From mboxrd@z Thu Jan  1 00:00:00 1970
From: lhh@sourceware.org <lhh@sourceware.org>
Date: 17 Dec 2007 20:04:13 -0000
Subject: [Cluster-devel] cluster/fence/agents/manual Makefile ack.c
Message-ID: <20071217200413.17220.qmail@sourceware.org>
List-Id: <cluster-devel.redhat.com>
To: cluster-devel.redhat.com
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CVSROOT:	/cvs/cluster
Module name:	cluster
Branch: 	RHEL5
Changes by:	lhh at sourceware.org	2007-12-17 20:04:12

Modified files:
	fence/agents/manual: Makefile ack.c 

Log message:
	Fix #418541

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/fence/agents/manual/Makefile.diff?cvsroot=cluster&only_with_tag=RHEL5&r1=1.7&r2=1.7.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/fence/agents/manual/ack.c.diff?cvsroot=cluster&only_with_tag=RHEL5&r1=1.3&r2=1.3.16.1

--- cluster/fence/agents/manual/Makefile	2006/08/11 15:18:08	1.7
+++ cluster/fence/agents/manual/Makefile	2007/12/17 20:04:04	1.7.2.1
@@ -16,7 +16,8 @@
 top_srcdir=../..
 
 
-INCLUDE= -I${top_srcdir}/include -I${top_srcdir}/config -I${incdir} -I../../../cman/lib -I../../../group/lib
+INCLUDE= -I${top_srcdir}/include -I${top_srcdir}/config -I${incdir} -I../../../cman/lib -I../../../group/lib \
+	 -I../../../ccs/lib -I../../fenced
 
 
 include ${top_srcdir}/make/defines.mk
@@ -31,10 +32,10 @@
 	$(CC) $(LDFLAGS) -o $@ $^ -lcman
 
 manual.o: manual.c
-	$(CC) $(CFLAGS) -c -o $@ $<
+	$(CC) $(CFLAGS) -c -o $@ $< 
 
 fence_ack_manual: ack.o
-	${CC} -o $@ $^
+	${CC} -o $@ $^ ../../../ccs/lib/libccs.a
 
 ack.o: ack.c
 	$(CC) $(CFLAGS) -c -o $@ $<
--- cluster/fence/agents/manual/Attic/ack.c	2004/11/24 03:46:32	1.3
+++ cluster/fence/agents/manual/Attic/ack.c	2007/12/17 20:04:04	1.3.16.1
@@ -11,6 +11,9 @@
 *******************************************************************************
 ******************************************************************************/
 
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -19,8 +22,9 @@
 #include <errno.h>
 #include <ctype.h>
 #include <sys/ioctl.h>
-#include <sys/types.h>
 #include <sys/wait.h>
+#include <ccs.h>
+#include <fd.h>
 
 #include "copyright.cf"
 
@@ -30,6 +34,7 @@
 char fname[256];
 int quiet_flag = 0;
 int override_flag = 0;
+int emergency_flag = 0;
 
 
 void print_usage(void)
@@ -43,9 +48,78 @@
 	 "  -O               override\n"
 	 "  -n <nodename>    Name of node that was manually fenced\n"
 	 "  -s <ip>          IP address of machine that was manually fenced (deprecated)\n"
+	 "  -e               Emergency Override (use if fencing has failed)\n"
          "  -V               Version information\n", pname);
 }
 
+int do_emergency_override(char *ipaddr)
+{
+  int fd;
+  int cd, tries = 0, error = 0;
+  char buf[PATH_MAX], path[PATH_MAX], *str = NULL;
+  struct stat st_buf;
+
+  cd = ccs_force_connect(NULL, 1);
+  if (cd >= 0) {
+    memset(buf, 0, sizeof(buf));
+    snprintf(buf, sizeof(buf)-1, "/cluster/fence_daemon/@override_path");
+    error = ccs_get(cd, buf, &str);
+    ccs_disconnect(cd);
+  }
+
+  if (error != 0)
+    str = DEFAULT_OVERRIDE_PATH;
+
+  memset(path, 0, sizeof(path));
+  snprintf(path, sizeof(path)-1, "%s", str);
+
+  if (error == 0)
+    free(str);
+
+  while (1) {
+    if (tries) {
+      if (tries == 1)
+        printf("Waiting for %s to become available...\n", path);
+      sleep(1);
+    }
+    ++tries;
+
+    fd = open(path, O_WRONLY);
+    if (fd < 0) {
+      switch(errno) {
+      case ENOENT:
+	continue;
+      default:
+        perror("open");
+        return 1;
+      }
+    }
+
+    error = fstat(fd, &st_buf);
+    if (error < 0) {
+      close(fd);
+      switch(errno) {
+      case ENOENT:
+	continue;
+      default:
+        perror("fstat");
+        return 1;
+      }
+    }
+
+    if (!S_ISFIFO(st_buf.st_mode)) {
+      printf("WARNING: %s is not a named pipe\n", str);
+    }
+
+    snprintf(buf, sizeof(buf)-1, "%s\n", ipaddr);
+    write(fd, buf, strlen(buf));
+    close(fd);
+    break;
+  }
+
+  return 0;
+}
+
 int main(int argc, char **argv)
 {
   int error, fd;
@@ -58,7 +132,7 @@
 
   pname = argv[0];
     
-  while ((c = getopt(argc, argv, "hOs:n:qV")) != -1)
+  while ((c = getopt(argc, argv, "ehOs:n:qV")) != -1)
   {
     switch(c)
     {
@@ -70,6 +144,10 @@
       override_flag = 1;
       break;
 
+    case 'e':
+      emergency_flag = 1;
+      break;
+
     case 's':
       ipaddr = optarg;
       break;
@@ -128,6 +206,10 @@
     }
   }
 
+  if (emergency_flag) {
+    return do_emergency_override(ipaddr);
+  }
+
   memset(fname, 0, 256);
   sprintf(fname, "%s/fence_manual.fifo", FIFO_DIR);