diff options
Diffstat (limited to 'openbsd-compat')
25 files changed, 2187 insertions, 0 deletions
diff --git a/openbsd-compat/bsd-asprintf.c b/openbsd-compat/bsd-asprintf.c new file mode 100644 index 0000000..fbcb867 --- /dev/null +++ b/openbsd-compat/bsd-asprintf.c @@ -0,0 +1,88 @@ +/* + * Copyright (c) 2004 Darren Tucker. + * + * Based originally on asprintf.c from OpenBSD: + * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com> + * + * 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 "openbsd-compat.h" + +#ifndef HAVE_ASPRINTF + +#include <errno.h> +#include <limits.h> /* for INT_MAX */ +#include <stdarg.h> +#include <stdio.h> /* for vsnprintf */ +#include <stdlib.h> + +#define VA_COPY(dest, src) va_copy(dest, src) + +#define INIT_SZ 128 + +int +vasprintf(char **str, const char *fmt, va_list ap) +{ + int ret; + va_list ap2; + char *string, *newstr; + size_t len; + + if ((string = malloc(INIT_SZ)) == NULL) + goto fail; + + VA_COPY(ap2, ap); + ret = vsnprintf(string, INIT_SZ, fmt, ap2); + va_end(ap2); + if (ret >= 0 && ret < INIT_SZ) { /* succeeded with initial alloc */ + *str = string; + } else if (ret == INT_MAX || ret < 0) { /* Bad length */ + free(string); + goto fail; + } else { /* bigger than initial, realloc allowing for nul */ + len = (size_t)ret + 1; + if ((newstr = realloc(string, len)) == NULL) { + free(string); + goto fail; + } + VA_COPY(ap2, ap); + ret = vsnprintf(newstr, len, fmt, ap2); + va_end(ap2); + if (ret < 0 || (size_t)ret >= len) { /* failed with realloc'ed string */ + free(newstr); + goto fail; + } + *str = newstr; + } + return (ret); + +fail: + *str = NULL; + errno = ENOMEM; + return (-1); +} + +int asprintf(char **str, const char *fmt, ...) +{ + va_list ap; + int ret; + + *str = NULL; + va_start(ap, fmt); + ret = vasprintf(str, fmt, ap); + va_end(ap); + + return ret; +} +#endif diff --git a/openbsd-compat/bsd-getline.c b/openbsd-compat/bsd-getline.c new file mode 100644 index 0000000..52b44f7 --- /dev/null +++ b/openbsd-compat/bsd-getline.c @@ -0,0 +1,115 @@ +/* $NetBSD: getline.c,v 1.1.1.6 2015/01/02 20:34:27 christos Exp $ */ + +/* NetBSD: getline.c,v 1.2 2014/09/16 17:23:50 christos Exp */ + +/*- + * Copyright (c) 2011 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Christos Zoulas. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + +/* NETBSD ORIGINAL: external/bsd/file/dist/src/getline.c */ + +#include "openbsd-compat.h" + +#if 0 +#include "file.h" +#endif + +#if !HAVE_GETLINE +#include <stdlib.h> +#include <stdio.h> +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#include <errno.h> +#include <string.h> + +static ssize_t +getdelim(char **buf, size_t *bufsiz, int delimiter, FILE *fp) +{ + char *ptr, *eptr; + + + if (*buf == NULL || *bufsiz == 0) { + if ((*buf = malloc(BUFSIZ)) == NULL) + return -1; + *bufsiz = BUFSIZ; + } + + for (ptr = *buf, eptr = *buf + *bufsiz;;) { + int c = fgetc(fp); + if (c == -1) { + if (feof(fp)) { + ssize_t diff = (ssize_t)(ptr - *buf); + if (diff != 0) { + *ptr = '\0'; + return diff; + } + } + return -1; + } + *ptr++ = (char)c; + if (c == delimiter) { + *ptr = '\0'; + return ptr - *buf; + } + if (ptr + 2 >= eptr) { + char *nbuf; + size_t nbufsiz = *bufsiz * 2; + ssize_t d = ptr - *buf; + if ((nbuf = realloc(*buf, nbufsiz)) == NULL) + return -1; + *buf = nbuf; + *bufsiz = nbufsiz; + eptr = nbuf + nbufsiz; + ptr = nbuf + d; + } + } +} + +ssize_t +getline(char **buf, size_t *bufsiz, FILE *fp) +{ + return getdelim(buf, bufsiz, '\n', fp); +} + +#endif + +#ifdef TEST +int +main(int argc, char *argv[]) +{ + char *p = NULL; + ssize_t len; + size_t n = 0; + + while ((len = getline(&p, &n, stdin)) != -1) + (void)printf("%" SIZE_T_FORMAT "d %s", len, p); + free(p); + return 0; +} +#endif diff --git a/openbsd-compat/bsd-getpagesize.c b/openbsd-compat/bsd-getpagesize.c new file mode 100644 index 0000000..903bfc3 --- /dev/null +++ b/openbsd-compat/bsd-getpagesize.c @@ -0,0 +1,27 @@ +/* Placed in the public domain */ + +#include "openbsd-compat.h" + +#if !defined(HAVE_GETPAGESIZE) + +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#include <limits.h> + +int +getpagesize(void) +{ +#if defined(HAVE_SYSCONF) && defined(_SC_PAGESIZE) + long r = sysconf(_SC_PAGESIZE); + if (r > 0 && r < INT_MAX) + return (int)r; +#endif + /* + * This is at the lower end of common values and appropriate for + * our current use of getpagesize() in recallocarray(). + */ + return 4096; +} + +#endif /* !defined(HAVE_GETPAGESIZE) */ diff --git a/openbsd-compat/clock_gettime.c b/openbsd-compat/clock_gettime.c new file mode 100644 index 0000000..bbf978c --- /dev/null +++ b/openbsd-compat/clock_gettime.c @@ -0,0 +1,33 @@ +/* + * Copyright (c) 2020 Yubico AB. All rights reserved. + * Use of this source code is governed by a BSD-style + * license that can be found in the LICENSE file. + * SPDX-License-Identifier: BSD-2-Clause + */ + +#include "openbsd-compat.h" + +#if !defined(HAVE_CLOCK_GETTIME) + +#if _WIN32 +int +clock_gettime(clockid_t clock_id, struct timespec *tp) +{ + ULONGLONG ms; + + if (clock_id != CLOCK_MONOTONIC) { + errno = EINVAL; + return (-1); + } + + ms = GetTickCount64(); + tp->tv_sec = ms / 1000L; + tp->tv_nsec = (ms % 1000L) * 1000000L; + + return (0); +} +#else +#error "please provide an implementation of clock_gettime() for your platform" +#endif /* _WIN32 */ + +#endif /* !defined(HAVE_CLOCK_GETTIME) */ diff --git a/openbsd-compat/endian_win32.c b/openbsd-compat/endian_win32.c new file mode 100644 index 0000000..756c0cb --- /dev/null +++ b/openbsd-compat/endian_win32.c @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2020 Yubico AB. All rights reserved. + * Use of this source code is governed by a BSD-style + * license that can be found in the LICENSE file. + * SPDX-License-Identifier: BSD-2-Clause + */ + +#include "openbsd-compat.h" + +#if defined(_WIN32) && !defined(HAVE_ENDIAN_H) + +/* + * Hopefully, if the endianness differs from the end result, the compiler + * optimizes these functions with some type of bswap instruction. Or, + * otherwise, to just return the input value unmodified. GCC and clang + * both does these optimization at least. This should be preferred over + * relying on some BYTE_ORDER macro, which may or may not be defined. + */ + +uint32_t +htole32(uint32_t in) +{ + uint32_t out = 0; + uint8_t *b = (uint8_t *)&out; + + b[0] = (uint8_t)((in >> 0) & 0xff); + b[1] = (uint8_t)((in >> 8) & 0xff); + b[2] = (uint8_t)((in >> 16) & 0xff); + b[3] = (uint8_t)((in >> 24) & 0xff); + + return (out); +} + +uint64_t +htole64(uint64_t in) +{ + uint64_t out = 0; + uint8_t *b = (uint8_t *)&out; + + b[0] = (uint8_t)((in >> 0) & 0xff); + b[1] = (uint8_t)((in >> 8) & 0xff); + b[2] = (uint8_t)((in >> 16) & 0xff); + b[3] = (uint8_t)((in >> 24) & 0xff); + b[4] = (uint8_t)((in >> 32) & 0xff); + b[5] = (uint8_t)((in >> 40) & 0xff); + b[6] = (uint8_t)((in >> 48) & 0xff); + b[7] = (uint8_t)((in >> 56) & 0xff); + + return (out); +} + +#endif /* WIN32 && !HAVE_ENDIAN_H */ diff --git a/openbsd-compat/err.h b/openbsd-compat/err.h new file mode 100644 index 0000000..394c7bb --- /dev/null +++ b/openbsd-compat/err.h @@ -0,0 +1,85 @@ +/* + * Public domain + * err.h compatibility shim + */ + +#ifndef _COMPAT_ERR_H +#define _COMPAT_ERR_H + +#if !defined(HAVE_ERR_H) + +#include <errno.h> +#include <stdarg.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#if defined(_MSC_VER) +__declspec(noreturn) +#else +__attribute__((noreturn)) +#endif +static inline void +err(int eval, const char *fmt, ...) +{ + int sverrno = errno; + va_list ap; + + va_start(ap, fmt); + if (fmt != NULL) { + vfprintf(stderr, fmt, ap); + fprintf(stderr, ": "); + } + va_end(ap); + fprintf(stderr, "%s\n", strerror(sverrno)); + exit(eval); +} + +#if defined(_MSC_VER) +__declspec(noreturn) +#else +__attribute__((noreturn)) +#endif +static inline void +errx(int eval, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + if (fmt != NULL) + vfprintf(stderr, fmt, ap); + va_end(ap); + fprintf(stderr, "\n"); + exit(eval); +} + +static inline void +warn(const char *fmt, ...) +{ + int sverrno = errno; + va_list ap; + + va_start(ap, fmt); + if (fmt != NULL) { + vfprintf(stderr, fmt, ap); + fprintf(stderr, ": "); + } + va_end(ap); + fprintf(stderr, "%s\n", strerror(sverrno)); +} + +static inline void +warnx(const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + if (fmt != NULL) + vfprintf(stderr, fmt, ap); + va_end(ap); + fprintf(stderr, "\n"); +} + +#endif /* !defined(HAVE_ERR_H) */ + +#endif /* _COMPAT_ERR_H */ diff --git a/openbsd-compat/explicit_bzero.c b/openbsd-compat/explicit_bzero.c new file mode 100644 index 0000000..ac64e69 --- /dev/null +++ b/openbsd-compat/explicit_bzero.c @@ -0,0 +1,57 @@ +/* OPENBSD ORIGINAL: lib/libc/string/explicit_bzero.c */ +/* $OpenBSD: explicit_bzero.c,v 1.1 2014/01/22 21:06:45 tedu Exp $ */ +/* + * Public domain. + * Written by Ted Unangst + */ + +#include "openbsd-compat.h" + +#if !defined(HAVE_EXPLICIT_BZERO) && !defined(_WIN32) + +#include <string.h> + +/* + * explicit_bzero - don't let the compiler optimize away bzero + */ + +#ifdef HAVE_MEMSET_S + +void +explicit_bzero(void *p, size_t n) +{ + if (n == 0) + return; + (void)memset_s(p, n, 0, n); +} + +#else /* HAVE_MEMSET_S */ + +/* + * Indirect bzero through a volatile pointer to hopefully avoid + * dead-store optimisation eliminating the call. + */ +static void (* volatile ssh_bzero)(void *, size_t) = bzero; + +void +explicit_bzero(void *p, size_t n) +{ + if (n == 0) + return; + /* + * clang -fsanitize=memory needs to intercept memset-like functions + * to correctly detect memory initialisation. Make sure one is called + * directly since our indirection trick above successfully confuses it. + */ +#if defined(__has_feature) +# if __has_feature(memory_sanitizer) + memset(p, 0, n); +# endif +#endif + + ssh_bzero(p, n); +} + +#endif /* HAVE_MEMSET_S */ + +#endif /* !defined(HAVE_EXPLICIT_BZERO) && !defined(_WIN32) */ diff --git a/openbsd-compat/explicit_bzero_win32.c b/openbsd-compat/explicit_bzero_win32.c new file mode 100644 index 0000000..8017aff --- /dev/null +++ b/openbsd-compat/explicit_bzero_win32.c @@ -0,0 +1,19 @@ +/* + * Public domain. + * Win32 explicit_bzero compatibility shim. + */ + +#include "openbsd-compat.h" + +#if !defined(HAVE_EXPLICIT_BZERO) && defined(_WIN32) + +#include <windows.h> +#include <string.h> + +void +explicit_bzero(void *buf, size_t len) +{ + SecureZeroMemory(buf, len); +} + +#endif /* !defined(HAVE_EXPLICIT_BZERO) && defined(_WIN32) */ diff --git a/openbsd-compat/freezero.c b/openbsd-compat/freezero.c new file mode 100644 index 0000000..d1e0066 --- /dev/null +++ b/openbsd-compat/freezero.c @@ -0,0 +1,30 @@ +/* + * Copyright (c) 2008, 2010, 2011, 2016 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 "openbsd-compat.h" + +#ifndef HAVE_FREEZERO + +void +freezero(void *ptr, size_t sz) +{ + if (ptr == NULL) + return; + explicit_bzero(ptr, sz); + free(ptr); +} + +#endif /* HAVE_FREEZERO */ diff --git a/openbsd-compat/getopt.h b/openbsd-compat/getopt.h new file mode 100644 index 0000000..8eb1244 --- /dev/null +++ b/openbsd-compat/getopt.h @@ -0,0 +1,74 @@ +/* $OpenBSD: getopt.h,v 1.2 2008/06/26 05:42:04 ray Exp $ */ +/* $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $ */ + +/*- + * Copyright (c) 2000 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Dieter Baron and Thomas Klausner. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + +#ifndef _GETOPT_H_ +#define _GETOPT_H_ + +/* + * GNU-like getopt_long() and 4.4BSD getsubopt()/optreset extensions + */ +#define no_argument 0 +#define required_argument 1 +#define optional_argument 2 + +struct option { + /* name of long option */ + const char *name; + /* + * one of no_argument, required_argument, and optional_argument: + * whether option takes an argument + */ + int has_arg; + /* if not NULL, set *flag to val when option found */ + int *flag; + /* if flag not NULL, value to set *flag to; else return value */ + int val; +}; + +int getopt_long(int, char * const *, const char *, + const struct option *, int *); +int getopt_long_only(int, char * const *, const char *, + const struct option *, int *); +#ifndef _GETOPT_DEFINED_ +#define _GETOPT_DEFINED_ +int getopt(int, char * const *, const char *); +int getsubopt(char **, char * const *, char **); + +extern char *optarg; /* getopt(3) external variables */ +extern int opterr; +extern int optind; +extern int optopt; +extern int optreset; +extern char *suboptarg; /* getsubopt(3) external variable */ +#endif + +#endif /* !_GETOPT_H_ */ diff --git a/openbsd-compat/getopt_long.c b/openbsd-compat/getopt_long.c new file mode 100644 index 0000000..dabbb46 --- /dev/null +++ b/openbsd-compat/getopt_long.c @@ -0,0 +1,523 @@ +/* $OpenBSD: getopt_long.c,v 1.25 2011/03/05 22:10:11 guenther Exp $ */ +/* $NetBSD: getopt_long.c,v 1.15 2002/01/31 22:43:40 tv Exp $ */ + +/* + * Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com> + * + * 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. + * + * Sponsored in part by the Defense Advanced Research Projects + * Agency (DARPA) and Air Force Research Laboratory, Air Force + * Materiel Command, USAF, under agreement number F39502-99-1-0512. + */ +/*- + * Copyright (c) 2000 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Dieter Baron and Thomas Klausner. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + +/* OPENBSD ORIGINAL: lib/libc/stdlib/getopt_long.c */ +#include "openbsd-compat.h" + +#if !defined(HAVE_GETOPT) + +#if 0 +#include <err.h> +#include <getopt.h> +#endif +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> + +int opterr = 1; /* if error message should be printed */ +int optind = 1; /* index into parent argv vector */ +int optopt = '?'; /* character checked for validity */ +int optreset; /* reset getopt */ +char *optarg; /* argument associated with option */ + +#define PRINT_ERROR ((opterr) && (*options != ':')) + +#define FLAG_PERMUTE 0x01 /* permute non-options to the end of argv */ +#define FLAG_ALLARGS 0x02 /* treat non-options as args to option "-1" */ +#define FLAG_LONGONLY 0x04 /* operate as getopt_long_only */ + +/* return values */ +#define BADCH (int)'?' +#define BADARG ((*options == ':') ? (int)':' : (int)'?') +#define INORDER (int)1 + +#define EMSG "" + +static int getopt_internal(int, char * const *, const char *, + const struct option *, int *, int); +static int parse_long_options(char * const *, const char *, + const struct option *, int *, int); +static int gcd(int, int); +static void permute_args(int, int, int, char * const *); + +static char *place = EMSG; /* option letter processing */ + +/* XXX: set optreset to 1 rather than these two */ +static int nonopt_start = -1; /* first non option argument (for permute) */ +static int nonopt_end = -1; /* first option after non options (for permute) */ + +/* Error messages */ +static const char recargchar[] = "option requires an argument -- %c"; +static const char recargstring[] = "option requires an argument -- %s"; +static const char ambig[] = "ambiguous option -- %.*s"; +static const char noarg[] = "option doesn't take an argument -- %.*s"; +static const char illoptchar[] = "unknown option -- %c"; +static const char illoptstring[] = "unknown option -- %s"; + +/* + * Compute the greatest common divisor of a and b. + */ +static int +gcd(int a, int b) +{ + int c; + + c = a % b; + while (c != 0) { + a = b; + b = c; + c = a % b; + } + + return (b); +} + +/* + * Exchange the block from nonopt_start to nonopt_end with the block + * from nonopt_end to opt_end (keeping the same order of arguments + * in each block). + */ +static void +permute_args(int panonopt_start, int panonopt_end, int opt_end, + char * const *nargv) +{ + int cstart, cyclelen, i, j, ncycle, nnonopts, nopts, pos; + char *swap; + + /* + * compute lengths of blocks and number and size of cycles + */ + nnonopts = panonopt_end - panonopt_start; + nopts = opt_end - panonopt_end; + ncycle = gcd(nnonopts, nopts); + cyclelen = (opt_end - panonopt_start) / ncycle; + + for (i = 0; i < ncycle; i++) { + cstart = panonopt_end+i; + pos = cstart; + for (j = 0; j < cyclelen; j++) { + if (pos >= panonopt_end) + pos -= nnonopts; + else + pos += nopts; + swap = nargv[pos]; + /* LINTED const cast */ + ((char **) nargv)[pos] = nargv[cstart]; + /* LINTED const cast */ + ((char **)nargv)[cstart] = swap; + } + } +} + +/* + * parse_long_options -- + * Parse long options in argc/argv argument vector. + * Returns -1 if short_too is set and the option does not match long_options. + */ +static int +parse_long_options(char * const *nargv, const char *options, + const struct option *long_options, int *idx, int short_too) +{ + char *current_argv, *has_equal; + size_t current_argv_len; + int i, match; + + current_argv = place; + match = -1; + + optind++; + + if ((has_equal = strchr(current_argv, '=')) != NULL) { + /* argument found (--option=arg) */ + current_argv_len = has_equal - current_argv; + has_equal++; + } else + current_argv_len = strlen(current_argv); + + for (i = 0; long_options[i].name; i++) { + /* find matching long option */ + if (strncmp(current_argv, long_options[i].name, + current_argv_len)) + continue; + + if (strlen(long_options[i].name) == current_argv_len) { + /* exact match */ + match = i; + break; + } + /* + * If this is a known short option, don't allow + * a partial match of a single character. + */ + if (short_too && current_argv_len == 1) + continue; + + if (match == -1) /* partial match */ + match = i; + else { + /* ambiguous abbreviation */ + if (PRINT_ERROR) + warnx(ambig, (int)current_argv_len, + current_argv); + optopt = 0; + return (BADCH); + } + } + if (match != -1) { /* option found */ + if (long_options[match].has_arg == no_argument + && has_equal) { + if (PRINT_ERROR) + warnx(noarg, (int)current_argv_len, + current_argv); + /* + * XXX: GNU sets optopt to val regardless of flag + */ + if (long_options[match].flag == NULL) + optopt = long_options[match].val; + else + optopt = 0; + return (BADARG); + } + if (long_options[match].has_arg == required_argument || + long_options[match].has_arg == optional_argument) { + if (has_equal) + optarg = has_equal; + else if (long_options[match].has_arg == + required_argument) { + /* + * optional argument doesn't use next nargv + */ + optarg = nargv[optind++]; + } + } + if ((long_options[match].has_arg == required_argument) + && (optarg == NULL)) { + /* + * Missing argument; leading ':' indicates no error + * should be generated. + */ + if (PRINT_ERROR) + warnx(recargstring, + current_argv); + /* + * XXX: GNU sets optopt to val regardless of flag + */ + if (long_options[match].flag == NULL) + optopt = long_options[match].val; + else + optopt = 0; + --optind; + return (BADARG); + } + } else { /* unknown option */ + if (short_too) { + --optind; + return (-1); + } + if (PRINT_ERROR) + warnx(illoptstring, current_argv); + optopt = 0; + return (BADCH); + } + if (idx) + *idx = match; + if (long_options[match].flag) { + *long_options[match].flag = long_options[match].val; + return (0); + } else + return (long_options[match].val); +} + +/* + * getopt_internal -- + * Parse argc/argv argument vector. Called by user level routines. + */ +static int +getopt_internal(int nargc, char * const *nargv, const char *options, + const struct option *long_options, int *idx, int flags) +{ + char *oli; /* option letter list index */ + int optchar, short_too; + static int posixly_correct = -1; + + if (options == NULL) + return (-1); + + /* + * XXX Some GNU programs (like cvs) set optind to 0 instead of + * XXX using optreset. Work around this braindamage. + */ + if (optind == 0) + optind = optreset = 1; + + /* + * Disable GNU extensions if POSIXLY_CORRECT is set or options + * string begins with a '+'. + */ + if (posixly_correct == -1 || optreset) + posixly_correct = (getenv("POSIXLY_CORRECT") != NULL); + if (*options == '-') + flags |= FLAG_ALLARGS; + else if (posixly_correct || *options == '+') + flags &= ~FLAG_PERMUTE; + if (*options == '+' || *options == '-') + options++; + + optarg = NULL; + if (optreset) + nonopt_start = nonopt_end = -1; +start: + if (optreset || !*place) { /* update scanning pointer */ + optreset = 0; + if (optind >= nargc) { /* end of argument vector */ + place = EMSG; + if (nonopt_end != -1) { + /* do permutation, if we have to */ + permute_args(nonopt_start, nonopt_end, + optind, nargv); + optind -= nonopt_end - nonopt_start; + } + else if (nonopt_start != -1) { + /* + * If we skipped non-options, set optind + * to the first of them. + */ + optind = nonopt_start; + } + nonopt_start = nonopt_end = -1; + return (-1); + } + if (*(place = nargv[optind]) != '-' || + (place[1] == '\0' && strchr(options, '-') == NULL)) { + place = EMSG; /* found non-option */ + if (flags & FLAG_ALLARGS) { + /* + * GNU extension: + * return non-option as argument to option 1 + */ + optarg = nargv[optind++]; + return (INORDER); + } + if (!(flags & FLAG_PERMUTE)) { + /* + * If no permutation wanted, stop parsing + * at first non-option. + */ + return (-1); + } + /* do permutation */ + if (nonopt_start == -1) + nonopt_start = optind; + else if (nonopt_end != -1) { + permute_args(nonopt_start, nonopt_end, + optind, nargv); + nonopt_start = optind - + (nonopt_end - nonopt_start); + nonopt_end = -1; + } + optind++; + /* process next argument */ + goto start; + } + if (nonopt_start != -1 && nonopt_end == -1) + nonopt_end = optind; + + /* + * If we have "-" do nothing, if "--" we are done. + */ + if (place[1] != '\0' && *++place == '-' && place[1] == '\0') { + optind++; + place = EMSG; + /* + * We found an option (--), so if we skipped + * non-options, we have to permute. + */ + if (nonopt_end != -1) { + permute_args(nonopt_start, nonopt_end, + optind, nargv); + optind -= nonopt_end - nonopt_start; + } + nonopt_start = nonopt_end = -1; + return (-1); + } + } + + /* + * Check long options if: + * 1) we were passed some + * 2) the arg is not just "-" + * 3) either the arg starts with -- we are getopt_long_only() + */ + if (long_options != NULL && place != nargv[optind] && + (*place == '-' || (flags & FLAG_LONGONLY))) { + short_too = 0; + if (*place == '-') + place++; /* --foo long option */ + else if (*place != ':' && strchr(options, *place) != NULL) + short_too = 1; /* could be short option too */ + + optchar = parse_long_options(nargv, options, long_options, + idx, short_too); + if (optchar != -1) { + place = EMSG; + return (optchar); + } + } + + if ((optchar = (int)*place++) == (int)':' || + (optchar == (int)'-' && *place != '\0') || + (oli = strchr(options, optchar)) == NULL) { + /* + * If the user specified "-" and '-' isn't listed in + * options, return -1 (non-option) as per POSIX. + * Otherwise, it is an unknown option character (or ':'). + */ + if (optchar == (int)'-' && *place == '\0') + return (-1); + if (!*place) + ++optind; + if (PRINT_ERROR) + warnx(illoptchar, optchar); + optopt = optchar; + return (BADCH); + } + if (long_options != NULL && optchar == 'W' && oli[1] == ';') { + /* -W long-option */ + if (*place) /* no space */ + /* NOTHING */; + else if (++optind >= nargc) { /* no arg */ + place = EMSG; + if (PRINT_ERROR) + warnx(recargchar, optchar); + optopt = optchar; + return (BADARG); + } else /* white space */ + place = nargv[optind]; + optchar = parse_long_options(nargv, options, long_options, + idx, 0); + place = EMSG; + return (optchar); + } + if (*++oli != ':') { /* doesn't take argument */ + if (!*place) + ++optind; + } else { /* takes (optional) argument */ + optarg = NULL; + if (*place) /* no white space */ + optarg = place; + else if (oli[1] != ':') { /* arg not optional */ + if (++optind >= nargc) { /* no arg */ + place = EMSG; + if (PRINT_ERROR) + warnx(recargchar, optchar); + optopt = optchar; + return (BADARG); + } else + optarg = nargv[optind]; + } + place = EMSG; + ++optind; + } + /* dump back option letter */ + return (optchar); +} + +/* + * getopt -- + * Parse argc/argv argument vector. + * + * [eventually this will replace the BSD getopt] + */ +int +getopt(int nargc, char * const *nargv, const char *options) +{ + + /* + * We don't pass FLAG_PERMUTE to getopt_internal() since + * the BSD getopt(3) (unlike GNU) has never done this. + * + * Furthermore, since many privileged programs call getopt() + * before dropping privileges it makes sense to keep things + * as simple (and bug-free) as possible. + */ + return (getopt_internal(nargc, nargv, options, NULL, NULL, 0)); +} + +#if 0 +/* + * getopt_long -- + * Parse argc/argv argument vector. + */ +int +getopt_long(int nargc, char * const *nargv, const char *options, + const struct option *long_options, int *idx) +{ + + return (getopt_internal(nargc, nargv, options, long_options, idx, + FLAG_PERMUTE)); +} + +/* + * getopt_long_only -- + * Parse argc/argv argument vector. + */ +int +getopt_long_only(int nargc, char * const *nargv, const char *options, + const struct option *long_options, int *idx) +{ + + return (getopt_internal(nargc, nargv, options, long_options, idx, + FLAG_PERMUTE|FLAG_LONGONLY)); +} +#endif + +#endif /* !defined(HAVE_GETOPT) */ diff --git a/openbsd-compat/openbsd-compat.h b/openbsd-compat/openbsd-compat.h new file mode 100644 index 0000000..9f1ea3e --- /dev/null +++ b/openbsd-compat/openbsd-compat.h @@ -0,0 +1,123 @@ +/* + * Copyright (c) 2018-2021 Yubico AB. All rights reserved. + * Use of this source code is governed by a BSD-style + * license that can be found in the LICENSE file. + * SPDX-License-Identifier: BSD-2-Clause + */ + +#ifndef _OPENBSD_COMPAT_H +#define _OPENBSD_COMPAT_H + +#if defined(_MSC_VER) +#include "types.h" +#endif + +#if defined(HAVE_ENDIAN_H) +#include <endian.h> +#endif + +#if defined(__APPLE__) && !defined(HAVE_ENDIAN_H) +#include <libkern/OSByteOrder.h> +#define be16toh(x) OSSwapBigToHostInt16((x)) +#define htobe16(x) OSSwapHostToBigInt16((x)) +#define be32toh(x) OSSwapBigToHostInt32((x)) +#define htobe32(x) OSSwapHostToBigInt32((x)) +#define htole32(x) OSSwapHostToLittleInt32((x)) +#define htole64(x) OSSwapHostToLittleInt64((x)) +#endif /* __APPLE__ && !HAVE_ENDIAN_H */ + +#if defined(_WIN32) && !defined(HAVE_ENDIAN_H) +#include <stdint.h> +#include <winsock2.h> +#if !defined(_MSC_VER) +#include <sys/param.h> +#endif +#define be16toh(x) ntohs((x)) +#define htobe16(x) htons((x)) +#define be32toh(x) ntohl((x)) +#define htobe32(x) htonl((x)) +uint32_t htole32(uint32_t); +uint64_t htole64(uint64_t); +#endif /* _WIN32 && !HAVE_ENDIAN_H */ + +#if (defined(__FreeBSD__) || defined(__MidnightBSD__)) && !defined(HAVE_ENDIAN_H) +#include <sys/endian.h> +#endif + +#include <stdlib.h> +#include <string.h> + +#if !defined(HAVE_STRLCAT) +size_t strlcat(char *, const char *, size_t); +#endif + +#if !defined(HAVE_STRLCPY) +size_t strlcpy(char *, const char *, size_t); +#endif + +#if !defined(HAVE_STRSEP) +char *strsep(char **, const char *); +#endif + +#if !defined(HAVE_RECALLOCARRAY) +void *recallocarray(void *, size_t, size_t, size_t); +#endif + +#if !defined(HAVE_EXPLICIT_BZERO) +void explicit_bzero(void *, size_t); +#endif + +#if !defined(HAVE_FREEZERO) +void freezero(void *, size_t); +#endif + +#if !defined(HAVE_GETPAGESIZE) +int getpagesize(void); +#endif + +#if !defined(HAVE_TIMINGSAFE_BCMP) +int timingsafe_bcmp(const void *, const void *, size_t); +#endif + +#if !defined(HAVE_READPASSPHRASE) +#include "readpassphrase.h" +#else +#include <readpassphrase.h> +#endif + +#include <openssl/opensslv.h> + +#if !defined(HAVE_ERR_H) +#include "err.h" +#else +#include <err.h> +#endif + +#if !defined(HAVE_GETOPT) +#include "getopt.h" +#else +#include <unistd.h> +#endif + +#if !defined(HAVE_GETLINE) +#include <stdio.h> +ssize_t getline(char **, size_t *, FILE *); +#endif + +#if defined(_MSC_VER) +#define strerror_r(e, b, l) strerror_s((b), (l), (e)) +#endif + +#include "time.h" + +#if !defined(HAVE_POSIX_IOCTL) +#define IOCTL_REQ(x) (x) +#else +#define IOCTL_REQ(x) ((int)(x)) +#endif + +#if !defined(HAVE_ASPRINTF) +int asprintf(char **, const char *, ...); +#endif + +#endif /* !_OPENBSD_COMPAT_H */ diff --git a/openbsd-compat/posix_ioctl_check.c b/openbsd-compat/posix_ioctl_check.c new file mode 100644 index 0000000..599a3bf --- /dev/null +++ b/openbsd-compat/posix_ioctl_check.c @@ -0,0 +1,7 @@ +#include <sys/ioctl.h> + +int +posix_ioctl_check(int fd) +{ + return ioctl(fd, -1, 0); +} diff --git a/openbsd-compat/posix_win.c b/openbsd-compat/posix_win.c new file mode 100644 index 0000000..eac67c2 --- /dev/null +++ b/openbsd-compat/posix_win.c @@ -0,0 +1,61 @@ +/* + * Public domain + * + * File IO compatibility shims + * Brent Cook <bcook@openbsd.org> + */ + +#define NO_REDEF_POSIX_FUNCTIONS + +#include <windows.h> + +#include <errno.h> +#include <io.h> + +#include "posix_win.h" + +int +posix_open(const char *path, ...) +{ + va_list ap; + int mode = 0; + int flags; + + va_start(ap, path); + flags = va_arg(ap, int); + if (flags & O_CREAT) + mode = va_arg(ap, int); + va_end(ap); + + flags |= O_BINARY | O_NOINHERIT; + + return (open(path, flags, mode)); +} + +int +posix_close(int fd) +{ + return (close(fd)); +} + +ssize_t +posix_read(int fd, void *buf, size_t count) +{ + if (count > INT_MAX) { + errno = EINVAL; + return (-1); + } + + return (read(fd, buf, (unsigned int)count)); +} + +ssize_t +posix_write(int fd, const void *buf, size_t count) +{ + if (count > INT_MAX) { + errno = EINVAL; + return (-1); + } + + return (write(fd, buf, (unsigned int)count)); +} diff --git a/openbsd-compat/posix_win.h b/openbsd-compat/posix_win.h new file mode 100644 index 0000000..a1e0888 --- /dev/null +++ b/openbsd-compat/posix_win.h @@ -0,0 +1,47 @@ +/* + * Public domain + * + * BSD socket emulation code for Winsock2 + * Brent Cook <bcook@openbsd.org> + */ + +#ifndef _COMPAT_POSIX_WIN_H +#define _COMPAT_POSIX_WIN_H + +#ifdef _WIN32 + +#include <windows.h> + +#include <errno.h> +#include <stdarg.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#if _MSC_VER >= 1900 +#include <../ucrt/fcntl.h> +#else +#include <../include/fcntl.h> +#endif + +#include "types.h" + +int posix_open(const char *path, ...); + +int posix_close(int fd); + +ssize_t posix_read(int fd, void *buf, size_t count); + +ssize_t posix_write(int fd, const void *buf, size_t count); + +#ifndef NO_REDEF_POSIX_FUNCTIONS +#define open(path, ...) posix_open(path, __VA_ARGS__) +#define close(fd) posix_close(fd) +#define read(fd, buf, count) posix_read(fd, buf, count) +#define write(fd, buf, count) posix_write(fd, buf, count) +#endif + +#endif /* _WIN32 */ + +#endif /* !_COMPAT_POSIX_WIN_H */ diff --git a/openbsd-compat/readpassphrase.c b/openbsd-compat/readpassphrase.c new file mode 100644 index 0000000..8b84190 --- /dev/null +++ b/openbsd-compat/readpassphrase.c @@ -0,0 +1,214 @@ +/* $OpenBSD: readpassphrase.c,v 1.26 2016/10/18 12:47:18 millert Exp $ */ + +/* + * Copyright (c) 2000-2002, 2007, 2010 + * Todd C. Miller <Todd.Miller@courtesan.com> + * + * 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. + * + * Sponsored in part by the Defense Advanced Research Projects + * Agency (DARPA) and Air Force Research Laboratory, Air Force + * Materiel Command, USAF, under agreement number F39502-99-1-0512. + */ + +/* OPENBSD ORIGINAL: lib/libc/gen/readpassphrase.c */ + +#include "openbsd-compat.h" + +#ifndef HAVE_READPASSPHRASE + +#include <termios.h> +#include <signal.h> +#include <ctype.h> +#include <fcntl.h> +#include <errno.h> +#include <string.h> +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#include <paths.h> + +#ifndef _PATH_TTY +# define _PATH_TTY "/dev/tty" +#endif + +#ifndef TCSASOFT +/* If we don't have TCSASOFT define it so that ORing it it below is a no-op. */ +# define TCSASOFT 0 +#endif + +/* SunOS 4.x which lacks _POSIX_VDISABLE, but has VDISABLE */ +#if !defined(_POSIX_VDISABLE) && defined(VDISABLE) +# define _POSIX_VDISABLE VDISABLE +#endif + +static volatile sig_atomic_t signo[NSIG]; + +static void handler(int); + +char * +readpassphrase(const char *prompt, char *buf, size_t bufsiz, int flags) +{ + ssize_t nr; + int input, output, save_errno, i, need_restart; + char ch, *p, *end; + struct termios term, oterm; + struct sigaction sa, savealrm, saveint, savehup, savequit, saveterm; + struct sigaction savetstp, savettin, savettou, savepipe; + + /* I suppose we could alloc on demand in this case (XXX). */ + if (bufsiz == 0) { + errno = EINVAL; + return(NULL); + } + +restart: + for (i = 0; i < NSIG; i++) + signo[i] = 0; + need_restart = 0; + /* + * Read and write to /dev/tty if available. If not, read from + * stdin and write to stderr unless a tty is required. + */ + if ((flags & RPP_STDIN) || + (input = output = open(_PATH_TTY, O_RDWR)) == -1) { + if (flags & RPP_REQUIRE_TTY) { + errno = ENOTTY; + return(NULL); + } + input = STDIN_FILENO; + output = STDERR_FILENO; + } + + /* + * Turn off echo if possible. + * If we are using a tty but are not the foreground pgrp this will + * generate SIGTTOU, so do it *before* installing the signal handlers. + */ + if (input != STDIN_FILENO && tcgetattr(input, &oterm) == 0) { + memcpy(&term, &oterm, sizeof(term)); + if (!(flags & RPP_ECHO_ON)) + term.c_lflag &= ~(ECHO | ECHONL); +#ifdef VSTATUS + if (term.c_cc[VSTATUS] != _POSIX_VDISABLE) + term.c_cc[VSTATUS] = _POSIX_VDISABLE; +#endif + (void)tcsetattr(input, TCSAFLUSH|TCSASOFT, &term); + } else { + memset(&term, 0, sizeof(term)); + term.c_lflag |= ECHO; + memset(&oterm, 0, sizeof(oterm)); + oterm.c_lflag |= ECHO; + } + + /* + * Catch signals that would otherwise cause the user to end + * up with echo turned off in the shell. Don't worry about + * things like SIGXCPU and SIGVTALRM for now. + */ + sigemptyset(&sa.sa_mask); + sa.sa_flags = 0; /* don't restart system calls */ + sa.sa_handler = handler; + (void)sigaction(SIGALRM, &sa, &savealrm); + (void)sigaction(SIGHUP, &sa, &savehup); + (void)sigaction(SIGINT, &sa, &saveint); + (void)sigaction(SIGPIPE, &sa, &savepipe); + (void)sigaction(SIGQUIT, &sa, &savequit); + (void)sigaction(SIGTERM, &sa, &saveterm); + (void)sigaction(SIGTSTP, &sa, &savetstp); + (void)sigaction(SIGTTIN, &sa, &savettin); + (void)sigaction(SIGTTOU, &sa, &savettou); + + if (!(flags & RPP_STDIN)) + (void)write(output, prompt, strlen(prompt)); + end = buf + bufsiz - 1; + p = buf; + while ((nr = read(input, &ch, 1)) == 1 && ch != '\n' && ch != '\r') { + if (p < end) { + if ((flags & RPP_SEVENBIT)) + ch &= 0x7f; + if (isalpha((unsigned char)ch)) { + if ((flags & RPP_FORCELOWER)) + ch = (char)tolower((unsigned char)ch); + if ((flags & RPP_FORCEUPPER)) + ch = (char)toupper((unsigned char)ch); + } + *p++ = ch; + } + } + *p = '\0'; + save_errno = errno; + if (!(term.c_lflag & ECHO)) + (void)write(output, "\n", 1); + + /* Restore old terminal settings and signals. */ + if (memcmp(&term, &oterm, sizeof(term)) != 0) { + const int sigttou = signo[SIGTTOU]; + + /* Ignore SIGTTOU generated when we are not the fg pgrp. */ + while (tcsetattr(input, TCSAFLUSH|TCSASOFT, &oterm) == -1 && + errno == EINTR && !signo[SIGTTOU]) + continue; + signo[SIGTTOU] = sigttou; + } + (void)sigaction(SIGALRM, &savealrm, NULL); + (void)sigaction(SIGHUP, &savehup, NULL); + (void)sigaction(SIGINT, &saveint, NULL); + (void)sigaction(SIGQUIT, &savequit, NULL); + (void)sigaction(SIGPIPE, &savepipe, NULL); + (void)sigaction(SIGTERM, &saveterm, NULL); + (void)sigaction(SIGTSTP, &savetstp, NULL); + (void)sigaction(SIGTTIN, &savettin, NULL); + (void)sigaction(SIGTTOU, &savettou, NULL); + if (input != STDIN_FILENO) + (void)close(input); + + /* + * If we were interrupted by a signal, resend it to ourselves + * now that we have restored the signal handlers. + */ + for (i = 0; i < NSIG; i++) { + if (signo[i]) { + kill(getpid(), i); + switch (i) { + case SIGTSTP: + case SIGTTIN: + case SIGTTOU: + need_restart = 1; + } + } + } + if (need_restart) + goto restart; + + if (save_errno) + errno = save_errno; + return(nr == -1 ? NULL : buf); +} + +#if 0 +char * +getpass(const char *prompt) +{ + static char buf[_PASSWORD_LEN + 1]; + + return(readpassphrase(prompt, buf, sizeof(buf), RPP_ECHO_OFF)); +} +#endif + +static void handler(int s) +{ + + signo[s] = 1; +} +#endif /* HAVE_READPASSPHRASE */ diff --git a/openbsd-compat/readpassphrase.h b/openbsd-compat/readpassphrase.h new file mode 100644 index 0000000..e4451f3 --- /dev/null +++ b/openbsd-compat/readpassphrase.h @@ -0,0 +1,44 @@ +/* $OpenBSD: readpassphrase.h,v 1.5 2003/06/17 21:56:23 millert Exp $ */ + +/* + * Copyright (c) 2000, 2002 Todd C. Miller <Todd.Miller@courtesan.com> + * + * 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. + * + * Sponsored in part by the Defense Advanced Research Projects + * Agency (DARPA) and Air Force Research Laboratory, Air Force + * Materiel Command, USAF, under agreement number F39502-99-1-0512. + */ + +/* OPENBSD ORIGINAL: include/readpassphrase.h */ + +#ifndef _READPASSPHRASE_H_ +#define _READPASSPHRASE_H_ + +#ifndef HAVE_READPASSPHRASE + +#include <stdlib.h> + +#define RPP_ECHO_OFF 0x00 /* Turn off echo (default). */ +#define RPP_ECHO_ON 0x01 /* Leave echo on. */ +#define RPP_REQUIRE_TTY 0x02 /* Fail if there is no tty. */ +#define RPP_FORCELOWER 0x04 /* Force input to lower case. */ +#define RPP_FORCEUPPER 0x08 /* Force input to upper case. */ +#define RPP_SEVENBIT 0x10 /* Strip the high bit from input. */ +#define RPP_STDIN 0x20 /* Read from stdin, not /dev/tty */ + +char * readpassphrase(const char *, char *, size_t, int); + +#endif /* HAVE_READPASSPHRASE */ + +#endif /* !_READPASSPHRASE_H_ */ diff --git a/openbsd-compat/readpassphrase_win32.c b/openbsd-compat/readpassphrase_win32.c new file mode 100644 index 0000000..968987c --- /dev/null +++ b/openbsd-compat/readpassphrase_win32.c @@ -0,0 +1,131 @@ +/* +* Author: Manoj Ampalam <manoj.ampalam@microsoft.com> +* +* Author: Bryan Berns <berns@uwalumni.com> +* Modified group detection use s4u token information +* +* Copyright(c) 2016 Microsoft Corp. +* All rights reserved +* +* Misc Unix POSIX routine implementations for Windows +* +* 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. +* +* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. +*/ + +#define UMDF_USING_NTSTATUS +#define SECURITY_WIN32 +#include <windows.h> +#include <stdio.h> +#include <time.h> +#include <shlwapi.h> +#include <conio.h> +#include <lm.h> +#include <sddl.h> +#include <aclapi.h> +#include <ntsecapi.h> +#include <security.h> +#include <ntstatus.h> +#include <wchar.h> + +#include "openbsd-compat.h" + +#ifndef HAVE_READPASSPHRASE + +/*on error returns NULL and sets errno*/ +static wchar_t * +utf8_to_utf16(const char *utf8) +{ + int needed = 0; + wchar_t* utf16 = NULL; + if ((needed = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0)) == 0 || + (utf16 = malloc(needed * sizeof(wchar_t))) == NULL || + MultiByteToWideChar(CP_UTF8, 0, utf8, -1, utf16, needed) == 0) { + /* debug3("failed to convert utf8 payload:%s error:%d", utf8, GetLastError()); */ + errno = ENOMEM; + return NULL; + } + + return utf16; +} + +char * +readpassphrase(const char *prompt, char *outBuf, size_t outBufLen, int flags) +{ + size_t current_index = 0; + char ch; + wchar_t* wtmp = NULL; + + if (outBufLen == 0) { + errno = EINVAL; + return NULL; + } + + while (_kbhit()) (void)_getch(); + + wtmp = utf8_to_utf16(prompt); + if (wtmp == NULL) + errx(1, "unable to alloc memory"); + + _cputws(wtmp); + free(wtmp); + + while (current_index < outBufLen - 1) { + ch = (char)_getch(); + + if (ch == '\r') { + if (_kbhit()) (void)_getch(); /* read linefeed if its there */ + break; + } else if (ch == '\n') { + break; + } else if (ch == '\b') { /* backspace */ + if (current_index > 0) { + if (flags & RPP_ECHO_ON) + printf_s("%c \b", ch); + + current_index--; /* overwrite last character */ + } + } else if (ch == '\003') { /* exit on Ctrl+C */ + errx(1, ""); + } else { + if (flags & RPP_SEVENBIT) + ch &= 0x7f; + + if (isalpha((unsigned char)ch)) { + if(flags & RPP_FORCELOWER) + ch = (char)tolower((unsigned char)ch); + if(flags & RPP_FORCEUPPER) + ch = (char)toupper((unsigned char)ch); + } + + outBuf[current_index++] = ch; + if(flags & RPP_ECHO_ON) + printf_s("%c", ch); + } + } + + outBuf[current_index] = '\0'; + _cputs("\n"); + + return outBuf; +} + +#endif /* HAVE_READPASSPHRASE */ diff --git a/openbsd-compat/recallocarray.c b/openbsd-compat/recallocarray.c new file mode 100644 index 0000000..5d2f8d9 --- /dev/null +++ b/openbsd-compat/recallocarray.c @@ -0,0 +1,91 @@ +/* $OpenBSD: recallocarray.c,v 1.1 2017/03/06 18:44:21 otto Exp $ */ +/* + * Copyright (c) 2008, 2017 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. + */ + +/* OPENBSD ORIGINAL: lib/libc/stdlib/recallocarray.c */ + +#include "openbsd-compat.h" + +#if !defined(HAVE_RECALLOCARRAY) + +#include <errno.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +/* + * This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX + * if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW + */ +#define MUL_NO_OVERFLOW ((size_t)1 << (sizeof(size_t) * 4)) + +void * +recallocarray(void *ptr, size_t oldnmemb, size_t newnmemb, size_t size) +{ + size_t oldsize, newsize; + void *newptr; + + if (ptr == NULL) + return calloc(newnmemb, size); + + if ((newnmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) && + newnmemb > 0 && SIZE_MAX / newnmemb < size) { + errno = ENOMEM; + return NULL; + } + newsize = newnmemb * size; + + if ((oldnmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) && + oldnmemb > 0 && SIZE_MAX / oldnmemb < size) { + errno = EINVAL; + return NULL; + } + oldsize = oldnmemb * size; + + /* + * Don't bother too much if we're shrinking just a bit, + * we do not shrink for series of small steps, oh well. + */ + if (newsize <= oldsize) { + size_t d = oldsize - newsize; + + if (d < oldsize / 2 && d < (size_t)getpagesize()) { + memset((char *)ptr + newsize, 0, d); + return ptr; + } + } + + newptr = malloc(newsize); + if (newptr == NULL) + return NULL; + + if (newsize > oldsize) { + memcpy(newptr, ptr, oldsize); + memset((char *)newptr + oldsize, 0, newsize - oldsize); + } else + memcpy(newptr, ptr, newsize); + + explicit_bzero(ptr, oldsize); + free(ptr); + + return newptr; +} +/* DEF_WEAK(recallocarray); */ + +#endif /* !defined(HAVE_RECALLOCARRAY) */ diff --git a/openbsd-compat/strlcat.c b/openbsd-compat/strlcat.c new file mode 100644 index 0000000..44470de --- /dev/null +++ b/openbsd-compat/strlcat.c @@ -0,0 +1,63 @@ +/* $OpenBSD: strlcat.c,v 1.13 2005/08/08 08:05:37 espie Exp $ */ + +/* + * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> + * + * 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. + */ + +/* OPENBSD ORIGINAL: lib/libc/string/strlcat.c */ + +#include "openbsd-compat.h" + +#if !defined(HAVE_STRLCAT) + +#include <sys/types.h> +#include <string.h> + +/* + * Appends src to string dst of size siz (unlike strncat, siz is the + * full size of dst, not space left). At most siz-1 characters + * will be copied. Always NUL terminates (unless siz <= strlen(dst)). + * Returns strlen(src) + MIN(siz, strlen(initial dst)). + * If retval >= siz, truncation occurred. + */ +size_t +strlcat(char *dst, const char *src, size_t siz) +{ + char *d = dst; + const char *s = src; + size_t n = siz; + size_t dlen; + + /* Find the end of dst and adjust bytes left but don't go past end */ + while (n-- != 0 && *d != '\0') + d++; + dlen = d - dst; + n = siz - dlen; + + if (n == 0) + return(dlen + strlen(s)); + while (*s != '\0') { + if (n != 1) { + *d++ = *s; + n--; + } + s++; + } + *d = '\0'; + + return(dlen + (s - src)); /* count does not include NUL */ +} + +#endif /* !defined(HAVE_STRLCAT) */ diff --git a/openbsd-compat/strlcpy.c b/openbsd-compat/strlcpy.c new file mode 100644 index 0000000..a8b18ea --- /dev/null +++ b/openbsd-compat/strlcpy.c @@ -0,0 +1,59 @@ +/* $OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $ */ + +/* + * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> + * + * 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. + */ + +/* OPENBSD ORIGINAL: lib/libc/string/strlcpy.c */ + +#include "openbsd-compat.h" + +#if !defined(HAVE_STRLCPY) + +#include <sys/types.h> +#include <string.h> + +/* + * Copy src to string dst of size siz. At most siz-1 characters + * will be copied. Always NUL terminates (unless siz == 0). + * Returns strlen(src); if retval >= siz, truncation occurred. + */ +size_t +strlcpy(char *dst, const char *src, size_t siz) +{ + char *d = dst; + const char *s = src; + size_t n = siz; + + /* Copy as many bytes as will fit */ + if (n != 0) { + while (--n != 0) { + if ((*d++ = *s++) == '\0') + break; + } + } + + /* Not enough room in dst, add NUL and traverse rest of src */ + if (n == 0) { + if (siz != 0) + *d = '\0'; /* NUL-terminate dst */ + while (*s++) + ; + } + + return(s - src - 1); /* count does not include NUL */ +} + +#endif /* !defined(HAVE_STRLCPY) */ diff --git a/openbsd-compat/strsep.c b/openbsd-compat/strsep.c new file mode 100644 index 0000000..578668c --- /dev/null +++ b/openbsd-compat/strsep.c @@ -0,0 +1,79 @@ +/* $OpenBSD: strsep.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */ + +/*- + * Copyright (c) 1990, 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. + */ + +/* OPENBSD ORIGINAL: lib/libc/string/strsep.c */ + +#include "openbsd-compat.h" + +#if !defined(HAVE_STRSEP) + +#include <string.h> +#include <stdio.h> + +/* + * Get next token from string *stringp, where tokens are possibly-empty + * strings separated by characters from delim. + * + * Writes NULs into the string at *stringp to end tokens. + * delim need not remain constant from call to call. + * On return, *stringp points past the last NUL written (if there might + * be further tokens), or is NULL (if there are definitely no more tokens). + * + * If *stringp is NULL, strsep returns NULL. + */ +char * +strsep(char **stringp, const char *delim) +{ + char *s; + const char *spanp; + int c, sc; + char *tok; + + if ((s = *stringp) == NULL) + return (NULL); + for (tok = s;;) { + c = *s++; + spanp = delim; + do { + if ((sc = *spanp++) == c) { + if (c == 0) + s = NULL; + else + s[-1] = 0; + *stringp = s; + return (tok); + } + } while (sc != 0); + } + /* NOTREACHED */ +} + +#endif /* !defined(HAVE_STRSEP) */ diff --git a/openbsd-compat/time.h b/openbsd-compat/time.h new file mode 100644 index 0000000..b125f73 --- /dev/null +++ b/openbsd-compat/time.h @@ -0,0 +1,61 @@ +/* + * Public domain + * sys/time.h compatibility shim + */ + +#if defined(_MSC_VER) && (_MSC_VER >= 1900) +#include <../ucrt/time.h> +#elif defined(_MSC_VER) && (_MSC_VER < 1900) +#include <../include/time.h> +#else +#include <time.h> +#endif + +#ifndef _COMPAT_TIME_H +#define _COMPAT_TIME_H + +#ifndef CLOCK_MONOTONIC +#define CLOCK_MONOTONIC CLOCK_REALTIME +#endif + +#ifndef CLOCK_REALTIME +#define CLOCK_REALTIME 0 +#endif + +#ifndef HAVE_CLOCK_GETTIME +typedef int clockid_t; +int clock_gettime(clockid_t, struct timespec *); +#endif + +#ifdef HAVE_TIMESPECSUB +#include <sys/time.h> +#endif + +#ifndef HAVE_TIMESPECSUB +#define timespecadd(tsp, usp, vsp) \ + do { \ + (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \ + (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \ + if ((vsp)->tv_nsec >= 1000000000L) { \ + (vsp)->tv_sec++; \ + (vsp)->tv_nsec -= 1000000000L; \ + } \ + } while (0) + +#define timespecsub(tsp, usp, vsp) \ + do { \ + (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \ + (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \ + if ((vsp)->tv_nsec < 0) { \ + (vsp)->tv_sec--; \ + (vsp)->tv_nsec += 1000000000L; \ + } \ + } while (0) + +#define timespeccmp(tsp, usp, cmp) \ + (((tsp)->tv_sec == (usp)->tv_sec) ? \ + ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ + ((tsp)->tv_sec cmp (usp)->tv_sec)) +#endif + +#endif /* _COMPAT_TIME_H */ diff --git a/openbsd-compat/timingsafe_bcmp.c b/openbsd-compat/timingsafe_bcmp.c new file mode 100644 index 0000000..3f7b9e5 --- /dev/null +++ b/openbsd-compat/timingsafe_bcmp.c @@ -0,0 +1,35 @@ +/* $OpenBSD: timingsafe_bcmp.c,v 1.1 2010/09/24 13:33:00 matthew Exp $ */ +/* + * Copyright (c) 2010 Damien Miller. All rights reserved. + * + * 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. + */ + +/* OPENBSD ORIGINAL: lib/libc/string/timingsafe_bcmp.c */ + +#include "openbsd-compat.h" + +#if !defined(HAVE_TIMINGSAFE_BCMP) + +int +timingsafe_bcmp(const void *b1, const void *b2, size_t n) +{ + const unsigned char *p1 = b1, *p2 = b2; + int ret = 0; + + for (; n > 0; n--) + ret |= *p1++ ^ *p2++; + return (ret != 0); +} + +#endif /* !defined(HAVE_TIMINGSAFE_BCMP) */ diff --git a/openbsd-compat/types.h b/openbsd-compat/types.h new file mode 100644 index 0000000..6170230 --- /dev/null +++ b/openbsd-compat/types.h @@ -0,0 +1,69 @@ +/* + * Public domain + * sys/types.h compatibility shim + */ + +#ifdef _MSC_VER +#if _MSC_VER >= 1900 +#include <../ucrt/sys/types.h> +#else +#include <../include/sys/types.h> +#endif +#endif + +#ifndef _COMPAT_TYPES_H +#define _COMPAT_TYPES_H + +#include <stdint.h> + +#ifdef __MINGW32__ +#include <_bsd_types.h> +typedef uint32_t in_addr_t; +typedef uint32_t uid_t; +#endif + +#ifdef _MSC_VER +typedef unsigned char u_char; +typedef unsigned short u_short; +typedef unsigned int u_int; +typedef unsigned long u_long; + +#include <basetsd.h> +typedef SSIZE_T ssize_t; + +#ifndef SSIZE_MAX +#ifdef _WIN64 +#define SSIZE_MAX _I64_MAX +#else +#define SSIZE_MAX INT_MAX +#endif +#endif + +#endif + +#if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__bounded__) +# define __bounded__(x, y, z) +#endif + +#ifdef _WIN32 +#define __warn_references(sym,msg) +#else + +#ifndef __warn_references + +#ifndef __STRING +#define __STRING(x) #x +#endif + +#if defined(__GNUC__) && defined (HAS_GNU_WARNING_LONG) +#define __warn_references(sym,msg) \ + __asm__(".section .gnu.warning." __STRING(sym) \ + "\n\t.ascii \"" msg "\"\n\t.text"); +#else +#define __warn_references(sym,msg) +#endif + +#endif /* __warn_references */ +#endif /* _WIN32 */ + +#endif /* !_COMPAT_TYPES_H */ |