---

 libmultipath/print.c |   31 +++++++++++++++++++++++++++----

 1 file changed, 27 insertions(+), 4 deletions(-)

Index: multipath-tools-130222/libmultipath/print.c

===================================================================

--- multipath-tools-130222.orig/libmultipath/print.c

+++ multipath-tools-130222/libmultipath/print.c

@@ -8,6 +8,8 @@

 #include <sys/stat.h>

 #include <dirent.h>

 #include <unistd.h>

+#include <string.h>

+#include <errno.h>

 #include "checkers.h"

 #include "vector.h"

@@ -24,6 +26,7 @@

 #include "switchgroup.h"

 #include "devmapper.h"

 #include "uevent.h"

+#include "debug.h"

 #define MAX(x,y) (x > y) ? x : y

 #define TAIL     (line + len - 1 - c)

@@ -754,12 +757,32 @@ snprint_pathgroup (char * line, int len,

 extern void

 print_multipath_topology (struct multipath * mpp, int verbosity)

 {

-	char buff[MAX_LINE_LEN * MAX_LINES] = {};

+	int resize;

+	char *buff = NULL;

+	char *old = NULL;

+	int len, maxlen = MAX_LINE_LEN * MAX_LINES;

-	memset(&buff[0], 0, MAX_LINE_LEN * MAX_LINES);

-	snprint_multipath_topology(&buff[0], MAX_LINE_LEN * MAX_LINES,

-				   mpp, verbosity);

+	buff = MALLOC(maxlen);

+	do {

+		if (!buff) {

+			if (old)

+				FREE(old);

+			condlog(0, "couldn't allocate memory for list: %s\n",

+				strerror(errno));

+			return;

+		}

+

+		len = snprint_multipath_topology(buff, maxlen, mpp, verbosity);

+		resize = (len == maxlen - 1);

+

+		if (resize) {

+			maxlen *= 2;

+			old = buff;

+			buff = REALLOC(buff, maxlen);

+		}

+	} while (resize);

 	printf("%s", buff);

+	FREE(buff);

 }

 extern int