Login prompt function, part of waldi's telnetd from inetd patch

diff --git a/libbb/login.c b/libbb/login.c
new file mode 100644 (file)
index 0000000..9b33f6c
--- /dev/null
+++ b/libbb/login.c
@@ -0,0 +1,124 @@
+/*
+ * issue.c: issue printing code
+ *
+ * Copyright (C) 2003 Bastian Blank <waldi@tuxbox.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * $Id: login.c,v 1.1 2003/01/21 20:59:34 bug1 Exp $
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include "busybox.h"
+
+#include <sys/utsname.h>
+#include <time.h>
+
+#define LOGIN " login: "
+
+static char fmtstr_d[] = { "%A, %d %B %Y" };
+static char fmtstr_t[] = { "%H:%M:%S" };
+
+void print_login_issue(const char *issue_file, const char *tty)
+{
+       FILE *fd;
+       int c;
+       char buf[256];
+       char *ret;
+       time_t t;
+       struct utsname uts;
+
+       time(&t);
+       uname(&uts);
+
+       puts("");       /* start a new line */
+
+       if ((fd = fopen(issue_file, "r"))) {
+               while ((c = fgetc(fd)) != EOF) {
+                       if (c == '\\' || c == '%') {
+                               c = fgetc(fd);
+
+                               switch (c) {
+                                       case 's':
+                                               fputs(uts.sysname, stdout);
+                                               break;
+
+                                       case 'n':
+                                               fputs(uts.nodename, stdout);
+                                               break;
+
+                                       case 'r':
+                                               fputs(uts.release, stdout);
+                                               break;
+
+                                       case 'v':
+                                               fputs(uts.version, stdout);
+                                               break;
+
+                                       case 'm':
+                                               fputs(uts.machine, stdout);
+                                               break;
+
+                                       case 'D':
+                                       case 'o':
+                                               getdomainname(buf, sizeof(buf));
+                                               buf[sizeof(buf) - 1] = '\0';
+                                               fputs(buf, stdout);
+                                               break;
+
+                                       case 'd':
+                                               strftime(buf, sizeof(buf), fmtstr_d, localtime(&t));
+                                               fputs(buf, stdout);
+                                               break;
+
+                                       case 't':
+                                               strftime(buf, sizeof(buf), fmtstr_t, localtime(&t));
+                                               fputs(buf, stdout);
+                                               break;
+
+                                       case 'h':
+                                               gethostname(buf, sizeof(buf));
+                                               fputs(buf, stdout);
+                                               break;
+
+                                       case 'l':
+                                               printf("%s", tty);
+
+                                       default:
+                                               putchar(c);
+                               }
+                       } else
+                               putchar(c);
+               }
+
+               puts("");       /* start a new line */
+               fflush(stdout);
+
+               fclose(fd);
+       }
+}
+
+void print_login_prompt(void)
+{
+       char buf[MAXHOSTNAMELEN];
+
+       gethostname(buf, MAXHOSTNAMELEN);
+       fputs(buf, stdout);
+
+       fputs(LOGIN, stdout);
+       fflush(stdout);
+}
+