1 /* 2 * Copyright (c) 1987, 1993, 1994 3 * The Regents of the University of California. 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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1987, 1993, 1994\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)vipw.c 8.3 (Berkeley) 4/2/94"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 47 48 #include <sys/types.h> 49 #include <sys/stat.h> 50 51 #include <err.h> 52 #include <pwd.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <unistd.h> 57 58 #include "pw_util.h" 59 60 extern char *mppath; 61 extern char *masterpasswd; 62 char *tempname; 63 64 static void copyfile(int, int); 65 static void usage(void); 66 67 int 68 main(int argc, char *argv[]) 69 { 70 int pfd, tfd; 71 struct stat begin, end; 72 int ch; 73 74 while ((ch = getopt(argc, argv, "d:")) != -1) 75 switch (ch) { 76 case 'd': 77 if ((masterpasswd = malloc(strlen(optarg) + 78 strlen(_MASTERPASSWD) + 2)) == NULL) 79 err(1, NULL); 80 strcpy(masterpasswd, optarg); 81 if (masterpasswd[strlen(masterpasswd) - 1] != '/') 82 strcat(masterpasswd, "/" _MASTERPASSWD); 83 else 84 strcat(masterpasswd, _MASTERPASSWD); 85 if ((mppath = strdup(optarg)) == NULL) 86 err(1, NULL); 87 if (mppath[strlen(mppath) - 1] == '/') 88 mppath[strlen(mppath) - 1] = '\0'; 89 break; 90 case '?': 91 default: 92 usage(); 93 } 94 95 argc -= optind; 96 argv += optind; 97 98 if (argc != 0) 99 usage(); 100 101 pw_init(); 102 pfd = pw_lock(); 103 tfd = pw_tmp(); 104 copyfile(pfd, tfd); 105 (void)close(tfd); 106 /* Force umask for partial writes made in the edit phase */ 107 (void)umask(077); 108 109 for (;;) { 110 if (stat(tempname, &begin)) 111 pw_error(tempname, 1, 1); 112 pw_edit(0); 113 if (stat(tempname, &end)) 114 pw_error(tempname, 1, 1); 115 if (begin.st_mtime == end.st_mtime) { 116 warnx("no changes made"); 117 pw_error((char *)NULL, 0, 0); 118 } 119 if (pw_mkdb((char *)NULL)) 120 break; 121 pw_prompt(); 122 } 123 exit(0); 124 } 125 126 static void 127 copyfile(int from, int to) 128 { 129 int nr, nw, off; 130 char buf[8*1024]; 131 132 while ((nr = read(from, buf, sizeof(buf))) > 0) 133 for (off = 0; off < nr; nr -= nw, off += nw) 134 if ((nw = write(to, buf + off, nr)) < 0) 135 pw_error(tempname, 1, 1); 136 if (nr < 0) 137 pw_error(masterpasswd, 1, 1); 138 } 139 140 static void 141 usage(void) 142 { 143 144 (void)fprintf(stderr, "usage: vipw [ -d directory ]\n"); 145 exit(1); 146 } 147