diff options
Diffstat (limited to 'system_cmds/chpass.tproj/pw_copy.c')
| -rw-r--r-- | system_cmds/chpass.tproj/pw_copy.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/system_cmds/chpass.tproj/pw_copy.c b/system_cmds/chpass.tproj/pw_copy.c new file mode 100644 index 0000000..8aa74a6 --- /dev/null +++ b/system_cmds/chpass.tproj/pw_copy.c @@ -0,0 +1,127 @@ +/* + * Copyright (c) 1999-2016 Apple Inc. All rights reserved. + * + * @APPLE_LICENSE_HEADER_START@ + * + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this + * file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. + * + * @APPLE_LICENSE_HEADER_END@ + */ +/*- + * Copyright (c) 1990, 1993, 1994 + * The Regents of the University of California. 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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. + */ + +/* + * This module is used to copy the master password file, replacing a single + * record, by chpass(1) and passwd(1). + */ + +#include <err.h> +#include <pwd.h> +#include <stdio.h> +#include <string.h> + +#include "pw_util.h" +#include "pw_copy.h" + +extern char *tempname; + +void +pw_copy(int ffd, int tfd, struct passwd *pw) +{ + FILE *from, *to; + int done; + char *p, buf[8192]; + + if (!(from = fdopen(ffd, "r"))) + pw_error(_PATH_MASTERPASSWD, 1, 1); + if (!(to = fdopen(tfd, "w"))) + pw_error(tempname, 1, 1); + + for (done = 0; fgets(buf, sizeof(buf), from);) { + if (!strchr(buf, '\n')) { + warnx("%s: line too long", _PATH_MASTERPASSWD); + pw_error(NULL, 0, 1); + } +#if defined(__APPLE__) + if (done || (buf[0] == '#')) { +#else + if (done) { +#endif + (void)fprintf(to, "%s", buf); + if (ferror(to)) + goto err; + continue; + } + if (!(p = strchr(buf, ':'))) { + warnx("%s: corrupted entry", _PATH_MASTERPASSWD); + pw_error(NULL, 0, 1); + } + *p = '\0'; + if (strcmp(buf, pw->pw_name)) { + *p = ':'; + (void)fprintf(to, "%s", buf); + if (ferror(to)) + goto err; + continue; + } + (void)fprintf(to, "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n", + pw->pw_name, pw->pw_passwd, pw->pw_uid, pw->pw_gid, + pw->pw_class, pw->pw_change, pw->pw_expire, pw->pw_gecos, + pw->pw_dir, pw->pw_shell); + done = 1; + if (ferror(to)) + goto err; + } + if (!done) + (void)fprintf(to, "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n", + pw->pw_name, pw->pw_passwd, pw->pw_uid, pw->pw_gid, + pw->pw_class, pw->pw_change, pw->pw_expire, pw->pw_gecos, + pw->pw_dir, pw->pw_shell); + + if (ferror(to)) +err: pw_error(NULL, 1, 1); + (void)fclose(to); +} |