Fix cp /dev/null filename, and a few in-passing cleanups.

diff --git a/coreutils/cp.c b/coreutils/cp.c
index eaabee4..ac57254 100644 (file)
--- a/coreutils/cp.c
+++ b/coreutils/cp.c
@@ -4,20 +4,7 @@
  *
  * Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * Licensed under GPL v2 or later, see file LICENSE in this tarball for details.
  */
 
 /* BB_AUDIT SUSv3 defects - unsupported options -H, -L, and -P. */
@@ -41,9 +28,6 @@
 #include "busybox.h"
 #include "libcoreutils/coreutils.h"
 
-/* WARNING!! ORDER IS IMPORTANT!! */
-static const char cp_opts[] = "pdRfiarPHL";
-
 extern int cp_main(int argc, char **argv)
 {
        struct stat source_stat;
@@ -55,14 +39,7 @@ extern int cp_main(int argc, char **argv)
        int flags;
        int status = 0;
 
-       /* Since these are enums, #if tests will not work.  So use assert()s. */
-       assert(FILEUTILS_PRESERVE_STATUS == 1);
-       assert(FILEUTILS_DEREFERENCE == 2);
-       assert(FILEUTILS_RECUR == 4);
-       assert(FILEUTILS_FORCE == 8);
-       assert(FILEUTILS_INTERACTIVE == 16);
-
-       flags = bb_getopt_ulflags(argc, argv, cp_opts);
+       flags = bb_getopt_ulflags(argc, argv, "pdRfiarPHL");
 
        if (flags & 32) {
                flags |= (FILEUTILS_PRESERVE_STATUS | FILEUTILS_RECUR | FILEUTILS_DEREFERENCE);

diff --git a/libbb/copy_file.c b/libbb/copy_file.c
index cd6d380..991fa8f 100644 (file)
--- a/libbb/copy_file.c
+++ b/libbb/copy_file.c
@@ -4,19 +4,7 @@
  *
  * Copyright (C) 2001 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  *
  */
 
@@ -32,6 +20,13 @@
 
 #include "busybox.h"
 
+/* Compiler version-specific crap that should be in a header file somewhere. */
+
+#if !((__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1))
+#define lchown chown
+#endif
+
+
 int copy_file(const char *source, const char *dest, int flags)
 {
        struct stat source_stat;
@@ -100,7 +95,7 @@ int copy_file(const char *source, const char *dest, int flags)
                if ((dp = opendir(source)) == NULL) {
                        bb_perror_msg("unable to open directory `%s'", source);
                        status = -1;
-                       goto end;
+                       goto preserve_status;
                }
 
                while ((d = readdir(dp)) != NULL) {
@@ -123,7 +118,8 @@ int copy_file(const char *source, const char *dest, int flags)
                        bb_perror_msg("unable to change permissions of `%s'", dest);
                        status = -1;
                }
-       } else if (S_ISREG(source_stat.st_mode)) {
+       } else if (S_ISREG(source_stat.st_mode) || (flags & FILEUTILS_DEREFERENCE))
+       {
                int src_fd;
                int dst_fd;
 #ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
@@ -138,6 +134,7 @@ int copy_file(const char *source, const char *dest, int flags)
 
                        return 0;
                }
+               add_to_ino_dev_hashtable(&source_stat, dest);
 #endif
                src_fd = open(source, O_RDONLY);
                if (src_fd == -1) {
@@ -193,8 +190,7 @@ int copy_file(const char *source, const char *dest, int flags)
                        bb_perror_msg("unable to close `%s'", source);
                        status = -1;
                }
-                       }
-       else if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
+       } else if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
            S_ISSOCK(source_stat.st_mode) || S_ISFIFO(source_stat.st_mode) ||
            S_ISLNK(source_stat.st_mode)) {
 
@@ -208,65 +204,54 @@ int copy_file(const char *source, const char *dest, int flags)
                                return -1;
                        }
                }
-       } else {
-               bb_error_msg("internal error: unrecognized file type");
-               return -1;
-               }
-       if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
-           S_ISSOCK(source_stat.st_mode)) {
-               if (mknod(dest, source_stat.st_mode, source_stat.st_rdev) < 0) {
-                       bb_perror_msg("unable to create `%s'", dest);
-                       return -1;
-               }
-       } else if (S_ISFIFO(source_stat.st_mode)) {
-               if (mkfifo(dest, source_stat.st_mode) < 0) {
-                       bb_perror_msg("cannot create fifo `%s'", dest);
-                       return -1;
-               }
-       } else if (S_ISLNK(source_stat.st_mode)) {
-               char *lpath;
-
-               lpath = xreadlink(source);
-               if (symlink(lpath, dest) < 0) {
-                       bb_perror_msg("cannot create symlink `%s'", dest);
-                       return -1;
-               }
-               free(lpath);
+               if (S_ISFIFO(source_stat.st_mode)) {
+                       if (mkfifo(dest, source_stat.st_mode) < 0) {
+                               bb_perror_msg("cannot create fifo `%s'", dest);
+                               return -1;
+                       }
+               } else if (S_ISLNK(source_stat.st_mode)) {
+                       char *lpath;
 
-#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
-               if (flags & FILEUTILS_PRESERVE_STATUS)
-                       if (lchown(dest, source_stat.st_uid, source_stat.st_gid) < 0)
-                               bb_perror_msg("unable to preserve ownership of `%s'", dest);
-#endif
+                       lpath = xreadlink(source);
+                       if (symlink(lpath, dest) < 0) {
+                               bb_perror_msg("cannot create symlink `%s'", dest);
+                               return -1;
+                       }
+                       free(lpath);
 
-#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
-               add_to_ino_dev_hashtable(&source_stat, dest);
-#endif
+                       if (flags & FILEUTILS_PRESERVE_STATUS)
+                               if (lchown(dest, source_stat.st_uid, source_stat.st_gid) < 0)
+                                       bb_perror_msg("unable to preserve ownership of `%s'", dest);
 
-               return 0;
-       }
+                       return 0;
 
-#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
-       if (! S_ISDIR(source_stat.st_mode)) {
-               add_to_ino_dev_hashtable(&source_stat, dest);
+               } else {
+                       if (mknod(dest, source_stat.st_mode, source_stat.st_rdev) < 0) {
+                               bb_perror_msg("unable to create `%s'", dest);
+                               return -1;
+                       }
+               }
+       } else {
+               bb_error_msg("internal error: unrecognized file type");
+               return -1;
        }
-#endif
 
-end:
+preserve_status:
 
        if (flags & FILEUTILS_PRESERVE_STATUS) {
                struct utimbuf times;
+               char *msg="unable to preserve %s of `%s'";
 
                times.actime = source_stat.st_atime;
                times.modtime = source_stat.st_mtime;
                if (utime(dest, &times) < 0)
-                       bb_perror_msg("unable to preserve times of `%s'", dest);
+                       bb_perror_msg(msg, "times", dest);
                if (chown(dest, source_stat.st_uid, source_stat.st_gid) < 0) {
                        source_stat.st_mode &= ~(S_ISUID | S_ISGID);
-                       bb_perror_msg("unable to preserve ownership of `%s'", dest);
+                       bb_perror_msg(msg, "ownership", dest);
                }
                if (chmod(dest, source_stat.st_mode) < 0)
-                       bb_perror_msg("unable to preserve permissions of `%s'", dest);
+                       bb_perror_msg(msg, "permissions", dest);
        }
 
        return status;