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142 lines
4.0 KiB
142 lines
4.0 KiB
/*
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* copy.c - functions for copying files and directories
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*
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* Copyright (C) 2007 Red Hat, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "lang.h"
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/* Recursive */
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int copyDirectory(char * from, char * to, void (*warnFn)(char *),
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void (*errorFn)(char *)) {
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char *msg;
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DIR * dir;
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struct dirent * ent;
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int fd, outfd;
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char buf[4096];
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int i;
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struct stat sb;
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char filespec[256];
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char filespec2[256];
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char link[1024];
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mkdir(to, 0755);
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if (!(dir = opendir(from))) {
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if (errorFn) {
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if (asprintf(&msg, N_("Failed to read directory %s: %m"), from) == -1) {
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fprintf(stderr, "%s: %d: %m\n", __func__, __LINE__);
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fflush(stderr);
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abort();
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}
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errorFn(msg);
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free(msg);
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}
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return 1;
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}
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errno = 0;
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while ((ent = readdir(dir))) {
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if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
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continue;
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sprintf(filespec, "%s/%s", from, ent->d_name);
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sprintf(filespec2, "%s/%s", to, ent->d_name);
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lstat(filespec, &sb);
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if (S_ISDIR(sb.st_mode)) {
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if (copyDirectory(filespec, filespec2, warnFn, errorFn)) {
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closedir(dir);
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return 1;
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}
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} else if (S_ISLNK(sb.st_mode)) {
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i = readlink(filespec, link, sizeof(link) - 1);
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link[i] = '\0';
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if (symlink(link, filespec2)) {
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if (warnFn) {
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if (asprintf(&msg, "Failed to symlink %s to %s: %m",
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filespec2, link) == -1) {
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fprintf(stderr, "%s: %d: %m\n", __func__, __LINE__);
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fflush(stderr);
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abort();
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}
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warnFn(msg);
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free(msg);
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}
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}
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} else {
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fd = open(filespec, O_RDONLY);
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if (fd == -1) {
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if (errorFn) {
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if (asprintf(&msg, "Failed to open %s: %m", filespec) == -1) {
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fprintf(stderr, "%s: %d: %m\n", __func__, __LINE__);
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fflush(stderr);
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abort();
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}
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errorFn(msg);
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free(msg);
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}
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closedir(dir);
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return 1;
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}
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outfd = open(filespec2, O_RDWR | O_TRUNC | O_CREAT, 0644);
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if (outfd == -1) {
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if (warnFn) {
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if (asprintf(&msg, "Failed to create %s: %m", filespec2) == -1) {
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fprintf(stderr, "%s: %d: %m\n", __func__, __LINE__);
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fflush(stderr);
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abort();
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}
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warnFn(msg);
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free(msg);
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}
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} else {
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fchmod(outfd, sb.st_mode & 07777);
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while ((i = read(fd, buf, sizeof(buf))) > 0)
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i = write(outfd, buf, i);
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close(outfd);
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}
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close(fd);
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}
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errno = 0;
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}
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closedir(dir);
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return 0;
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}
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