File bsc1129403-prevent-division-by-zero.patch of Package zziplib.35221

Index: zziplib-0.13.67/bins/unzip-mem.c
===================================================================
--- zziplib-0.13.67.orig/bins/unzip-mem.c
+++ zziplib-0.13.67/bins/unzip-mem.c
@@ -191,6 +191,7 @@ static void zzip_mem_entry_direntry_star
 static void zzip_mem_entry_direntry_done (void)
 {
     char exp = ' ';
+    long percentage;
     if (sum_usize / 1024 > 1024*1024*1024) { exp = 'G';
 	sum_usize /= 1024*1024*1024; sum_usize /= 1024*1024*1024; }
     if (sum_usize > 1024*1024*1024) { exp = 'M';
@@ -204,9 +205,10 @@ static void zzip_mem_entry_direntry_done
     return;
  verbose:
     printf("--------  ------  ------- -----                           ----\n");
+    percentage = sum_usize ? (L (100 - (sum_csize*100/sum_usize))) : 0; /* 0% if file size is 0 */
     printf("%8li%c       %8li%c %3li%%                     %8li %s\n",
 	   L sum_usize, exp, L sum_csize, exp, 
-	   L (100 - (sum_csize*100/sum_usize)), L sum_files, 
+	   percentage, L sum_files,
 	   sum_files == 1 ? "file" : "files");
 }
 
@@ -236,9 +238,12 @@ static void zzip_mem_entry_direntry(ZZIP
     if (*name == '\n') name++;
 
     if (option_verbose) {
+	long percentage;
+
+	percentage = usize ? (L (100 - (csize*100/usize))) : 0; /* 0% if file size is 0 */
 	printf("%8li%c %s %8li%c%3li%%  %s  %8lx  %s %s\n", 
 	       L usize, exp, comprlevel[compr], L csize, exp, 
-	       L (100 - (csize*100/usize)),
+	       percentage,
 	       _zzip_ctime(&mtime), crc32, name, comment);
     } else {
 	printf(" %8li%c %s   %s %s\n",