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|
/* vi: set sw=4 ts=4: */
/*
* Mini `cp' and `mv' implementation for BusyBox.
*
*
* Copyright (C) 1999 by Lineo, inc.
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
*
* Copyright (C) 2000 by BitterSweet Enterprises, LLC. (GPL)
* Extensively modified and rewritten by Karl M. Hegbloom <karlheg@debian.org>
*
* 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
*
*/
#include "internal.h"
#define BB_DECLARE_EXTERN
#define bb_need_name_too_long
#define bb_need_omitting_directory
#define bb_need_not_a_directory
#include "messages.c"
#include <stdio.h>
#include <time.h>
#include <utime.h>
#include <dirent.h>
#include <sys/param.h>
#define is_cp 0
#define is_mv 1
static const char *dz; /* dollar zero, .bss */
static int dz_i; /* index, .bss */
static const char *cp_mv_usage[] = /* .rodata */
{
"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 possible\n"
"\t-R\tcopy directories recursively\n",
"mv SOURCE DEST\n"
" or: mv SOURCE... DIRECTORY\n\n"
"Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.\n"
"Warning!! This is not GNU `mv'. It does not preserve hard links.\n"
};
extern int cp_mv_main(int argc, char **argv)
{
__label__ name_too_long__exit;
__label__ exit_false;
int recursiveFlag;
int followLinks;
int preserveFlag;
const char *baseSrcName;
int srcDirFlag;
struct stat srcStatBuf;
char baseDestName[PATH_MAX + 1];
size_t baseDestLen;
int destDirFlag;
struct stat destStatBuf;
void fill_baseDest_buf(char *_buf, size_t * _buflen) {
const char *srcBasename;
if ((srcBasename = strrchr(baseSrcName, '/')) == NULL) {
srcBasename = baseSrcName;
if (_buf[*_buflen - 1] != '/') {
if (++(*_buflen) > PATH_MAX)
goto name_too_long__exit;
strcat(_buf, "/");
}
}
if (*_buflen + strlen(srcBasename) > PATH_MAX)
goto name_too_long__exit;
strcat(_buf, srcBasename);
return;
}
int fileAction(const char *fileName, struct stat *statbuf) {
char destName[PATH_MAX + 1];
size_t destLen;
const char *srcBasename;
strcpy(destName, baseDestName);
destLen = strlen(destName);
if (srcDirFlag == TRUE) {
if (recursiveFlag == FALSE) {
fprintf(stderr, omitting_directory, "cp", baseSrcName);
return TRUE;
}
srcBasename = (strstr(fileName, baseSrcName)
+ strlen(baseSrcName));
if (destLen + strlen(srcBasename) > PATH_MAX) {
fprintf(stderr, name_too_long, "cp");
return FALSE;
}
strcat(destName, srcBasename);
} else if (destDirFlag == TRUE) {
fill_baseDest_buf(&destName[0], &destLen);
} else {
srcBasename = baseSrcName;
}
return copyFile(fileName, destName, preserveFlag, followLinks);
}
int rmfileAction(const char *fileName, struct stat *statbuf) {
if (unlink(fileName) < 0) {
perror(fileName);
return FALSE;
}
return TRUE;
}
int rmdirAction(const char *fileName, struct stat *statbuf) {
if (rmdir(fileName) < 0) {
perror(fileName);
return FALSE;
}
return TRUE;
}
if ((dz = strrchr(*argv, '/')) == NULL)
dz = *argv;
else
dz++;
if (*dz == 'c' && *(dz + 1) == 'p')
dz_i = is_cp;
else
dz_i = is_mv;
if (argc < 3)
usage(cp_mv_usage[dz_i]);
argc--;
argv++;
if (dz_i == is_cp) {
recursiveFlag = preserveFlag = FALSE;
followLinks = TRUE;
while (**argv == '-') {
while (*++(*argv)) {
switch (**argv) {
case 'a':
followLinks = FALSE;
preserveFlag = TRUE;
recursiveFlag = TRUE;
break;
case 'd':
followLinks = FALSE;
break;
case 'p':
preserveFlag = TRUE;
break;
case 'R':
recursiveFlag = TRUE;
break;
default:
usage(cp_mv_usage[is_cp]);
}
}
argc--;
argv++;
}
} else { /* (dz_i == is_mv) */
recursiveFlag = preserveFlag = TRUE;
followLinks = FALSE;
}
if (strlen(argv[argc - 1]) > PATH_MAX) {
fprintf(stderr, name_too_long, "cp");
goto exit_false;
}
strcpy(baseDestName, argv[argc - 1]);
baseDestLen = strlen(baseDestName);
if (baseDestLen == 0)
goto exit_false;
destDirFlag = isDirectory(baseDestName, TRUE, &destStatBuf);
if ((argc > 3) && destDirFlag == FALSE) {
fprintf(stderr, not_a_directory, "cp", baseDestName);
goto exit_false;
}
while (argc-- > 1) {
size_t srcLen;
int flags_memo;
baseSrcName = *(argv++);
if ((srcLen = strlen(baseSrcName)) > PATH_MAX)
goto name_too_long__exit;
if (srcLen == 0)
continue;
srcDirFlag = isDirectory(baseSrcName, followLinks, &srcStatBuf);
if ((flags_memo = (recursiveFlag == TRUE &&
srcDirFlag == TRUE && destDirFlag == TRUE))) {
if ((destStatBuf.st_ino == srcStatBuf.st_ino) &&
(destStatBuf.st_rdev == srcStatBuf.st_rdev)) {
fprintf(stderr,
"%s: Cannot %s `%s' into a subdirectory of itself, `%s/%s'\n",
dz, dz, baseSrcName, baseDestName, baseSrcName);
continue;
}
fill_baseDest_buf(baseDestName, &baseDestLen);
}
if (recursiveAction(baseSrcName,
recursiveFlag, followLinks, FALSE,
fileAction, fileAction) == FALSE)
goto exit_false;
if (dz_i == is_mv &&
recursiveAction(baseSrcName,
recursiveFlag, followLinks, TRUE,
rmfileAction, rmdirAction) == FALSE)
goto exit_false;
if (flags_memo)
*(baseDestName + baseDestLen) = '\0';
}
exit TRUE;
name_too_long__exit:
fprintf(stderr, name_too_long, "cp");
exit_false:
exit FALSE;
}
// Local Variables:
// c-file-style: "linux"
// tab-width: 4
// End:
|
