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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/radiusctl/parser.c	Lines:	0	92	0.0 %
Date:	2017-11-13	Branches:	0	76	0.0 %


/*	$OpenBSD: parser.c,v 1.1 2015/07/21 04:06:04 yasuoka Exp $	*/

/*
 * Copyright (c) 2010 Reyk Floeter <reyk@vantronix.net>
 * Copyright (c) 2004 Esben Norby <norby@openbsd.org>
 * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "parser.h"

enum token_type {
	NOTOKEN,
	KEYWORD,
	HOSTNAME,
	SECRET,
	USERNAME,
	PASSWORD,
	PORT,
	METHOD,
	NAS_PORT,
	ENDTOKEN
};

struct token {
	enum token_type		 type;
	const char		*keyword;
	int			 value;
	const struct token	*next;
};

static struct parse_result res;

static const struct token t_test[];
static const struct token t_secret[];
static const struct token t_username[];
static const struct token t_test_opts[];
static const struct token t_password[];
static const struct token t_port[];
static const struct token t_method[];
static const struct token t_nas_port[];

static const struct token t_main[] = {
	{ KEYWORD,	"test",		TEST,		t_test },
	{ ENDTOKEN,	"",		NONE,		NULL }
};

static const struct token t_test[] = {
	{ HOSTNAME,	"",		NONE,		t_secret },
	{ ENDTOKEN,	"",		NONE,		NULL }
};

static const struct token t_secret[] = {
	{ SECRET,	"",		NONE,		t_username },
	{ ENDTOKEN,	"",		NONE,		NULL }
};

static const struct token t_username[] = {
	{ USERNAME,	"",		NONE,		t_test_opts },
	{ ENDTOKEN,	"",		NONE,		NULL }
};

static const struct token t_test_opts[] = {
	{ NOTOKEN,	"",		NONE,		NULL },
	{ KEYWORD,	"password",	NONE,		t_password },
	{ KEYWORD,	"port",		NONE,		t_port },
	{ KEYWORD,	"method",	NONE,		t_method },
	{ KEYWORD,	"nas-port",	NONE,		t_nas_port },
	{ ENDTOKEN,	"",		NONE,		NULL }
};

static const struct token t_password[] = {
	{ PASSWORD,	"",		NONE,		t_test_opts },
	{ ENDTOKEN,	"",		NONE,		NULL }
};

static const struct token t_port[] = {
	{ PORT,		"",		NONE,		t_test_opts },
	{ ENDTOKEN,	"",		NONE,		NULL }
};

static const struct token t_method[] = {
	{ METHOD,	"",		NONE,		t_test_opts },
	{ ENDTOKEN,	"",		NONE,		NULL }
};

static const struct token t_nas_port[] = {
	{ NAS_PORT,	"",		NONE,		t_test_opts },
	{ ENDTOKEN,	"",		NONE,		NULL }
};


static const struct token	*match_token(char *, const struct token []);
static void			 show_valid_args(const struct token []);

struct parse_result *
parse(int argc, char *argv[])
{
	const struct token	*table = t_main;
	const struct token	*match;

	bzero(&res, sizeof(res));

	while (argc >= 0) {
		if ((match = match_token(argv[0], table)) == NULL) {
			fprintf(stderr, "valid commands/args:\n");
			show_valid_args(table);
			return (NULL);
		}

		argc--;
		argv++;

		if (match->type == NOTOKEN || match->next == NULL)
			break;

		table = match->next;
	}

	if (argc > 0) {
		fprintf(stderr, "superfluous argument: %s\n", argv[0]);
		return (NULL);
	}

	return (&res);
}

static const struct token *
match_token(char *word, const struct token table[])
{
	u_int			 i, match = 0;
	const struct token	*t = NULL;
	long long		 num;
	const char		*errstr;

	for (i = 0; table[i].type != ENDTOKEN; i++) {
		switch (table[i].type) {
		case NOTOKEN:
			if (word == NULL || strlen(word) == 0) {
				match++;
				t = &table[i];
			}
			break;
		case KEYWORD:
			if (word != NULL && strncmp(word, table[i].keyword,
			    strlen(word)) == 0) {
				match++;
				t = &table[i];
				if (t->value)
					res.action = t->value;
			}
			break;
		case HOSTNAME:
			if (word == NULL)
				break;
			match++;
			res.hostname = word;
			t = &table[i];
			break;
		case SECRET:
			if (word == NULL)
				break;
			match++;
			res.secret = word;
			t = &table[i];
			break;
		case USERNAME:
			if (word == NULL)
				break;
			match++;
			res.username = word;
			t = &table[i];
			break;
		case PASSWORD:
			if (word == NULL)
				break;
			match++;
			res.password = word;
			t = &table[i];
			break;
		case PORT:
			if (word == NULL)
				break;
			num = strtonum(word, 1, UINT16_MAX, &errstr);
			if (errstr != NULL) {
				fprintf(stderr,
				    "invalid argument: %s is %s for \"port\"\n",
				    word, errstr);
				return (NULL);
			}
			match++;
			res.port = num;
			t = &table[i];
			break;
		case METHOD:
			if (word == NULL)
				break;
			if (strcasecmp(word, "pap") == 0)
				res.auth_method = PAP;
			else if (strcasecmp(word, "chap") == 0)
				res.auth_method = CHAP;
			else if (strcasecmp(word, "mschapv2") == 0)
				res.auth_method = MSCHAPV2;
			else {
				fprintf(stderr,
				    "invalid argument: %s for \"method\"\n",
				    word);
				return (NULL);
			}
			match++;
			t = &table[i];
			break;
		case NAS_PORT:
			if (word == NULL)
				break;
			num = strtonum(word, 0, 65535, &errstr);
			if (errstr != NULL) {
				fprintf(stderr,
				    "invalid argument: %s is %s for "
				    "\"nas-port\"\n", word, errstr);
				return (NULL);
			}
			match++;
			res.nas_port = num;
			t = &table[i];
			break;
		case ENDTOKEN:
			break;
		}
	}

	if (match != 1) {
		if (word == NULL)
			fprintf(stderr, "missing argument:\n");
		else if (match > 1)
			fprintf(stderr, "ambiguous argument: %s\n", word);
		else if (match < 1)
			fprintf(stderr, "unknown argument: %s\n", word);
		return (NULL);
	}

	return (t);
}

static void
show_valid_args(const struct token table[])
{
	int	i;

	for (i = 0; table[i].type != ENDTOKEN; i++) {
		switch (table[i].type) {
		case NOTOKEN:
			fprintf(stderr, "  <cr>\n");
			break;
		case KEYWORD:
			fprintf(stderr, "  %s\n", table[i].keyword);
			break;
		case HOSTNAME:
			fprintf(stderr, "  <hostname>\n");
			break;
		case SECRET:
			fprintf(stderr, "  <radius secret>\n");
			break;
		case USERNAME:
			fprintf(stderr, "  <username>\n");
			break;
		case PASSWORD:
			fprintf(stderr, "  <password>\n");
			break;
		case PORT:
			fprintf(stderr, "  <port number>\n");
			break;
		case METHOD:
			fprintf(stderr, "  <auth method (pap, chap, "
			    "mschapv2)>\n");
			break;
		case NAS_PORT:
			fprintf(stderr, "  <nas-port (0-65535)>\n");
			break;
		case ENDTOKEN:
			break;
		}
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: parser.c,v 1.1 2015/07/21 04:06:04 yasuoka Exp $ */
2
3			/*
4			* Copyright (c) 2010 Reyk Floeter <reyk@vantronix.net>
5			* Copyright (c) 2004 Esben Norby <norby@openbsd.org>
6			* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
7			*
8			* Permission to use, copy, modify, and distribute this software for any
9			* purpose with or without fee is hereby granted, provided that the above
10			* copyright notice and this permission notice appear in all copies.
11			*
12			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19			*/
20
21			#include <stdint.h>
22			#include <stdio.h>
23			#include <stdlib.h>
24			#include <string.h>
25
26			#include "parser.h"
27
28			enum token_type {
29			NOTOKEN,
30			KEYWORD,
31			HOSTNAME,
32			SECRET,
33			USERNAME,
34			PASSWORD,
35			PORT,
36			METHOD,
37			NAS_PORT,
38			ENDTOKEN
39			};
40
41			struct token {
42			enum token_type type;
43			const char *keyword;
44			int value;
45			const struct token *next;
46			};
47
48			static struct parse_result res;
49
50			static const struct token t_test[];
51			static const struct token t_secret[];
52			static const struct token t_username[];
53			static const struct token t_test_opts[];
54			static const struct token t_password[];
55			static const struct token t_port[];
56			static const struct token t_method[];
57			static const struct token t_nas_port[];
58
59			static const struct token t_main[] = {
60			{ KEYWORD, "test", TEST, t_test },
61			{ ENDTOKEN, "", NONE, NULL }
62			};
63
64			static const struct token t_test[] = {
65			{ HOSTNAME, "", NONE, t_secret },
66			{ ENDTOKEN, "", NONE, NULL }
67			};
68
69			static const struct token t_secret[] = {
70			{ SECRET, "", NONE, t_username },
71			{ ENDTOKEN, "", NONE, NULL }
72			};
73
74			static const struct token t_username[] = {
75			{ USERNAME, "", NONE, t_test_opts },
76			{ ENDTOKEN, "", NONE, NULL }
77			};
78
79			static const struct token t_test_opts[] = {
80			{ NOTOKEN, "", NONE, NULL },
81			{ KEYWORD, "password", NONE, t_password },
82			{ KEYWORD, "port", NONE, t_port },
83			{ KEYWORD, "method", NONE, t_method },
84			{ KEYWORD, "nas-port", NONE, t_nas_port },
85			{ ENDTOKEN, "", NONE, NULL }
86			};
87
88			static const struct token t_password[] = {
89			{ PASSWORD, "", NONE, t_test_opts },
90			{ ENDTOKEN, "", NONE, NULL }
91			};
92
93			static const struct token t_port[] = {
94			{ PORT, "", NONE, t_test_opts },
95			{ ENDTOKEN, "", NONE, NULL }
96			};
97
98			static const struct token t_method[] = {
99			{ METHOD, "", NONE, t_test_opts },
100			{ ENDTOKEN, "", NONE, NULL }
101			};
102
103			static const struct token t_nas_port[] = {
104			{ NAS_PORT, "", NONE, t_test_opts },
105			{ ENDTOKEN, "", NONE, NULL }
106			};
107
108
109			static const struct token match_token(char , const struct token []);
110			static void show_valid_args(const struct token []);
111
112			struct parse_result *
113			parse(int argc, char *argv[])
114			{
115			const struct token *table = t_main;
116			const struct token *match;
117
118			bzero(&res, sizeof(res));
119
120			while (argc >= 0) {
121			if ((match = match_token(argv[0], table)) == NULL) {
122			fprintf(stderr, "valid commands/args:\n");
123			show_valid_args(table);
124			return (NULL);
125			}
126
127			argc--;
128			argv++;
129
130			if (match->type == NOTOKEN \|\| match->next == NULL)
131			break;
132
133			table = match->next;
134			}
135
136			if (argc > 0) {
137			fprintf(stderr, "superfluous argument: %s\n", argv[0]);
138			return (NULL);
139			}
140
141			return (&res);
142			}
143
144			static const struct token *
145			match_token(char *word, const struct token table[])
146			{
147			u_int i, match = 0;
148			const struct token *t = NULL;
149			long long num;
150			const char *errstr;
151
152			for (i = 0; table[i].type != ENDTOKEN; i++) {
153			switch (table[i].type) {
154			case NOTOKEN:
155			if (word == NULL \|\| strlen(word) == 0) {
156			match++;
157			t = &table[i];
158			}
159			break;
160			case KEYWORD:
161			if (word != NULL && strncmp(word, table[i].keyword,
162			strlen(word)) == 0) {
163			match++;
164			t = &table[i];
165			if (t->value)
166			res.action = t->value;
167			}
168			break;
169			case HOSTNAME:
170			if (word == NULL)
171			break;
172			match++;
173			res.hostname = word;
174			t = &table[i];
175			break;
176			case SECRET:
177			if (word == NULL)
178			break;
179			match++;
180			res.secret = word;
181			t = &table[i];
182			break;
183			case USERNAME:
184			if (word == NULL)
185			break;
186			match++;
187			res.username = word;
188			t = &table[i];
189			break;
190			case PASSWORD:
191			if (word == NULL)
192			break;
193			match++;
194			res.password = word;
195			t = &table[i];
196			break;
197			case PORT:
198			if (word == NULL)
199			break;
200			num = strtonum(word, 1, UINT16_MAX, &errstr);
201			if (errstr != NULL) {
202			fprintf(stderr,
203			"invalid argument: %s is %s for \"port\"\n",
204			word, errstr);
205			return (NULL);
206			}
207			match++;
208			res.port = num;
209			t = &table[i];
210			break;
211			case METHOD:
212			if (word == NULL)
213			break;
214			if (strcasecmp(word, "pap") == 0)
215			res.auth_method = PAP;
216			else if (strcasecmp(word, "chap") == 0)
217			res.auth_method = CHAP;
218			else if (strcasecmp(word, "mschapv2") == 0)
219			res.auth_method = MSCHAPV2;
220			else {
221			fprintf(stderr,
222			"invalid argument: %s for \"method\"\n",
223			word);
224			return (NULL);
225			}
226			match++;
227			t = &table[i];
228			break;
229			case NAS_PORT:
230			if (word == NULL)
231			break;
232			num = strtonum(word, 0, 65535, &errstr);
233			if (errstr != NULL) {
234			fprintf(stderr,
235			"invalid argument: %s is %s for "
236			"\"nas-port\"\n", word, errstr);
237			return (NULL);
238			}
239			match++;
240			res.nas_port = num;
241			t = &table[i];
242			break;
243			case ENDTOKEN:
244			break;
245			}
246			}
247
248			if (match != 1) {
249			if (word == NULL)
250			fprintf(stderr, "missing argument:\n");
251			else if (match > 1)
252			fprintf(stderr, "ambiguous argument: %s\n", word);
253			else if (match < 1)
254			fprintf(stderr, "unknown argument: %s\n", word);
255			return (NULL);
256			}
257
258			return (t);
259			}
260
261			static void
262			show_valid_args(const struct token table[])
263			{
264			int i;
265
266			for (i = 0; table[i].type != ENDTOKEN; i++) {
267			switch (table[i].type) {
268			case NOTOKEN:
269			fprintf(stderr, " <cr>\n");
270			break;
271			case KEYWORD:
272			fprintf(stderr, " %s\n", table[i].keyword);
273			break;
274			case HOSTNAME:
275			fprintf(stderr, " <hostname>\n");
276			break;
277			case SECRET:
278			fprintf(stderr, " <radius secret>\n");
279			break;
280			case USERNAME:
281			fprintf(stderr, " <username>\n");
282			break;
283			case PASSWORD:
284			fprintf(stderr, " <password>\n");
285			break;
286			case PORT:
287			fprintf(stderr, " <port number>\n");
288			break;
289			case METHOD:
290			fprintf(stderr, " <auth method (pap, chap, "
291			"mschapv2)>\n");
292			break;
293			case NAS_PORT:
294			fprintf(stderr, " <nas-port (0-65535)>\n");
295			break;
296			case ENDTOKEN:
297			break;
298			}
299			}
300			}