X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/f22ee865172a42b7c4b291472b6fddb484c8db66..0f78b81511be65d8fe21af1e6ac674f9e80ac29d:/tls.c diff --git a/tls.c b/tls.c index a4fda6b8..2f5b6b44 100644 --- a/tls.c +++ b/tls.c @@ -1,46 +1,37 @@ -/* -*- c-file-style: "linux" -*- +/* + * Trivial ls for comparing two directories after running an rsync. + * + * Copyright (C) 2001, 2002 Martin Pool + * Copyright (C) 2003, 2004, 2005 Wayne Davison * - * Copyright (C) 2001 by Martin Pool - * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version * 2 as published by the Free Software Foundation. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * + * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -/** - * \section tls - * - * tls -- Trivial recursive ls, for comparing two directories after - * running an rsync. - * - * The problem with using the system's own ls is that some features +/* The problem with using the system's own ls is that some features * have little quirks that make directories look different when for * 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. - * - * At the moment we don't sort the output, but all the files have full - * names, so you can run it through sort(1). + * 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". * - * We need to recurse downwards and show all the interesting - * information and no more. + * The format is not exactly the same as any particular Unix ls(1). * - * \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. */ #include "rsync.h" @@ -50,48 +41,92 @@ int dry_run = 0; int read_only = 1; int list_only = 0; +int preserve_perms = 0; - -static void failed (char const *what, - char const *where) +static void failed(char const *what, char const *where) { - fprintf (stderr, PROGRAM ": %s %s: %s\n", - what, where, strerror (errno)); - exit (1); + fprintf(stderr, PROGRAM ": %s %s: %s\n", + what, where, strerror(errno)); + exit(1); } - - -static void list_dir (char const *dn) +static void list_file(const char *fname) { - DIR *d; - struct dirent *de; + STRUCT_STAT buf; + char permbuf[PERMSTRING_SIZE]; + struct tm *mt; + char datebuf[50]; + char linkbuf[4096]; + + if (do_lstat(fname, &buf) < 0) + 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)) { + int len; + 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 */ + len = readlink((char *) fname, linkbuf+4, sizeof(linkbuf) - 4); + if (len == -1) + failed("readlink", fname); + else + /* it's not nul-terminated */ + linkbuf[4+len] = 0; + } else { + linkbuf[0] = 0; + } + + permstring(permbuf, buf.st_mode); - if (!(d = opendir (dn))) - failed ("opendir", dn); + if (buf.st_mtime) { + mt = gmtime(&buf.st_mtime); - while ((de = readdir (d))) { - char *dname = d_name (de); - if (!strcmp (dname, ".") || !strcmp (dname, "..")) - continue; - printf ("%s\n", dname); + sprintf(datebuf, "%04d-%02d-%02d %02d:%02d:%02d", + (int)mt->tm_year + 1900, + (int)mt->tm_mon + 1, + (int)mt->tm_mday, + (int)mt->tm_hour, + (int)mt->tm_min, + (int)mt->tm_sec); + } else { + strcpy(datebuf, " "); } - - if (closedir (d) == -1) - failed ("closedir", dn); -} + /* TODO: Perhaps escape special characters in fname? */ + + printf("%s ", permbuf); + if (S_ISCHR(buf.st_mode) || S_ISBLK(buf.st_mode)) { + printf("%5ld,%6ld", + (long)major(buf.st_rdev), + (long)minor(buf.st_rdev)); + } else /* NB: use double for size since it might not fit in a long. */ + printf("%12.0f", (double)buf.st_size); + printf(" %6ld.%-6ld %6ld %s %s%s\n", + (long)buf.st_uid, (long)buf.st_gid, (long)buf.st_nlink, + datebuf, fname, linkbuf); +} -int main (int argc, char *argv[]) +int +main(int argc, char *argv[]) { if (argc < 2) { - fprintf (stderr, "usage: " PROGRAM " DIR ...\n" - "Trivial file listing program for portably checking rsync\n"); + fprintf(stderr, "usage: " PROGRAM " DIR ...\n" + "Trivial file listing program for portably checking rsync\n"); return 1; } for (argv++; *argv; argv++) { - list_dir (*argv); + list_file(*argv); } return 0;