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-rw-r--r--e2fslib/et/com_err.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/e2fslib/et/com_err.c b/e2fslib/et/com_err.c
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+++ b/e2fslib/et/com_err.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright 1987, 1988 by MIT Student Information Processing Board.
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose is hereby granted, provided that
+ * the names of M.I.T. and the M.I.T. S.I.P.B. not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. M.I.T. and the
+ * M.I.T. S.I.P.B. make no representations about the suitability of
+ * this software for any purpose. It is provided "as is" without
+ * express or implied warranty.
+ */
+
+#include <stdio.h>
+#include "com_err.h"
+#include "error_table.h"
+#include "internal.h"
+
+#if !defined(__STDC__) && !defined(STDARG_PROTOTYPES)
+#include <varargs.h>
+#define VARARGS
+#endif
+
+static void
+#ifdef __STDC__
+ default_com_err_proc (const char *whoami, errcode_t code, const
+ char *fmt, va_list args)
+#else
+ default_com_err_proc (whoami, code, fmt, args)
+ const char *whoami;
+ errcode_t code;
+ const char *fmt;
+ va_list args;
+#endif
+{
+ if (whoami) {
+ fputs(whoami, stderr);
+ fputs(": ", stderr);
+ }
+ if (code) {
+ fputs(error_message(code), stderr);
+ fputs(" ", stderr);
+ }
+ if (fmt) {
+ vfprintf (stderr, fmt, args);
+ }
+ /* should do this only on a tty in raw mode */
+ putc('\r', stderr);
+ putc('\n', stderr);
+ fflush(stderr);
+}
+
+#ifdef __STDC__
+typedef void (*errf) (const char *, errcode_t, const char *, va_list);
+#else
+typedef void (*errf) ();
+#endif
+
+errf com_err_hook = default_com_err_proc;
+
+#ifdef __STDC__
+void com_err_va (const char *whoami, errcode_t code, const char *fmt,
+ va_list args)
+#else
+void com_err_va (whoami, code, fmt, args)
+ const char *whoami;
+ errcode_t code;
+ const char *fmt;
+ va_list args;
+#endif
+{
+ (*com_err_hook) (whoami, code, fmt, args);
+}
+
+#ifndef VARARGS
+void com_err (const char *whoami,
+ errcode_t code,
+ const char *fmt, ...)
+{
+#else
+void com_err (va_alist)
+ va_dcl
+{
+ const char *whoami, *fmt;
+ errcode_t code;
+#endif
+ va_list pvar;
+
+ if (!com_err_hook)
+ com_err_hook = default_com_err_proc;
+#ifdef VARARGS
+ va_start (pvar);
+ whoami = va_arg (pvar, const char *);
+ code = va_arg (pvar, errcode_t);
+ fmt = va_arg (pvar, const char *);
+#else
+ va_start(pvar, fmt);
+#endif
+ com_err_va (whoami, code, fmt, pvar);
+ va_end(pvar);
+}
+
+errf set_com_err_hook (new_proc)
+ errf new_proc;
+{
+ errf x = com_err_hook;
+
+ if (new_proc)
+ com_err_hook = new_proc;
+ else
+ com_err_hook = default_com_err_proc;
+
+ return x;
+}
+
+errf reset_com_err_hook () {
+ errf x = com_err_hook;
+ com_err_hook = default_com_err_proc;
+ return x;
+}