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authorDamien Miller <djm@mindrot.org>1999-11-11 17:57:39 +1100
committerDamien Miller <djm@mindrot.org>1999-11-11 17:57:39 +1100
commit5ce662a9202240a2f5fa6a9334d58186bdaba50c (patch)
tree9fe37122fa27f070abc3c9c28531877d43673b7f /log.c
parentab5e0d0c27e00dca463c67395c2b5941e778836e (diff)
- Merged more OpenBSD CVS changes:
- [auth-krb4.c auth-passwd.c] remove x11- and krb-cleanup from fatal() + krb-cleanup cleanup - [clientloop.c log-client.c log-server.c ] [readconf.c readconf.h servconf.c servconf.h ] [ssh.1 ssh.c ssh.h sshd.8] add LogLevel {QUIET, FATAL, ERROR, INFO, CHAT, DEBUG} to ssh/sshd, obsoletes QuietMode and FascistLogging in sshd.
Diffstat (limited to 'log.c')
-rw-r--r--log.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/log.c b/log.c
new file mode 100644
index 00000000..3e840ecb
--- /dev/null
+++ b/log.c
@@ -0,0 +1,135 @@
+/*
+
+Shared versions of debug(), log(), etc.
+
+*/
+
+#include "includes.h"
+RCSID("$OpenBSD: log.c,v 1.1 1999/11/10 23:36:44 markus Exp $");
+
+#include "ssh.h"
+#include "xmalloc.h"
+
+/* 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
+chat(const char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ do_log(SYSLOG_LEVEL_CHAT, 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_DEBUG, 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\n",
+ (unsigned long)proc, (unsigned 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)",
+ (unsigned long)cu->proc, (unsigned long)cu->context);
+ (*cu->proc)(cu->context);
+ }
+
+ exit(255);
+}