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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/rdist/lookup.c	Lines:	0	50	0.0 %
Date:	2017-11-13	Branches:	0	39	0.0 %


/*	$OpenBSD: lookup.c,v 1.15 2015/01/20 09:00:16 guenther Exp $	*/

/*
 * Copyright (c) 1983 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 <string.h>

#include "client.h"

	/* symbol types */
#define VAR	1
#define CONST	2

struct syment {
	int	s_type;
	char	*s_name;
	struct	namelist *s_value;
	struct	syment *s_next;
};

static struct syment *hashtab[HASHSIZE];

/*
 * Define a variable from a command line argument.
 */
void
define(char *name)
{
	char *cp, *s;
	struct namelist *nl;
	struct namelist *value;

	debugmsg(DM_CALL, "define(%s)", name);

	cp = strchr(name, '=');
	if (cp == NULL)
		value = NULL;
	else if (cp[1] == '\0') {
		*cp = '\0';
		value = NULL;
	} else if (cp[1] != '(') {
		*cp++ = '\0';
		value = makenl(cp);
	} else {
		value = NULL;
		nl = NULL;
		*cp++ = '\0';
		do
			cp++;
		while (*cp == ' ' || *cp == '\t');
		for (s = cp; ; s++) {
			switch (*s) {
			case ')':
				*s = '\0';
			case '\0':
				break;
			case ' ':
			case '\t':
				*s++ = '\0';
				while (*s == ' ' || *s == '\t')
					s++;
				if (*s == ')')
					*s = '\0';
				break;
			default:
				continue;
			}
			if (nl == NULL)
				value = nl = makenl(cp);
			else {
				nl->n_next = makenl(cp);
				nl = nl->n_next;
			}
			if (*s == '\0')
				break;
			cp = s;
		}
	}
	(void) lookup(name, REPLACE, value);
}

/*
 * Lookup name in the table and return a pointer to it.
 * LOOKUP - just do lookup, return NULL if not found.
 * INSERT - insert name with value, error if already defined.
 * REPLACE - insert or replace name with value.
 */

struct namelist *
lookup(char *name, int action, struct namelist *value)
{
	unsigned int n;
	char *cp;
	struct syment *s;
	char ebuf[BUFSIZ];

	debugmsg(DM_CALL, "lookup(%s, %d, %p)", name, action, value);

	n = 0;
	for (cp = name; *cp; )
		n += *cp++;
	n %= HASHSIZE;

	for (s = hashtab[n]; s != NULL; s = s->s_next) {
		if (strcmp(name, s->s_name))
			continue;
		if (action != LOOKUP) {
			if (action != INSERT || s->s_type != CONST) {
				(void) snprintf(ebuf, sizeof(ebuf),
					        "%.*s redefined",
					        (int)(sizeof(ebuf) -
					        sizeof(" redefined")), name);
				yyerror(ebuf);
			}
		}
		return(s->s_value);
	}

	if (action == LOOKUP) {
		(void) snprintf(ebuf, sizeof(ebuf), "%.*s undefined",
			        (int)(sizeof(ebuf) - sizeof(" undefined")),
				name);
		yyerror(ebuf);
		return(NULL);
	}

	s = ALLOC(syment);
	s->s_next = hashtab[n];
	hashtab[n] = s;
	s->s_type = action == INSERT ? VAR : CONST;
	s->s_name = name;
	s->s_value = value;

	return(value);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: lookup.c,v 1.15 2015/01/20 09:00:16 guenther Exp $ */
2
3			/*
4			* Copyright (c) 1983 Regents of the University of California.
5			* All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that the following conditions
9			* are met:
10			* 1. Redistributions of source code must retain the above copyright
11			* notice, this list of conditions and the following disclaimer.
12			* 2. Redistributions in binary form must reproduce the above copyright
13			* notice, this list of conditions and the following disclaimer in the
14			* documentation and/or other materials provided with the distribution.
15			* 3. Neither the name of the University nor the names of its contributors
16			* may be used to endorse or promote products derived from this software
17			* without specific prior written permission.
18			*
19			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29			* SUCH DAMAGE.
30			*/
31
32			#include <string.h>
33
34			#include "client.h"
35
36			/* symbol types */
37			#define VAR 1
38			#define CONST 2
39
40			struct syment {
41			int s_type;
42			char *s_name;
43			struct namelist *s_value;
44			struct syment *s_next;
45			};
46
47			static struct syment *hashtab[HASHSIZE];
48
49			/*
50			* Define a variable from a command line argument.
51			*/
52			void
53			define(char *name)
54			{
55			char cp, s;
56			struct namelist *nl;
57			struct namelist *value;
58
59			debugmsg(DM_CALL, "define(%s)", name);
60
61			cp = strchr(name, '=');
62			if (cp == NULL)
63			value = NULL;
64			else if (cp[1] == '\0') {
65			*cp = '\0';
66			value = NULL;
67			} else if (cp[1] != '(') {
68			*cp++ = '\0';
69			value = makenl(cp);
70			} else {
71			value = NULL;
72			nl = NULL;
73			*cp++ = '\0';
74			do
75			cp++;
76			while (cp == ' ' \|\| cp == '\t');
77			for (s = cp; ; s++) {
78			switch (*s) {
79			case ')':
80			*s = '\0';
81			case '\0':
82			break;
83			case ' ':
84			case '\t':
85			*s++ = '\0';
86			while (s == ' ' \|\| s == '\t')
87			s++;
88			if (*s == ')')
89			*s = '\0';
90			break;
91			default:
92			continue;
93			}
94			if (nl == NULL)
95			value = nl = makenl(cp);
96			else {
97			nl->n_next = makenl(cp);
98			nl = nl->n_next;
99			}
100			if (*s == '\0')
101			break;
102			cp = s;
103			}
104			}
105			(void) lookup(name, REPLACE, value);
106			}
107
108			/*
109			* Lookup name in the table and return a pointer to it.
110			* LOOKUP - just do lookup, return NULL if not found.
111			* INSERT - insert name with value, error if already defined.
112			* REPLACE - insert or replace name with value.
113			*/
114
115			struct namelist *
116			lookup(char name, int action, struct namelist value)
117			{
118			unsigned int n;
119			char *cp;
120			struct syment *s;
121			char ebuf[BUFSIZ];
122
123			debugmsg(DM_CALL, "lookup(%s, %d, %p)", name, action, value);
124
125			n = 0;
126			for (cp = name; *cp; )
127			n += *cp++;
128			n %= HASHSIZE;
129
130			for (s = hashtab[n]; s != NULL; s = s->s_next) {
131			if (strcmp(name, s->s_name))
132			continue;
133			if (action != LOOKUP) {
134			if (action != INSERT \|\| s->s_type != CONST) {
135			(void) snprintf(ebuf, sizeof(ebuf),
136			"%.*s redefined",
137			(int)(sizeof(ebuf) -
138			sizeof(" redefined")), name);
139			yyerror(ebuf);
140			}
141			}
142			return(s->s_value);
143			}
144
145			if (action == LOOKUP) {
146			(void) snprintf(ebuf, sizeof(ebuf), "%.*s undefined",
147			(int)(sizeof(ebuf) - sizeof(" undefined")),
148			name);
149			yyerror(ebuf);
150			return(NULL);
151			}
152
153			s = ALLOC(syment);
154			s->s_next = hashtab[n];
155			hashtab[n] = s;
156			s->s_type = action == INSERT ? VAR : CONST;
157			s->s_name = name;
158			s->s_value = value;
159
160			return(value);
161			}