evas: Fix some CID in generic loaders

Check the return value of fwrite. There is nothing
sensible to do as the receiver needs to handle the error
gracefully.

CID 1356613, 1356614, 1356615, 1356200

4 files changed, 24 insertions, 4 deletions

diff --git a/src/generic/evas/pdf/main.cpp b/src/generic/evas/pdf/main.cpp
index 8623179b71..eab137b8ee 100644
--- a/src/generic/evas/pdf/main.cpp
+++ b/src/generic/evas/pdf/main.cpp
@@ -321,7 +321,12 @@ main(int argc, char **argv)
              // could also to "tmpfile %s\n" like shmfile but just
              // a mmaped tmp file on the system
              printf("data\n");
-             fwrite(data, crop_width * crop_height * sizeof(DATA32), 1, stdout);
+             if (fwrite(data, crop_width * crop_height * sizeof(DATA32), 1, stdout) != 1)
+               {
+                  // nothing much to do, the receiver will simply ignore the
+                  // data as it's too short
+                  D("fwrite failed (%d bytes): %m\n", crop_width * crop_height * sizeof(DATA32));
+               }
           }
         shm_free();
      }
diff --git a/src/generic/evas/ps/main.c b/src/generic/evas/ps/main.c
index 48e8a4b6f6..c5b8a18ff6 100644
--- a/src/generic/evas/ps/main.c
+++ b/src/generic/evas/ps/main.c
@@ -276,7 +276,12 @@ main(int argc, char **argv)
              // could also to "tmpfile %s\n" like shmfile but just
              // a mmaped tmp file on the system
              printf("data\n");
-             fwrite(data, width * height * sizeof(DATA32), 1, stdout);
+             if (fwrite(data, width * height * sizeof(DATA32), 1, stdout) != 1)
+               {
+                  // nothing much to do, the receiver will simply ignore the
+                  // data as it's too short
+                  D("fwrite failed (%d bytes): %m\n", width * height * sizeof(DATA32));
+               }
           }
         shm_free();
      }
diff --git a/src/generic/evas/svg/main.c b/src/generic/evas/svg/main.c
index 8c46708d92..f1973303ee 100644
--- a/src/generic/evas/svg/main.c
+++ b/src/generic/evas/svg/main.c
@@ -218,7 +218,12 @@ int main(int argc, char **argv)
              else
                {
                   printf("data\n");
-                  fwrite(shm_addr, width * height * sizeof(DATA32), 1, stdout);
+                  if (fwrite(shm_addr, width * height * sizeof(DATA32), 1, stdout) != 1)
+                    {
+                       // nothing much to do, the receiver will simply ignore the
+                       // data as it's too short
+                       //D("fwrite failed (%d bytes): %m\n", width * height * sizeof(DATA32));
+                    }
                }
              shm_free();
           }
diff --git a/src/generic/evas/xcf/main.c b/src/generic/evas/xcf/main.c
index 4de03f8be8..c5ef6a82d6 100644
--- a/src/generic/evas/xcf/main.c
+++ b/src/generic/evas/xcf/main.c
@@ -1723,7 +1723,12 @@ main(int argc, char **argv)
              // could also to "tmpfile %s\n" like shmfile but just
              // a mmaped tmp file on the system
              printf("data\n");
-             fwrite(image->data, w * h * sizeof(DATA32), 1, stdout);
+             if (fwrite(image->data, w * h * sizeof(DATA32), 1, stdout) != 1)
+             {
+                // nothing much to do, the receiver will simply ignore the
+                // data as it's too short
+                D("fwrite failed (%d bytes): %m\n", w * h * sizeof(DATA32));
+             }
           }
         shm_free();
      }