openat: detect Solaris fchownat bug

[pspp] / lib / md2.c

diff --git a/lib/md2.c b/lib/md2.c
index 787b76693b8f8ed41d56ed3a0ad6f0339de86c4d..e585eb808cdfe387e1814723c56eb66e1d7fb47c 100644 (file)
--- a/lib/md2.c
+++ b/lib/md2.c
@@ -1,6 +1,6 @@
 /* Functions to compute MD2 message digest of files or memory blocks.
    according to the definition of MD2 in RFC 1319 from April 1992.
-   Copyright (C) 1995,1996,1997,1999,2000,2001,2002,2003,2005
+   Copyright (C) 1995,1996,1997,1999,2000,2001,2002,2003,2005,2006,2008
    Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify it
@@ -20,12 +20,11 @@
 /* Adapted by Simon Josefsson from public domain Libtomcrypt 1.06 by
    Tom St Denis. */
 
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
 
 #include "md2.h"
 
+#include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
 
@@ -35,7 +34,7 @@
 # include "unlocked-io.h"
 #endif
 
-#define BLOCKSIZE 4096
+#define BLOCKSIZE 32768
 #if BLOCKSIZE % 64 != 0
 # error "invalid BLOCKSIZE"
 #endif
@@ -55,10 +54,7 @@ md2_init_ctx (struct md2_ctx *ctx)
 }
 
 /* Put result from CTX in first 16 bytes following RESBUF.  The result
-   must be in little endian byte order.
-
-   IMPORTANT: On some systems it is required that RESBUF is correctly
-   aligned for a 32 bits value.  */
+   must be in little endian byte order.  */
 void *
 md2_read_ctx (const struct md2_ctx *ctx, void *resbuf)
 {
@@ -68,10 +64,7 @@ md2_read_ctx (const struct md2_ctx *ctx, void *resbuf)
 }
 
 /* Process the remaining bytes in the internal buffer and the usual
-   prolog according to the standard and write the result to RESBUF.
-
-   IMPORTANT: On some systems it is required that RESBUF is correctly
-   aligned for a 32 bits value.  */
+   prolog according to the standard and write the result to RESBUF.  */
 void *
 md2_finish_ctx (struct md2_ctx *ctx, void *resbuf)
 {
@@ -102,9 +95,12 @@ int
 md2_stream (FILE *stream, void *resblock)
 {
   struct md2_ctx ctx;
-  char buffer[BLOCKSIZE + 72];
   size_t sum;
 
+  char *buffer = malloc (BLOCKSIZE + 72);
+  if (!buffer)
+    return 1;
+
   /* Initialize the computation context.  */
   md2_init_ctx (&ctx);
 
@@ -133,7 +129,10 @@ md2_stream (FILE *stream, void *resblock)
                 exit the loop after a partial read due to e.g., EAGAIN
                 or EWOULDBLOCK.  */
              if (ferror (stream))
-               return 1;
+               {
+                 free (buffer);
+                 return 1;
+               }
              goto process_partial_block;
            }
 
@@ -158,6 +157,7 @@ process_partial_block:;
 
   /* Construct result in desired memory.  */
   md2_finish_ctx (&ctx, resblock);
+  free (buffer);
   return 0;
 }