Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/tcpdump/util.c	Lines:	0	130	0.0 %
Date:	2017-11-07	Branches:	0	114	0.0 %


/*	$OpenBSD: util.c,v 1.27 2015/11/16 00:16:39 mmcc Exp $	*/

/*
 * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996, 1997
 *	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: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the University of California,
 * Lawrence Berkeley Laboratory and its contributors.'' 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#include <sys/types.h>
#include <sys/time.h>
#include <sys/file.h>
#include <sys/limits.h>
#include <sys/stat.h>

#include <ctype.h>
#include <err.h>
#include <errno.h>
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include <pcap.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#ifdef TIME_WITH_SYS_TIME
#include <time.h>
#endif
#include <unistd.h>

#include "interface.h"
#include "privsep.h"
/*
 * Print out a filename (or other ascii string).
 * If ep is NULL, assume no truncation check is needed.
 * Return true if truncated.
 */
int
fn_print(const u_char *s, const u_char *ep)
{
	int ret;
	u_char c;

	ret = 1;			/* assume truncated */
	while (ep == NULL || s < ep) {
		c = *s++;
		if (c == '\0') {
			ret = 0;
			break;
		}
		if (!isascii(c)) {
			c = toascii(c);
			putchar('M');
			putchar('-');
		}
		if (!isprint(c)) {
			c ^= 0x40;	/* DEL to ?, others to alpha */
			putchar('^');
		}
		putchar(c);
	}
	return(ret);
}

/*
 * Print out a counted filename (or other ascii string).
 * If ep is NULL, assume no truncation check is needed.
 * Return true if truncated.
 */
int
fn_printn(const u_char *s, u_int n, const u_char *ep)
{
	int ret;
	u_char c;

	ret = 1;			/* assume truncated */
	while (ep == NULL || s < ep) {
		if (n-- <= 0) {
			ret = 0;
			break;
		}
		c = *s++;
		if (!isascii(c)) {
			c = toascii(c);
			putchar('M');
			putchar('-');
		}
		if (!isprint(c)) {
			c ^= 0x40;	/* DEL to ?, others to alpha */
			putchar('^');
		}
		putchar(c);
	}
	return(ret);
}

/*
 * Print the timestamp
 */
void
ts_print(const struct bpf_timeval *tvp)
{
	int s;
#define TSBUFLEN 32
	static char buf[TSBUFLEN];
	static struct bpf_timeval last;
	struct timeval diff;
	time_t t;

	if (Iflag && device)
		(void)printf("%s ", device);
	switch(tflag){
	case 0:
		break;
	case -1:
		/* Unix timeval style */
		(void)printf("%u.%06u ",
		    (u_int32_t)tvp->tv_sec, (u_int32_t)tvp->tv_usec);
		break;
	case -2:
		t=tvp->tv_sec;
		strftime(buf, TSBUFLEN, "%b %d %T", priv_localtime(&t));
		printf("%s.%06u ", buf, (u_int32_t)tvp->tv_usec);
		break;
	case -3:
	case -4:
		/* time since first/last frame */
		timersub(tvp, &last, &diff);
		(void)printf("%u.%06u ",
		    (u_int32_t)diff.tv_sec, (u_int32_t)diff.tv_usec);
		if (tflag == -3 || (last.tv_sec == 0 && last.tv_usec == 0))
			last = *tvp;
		break;
	default:
		/* Default */
		s = (tvp->tv_sec + thiszone) % 86400;
		(void)printf("%02d:%02d:%02d.%06u ",
		    s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)tvp->tv_usec);
		break;
	}
}

/*
 * Print a relative number of seconds (e.g. hold time, prune timer)
 * in the form 5m1s.  This does no truncation, so 32230861 seconds
 * is represented as 1y1w1d1h1m1s.
 */
void
relts_print(int secs)
{
	static char *lengths[] = {"y", "w", "d", "h", "m", "s"};
	static int seconds[] = {31536000, 604800, 86400, 3600, 60, 1};
	char **l = lengths;
	int *s = seconds;

	if (secs <= 0) {
		(void)printf("0s");
		return;
	}
	while (secs > 0) {
		if (secs >= *s) {
			(void)printf("%d%s", secs / *s, *l);
			secs -= (secs / *s) * *s;
		}
		s++;
		l++;
	}
}

/*
 * Convert a token value to a string; use "fmt" if not found.
 */
const char *
tok2str(const struct tok *lp, const char *fmt, int v)
{
	static char buf[128];

	while (lp->s != NULL) {
		if (lp->v == v)
			return (lp->s);
		++lp;
	}
	if (fmt == NULL)
		fmt = "#%d";
	(void)snprintf(buf, sizeof(buf), fmt, v);
	return (buf);
}


__dead void
error(const char *fmt, ...)
{
	va_list ap;

	(void)fprintf(stderr, "%s: ", program_name);
	va_start(ap, fmt);
	(void)vfprintf(stderr, fmt, ap);
	va_end(ap);
	(void)fputc('\n', stderr);
	exit(1);
	/* NOTREACHED */
}

void
warning(const char *fmt, ...)
{
	va_list ap;

	(void)fprintf(stderr, "%s: WARNING: ", program_name);
	va_start(ap, fmt);
	(void)vfprintf(stderr, fmt, ap);
	va_end(ap);
	(void)fputc('\n', stderr);
}


/*
 * Copy arg vector into a new buffer, concatenating arguments with spaces.
 */
char *
copy_argv(char * const *argv)
{
	size_t len = 0, n;
	char *buf;

	if (argv == NULL)
		return (NULL);

	for (n = 0; argv[n]; n++)
		len += strlen(argv[n])+1;
	if (len == 0)
		return (NULL);

	buf = malloc(len);
	if (buf == NULL)
		return (NULL);

	strlcpy(buf, argv[0], len);
	for (n = 1; argv[n]; n++) {
		strlcat(buf, " ", len);
		strlcat(buf, argv[n], len);
	}
	return (buf);
}

char *
read_infile(char *fname)
{
	struct stat	 buf;
	int		 fd;
	ssize_t		 cc;
	size_t		 bs;
	char		*cp;

	fd = open(fname, O_RDONLY);
	if (fd < 0)
		error("can't open %s: %s", fname, pcap_strerror(errno));

	if (fstat(fd, &buf) < 0)
		error("can't stat %s: %s", fname, pcap_strerror(errno));

	if (buf.st_size >= SSIZE_MAX)
		error("file too long");

	bs = buf.st_size;
	cp = malloc(bs + 1);
	if (cp == NULL)
		err(1, NULL);
	cc = read(fd, cp, bs);
	if (cc == -1)
		error("read %s: %s", fname, pcap_strerror(errno));
	if (cc != bs)
		error("short read %s (%ld != %lu)", fname, (long)cc,
		    (unsigned long)bs);
	cp[bs] = '\0';
	close(fd);

	return (cp);
}

void
safeputs(const char *s)
{
	while (*s) {
		safeputchar(*s);
		s++;
	}
}

void
safeputchar(int c)
{
	unsigned char ch;

	ch = (unsigned char)(c & 0xff);
	if (c < 0x80 && isprint(c))
		printf("%c", c & 0xff);
	else
		printf("\\%03o", c & 0xff);
}

/*
 * Print a value a la the %b format of the kernel's printf
 * (from sbin/ifconfig/ifconfig.c)
 */
void
printb(char *s, unsigned short v, char *bits)
{
	int i, any = 0;
	char c;

	if (bits && *bits == 8)
		printf("%s=%o", s, v);
	else
		printf("%s=%x", s, v);

	if (bits) {
		bits++;
		putchar('<');
		while ((i = *bits++)) {
			if (v & (1 << (i-1))) {
				if (any)
					putchar(',');
				any = 1;
				for (; (c = *bits) > 32; bits++)
					putchar(c);
			} else
				for (; *bits > 32; bits++)
					;
		}
		putchar('>');
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: util.c,v 1.27 2015/11/16 00:16:39 mmcc Exp $ */
2
3			/*
4			* Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996, 1997
5			* The Regents of the University of California. All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that: (1) source code distributions
9			* retain the above copyright notice and this paragraph in its entirety, (2)
10			* distributions including binary code include the above copyright notice and
11			* this paragraph in its entirety in the documentation or other materials
12			* provided with the distribution, and (3) all advertising materials mentioning
13			* features or use of this software display the following acknowledgement:
14			* ``This product includes software developed by the University of California,
15			* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
16			* the University nor the names of its contributors may be used to endorse
17			* or promote products derived from this software without specific prior
18			* written permission.
19			* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
20			* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21			* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22			*/
23
24			#include <sys/types.h>
25			#include <sys/time.h>
26			#include <sys/file.h>
27			#include <sys/limits.h>
28			#include <sys/stat.h>
29
30			#include <ctype.h>
31			#include <err.h>
32			#include <errno.h>
33			#ifdef HAVE_FCNTL_H
34			#include <fcntl.h>
35			#endif
36			#include <pcap.h>
37			#include <stdio.h>
38			#include <stdarg.h>
39			#include <stdlib.h>
40			#include <string.h>
41			#ifdef TIME_WITH_SYS_TIME
42			#include <time.h>
43			#endif
44			#include <unistd.h>
45
46			#include "interface.h"
47			#include "privsep.h"
48			/*
49			* Print out a filename (or other ascii string).
50			* If ep is NULL, assume no truncation check is needed.
51			* Return true if truncated.
52			*/
53			int
54			fn_print(const u_char s, const u_char ep)
55			{
56			int ret;
57			u_char c;
58
59			ret = 1; /* assume truncated */
60			while (ep == NULL \|\| s < ep) {
61			c = *s++;
62			if (c == '\0') {
63			ret = 0;
64			break;
65			}
66			if (!isascii(c)) {
67			c = toascii(c);
68			putchar('M');
69			putchar('-');
70			}
71			if (!isprint(c)) {
72			c ^= 0x40; /* DEL to ?, others to alpha */
73			putchar('^');
74			}
75			putchar(c);
76			}
77			return(ret);
78			}
79
80			/*
81			* Print out a counted filename (or other ascii string).
82			* If ep is NULL, assume no truncation check is needed.
83			* Return true if truncated.
84			*/
85			int
86			fn_printn(const u_char s, u_int n, const u_char ep)
87			{
88			int ret;
89			u_char c;
90
91			ret = 1; /* assume truncated */
92			while (ep == NULL \|\| s < ep) {
93			if (n-- <= 0) {
94			ret = 0;
95			break;
96			}
97			c = *s++;
98			if (!isascii(c)) {
99			c = toascii(c);
100			putchar('M');
101			putchar('-');
102			}
103			if (!isprint(c)) {
104			c ^= 0x40; /* DEL to ?, others to alpha */
105			putchar('^');
106			}
107			putchar(c);
108			}
109			return(ret);
110			}
111
112			/*
113			* Print the timestamp
114			*/
115			void
116			ts_print(const struct bpf_timeval *tvp)
117			{
118			int s;
119			#define TSBUFLEN 32
120			static char buf[TSBUFLEN];
121			static struct bpf_timeval last;
122			struct timeval diff;
123			time_t t;
124
125			if (Iflag && device)
126			(void)printf("%s ", device);
127			switch(tflag){
128			case 0:
129			break;
130			case -1:
131			/* Unix timeval style */
132			(void)printf("%u.%06u ",
133			(u_int32_t)tvp->tv_sec, (u_int32_t)tvp->tv_usec);
134			break;
135			case -2:
136			t=tvp->tv_sec;
137			strftime(buf, TSBUFLEN, "%b %d %T", priv_localtime(&t));
138			printf("%s.%06u ", buf, (u_int32_t)tvp->tv_usec);
139			break;
140			case -3:
141			case -4:
142			/* time since first/last frame */
143			timersub(tvp, &last, &diff);
144			(void)printf("%u.%06u ",
145			(u_int32_t)diff.tv_sec, (u_int32_t)diff.tv_usec);
146			if (tflag == -3 \|\| (last.tv_sec == 0 && last.tv_usec == 0))
147			last = *tvp;
148			break;
149			default:
150			/* Default */
151			s = (tvp->tv_sec + thiszone) % 86400;
152			(void)printf("%02d:%02d:%02d.%06u ",
153			s / 3600, (s % 3600) / 60, s % 60, (u_int32_t)tvp->tv_usec);
154			break;
155			}
156			}
157
158			/*
159			* Print a relative number of seconds (e.g. hold time, prune timer)
160			* in the form 5m1s. This does no truncation, so 32230861 seconds
161			* is represented as 1y1w1d1h1m1s.
162			*/
163			void
164			relts_print(int secs)
165			{
166			static char *lengths[] = {"y", "w", "d", "h", "m", "s"};
167			static int seconds[] = {31536000, 604800, 86400, 3600, 60, 1};
168			char **l = lengths;
169			int *s = seconds;
170
171			if (secs <= 0) {
172			(void)printf("0s");
173			return;
174			}
175			while (secs > 0) {
176			if (secs >= *s) {
177			(void)printf("%d%s", secs / s, l);
178			secs -= (secs / s) *s;
179			}
180			s++;
181			l++;
182			}
183			}
184
185			/*
186			* Convert a token value to a string; use "fmt" if not found.
187			*/
188			const char *
189			tok2str(const struct tok lp, const char fmt, int v)
190			{
191			static char buf[128];
192
193			while (lp->s != NULL) {
194			if (lp->v == v)
195			return (lp->s);
196			++lp;
197			}
198			if (fmt == NULL)
199			fmt = "#%d";
200			(void)snprintf(buf, sizeof(buf), fmt, v);
201			return (buf);
202			}
203
204
205			__dead void
206			error(const char *fmt, ...)
207			{
208			va_list ap;
209
210			(void)fprintf(stderr, "%s: ", program_name);
211			va_start(ap, fmt);
212			(void)vfprintf(stderr, fmt, ap);
213			va_end(ap);
214			(void)fputc('\n', stderr);
215			exit(1);
216			/* NOTREACHED */
217			}
218
219			void
220			warning(const char *fmt, ...)
221			{
222			va_list ap;
223
224			(void)fprintf(stderr, "%s: WARNING: ", program_name);
225			va_start(ap, fmt);
226			(void)vfprintf(stderr, fmt, ap);
227			va_end(ap);
228			(void)fputc('\n', stderr);
229			}
230
231
232			/*
233			* Copy arg vector into a new buffer, concatenating arguments with spaces.
234			*/
235			char *
236			copy_argv(char * const *argv)
237			{
238			size_t len = 0, n;
239			char *buf;
240
241			if (argv == NULL)
242			return (NULL);
243
244			for (n = 0; argv[n]; n++)
245			len += strlen(argv[n])+1;
246			if (len == 0)
247			return (NULL);
248
249			buf = malloc(len);
250			if (buf == NULL)
251			return (NULL);
252
253			strlcpy(buf, argv[0], len);
254			for (n = 1; argv[n]; n++) {
255			strlcat(buf, " ", len);
256			strlcat(buf, argv[n], len);
257			}
258			return (buf);
259			}
260
261			char *
262			read_infile(char *fname)
263			{
264			struct stat buf;
265			int fd;
266			ssize_t cc;
267			size_t bs;
268			char *cp;
269
270			fd = open(fname, O_RDONLY);
271			if (fd < 0)
272			error("can't open %s: %s", fname, pcap_strerror(errno));
273
274			if (fstat(fd, &buf) < 0)
275			error("can't stat %s: %s", fname, pcap_strerror(errno));
276
277			if (buf.st_size >= SSIZE_MAX)
278			error("file too long");
279
280			bs = buf.st_size;
281			cp = malloc(bs + 1);
282			if (cp == NULL)
283			err(1, NULL);
284			cc = read(fd, cp, bs);
285			if (cc == -1)
286			error("read %s: %s", fname, pcap_strerror(errno));
287			if (cc != bs)
288			error("short read %s (%ld != %lu)", fname, (long)cc,
289			(unsigned long)bs);
290			cp[bs] = '\0';
291			close(fd);
292
293			return (cp);
294			}
295
296			void
297			safeputs(const char *s)
298			{
299			while (*s) {
300			safeputchar(*s);
301			s++;
302			}
303			}
304
305			void
306			safeputchar(int c)
307			{
308			unsigned char ch;
309
310			ch = (unsigned char)(c & 0xff);
311			if (c < 0x80 && isprint(c))
312			printf("%c", c & 0xff);
313			else
314			printf("\\%03o", c & 0xff);
315			}
316
317			/*
318			* Print a value a la the %b format of the kernel's printf
319			* (from sbin/ifconfig/ifconfig.c)
320			*/
321			void
322			printb(char s, unsigned short v, char bits)
323			{
324			int i, any = 0;
325			char c;
326
327			if (bits && *bits == 8)
328			printf("%s=%o", s, v);
329			else
330			printf("%s=%x", s, v);
331
332			if (bits) {
333			bits++;
334			putchar('<');
335			while ((i = *bits++)) {
336			if (v & (1 << (i-1))) {
337			if (any)
338			putchar(',');
339			any = 1;
340			for (; (c = *bits) > 32; bits++)
341			putchar(c);
342			} else
343			for (; *bits > 32; bits++)
344			;
345			}
346			putchar('>');
347			}
348			}