cpdir.c revision 63094
120253Sjoerg/*- 220302Sjoerg * Copyright (C) 1996 320302Sjoerg * David L. Nugent. All rights reserved. 420253Sjoerg * 520253Sjoerg * Redistribution and use in source and binary forms, with or without 620253Sjoerg * modification, are permitted provided that the following conditions 720253Sjoerg * are met: 820253Sjoerg * 1. Redistributions of source code must retain the above copyright 920302Sjoerg * notice, this list of conditions and the following disclaimer. 1020253Sjoerg * 2. Redistributions in binary form must reproduce the above copyright 1120253Sjoerg * notice, this list of conditions and the following disclaimer in the 1220253Sjoerg * documentation and/or other materials provided with the distribution. 1320253Sjoerg * 1420302Sjoerg * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 1520253Sjoerg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1620253Sjoerg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1720302Sjoerg * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 1820253Sjoerg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1920253Sjoerg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2020253Sjoerg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2120253Sjoerg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2220253Sjoerg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2320253Sjoerg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2420253Sjoerg * SUCH DAMAGE. 2520253Sjoerg */ 2620253Sjoerg 2730259Scharnier#ifndef lint 2830259Scharnierstatic const char rcsid[] = 2950479Speter "$FreeBSD: head/usr.sbin/pw/cpdir.c 63094 2000-07-13 23:52:49Z davidn $"; 3030259Scharnier#endif /* not lint */ 3130259Scharnier 3230259Scharnier#include <err.h> 3330259Scharnier#include <errno.h> 3430259Scharnier#include <fcntl.h> 3520253Sjoerg#include <stdio.h> 3620253Sjoerg#include <string.h> 3720253Sjoerg#include <stdlib.h> 3830259Scharnier#include <unistd.h> 3920253Sjoerg#include <sys/types.h> 4020253Sjoerg#include <sys/stat.h> 4130259Scharnier#include <sys/param.h> 4220253Sjoerg#include <dirent.h> 4320253Sjoerg 4420253Sjoerg#include "pwupd.h" 4520253Sjoerg 4620253Sjoergvoid 4720253Sjoergcopymkdir(char const * dir, char const * skel, mode_t mode, uid_t uid, gid_t gid) 4820253Sjoerg{ 4920253Sjoerg int rc = 0; 5020253Sjoerg char src[MAXPATHLEN]; 5120253Sjoerg char dst[MAXPATHLEN]; 5220253Sjoerg 5320253Sjoerg if (mkdir(dir, mode) != 0 && errno != EEXIST) { 5430259Scharnier warn("mkdir(%s)", dir); 5520253Sjoerg } else { 5620253Sjoerg int infd, outfd; 5720253Sjoerg struct stat st; 5820253Sjoerg 5920253Sjoerg static char counter = 0; 6020253Sjoerg static char *copybuf = NULL; 6120253Sjoerg 6220253Sjoerg ++counter; 6320253Sjoerg chown(dir, uid, gid); 6420253Sjoerg if (skel == NULL || *skel == '\0') 6520253Sjoerg rc = 1; 6620253Sjoerg else { 6720253Sjoerg DIR *d = opendir(skel); 6820253Sjoerg 6920253Sjoerg if (d != NULL) { 7020253Sjoerg struct dirent *e; 7120253Sjoerg 7220253Sjoerg while ((e = readdir(d)) != NULL) { 7320253Sjoerg char *p = e->d_name; 7420253Sjoerg 7563094Sdavidn if (snprintf(src, sizeof(src), "%s/%s", skel, p) >= (int)sizeof(src)) 7663094Sdavidn warn("warning: pathname too long '%s/%s' (skel not copied)", skel, p); 7763094Sdavidn else if (stat(src, &st) == 0) { 7820253Sjoerg if (strncmp(p, "dot.", 4) == 0) /* Conversion */ 7920253Sjoerg p += 3; 8063094Sdavidn if (snprintf(dst, sizeof(dst), "%s/%s", dir, p) >= (int)sizeof(dst)) 8163094Sdavidn warn("warning: path too long '%s/%s' (skel file skipped)", dir, p); 8263094Sdavidn else { 8363094Sdavidn if (S_ISDIR(st.st_mode)) { /* Recurse for this */ 8420253Sjoerg if (strcmp(e->d_name, ".") != 0 && strcmp(e->d_name, "..") != 0) 8520253Sjoerg copymkdir(dst, src, (st.st_mode & 0777), uid, gid); 8663094Sdavidn chflags(dst, st.st_flags); /* propogate flags */ 8720253Sjoerg /* 8863094Sdavidn * Note: don't propogate special attributes 8963094Sdavidn * but do propogate file flags 9020253Sjoerg */ 9163094Sdavidn } else if (S_ISREG(st.st_mode) && (outfd = open(dst, O_RDWR | O_CREAT | O_EXCL, st.st_mode)) != -1) { 9220253Sjoerg if ((infd = open(src, O_RDONLY)) == -1) { 9320253Sjoerg close(outfd); 9420253Sjoerg remove(dst); 9520253Sjoerg } else { 9620253Sjoerg int b; 9720253Sjoerg 9820253Sjoerg /* 9920253Sjoerg * Allocate our copy buffer if we need to 10020253Sjoerg */ 10120253Sjoerg if (copybuf == NULL) 10220253Sjoerg copybuf = malloc(4096); 10320253Sjoerg while ((b = read(infd, copybuf, 4096)) > 0) 10420253Sjoerg write(outfd, copybuf, b); 10520253Sjoerg close(infd); 10663094Sdavidn /* 10763094Sdavidn * Propogate special filesystem flags 10863094Sdavidn */ 10963094Sdavidn fchown(outfd, uid, gid); 11063094Sdavidn fchflags(outfd, st.st_flags); 11120253Sjoerg close(outfd); 11220253Sjoerg chown(dst, uid, gid); 11320253Sjoerg } 11463094Sdavidn } 11520253Sjoerg } 11620253Sjoerg } 11720253Sjoerg } 11820253Sjoerg closedir(d); 11920253Sjoerg } 12020253Sjoerg } 12120253Sjoerg if (--counter == 0 && copybuf != NULL) { 12220253Sjoerg free(copybuf); 12320253Sjoerg copybuf = NULL; 12420253Sjoerg } 12520253Sjoerg } 12620253Sjoerg} 12720267Sjoerg 128