Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/tee/tee.c	Lines:	35	51	68.6 %
Date:	2016-12-06	Branches:	20	31	64.5 %


/*	$OpenBSD: tee.c,v 1.10 2015/10/09 01:37:09 deraadt Exp $	*/
/*	$NetBSD: tee.c,v 1.5 1994/12/09 01:43:39 jtc Exp $	*/

/*
 * Copyright (c) 1988, 1993
 *	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 <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <err.h>

struct list {
	struct list *next;
	int fd;
	char *name;
};
struct list *head;

static void
add(int fd, char *name)
{
	struct list *p;

	if ((p = malloc(sizeof(*p))) == NULL)
		err(1, NULL);
	p->fd = fd;
	p->name = name;
	p->next = head;
	head = p;
}

int
main(int argc, char *argv[])
{
	struct list *p;
	int fd;
	ssize_t n, rval, wval;
	char *bp;
	int append, ch, exitval;
	char buf[8192];

	setlocale(LC_ALL, "");

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

	append = 0;
	while ((ch = getopt(argc, argv, "ai")) != -1) {
		switch(ch) {
		case 'a':
			append = 1;
			break;
		case 'i':
			(void)signal(SIGINT, SIG_IGN);
			break;
		case '?':
		default:
			(void)fprintf(stderr, "usage: tee [-ai] [file ...]\n");
			exit(1);
		}
	}
	argv += optind;
	argc -= optind;

	add(STDOUT_FILENO, "stdout");

	exitval = 0;
	while (*argv) {
		if ((fd = open(*argv, O_WRONLY | O_CREAT |
		    (append ? O_APPEND : O_TRUNC), DEFFILEMODE)) == -1) {
			warn("%s", *argv);
			exitval = 1;
		} else
			add(fd, *argv);
		argv++;
	}

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

	while ((rval = read(STDIN_FILENO, buf, sizeof(buf))) > 0) {
		for (p = head; p; p = p->next) {
			n = rval;
			bp = buf;
			do {
				if ((wval = write(p->fd, bp, n)) == -1) {
					warn("%s", p->name);
					exitval = 1;
					break;
				}
				bp += wval;
			} while (n -= wval);
		}
	}
	if (rval == -1) {
		warn("read");
		exitval = 1;
	}

	for (p = head; p; p = p->next) {
		if (close(p->fd) == -1) {
			warn("%s", p->name);
			exitval = 1;
		}
	}

	exit(exitval);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: tee.c,v 1.10 2015/10/09 01:37:09 deraadt Exp $ */
2			/* $NetBSD: tee.c,v 1.5 1994/12/09 01:43:39 jtc Exp $ */
3
4			/*
5			* Copyright (c) 1988, 1993
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 <sys/types.h>
34			#include <sys/stat.h>
35			#include <signal.h>
36			#include <errno.h>
37			#include <fcntl.h>
38			#include <unistd.h>
39			#include <stdio.h>
40			#include <stdlib.h>
41			#include <string.h>
42			#include <locale.h>
43			#include <err.h>
44
45			struct list {
46			struct list *next;
47			int fd;
48			char *name;
49			};
50			struct list *head;
51
52			static void
53			add(int fd, char *name)
54		1172	{
55			struct list *p;
56
57	✗✓	1172	if ((p = malloc(sizeof(*p))) == NULL)
58			err(1, NULL);
59		1172	p->fd = fd;
60		1172	p->name = name;
61		1172	p->next = head;
62		1172	head = p;
63		1172	}
64
65			int
66			main(int argc, char *argv[])
67		524	{
68			struct list *p;
69			int fd;
70			ssize_t n, rval, wval;
71			char *bp;
72			int append, ch, exitval;
73			char buf[8192];
74
75		524	setlocale(LC_ALL, "");
76
77	✗✓	524	if (pledge("stdio wpath cpath rpath", NULL) == -1)
78			err(1, "pledge");
79
80		524	append = 0;
81	✓✓	1572	while ((ch = getopt(argc, argv, "ai")) != -1) {
82	✓✗✗	524	switch(ch) {
83			case 'a':
84		524	append = 1;
85		524	break;
86			case 'i':
87			(void)signal(SIGINT, SIG_IGN);
88			break;
89			case '?':
90			default:
91			(void)fprintf(stderr, "usage: tee [-ai] [file ...]\n");
92			exit(1);
93			}
94			}
95		524	argv += optind;
96		524	argc -= optind;
97
98		524	add(STDOUT_FILENO, "stdout");
99
100		524	exitval = 0;
101	✓✓	1696	while (*argv) {
102	✓✗✗✓	648	if ((fd = open(*argv, O_WRONLY \| O_CREAT \|
103			(append ? O_APPEND : O_TRUNC), DEFFILEMODE)) == -1) {
104			warn("%s", *argv);
105			exitval = 1;
106			} else
107		648	add(fd, *argv);
108		648	argv++;
109			}
110
111	✗✓	524	if (pledge("stdio wpath cpath rpath", NULL) == -1)
112			err(1, "pledge");
113
114	✓✓	1048	while ((rval = read(STDIN_FILENO, buf, sizeof(buf))) > 0) {
115	✓✓	1696	for (p = head; p; p = p->next) {
116		1172	n = rval;
117		1172	bp = buf;
118			do {
119	✗✓	1172	if ((wval = write(p->fd, bp, n)) == -1) {
120			warn("%s", p->name);
121			exitval = 1;
122			break;
123			}
124		1172	bp += wval;
125	✗✓	1172	} while (n -= wval);
126			}
127			}
128	✗✓	524	if (rval == -1) {
129			warn("read");
130			exitval = 1;
131			}
132
133	✓✓	1696	for (p = head; p; p = p->next) {
134	✗✓	1172	if (close(p->fd) == -1) {
135			warn("%s", p->name);
136			exitval = 1;
137			}
138			}
139
140		524	exit(exitval);
141			}