* bsdlib.cc (_vwarnx): New function.

(vwarn): Ditto.
	(vwarnx): Ditto.
	(warn): Ditto.
	(warnx): Ditto.
	(verr): Ditto.
	(verrx): Ditto.
	(err): Ditto.
	(errx): Ditto.
	* cygwin.din: Export above functions.
	* include/err.h: New file.
	* include/cygwin/version.h: Bump API minor number.

winsup/cygwin/ChangeLog

@@ -1,3 +1,18 @@
+2003-11-06  Corinna Vinschen  <corinna@vinschen.de>
+
+	* bsdlib.cc (_vwarnx): New function.
+	(vwarn): Ditto.
+	(vwarnx): Ditto.
+	(warn): Ditto.
+	(warnx): Ditto.
+	(verr): Ditto.
+	(verrx): Ditto.
+	(err): Ditto.
+	(errx): Ditto.
+	* cygwin.din: Export above functions.
+	* include/err.h: New file.
+	* include/cygwin/version.h: Bump API minor number.
+
 2003-11-06  Corinna Vinschen  <corinna@vinschen.de>
 
 	* syscalls.cc (getshmlba): New function.

winsup/cygwin/include/cygwin/version.h

@@ -225,13 +225,14 @@ details. */
        98: Export _tmpfile64.
        99: CW_GET_POSIX_SECURITY_ATTRIBUTE addition to external.cc.
       100: CW_GET_SHMLBA addition to external.cc.
+      101: Export err, errx, verr, verrx, warn, warnx, vwarn, vwarnx.
 
      */
 
      /* Note that we forgot to bump the api for ualarm, strtoll, strtoull */
 
 #define CYGWIN_VERSION_API_MAJOR 0
-#define CYGWIN_VERSION_API_MINOR 100
+#define CYGWIN_VERSION_API_MINOR 101
 
      /* There is also a compatibity version number associated with the
 	shared memory regions.  It is incremented when incompatible

winsup/cygwin/include/err.h

@@ -0,0 +1,33 @@
+/* err.h
+
+   Copyright 2003 Red Hat, Inc.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef _ERR_H
+#define _ERR_H
+
+#include <sys/cdefs.h>
+#include <stdarg.h>
+
+__BEGIN_DECLS
+
+extern void warn (const char *fmt, ...);
+extern void warnx (const char *fmt, ...);
+
+extern void err (int eval, const char *fmt, ...);
+extern void errx (int eval, const char *fmt, ...);
+
+extern void vwarn (const char *fmt, va_list ap);
+extern void vwarnx (const char *fmt, va_list ap);
+
+extern void verr (int eval, const char *fmt, va_list ap);
+extern void verrx (int eval, const char *fmt, va_list ap);
+
+__END_DECLS
+
+#endif /* _ERR_H */

winsup/cygwin/libc/bsdlib.cc

@@ -31,7 +31,9 @@
  */
 
 #include "winsup.h"
+#include <stdio.h>
 #include <stdlib.h>
+#include <stdarg.h>
 #include <utmp.h>
 #include <unistd.h>
 #include <sys/termios.h>
@@ -163,3 +165,74 @@ forkpty (int *amaster, char *name, struct termios *termp, struct winsize *winp)
   return pid;
 }
 
+extern "C" char *__progname;
+
+static void
+_vwarnx (const char *fmt, va_list ap)
+{
+  fprintf (stderr, "%s: ", __progname);
+  vfprintf (stderr, fmt, ap);
+}
+
+extern "C" void
+vwarn (const char *fmt, va_list ap)
+{
+  _vwarnx (fmt, ap);
+  fprintf (stderr, ": %s", strerror (get_errno ()));
+  fputc ('\n', stderr);
+}
+
+extern "C" void
+vwarnx (const char *fmt, va_list ap)
+{
+  _vwarnx (fmt, ap);
+  fputc ('\n', stderr);
+}
+
+extern "C" void
+warn (const char *fmt, ...)
+{
+  va_list ap;
+  va_start (ap, fmt);
+  vwarn (fmt, ap);
+}
+
+extern "C" void
+warnx (const char *fmt, ...)
+{
+  va_list ap;
+  va_start (ap, fmt);
+  vwarnx (fmt, ap);
+}
+
+extern "C" void
+verr (int eval, const char *fmt, va_list ap)
+{
+  vwarn (fmt, ap);
+  exit (eval);
+}
+
+extern "C" void
+verrx (int eval, const char *fmt, va_list ap)
+{
+  vwarnx (fmt, ap);
+  exit (eval);
+}
+
+extern "C" void
+err (int eval, const char *fmt, ...)
+{
+  va_list ap;
+  va_start (ap, fmt);
+  vwarn (fmt, ap);
+  exit (eval);
+}
+
+extern "C" void
+errx (int eval, const char *fmt, ...)
+{
+  va_list ap;
+  va_start (ap, fmt);
+  vwarnx (fmt, ap);
+  exit (eval);
+}