kopensolaris ttyname

1 files changed, 141 insertions, 3 deletions

diff --git a/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/ttyname.c b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/ttyname.c
index 9e7fe9a87d..916355957d 100644
--- a/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/ttyname.c
+++ b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/ttyname.c
@@ -16,9 +16,147 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#define __TTYNAME_NO_CHECKS
-#define __ASSUME_PROC_SELF_FD_NOT_SYMLINK
-#include <sysdeps/unix/sysv/linux/ttyname.c>
+#include <errno.h>
+#include <limits.h>
+#include <stddef.h>
+#include <dirent.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <termios.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <_itoa.h>
+#include <kernel-features.h>
+
+static char *getttyname (const char *dev, dev_t mydev,
+			 ino64_t myino, int save, int *dostat)
+     internal_function;
+
+
+libc_freeres_ptr (static char *getttyname_name);
+
+static char *
+internal_function attribute_compat_text_section
+getttyname (const char *dev, dev_t mydev, ino64_t myino, int save, int *dostat)
+{
+  static size_t namelen;
+  struct stat64 st;
+  DIR *dirstream;
+  struct dirent64 *d;
+  size_t devlen = strlen (dev) + 1;
+
+  dirstream = __opendir (dev);
+  if (dirstream == NULL)
+    {
+      *dostat = -1;
+      return NULL;
+    }
+
+  while ((d = __readdir64 (dirstream)) != NULL)
+    if ((d->d_fileno == myino || *dostat)
+	&& strcmp (d->d_name, "stdin")
+	&& strcmp (d->d_name, "stdout")
+	&& strcmp (d->d_name, "stderr"))
+      {
+	size_t dlen = _D_ALLOC_NAMLEN (d);
+	if (devlen + dlen > namelen)
+	  {
+	    free (getttyname_name);
+	    namelen = 2 * (devlen + dlen); /* Big enough.  */
+	    getttyname_name = malloc (namelen);
+	    if (! getttyname_name)
+	      {
+		*dostat = -1;
+		/* Perhaps it helps to free the directory stream buffer.  */
+		(void) __closedir (dirstream);
+		return NULL;
+	      }
+	    *((char *) __mempcpy (getttyname_name, dev, devlen - 1)) = '/';
+	  }
+	memcpy (&getttyname_name[devlen], d->d_name, dlen);
+	if (__xstat64 (_STAT_VER, getttyname_name, &st) == 0
+#ifdef _STATBUF_ST_RDEV
+	    && S_ISCHR (st.st_mode) && st.st_rdev == mydev
+#else
+	    && d->d_fileno == myino && st.st_dev == mydev
+#endif
+	   )
+	  {
+	    (void) __closedir (dirstream);
+	    __set_errno (save);
+	    return getttyname_name;
+	  }
+      }
+
+  (void) __closedir (dirstream);
+  __set_errno (save);
+  return NULL;
+}
+
+
+#ifndef __ASSUME_PROC_SELF_FD_NOT_SYMLINK
+/* Static buffer in `ttyname'.  */
+libc_freeres_ptr (static char *ttyname_buf);
+#endif
+
+
+/* Return the pathname of the terminal FD is open on, or NULL on errors.
+   The returned storage is good only until the next call to this function.  */
+char *
+ttyname (int fd)
+{
+  struct stat64 st, st1;
+  int dostat = 0;
+  char *name;
+  int save = errno;
+  struct termios term;
+
+  /* isatty check, tcgetattr is used because it sets the correct
+     errno (EBADF resp. ENOTTY) on error.  */
+  if (__builtin_expect (__tcgetattr (fd, &term) < 0, 0))
+    return NULL;
+
+  if (__fxstat64 (_STAT_VER, fd, &st) < 0)
+    return NULL;
+
+  if (__xstat64 (_STAT_VER, "/dev/pts", &st1) == 0 && S_ISDIR (st1.st_mode))
+    {
+#ifdef _STATBUF_ST_RDEV
+      name = getttyname ("/dev/pts", st.st_rdev, st.st_ino, save, &dostat);
+#else
+      name = getttyname ("/dev/pts", st.st_dev, st.st_ino, save, &dostat);
+#endif
+    }
+  else
+    {
+      __set_errno (save);
+      name = NULL;
+    }
+
+  if (!name && dostat != -1)
+    {
+#ifdef _STATBUF_ST_RDEV
+      name = getttyname ("/dev", st.st_rdev, st.st_ino, save, &dostat);
+#else
+      name = getttyname ("/dev", st.st_dev, st.st_ino, save, &dostat);
+#endif
+    }
+
+  if (!name && dostat != -1)
+    {
+      dostat = 1;
+#ifdef _STATBUF_ST_RDEV
+      name = getttyname ("/dev", st.st_rdev, st.st_ino, save, &dostat);
+#else
+      name = getttyname ("/dev", st.st_dev, st.st_ino, save, &dostat);
+#endif
+    }
+
+  return name;
+}
+
 
 char *
 _ttyname_dev (dev_t rdev, char *buffer, size_t buflen)