1 files changed, 85 insertions, 0 deletions
diff --git a/src/regress/ttyname/check_ttyname.c b/src/regress/ttyname/check_ttyname.c
new file mode 100644
index 0000000..1609cd0
--- /dev/null
+++ b/src/regress/ttyname/check_ttyname.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2013-2016 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif /* HAVE_STRINGS_H */
+#include <unistd.h>
+#include <limits.h>
+#include <errno.h>
+
+#include "sudo_compat.h"
+#include "sudo_fatal.h"
+#include "sudo_util.h"
+#include "sudo_debug.h"
+
+__dso_public int main(int argc, char *argv[]);
+
+int sudo_debug_instance = SUDO_DEBUG_INSTANCE_INITIALIZER;
+extern char *get_process_ttyname(char *name, size_t namelen);
+
+int
+main(int argc, char *argv[])
+{
+    char *tty_libc = NULL, *tty_sudo = NULL;
+    char pathbuf[PATH_MAX];
+    int ret = 1;
+
+    initprogname(argc > 0 ? argv[0] : "check_ttyname");
+
+    /* Lookup tty name using kernel info if possible. */
+    if (get_process_ttyname(pathbuf, sizeof(pathbuf)) != NULL)
+	tty_sudo = pathbuf;
+
+#if defined(HAVE_KINFO_PROC2_NETBSD) || \
+    defined(HAVE_KINFO_PROC_OPENBSD) || \
+    defined(HAVE_KINFO_PROC_FREEBSD) || \
+    defined(HAVE_KINFO_PROC_44BSD) || \
+    defined(HAVE__TTYNAME_DEV) || defined(HAVE_STRUCT_PSINFO_PR_TTYDEV) || \
+    defined(HAVE_PSTAT_GETPROC) || defined(__linux__)
+
+    /* Lookup tty name attached to stdin via libc. */
+    tty_libc = ttyname(STDIN_FILENO);
+#endif
+
+    /* Compare libc and kernel ttys. */
+    if (tty_libc != NULL && tty_sudo != NULL) {
+	if (strcmp(tty_libc, tty_sudo) == 0)
+	    ret = 0;
+    } else if (tty_libc == NULL && tty_sudo == NULL) {
+	ret = 0;
+    }
+
+    if (ret == 0) {
+	printf("%s: OK (%s)\n", getprogname(), tty_sudo ? tty_sudo : "none");
+    } else if (tty_libc == NULL) {
+	printf("%s: SKIP (%s)\n", getprogname(), tty_sudo ? tty_sudo : "none");
+	ret = 0;
+    } else {
+	printf("%s: FAIL %s (sudo) vs. %s (libc)\n", getprogname(),
+	    tty_sudo ? tty_sudo : "none", tty_libc ? tty_libc : "none");
+    }
+
+    return ret;
+}