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Diffstat (limited to 'locale')
-rw-r--r--locale/loadlocale.c53
1 files changed, 35 insertions, 18 deletions
diff --git a/locale/loadlocale.c b/locale/loadlocale.c
index 0bb517ca44..c2d5b89bc1 100644
--- a/locale/loadlocale.c
+++ b/locale/loadlocale.c
@@ -1,5 +1,5 @@
 /* Functions to read locale data files.
-   Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -23,7 +23,9 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <sys/mman.h>
+#ifdef _POSIX_MAPPED_FILES
+# include <sys/mman.h>
+#endif
 #include <sys/stat.h>
 
 #include "localeinfo.h"
@@ -87,13 +89,17 @@ _nl_load_locale (struct loaded_l10nfile *file, int category)
       /* LOCALE/LC_foo is a directory; open LOCALE/LC_foo/SYS_LC_foo
            instead.  */
       char *newp;
+      size_t filenamelen;
 
       __close (fd);
 
-      newp = (char *) alloca (strlen (file->filename)
+      filenamelen = strlen (file->filename);
+      newp = (char *) alloca (filenamelen
 			      + 5 + _nl_category_name_sizes[category] + 1);
-      __stpcpy (__stpcpy (__stpcpy (newp, file->filename), "/SYS_"),
-		_nl_category_names[category]);
+      __mempcpy (__mempcpy (__mempcpy (newp, file->filename, filenamelen),
+			    "/SYS_", 5),
+		 _nl_category_names[category],
+		 _nl_category_name_sizes[category] + 1);
 
       fd = __open (newp, O_RDONLY);
       if (fd < 0)
@@ -105,24 +111,32 @@ _nl_load_locale (struct loaded_l10nfile *file, int category)
 
   /* Map in the file's data.  */
   save_err = errno;
-#ifndef MAP_COPY
+#ifdef _POSIX_MAPPED_FILES
+# ifndef MAP_COPY
   /* Linux seems to lack read-only copy-on-write.  */
-#define MAP_COPY MAP_PRIVATE
-#endif
-#ifndef	MAP_FILE
+#  define MAP_COPY MAP_PRIVATE
+# endif
+# ifndef MAP_FILE
   /* Some systems do not have this flag; it is superfluous.  */
-#define	MAP_FILE 0
-#endif
-#ifndef MAP_INHERIT
+#  define MAP_FILE 0
+# endif
+# ifndef MAP_INHERIT
   /* Some systems might lack this; they lose.  */
-#define MAP_INHERIT 0
-#endif
+#  define MAP_INHERIT 0
+# endif
   filedata = (void *) __mmap ((caddr_t) 0, st.st_size, PROT_READ,
 			      MAP_FILE|MAP_COPY|MAP_INHERIT, fd, 0);
-  if ((void *) filedata == MAP_FAILED)
+  if ((void *) filedata != MAP_FAILED)
+    {
+      if (st.st_size < sizeof (*filedata))
+	/* This cannot be a locale data file since it's too small.  */
+	goto puntfd;
+    }
+  else
     {
       if (errno == ENOSYS)
 	{
+#endif	/* _POSIX_MAPPED_FILES */
 	  /* No mmap; allocate a buffer and read from the file.  */
 	  mmaped = 0;
 	  filedata = malloc (st.st_size);
@@ -148,19 +162,20 @@ _nl_load_locale (struct loaded_l10nfile *file, int category)
 	  else
 	    goto puntfd;
 	  __set_errno (save_err);
+#ifdef _POSIX_MAPPED_FILES
 	}
       else
 	goto puntfd;
     }
-  else if (st.st_size < sizeof (*filedata))
-    /* This cannot be a locale data file since it's too small.  */
-    goto puntfd;
+#endif	/* _POSIX_MAPPED_FILES */
 
   if (filedata->magic != LIMAGIC (category))
     /* Bad data file in either byte order.  */
     {
     puntmap:
+#ifdef _POSIX_MAPPED_FILES
       __munmap ((caddr_t) filedata, st.st_size);
+#endif
     puntfd:
       __close (fd);
       return;
@@ -208,9 +223,11 @@ _nl_load_locale (struct loaded_l10nfile *file, int category)
 void
 _nl_unload_locale (struct locale_data *locale)
 {
+#ifdef _POSIX_MAPPED_FILES
   if (locale->mmaped)
     __munmap ((caddr_t) locale->filedata, locale->filesize);
   else
+#endif
     free ((void *) locale->filedata);
 
   free (locale);