initial checkin

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1457 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/bin/error.c

@@ -0,0 +1,67 @@
+// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+//
+//  Copyright (c) 2001-2002, OpenBeOS
+//
+//  This software is part of the OpenBeOS distribution and is covered 
+//  by the OpenBeOS license.
+//
+//
+//  File:        error.c
+//  Author:      Daniel Reinhold ([email protected])
+//  Description: displays error message text for OS error codes
+//
+// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+
+#include <OS.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <errno.h>
+
+
+void print_error(char *);
+
+
+int
+main(int argc, char *argv[])
+{
+	if (argc != 2)
+		printf("usage: error number\n"
+		       "Displays the message text for OS error codes. "
+		       "The error number can be in decimal, hex or octal.\n");
+	else
+		print_error(argv[1]);
+	
+	return 0;
+}
+
+
+void
+print_error(char *str)
+{
+	uint32 err;
+	int    base = 10;
+	char  *end;
+	
+	if (str[0] == '0') {
+		if (tolower(str[1]) == 'x')
+			base = 16;
+		else
+			base = 8;
+	}
+	
+	errno = 0;
+	err = strtoul(str, &end, base);
+	
+	if (errno) {
+		fprintf(stderr, "%s: %s\n", str, strerror(errno));
+		exit(1);
+	}
+	
+	if (*end) {
+		fprintf(stderr, "%s: invalid number\n", str);
+		exit(1);
+	}
+	
+	printf("0x%x: %s\n", err, strerror(err));
+}