Some platforms may have getaddrinfo() but not sockaddr_storage.

[rsync.git] / tls.c

diff --git a/tls.c b/tls.c
index a4fda6b8fa9876ecc333cf1b907eccb66f8bcc0d..d02a7a4c87b1fe6188716dc4d616d0b3b9ff3536 100644 (file)
--- a/tls.c
+++ b/tls.c
@@ -1,6 +1,6 @@
 /* -*- c-file-style: "linux" -*-
  *
- * Copyright (C) 2001 by Martin Pool
+ * Copyright (C) 2001 by Martin Pool <mbp@samba.org>
  * 
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License version
@@ -27,18 +27,16 @@
  * our purposes they're the same -- for example, the BSD braindamage
  * about setting the mode on symlinks based on your current umask.
  *
- * There are some restrictions compared to regular ls: all the names
- * on the command line must be directories rather than files; you
- * can't give wildcards either.
+ * All the filenames must be given on the command line -- tls does not
+ * even read directories, let alone recurse.  The typical usage is
+ * "find|sort|xargs tls".
  *
- * At the moment we don't sort the output, but all the files have full
- * names, so you can run it through sort(1).
+ * The format is not exactly the same as any particular Unix ls(1).
  *
- * We need to recurse downwards and show all the interesting
- * information and no more.
- *
- * \todo Use readdir64 if available?
- */
+ * A key requirement for this program is that the output be "very
+ * reproducible."  So we mask away information that can accidentally
+ * change.
+ **/
 
 
 
@@ -62,23 +60,61 @@ static void failed (char const *what,
 
 
 
-static void list_dir (char const *dn)
+static void list_file (const char *fname)
 {
-       DIR *d;
-       struct dirent *de;
-
-       if (!(d = opendir (dn)))
-               failed ("opendir", dn);
+       struct stat buf;
+       char permbuf[PERMSTRING_SIZE];
+       struct tm *mt;
+       char datebuf[50];
+       char linkbuf[4096];
+
+       if (do_lstat(fname, &buf) == -1)
+               failed ("stat", fname);
+
+       /* The size of anything but a regular file is probably not
+        * worth thinking about. */
+       if (!S_ISREG(buf.st_mode))
+               buf.st_size = 0;
+
+       /* On some BSD platforms the mode bits of a symlink are
+        * undefined.  Also it tends not to be possible to reset a
+        * symlink's mtime, so we have to ignore it too. */
+       if (S_ISLNK(buf.st_mode)) {
+               buf.st_mode &= ~0777;
+               buf.st_mtime = (time_t)0;
+               buf.st_uid = buf.st_gid = 0;
+               strcpy(linkbuf, " -> ");
+               /* const-cast required for silly UNICOS headers */
+               readlink((char *) fname, linkbuf+4, sizeof(linkbuf) - 4);
+       } else {
+               linkbuf[0] = 0;
+       }
 
-       while ((de = readdir (d))) {
-               char *dname = d_name (de);
-               if (!strcmp (dname, ".")  ||  !strcmp (dname, ".."))
-                       continue;
-               printf ("%s\n", dname);
+       permstring(permbuf, buf.st_mode);
+
+       if (buf.st_mtime) {
+               mt = gmtime(&buf.st_mtime);
+               
+               sprintf(datebuf, "%04d-%02d-%02d %02d:%02d:%02d",
+                       mt->tm_year + 1900,
+                       mt->tm_mon + 1,
+                       mt->tm_mday,
+                       mt->tm_hour,
+                       mt->tm_min,
+                       mt->tm_sec);
+       } else {
+               strcpy(datebuf, "                   ");
        }
        
-       if (closedir (d) == -1)
-               failed ("closedir", dn);
+       /* TODO: Perhaps escape special characters in fname? */
+       
+       
+       /* NB: need to pass size as a double because it might be be
+        * too large for a long. */
+       printf("%s %12.0f %6d.%-6d %s %s%s\n",
+              permbuf, (double) buf.st_size,
+              buf.st_uid, buf.st_gid,
+              datebuf, fname, linkbuf);
 }
 
 
@@ -91,7 +127,7 @@ int main (int argc, char *argv[])
        }
 
        for (argv++; *argv; argv++) {
-               list_dir (*argv);
+               list_file (*argv);
        }
 
        return 0;