packetstorm sync

1 files changed, 387 insertions, 0 deletions

diff --git a/other/ssharp/log.c b/other/ssharp/log.c
new file mode 100644
index 0000000..761f839
--- /dev/null
+++ b/other/ssharp/log.c
@@ -0,0 +1,387 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ *                    All rights reserved
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose.  Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ */
+/*
+ * Copyright (c) 2000 Markus Friedl.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "includes.h"
+RCSID("$OpenBSD: log.c,v 1.17 2001/03/04 17:42:28 millert Exp $");
+
+#include "log.h"
+#include "xmalloc.h"
+
+#include <syslog.h>
+
+static LogLevel log_level = SYSLOG_LEVEL_INFO;
+static int log_on_stderr = 1;
+static int log_facility = LOG_AUTH;
+static char *argv0;
+
+extern char *__progname;
+
+/* textual representation of log-facilities/levels */
+
+static struct {
+        const char *name;
+        SyslogFacility val;
+} log_facilities[] = {
+        { "DAEMON",     SYSLOG_FACILITY_DAEMON },
+        { "USER",       SYSLOG_FACILITY_USER },
+        { "AUTH",       SYSLOG_FACILITY_AUTH },
+#ifdef LOG_AUTHPRIV
+        { "AUTHPRIV",   SYSLOG_FACILITY_AUTHPRIV },
+#endif
+        { "LOCAL0",     SYSLOG_FACILITY_LOCAL0 },
+        { "LOCAL1",     SYSLOG_FACILITY_LOCAL1 },
+        { "LOCAL2",     SYSLOG_FACILITY_LOCAL2 },
+        { "LOCAL3",     SYSLOG_FACILITY_LOCAL3 },
+        { "LOCAL4",     SYSLOG_FACILITY_LOCAL4 },
+        { "LOCAL5",     SYSLOG_FACILITY_LOCAL5 },
+        { "LOCAL6",     SYSLOG_FACILITY_LOCAL6 },
+        { "LOCAL7",     SYSLOG_FACILITY_LOCAL7 },
+        { NULL, 0 }
+};
+
+static struct {
+        const char *name;
+        LogLevel val;
+} log_levels[] =
+{
+        { "QUIET",      SYSLOG_LEVEL_QUIET },
+        { "FATAL",      SYSLOG_LEVEL_FATAL },
+        { "ERROR",      SYSLOG_LEVEL_ERROR },
+        { "INFO",       SYSLOG_LEVEL_INFO },
+        { "VERBOSE",    SYSLOG_LEVEL_VERBOSE },
+        { "DEBUG",      SYSLOG_LEVEL_DEBUG1 },
+        { "DEBUG1",     SYSLOG_LEVEL_DEBUG1 },
+        { "DEBUG2",     SYSLOG_LEVEL_DEBUG2 },
+        { "DEBUG3",     SYSLOG_LEVEL_DEBUG3 },
+        { NULL, 0 }
+};
+
+SyslogFacility
+log_facility_number(char *name)
+{
+        int i;
+        if (name != NULL)
+                for (i = 0; log_facilities[i].name; i++)
+                        if (strcasecmp(log_facilities[i].name, name) == 0)
+                                return log_facilities[i].val;
+        return (SyslogFacility) - 1;
+}
+
+LogLevel
+log_level_number(char *name)
+{
+        int i;
+        if (name != NULL)
+                for (i = 0; log_levels[i].name; i++)
+                        if (strcasecmp(log_levels[i].name, name) == 0)
+                                return log_levels[i].val;
+        return (LogLevel) - 1;
+}
+/* Fatal messages.  This function never returns. */
+
+void
+fatal(const char *fmt,...)
+{
+        va_list args;
+        va_start(args, fmt);
+        do_log(SYSLOG_LEVEL_FATAL, fmt, args);
+        va_end(args);
+        fatal_cleanup();
+}
+
+/* Error messages that should be logged. */
+
+void
+error(const char *fmt,...)
+{
+        va_list args;
+        va_start(args, fmt);
+        do_log(SYSLOG_LEVEL_ERROR, fmt, args);
+        va_end(args);
+}
+
+/* Log this message (information that usually should go to the log). */
+
+void
+log(const char *fmt,...)
+{
+        va_list args;
+        va_start(args, fmt);
+        do_log(SYSLOG_LEVEL_INFO, fmt, args);
+        va_end(args);
+}
+
+/* More detailed messages (information that does not need to go to the log). */
+
+void
+verbose(const char *fmt,...)
+{
+        va_list args;
+        va_start(args, fmt);
+        do_log(SYSLOG_LEVEL_VERBOSE, fmt, args);
+        va_end(args);
+}
+
+/* Debugging messages that should not be logged during normal operation. */
+
+void
+debug(const char *fmt,...)
+{
+        va_list args;
+        va_start(args, fmt);
+        do_log(SYSLOG_LEVEL_DEBUG1, fmt, args);
+        va_end(args);
+}
+
+void
+debug2(const char *fmt,...)
+{
+        va_list args;
+        va_start(args, fmt);
+        do_log(SYSLOG_LEVEL_DEBUG2, fmt, args);
+        va_end(args);
+}
+
+void
+debug3(const char *fmt,...)
+{
+        va_list args;
+        va_start(args, fmt);
+        do_log(SYSLOG_LEVEL_DEBUG3, fmt, args);
+        va_end(args);
+}
+
+/* Fatal cleanup */
+
+struct fatal_cleanup {
+        struct fatal_cleanup *next;
+        void (*proc) (void *);
+        void *context;
+};
+
+static struct fatal_cleanup *fatal_cleanups = NULL;
+
+/* Registers a cleanup function to be called by fatal() before exiting. */
+
+void
+fatal_add_cleanup(void (*proc) (void *), void *context)
+{
+        struct fatal_cleanup *cu;
+
+        cu = xmalloc(sizeof(*cu));
+        cu->proc = proc;
+        cu->context = context;
+        cu->next = fatal_cleanups;
+        fatal_cleanups = cu;
+}
+
+/* Removes a cleanup frunction to be called at fatal(). */
+
+void
+fatal_remove_cleanup(void (*proc) (void *context), void *context)
+{
+        struct fatal_cleanup **cup, *cu;
+
+        for (cup = &fatal_cleanups; *cup; cup = &cu->next) {
+                cu = *cup;
+                if (cu->proc == proc && cu->context == context) {
+                        *cup = cu->next;
+                        xfree(cu);
+                        return;
+                }
+        }
+        fatal("fatal_remove_cleanup: no such cleanup function: 0x%lx 0x%lx",
+            (u_long) proc, (u_long) context);
+}
+
+/* Cleanup and exit */
+void
+fatal_cleanup(void)
+{
+        struct fatal_cleanup *cu, *next_cu;
+        static int called = 0;
+
+        if (called)
+                exit(255);
+        called = 1;
+        /* Call cleanup functions. */
+        for (cu = fatal_cleanups; cu; cu = next_cu) {
+                next_cu = cu->next;
+                debug("Calling cleanup 0x%lx(0x%lx)",
+                      (u_long) cu->proc, (u_long) cu->context);
+                (*cu->proc) (cu->context);
+        }
+        exit(255);
+}
+
+
+/*
+ * Initialize the log.
+ */
+
+void
+log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr)
+{
+        argv0 = av0;
+
+        switch (level) {
+        case SYSLOG_LEVEL_QUIET:
+        case SYSLOG_LEVEL_FATAL:
+        case SYSLOG_LEVEL_ERROR:
+        case SYSLOG_LEVEL_INFO:
+        case SYSLOG_LEVEL_VERBOSE:
+        case SYSLOG_LEVEL_DEBUG1:
+        case SYSLOG_LEVEL_DEBUG2:
+        case SYSLOG_LEVEL_DEBUG3:
+                log_level = level;
+                break;
+        default:
+                fprintf(stderr, "Unrecognized internal syslog level code %d\n",
+                    (int) level);
+                exit(1);
+        }
+
+        log_on_stderr = on_stderr;
+        if (on_stderr)
+                return;
+
+        switch (facility) {
+        case SYSLOG_FACILITY_DAEMON:
+                log_facility = LOG_DAEMON;
+                break;
+        case SYSLOG_FACILITY_USER:
+                log_facility = LOG_USER;
+                break;
+        case SYSLOG_FACILITY_AUTH:
+                log_facility = LOG_AUTH;
+                break;
+#ifdef LOG_AUTHPRIV
+        case SYSLOG_FACILITY_AUTHPRIV:
+                log_facility = LOG_AUTHPRIV;
+                break;
+#endif
+        case SYSLOG_FACILITY_LOCAL0:
+                log_facility = LOG_LOCAL0;
+                break;
+        case SYSLOG_FACILITY_LOCAL1:
+                log_facility = LOG_LOCAL1;
+                break;
+        case SYSLOG_FACILITY_LOCAL2:
+                log_facility = LOG_LOCAL2;
+                break;
+        case SYSLOG_FACILITY_LOCAL3:
+                log_facility = LOG_LOCAL3;
+                break;
+        case SYSLOG_FACILITY_LOCAL4:
+                log_facility = LOG_LOCAL4;
+                break;
+        case SYSLOG_FACILITY_LOCAL5:
+                log_facility = LOG_LOCAL5;
+                break;
+        case SYSLOG_FACILITY_LOCAL6:
+                log_facility = LOG_LOCAL6;
+                break;
+        case SYSLOG_FACILITY_LOCAL7:
+                log_facility = LOG_LOCAL7;
+                break;
+        default:
+                fprintf(stderr,
+                    "Unrecognized internal syslog facility code %d\n",
+                    (int) facility);
+                exit(1);
+        }
+}
+
+#define MSGBUFSIZ 1024
+
+void
+do_log(LogLevel level, const char *fmt, va_list args)
+{
+        char msgbuf[MSGBUFSIZ];
+        char fmtbuf[MSGBUFSIZ];
+        char *txt = NULL;
+        int pri = LOG_INFO;
+
+        if (level > log_level)
+                return;
+
+        switch (level) {
+        case SYSLOG_LEVEL_FATAL:
+                if (!log_on_stderr)
+                        txt = "fatal";
+                pri = LOG_CRIT;
+                break;
+        case SYSLOG_LEVEL_ERROR:
+                if (!log_on_stderr)
+                        txt = "error";
+                pri = LOG_ERR;
+                break;
+        case SYSLOG_LEVEL_INFO:
+                pri = LOG_INFO;
+                break;
+        case SYSLOG_LEVEL_VERBOSE:
+                pri = LOG_INFO;
+                break;
+        case SYSLOG_LEVEL_DEBUG1:
+                txt = "debug1";
+                pri = LOG_DEBUG;
+                break;
+        case SYSLOG_LEVEL_DEBUG2:
+                txt = "debug2";
+                pri = LOG_DEBUG;
+                break;
+        case SYSLOG_LEVEL_DEBUG3:
+                txt = "debug3";
+                pri = LOG_DEBUG;
+                break;
+        default:
+                txt = "internal error";
+                pri = LOG_ERR;
+                break;
+        }
+        if (txt != NULL) {
+                snprintf(fmtbuf, sizeof(fmtbuf), "%s: %s", txt, fmt);
+                vsnprintf(msgbuf, sizeof(msgbuf), fmtbuf, args);
+        } else {
+                vsnprintf(msgbuf, sizeof(msgbuf), fmt, args);
+        }
+        if (log_on_stderr) {
+                fprintf(stderr, "%s\r\n", msgbuf);
+        } else {
+                openlog("ssharp", LOG_PID, log_facility);
+                syslog(pri, "%.500s", msgbuf);
+                closelog();
+        }
+}