net-print/cups-filters/files/cups-filters-1.28.5-remove-bbox-gs-device.patch

From: Pranav Batra <batrapranav@chromium.org>
Subject: [PATCH] Remove bbox Ghostscript device

The bbox device is used to count the number of pages in a postscript
file very inefficiently to make sure at least one page exists before
attempting to render the file. Currently we do not build ghostscript
with support for the bbox device hence the need for this patch.

--- a/filter/foomatic-rip/postscript.c
+++ b/filter/foomatic-rip/postscript.c
@@ -168,42 +168,10 @@ int stream_next_line(dstr_t *line, stream_t *s)
     return cnt;
 }
 
-int ps_pages(const char *filename)
-{
-    char gscommand[65536];
-    char output[31] = "";
-    int pagecount;
-    size_t bytes;
-    snprintf(gscommand, 65536, "%s -q -dNOPAUSE -dBATCH -sDEVICE=bbox %s 2>&1 | grep -c HiResBoundingBox",
-              CUPS_GHOSTSCRIPT, filename);
-    FILE *pd = popen(gscommand, "r");
-    bytes = fread(output, 1, 31, pd);
-    pclose(pd);
-
-    if (bytes <= 0 || sscanf(output, "%d", &pagecount) < 1)
-        pagecount = -1;
-
-    return pagecount;
-}
-
 int print_ps(FILE *file, const char *alreadyread, size_t len, const char *filename)
 {
     stream_t stream;
 
-    if (file != stdin)
-    {
-        int pagecount = ps_pages(filename);
-        if (pagecount < 0) {
-            _log("Unexpected page count\n");
-            return 0;
-        }
-        if (pagecount == 0) {
-            _log("No pages left, outputting empty file.\n");
-            return 1;
-        }
-        _log("File contains %d pages.\n", pagecount);
-    }
-
     stream.pos = 0;
     stream.file = file;
     stream.alreadyread = alreadyread;
--- a/filter/gstoraster.c
+++ b/filter/gstoraster.c
@@ -728,38 +728,6 @@ main (int argc, char **argv, char *envp[])
       goto out;
     }
   }
-  else {
-    char gscommand[65536];
-    char output[31] = "";
-    int pagecount;
-    size_t bytes;
-    snprintf(gscommand, 65536, "%s -q -dNOPAUSE -dBATCH -sDEVICE=bbox %s 2>&1 | grep -c HiResBoundingBox",
-	     CUPS_GHOSTSCRIPT, filename);
-
-    FILE *pd = popen(gscommand, "r");
-    if (!pd) {
-      fprintf(stderr, "Failed to execute ghostscript to determine number of input pages!\n");
-      goto out;
-    }
-
-    bytes = fread(output, 1, 31, pd);
-    pclose(pd);
-
-    if (bytes <= 0 || sscanf(output, "%d", &pagecount) < 1)
-      pagecount = -1;
-
-    if (pagecount == 0) {
-      fprintf(stderr, "DEBUG: No pages left, outputting empty file.\n");
-      status = 0;
-      if (outformat == OUTPUT_FORMAT_RASTER)
-        fprintf(stdout, "RaS2");
-      goto out;
-    }
-    if (pagecount < 0) {
-      fprintf(stderr, "DEBUG: Unexpected page count\n");
-      goto out;
-    }
-  }
   if (argc == 6) {
     /* input from stdin */
     /* remove name of temp file*/