File bug-694243_cluster-glue_symbol-conflict.patch of Package cluster-glue.28029

# HG changeset patch
# Parent ef8ad188f372c6393847a1287af02f79e11717ec
Medium: stonith: load libplumb symbols manually (thanks to lge) (bnc#694243)

diff -r ef8ad188f372 -r 43e0d1d58866 lib/stonith/Makefile.am
--- a/lib/stonith/Makefile.am	Thu Dec 13 17:38:22 2012 +0100
+++ b/lib/stonith/Makefile.am	Thu Dec 13 17:43:11 2012 +0100
@@ -33,9 +33,7 @@ endif
 
 stonith_SOURCES		= main.c
 
-stonith_LDADD		= libstonith.la $(top_builddir)/lib/pils/libpils.la $(GLIBLIB) \
-			$(top_builddir)/lib/clplumbing/libplumb.la	\
-			$(top_builddir)/lib/clplumbing/libplumbgpl.la
+stonith_LDADD		= libstonith.la $(top_builddir)/lib/pils/libpils.la $(GLIBLIB)
 stonith_LDFLAGS		=  @LIBADD_DL@ @LIBLTDL@ -export-dynamic @DLOPEN_FORCE_FLAGS@ @LIBADD_INTL@ 
 
 meatclient_SOURCES	= meatclient.c 
diff -r ef8ad188f372 -r 43e0d1d58866 lib/stonith/main.c
--- a/lib/stonith/main.c	Thu Dec 13 17:38:22 2012 +0100
+++ b/lib/stonith/main.c	Thu Dec 13 17:43:11 2012 +0100
@@ -26,9 +26,9 @@
 #include <unistd.h>
 #include <string.h>
 #include <syslog.h>
+#include <dlfcn.h>
 #include <stonith/stonith.h>
 #include <pils/plugin.h>
-#include <clplumbing/cl_log.h>
 #include <glib.h>
 #include <libxml/entities.h>
 
@@ -43,6 +43,7 @@ static int	debug = 0;
 #define LOG_TERMINAL 0
 #define LOG_CLLOG 1
 static int	log_destination = LOG_TERMINAL;
+static void (*logfun)(int, const char *, ...) G_GNUC_PRINTF(2,3);
 
 static const char META_TEMPLATE[] =
 "<?xml version=\"1.0\"?>\n"
@@ -73,9 +74,11 @@ void print_stonith_meta(Stonith * stonit
 void print_types(void);
 void print_confignames(Stonith *s);
 
+const char *prio2str(int priority);
 void log_buf(int severity, char *buf);
 void log_msg(int severity, const char * fmt, ...)G_GNUC_PRINTF(2,3);
 void trans_log(int priority, const char * fmt, ...)G_GNUC_PRINTF(2,3);
+void setup_cl_log(void);
 
 static int pil_loglevel_to_syslog_severity[] = {
 	/* Indices: <none>=0, PIL_FATAL=1, PIL_CRIT=2, PIL_WARN=3,
@@ -297,6 +300,7 @@ print_stonith_meta(Stonith * stonith_obj
 }
 
 #define	MAXNVARG	50
+#define	MAXLINE		(512*10)
 
 void
 print_types()
@@ -331,6 +335,27 @@ print_confignames(Stonith *s)
 	printf("\n");
 }
 
+const char *
+prio2str(int priority)
+{
+	static const char *log_prio[8] = {
+		"EMERG",
+		"ALERT",
+		"CRIT",
+		"ERROR",
+		"WARN",
+		"notice",
+		"info",
+		"debug"
+	};
+	int		logpri;
+
+	logpri =  LOG_PRI(priority);
+
+	return (logpri < 0 || logpri >= DIMOF(log_prio)) ?
+		"(undef)" : log_prio[logpri];
+}
+
 void
 log_buf(int severity, char *buf)
 {
@@ -339,7 +364,11 @@ log_buf(int severity, char *buf)
 	if (log_destination == LOG_TERMINAL) {
 		fprintf(stderr, "%s: %s\n", prio2str(severity),buf);
 	} else {
-		cl_log(severity, "%s", buf);
+		if (logfun) {
+			(*logfun)(severity, "%s", buf);
+		} else {
+			syslog(severity, "%s", buf);
+		}
 	}
 }
 
@@ -370,6 +399,40 @@ trans_log(int priority, const char * fmt
 	log_buf(severity, buf);
 }
 
+/*
+ * due to possible symbol conflict with other system libraries
+ * (in particular HMAC, MD5, and base64*) we just pick the
+ * symbols we need here
+ */
+
+void
+setup_cl_log(void)
+{
+	void *ldhandle;
+	void (*set_entity)(const char *);
+	void (*enable_stderr)(int);
+	void (*set_facility)(int);
+	void (*inherit_logging_environment)(int);
+
+	ldhandle = dlopen("libplumb.so", RTLD_LAZY);
+	if (!ldhandle) {
+		return;
+	}
+
+	*(void **) (&set_entity) = dlsym(ldhandle, "cl_log_set_entity");
+	*(void **) (&enable_stderr) = dlsym(ldhandle, "cl_log_enable_stderr");
+	*(void **) (&set_facility) = dlsym(ldhandle, "cl_log_set_facility");
+	*(void **) (&inherit_logging_environment) = dlsym(ldhandle, "cl_inherit_logging_environment");
+	*(void **) (&logfun) = dlsym(ldhandle, "cl_log");
+
+	(*set_entity)("stonith");
+	(*enable_stderr)(debug?TRUE:FALSE);
+	(*set_facility)(HA_LOG_FACILITY);
+
+	/* Use logd if it's enabled by heartbeat */
+	(*inherit_logging_environment)(0);
+}
+
 int
 main(int argc, char** argv)
 {
@@ -491,12 +554,7 @@ main(int argc, char** argv)
 	/* if we're invoked by stonithd, log through cl_log */
 	if (!isatty(fileno(stdin))) {
 		log_destination = LOG_CLLOG;
-		cl_log_set_entity("stonith");
-		cl_log_enable_stderr(debug?TRUE:FALSE);
-		cl_log_set_facility(HA_LOG_FACILITY);
-
-		/* Use logd if it's enabled by heartbeat */
-		cl_inherit_logging_environment(0);
+		setup_cl_log();
 	}
 
 	if (help && !errors) {