X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=coreutils%2Fmv.c;h=02252c7ef114942c0d311f01081edacd1edf35c1;hb=5929edc1fac4340f99ed84e92bf3a2bedd4177c2;hp=e502250eca3b4379c4bb12a711113fe19509d968;hpb=c49960189a04b73e033016bd0f43fbb950f800e1;p=oweals%2Fbusybox.git

diff --git a/coreutils/mv.c b/coreutils/mv.c
index e502250ec..02252c7ef 100644
--- a/coreutils/mv.c
+++ b/coreutils/mv.c
@@ -1,9 +1,8 @@
+/* vi: set sw=4 ts=4: */
 /*
  * Mini mv 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
@@ -21,60 +20,124 @@
  *
  */
 
-#include "internal.h"
-#include <stdio.h>
-#include <time.h>
-#include <utime.h>
-#include <dirent.h>
-
+/* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
+ *
+ * Size reduction and improved error checking.
+ */
 
-static const char mv_usage[] = "mv SOURCE DEST\n"
-"   or: mv SOURCE... DIRECTORY\n"
-"Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.\n";
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <getopt.h> /* struct option */
+#include "busybox.h"
+#include "libcoreutils/coreutils.h"
 
+#if ENABLE_FEATURE_MV_LONG_OPTIONS
+static const struct option mv_long_options[] = {
+	{ "interactive", 0, NULL, 'i' },
+	{ "force", 0, NULL, 'f' },
+	{ 0, 0, 0, 0 }
+};
+#endif
 
-static const char *srcName;
-static const char *destName;
-static const char *skipName;
-static int dirFlag = FALSE;
+#define OPT_FILEUTILS_FORCE       1
+#define OPT_FILEUTILS_INTERACTIVE 2
 
+static const char fmt[] = "cannot overwrite %sdirectory with %sdirectory";
 
-extern int mv_main(int argc, char **argv)
+int mv_main(int argc, char **argv)
 {
-    char newdestName[NAME_MAX];
-
-    if (argc < 3) {
-	usage (mv_usage);
-    }
-    argc--;
-    argv++;
-
-    destName = argv[argc - 1];
-    dirFlag = isDirectory(destName);
-
-    if ((argc > 3) && dirFlag==FALSE) {
-	fprintf(stderr, "%s: not a directory\n", destName);
-	exit (FALSE);
-    }
-
-    while (argc-- > 1) {
-	srcName = *(argv++);
-	skipName = strrchr(srcName, '/');
-	if (skipName) 
-	    skipName++;
-	strcpy(newdestName, destName);
-	if (dirFlag==TRUE) {
-	    strcat(newdestName, "/");
-	    if ( skipName != NULL)
-		strcat(newdestName, strstr(srcName, skipName));
-	}
-	if (copyFile(srcName, newdestName, FALSE, FALSE)  == FALSE) {
-	    exit( FALSE);
+	struct stat dest_stat;
+	const char *last;
+	const char *dest;
+	unsigned long flags;
+	int dest_exists;
+	int status = 0;
+
+#if ENABLE_FEATURE_MV_LONG_OPTIONS
+	bb_applet_long_options = mv_long_options;
+#endif
+	bb_opt_complementally = "f-i:i-f";
+	flags = bb_getopt_ulflags(argc, argv, "fi");
+	if (optind + 2 > argc) {
+		bb_show_usage();
 	}
-	if (unlink (srcName) < 0) {
-	    perror (srcName);
-	    exit( FALSE);
+
+	last = argv[argc - 1];
+	argv += optind;
+
+	if (optind + 2 == argc) {
+		if ((dest_exists = cp_mv_stat(last, &dest_stat)) < 0) {
+			return 1;
+		}
+
+		if (!(dest_exists & 2)) {
+			dest = last;
+			goto DO_MOVE;
+		}
 	}
-    }
-    exit( TRUE);
+
+	do {
+		dest = concat_path_file(last, bb_get_last_path_component(*argv));
+
+		if ((dest_exists = cp_mv_stat(dest, &dest_stat)) < 0) {
+			goto RET_1;
+		}
+
+DO_MOVE:
+
+		if (dest_exists && !(flags & OPT_FILEUTILS_FORCE) &&
+			((access(dest, W_OK) < 0 && isatty(0)) ||
+			(flags & OPT_FILEUTILS_INTERACTIVE))) {
+			if (fprintf(stderr, "mv: overwrite `%s'? ", dest) < 0) {
+				goto RET_1;	/* Ouch! fprintf failed! */
+			}
+			if (!bb_ask_confirmation()) {
+				goto RET_0;
+			}
+		}
+		if (rename(*argv, dest) < 0) {
+			struct stat source_stat;
+			int source_exists;
+
+			if (errno != EXDEV ||
+				(source_exists = cp_mv_stat(*argv, &source_stat)) < 1) {
+				bb_perror_msg("unable to rename `%s'", *argv);
+			} else {
+				if (dest_exists) {
+					if (dest_exists == 3) {
+						if (source_exists != 3) {
+							bb_error_msg(fmt, "", "non-");
+							goto RET_1;
+						}
+					} else {
+						if (source_exists == 3) {
+							bb_error_msg(fmt, "non-", "");
+							goto RET_1;
+						}
+					}
+					if (unlink(dest) < 0) {
+						bb_perror_msg("cannot remove `%s'", dest);
+						goto RET_1;
+					}
+				}
+				if ((copy_file(*argv, dest,
+					FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS) >= 0) &&
+					(remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0)) {
+					goto RET_0;
+				}
+			}
+RET_1:
+			status = 1;
+		}
+RET_0:
+		if (dest != last) {
+			free((void *) dest);
+		}
+	} while (*++argv != last);
+
+	return (status);
 }