kvm's killdeadbbs

git-svn-id: http://opensvn.csie.org/pttbbs/pttbbs/trunk/pttbbs@102 63ad8ddf-47c3-0310-b6dd-a9e9d9715204

1 files changed, 56 insertions, 0 deletions

diff --git a/util/killdeadbbs.c b/util/killdeadbbs.c
new file mode 100644
index 00000000..0c83fe29
--- /dev/null
+++ b/util/killdeadbbs.c
@@ -0,0 +1,56 @@
+#ifndef FreeBSD
+int main(int argc, char **argv)
+{
+    puts("this program is only for FreeBSD");
+}
+#else
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <kvm.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/user.h>
+#include "config.h"        // for BBSUID
+
+int main(int argc, char **argv)
+{
+    kvm_t   *kd;
+    struct  kinfo_proc *kp;
+    char    errbuf[_POSIX2_LINE_MAX];
+    int     nentries, i, npids;
+    pid_t   pids[8192];
+    kd = kvm_openfiles("/dev/null", "/dev/null", NULL, O_RDONLY, errbuf);
+    if( kd == NULL )
+	errx(1, "%s", errbuf);
+    
+    if ((kp = kvm_getprocs(kd, KERN_PROC_UID, BBSUID, &nentries)) == 0 ||
+	nentries < 0)
+	errx(1, "%s", kvm_geterr(kd));
+
+    for( npids = 0, i = nentries ; --i >= 0 ; ++kp ){
+	if( strncmp(kp->ki_comm, "mbbsd", 5) == 0 ){
+	    if( kp->ki_runtime > (60 * 1000000) ){ // 60 secs
+		kill(kp->ki_pid, 1);
+		pids[npids++] = kp->ki_pid;
+		printf("%d\n", kp->ki_pid);
+	    }
+	}
+    }
+    
+    if( npids != 0 ){
+	sleep(2);
+	while( --npids >= 0 )
+	    kill(pids[npids], 9);
+    }
+
+    kvm_close(kd);
+    return 0;
+}
+
+#endif