[prev in list] [next in list] [prev in thread] [next in thread] 

List:       cups-bugs
Subject:    Re: [cups.bugs] [HIGH] STR #3812: Failure to read last page of
From:       Michael Sweet <msweet () apple ! com>
Date:       2011-03-11 23:54:06
Message-ID: 20110311235406.5386D3C68413 () dns ! easysw ! com
[Download RAW message or body]

DO NOT REPLY TO THIS MESSAGE.  INSTEAD, POST ANY RESPONSES TO THE LINK BELOW.

[STR Closed w/Resolution]

Fixed in Subversion repository.

Link: http://www.cups.org/str.php?L3812
Version: 1.4-current
Fix Version: 1.5-current (r9597)
["str3812.patch" (text/plain)]

Index: filter/testraster.c
===================================================================
--- filter/testraster.c	(revision 9595)
+++ filter/testraster.c	(working copy)
@@ -19,6 +19,7 @@
  *   main()            - Test the raster functions.
  *   do_ppd_tests()    - Test the default option commands in a PPD file.
  *   do_ps_tests()     - Test standard PostScript commands.
+ *   do_ras_file()     - Test reading of a raster file.
  *   do_raster_tests() - Test reading and writing of raster data.
  *   print_changes()   - Print differences in the page header.
  */
@@ -28,6 +29,12 @@
  */
 
 #include "image-private.h"
+#ifdef WIN32
+#  include <io.h>
+#else
+#  include <unistd.h>
+#  include <fcntl.h>
+#endif /* WIN32 */
 
 
 /*
@@ -193,6 +200,7 @@
 static int	do_ppd_tests(const char *filename, int num_options,
 		             cups_option_t *options);
 static int	do_ps_tests(void);
+static int	do_ras_file(const char *filename);
 static int	do_raster_tests(cups_mode_t mode);
 static void	print_changes(cups_page_header2_t *header,
 		              cups_page_header2_t *expected);
@@ -207,6 +215,7 @@
      char *argv[])			/* I - Command-line arguments */
 {
   int		errors;			/* Number of errors */
+  const char	*ext;			/* Filename extension */
 
 
   if (argc == 1)
@@ -239,6 +248,7 @@
             else
             {
               puts("Usage: testraster [-o name=value ...] [filename.ppd ...]");
+              puts("       testraster [filename.ras ...]");
               return (1);
             }
           }
@@ -246,11 +256,23 @@
         else
         {
           puts("Usage: testraster [-o name=value ...] [filename.ppd ...]");
+	  puts("       testraster [filename.ras ...]");
           return (1);
         }
       }
+      else if ((ext = strrchr(argv[i], '.')) != NULL)
+      {
+        if (!strcmp(ext, ".ppd"))
+	  errors += do_ppd_tests(argv[i], num_options, options);
+	else
+	  errors += do_ras_file(argv[i]);
+      }
       else
-        errors += do_ppd_tests(argv[i], num_options, options);
+      {
+	puts("Usage: testraster [-o name=value ...] [filename.ppd ...]");
+	puts("       testraster [filename.ras ...]");
+	return (1);
+      }
     }
 
     cupsFreeOptions(num_options, options);
@@ -352,7 +374,7 @@
   }
   else
     puts("PASS");
-    
+
   fputs("_cupsRasterExecPS(\"roll\"): ", stdout);
   fflush(stdout);
 
@@ -431,93 +453,67 @@
   else
     puts("PASS");
 
-#if 0
-  fputs("_cupsRasterExecPS(\"\"): ", stdout);
-  fflush(stdout);
+  return (errors);
+}
 
-  if (_cupsRasterExecPS(&header, &preferred_bits,
-                        ""))
-  {
-    puts("FAIL (error from function)");
-    errors ++;
-  }
-  else if (header.)
-  {
-    printf("FAIL ()\n");
-    errors ++;
-  }
-  else
-    puts("PASS");
 
-  fputs("_cupsRasterExecPS(\"\"): ", stdout);
-  fflush(stdout);
+/*
+ * 'do_ras_file()' - Test reading of a raster file.
+ */
 
-  if (_cupsRasterExecPS(&header, &preferred_bits,
-                        ""))
-  {
-    puts("FAIL (error from function)");
-    errors ++;
-  }
-  else if (header.)
-  {
-    printf("FAIL ()\n");
-    errors ++;
-  }
-  else
-    puts("PASS");
+static int				/* O - Number of errors */
+do_ras_file(const char *filename)	/* I - Filename */
+{
+  unsigned		y;		/* Looping vars */
+  int			fd;		/* File descriptor */
+  cups_raster_t		*ras;		/* Raster stream */
+  cups_page_header2_t	header;		/* Page header */
+  unsigned char		*data;		/* Raster data */
+  int			errors = 0;	/* Number of errors */
+  unsigned		pages = 0;	/* Number of pages */
 
-  fputs("_cupsRasterExecPS(\"\"): ", stdout);
-  fflush(stdout);
 
-  if (_cupsRasterExecPS(&header, &preferred_bits,
-                        ""))
+  if ((fd = open(filename, O_RDONLY)) < 0)
   {
-    puts("FAIL (error from function)");
-    errors ++;
+    printf("%s: %s\n", filename, strerror(errno));
+    return (1);
   }
-  else if (header.)
+
+  if ((ras = cupsRasterOpen(fd, CUPS_RASTER_READ)) == NULL)
   {
-    printf("FAIL ()\n");
-    errors ++;
+    printf("%s: cupsRasterOpen failed.\n", filename);
+    close(fd);
+    return (1);
   }
-  else
-    puts("PASS");
 
-  fputs("_cupsRasterExecPS(\"\"): ", stdout);
-  fflush(stdout);
+  printf("%s:\n", filename);
 
-  if (_cupsRasterExecPS(&header, &preferred_bits,
-                        ""))
+  while (cupsRasterReadHeader2(ras, &header))
   {
-    puts("FAIL (error from function)");
-    errors ++;
-  }
-  else if (header.)
-  {
-    printf("FAIL ()\n");
-    errors ++;
-  }
-  else
-    puts("PASS");
+    pages ++;
+    data = malloc(header.cupsBytesPerLine);
 
-  fputs("_cupsRasterExecPS(\"\"): ", stdout);
-  fflush(stdout);
+    printf("    Page %u: %ux%ux%u@%ux%udpi", pages,
+           header.cupsWidth, header.cupsHeight, header.cupsBitsPerPixel,
+           header.HWResolution[0], header.HWResolution[1]);
+    fflush(stdout);
 
-  if (_cupsRasterExecPS(&header, &preferred_bits,
-                        ""))
-  {
-    puts("FAIL (error from function)");
-    errors ++;
+    for (y = 0; y < header.cupsHeight; y ++)
+      if (cupsRasterReadPixels(ras, data, header.cupsBytesPerLine) <
+              header.cupsBytesPerLine)
+        break;
+
+    if (y < header.cupsHeight)
+      printf(" ERROR AT LINE %d\n", y);
+    else
+      putchar('\n');
+
+    free(data);
   }
-  else if (header.)
-  {
-    printf("FAIL ()\n");
-    errors ++;
-  }
-  else
-    puts("PASS");
-#endif /* 0 */
 
+  cupsRasterClose(ras);
+  close(fd);
+
   return (errors);
 }
 
Index: filter/raster.c
===================================================================
--- filter/raster.c	(revision 9595)
+++ filter/raster.c	(working copy)
@@ -84,6 +84,7 @@
  * Local functions...
  */
 
+static int	cups_raster_io(cups_raster_t *r, unsigned char *buf, int bytes);
 static unsigned	cups_raster_read_header(cups_raster_t *r);
 static int	cups_raster_read(cups_raster_t *r, unsigned char *buf,
 		                 int bytes);
@@ -189,7 +190,7 @@
     * Open for read - get sync word...
     */
 
-    if ((*r->iocb)(r->ctx, (unsigned char *)&(r->sync), sizeof(r->sync)) !=
+    if (cups_raster_io(r, (unsigned char *)&(r->sync), sizeof(r->sync)) !=
             sizeof(r->sync))
     {
       _cupsRasterAddError("Unable to read header from raster stream: %s\n",
@@ -246,7 +247,7 @@
 	  break;
     }
 
-    if ((*r->iocb)(r->ctx, (unsigned char *)&(r->sync), sizeof(r->sync))
+    if (cups_raster_io(r, (unsigned char *)&(r->sync), sizeof(r->sync))
             < sizeof(r->sync))
     {
       _cupsRasterAddError("Unable to write raster stream header: %s\n",
@@ -284,7 +285,7 @@
 
   if (!cups_raster_read_header(r))
     return (0);
-  
+
  /*
   * Copy the header to the user-supplied buffer...
   */
@@ -313,7 +314,7 @@
 
   if (!cups_raster_read_header(r))
     return (0);
-  
+
  /*
   * Copy the header to the user-supplied buffer...
   */
@@ -357,7 +358,7 @@
 
     r->remaining -= len / r->header.cupsBytesPerLine;
 
-    if ((*r->iocb)(r->ctx, p, len) < (ssize_t)len)
+    if (cups_raster_io(r, p, len) < (ssize_t)len)
       return (0);
 
    /*
@@ -538,7 +539,7 @@
  *
  * @deprecated@
  */
- 
+
 unsigned				/* O - 1 on success, 0 on failure */
 cupsRasterWriteHeader(
     cups_raster_t      *r,		/* I - Raster stream */
@@ -581,10 +582,10 @@
     fh.cupsColorOrder   = htonl(r->header.cupsColorOrder);
     fh.cupsColorSpace   = htonl(r->header.cupsColorSpace);
 
-    return ((*r->iocb)(r->ctx, (unsigned char *)&fh, sizeof(fh)) == sizeof(fh));
+    return (cups_raster_io(r, (unsigned char *)&fh, sizeof(fh)) == sizeof(fh));
   }
   else
-    return ((*r->iocb)(r->ctx, (unsigned char *)&(r->header), sizeof(r->header))
+    return (cups_raster_io(r, (unsigned char *)&(r->header), sizeof(r->header))
 		== sizeof(r->header));
 }
 
@@ -597,7 +598,7 @@
  *
  * @since CUPS 1.2/Mac OS X 10.5@
  */
- 
+
 unsigned				/* O - 1 on success, 0 on failure */
 cupsRasterWriteHeader2(
     cups_raster_t       *r,		/* I - Raster stream */
@@ -639,10 +640,10 @@
     fh.cupsColorOrder   = htonl(r->header.cupsColorOrder);
     fh.cupsColorSpace   = htonl(r->header.cupsColorSpace);
 
-    return ((*r->iocb)(r->ctx, (unsigned char *)&fh, sizeof(fh)) == sizeof(fh));
+    return (cups_raster_io(r, (unsigned char *)&fh, sizeof(fh)) == sizeof(fh));
   }
   else
-    return ((*r->iocb)(r->ctx, (unsigned char *)&(r->header), sizeof(r->header))
+    return (cups_raster_io(r, (unsigned char *)&(r->header), sizeof(r->header))
 		== sizeof(r->header));
 }
 
@@ -722,10 +723,10 @@
       * Write the byte-swapped buffer...
       */
 
-      return ((*r->iocb)(r->ctx, r->buffer, len));      
+      return (cups_raster_io(r, r->buffer, len));
     }
     else
-      return ((*r->iocb)(r->ctx, p, len));
+      return (cups_raster_io(r, p, len));
   }
 
  /*
@@ -898,6 +899,37 @@
 
 
 /*
+ * 'cups_raster_io()' - Read/write bytes from a context, handling interruptions.
+ */
+
+static int				/* O - Bytes read or -1 */
+cups_raster_io(cups_raster_t *r,		/* I - Raster stream */
+           unsigned char *buf,		/* I - Buffer for read/write */
+           int           bytes)		/* I - Number of bytes to read/write */
+{
+  ssize_t	count;			/* Number of bytes read/written */
+  size_t	total;			/* Total bytes read/written */
+
+
+  DEBUG_printf(("4cups_raster_io(r=%p, buf=%p, bytes=%d)", r, buf, bytes));
+
+  for (total = 0; total < bytes; total += count, buf += count)
+  {
+    count = (*r->iocb)(r->ctx, buf, bytes - total);
+
+    DEBUG_printf(("5cups_raster_io: count=%d, total=%d", (int)count,
+                  (int)total));
+    if (count == 0)
+      return (0);
+    else if (count < 0)
+      return (-1);
+  }
+
+  return ((int)total);
+}
+
+
+/*
  * 'cups_raster_read()' - Read through the raster buffer.
  */
 
@@ -914,7 +946,7 @@
   DEBUG_printf(("cups_raster_read(r=%p, buf=%p, bytes=%d)\n", r, buf, bytes));
 
   if (!r->compressed)
-    return ((*r->iocb)(r->ctx, buf, bytes));
+    return (cups_raster_io(r, buf, bytes));
 
  /*
   * Allocate a read buffer as needed...
@@ -1256,7 +1288,7 @@
         count ++;
 	ptr += bpp;
       }
- 
+
       *wptr++ = 257 - count;
 
       count *= bpp;
@@ -1265,7 +1297,7 @@
     }
   }
 
-  return ((*r->iocb)(r->ctx, r->buffer, wptr - r->buffer));
+  return (cups_raster_io(r, r->buffer, wptr - r->buffer));
 }
 
 
@@ -1276,30 +1308,18 @@
 static ssize_t				/* O - Bytes read or -1 */
 cups_read_fd(void          *ctx,	/* I - File descriptor as pointer */
              unsigned char *buf,	/* I - Buffer for read */
-	     size_t        bytes)	/* I - Number of bytes to read */
+	     size_t        bytes)	/* I - Maximum number of bytes to read */
 {
   int		fd = (int)((intptr_t)ctx);
 					/* File descriptor */
   ssize_t	count;			/* Number of bytes read */
-  size_t	total;			/* Total bytes read */
 
 
-  for (total = 0; total < bytes; total += count, buf += count)
-  {
-    count = read(fd, buf, bytes - total);
+  while ((count = read(fd, buf, bytes)) < 0)
+    if (errno != EINTR && errno != EAGAIN)
+      return (-1);
 
-    if (count == 0)
-      return (0);
-    else if (count < 0)
-    {
-      if (errno == EINTR)
-        count = 0;
-      else
-        return (-1);
-    }
-  }
-
-  return ((ssize_t)total);
+  return (count);
 }
 
 
@@ -1341,23 +1361,13 @@
   int		fd = (int)((intptr_t)ctx);
 					/* File descriptor */
   ssize_t	count;			/* Number of bytes written */
-  size_t	total;			/* Total bytes written */
 
 
-  for (total = 0; total < bytes; total += count, buf += count)
-  {
-    count = write(fd, buf, bytes - total);
+  while ((count = write(fd, buf, bytes)) < 0)
+    if (errno != EINTR && errno != EAGAIN)
+      return (-1);
 
-    if (count < 0)
-    {
-      if (errno == EINTR)
-        count = 0;
-      else
-        return (-1);
-    }
-  }
-
-  return ((ssize_t)total);
+  return (count);
 }
 
 


_______________________________________________
cups-bugs mailing list
cups-bugs@easysw.com
http://lists.easysw.com/mailman/listinfo/cups-bugs


[prev in list] [next in list] [prev in thread] [next in thread] 

Configure | About | News | Add a list | Sponsored by KoreLogic