Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/tee/tee.c	Lines:	30	43	69.8 %
Date:	2017-11-07	Branches:	19	29	65.5 %


/*	$OpenBSD: tee.c,v 1.12 2017/07/11 13:14:59 bluhm 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 <sys/queue.h>

#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

struct list {
	SLIST_ENTRY(list) next;
	int fd;
	char *name;
};
SLIST_HEAD(, 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;
	SLIST_INSERT_HEAD(&head, p, next);
}

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];

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

	SLIST_INIT(&head);

	append = 0;
	while ((ch = getopt(argc, argv, "ai")) != -1) {
		switch(ch) {
		case 'a':
			append = 1;
			break;
		case 'i':
			(void)signal(SIGINT, SIG_IGN);
			break;
		default:
			(void)fprintf(stderr, "usage: tee [-ai] [file ...]\n");
			return 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 flock rpath cpath wpath", NULL) == -1)
		err(1, "pledge");

	while ((rval = read(STDIN_FILENO, buf, sizeof(buf))) > 0) {
		SLIST_FOREACH(p, &head, 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;
	}

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

	return exitval;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: tee.c,v 1.12 2017/07/11 13:14:59 bluhm 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 <sys/queue.h>
36
37			#include <err.h>
38			#include <errno.h>
39			#include <fcntl.h>
40			#include <signal.h>
41			#include <stdio.h>
42			#include <stdlib.h>
43			#include <string.h>
44			#include <unistd.h>
45
46			struct list {
47			SLIST_ENTRY(list) next;
48			int fd;
49			char *name;
50			};
51			SLIST_HEAD(, list) head;
52
53			static void
54			add(int fd, char *name)
55			{
56			struct list *p;
57
58	✗✓	178052	if ((p = malloc(sizeof(*p))) == NULL)
59			err(1, NULL);
60		89026	p->fd = fd;
61		89026	p->name = name;
62		89026	SLIST_INSERT_HEAD(&head, p, next);
63		89026	}
64
65			int
66			main(int argc, char *argv[])
67			{
68			struct list *p;
69			int fd;
70			ssize_t n, rval, wval;
71			char *bp;
72			int append, ch, exitval;
73		86000	char buf[8192];
74
75	✗✓	43000	if (pledge("stdio wpath cpath flock rpath", NULL) == -1)
76			err(1, "pledge");
77
78		43000	SLIST_INIT(&head);
79
80			append = 0;
81	✓✓	128967	while ((ch = getopt(argc, argv, "ai")) != -1) {
82	✓✗✗	42967	switch(ch) {
83			case 'a':
84			append = 1;
85		42967	break;
86			case 'i':
87			(void)signal(SIGINT, SIG_IGN);
88			break;
89			default:
90			(void)fprintf(stderr, "usage: tee [-ai] [file ...]\n");
91			return 1;
92			}
93			}
94		43000	argv += optind;
95			argc -= optind;
96
97		43000	add(STDOUT_FILENO, "stdout");
98
99			exitval = 0;
100	✓✓	178052	while (*argv) {
101	✗✓	92052	if ((fd = open(*argv, O_WRONLY \| O_CREAT \|
102		92052	(append ? O_APPEND : O_TRUNC), DEFFILEMODE)) == -1) {
103			warn("%s", *argv);
104			exitval = 1;
105			} else
106		46026	add(fd, *argv);
107		46026	argv++;
108			}
109
110	✗✓	43000	if (pledge("stdio flock rpath cpath wpath", NULL) == -1)
111			err(1, "pledge");
112
113	✓✓	117983	while ((rval = read(STDIN_FILENO, buf, sizeof(buf))) > 0) {
114	✓✓	455950	SLIST_FOREACH(p, &head, next) {
115			n = rval;
116			bp = buf;
117		152992	do {
118	✗✓	152992	if ((wval = write(p->fd, bp, n)) == -1) {
119			warn("%s", p->name);
120			exitval = 1;
121			break;
122			}
123		152992	bp += wval;
124	✗✓	152992	} while (n -= wval);
125			}
126			}
127	✗✓	43000	if (rval == -1) {
128			warn("read");
129			exitval = 1;
130			}
131
132	✓✓	264052	SLIST_FOREACH(p, &head, next) {
133	✗✓	89026	if (close(p->fd) == -1) {
134			warn("%s", p->name);
135			exitval = 1;
136			}
137			}
138
139		43000	return exitval;
140		43000	}