+/* vi: set sw=4 ts=4: */
/*
* Mini cp implementation for busybox
*
- *
- * Copyright (C) 1999 by Lineo, inc.
- * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
+ * 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
*
*/
-#include "internal.h"
-#include <stdio.h>
-#include <time.h>
+/* BB_AUDIT SUSv3 defects - unsupported options -H, -L, and -P. */
+/* BB_AUDIT GNU defects - only extension options supported are -a and -d. */
+/* http://www.opengroup.org/onlinepubs/007904975/utilities/cp.html */
+
+/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
+ *
+ * Size reduction.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
#include <utime.h>
+#include <errno.h>
#include <dirent.h>
+#include <stdlib.h>
+#include <assert.h>
+#include "busybox.h"
+#include "libcoreutils/coreutils.h"
-static const char cp_usage[] = "cp [OPTION]... SOURCE DEST\n"
- " or: cp [OPTION]... SOURCE... DIRECTORY\n\n"
- "Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.\n"
- "\n"
- "\t-a\tsame as -dpR\n"
- "\t-d\tpreserve links\n"
- "\t-p\tpreserve file attributes if possable\n"
- "\t-R\tcopy directories recursively\n";
+/* WARNING!! ORDER IS IMPORTANT!! */
+static const char cp_opts[] = "pdRfiar";
+extern int cp_main(int argc, char **argv)
+{
+ struct stat source_stat;
+ struct stat dest_stat;
+ const char *last;
+ const char *dest;
+ int s_flags;
+ int d_flags;
+ int flags;
+ int status = 0;
-static int recursiveFlag = FALSE;
-static int followLinks = FALSE;
-static int preserveFlag = FALSE;
-static const char *srcName;
-static const char *destName;
-static int destDirFlag = FALSE;
-static int destExistsFlag = FALSE;
-static int srcDirFlag = FALSE;
+ /* 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);
-static int fileAction(const char *fileName, struct stat* statbuf)
-{
- char newdestName[NAME_MAX];
+ flags = bb_getopt_ulflags(argc, argv, cp_opts);
- strcpy(newdestName, destName);
- if ( srcDirFlag == TRUE ) {
- if (recursiveFlag!=TRUE ) {
- fprintf(stderr, "cp: %s: omitting directory\n", srcName);
- return( TRUE);
+ if (flags & 32) {
+ flags |= (FILEUTILS_PRESERVE_STATUS | FILEUTILS_RECUR | FILEUTILS_DEREFERENCE);
}
- strcat(newdestName, strstr(fileName, srcName) + strlen(srcName));
- }
-
- if (destDirFlag==TRUE && srcDirFlag == FALSE) {
- if (newdestName[strlen(newdestName)-1] != '/' ) {
- strcat(newdestName, "/");
+ if (flags & 64) {
+ /* Make -r a synonym for -R,
+ * -r was marked as obsolete in SUSv3, but is included for compatability
+ */
+ flags |= FILEUTILS_RECUR;
}
- strcat(newdestName, srcName);
- }
-
- return (copyFile(fileName, newdestName, preserveFlag, followLinks));
-}
-
-extern int cp_main(int argc, char **argv)
-{
- struct stat statBuf;
- if (argc < 3) {
- usage (cp_usage);
- }
- argc--;
- argv++;
+ flags ^= FILEUTILS_DEREFERENCE; /* The sense of this flag was reversed. */
- /* Parse any options */
- while (**argv == '-') {
- while (*++(*argv))
- switch (**argv) {
- case 'a':
- followLinks = TRUE;
- preserveFlag = TRUE;
- recursiveFlag = TRUE;
- break;
- case 'd':
- followLinks = TRUE;
- break;
- case 'p':
- preserveFlag = TRUE;
- break;
- case 'R':
- recursiveFlag = TRUE;
- break;
- default:
- usage (cp_usage);
- }
- argc--;
- argv++;
- }
+ if (optind + 2 > argc) {
+ bb_show_usage();
+ }
+ last = argv[argc - 1];
+ argv += optind;
- destName = argv[argc - 1];
- if (stat(destName, &statBuf) >= 0) {
- destExistsFlag = TRUE;
- if (S_ISDIR(statBuf.st_mode))
- destDirFlag = TRUE;
- }
+ /* If there are only two arguments and... */
+ if (optind + 2 == argc) {
+ s_flags = cp_mv_stat2(*argv, &source_stat,
+ (flags & FILEUTILS_DEREFERENCE) ? stat : lstat);
+ if ((s_flags < 0) || ((d_flags = cp_mv_stat(last, &dest_stat)) < 0)) {
+ exit(EXIT_FAILURE);
+ }
+ /* ...if neither is a directory or... */
+ if ( !((s_flags | d_flags) & 2) ||
+ /* ...recursing, the 1st is a directory, and the 2nd doesn't exist... */
+ /* ((flags & FILEUTILS_RECUR) && (s_flags & 2) && !d_flags) */
+ /* Simplify the above since FILEUTILS_RECUR >> 1 == 2. */
+ ((((flags & FILEUTILS_RECUR) >> 1) & s_flags) && !d_flags)
+ ) {
+ /* ...do a simple copy. */
+ dest = last;
+ goto DO_COPY; /* Note: optind+2==argc implies argv[1]==last below. */
+ }
+ }
- if ((argc > 3) && destDirFlag==FALSE) {
- fprintf(stderr, "%s: not a directory\n", destName);
- exit (FALSE);
- }
+ do {
+ dest = concat_path_file(last, bb_get_last_path_component(*argv));
+ DO_COPY:
+ if (copy_file(*argv, dest, flags) < 0) {
+ status = 1;
+ }
+ if (*++argv == last) {
+ break;
+ }
+ free((void *) dest);
+ } while (1);
- while (argc-- > 1) {
- srcName = *(argv++);
- srcDirFlag = isDirectory(srcName);
- if (recursiveAction(srcName, recursiveFlag, followLinks, FALSE,
- fileAction, fileAction) == FALSE) {
- exit( FALSE);
- }
- }
- exit( TRUE);
+ exit(status);
}