diff options
Diffstat (limited to 'src/plugins/sig.c')
| -rw-r--r-- | src/plugins/sig.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/plugins/sig.c b/src/plugins/sig.c new file mode 100644 index 000000000..1e9c36891 --- /dev/null +++ b/src/plugins/sig.c @@ -0,0 +1,211 @@ +// $Id: sig.c 1 2005-6-13 3:17:17 PM Celestia $
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <time.h>
+#include "../common/plugin.h"
+#include "../common/version.h"
+#include "../common/showmsg.h"
+
+PLUGIN_INFO = {
+ "Signals",
+ PLUGIN_CORE,
+ "1.1",
+ PLUGIN_VERSION,
+ "Handles program signals"
+};
+
+PLUGIN_EVENTS_TABLE = {
+ { "sig_init", "Plugin_Init" },
+ { "sig_final", "Plugin_Final" },
+ { NULL, NULL }
+};
+
+//////////////////////////////////////
+
+#if defined(_WIN32) || defined(MINGW)
+ int sig_init() {
+ printf("This plugin is not supported - Enable 'exchndl' instead!");
+ return 0;
+ }
+ int sig_final() { return 0; }
+#elif defined (__NETBSD__) || defined (__FREEBSD__)
+ int sig_init() {
+ printf("This plugin is not supported!");
+ return 0;
+ }
+ int sig_final() { return 0; }
+#else
+
+//////////////////////////////////////
+
+#if !defined(CYGWIN)
+ #include <execinfo.h>
+#endif
+
+const char* (*getrevision)();
+unsigned long (*getuptime)();
+char *server_name;
+int crash_flag = 0;
+
+extern const char *strsignal(int);
+int sig_final ();
+
+// by Gabuzomeu
+// This is an implementation of signal() using sigaction() for portability.
+// (sigaction() is POSIX; signal() is not.) Taken from Stevens' _Advanced
+// Programming in the UNIX Environment_.
+//
+#ifdef WIN32 // windows don't have SIGPIPE
+#define SIGPIPE SIGINT
+#endif
+
+#ifndef POSIX
+#define compat_signal(signo, func) signal(signo, func)
+#else
+sigfunc *compat_signal(int signo, sigfunc *func)
+{
+ struct sigaction sact, oact;
+
+ sact.sa_handler = func;
+ sigemptyset(&sact.sa_mask);
+ sact.sa_flags = 0;
+#ifdef SA_INTERRUPT
+ sact.sa_flags |= SA_INTERRUPT; /* SunOS */
+#endif
+
+ if (sigaction(signo, &sact, &oact) < 0)
+ return (SIG_ERR);
+
+ return (oact.sa_handler);
+}
+#endif
+
+/*=========================================
+ * Dumps the stack using glibc's backtrace
+ *-----------------------------------------
+ */
+#ifdef CYGWIN
+ #define FOPEN_ freopen
+ extern void cygwin_stackdump();
+#else
+ #define FOPEN_(fn,m,s) fopen(fn,m)
+#endif
+void sig_dump(int sn)
+{
+ FILE *fp;
+ char file[256];
+ int no = 0;
+
+ crash_flag = 1;
+ // search for a usable filename
+ do {
+ sprintf (file, "log/%s%04d.stackdump", server_name, ++no);
+ } while((fp = fopen(file,"r")) && (fclose(fp), no < 9999));
+ // dump the trace into the file
+
+ if ((fp = FOPEN_(file, "w", stderr)) != NULL) {
+ const char *revision;
+ #ifndef CYGWIN
+ void* array[20];
+ char **stack;
+ size_t size;
+ #endif
+
+ printf ("Dumping stack to '"CL_WHITE"%s"CL_RESET"'... ", file);
+ if ((revision = getrevision()) != NULL)
+ fprintf(fp, "Version: svn%s \n", revision);
+ else
+ fprintf(fp, "Version: %2d.%02d.%02d mod%02d \n", ATHENA_MAJOR_VERSION, ATHENA_MINOR_VERSION, ATHENA_REVISION, ATHENA_MOD_VERSION);
+ fprintf(fp, "Exception: %s \n", strsignal(sn));
+ fflush (fp);
+
+ #ifdef CYGWIN
+ cygwin_stackdump ();
+ #else
+ fprintf(fp, "Stack trace:\n");
+ size = backtrace (array, 20);
+ stack = backtrace_symbols (array, size);
+ for (no = 0; no < size; no++) {
+ fprintf(fp, "%s\n", stack[no]);
+ }
+ fprintf(fp,"End of stack trace\n");
+ free(stack);
+ #endif
+
+ printf ("Done.\n");
+ fflush(stdout);
+ fclose(fp);
+ }
+
+ sig_final(); // Log our uptime
+ // Pass the signal to the system's default handler
+ compat_signal(sn, SIG_DFL);
+ raise(sn);
+}
+
+/*=========================================
+ * Shutting down (Program did not crash ^^)
+ * - Log our current up time
+ *-----------------------------------------
+ */
+int sig_final ()
+{
+ time_t curtime;
+ char curtime2[24];
+ FILE *fp;
+ long seconds = 0, day = 24*60*60, hour = 60*60,
+ minute = 60, days = 0, hours = 0, minutes = 0;
+
+ fp = fopen("log/uptime.log","a");
+ if (fp) {
+ time(&curtime);
+ strftime(curtime2, 24, "%m/%d/%Y %H:%M:%S", localtime(&curtime));
+
+ seconds = getuptime();
+ days = seconds/day;
+ seconds -= (seconds/day>0)?(seconds/day)*day:0;
+ hours = seconds/hour;
+ seconds -= (seconds/hour>0)?(seconds/hour)*hour:0;
+ minutes = seconds/minute;
+ seconds -= (seconds/minute>0)?(seconds/minute)*minute:0;
+
+ fprintf(fp, "%s: %s %s - %ld days, %ld hours, %ld minutes, %ld seconds.\n",
+ curtime2, server_name, (crash_flag ? "crashed" : "uptime"),
+ days, hours, minutes, seconds);
+ fclose(fp);
+ }
+
+ return 1;
+}
+
+/*=========================================
+ * Register the signal handlers
+ *-----------------------------------------
+ */
+int sig_init ()
+{
+ void (*func) = sig_dump;
+#ifdef CYGWIN // test if dumper is enabled
+ char *buf = getenv ("CYGWIN");
+ if (buf && strstr(buf, "error_start") != NULL)
+ func = SIG_DFL;
+#endif
+
+ IMPORT_SYMBOL(server_name, 1);
+ IMPORT_SYMBOL(getrevision, 6);
+ IMPORT_SYMBOL(getuptime, 11);
+
+ compat_signal(SIGSEGV, func);
+ compat_signal(SIGFPE, func);
+ compat_signal(SIGILL, func);
+ #ifndef __WIN32
+ compat_signal(SIGBUS, func);
+ #endif
+
+ return 1;
+}
+#endif
+
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