dropbear: scpmisc.c annotate

annotate scpmisc.c @ 1802:19b28d2fbe30

fuzz: handle errors from wrapfd_new_dummy()

author	Matt Johnston <matt@ucc.asn.au>
date	Sat, 06 Mar 2021 22:58:57 +0800
parents	9579377b5f8b
children

rev	line source
1226 952624727411 Add note about OpenSSH origin Matt Johnston <matt@ucc.asn.au> parents: 725 diff changeset	1 /* Dropbear Note: This file is based on OpenSSH 4.3p2. Avoid unnecessary
952624727411 Add note about OpenSSH origin Matt Johnston <matt@ucc.asn.au> parents: 725 diff changeset	2 changes to simplify future updates */
952624727411 Add note about OpenSSH origin Matt Johnston <matt@ucc.asn.au> parents: 725 diff changeset	3
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 /*
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 * Copyright (c) 2000 Markus Friedl. All rights reserved.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * Redistribution and use in source and binary forms, with or without
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 * modification, are permitted provided that the following conditions
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 * are met:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 * 1. Redistributions of source code must retain the above copyright
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 * notice, this list of conditions and the following disclaimer.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 * 2. Redistributions in binary form must reproduce the above copyright
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 * notice, this list of conditions and the following disclaimer in the
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 * documentation and/or other materials provided with the distribution.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27
38 5c6f9d27ea1c get rid of the substitution... We want a fixed identifier Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	28 /RCSID("OpenBSD: misc.c,v 1.22 2003/09/18 08:49:45 markus Exp ");/
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 /* For xmalloc, xfree etc:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 * Author: Tatu Ylonen <[email protected]>
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 * Copyright (c) 1995 Tatu Ylonen <[email protected]>, Espoo, Finland
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 * All rights reserved
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 * Versions of malloc and friends that check their results, and never return
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 * failure (they call fatal if they encounter an error).
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 * As far as I am concerned, the code I have written for this software
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 * can be used freely for any purpose. Any derived versions of this
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 * software must be clearly marked as such, and if the derived work is
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 * incompatible with the protocol description in the RFC file, it must be
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 * called by a name other than "ssh" or "Secure Shell".
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43
38 5c6f9d27ea1c get rid of the substitution... We want a fixed identifier Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	44 /RCSID("OpenBSD: xmalloc.c,v 1.16 2001/07/23 18:21:46 stevesk Exp ");/
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45
725 49f68a7b7a55 Define _GNU_SOURCE for vasprintf Matt Johnston <matt@ucc.asn.au> parents: 287 diff changeset	46 #define _GNU_SOURCE
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 #include "includes.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 #include "scpmisc.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 void *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 xmalloc(size_t size)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 void *ptr;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 if (size == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 fprintf(stderr, "xmalloc: zero size\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57 exit(EXIT_FAILURE);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59 ptr = malloc(size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 if (ptr == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 fprintf(stderr, "xmalloc: out of memory (allocating %lu bytes)\n", (u_long) size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62 exit(EXIT_FAILURE);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 return ptr;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 void *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68 xrealloc(void *ptr, size_t new_size)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 void *new_ptr;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 if (new_size == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 fprintf(stderr, "xrealloc: zero size\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 exit(EXIT_FAILURE);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 if (ptr == NULL)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 new_ptr = malloc(new_size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 else
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79 new_ptr = realloc(ptr, new_size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80 if (new_ptr == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 fprintf(stderr, "xrealloc: out of memory (new_size %lu bytes)\n", (u_long) new_size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 exit(EXIT_FAILURE);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84 return new_ptr;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 void
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88 xfree(void *ptr)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89 {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90 if (ptr == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91 fprintf(stderr, "xfree: NULL pointer given as argument\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 exit(EXIT_FAILURE);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94 free(ptr);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 char *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 xstrdup(const char *str)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 size_t len;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 char *cp;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103 len = strlen(str) + 1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 cp = xmalloc(len);
1630 9579377b5f8b use strlcpy & strlcat (#74) François Perrad <francois.perrad@gadz.org> parents: 1387 diff changeset	105 strlcpy(cp, str, len);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 return cp;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 char *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110 cleanhostname(char *host)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 if (*host == '[' && host[strlen(host) - 1] == ']') {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113 host[strlen(host) - 1] = '\0';
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 return (host + 1);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115 } else
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 return host;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	118
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	119 char *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120 colon(char *cp)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121 {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122 int flag = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 if (cp == ':') / Leading colon is part of file name. */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 return (0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 if (*cp == '[')
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 flag = 1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 for (; *cp; ++cp) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 if (cp == '@' && (cp+1) == '[')
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 flag = 1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 if (cp == ']' && (cp+1) == ':' && flag)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 return (cp+1);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 if (*cp == ':' && !flag)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 return (cp);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 if (*cp == '/')
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 return (0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 return (0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 /* function to assist building execv() arguments */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 void
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 addargs(arglist args, char fmt, ...)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145 {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146 va_list ap;
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	147 char *cp;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	148 u_int nalloc;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	149 int r;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 va_start(ap, fmt);
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	152 r = vasprintf(&cp, fmt, ap);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 va_end(ap);
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	154 if (r == -1)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	155 fatal("addargs: argument too long");
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 nalloc = args->nalloc;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 if (args->list == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159 nalloc = 32;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160 args->num = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 } else if (args->num+2 >= nalloc)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162 nalloc *= 2;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164 args->list = xrealloc(args->list, nalloc * sizeof(char *));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 args->nalloc = nalloc;
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	166 args->list[args->num++] = cp;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167 args->list[args->num] = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	168 }
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	169
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	170 void
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	171 replacearg(arglist args, u_int which, char fmt, ...)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	172 {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	173 va_list ap;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	174 char *cp;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	175 int r;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	176
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	177 va_start(ap, fmt);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	178 r = vasprintf(&cp, fmt, ap);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	179 va_end(ap);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	180 if (r == -1)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	181 fatal("replacearg: argument too long");
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	182
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	183 if (which >= args->num)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	184 fatal("replacearg: tried to replace invalid arg %d >= %d",
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	185 which, args->num);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	186 xfree(args->list[which]);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	187 args->list[which] = cp;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	188 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	189
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	190 void
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	191 freeargs(arglist *args)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	192 {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	193 u_int i;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	194
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	195 if (args->list != NULL) {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	196 for (i = 0; i < args->num; i++)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	197 xfree(args->list[i]);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	198 xfree(args->list);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	199 args->nalloc = args->num = 0;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	200 args->list = NULL;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	201 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	202 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	203
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	204 /*
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	205 * NB. duplicate __progname in case it is an alias for argv[0]
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	206 * Otherwise it may get clobbered by setproctitle()
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	207 */
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	208 char ssh_get_progname(char argv0)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	209 {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	210 char *p;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	211
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	212 if (argv0 == NULL)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	213 return ("unknown"); /* XXX */
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	214 p = strrchr(argv0, '/');
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	215 if (p == NULL)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	216 p = argv0;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	217 else
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	218 p++;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	219
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	220 return (xstrdup(p));
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	221 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	222
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	223 void fatal(char* fmt,...)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	224 {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	225 va_list args;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	226 va_start(args, fmt);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	227 vfprintf(stderr, fmt, args);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	228 va_end(args);
1227 5dde22e8a189 scp: Have `fatal()' append a newline to the message Michael Witten <mfwitten@gmail.com> parents: 1226 diff changeset	229 fputc('\n', stderr);
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	230 exit(255);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	231 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	232
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	233 void
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	234 sanitise_stdfd(void)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	235 {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	236 int nullfd, dupfd;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	237
1387 e7f11ed5fe28 Use DROPBEAR_PATH_DEVNULL instead of undefined _PATH_DEVNULL Ben Gardner <bgardner@wabtec.com> parents: 1227 diff changeset	238 if ((nullfd = dupfd = open(DROPBEAR_PATH_DEVNULL, O_RDWR)) == -1) {
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	239 fprintf(stderr, "Couldn't open /dev/null: %s", strerror(errno));
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	240 exit(1);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	241 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	242 while (++dupfd <= 2) {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	243 /* Only clobber closed fds */
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	244 if (fcntl(dupfd, F_GETFL, 0) >= 0)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	245 continue;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	246 if (dup2(nullfd, dupfd) == -1) {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	247 fprintf(stderr, "dup2: %s", strerror(errno));
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	248 exit(1);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	249 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	250 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	251 if (nullfd > 2)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	252 close(nullfd);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	253 }

Mercurial > dropbear

annotate scpmisc.c @ 1802:19b28d2fbe30