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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/chpass/field.c	Lines:	0	94	0.0 %
Date:	2017-11-07	Branches:	0	62	0.0 %


/*	$OpenBSD: field.c,v 1.14 2015/01/16 06:40:06 deraadt Exp $	*/
/*	$NetBSD: field.c,v 1.3 1995/03/26 04:55:28 glass Exp $	*/

/*
 * Copyright (c) 1988, 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. 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.
 */

#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <grp.h>
#include <paths.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>

#include "chpass.h"

/* ARGSUSED */
int
p_login(char *p, struct passwd *pw, ENTRY *ep)
{
	if (!*p) {
		warnx("empty login field");
		return (1);
	}
	if (*p == '-') {
		warnx("login names may not begin with a hyphen");
		return (1);
	}
	/* XXX - what about truncated names? */
	if (strcmp(pw->pw_name, p) != 0 && getpwnam(p) != NULL) {
		warnx("login %s already exists", p);
		return (1);
	}
	if (!(pw->pw_name = strdup(p))) {
		warnx("can't save entry");
		return (1);
	}
	if (strchr(p, '.'))
		warnx("\'.\' is dangerous in a login name");
	for (; *p; ++p)
		if (isupper((unsigned char)*p)) {
			warnx("upper-case letters are dangerous in a login name");
			break;
		}
	return (0);
}

/* ARGSUSED */
int
p_passwd(char *p, struct passwd *pw, ENTRY *ep)
{
	if (!*p)
		pw->pw_passwd = "";	/* "NOLOGIN"; */
	else if (!(pw->pw_passwd = strdup(p))) {
		warnx("can't save password entry");
		return (1);
	}

	return (0);
}

/* ARGSUSED */
int
p_uid(char *p, struct passwd *pw, ENTRY *ep)
{
	uid_t id;
	const char *errstr;

	if (!*p) {
		warnx("empty uid field");
		return (1);
	}
	id = (uid_t)strtonum(p, 0, UID_MAX, &errstr);
	if (errstr) {
		warnx("uid is %s", errstr);
		return (1);
	}
	pw->pw_uid = id;
	return (0);
}

/* ARGSUSED */
int
p_gid(char *p, struct passwd *pw, ENTRY *ep)
{
	struct group *gr;
	const char *errstr;
	gid_t id;

	if (!*p) {
		warnx("empty gid field");
		return (1);
	}
	if (!isdigit((unsigned char)*p)) {
		if (!(gr = getgrnam(p))) {
			warnx("unknown group %s", p);
			return (1);
		}
		pw->pw_gid = gr->gr_gid;
		return (0);
	}
	id = (uid_t)strtonum(p, 0, GID_MAX, &errstr);
	if (errstr) {
		warnx("gid is %s", errstr);
		return (1);
	}
	pw->pw_gid = id;
	return (0);
}

/* ARGSUSED */
int
p_class(char *p, struct passwd *pw, ENTRY *ep)
{
	if (!*p)
		pw->pw_class = "";
	else if (!(pw->pw_class = strdup(p))) {
		warnx("can't save entry");
		return (1);
	}

	return (0);
}

/* ARGSUSED */
int
p_change(char *p, struct passwd *pw, ENTRY *ep)
{
	if (!atot(p, &pw->pw_change))
		return (0);
	warnx("illegal date for change field");
	return (1);
}

/* ARGSUSED */
int
p_expire(char *p, struct passwd *pw, ENTRY *ep)
{
	if (!atot(p, &pw->pw_expire))
		return (0);
	warnx("illegal date for expire field");
	return (1);
}

/* ARGSUSED */
int
p_gecos(char *p, struct passwd *pw, ENTRY *ep)
{
	if (!*p)
		ep->save = "";
	else if (!(ep->save = strdup(p))) {
		warnx("can't save entry");
		return (1);
	}
	return (0);
}

/* ARGSUSED */
int
p_hdir(char *p, struct passwd *pw, ENTRY *ep)
{
	if (!*p) {
		warnx("empty home directory field");
		return (1);
	}
	if (!(pw->pw_dir = strdup(p))) {
		warnx("can't save entry");
		return (1);
	}
	return (0);
}

/* ARGSUSED */
int
p_shell(char *p, struct passwd *pw, ENTRY *ep)
{
	char *t;

	if (!*p) {
		pw->pw_shell = _PATH_BSHELL;
		return (0);
	}
	/* only admin can change from or to "restricted" shells */
	if (uid && pw->pw_shell && !ok_shell(pw->pw_shell, NULL)) {
		warnx("%s: current shell non-standard", pw->pw_shell);
		return (1);
	}
	if (!ok_shell(p, &t)) {
		if (uid) {
			warnx("%s: non-standard shell", p);
			return (1);
		} else
			t = strdup(p);
	}
	if (!(pw->pw_shell = t)) {
		warnx("can't save entry");
		return (1);
	}
	return (0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: field.c,v 1.14 2015/01/16 06:40:06 deraadt Exp $ */
2			/* $NetBSD: field.c,v 1.3 1995/03/26 04:55:28 glass Exp $ */
3
4			/*
5			* Copyright (c) 1988, 1993, 1994
6			* The Regents of the University of California. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			* 3. Neither the name of the University nor the names of its contributors
17			* may be used to endorse or promote products derived from this software
18			* without specific prior written permission.
19			*
20			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30			* SUCH DAMAGE.
31			*/
32
33			#include <ctype.h>
34			#include <err.h>
35			#include <errno.h>
36			#include <grp.h>
37			#include <paths.h>
38			#include <pwd.h>
39			#include <stdio.h>
40			#include <stdlib.h>
41			#include <string.h>
42			#include <unistd.h>
43			#include <limits.h>
44
45			#include "chpass.h"
46
47			/* ARGSUSED */
48			int
49			p_login(char p, struct passwd pw, ENTRY *ep)
50			{
51			if (!*p) {
52			warnx("empty login field");
53			return (1);
54			}
55			if (*p == '-') {
56			warnx("login names may not begin with a hyphen");
57			return (1);
58			}
59			/* XXX - what about truncated names? */
60			if (strcmp(pw->pw_name, p) != 0 && getpwnam(p) != NULL) {
61			warnx("login %s already exists", p);
62			return (1);
63			}
64			if (!(pw->pw_name = strdup(p))) {
65			warnx("can't save entry");
66			return (1);
67			}
68			if (strchr(p, '.'))
69			warnx("\'.\' is dangerous in a login name");
70			for (; *p; ++p)
71			if (isupper((unsigned char)*p)) {
72			warnx("upper-case letters are dangerous in a login name");
73			break;
74			}
75			return (0);
76			}
77
78			/* ARGSUSED */
79			int
80			p_passwd(char p, struct passwd pw, ENTRY *ep)
81			{
82			if (!*p)
83			pw->pw_passwd = ""; /* "NOLOGIN"; */
84			else if (!(pw->pw_passwd = strdup(p))) {
85			warnx("can't save password entry");
86			return (1);
87			}
88
89			return (0);
90			}
91
92			/* ARGSUSED */
93			int
94			p_uid(char p, struct passwd pw, ENTRY *ep)
95			{
96			uid_t id;
97			const char *errstr;
98
99			if (!*p) {
100			warnx("empty uid field");
101			return (1);
102			}
103			id = (uid_t)strtonum(p, 0, UID_MAX, &errstr);
104			if (errstr) {
105			warnx("uid is %s", errstr);
106			return (1);
107			}
108			pw->pw_uid = id;
109			return (0);
110			}
111
112			/* ARGSUSED */
113			int
114			p_gid(char p, struct passwd pw, ENTRY *ep)
115			{
116			struct group *gr;
117			const char *errstr;
118			gid_t id;
119
120			if (!*p) {
121			warnx("empty gid field");
122			return (1);
123			}
124			if (!isdigit((unsigned char)*p)) {
125			if (!(gr = getgrnam(p))) {
126			warnx("unknown group %s", p);
127			return (1);
128			}
129			pw->pw_gid = gr->gr_gid;
130			return (0);
131			}
132			id = (uid_t)strtonum(p, 0, GID_MAX, &errstr);
133			if (errstr) {
134			warnx("gid is %s", errstr);
135			return (1);
136			}
137			pw->pw_gid = id;
138			return (0);
139			}
140
141			/* ARGSUSED */
142			int
143			p_class(char p, struct passwd pw, ENTRY *ep)
144			{
145			if (!*p)
146			pw->pw_class = "";
147			else if (!(pw->pw_class = strdup(p))) {
148			warnx("can't save entry");
149			return (1);
150			}
151
152			return (0);
153			}
154
155			/* ARGSUSED */
156			int
157			p_change(char p, struct passwd pw, ENTRY *ep)
158			{
159			if (!atot(p, &pw->pw_change))
160			return (0);
161			warnx("illegal date for change field");
162			return (1);
163			}
164
165			/* ARGSUSED */
166			int
167			p_expire(char p, struct passwd pw, ENTRY *ep)
168			{
169			if (!atot(p, &pw->pw_expire))
170			return (0);
171			warnx("illegal date for expire field");
172			return (1);
173			}
174
175			/* ARGSUSED */
176			int
177			p_gecos(char p, struct passwd pw, ENTRY *ep)
178			{
179			if (!*p)
180			ep->save = "";
181			else if (!(ep->save = strdup(p))) {
182			warnx("can't save entry");
183			return (1);
184			}
185			return (0);
186			}
187
188			/* ARGSUSED */
189			int
190			p_hdir(char p, struct passwd pw, ENTRY *ep)
191			{
192			if (!*p) {
193			warnx("empty home directory field");
194			return (1);
195			}
196			if (!(pw->pw_dir = strdup(p))) {
197			warnx("can't save entry");
198			return (1);
199			}
200			return (0);
201			}
202
203			/* ARGSUSED */
204			int
205			p_shell(char p, struct passwd pw, ENTRY *ep)
206			{
207			char *t;
208
209			if (!*p) {
210			pw->pw_shell = _PATH_BSHELL;
211			return (0);
212			}
213			/* only admin can change from or to "restricted" shells */
214			if (uid && pw->pw_shell && !ok_shell(pw->pw_shell, NULL)) {
215			warnx("%s: current shell non-standard", pw->pw_shell);
216			return (1);
217			}
218			if (!ok_shell(p, &t)) {
219			if (uid) {
220			warnx("%s: non-standard shell", p);
221			return (1);
222			} else
223			t = strdup(p);
224			}
225			if (!(pw->pw_shell = t)) {
226			warnx("can't save entry");
227			return (1);
228			}
229			return (0);
230			}