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

1 files changed, 124 insertions, 0 deletions

diff --git a/libbb/login.c b/libbb/login.c
new file mode 100644
index 000000000..9b33f6c40
--- /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);
+}
+