From e4c69f10c8729812176ef49171e79e9dd8cd983f Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Mon, 10 Feb 2014 13:14:37 +0100
Subject: Fix reading from stdin. fread sucks.

---
 src/pwgui/main.cpp | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/pwgui/main.cpp b/src/pwgui/main.cpp
index 6e12eee..fa131b1 100644
--- a/src/pwgui/main.cpp
+++ b/src/pwgui/main.cpp
@@ -98,17 +98,25 @@ int main(int argc, char *argv[])
       return CUPS_BACKEND_FAILED;
     }
     char buffer[BUFLEN];
-    size_t bytes, ret;
-    while (!feof(stdin)) {
-      bytes = fread(buffer, BUFLEN, 1, stdin);
+    int bytes, ret;
+    int total = 0;
+    for (;;) {
+      bytes = read(STDIN_FILENO, buffer, BUFLEN);
       if (bytes == 0) break;
+      if (bytes < 0) {
+        fprintf(stderr, "ERROR: Could not read print job from STDIN.\n");
+        remove(tmpfile);
+        return CUPS_BACKEND_FAILED;
+		}
       if ((ret = write(fh, buffer, bytes)) != bytes) {
         fprintf(stderr, "ERROR: Could not write %d bytes to %s (wrote %d)\n", (int)bytes, tmpfile, (int)ret);
         remove(tmpfile);
         return CUPS_BACKEND_FAILED;
       }
+      total += bytes;
     }
     close(fh);
+	 fprintf(stderr, "ERROR: Read %d bytes from stdin.\n", total);
     //
   } else {
     // File given, check if file exists
@@ -168,7 +176,7 @@ int main(int argc, char *argv[])
     status = run_backend(backend, device, argv[1], creds, argv[3], argv[4], argv[5], tmpfile, pass);
   } while (status != CUPS_BACKEND_OK);
   remove(tmpfile);
-  fprintf(stderr, "Job submitted.\n");
+  fprintf(stderr, "ERROR: Job submitted.\n");
   return CUPS_BACKEND_OK;
 }
 
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