This commit was manufactured by cvs2svn to create branch

'GNUPG-1-9-BRANCH'.

common/miscellaneous.c

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+/* miscellaneous.c - Stuff not fitting elsewhere
+ *	Copyright (C) 2003 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include "util.h"
+#include "iobuf.h"
+
+/* Decide whether the filename is stdout or a real filename and return
+ * an appropriate string.  */
+const char *
+print_fname_stdout (const char *s)
+{
+    if( !s || (*s == '-' && !s[1]) )
+	return "[stdout]";
+    return s;
+}
+
+
+/* Decide whether the filename is stdin or a real filename and return
+ * an appropriate string.  */
+const char *
+print_fname_stdin (const char *s)
+{
+    if( !s || (*s == '-' && !s[1]) )
+	return "[stdin]";
+    return s;
+}
+
+void
+print_string( FILE *fp, const byte *p, size_t n, int delim )
+{
+  print_sanitized_buffer (fp, p, n, delim);
+}
+
+void
+print_utf8_string2 ( FILE *fp, const byte *p, size_t n, int delim )
+{
+  print_sanitized_utf8_buffer (fp, p, n, delim);
+}
+
+void
+print_utf8_string( FILE *fp, const byte *p, size_t n )
+{
+    print_utf8_string2 (fp, p, n, 0);
+}
+
+char *
+make_printable_string( const byte *p, size_t n, int delim )
+{
+  return sanitize_buffer (p, n, delim);
+}
+
+
+/*
+ * Check if the file is compressed.
+ */
+int
+is_file_compressed (const char *s, int *ret_rc)
+{
+    iobuf_t a;
+    byte buf[4];
+    int i, rc = 0;
+
+    struct magic_compress_s {
+        size_t len;
+        byte magic[4];
+    } magic[] = {
+        { 3, { 0x42, 0x5a, 0x68, 0x00 } }, /* bzip2 */
+        { 3, { 0x1f, 0x8b, 0x08, 0x00 } }, /* gzip */
+        { 4, { 0x50, 0x4b, 0x03, 0x04 } }, /* (pk)zip */
+    };
+    
+    if ( !s || (*s == '-' && !s[1]) || !ret_rc )
+        return 0; /* We can't check stdin or no file was given */
+
+    a = iobuf_open( s );
+    if ( a == NULL ) {
+        *ret_rc = gpg_error_from_errno (errno);
+        return 0;
+    }
+
+    if ( iobuf_get_filelength( a ) < 4 ) {
+        *ret_rc = 0;
+        goto leave;
+    }
+
+    if ( iobuf_read( a, buf, 4 ) == -1 ) {
+        *ret_rc = a->error;
+        goto leave;
+    }
+
+    for ( i = 0; i < DIM( magic ); i++ ) {
+        if ( !memcmp( buf, magic[i].magic, magic[i].len ) ) {
+            *ret_rc = 0;
+            rc = 1;
+            break;
+        }
+    }
+
+leave:    
+    iobuf_close( a );
+    return rc;
+}
+
+
+