fixed error code checking for *write operations and return value in AOF rewriting function

src/aof.c

@@ -500,9 +500,9 @@ int rewriteAppendOnlyFile(char *filename) {
                     while((p = zipmapNext(p,&field,&flen,&val,&vlen)) != NULL) {
                         if (fwrite(cmd,sizeof(cmd)-1,1,fp) == 0) goto werr;
                         if (fwriteBulkObject(fp,&key) == 0) goto werr;
-                        if (fwriteBulkString(fp,(char*)field,flen) == -1)
+                        if (fwriteBulkString(fp,(char*)field,flen) == 0)
                             return -1;
-                        if (fwriteBulkString(fp,(char*)val,vlen) == -1)
+                        if (fwriteBulkString(fp,(char*)val,vlen) == 0)
                             return -1;
                     }
                 } else {
@@ -515,8 +515,8 @@ int rewriteAppendOnlyFile(char *filename) {
 
                         if (fwrite(cmd,sizeof(cmd)-1,1,fp) == 0) goto werr;
                         if (fwriteBulkObject(fp,&key) == 0) goto werr;
-                        if (fwriteBulkObject(fp,field) == -1) return -1;
-                        if (fwriteBulkObject(fp,val) == -1) return -1;
+                        if (fwriteBulkObject(fp,field) == -1) return REDIS_ERR;
+                        if (fwriteBulkObject(fp,val) == -1) return REDIS_ERR;
                     }
                     dictReleaseIterator(di);
                 }