Commit 2c4832d30939b45c05757f0a05128ce64c4cacc7

Werner Lemberg 2014-11-07T07:42:33

Fix Savannah bug #43535. * src/bdf/bdflib.c (_bdf_strncmp): New macro that checks one character more than `strncmp'. s/ft_strncmp/_bdf_strncmp/ everywhere.

diff --git a/ChangeLog b/ChangeLog
index d709e41..22060e7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,9 +1,17 @@
+2014-11-07  Werner Lemberg  <wl@gnu.org>
+
+	Fix Savannah bug #43535.
+
+	* src/bdf/bdflib.c (_bdf_strncmp): New macro that checks one
+	character more than `strncmp'.
+	s/ft_strncmp/_bdf_strncmp/ everywhere.
+
 2014-11-06  Werner Lemberg  <wl@gnu.org>
 
 	Fix Savannah bug #43548.
 
-	* src/pcf/pcfread (pcf_get_encodings): Add sanity checks for row and
-	column values.
+	* src/pcf/pcfread.c (pcf_get_encodings): Add sanity checks for row
+	and column values.
 
 2014-11-06  Werner Lemberg  <wl@gnu.org>
 
diff --git a/src/bdf/bdflib.c b/src/bdf/bdflib.c
index 2eda11c..c128526 100644
--- a/src/bdf/bdflib.c
+++ b/src/bdf/bdflib.c
@@ -169,6 +169,18 @@
                         sizeof ( _bdf_properties[0] );
 
 
+  /* An auxiliary macro to parse properties, to be used in conditionals. */
+  /* It behaves like `strncmp' but also tests the following character    */
+  /* whether it is a whitespace or NULL.                                 */
+  /* `property' is a constant string of length `n' to compare with.      */
+#define _bdf_strncmp( name, property, n )      \
+          ( ft_strncmp( name, property, n ) || \
+            !( name[n] == ' '  ||              \
+               name[n] == '\0' ||              \
+               name[n] == '\n' ||              \
+               name[n] == '\r' ||              \
+               name[n] == '\t' )            )
+
   /* Auto correction messages. */
 #define ACMSG1   "FONT_ASCENT property missing.  " \
                  "Added `FONT_ASCENT %hd'.\n"
@@ -1408,7 +1420,7 @@
 
     /* If the property happens to be a comment, then it doesn't need */
     /* to be added to the internal hash table.                       */
-    if ( ft_strncmp( name, "COMMENT", 7 ) != 0 )
+    if ( _bdf_strncmp( name, "COMMENT", 7 ) != 0 )
     {
       /* Add the property to the font property table. */
       error = hash_insert( fp->name,
@@ -1426,13 +1438,13 @@
     /* FONT_ASCENT and FONT_DESCENT need to be assigned if they are        */
     /* present, and the SPACING property should override the default       */
     /* spacing.                                                            */
-    if ( ft_strncmp( name, "DEFAULT_CHAR", 12 ) == 0 )
+    if ( _bdf_strncmp( name, "DEFAULT_CHAR", 12 ) == 0 )
       font->default_char = fp->value.l;
-    else if ( ft_strncmp( name, "FONT_ASCENT", 11 ) == 0 )
+    else if ( _bdf_strncmp( name, "FONT_ASCENT", 11 ) == 0 )
       font->font_ascent = fp->value.l;
-    else if ( ft_strncmp( name, "FONT_DESCENT", 12 ) == 0 )
+    else if ( _bdf_strncmp( name, "FONT_DESCENT", 12 ) == 0 )
       font->font_descent = fp->value.l;
-    else if ( ft_strncmp( name, "SPACING", 7 ) == 0 )
+    else if ( _bdf_strncmp( name, "SPACING", 7 ) == 0 )
     {
       if ( !fp->value.atom )
       {
@@ -1490,7 +1502,7 @@
     memory = font->memory;
 
     /* Check for a comment. */
-    if ( ft_strncmp( line, "COMMENT", 7 ) == 0 )
+    if ( _bdf_strncmp( line, "COMMENT", 7 ) == 0 )
     {
       linelen -= 7;
 
@@ -1507,7 +1519,7 @@
     /* The very first thing expected is the number of glyphs. */
     if ( !( p->flags & _BDF_GLYPHS ) )
     {
-      if ( ft_strncmp( line, "CHARS", 5 ) != 0 )
+      if ( _bdf_strncmp( line, "CHARS", 5 ) != 0 )
       {
         FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "CHARS" ));
         error = FT_THROW( Missing_Chars_Field );
@@ -1541,7 +1553,7 @@
     }
 
     /* Check for the ENDFONT field. */
-    if ( ft_strncmp( line, "ENDFONT", 7 ) == 0 )
+    if ( _bdf_strncmp( line, "ENDFONT", 7 ) == 0 )
     {
       /* Sort the glyphs by encoding. */
       ft_qsort( (char *)font->glyphs,
@@ -1555,7 +1567,7 @@
     }
 
     /* Check for the ENDCHAR field. */
-    if ( ft_strncmp( line, "ENDCHAR", 7 ) == 0 )
+    if ( _bdf_strncmp( line, "ENDCHAR", 7 ) == 0 )
     {
       p->glyph_enc = 0;
       p->flags    &= ~_BDF_GLYPH_BITS;
@@ -1571,7 +1583,7 @@
       goto Exit;
 
     /* Check for the STARTCHAR field. */
-    if ( ft_strncmp( line, "STARTCHAR", 9 ) == 0 )
+    if ( _bdf_strncmp( line, "STARTCHAR", 9 ) == 0 )
     {
       /* Set the character name in the parse info first until the */
       /* encoding can be checked for an unencoded character.      */
@@ -1605,7 +1617,7 @@
     }
 
     /* Check for the ENCODING field. */
-    if ( ft_strncmp( line, "ENCODING", 8 ) == 0 )
+    if ( _bdf_strncmp( line, "ENCODING", 8 ) == 0 )
     {
       if ( !( p->flags & _BDF_GLYPH ) )
       {
@@ -1791,7 +1803,7 @@
     }
 
     /* Expect the SWIDTH (scalable width) field next. */
-    if ( ft_strncmp( line, "SWIDTH", 6 ) == 0 )
+    if ( _bdf_strncmp( line, "SWIDTH", 6 ) == 0 )
     {
       if ( !( p->flags & _BDF_ENCODING ) )
         goto Missing_Encoding;
@@ -1807,7 +1819,7 @@
     }
 
     /* Expect the DWIDTH (scalable width) field next. */
-    if ( ft_strncmp( line, "DWIDTH", 6 ) == 0 )
+    if ( _bdf_strncmp( line, "DWIDTH", 6 ) == 0 )
     {
       if ( !( p->flags & _BDF_ENCODING ) )
         goto Missing_Encoding;
@@ -1835,7 +1847,7 @@
     }
 
     /* Expect the BBX field next. */
-    if ( ft_strncmp( line, "BBX", 3 ) == 0 )
+    if ( _bdf_strncmp( line, "BBX", 3 ) == 0 )
     {
       if ( !( p->flags & _BDF_ENCODING ) )
         goto Missing_Encoding;
@@ -1903,7 +1915,7 @@
     }
 
     /* And finally, gather up the bitmap. */
-    if ( ft_strncmp( line, "BITMAP", 6 ) == 0 )
+    if ( _bdf_strncmp( line, "BITMAP", 6 ) == 0 )
     {
       unsigned long  bitmap_size;
 
@@ -1978,7 +1990,7 @@
     p    = (_bdf_parse_t *)    client_data;
 
     /* Check for the end of the properties. */
-    if ( ft_strncmp( line, "ENDPROPERTIES", 13 ) == 0 )
+    if ( _bdf_strncmp( line, "ENDPROPERTIES", 13 ) == 0 )
     {
       /* If the FONT_ASCENT or FONT_DESCENT properties have not been      */
       /* encountered yet, then make sure they are added as properties and */
@@ -2019,12 +2031,12 @@
     }
 
     /* Ignore the _XFREE86_GLYPH_RANGES properties. */
-    if ( ft_strncmp( line, "_XFREE86_GLYPH_RANGES", 21 ) == 0 )
+    if ( _bdf_strncmp( line, "_XFREE86_GLYPH_RANGES", 21 ) == 0 )
       goto Exit;
 
     /* Handle COMMENT fields and properties in a special way to preserve */
     /* the spacing.                                                      */
-    if ( ft_strncmp( line, "COMMENT", 7 ) == 0 )
+    if ( _bdf_strncmp( line, "COMMENT", 7 ) == 0 )
     {
       name = value = line;
       value += 7;
@@ -2088,7 +2100,7 @@
 
     /* Check for a comment.  This is done to handle those fonts that have */
     /* comments before the STARTFONT line for some reason.                */
-    if ( ft_strncmp( line, "COMMENT", 7 ) == 0 )
+    if ( _bdf_strncmp( line, "COMMENT", 7 ) == 0 )
     {
       if ( p->opts->keep_comments != 0 && p->font != 0 )
       {
@@ -2114,7 +2126,7 @@
     {
       memory = p->memory;
 
-      if ( ft_strncmp( line, "STARTFONT", 9 ) != 0 )
+      if ( _bdf_strncmp( line, "STARTFONT", 9 ) != 0 )
       {
         /* we don't emit an error message since this code gets */
         /* explicitly caught one level higher                  */
@@ -2162,7 +2174,7 @@
     }
 
     /* Check for the start of the properties. */
-    if ( ft_strncmp( line, "STARTPROPERTIES", 15 ) == 0 )
+    if ( _bdf_strncmp( line, "STARTPROPERTIES", 15 ) == 0 )
     {
       if ( !( p->flags & _BDF_FONT_BBX ) )
       {
@@ -2191,7 +2203,7 @@
     }
 
     /* Check for the FONTBOUNDINGBOX field. */
-    if ( ft_strncmp( line, "FONTBOUNDINGBOX", 15 ) == 0 )
+    if ( _bdf_strncmp( line, "FONTBOUNDINGBOX", 15 ) == 0 )
     {
       if ( !( p->flags & _BDF_SIZE ) )
       {
@@ -2222,7 +2234,7 @@
     }
 
     /* The next thing to check for is the FONT field. */
-    if ( ft_strncmp( line, "FONT", 4 ) == 0 )
+    if ( _bdf_strncmp( line, "FONT", 4 ) == 0 )
     {
       error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
       if ( error )
@@ -2257,7 +2269,7 @@
     }
 
     /* Check for the SIZE field. */
-    if ( ft_strncmp( line, "SIZE", 4 ) == 0 )
+    if ( _bdf_strncmp( line, "SIZE", 4 ) == 0 )
     {
       if ( !( p->flags & _BDF_FONT_NAME ) )
       {
@@ -2311,7 +2323,7 @@
     }
 
     /* Check for the CHARS field -- font properties are optional */
-    if ( ft_strncmp( line, "CHARS", 5 ) == 0 )
+    if ( _bdf_strncmp( line, "CHARS", 5 ) == 0 )
     {
       char  nbuf[128];