1 files changed, 89 insertions, 0 deletions
diff --git a/crypto/heimdal/appl/login/utmpx_login.c b/crypto/heimdal/appl/login/utmpx_login.c
new file mode 100644
index 0000000..745d64c
--- /dev/null
+++ b/crypto/heimdal/appl/login/utmpx_login.c
@@ -0,0 +1,89 @@
+/* Author: Wietse Venema <wietse@wzv.win.tue.nl> */
+
+#include "login_locl.h"
+
+RCSID("$Id: utmpx_login.c,v 1.24 1999/08/04 17:03:15 assar Exp $");
+
+/* utmpx_login - update utmp and wtmp after login */
+
+#ifndef HAVE_UTMPX_H
+int utmpx_login(char *line, const char *user, const char *host) { return 0; }
+#else
+
+static void
+utmpx_update(struct utmpx *ut, char *line, const char *user, const char *host)
+{
+    struct timeval tmp;
+    char *clean_tty = clean_ttyname(line);
+
+    strncpy(ut->ut_line, clean_tty, sizeof(ut->ut_line));
+#ifdef HAVE_STRUCT_UTMPX_UT_ID
+    strncpy(ut->ut_id, make_id(clean_tty), sizeof(ut->ut_id));
+#endif
+    strncpy(ut->ut_user, user, sizeof(ut->ut_user));
+    strncpy(ut->ut_host, host, sizeof(ut->ut_host));
+#ifdef HAVE_STRUCT_UTMPX_UT_SYSLEN
+    ut->ut_syslen = strlen(host) + 1;
+    if (ut->ut_syslen > sizeof(ut->ut_host))
+        ut->ut_syslen = sizeof(ut->ut_host);
+#endif
+    ut->ut_type = USER_PROCESS;
+    gettimeofday (&tmp, 0);
+    ut->ut_tv.tv_sec = tmp.tv_sec;
+    ut->ut_tv.tv_usec = tmp.tv_usec;
+    pututxline(ut);
+#ifdef WTMPX_FILE
+    updwtmpx(WTMPX_FILE, ut);
+#elif defined(WTMP_FILE)
+    {
+	struct utmp utmp;
+	int fd;
+
+	prepare_utmp (&utmp, line, user, host);
+	if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) >= 0) {
+	    write(fd, &utmp, sizeof(struct utmp));
+	    close(fd);
+	}
+    }
+#endif
+}
+
+int
+utmpx_login(char *line, const char *user, const char *host)
+{
+    struct utmpx *ut, save_ut;
+    pid_t   mypid = getpid();
+    int     ret = (-1);
+
+    /*
+     * SYSV4 ttymon and login use tty port names with the "/dev/" prefix
+     * stripped off. Rlogind and telnetd, on the other hand, make utmpx
+     * entries with device names like /dev/pts/nnn. We therefore cannot use
+     * getutxline(). Return nonzero if no utmp entry was found with our own
+     * process ID for a login or user process.
+     */
+
+    while ((ut = getutxent())) {
+        /* Try to find a reusable entry */
+	if (ut->ut_pid == mypid
+	    && (   ut->ut_type == INIT_PROCESS
+		|| ut->ut_type == LOGIN_PROCESS
+		|| ut->ut_type == USER_PROCESS)) {
+	    save_ut = *ut;
+	    utmpx_update(&save_ut, line, user, host);
+	    ret = 0;
+	    break;
+	}
+    }
+    if (ret == -1) {
+        /* Grow utmpx file by one record. */
+        struct utmpx newut;
+	memset(&newut, 0, sizeof(newut));
+	newut.ut_pid = mypid;
+        utmpx_update(&newut, line, user, host);
+	ret = 0;
+    }
+    endutxent();
+    return (ret);
+}
+#endif /* HAVE_UTMPX_H */