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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/pr/egetopt.c	Lines:	0	66	0.0 %
Date:	2016-12-06	Branches:	0	68	0.0 %


/*	$OpenBSD: egetopt.c,v 1.9 2013/11/26 13:19:07 deraadt Exp $	*/

/*-
 * Copyright (c) 1991 Keith Muller.
 * Copyright (c) 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Keith Muller of the University of California, San Diego.
 *
 * 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 <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "extern.h"

/*
 * egetopt:	get option letter from argument vector (an extended
 *		version of getopt).
 *
 * Non standard additions to the ostr specs are:
 * 1) '?': immediate value following arg is optional (no white space
 *    between the arg and the value)
 * 2) '#': +/- followed by a number (with an optional sign but
 *    no white space between the arg and the number). The - may be
 *    combined with other options, but the + cannot.
 */

int	eopterr = 1;		/* if error message should be printed */
int	eoptind = 1;		/* index into parent argv vector */
int	eoptopt;		/* character checked for validity */
char	*eoptarg;		/* argument associated with option */

#define	BADCH	(int)'?'
#define	EMSG	""

int
egetopt(int nargc, char * const *nargv, const char *ostr)
{
	static char *place = EMSG;	/* option letter processing */
	char *oli;			/* option letter list index */
	static int delim;		/* which option delimiter */
	char *p;
	static char savec = '\0';

	if (savec != '\0') {
		*place = savec;
		savec = '\0';
	}

	if (!*place) {
		/*
		 * update scanning pointer
		 */
		if ((eoptind >= nargc) ||
		    ((*(place = nargv[eoptind]) != '-') && (*place != '+'))) {
			place = EMSG;
			return (-1);
		}

		delim = (int)*place;
		if (place[1] && *++place == '-' && !place[1]) {
			/*
			 * found "--"
			 */
			++eoptind;
			place = EMSG;
			return (-1);
		}
	}

	/*
	 * check option letter
	 */
	if ((eoptopt = (int)*place++) == (int)':' || (eoptopt == (int)'?') ||
	    !(oli = strchr(ostr, eoptopt))) {
		/*
		 * if the user didn't specify '-' as an option,
		 * assume it means EOF when by itself.
		 */
		if ((eoptopt == (int)'-') && !*place)
			return (-1);
		if (strchr(ostr, '#') && (isdigit((unsigned char)eoptopt) ||
		    (((eoptopt == (int)'-') || (eoptopt == (int)'+')) &&
		      isdigit((unsigned char)*place)))) {
			/*
			 * # option: +/- with a number is ok
			 */
			for (p = place; *p != '\0'; ++p) {
				if (!isdigit((unsigned char)*p))
					break;
			}
			eoptarg = place-1;

			if (*p == '\0') {
				place = EMSG;
				++eoptind;
			} else {
				place = p;
				savec = *p;
				*place = '\0';
			}
			return (delim);
		}

		if (!*place)
			++eoptind;
		if (eopterr) {
			if (!(p = strrchr(*nargv, '/')))
				p = *nargv;
			else
				++p;
			(void)fprintf(stderr, "%s: illegal option -- %c\n",
			    p, eoptopt);
		}
		return (BADCH);
	}
	if (delim == (int)'+') {
		/*
		 * '+' is only allowed with numbers
		 */
		if (!*place)
			++eoptind;
		if (eopterr) {
			if (!(p = strrchr(*nargv, '/')))
				p = *nargv;
			else
				++p;
			(void)fprintf(stderr,
				"%s: illegal '+' delimiter with option -- %c\n",
				p, eoptopt);
		}
		return (BADCH);
	}
	++oli;
	if ((*oli != ':') && (*oli != '?')) {
		/*
		 * don't need argument
		 */
		eoptarg = NULL;
		if (!*place)
			++eoptind;
		return (eoptopt);
	}

	if (*place) {
		/*
		 * no white space
		 */
		eoptarg = place;
	} else if (*oli == '?') {
		/*
		 * no arg, but NOT required
		 */
		eoptarg = NULL;
	} else if (nargc <= ++eoptind) {
		/*
		 * no arg, but IS required
		 */
		place = EMSG;
		if (eopterr) {
			if (!(p = strrchr(*nargv, '/')))
				p = *nargv;
			else
				++p;
			(void)fprintf(stderr,
			    "%s: option requires an argument -- %c\n", p,
			    eoptopt);
		}
		return (BADCH);
	} else {
		/*
		 * arg has white space
		 */
		eoptarg = nargv[eoptind];
	}
	place = EMSG;
	++eoptind;
	return (eoptopt);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: egetopt.c,v 1.9 2013/11/26 13:19:07 deraadt Exp $ */
2
3			/*-
4			* Copyright (c) 1991 Keith Muller.
5			* Copyright (c) 1993
6			* The Regents of the University of California. All rights reserved.
7			*
8			* This code is derived from software contributed to Berkeley by
9			* Keith Muller of the University of California, San Diego.
10			*
11			* Redistribution and use in source and binary forms, with or without
12			* modification, are permitted provided that the following conditions
13			* are met:
14			* 1. Redistributions of source code must retain the above copyright
15			* notice, this list of conditions and the following disclaimer.
16			* 2. Redistributions in binary form must reproduce the above copyright
17			* notice, this list of conditions and the following disclaimer in the
18			* documentation and/or other materials provided with the distribution.
19			* 3. Neither the name of the University nor the names of its contributors
20			* may be used to endorse or promote products derived from this software
21			* without specific prior written permission.
22			*
23			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33			* SUCH DAMAGE.
34			*/
35
36			#include <ctype.h>
37			#include <stdio.h>
38			#include <stdlib.h>
39			#include <string.h>
40
41			#include "extern.h"
42
43			/*
44			* egetopt: get option letter from argument vector (an extended
45			* version of getopt).
46			*
47			* Non standard additions to the ostr specs are:
48			* 1) '?': immediate value following arg is optional (no white space
49			* between the arg and the value)
50			* 2) '#': +/- followed by a number (with an optional sign but
51			* no white space between the arg and the number). The - may be
52			* combined with other options, but the + cannot.
53			*/
54
55			int eopterr = 1; /* if error message should be printed */
56			int eoptind = 1; /* index into parent argv vector */
57			int eoptopt; /* character checked for validity */
58			char eoptarg; / argument associated with option */
59
60			#define BADCH (int)'?'
61			#define EMSG ""
62
63			int
64			egetopt(int nargc, char * const nargv, const char ostr)
65			{
66			static char place = EMSG; / option letter processing */
67			char oli; / option letter list index */
68			static int delim; /* which option delimiter */
69			char *p;
70			static char savec = '\0';
71
72			if (savec != '\0') {
73			*place = savec;
74			savec = '\0';
75			}
76
77			if (!*place) {
78			/*
79			* update scanning pointer
80			*/
81			if ((eoptind >= nargc) \|\|
82			(((place = nargv[eoptind]) != '-') && (place != '+'))) {
83			place = EMSG;
84			return (-1);
85			}
86
87			delim = (int)*place;
88			if (place[1] && *++place == '-' && !place[1]) {
89			/*
90			* found "--"
91			*/
92			++eoptind;
93			place = EMSG;
94			return (-1);
95			}
96			}
97
98			/*
99			* check option letter
100			*/
101			if ((eoptopt = (int)*place++) == (int)':' \|\| (eoptopt == (int)'?') \|\|
102			!(oli = strchr(ostr, eoptopt))) {
103			/*
104			* if the user didn't specify '-' as an option,
105			* assume it means EOF when by itself.
106			*/
107			if ((eoptopt == (int)'-') && !*place)
108			return (-1);
109			if (strchr(ostr, '#') && (isdigit((unsigned char)eoptopt) \|\|
110			(((eoptopt == (int)'-') \|\| (eoptopt == (int)'+')) &&
111			isdigit((unsigned char)*place)))) {
112			/*
113			* # option: +/- with a number is ok
114			*/
115			for (p = place; *p != '\0'; ++p) {
116			if (!isdigit((unsigned char)*p))
117			break;
118			}
119			eoptarg = place-1;
120
121			if (*p == '\0') {
122			place = EMSG;
123			++eoptind;
124			} else {
125			place = p;
126			savec = *p;
127			*place = '\0';
128			}
129			return (delim);
130			}
131
132			if (!*place)
133			++eoptind;
134			if (eopterr) {
135			if (!(p = strrchr(*nargv, '/')))
136			p = *nargv;
137			else
138			++p;
139			(void)fprintf(stderr, "%s: illegal option -- %c\n",
140			p, eoptopt);
141			}
142			return (BADCH);
143			}
144			if (delim == (int)'+') {
145			/*
146			* '+' is only allowed with numbers
147			*/
148			if (!*place)
149			++eoptind;
150			if (eopterr) {
151			if (!(p = strrchr(*nargv, '/')))
152			p = *nargv;
153			else
154			++p;
155			(void)fprintf(stderr,
156			"%s: illegal '+' delimiter with option -- %c\n",
157			p, eoptopt);
158			}
159			return (BADCH);
160			}
161			++oli;
162			if ((oli != ':') && (oli != '?')) {
163			/*
164			* don't need argument
165			*/
166			eoptarg = NULL;
167			if (!*place)
168			++eoptind;
169			return (eoptopt);
170			}
171
172			if (*place) {
173			/*
174			* no white space
175			*/
176			eoptarg = place;
177			} else if (*oli == '?') {
178			/*
179			* no arg, but NOT required
180			*/
181			eoptarg = NULL;
182			} else if (nargc <= ++eoptind) {
183			/*
184			* no arg, but IS required
185			*/
186			place = EMSG;
187			if (eopterr) {
188			if (!(p = strrchr(*nargv, '/')))
189			p = *nargv;
190			else
191			++p;
192			(void)fprintf(stderr,
193			"%s: option requires an argument -- %c\n", p,
194			eoptopt);
195			}
196			return (BADCH);
197			} else {
198			/*
199			* arg has white space
200			*/
201			eoptarg = nargv[eoptind];
202			}
203			place = EMSG;
204			++eoptind;
205			return (eoptopt);
206			}