142 lines
4.0 KiB
C
142 lines
4.0 KiB
C
|
/*
|
||
|
|
* copy.c - functions for copying files and directories
|
||
|
|
*
|
||
|
|
* Copyright (C) 2007 Red Hat, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <dirent.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
|
||
|
|
#include "lang.h"
|
||
|
|
|
||
|
|
/* Recursive */
|
||
|
|
int copyDirectory(char * from, char * to, void (*warnFn)(char *),
|
||
|
|
void (*errorFn)(char *)) {
|
||
|
|
char *msg;
|
||
|
|
DIR * dir;
|
||
|
|
struct dirent * ent;
|
||
|
|
int fd, outfd;
|
||
|
|
char buf[4096];
|
||
|
|
int i;
|
||
|
|
struct stat sb;
|
||
|
|
char filespec[256];
|
||
|
|
char filespec2[256];
|
||
|
|
char link[1024];
|
||
|
|
|
||
|
|
mkdir(to, 0755);
|
||
|
|
|
||
|
|
if (!(dir = opendir(from))) {
|
||
|
|
if (errorFn) {
|
||
|
|
if (asprintf(&msg, N_("Failed to read directory %s: %m"), from) == -1) {
|
||
|
|
fprintf(stderr, "%s: %d: %m\n", __func__, __LINE__);
|
||
|
|
fflush(stderr);
|
||
|
|
abort();
|
||
|
|
}
|
||
|
|
|
||
|
|
errorFn(msg);
|
||
|
|
free(msg);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
errno = 0;
|
||
|
|
while ((ent = readdir(dir))) {
|
||
|
|
if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
sprintf(filespec, "%s/%s", from, ent->d_name);
|
||
|
|
sprintf(filespec2, "%s/%s", to, ent->d_name);
|
||
|
|
|
||
|
|
lstat(filespec, &sb);
|
||
|
|
|
||
|
|
if (S_ISDIR(sb.st_mode)) {
|
||
|
|
if (copyDirectory(filespec, filespec2, warnFn, errorFn)) {
|
||
|
|
closedir(dir);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
} else if (S_ISLNK(sb.st_mode)) {
|
||
|
|
i = readlink(filespec, link, sizeof(link) - 1);
|
||
|
|
link[i] = '\0';
|
||
|
|
if (symlink(link, filespec2)) {
|
||
|
|
if (warnFn) {
|
||
|
|
if (asprintf(&msg, "Failed to symlink %s to %s: %m",
|
||
|
|
filespec2, link) == -1) {
|
||
|
|
fprintf(stderr, "%s: %d: %m\n", __func__, __LINE__);
|
||
|
|
fflush(stderr);
|
||
|
|
abort();
|
||
|
|
}
|
||
|
|
|
||
|
|
warnFn(msg);
|
||
|
|
free(msg);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
fd = open(filespec, O_RDONLY);
|
||
|
|
if (fd == -1) {
|
||
|
|
if (errorFn) {
|
||
|
|
if (asprintf(&msg, "Failed to open %s: %m", filespec) == -1) {
|
||
|
|
fprintf(stderr, "%s: %d: %m\n", __func__, __LINE__);
|
||
|
|
fflush(stderr);
|
||
|
|
abort();
|
||
|
|
}
|
||
|
|
|
||
|
|
errorFn(msg);
|
||
|
|
free(msg);
|
||
|
|
}
|
||
|
|
|
||
|
|
closedir(dir);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
outfd = open(filespec2, O_RDWR | O_TRUNC | O_CREAT, 0644);
|
||
|
|
if (outfd == -1) {
|
||
|
|
if (warnFn) {
|
||
|
|
if (asprintf(&msg, "Failed to create %s: %m", filespec2) == -1) {
|
||
|
|
fprintf(stderr, "%s: %d: %m\n", __func__, __LINE__);
|
||
|
|
fflush(stderr);
|
||
|
|
abort();
|
||
|
|
}
|
||
|
|
|
||
|
|
warnFn(msg);
|
||
|
|
free(msg);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
fchmod(outfd, sb.st_mode & 07777);
|
||
|
|
|
||
|
|
while ((i = read(fd, buf, sizeof(buf))) > 0)
|
||
|
|
i = write(outfd, buf, i);
|
||
|
|
close(outfd);
|
||
|
|
}
|
||
|
|
|
||
|
|
close(fd);
|
||
|
|
}
|
||
|
|
|
||
|
|
errno = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
closedir(dir);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|