mirror of
https://github.com/sheumann/hush.git
synced 2024-09-12 00:55:11 +00:00
248 lines
5.9 KiB
C
248 lines
5.9 KiB
C
/* 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;
|
|
|
|
char baseDestName[PATH_MAX + 1];
|
|
size_t baseDestLen;
|
|
int destDirFlag;
|
|
|
|
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) {
|
|
__label__ return_false;
|
|
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");
|
|
goto return_false;
|
|
}
|
|
strcat(destName, srcBasename);
|
|
} else if (destDirFlag == TRUE) {
|
|
fill_baseDest_buf(&destName[0], &destLen);
|
|
} else {
|
|
srcBasename = baseSrcName;
|
|
}
|
|
return copyFile(fileName, destName, preserveFlag, followLinks);
|
|
|
|
return_false:
|
|
return FALSE;
|
|
}
|
|
|
|
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);
|
|
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);
|
|
|
|
if ((flags_memo = (recursiveFlag == TRUE &&
|
|
srcDirFlag == TRUE && destDirFlag == TRUE))) {
|
|
fill_baseDest_buf(&baseDestName[0], &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: "k&r"
|
|
// c-basic-offset: 4
|
|
// End:
|