when linking files, remove the dest file first only if the source file exists

git-svn-id: file:///home/lennart/svn/public/syrep/trunk@99 07ea20a6-d2c5-0310-9e02-9ef735347d72

1 files changed, 7 insertions, 2 deletions

diff --git a/src/util.c b/src/util.c
index 1f5c412..964e36f 100644
--- a/src/util.c
+++ b/src/util.c
@@ -489,11 +489,16 @@ finish:
 
 int copy_or_link_file(const char *src, const char *dst, int c) {
 
-    if (c)
-        unlink(dst);
     
     if (link(src, dst) < 0) {
 
+        if (errno == EEXIST && c) {
+            unlink(dst);
+            
+            if (link(src, dst) == 0)
+                return 0;
+        }
+        
         if (errno == EXDEV || errno == EPERM)
             return copy_file(src, dst, c);