From ae31e19f92e717919ac8e3db9039eb38d2b89aae Mon Sep 17 00:00:00 2001
From: in2 <in2@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>
Date: Thu, 7 Mar 2002 15:13:44 +0000
Subject: Initial revision

git-svn-id: http://opensvn.csie.org/pttbbs/pttbbs/trunk/pttbbs@1 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
---
 util/shmsweep.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 util/shmsweep.c

(limited to 'util/shmsweep.c')

diff --git a/util/shmsweep.c b/util/shmsweep.c
new file mode 100644
index 00000000..01acb26b
--- /dev/null
+++ b/util/shmsweep.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <sys/stat.h>
+#include "config.h"
+#include "pttstruct.h"
+
+int main() {
+    int i, shm, counter;
+    struct utmpfile_t *utmpshm;
+
+    
+    shm = shmget(UTMPSHM_KEY, USHM_SIZE, SHM_R | SHM_W);
+    if(shm == -1) {
+	perror("shmget");
+	exit(0);
+    }
+    
+    utmpshm = shmat(shm, NULL, 0);
+    if(utmpshm == (struct utmpfile_t *)-1) {
+	perror("shmat");
+	exit(0);
+    }
+    
+    for(i = counter = 0; i < USHM_SIZE; i++)
+	if(utmpshm->uinfo[i].pid) {
+	    char buf[256];
+	    userinfo_t *f;
+	    struct stat sb;
+		
+	    f = &utmpshm->uinfo[i];
+	    sprintf(buf, "/proc/%d", f->pid);
+	    if(stat(buf, &sb)) {
+		f->pid = 0;
+		utmpshm->number--;
+		counter++;
+	    }
+	}
+    printf("clear %d slots\n", counter);
+    return 0;
+}
-- 
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