X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=coreutils%2Fcp.c;h=82d43adff625824fcc98ef535333797be8a840a9;hb=8b7a0d807a3ec8cfcbc4e4cb3067237b438bae14;hp=ce632016ead857a2a1b1852a2ca1d47dee488f41;hpb=d80e851dc05f978dded84b7ac9fcae7066e3ffe0;p=oweals%2Fbusybox.git

diff --git a/coreutils/cp.c b/coreutils/cp.c
index ce632016e..82d43adff 100644
--- a/coreutils/cp.c
+++ b/coreutils/cp.c
@@ -1,9 +1,9 @@
+/* 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
@@ -21,97 +21,94 @@
  *
  */
 
-#include "internal.h"
-#include <stdio.h>
-#include <time.h>
+#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>
 
-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";
-
-
-static int recursiveFlag = FALSE;
-static int followLinks = FALSE;
-static int preserveFlag = FALSE;
-static const char *srcName;
-static const char *destName;
-static const char *skipName;
-static int dirFlag = FALSE;
-
-
-static int fileAction(const char *fileName, struct stat* statbuf)
-{
-    char newdestName[NAME_MAX];
-    strcpy(newdestName, destName);
-    if (dirFlag==TRUE) {
-	strcat(newdestName, "/");
-	if ( skipName != NULL)
-	    strcat(newdestName, strstr(fileName, skipName));
-	else
-	    strcat(newdestName, srcName);
-    }
-    return (copyFile(fileName, newdestName, preserveFlag, followLinks));
-}
+#include "busybox.h"
 
 extern int cp_main(int argc, char **argv)
 {
+	int status = 0;
+	int opt;
+	int flags = 0;
+	int i;
 
-    if (argc < 3) {
-	usage (cp_usage);
-    }
-    argc--;
-    argv++;
-
-    /* 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++;
-    }
+	while ((opt = getopt(argc, argv, "adfipR")) != -1)
+		switch (opt) {
+		case 'a':
+			flags |= FILEUTILS_PRESERVE_STATUS | FILEUTILS_RECUR;
+			/* fallthrough */
+		case 'd':
+			flags |= FILEUTILS_PRESERVE_SYMLINKS;
+			break;
+		case 'f':
+			flags |= FILEUTILS_FORCE;
+			break;
+		case 'i':
+			flags |= FILEUTILS_INTERACTIVE;
+			break;
+		case 'p':
+			flags |= FILEUTILS_PRESERVE_STATUS;
+			break;
+		case 'R':
+			flags |= FILEUTILS_RECUR;
+			break;
+		default:
+			show_usage();
+		}
+	
+	if (optind + 2 > argc)
+		show_usage();
 
+	/* If there are only two arguments and...  */
+	if (optind + 2 == argc) {
+		struct stat source_stat;
+		struct stat dest_stat;
+		int source_exists = 1;
+		int dest_exists = 1;
 
-    destName = argv[argc - 1];
-    dirFlag = isDirectory(destName);
+		if (((flags & FILEUTILS_PRESERVE_SYMLINKS) &&
+				lstat(argv[optind], &source_stat) < 0) ||
+				(!(flags & FILEUTILS_PRESERVE_SYMLINKS) &&
+				 stat(argv[optind], &source_stat))) {
+			if (errno != ENOENT)
+				perror_msg_and_die("unable to stat `%s'", argv[optind]);
+			source_exists = 0;
+		}
 
-    if ((argc > 3) && dirFlag==FALSE) {
-	fprintf(stderr, "%s: not a directory\n", destName);
-	exit (FALSE);
-    }
+		if (stat(argv[optind + 1], &dest_stat) < 0) {
+			if (errno != ENOENT)
+				perror_msg_and_die("unable to stat `%s'", argv[optind + 1]);
+			dest_exists = 0;
+		}
+		
+		/* ...if neither is a directory or...  */
+		if (((!source_exists || !S_ISDIR(source_stat.st_mode)) &&
+				(!dest_exists || !S_ISDIR(dest_stat.st_mode))) ||
+				/* ...recursing, the first is a directory, and the
+				 * second doesn't exist, then... */
+				((flags & FILEUTILS_RECUR) && S_ISDIR(source_stat.st_mode) &&
+				 !dest_exists)) {
+			/* ...do a simple copy.  */
+			if (copy_file(argv[optind], argv[optind + 1], flags) < 0)
+				status = 1;
+			return status;
+		}
+	}
 
-    while (argc-- > 1) {
-	srcName = *(argv++);
-	skipName = strrchr(srcName, '/');
-	if (skipName) 
-	    skipName++;
-	if (recursiveAction(srcName, recursiveFlag, followLinks, FALSE,
-			       fileAction, fileAction) == FALSE) {
-	    exit( FALSE);
+	for (i = optind; i < argc - 1; i++) {
+		char *dest = concat_path_file(argv[argc - 1],
+				get_last_path_component(argv[i]));
+		if (copy_file(argv[i], dest, flags) < 0)
+			status = 1;
+		free(dest);
 	}
-    }
-    exit( TRUE);
+
+	return status;
 }