File Manager

003 File Manager

Current Path: /usr/src/crypto/openssh

📁 ..
📄 .depend(129.94 KB)
📄 .gitignore(341 B)
📄 .skipped-commit-ids(1.85 KB)
📄 CREDITS(5.36 KB)
📄 ChangeLog(299.53 KB)
📄 FREEBSD-upgrade(5.68 KB)
📄 FREEBSD-vendor(131 B)
📄 INSTALL(9.36 KB)
📄 LICENCE(14.83 KB)
📄 Makefile.in(24.73 KB)
📄 OVERVIEW(6.16 KB)
📄 PROTOCOL(18 KB)
📄 PROTOCOL.agent(220 B)
📄 PROTOCOL.certkeys(11.91 KB)
📄 PROTOCOL.chacha20poly1305(4.52 KB)
📄 PROTOCOL.key(1.5 KB)
📄 PROTOCOL.krl(5.13 KB)
📄 PROTOCOL.mux(8.87 KB)
📄 README(2.39 KB)
📄 README.dns(1.57 KB)
📄 README.platform(3.95 KB)
📄 README.privsep(2.25 KB)
📄 README.tun(4.78 KB)
📄 TODO(2.54 KB)
📄 aclocal.m4(5.56 KB)
📄 addrmatch.c(10.97 KB)
📄 atomicio.c(4.4 KB)
📄 atomicio.h(2.14 KB)
📄 audit-bsm.c(11.82 KB)
📄 audit-linux.c(3.46 KB)
📄 audit.c(5.69 KB)
📄 audit.h(2.27 KB)
📄 auth-bsdauth.c(3.65 KB)
📄 auth-krb5.c(6.93 KB)
📄 auth-options.c(23.45 KB)
📄 auth-options.h(2.75 KB)
📄 auth-pam.c(35.07 KB)
📄 auth-pam.h(1.89 KB)
📄 auth-passwd.c(6.42 KB)
📄 auth-rhosts.c(8.89 KB)
📄 auth-shadow.c(4.25 KB)
📄 auth-sia.c(3.15 KB)
📄 auth-sia.h(1.4 KB)
📄 auth-skey.c(2.75 KB)
📄 auth.c(32.86 KB)
📄 auth.h(7.95 KB)
📄 auth2-chall.c(9.77 KB)
📄 auth2-gss.c(9.63 KB)
📄 auth2-hostbased.c(8.08 KB)
📄 auth2-kbdint.c(2.2 KB)
📄 auth2-none.c(2.29 KB)
📄 auth2-passwd.c(2.36 KB)
📄 auth2-pubkey.c(28.79 KB)
📄 auth2.c(22.23 KB)
📄 authfd.c(14.47 KB)
📄 authfd.h(3.05 KB)
📄 authfile.c(12.59 KB)
📄 authfile.h(2.34 KB)
📄 bitmap.c(4.44 KB)
📄 bitmap.h(1.9 KB)
📄 blacklist.c(2.81 KB)
📄 blacklist_client.h(2.09 KB)
📄 buildpkg.sh.in(17.64 KB)
📄 canohost.c(4.72 KB)
📄 canohost.h(842 B)
📄 chacha.c(5.28 KB)
📄 chacha.h(1000 B)
📄 channels.c(133.25 KB)
📄 channels.h(12.96 KB)
📄 cipher-aes.c(4.54 KB)
📄 cipher-aesctr.c(2.06 KB)
📄 cipher-aesctr.h(1.3 KB)
📄 cipher-chachapoly.c(3.72 KB)
📄 cipher-chachapoly.h(1.58 KB)
📄 cipher-ctr.c(3.57 KB)
📄 cipher.c(13.57 KB)
📄 cipher.h(3.15 KB)
📄 cleanup.c(1.01 KB)
📄 clientloop.c(66.05 KB)
📄 clientloop.h(3.69 KB)
📄 compat.c(6.62 KB)
📄 compat.h(2.77 KB)
📄 config.guess(42.74 KB)
📄 config.h(53.02 KB)
📄 config.sub(35.49 KB)
📄 configure.ac(147.81 KB)
📁 contrib
📄 crc32.c(4.92 KB)
📄 crc32.h(1.44 KB)
📄 crypto_api.h(1.12 KB)
📄 defines.h(21.73 KB)
📄 dh.c(15.14 KB)
📄 dh.h(2.59 KB)
📄 digest-libc.c(5.69 KB)
📄 digest-openssl.c(4.95 KB)
📄 digest.h(2.51 KB)
📄 dispatch.c(3.52 KB)
📄 dispatch.h(2.2 KB)
📄 dns.c(9.15 KB)
📄 dns.h(2.03 KB)
📄 ed25519.c(3.1 KB)
📄 entropy.c(6.34 KB)
📄 entropy.h(1.47 KB)
📄 fatal.c(1.63 KB)
📄 fe25519.c(8.13 KB)
📄 fe25519.h(2.31 KB)
📄 fixalgorithms(422 B)
📄 fixpaths(499 B)
📄 freebsd-configure.sh(1.07 KB)
📄 freebsd-namespace.sh(1.93 KB)
📄 freebsd-post-merge.sh(224 B)
📄 freebsd-pre-merge.sh(429 B)
📄 ge25519.c(11.04 KB)
📄 ge25519.h(1.35 KB)
📄 ge25519_base.data(164.61 KB)
📄 groupaccess.c(3.5 KB)
📄 groupaccess.h(1.53 KB)
📄 gss-genr.c(7.99 KB)
📄 gss-serv-krb5.c(5.63 KB)
📄 gss-serv.c(10.32 KB)
📄 hash.c(623 B)
📄 hmac.c(5.08 KB)
📄 hmac.h(1.62 KB)
📄 hostfile.c(21.7 KB)
📄 hostfile.h(3.8 KB)
📄 includes.h(3.85 KB)
📄 install-sh(13.67 KB)
📄 kex.c(25.9 KB)
📄 kex.h(7.32 KB)
📄 kexc25519.c(4.62 KB)
📄 kexc25519c.c(5.11 KB)
📄 kexc25519s.c(4.99 KB)
📄 kexdh.c(3.27 KB)
📄 kexdhc.c(6.13 KB)
📄 kexdhs.c(6.06 KB)
📄 kexecdh.c(3.49 KB)
📄 kexecdhc.c(6.22 KB)
📄 kexecdhs.c(5.94 KB)
📄 kexgex.c(3.67 KB)
📄 kexgexc.c(7.63 KB)
📄 kexgexs.c(7.35 KB)
📄 krb5_config.h(315 B)
📄 krl.c(35.63 KB)
📄 krl.h(2.67 KB)
📄 log.c(10.67 KB)
📄 log.h(2.64 KB)
📄 loginrec.c(41.91 KB)
📄 loginrec.h(4.6 KB)
📄 logintest.c(8.58 KB)
📄 mac.c(7.24 KB)
📄 mac.h(1.96 KB)
📄 match.c(9.14 KB)
📄 match.h(1.16 KB)
📄 md5crypt.c(3.98 KB)
📄 md5crypt.h(744 B)
📄 mdoc2man.awk(8.38 KB)
📄 misc.c(43.77 KB)
📄 misc.h(5.69 KB)
📄 mkinstalldirs(633 B)
📄 moduli(552 KB)
📄 moduli.5(3.6 KB)
📄 moduli.c(20.46 KB)
📄 monitor.c(50.56 KB)
📄 monitor.h(3.83 KB)
📄 monitor_fdpass.c(4.71 KB)
📄 monitor_fdpass.h(1.49 KB)
📄 monitor_wrap.c(27.44 KB)
📄 monitor_wrap.h(3.84 KB)
📄 msg.c(2.75 KB)
📄 msg.h(1.49 KB)
📄 mux.c(65.73 KB)
📄 myproposal.h(5.62 KB)
📄 nchan.c(12.06 KB)
📄 nchan.ms(3.86 KB)
📄 nchan2.ms(3.38 KB)
📄 opacket.c(5.55 KB)
📄 opacket.h(5.98 KB)
📁 openbsd-compat
📄 openssh.xml.in(2.77 KB)
📄 opensshd.init.in(1.86 KB)
📄 packet.c(70.79 KB)
📄 packet.h(7.39 KB)
📄 pathnames.h(5.69 KB)
📄 pkcs11.h(41.37 KB)
📄 platform-misc.c(1.09 KB)
📄 platform-pledge.c(1.86 KB)
📄 platform-tracing.c(1.69 KB)
📄 platform.c(4.71 KB)
📄 platform.h(1.43 KB)
📄 poly1305.c(4.54 KB)
📄 poly1305.h(645 B)
📄 progressmeter.c(7.48 KB)
📄 progressmeter.h(1.44 KB)
📄 readconf.c(81 KB)
📄 readconf.h(7.83 KB)
📄 readpass.c(4.99 KB)
📁 regress
📄 rijndael.c(51.57 KB)
📄 rijndael.h(2.07 KB)
📄 sandbox-capsicum.c(3.39 KB)
📄 sandbox-darwin.c(2.49 KB)
📄 sandbox-null.c(1.62 KB)
📄 sandbox-pledge.c(1.83 KB)
📄 sandbox-rlimit.c(2.43 KB)
📄 sandbox-seccomp-filter.c(9.88 KB)
📄 sandbox-solaris.c(2.9 KB)
📄 sandbox-systrace.c(6.27 KB)
📄 sc25519.c(7.16 KB)
📄 sc25519.h(2.83 KB)
📄 scp.1(5.56 KB)
📄 scp.c(39.14 KB)
📄 servconf.c(79.73 KB)
📄 servconf.h(10.13 KB)
📄 serverloop.c(26.03 KB)
📄 serverloop.h(1000 B)
📄 session.c(66.72 KB)
📄 session.h(2.59 KB)
📄 sftp-client.c(49.62 KB)
📄 sftp-client.h(4.29 KB)
📄 sftp-common.c(6.83 KB)
📄 sftp-common.h(2.02 KB)
📄 sftp-glob.c(3.38 KB)
📄 sftp-server-main.c(1.49 KB)
📄 sftp-server.8(4.98 KB)
📄 sftp-server.c(42.36 KB)
📄 sftp.1(14.53 KB)
📄 sftp.c(59.73 KB)
📄 sftp.h(3.33 KB)
📄 smult_curve25519_ref.c(6.71 KB)
📄 ssh-add.1(6.45 KB)
📄 ssh-add.c(17.69 KB)
📄 ssh-agent.1(7.16 KB)
📄 ssh-agent.c(33.19 KB)
📄 ssh-dss.c(5.55 KB)
📄 ssh-ecdsa.c(5.54 KB)
📄 ssh-ed25519.c(4.21 KB)
📄 ssh-gss.h(4.71 KB)
📄 ssh-keygen.1(26.5 KB)
📄 ssh-keygen.c(78.58 KB)
📄 ssh-keyscan.1(3.82 KB)
📄 ssh-keyscan.c(17.83 KB)
📄 ssh-keysign.8(2.95 KB)
📄 ssh-keysign.c(8.26 KB)
📄 ssh-pkcs11-client.c(6.65 KB)
📄 ssh-pkcs11-helper.8(1.33 KB)
📄 ssh-pkcs11-helper.c(9.79 KB)
📄 ssh-pkcs11.c(19.56 KB)
📄 ssh-pkcs11.h(1.06 KB)
📄 ssh-rsa.c(11.89 KB)
📄 ssh-sandbox.h(1.09 KB)
📄 ssh-xmss.c(5 KB)
📄 ssh.1(44.3 KB)
📄 ssh.c(61.58 KB)
📄 ssh.h(2.6 KB)
📄 ssh2.h(5.66 KB)
📄 ssh_api.c(13.81 KB)
📄 ssh_api.h(4.33 KB)
📄 ssh_config(1.53 KB)
📄 ssh_config.5(51.41 KB)
📄 ssh_namespace.h(44.25 KB)
📄 sshbuf-getput-basic.c(11.81 KB)
📄 sshbuf-getput-crypto.c(5.64 KB)
📄 sshbuf-misc.c(3.53 KB)
📄 sshbuf.c(8.96 KB)
📄 sshbuf.h(12.2 KB)
📄 sshconnect.c(43.92 KB)
📄 sshconnect.h(2.3 KB)
📄 sshconnect2.c(59.05 KB)
📄 sshd.8(30.87 KB)
📄 sshd.c(64.58 KB)
📄 sshd_config(3.18 KB)
📄 sshd_config.5(50.55 KB)
📄 ssherr.c(5.04 KB)
📄 ssherr.h(3.28 KB)
📄 sshkey-xmss.c(28.17 KB)
📄 sshkey-xmss.h(2.89 KB)
📄 sshkey.c(102.94 KB)
📄 sshkey.h(10.09 KB)
📄 sshlogin.c(5.25 KB)
📄 sshlogin.h(935 B)
📄 sshpty.c(5.59 KB)
📄 sshpty.h(1.03 KB)
📄 sshtty.c(2.95 KB)
📄 survey.sh.in(1.68 KB)
📄 ttymodes.c(10.1 KB)
📄 ttymodes.h(4.85 KB)
📄 uidswap.c(7.09 KB)
📄 uidswap.h(680 B)
📄 umac.c(44.91 KB)
📄 umac.h(4.58 KB)
📄 umac128.c(414 B)
📄 utf8.c(8.09 KB)
📄 utf8.h(1.17 KB)
📄 uuencode.c(2.94 KB)
📄 uuencode.h(1.5 KB)
📄 verify.c(668 B)
📄 version.h(385 B)
📄 xmalloc.c(2.41 KB)
📄 xmalloc.h(1.08 KB)
📄 xmss_commons.c(630 B)
📄 xmss_commons.h(450 B)
📄 xmss_fast.c(32.16 KB)
📄 xmss_fast.h(3.64 KB)
📄 xmss_hash.c(3.35 KB)
📄 xmss_hash.h(841 B)
📄 xmss_hash_address.c(1.2 KB)
📄 xmss_hash_address.h(836 B)
📄 xmss_wots.c(4.74 KB)
📄 xmss_wots.h(1.86 KB)

Editing: utf8.c

/* $OpenBSD: utf8.c,v 1.8 2018/08/21 13:56:27 schwarze Exp $ */
/*
 * Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org>
 *
 * 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.
 */

/*
 * Utility functions for multibyte-character handling,
 * in particular to sanitize untrusted strings for terminal output.
 */

#include "includes.h"

#include <sys/types.h>
#ifdef HAVE_LANGINFO_H
# include <langinfo.h>
#endif
#include <limits.h>
#include <locale.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) && !defined(BROKEN_STRNVIS)
# include <vis.h>
#endif
#ifdef HAVE_WCHAR_H
# include <wchar.h>
#endif

#include "utf8.h"

static int	 dangerous_locale(void);
static int	 grow_dst(char **, size_t *, size_t, char **, size_t);
static int	 vasnmprintf(char **, size_t, int *, const char *, va_list);

/*
 * For US-ASCII and UTF-8 encodings, we can safely recover from
 * encoding errors and from non-printable characters.  For any
 * other encodings, err to the side of caution and abort parsing:
 * For state-dependent encodings, recovery is impossible.
 * For arbitrary encodings, replacement of non-printable
 * characters would be non-trivial and too fragile.
 * The comments indicate what nl_langinfo(CODESET)
 * returns for US-ASCII on various operating systems.
 */

static int
dangerous_locale(void) {
	char	*loc;

loc = nl_langinfo(CODESET);
	return strcmp(loc, "UTF-8") != 0 &&
	    strcmp(loc, "US-ASCII") != 0 &&		/* OpenBSD */
	    strcmp(loc, "ANSI_X3.4-1968") != 0 &&	/* Linux */
	    strcmp(loc, "ISO8859-1") != 0 &&		/* AIX */
	    strcmp(loc, "646") != 0 &&			/* Solaris, NetBSD */
	    strcmp(loc, "") != 0;			/* Solaris 6 */
}

static int
grow_dst(char **dst, size_t *sz, size_t maxsz, char **dp, size_t need)
{
	char	*tp;
	size_t	 tsz;

if (*dp + need < *dst + *sz)
		return 0;
	tsz = *sz + 128;
	if (tsz > maxsz)
		tsz = maxsz;
	if ((tp = recallocarray(*dst, *sz, tsz, 1)) == NULL)
		return -1;
	*dp = tp + (*dp - *dst);
	*dst = tp;
	*sz = tsz;
	return 0;
}

/*
 * The following two functions limit the number of bytes written,
 * including the terminating '\0', to sz.  Unless wp is NULL,
 * they limit the number of display columns occupied to *wp.
 * Whichever is reached first terminates the output string.
 * To stay close to the standard interfaces, they return the number of
 * non-NUL bytes that would have been written if both were unlimited.
 * If wp is NULL, newline, carriage return, and tab are allowed;
 * otherwise, the actual number of columns occupied by what was
 * written is returned in *wp.
 */

static int
vasnmprintf(char **str, size_t maxsz, int *wp, const char *fmt, va_list ap)
{
	char	*src;	/* Source string returned from vasprintf. */
	char	*sp;	/* Pointer into src. */
	char	*dst;	/* Destination string to be returned. */
	char	*dp;	/* Pointer into dst. */
	char	*tp;	/* Temporary pointer for dst. */
	size_t	 sz;	/* Number of bytes allocated for dst. */
	wchar_t	 wc;	/* Wide character at sp. */
	int	 len;	/* Number of bytes in the character at sp. */
	int	 ret;	/* Number of bytes needed to format src. */
	int	 width;	/* Display width of the character wc. */
	int	 total_width, max_width, print;

src = NULL;
	if ((ret = vasprintf(&src, fmt, ap)) <= 0)
		goto fail;

sz = strlen(src) + 1;
	if ((dst = malloc(sz)) == NULL) {
		free(src);
		ret = -1;
		goto fail;
	}

if (maxsz > INT_MAX)
		maxsz = INT_MAX;

sp = src;
	dp = dst;
	ret = 0;
	print = 1;
	total_width = 0;
	max_width = wp == NULL ? INT_MAX : *wp;
	while (*sp != '\0') {
		if ((len = mbtowc(&wc, sp, MB_CUR_MAX)) == -1) {
			(void)mbtowc(NULL, NULL, MB_CUR_MAX);
			if (dangerous_locale()) {
				ret = -1;
				break;
			}
			len = 1;
			width = -1;
		} else if (wp == NULL &&
		    (wc == L'\n' || wc == L'\r' || wc == L'\t')) {
			/*
			 * Don't use width uninitialized; the actual
			 * value doesn't matter because total_width
			 * is only returned for wp != NULL.
			 */
			width = 0;
		} else if ((width = wcwidth(wc)) == -1 &&
		    dangerous_locale()) {
			ret = -1;
			break;
		}

/* Valid, printable character. */

if (width >= 0) {
			if (print && (dp - dst >= (int)maxsz - len ||
			    total_width > max_width - width))
				print = 0;
			if (print) {
				if (grow_dst(&dst, &sz, maxsz,
				    &dp, len) == -1) {
					ret = -1;
					break;
				}
				total_width += width;
				memcpy(dp, sp, len);
				dp += len;
			}
			sp += len;
			if (ret >= 0)
				ret += len;
			continue;
		}

/* Escaping required. */

while (len > 0) {
			if (print && (dp - dst >= (int)maxsz - 4 ||
			    total_width > max_width - 4))
				print = 0;
			if (print) {
				if (grow_dst(&dst, &sz, maxsz,
				    &dp, 4) == -1) {
					ret = -1;
					break;
				}
				tp = vis(dp, *sp, VIS_OCTAL | VIS_ALL, 0);
				width = tp - dp;
				total_width += width;
				dp = tp;
			} else
				width = 4;
			len--;
			sp++;
			if (ret >= 0)
				ret += width;
		}
		if (len > 0)
			break;
	}
	free(src);
	*dp = '\0';
	*str = dst;
	if (wp != NULL)
		*wp = total_width;

/*
	 * If the string was truncated by the width limit but
	 * would have fit into the size limit, the only sane way
	 * to report the problem is using the return value, such
	 * that the usual idiom "if (ret < 0 || ret >= sz) error"
	 * works as expected.
	 */

if (ret < (int)maxsz && !print)
		ret = -1;
	return ret;

fail:
	if (wp != NULL)
		*wp = 0;
	if (ret == 0) {
		*str = src;
		return 0;
	} else {
		*str = NULL;
		return -1;
	}
}

int
snmprintf(char *str, size_t sz, int *wp, const char *fmt, ...)
{
	va_list	 ap;
	char	*cp;
	int	 ret;

va_start(ap, fmt);
	ret = vasnmprintf(&cp, sz, wp, fmt, ap);
	va_end(ap);
	if (cp != NULL) {
		(void)strlcpy(str, cp, sz);
		free(cp);
	} else
		*str = '\0';
	return ret;
}

/*
 * To stay close to the standard interfaces, the following functions
 * return the number of non-NUL bytes written.
 */

int
vfmprintf(FILE *stream, const char *fmt, va_list ap)
{
	char	*str;
	int	 ret;

if ((ret = vasnmprintf(&str, INT_MAX, NULL, fmt, ap)) < 0)
		return -1;
	if (fputs(str, stream) == EOF)
		ret = -1;
	free(str);
	return ret;
}

int
fmprintf(FILE *stream, const char *fmt, ...)
{
	va_list	 ap;
	int	 ret;

va_start(ap, fmt);
	ret = vfmprintf(stream, fmt, ap);
	va_end(ap);
	return ret;
}

int
mprintf(const char *fmt, ...)
{
	va_list	 ap;
	int	 ret;

va_start(ap, fmt);
	ret = vfmprintf(stdout, fmt, ap);
	va_end(ap);
	return ret;
}

/*
 * Set up libc for multibyte output in the user's chosen locale.
 *
 * XXX: we are known to have problems with Turkish (i/I confusion) so we
 *      deliberately fall back to the C locale for now. Longer term we should
 *      always prefer to select C.[encoding] if possible, but there's no
 *      standardisation in locales between systems, so we'll need to survey
 *      what's out there first.
 */
void
msetlocale(void)
{
	const char *vars[] = { "LC_ALL", "LC_CTYPE", "LANG", NULL };
	char *cp;
	int i;

/*
	 * We can't yet cope with dotless/dotted I in Turkish locales,
	 * so fall back to the C locale for these.
	 */
	for (i = 0; vars[i] != NULL; i++) {
		if ((cp = getenv(vars[i])) == NULL)
			continue;
		if (strncasecmp(cp, "TR", 2) != 0)
			break;
		/*
		 * If we're in a UTF-8 locale then prefer to use
		 * the C.UTF-8 locale (or equivalent) if it exists.
		 */
		if ((strcasestr(cp, "UTF-8") != NULL ||
		    strcasestr(cp, "UTF8") != NULL) &&
		    (setlocale(LC_CTYPE, "C.UTF-8") != NULL ||
		    setlocale(LC_CTYPE, "POSIX.UTF-8") != NULL))
			return;
		setlocale(LC_CTYPE, "C");
		return;
	}
	/* We can handle this locale */
	setlocale(LC_CTYPE, "");
}

003 File Manager

Editing: utf8.c

Upload File

Create Folder