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/*-
* Copyright (C) 1996
* David L. Nugent. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <dirent.h>
#include "pwupd.h"
void
copymkdir(char const * dir, char const * skel, mode_t mode, uid_t uid, gid_t gid)
{
char src[MAXPATHLEN];
char dst[MAXPATHLEN];
char lnk[MAXPATHLEN];
int len;
if (mkdir(dir, mode) != 0 && errno != EEXIST) {
warn("mkdir(%s)", dir);
} else {
int infd, outfd;
struct stat st;
static char counter = 0;
static char *copybuf = NULL;
++counter;
chown(dir, uid, gid);
if (skel != NULL && *skel != '\0') {
DIR *d = opendir(skel);
if (d != NULL) {
struct dirent *e;
while ((e = readdir(d)) != NULL) {
char *p = e->d_name;
if (snprintf(src, sizeof(src), "%s/%s", skel, p) >= (int)sizeof(src))
warn("warning: pathname too long '%s/%s' (skel not copied)", skel, p);
else if (lstat(src, &st) == 0) {
if (strncmp(p, "dot.", 4) == 0) /* Conversion */
p += 3;
if (snprintf(dst, sizeof(dst), "%s/%s", dir, p) >= (int)sizeof(dst))
warn("warning: path too long '%s/%s' (skel file skipped)", dir, p);
else {
if (S_ISDIR(st.st_mode)) { /* Recurse for this */
if (strcmp(e->d_name, ".") != 0 && strcmp(e->d_name, "..") != 0)
copymkdir(dst, src, (st.st_mode & 0777), uid, gid);
chflags(dst, st.st_flags); /* propogate flags */
} else if (S_ISLNK(st.st_mode) && (len = readlink(src, lnk, sizeof(lnk))) != -1) {
lnk[len] = '\0';
symlink(lnk, dst);
lchown(dst, uid, gid);
/*
* Note: don't propogate special attributes
* but do propogate file flags
*/
} else if (S_ISREG(st.st_mode) && (outfd = open(dst, O_RDWR | O_CREAT | O_EXCL, st.st_mode)) != -1) {
if ((infd = open(src, O_RDONLY)) == -1) {
close(outfd);
remove(dst);
} else {
int b;
/*
* Allocate our copy buffer if we need to
*/
if (copybuf == NULL)
copybuf = malloc(4096);
while ((b = read(infd, copybuf, 4096)) > 0)
write(outfd, copybuf, b);
close(infd);
/*
* Propogate special filesystem flags
*/
fchown(outfd, uid, gid);
fchflags(outfd, st.st_flags);
close(outfd);
chown(dst, uid, gid);
}
}
}
}
}
closedir(d);
}
}
if (--counter == 0 && copybuf != NULL) {
free(copybuf);
copybuf = NULL;
}
}
}
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