Libc-262.tar.gz

[apple/libc.git] / mach / mach_error_string.c

diff --git a/mach/mach_error_string.c b/mach/mach_error_string.c
new file mode 100644 (file)
index 0000000..5934f1c
--- /dev/null
+++ b/mach/mach_error_string.c
@@ -0,0 +1,113 @@
+/*
+ * @OSF_COPYRIGHT@
+ */
+/* 
+ * Mach Operating System
+ * Copyright (c) 1991,1990,1989 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+
+#include <mach/boolean.h>
+#include <mach/error.h>
+#include <mach/mach_error.h>
+
+#include "errorlib.h"
+#include "externs.h"
+
+static void do_compat(mach_error_t *);
+
+static void
+do_compat(mach_error_t *org_err)
+{
+       mach_error_t            err = *org_err;
+
+       /* 
+        * map old error numbers to 
+        * to new error sys & subsystem 
+        */
+
+       if ((-200 < err) && (err <= -100))
+               err = -(err + 100) | IPC_SEND_MOD;
+       else if ((-300 < err) && (err <= -200))
+               err = -(err + 200) | IPC_RCV_MOD;
+       else if ((-400 < err) && (err <= -300))
+               err = -(err + 300) | MACH_IPC_MIG_MOD;
+       else if ((1000 <= err) && (err < 1100))
+               err = (err - 1000) | SERV_NETNAME_MOD;
+       else if ((1600 <= err) && (err < 1700))
+               err = (err - 1600) | SERV_ENV_MOD;
+       else if ((27600 <= err) && (err < 27700))
+               err = (err - 27600) | SERV_EXECD_MOD;
+
+       *org_err = err;
+}
+
+char *
+mach_error_type(mach_error_t err)
+{
+       int sub, system;
+
+       do_compat( &err );
+
+       sub = err_get_sub(err);
+       system = err_get_system(err);
+
+       if (system > err_max_system || sub >= _mach_errors[system].max_sub)
+           return((char *)"(?/?)");
+       return(_mach_errors[system].subsystem[sub].subsys_name);
+}
+
+boolean_t mach_error_full_diag = FALSE;
+
+__private_extern__ char *
+mach_error_string_int(mach_error_t err, boolean_t *diag)
+{
+       int sub, system, code;
+
+       do_compat( &err );
+
+       sub = err_get_sub(err);
+       system = err_get_system(err);
+       code = err_get_code(err);
+
+       *diag = TRUE;
+
+       if (system > err_max_system)
+           return((char *)"(?/?) unknown error system");
+       if (sub >= _mach_errors[system].max_sub)
+           return(_mach_errors[system].bad_sub);
+       if (code >= _mach_errors[system].subsystem[sub].max_code)
+           return ((char *)NO_SUCH_ERROR);
+
+       *diag = mach_error_full_diag;
+       return( _mach_errors[system].subsystem[sub].codes[code] );
+}
+
+char *
+mach_error_string(mach_error_t err)
+{
+       boolean_t diag;
+
+       return mach_error_string_int( err, &diag );
+
+}