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/*-
* 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.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)pw_copy.c 8.4 (Berkeley) 4/2/94";
#endif
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
/*
* 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 "yppasswdd_extern.h"
int
pw_copy(int ffd, int tfd, struct passwd *pw)
{
FILE *from, *to;
int done;
char *p, buf[8192];
char uidstr[20];
char gidstr[20];
char chgstr[20];
char expstr[20];
snprintf(uidstr, sizeof(uidstr), "%d", pw->pw_uid);
snprintf(gidstr, sizeof(gidstr), "%d", pw->pw_gid);
snprintf(chgstr, sizeof(chgstr), "%ld", pw->pw_change);
snprintf(expstr, sizeof(expstr), "%ld", pw->pw_expire);
if (!(from = fdopen(ffd, "r"))) {
pw_error(passfile, 1, 1);
return(-1);
}
if (!(to = fdopen(tfd, "w"))) {
pw_error(tempname, 1, 1);
return(-1);
}
for (done = 0; fgets(buf, sizeof(buf), from);) {
if (!strchr(buf, '\n')) {
yp_error("%s: line too long", passfile);
pw_error(NULL, 0, 1);
goto err;
}
if (done) {
(void)fprintf(to, "%s", buf);
if (ferror(to))
goto err;
continue;
}
/*
* Just copy comments and blank lines
*/
p = buf + strspn(buf, " \t\n");
if (*p == '\0' || *p == '#') {
(void)fprintf(to, "%s", buf);
if (ferror(to))
goto err;
continue;
}
if (!(p = strchr(buf, ':'))) {
yp_error("%s: corrupted entry", passfile);
pw_error(NULL, 0, 1);
goto err;
}
*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:%s:%s:%s:%s:%s:%s:%s:%s\n",
pw->pw_name, pw->pw_passwd,
pw->pw_fields & _PWF_UID ? uidstr : "",
pw->pw_fields & _PWF_GID ? gidstr : "",
pw->pw_class,
pw->pw_fields & _PWF_CHANGE ? chgstr : "",
pw->pw_fields & _PWF_EXPIRE ? expstr : "",
pw->pw_gecos, pw->pw_dir, pw->pw_shell);
done = 1;
if (ferror(to))
goto err;
}
if (!done) {
if (allow_additions) {
(void)fprintf(to, "%s:%s:%s:%s:%s:%s:%s:%s:%s:%s\n",
pw->pw_name, pw->pw_passwd,
pw->pw_fields & _PWF_UID ? uidstr : "",
pw->pw_fields & _PWF_GID ? gidstr : "",
pw->pw_class,
pw->pw_fields & _PWF_CHANGE ? chgstr : "",
pw->pw_fields & _PWF_EXPIRE ? expstr : "",
pw->pw_gecos, pw->pw_dir, pw->pw_shell);
} else {
yp_error("user \"%s\" not found in %s -- \
NIS maps and password file possibly out of sync", pw->pw_name, passfile);
goto err;
}
}
if (ferror(to)) {
err: pw_error(NULL, 1, 1);
(void)fclose(to);
(void)fclose(from);
return(-1);
}
(void)fclose(to);
(void)fclose(from);
return(0);
}
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