From: ellson <devnull@localhost>
Date: Fri, 1 Aug 2008 19:56:45 +0000 (+0000)
Subject: more fread() return values
X-Git-Tag: LAST_LIBGRAPH~32^2~3712
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=52fb640fd15bca0748f64b9a6212d0f9e65fbb33;p=graphviz

more fread() return values
---

diff --git a/lib/sparse/SparseMatrix.c b/lib/sparse/SparseMatrix.c
index d53f1362e..76d139081 100644
--- a/lib/sparse/SparseMatrix.c
+++ b/lib/sparse/SparseMatrix.c
@@ -626,13 +626,17 @@ SparseMatrix SparseMatrix_import_binary(char *name){
   A->property = property;
 
   if (format == FORMAT_COORD){
-    fread(A->ia, sizeof(int), A->nz, f);
+    rc = fread(A->ia, sizeof(int), A->nz, f);
+    if (rc != A->nz) return NULL;
   } else {
-    fread(A->ia, sizeof(int), A->m + 1, f);
+    rc = fread(A->ia, sizeof(int), A->m + 1, f);
+    if (rc != A->m + 1) return NULL;
   }
-  fread(A->ja, sizeof(int), A->nz, f);
+  rc = fread(A->ja, sizeof(int), A->nz, f);
+  if (rc != A->nz) return NULL;
   if (size_of_matrix_type(A->type) > 0) {
-    fread(A->a, size_of_matrix_type(A->type), A->nz, f);
+    rc = fread(A->a, size_of_matrix_type(A->type), A->nz, f);
+    if (rc != size_of_matrix_type(A->type)) return NULL;
   }
   fclose(f);
   return A;