}
#undef FUNC_NAME
+#ifdef HAVE_LSTAT
+SCM_DEFINE (scm_lstat, "lstat", 1, 0, 0,
+ (SCM str),
+ "Similar to @code{stat}, but does not follow symbolic links, i.e.,\n"
+ "it will return information about a symbolic link itself, not the\n"
+ "file it points to. @var{path} must be a string.")
+#define FUNC_NAME s_scm_lstat
+{
+ int rv;
+ struct stat_or_stat64 stat_temp;
+
+ STRING_SYSCALL (str, c_str, rv = lstat_or_lstat64 (c_str, &stat_temp));
+ if (rv != 0)
+ {
+ int en = errno;
+
+ SCM_SYSERROR_MSG ("~A: ~S",
+ scm_list_2 (scm_strerror (scm_from_int (en)), str),
+ en);
+ }
+ return scm_stat2scm (&stat_temp);
+}
+#undef FUNC_NAME
+#endif /* HAVE_LSTAT */
+
\f
#ifdef HAVE_POSIX
#endif /* HAVE_LINK */
\f
-
-/* {Examining Directories}
- */
-
-scm_t_bits scm_tc16_dir;
-
-
-SCM_DEFINE (scm_directory_stream_p, "directory-stream?", 1, 0, 0,
- (SCM obj),
- "Return a boolean indicating whether @var{object} is a directory\n"
- "stream as returned by @code{opendir}.")
-#define FUNC_NAME s_scm_directory_stream_p
-{
- return scm_from_bool (SCM_DIRP (obj));
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_opendir, "opendir", 1, 0, 0,
- (SCM dirname),
- "Open the directory specified by @var{path} and return a directory\n"
- "stream.")
-#define FUNC_NAME s_scm_opendir
-{
- DIR *ds;
- STRING_SYSCALL (dirname, c_dirname, ds = opendir (c_dirname));
- if (ds == NULL)
- SCM_SYSERROR;
- SCM_RETURN_NEWSMOB (scm_tc16_dir | (SCM_DIR_FLAG_OPEN<<16), ds);
-}
-#undef FUNC_NAME
-
-
-/* FIXME: The glibc manual has a portability note that readdir_r may not
- null-terminate its return string. The circumstances outlined for this
- are not clear, nor is it clear what should be done about it. Lets use
- NAMLEN and worry about what else should be done if/when someone can
- figure it out. */
-
-SCM_DEFINE (scm_readdir, "readdir", 1, 0, 0,
- (SCM port),
- "Return (as a string) the next directory entry from the directory stream\n"
- "@var{stream}. If there is no remaining entry to be read then the\n"
- "end of file object is returned.")
-#define FUNC_NAME s_scm_readdir
-{
- struct dirent_or_dirent64 *rdent;
-
- SCM_VALIDATE_DIR (1, port);
- if (!SCM_DIR_OPEN_P (port))
- SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port));
-
-#if HAVE_READDIR_R
- /* As noted in the glibc manual, on various systems (such as Solaris) the
- d_name[] field is only 1 char and you're expected to size the dirent
- buffer for readdir_r based on NAME_MAX. The SCM_MAX expressions below
- effectively give either sizeof(d_name) or NAME_MAX+1, whichever is
- bigger.
-
- On solaris 10 there's no NAME_MAX constant, it's necessary to use
- pathconf(). We prefer NAME_MAX though, since it should be a constant
- and will therefore save a system call. We also prefer it since dirfd()
- is not available everywhere.
-
- An alternative to dirfd() would be to open() the directory and then use
- fdopendir(), if the latter is available. That'd let us hold the fd
- somewhere in the smob, or just the dirent size calculated once. */
- {
- struct dirent_or_dirent64 de; /* just for sizeof */
- DIR *ds = (DIR *) SCM_SMOB_DATA_1 (port);
-#ifdef NAME_MAX
- char buf [SCM_MAX (sizeof (de),
- sizeof (de) - sizeof (de.d_name) + NAME_MAX + 1)];
-#else
- char *buf;
- long name_max = fpathconf (dirfd (ds), _PC_NAME_MAX);
- if (name_max == -1)
- SCM_SYSERROR;
- buf = alloca (SCM_MAX (sizeof (de),
- sizeof (de) - sizeof (de.d_name) + name_max + 1));
-#endif
-
- errno = 0;
- SCM_SYSCALL (readdir_r_or_readdir64_r (ds, (struct dirent_or_dirent64 *) buf, &rdent));
- if (errno != 0)
- SCM_SYSERROR;
- if (! rdent)
- return SCM_EOF_VAL;
-
- return (rdent ? scm_from_locale_stringn (rdent->d_name, NAMLEN (rdent))
- : SCM_EOF_VAL);
- }
-#else
- {
- SCM ret;
- scm_dynwind_begin (0);
- scm_i_dynwind_pthread_mutex_lock (&scm_i_misc_mutex);
-
- errno = 0;
- SCM_SYSCALL (rdent = readdir_or_readdir64 ((DIR *) SCM_SMOB_DATA_1 (port)));
- if (errno != 0)
- SCM_SYSERROR;
-
- ret = (rdent ? scm_from_locale_stringn (rdent->d_name, NAMLEN (rdent))
- : SCM_EOF_VAL);
-
- scm_dynwind_end ();
- return ret;
- }
-#endif
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_rewinddir, "rewinddir", 1, 0, 0,
- (SCM port),
- "Reset the directory port @var{stream} so that the next call to\n"
- "@code{readdir} will return the first directory entry.")
-#define FUNC_NAME s_scm_rewinddir
-{
- SCM_VALIDATE_DIR (1, port);
- if (!SCM_DIR_OPEN_P (port))
- SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port));
-
- rewinddir ((DIR *) SCM_SMOB_DATA_1 (port));
-
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_closedir, "closedir", 1, 0, 0,
- (SCM port),
- "Close the directory stream @var{stream}.\n"
- "The return value is unspecified.")
-#define FUNC_NAME s_scm_closedir
-{
- SCM_VALIDATE_DIR (1, port);
-
- if (SCM_DIR_OPEN_P (port))
- {
- int sts;
-
- SCM_SYSCALL (sts = closedir ((DIR *) SCM_SMOB_DATA_1 (port)));
- if (sts != 0)
- SCM_SYSERROR;
-
- SCM_SET_SMOB_DATA_0 (port, scm_tc16_dir);
- }
-
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-static int
-scm_dir_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED)
-{
- scm_puts ("#<", port);
- if (!SCM_DIR_OPEN_P (exp))
- scm_puts ("closed: ", port);
- scm_puts ("directory stream ", port);
- scm_uintprint (SCM_SMOB_DATA_1 (exp), 16, port);
- scm_putc ('>', port);
- return 1;
-}
-
-
-static size_t
-scm_dir_free (SCM p)
-{
- if (SCM_DIR_OPEN_P (p))
- closedir ((DIR *) SCM_SMOB_DATA_1 (p));
- return 0;
-}
-
-\f
/* {Navigating Directories}
*/
#undef FUNC_NAME
#endif /* HAVE_READLINK */
-#ifdef HAVE_LSTAT
-SCM_DEFINE (scm_lstat, "lstat", 1, 0, 0,
- (SCM str),
- "Similar to @code{stat}, but does not follow symbolic links, i.e.,\n"
- "it will return information about a symbolic link itself, not the\n"
- "file it points to. @var{path} must be a string.")
-#define FUNC_NAME s_scm_lstat
-{
- int rv;
- struct stat_or_stat64 stat_temp;
-
- STRING_SYSCALL (str, c_str, rv = lstat_or_lstat64 (c_str, &stat_temp));
- if (rv != 0)
- {
- int en = errno;
-
- SCM_SYSERROR_MSG ("~A: ~S",
- scm_list_2 (scm_strerror (scm_from_int (en)), str),
- en);
- }
- return scm_stat2scm (&stat_temp);
-}
-#undef FUNC_NAME
-#endif /* HAVE_LSTAT */
-
SCM_DEFINE (scm_copy_file, "copy-file", 2, 0, 0,
(SCM oldfile, SCM newfile),
"Copy the file specified by @var{path-from} to @var{path-to}.\n"
return SCM_BOOL_F;
}
+\f
+/* Examining directories. These procedures are used by `check-guile'
+ and thus compiled unconditionally. */
+
+scm_t_bits scm_tc16_dir;
+
+
+SCM_DEFINE (scm_directory_stream_p, "directory-stream?", 1, 0, 0,
+ (SCM obj),
+ "Return a boolean indicating whether @var{object} is a directory\n"
+ "stream as returned by @code{opendir}.")
+#define FUNC_NAME s_scm_directory_stream_p
+{
+ return scm_from_bool (SCM_DIRP (obj));
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_opendir, "opendir", 1, 0, 0,
+ (SCM dirname),
+ "Open the directory specified by @var{path} and return a directory\n"
+ "stream.")
+#define FUNC_NAME s_scm_opendir
+{
+ DIR *ds;
+ STRING_SYSCALL (dirname, c_dirname, ds = opendir (c_dirname));
+ if (ds == NULL)
+ SCM_SYSERROR;
+ SCM_RETURN_NEWSMOB (scm_tc16_dir | (SCM_DIR_FLAG_OPEN<<16), ds);
+}
+#undef FUNC_NAME
+
+
+/* FIXME: The glibc manual has a portability note that readdir_r may not
+ null-terminate its return string. The circumstances outlined for this
+ are not clear, nor is it clear what should be done about it. Lets use
+ NAMLEN and worry about what else should be done if/when someone can
+ figure it out. */
+
+SCM_DEFINE (scm_readdir, "readdir", 1, 0, 0,
+ (SCM port),
+ "Return (as a string) the next directory entry from the directory stream\n"
+ "@var{stream}. If there is no remaining entry to be read then the\n"
+ "end of file object is returned.")
+#define FUNC_NAME s_scm_readdir
+{
+ struct dirent_or_dirent64 *rdent;
+
+ SCM_VALIDATE_DIR (1, port);
+ if (!SCM_DIR_OPEN_P (port))
+ SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port));
+
+#if HAVE_READDIR_R
+ /* As noted in the glibc manual, on various systems (such as Solaris) the
+ d_name[] field is only 1 char and you're expected to size the dirent
+ buffer for readdir_r based on NAME_MAX. The SCM_MAX expressions below
+ effectively give either sizeof(d_name) or NAME_MAX+1, whichever is
+ bigger.
+
+ On solaris 10 there's no NAME_MAX constant, it's necessary to use
+ pathconf(). We prefer NAME_MAX though, since it should be a constant
+ and will therefore save a system call. We also prefer it since dirfd()
+ is not available everywhere.
+
+ An alternative to dirfd() would be to open() the directory and then use
+ fdopendir(), if the latter is available. That'd let us hold the fd
+ somewhere in the smob, or just the dirent size calculated once. */
+ {
+ struct dirent_or_dirent64 de; /* just for sizeof */
+ DIR *ds = (DIR *) SCM_SMOB_DATA_1 (port);
+#ifdef NAME_MAX
+ char buf [SCM_MAX (sizeof (de),
+ sizeof (de) - sizeof (de.d_name) + NAME_MAX + 1)];
+#else
+ char *buf;
+ long name_max = fpathconf (dirfd (ds), _PC_NAME_MAX);
+ if (name_max == -1)
+ SCM_SYSERROR;
+ buf = alloca (SCM_MAX (sizeof (de),
+ sizeof (de) - sizeof (de.d_name) + name_max + 1));
+#endif
+
+ errno = 0;
+ SCM_SYSCALL (readdir_r_or_readdir64_r (ds, (struct dirent_or_dirent64 *) buf, &rdent));
+ if (errno != 0)
+ SCM_SYSERROR;
+ if (! rdent)
+ return SCM_EOF_VAL;
+
+ return (rdent ? scm_from_locale_stringn (rdent->d_name, NAMLEN (rdent))
+ : SCM_EOF_VAL);
+ }
+#else
+ {
+ SCM ret;
+ scm_dynwind_begin (0);
+ scm_i_dynwind_pthread_mutex_lock (&scm_i_misc_mutex);
+
+ errno = 0;
+ SCM_SYSCALL (rdent = readdir_or_readdir64 ((DIR *) SCM_SMOB_DATA_1 (port)));
+ if (errno != 0)
+ SCM_SYSERROR;
+
+ ret = (rdent ? scm_from_locale_stringn (rdent->d_name, NAMLEN (rdent))
+ : SCM_EOF_VAL);
+
+ scm_dynwind_end ();
+ return ret;
+ }
+#endif
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_rewinddir, "rewinddir", 1, 0, 0,
+ (SCM port),
+ "Reset the directory port @var{stream} so that the next call to\n"
+ "@code{readdir} will return the first directory entry.")
+#define FUNC_NAME s_scm_rewinddir
+{
+ SCM_VALIDATE_DIR (1, port);
+ if (!SCM_DIR_OPEN_P (port))
+ SCM_MISC_ERROR ("Directory ~S is not open.", scm_list_1 (port));
+
+ rewinddir ((DIR *) SCM_SMOB_DATA_1 (port));
+
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_closedir, "closedir", 1, 0, 0,
+ (SCM port),
+ "Close the directory stream @var{stream}.\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_closedir
+{
+ SCM_VALIDATE_DIR (1, port);
+
+ if (SCM_DIR_OPEN_P (port))
+ {
+ int sts;
+
+ SCM_SYSCALL (sts = closedir ((DIR *) SCM_SMOB_DATA_1 (port)));
+ if (sts != 0)
+ SCM_SYSERROR;
+
+ SCM_SET_SMOB_DATA_0 (port, scm_tc16_dir);
+ }
+
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+
+static int
+scm_dir_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED)
+{
+ scm_puts ("#<", port);
+ if (!SCM_DIR_OPEN_P (exp))
+ scm_puts ("closed: ", port);
+ scm_puts ("directory stream ", port);
+ scm_uintprint (SCM_SMOB_DATA_1 (exp), 16, port);
+ scm_putc ('>', port);
+ return 1;
+}
+
+
+static size_t
+scm_dir_free (SCM p)
+{
+ if (SCM_DIR_OPEN_P (p))
+ closedir ((DIR *) SCM_SMOB_DATA_1 (p));
+ return 0;
+}
\f
HCoop / bpt / guile.git / commitdiff