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This commit is contained in:
Eric Andersen
1999-10-09 00:25:00 +00:00
parent 8341a15653
commit f811e07b07
17 changed files with 883 additions and 873 deletions
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218
coreutils/cp.c
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@ -1,89 +1,141 @@
/*
* Mini cp implementation for busybox
*
* Copyright (C) 1998 by Erik Andersen <andersee@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"
#include <stdio.h>
#include <sys/stat.h>
#include <sys/fcntl.h>
#include <sys/param.h>
#include <errno.h>
#include <time.h>
#include <utime.h>
#include <dirent.h>
const char cp_usage[] = "cp [-r] source-file destination-file\n"
"\t\tcp [-r] source-file [source-file ...] destination-directory\n"
"\n"
"\tCopy the source files to the destination.\n"
"\n"
"\t-r:\tRecursively copy all files and directories\n"
"\t\tunder the argument directory.";
const char cp_usage[] = "cp [OPTION]... SOURCE DEST\n"
" or: cp [OPTION]... SOURCE... DIRECTORY\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";
extern int
cp_fn(const struct FileInfo * i)
static int recursiveFlag = FALSE;
static int followLinks = FALSE;
static int preserveFlag = FALSE;
static const char *srcName;
static const char *destName;
static int fileAction(const char *fileName)
{
int sourceFd;
int destinationFd;
const char * destination = i->destination;
struct stat destination_stat;
int status;
char buf[8192];
char d[PATH_MAX];
if ( (i->stat.st_mode & S_IFMT) == S_IFDIR ) {
if ( mkdir(destination, i->stat.st_mode & ~S_IFMT)
!= 0 && errno != EEXIST ) {
name_and_error(destination);
return 1;
}
return 0;
}
if ( (sourceFd = open(i->source, O_RDONLY)) < 0 ) {
name_and_error(i->source);
return 1;
}
if ( stat(destination, &destination_stat) == 0 ) {
if ( i->stat.st_ino == destination_stat.st_ino
&& i->stat.st_dev == destination_stat.st_dev ) {
fprintf(stderr
,"copy of %s to %s would copy file to itself.\n"
,i->source
,destination);
close(sourceFd);
return 1;
}
}
/*
* If the destination is a directory, create a file within it.
*/
if ( (destination_stat.st_mode & S_IFMT) == S_IFDIR ) {
destination = join_paths(
d
,i->destination
,&i->source[i->directoryLength]);
if ( stat(destination, &destination_stat) == 0 ) {
if ( i->stat.st_ino == destination_stat.st_ino
&& i->stat.st_dev == destination_stat.st_dev ) {
fprintf(stderr
,"copy of %s to %s would copy file to itself.\n"
,i->source
,destination);
close(sourceFd);
return 1;
}
}
}
destinationFd = creat(destination, i->stat.st_mode & 07777);
while ( (status = read(sourceFd, buf, sizeof(buf))) > 0 ) {
if ( write(destinationFd, buf, status) != status ) {
name_and_error(destination);
close(sourceFd);
close(destinationFd);
return 1;
}
}
close(sourceFd);
close(destinationFd);
if ( status < 0 ) {
name_and_error(i->source);
return 1;
}
return 0;
char newdestName[NAME_MAX];
strcpy(newdestName, destName);
strcat(newdestName, fileName+(strlen(srcName)));
fprintf(stderr, "A: copying %s to %s\n", fileName, newdestName);
return (copyFile(fileName, newdestName, preserveFlag, followLinks));
}
static int dirAction(const char *fileName)
{
char newdestName[NAME_MAX];
struct stat statBuf;
struct utimbuf times;
strcpy(newdestName, destName);
strcat(newdestName, fileName+(strlen(srcName)));
if (stat(newdestName, &statBuf)) {
if (mkdir( newdestName, 0777777 ^ umask (0))) {
perror(newdestName);
return( FALSE);
}
}
else if (!S_ISDIR (statBuf.st_mode)) {
fprintf(stderr, "`%s' exists but is not a directory", newdestName);
return( FALSE);
}
if (preserveFlag==TRUE) {
/* Try to preserve premissions, but don't whine on failure */
if (stat(newdestName, &statBuf)) {
perror(newdestName);
return( FALSE);
}
chmod(newdestName, statBuf.st_mode);
chown(newdestName, statBuf.st_uid, statBuf.st_gid);
times.actime = statBuf.st_atime;
times.modtime = statBuf.st_mtime;
utime(newdestName, &times);
}
return TRUE;
}
extern int cp_main(int argc, char **argv)
{
int dirFlag;
if (argc < 3) {
fprintf(stderr, "Usage: %s", cp_usage);
return (FALSE);
}
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:
fprintf(stderr, "Usage: %s\n", cp_usage);
exit(FALSE);
}
argc--;
argv++;
}
destName = argv[argc - 1];
dirFlag = isDirectory(destName);
if ((argc > 3) && !dirFlag) {
fprintf(stderr, "%s: not a directory\n", destName);
return (FALSE);
}
while (argc-- >= 2) {
srcName = *(argv++);
return recursiveAction(srcName, recursiveFlag, followLinks,
fileAction, fileAction);
}
return( TRUE);
}