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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/dc/dc.c	Lines:	28	55	50.9 %
Date:	2017-11-07	Branches:	13	30	43.3 %


/*	$OpenBSD: dc.c,v 1.18 2016/07/17 17:30:47 otto Exp $	*/

/*
 * Copyright (c) 2003, Otto Moerbeek <otto@drijf.net>
 *
 * 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 <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "extern.h"

static __dead void	usage(void);

extern char		*__progname;

static __dead void
usage(void)
{
	(void)fprintf(stderr, "usage: %s [-x] [-e expression] [file]\n",
	    __progname);
	exit(1);
}

int
dc_main(int argc, char *argv[])
{
	int		ch;
	bool		extended_regs = false;
	FILE		*file;
	struct source	src;
	char		*buf, *p;
	struct stat	st;

	if ((buf = strdup("")) == NULL)
		err(1, NULL);
	/* accept and ignore a single dash to be 4.4BSD dc(1) compatible */
	optind = 1;
	optreset = 1;
	while ((ch = getopt(argc, argv, "e:x-")) != -1) {
		switch (ch) {
		case 'e':
			p = buf;
			if (asprintf(&buf, "%s %s", buf, optarg) == -1)
				err(1, NULL);
			free(p);
			break;
		case 'x':
			extended_regs = true;
			break;
		case '-':
			break;
		default:
			usage();
		}
	}
	argc -= optind;
	argv += optind;

	init_bmachine(extended_regs);
	(void)setvbuf(stdout, NULL, _IOLBF, 0);
	(void)setvbuf(stderr, NULL, _IOLBF, 0);

	if (argc > 1)
		usage();
	if (buf[0] != '\0') {
		src_setstring(&src, buf);
		reset_bmachine(&src);
		eval();
		free(buf);
		if (argc == 0)
			return (0);
	}
	if (argc == 1) {
		file = fopen(argv[0], "r");
		if (file == NULL)
			err(1, "cannot open file %s", argv[0]);

		if (pledge("stdio flock rpath cpath wpath", NULL) == -1)
			err(1, "pledge");

		if (fstat(fileno(file), &st) == -1)
			err(1, "%s", argv[0]);
		if (S_ISDIR(st.st_mode))
			errc(1, EISDIR, "%s", argv[0]);
		src_setstream(&src, file);
		reset_bmachine(&src);
		eval();
		(void)fclose(file);
		/*
		 * BSD and Solaris dc(1) continue with stdin after processing
		 * the file given as the argument. We follow GNU dc(1).
		 */
		 return (0);
	}

	if (pledge("stdio flock rpath cpath wpath", NULL) == -1)
		err(1, "pledge");

	src_setstream(&src, stdin);
	reset_bmachine(&src);
	eval();

	return (0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: dc.c,v 1.18 2016/07/17 17:30:47 otto Exp $ */
2
3			/*
4			* Copyright (c) 2003, Otto Moerbeek <otto@drijf.net>
5			*
6			* Permission to use, copy, modify, and distribute this software for any
7			* purpose with or without fee is hereby granted, provided that the above
8			* copyright notice and this permission notice appear in all copies.
9			*
10			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17			*/
18
19			#include <sys/stat.h>
20			#include <err.h>
21			#include <errno.h>
22			#include <stdlib.h>
23			#include <string.h>
24			#include <unistd.h>
25
26			#include "extern.h"
27
28			static __dead void usage(void);
29
30			extern char *__progname;
31
32			static __dead void
33			usage(void)
34			{
35			(void)fprintf(stderr, "usage: %s [-x] [-e expression] [file]\n",
36			__progname);
37			exit(1);
38			}
39
40			int
41			dc_main(int argc, char *argv[])
42			{
43			int ch;
44			bool extended_regs = false;
45			FILE *file;
46		486	struct source src;
47		243	char buf, p;
48		243	struct stat st;
49
50	✗✓	243	if ((buf = strdup("")) == NULL)
51			err(1, NULL);
52			/* accept and ignore a single dash to be 4.4BSD dc(1) compatible */
53		243	optind = 1;
54		243	optreset = 1;
55	✓✓	729	while ((ch = getopt(argc, argv, "e:x-")) != -1) {
56	✓✗✓✗	486	switch (ch) {
57			case 'e':
58			p = buf;
59			if (asprintf(&buf, "%s %s", buf, optarg) == -1)
60			err(1, NULL);
61			free(p);
62			break;
63			case 'x':
64			extended_regs = true;
65		243	break;
66			case '-':
67			break;
68			default:
69			usage();
70			}
71			}
72		243	argc -= optind;
73		243	argv += optind;
74
75		243	init_bmachine(extended_regs);
76		243	(void)setvbuf(stdout, NULL, _IOLBF, 0);
77		243	(void)setvbuf(stderr, NULL, _IOLBF, 0);
78
79	✗✓	243	if (argc > 1)
80			usage();
81	✗✓	243	if (buf[0] != '\0') {
82			src_setstring(&src, buf);
83			reset_bmachine(&src);
84			eval();
85			free(buf);
86			if (argc == 0)
87			return (0);
88			}
89	✓✗	243	if (argc == 1) {
90		243	file = fopen(argv[0], "r");
91	✗✓	243	if (file == NULL)
92			err(1, "cannot open file %s", argv[0]);
93
94	✗✓	243	if (pledge("stdio flock rpath cpath wpath", NULL) == -1)
95			err(1, "pledge");
96
97	✓✗✗✓	729	if (fstat(fileno(file), &st) == -1)
98			err(1, "%s", argv[0]);
99	✗✓	243	if (S_ISDIR(st.st_mode))
100			errc(1, EISDIR, "%s", argv[0]);
101		243	src_setstream(&src, file);
102		243	reset_bmachine(&src);
103		243	eval();
104		243	(void)fclose(file);
105			/*
106			* BSD and Solaris dc(1) continue with stdin after processing
107			* the file given as the argument. We follow GNU dc(1).
108			*/
109		243	return (0);
110			}
111
112			if (pledge("stdio flock rpath cpath wpath", NULL) == -1)
113			err(1, "pledge");
114
115			src_setstream(&src, stdin);
116			reset_bmachine(&src);
117			eval();
118
119			return (0);
120		180	}