlled
with "set log +debug"
o Add "set log command, debug, tun, warn, error, alert"
o Remove cdefs.h, and assume an ansi compiler.
o Improve all diagnostic output
o Don't trap SIGSEGV
o SIGHUP now terminates again (log files are controlled
by syslog)
o Call CloseModem() when changing devices
o Fix parsing of third arg of "delete"
I think this fixes the "magic is same" problems that some
people have been experiencing.
The man page is being rewritten. It'll follow soon.
149 lines
2.6 KiB
C
149 lines
2.6 KiB
C
#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/param.h>
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#include <netinet/in.h>
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#include <syslog.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include "mbuf.h"
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#include "log.h"
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#include "loadalias.h"
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#include "vars.h"
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static char *LogNames[] = {
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"Async",
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"Carrier",
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"Chat",
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"Command",
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"Connect",
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"Debug",
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"HDLC",
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"LCP",
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"Link",
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"LQM",
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"Phase",
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"TCP/IP",
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"Tun",
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"Warning",
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"Error",
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"Alert"
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};
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#define MSK(n) (1<<((n)-1))
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static u_long LogMask = MSK(LogLINK) | MSK(LogCARRIER) | MSK(LogPHASE);
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static int LogTunno = -1;
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static int
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syslogLevel(int lev)
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{
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switch (lev) {
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case LogDEBUG: return LOG_DEBUG;
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case LogWARN: return LOG_WARNING;
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case LogERROR: return LOG_ERR;
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case LogALERT: return LOG_ALERT;
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}
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return lev >= LogMIN && lev <= LogMAX ? LOG_INFO : 0;
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}
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const char *
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LogName(int id)
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{
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return id < LogMIN || id > LogMAX ? "Unknown" : LogNames[id-1];
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}
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void
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LogKeep(int id)
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{
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if (id >= LogMIN && id <= LogMAXCONF)
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LogMask |= MSK(id);
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}
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void
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LogDiscard(int id)
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{
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if (id >= LogMIN && id <= LogMAXCONF)
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LogMask &= ~MSK(id);
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}
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void
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LogDiscardAll()
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{
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LogMask = 0;
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}
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int
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LogIsKept(int id)
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{
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if (id < LogMIN)
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return 0;
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if (id <= LogMAXCONF)
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return LogMask & MSK(id);
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return id <= LogMAX;
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}
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void
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LogOpen(const char *Name)
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{
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openlog(Name, LOG_PID, LOG_DAEMON);
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}
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void
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LogSetTun(int tunno)
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{
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LogTunno = tunno;
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}
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void
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LogClose()
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{
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closelog();
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LogTunno = -1;
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}
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void
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LogPrintf(int lev, char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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if (LogIsKept(lev)) {
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static char nfmt[200];
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if (LogIsKept(LogTUN) && LogTunno != -1)
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snprintf(nfmt, sizeof nfmt, "tun%d: %s: %s",
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LogTunno, LogName(lev), fmt);
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else
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snprintf(nfmt, sizeof nfmt, "%s: %s", LogName(lev), fmt);
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if ((lev == LogERROR || lev == LogALERT || lev == LogWARN) && VarTerm)
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vfprintf(VarTerm, fmt, ap);
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if (lev != LogWARN || !VarTerm)
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vsyslog(syslogLevel(lev), nfmt, ap);
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}
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va_end(ap);
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}
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void
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LogDumpBp(int lev, char *hdr, struct mbuf *bp)
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{
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LogDumpBuff(lev, hdr, MBUF_CTOP(bp), bp->cnt);
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}
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void
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LogDumpBuff(int lev, char *hdr, u_char *ptr, int n)
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{
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if (LogIsKept(lev)) {
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char buf[49];
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char *b;
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int f;
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if (hdr && *hdr)
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LogPrintf(lev, "%s", hdr);
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while (n > 0) {
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b = buf;
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for (f = 0; f < 16 && n--; f++, b += 3)
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sprintf(b, " %02x", (int)*ptr++);
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LogPrintf(lev, buf);
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}
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}
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}
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