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-rw-r--r--grub-core/lib/libgcrypt/src/misc.c298
1 files changed, 298 insertions, 0 deletions
diff --git a/grub-core/lib/libgcrypt/src/misc.c b/grub-core/lib/libgcrypt/src/misc.c
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+++ b/grub-core/lib/libgcrypt/src/misc.c
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+/* misc.c
+ * Copyright (C) 1999, 2001, 2002, 2003, 2007,
+ * 2008 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <unistd.h>
+
+#include "g10lib.h"
+#include "secmem.h"
+
+static int verbosity_level = 0;
+
+static void (*fatal_error_handler)(void*,int, const char*) = NULL;
+static void *fatal_error_handler_value = 0;
+static void (*log_handler)(void*,int, const char*, va_list) = NULL;
+static void *log_handler_value = 0;
+
+static const char *(*user_gettext_handler)( const char * ) = NULL;
+
+void
+gcry_set_gettext_handler( const char *(*f)(const char*) )
+{
+ user_gettext_handler = f;
+}
+
+
+const char *
+_gcry_gettext( const char *key )
+{
+ if( user_gettext_handler )
+ return user_gettext_handler( key );
+ /* FIXME: switch the domain to gnupg and restore later */
+ return key;
+}
+
+void
+gcry_set_fatalerror_handler( void (*fnc)(void*,int, const char*), void *value)
+{
+ fatal_error_handler_value = value;
+ fatal_error_handler = fnc;
+}
+
+static void
+write2stderr( const char *s )
+{
+ /* Dummy variable to silence gcc warning. */
+ int res = write( 2, s, strlen(s) );
+ (void) res;
+}
+
+/*
+ * This function is called for fatal errors. A caller might want to
+ * set his own handler because this function simply calls abort().
+ */
+void
+_gcry_fatal_error (int rc, const char *text)
+{
+ if ( !text ) /* get a default text */
+ text = gpg_strerror (rc);
+
+ if (fatal_error_handler && !fips_mode () )
+ fatal_error_handler (fatal_error_handler_value, rc, text);
+
+ fips_signal_fatal_error (text);
+ write2stderr("\nFatal error: ");
+ write2stderr(text);
+ write2stderr("\n");
+ _gcry_secmem_term ();
+ abort ();
+}
+
+void
+gcry_set_log_handler( void (*f)(void*,int, const char*, va_list ),
+ void *opaque )
+{
+ log_handler = f;
+ log_handler_value = opaque;
+}
+
+void
+_gcry_set_log_verbosity( int level )
+{
+ verbosity_level = level;
+}
+
+int
+_gcry_log_verbosity( int level )
+{
+ return verbosity_level >= level;
+}
+
+/****************
+ * This is our log function which prints all log messages to stderr or
+ * using the function defined with gcry_set_log_handler().
+ */
+static void
+_gcry_logv( int level, const char *fmt, va_list arg_ptr )
+{
+ if (log_handler)
+ log_handler (log_handler_value, level, fmt, arg_ptr);
+ else
+ {
+ switch (level)
+ {
+ case GCRY_LOG_CONT: break;
+ case GCRY_LOG_INFO: break;
+ case GCRY_LOG_WARN: break;
+ case GCRY_LOG_ERROR: break;
+ case GCRY_LOG_FATAL: fputs("Fatal: ",stderr ); break;
+ case GCRY_LOG_BUG: fputs("Ohhhh jeeee: ", stderr); break;
+ case GCRY_LOG_DEBUG: fputs("DBG: ", stderr ); break;
+ default: fprintf(stderr,"[Unknown log level %d]: ", level ); break;
+ }
+ vfprintf(stderr,fmt,arg_ptr) ;
+ }
+
+ if ( level == GCRY_LOG_FATAL || level == GCRY_LOG_BUG )
+ {
+ fips_signal_fatal_error ("internal error (fatal or bug)");
+ _gcry_secmem_term ();
+ abort ();
+ }
+}
+
+
+void
+_gcry_log( int level, const char *fmt, ... )
+{
+ va_list arg_ptr ;
+
+ va_start( arg_ptr, fmt ) ;
+ _gcry_logv( level, fmt, arg_ptr );
+ va_end(arg_ptr);
+}
+
+
+#if defined(JNLIB_GCC_M_FUNCTION) || __STDC_VERSION__ >= 199901L
+void
+_gcry_bug( const char *file, int line, const char *func )
+{
+ _gcry_log( GCRY_LOG_BUG,
+ ("... this is a bug (%s:%d:%s)\n"), file, line, func );
+ abort(); /* never called, but it makes the compiler happy */
+}
+void
+_gcry_assert_failed (const char *expr, const char *file, int line,
+ const char *func)
+{
+ _gcry_log (GCRY_LOG_BUG,
+ ("Assertion `%s' failed (%s:%d:%s)\n"), expr, file, line, func );
+ abort(); /* Never called, but it makes the compiler happy. */
+}
+#else
+void
+_gcry_bug( const char *file, int line )
+{
+ _gcry_log( GCRY_LOG_BUG,
+ _("you found a bug ... (%s:%d)\n"), file, line);
+ abort(); /* never called, but it makes the compiler happy */
+}
+void
+_gcry_assert_failed (const char *expr, const char *file, int line)
+{
+ _gcry_log (GCRY_LOG_BUG,
+ ("Assertion `%s' failed (%s:%d)\n"), expr, file, line);
+ abort(); /* Never called, but it makes the compiler happy. */
+}
+#endif
+
+void
+_gcry_log_info( const char *fmt, ... )
+{
+ va_list arg_ptr ;
+
+ va_start( arg_ptr, fmt ) ;
+ _gcry_logv( GCRY_LOG_INFO, fmt, arg_ptr );
+ va_end(arg_ptr);
+}
+
+int
+_gcry_log_info_with_dummy_fp (FILE *fp, const char *fmt, ... )
+{
+ va_list arg_ptr;
+
+ (void)fp;
+ va_start( arg_ptr, fmt ) ;
+ _gcry_logv( GCRY_LOG_INFO, fmt, arg_ptr );
+ va_end(arg_ptr);
+ return 0;
+}
+
+void
+_gcry_log_error( const char *fmt, ... )
+{
+ va_list arg_ptr ;
+
+ va_start( arg_ptr, fmt ) ;
+ _gcry_logv( GCRY_LOG_ERROR, fmt, arg_ptr );
+ va_end(arg_ptr);
+}
+
+
+void
+_gcry_log_fatal( const char *fmt, ... )
+{
+ va_list arg_ptr ;
+
+ va_start( arg_ptr, fmt ) ;
+ _gcry_logv( GCRY_LOG_FATAL, fmt, arg_ptr );
+ va_end(arg_ptr);
+ abort(); /* never called, but it makes the compiler happy */
+}
+
+void
+_gcry_log_bug( const char *fmt, ... )
+{
+ va_list arg_ptr ;
+
+ va_start( arg_ptr, fmt ) ;
+ _gcry_logv( GCRY_LOG_BUG, fmt, arg_ptr );
+ va_end(arg_ptr);
+ abort(); /* never called, but it makes the compiler happy */
+}
+
+void
+_gcry_log_debug( const char *fmt, ... )
+{
+ va_list arg_ptr ;
+
+ va_start( arg_ptr, fmt ) ;
+ _gcry_logv( GCRY_LOG_DEBUG, fmt, arg_ptr );
+ va_end(arg_ptr);
+}
+
+
+void
+_gcry_log_printf (const char *fmt, ...)
+{
+ va_list arg_ptr;
+
+ if (fmt)
+ {
+ va_start( arg_ptr, fmt ) ;
+ _gcry_logv (GCRY_LOG_CONT, fmt, arg_ptr);
+ va_end(arg_ptr);
+ }
+}
+
+/* Print a hexdump of BUFFER. With TEXT of NULL print just the raw
+ dump, with TEXT an empty string, print a trailing linefeed,
+ otherwise print an entire debug line. */
+void
+_gcry_log_printhex (const char *text, const void *buffer, size_t length)
+{
+ if (text && *text)
+ log_debug ("%s ", text);
+ if (length)
+ {
+ const unsigned char *p = buffer;
+ log_printf ("%02X", *p);
+ for (length--, p++; length--; p++)
+ log_printf (" %02X", *p);
+ }
+ if (text)
+ log_printf ("\n");
+}
+
+
+void
+_gcry_burn_stack (int bytes)
+{
+ char buf[64];
+
+ wipememory (buf, sizeof buf);
+ bytes -= sizeof buf;
+ if (bytes > 0)
+ _gcry_burn_stack (bytes);
+}