1 /*- 2 * Copyright (C) 1996 3 * David L. Nugent. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #ifndef lint 28 static const char rcsid[] = 29 "$Id$"; 30 #endif /* not lint */ 31 32 #include <err.h> 33 #include <errno.h> 34 #include <fcntl.h> 35 #include <stdio.h> 36 #include <string.h> 37 #include <stdlib.h> 38 #include <unistd.h> 39 #include <sys/types.h> 40 #include <sys/stat.h> 41 #include <sys/param.h> 42 #include <dirent.h> 43 44 #include "pwupd.h" 45 46 void 47 copymkdir(char const * dir, char const * skel, mode_t mode, uid_t uid, gid_t gid) 48 { 49 int rc = 0; 50 char src[MAXPATHLEN]; 51 char dst[MAXPATHLEN]; 52 53 if (mkdir(dir, mode) != 0 && errno != EEXIST) { 54 warn("mkdir(%s)", dir); 55 } else { 56 int infd, outfd; 57 struct stat st; 58 59 static char counter = 0; 60 static char *copybuf = NULL; 61 62 ++counter; 63 chown(dir, uid, gid); 64 if (skel == NULL || *skel == '\0') 65 rc = 1; 66 else { 67 DIR *d = opendir(skel); 68 69 if (d != NULL) { 70 struct dirent *e; 71 72 while ((e = readdir(d)) != NULL) { 73 char *p = e->d_name; 74 75 sprintf(src, "%s/%s", skel, p); 76 if (stat(src, &st) == 0) { 77 if (strncmp(p, "dot.", 4) == 0) /* Conversion */ 78 p += 3; 79 sprintf(dst, "%s/%s", dir, p); 80 if (S_ISDIR(st.st_mode)) { /* Recurse for this */ 81 if (strcmp(e->d_name, ".") != 0 && strcmp(e->d_name, "..") != 0) 82 copymkdir(dst, src, (st.st_mode & 0777), uid, gid); 83 /* 84 * Note: don't propogate 'special' attributes 85 */ 86 } else if (S_ISREG(st.st_mode) && (outfd = open(dst, O_RDWR | O_CREAT | O_EXCL, st.st_mode)) != -1) { 87 if ((infd = open(src, O_RDONLY)) == -1) { 88 close(outfd); 89 remove(dst); 90 } else { 91 int b; 92 93 /* 94 * Allocate our copy buffer if we need to 95 */ 96 if (copybuf == NULL) 97 copybuf = malloc(4096); 98 while ((b = read(infd, copybuf, 4096)) > 0) 99 write(outfd, copybuf, b); 100 close(infd); 101 close(outfd); 102 chown(dst, uid, gid); 103 } 104 } 105 } 106 } 107 closedir(d); 108 } 109 } 110 if (--counter == 0 && copybuf != NULL) { 111 free(copybuf); 112 copybuf = NULL; 113 } 114 } 115 } 116 117