dropbear: scpmisc.c annotate

annotate scpmisc.c @ 1060:4c733310c21d nocircbuffer

reword comment for clarity

author	Matt Johnston <matt@ucc.asn.au>
date	Sun, 01 Mar 2015 23:26:42 +0800
parents	49f68a7b7a55
children	952624727411

rev	line source
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /*
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 * Copyright (c) 2000 Markus Friedl. All rights reserved.
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * 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	5 * modification, are permitted provided that the following conditions
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 * are met:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * 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	8 * 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	9 * 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	10 * 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	11 * 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	12 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 * 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	14 * 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	15 * 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	16 * 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	17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 * 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	19 * 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	20 * 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	21 * (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	22 * 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	23 */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24
38 5c6f9d27ea1c get rid of the substitution... We want a fixed identifier Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	25 /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	26
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 /* For xmalloc, xfree etc:
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 * Author: Tatu Ylonen <[email protected]>
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 * 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	30 * All rights reserved
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 * 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	32 * 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	33 *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 * 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	35 * 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	36 * 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	37 * 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	38 * 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	39 */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40
38 5c6f9d27ea1c get rid of the substitution... We want a fixed identifier Matt Johnston <matt@ucc.asn.au> parents: 4 diff changeset	41 /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	42
725 49f68a7b7a55 Define _GNU_SOURCE for vasprintf Matt Johnston <matt@ucc.asn.au> parents: 287 diff changeset	43 #define _GNU_SOURCE
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 #include "includes.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 #include "scpmisc.h"
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 void *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 xmalloc(size_t size)
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 *ptr;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 if (size == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 fprintf(stderr, "xmalloc: zero size\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 exit(EXIT_FAILURE);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 ptr = malloc(size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57 if (ptr == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 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	59 exit(EXIT_FAILURE);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 return ptr;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62 }
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 void *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 xrealloc(void *ptr, size_t new_size)
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 *new_ptr;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 if (new_size == 0) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 fprintf(stderr, "xrealloc: zero size\n");
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 exit(EXIT_FAILURE);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 if (ptr == NULL)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 new_ptr = malloc(new_size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 else
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 new_ptr = realloc(ptr, new_size);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 if (new_ptr == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 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	79 exit(EXIT_FAILURE);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 return new_ptr;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 }
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 void
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 xfree(void *ptr)
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 if (ptr == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88 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	89 exit(EXIT_FAILURE);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91 free(ptr);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 }
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 char *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 xstrdup(const char *str)
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 size_t len;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 char *cp;
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 len = strlen(str) + 1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 cp = xmalloc(len);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102 strncpy(cp, str, len);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103 return cp;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 char *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 cleanhostname(char *host)
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 if (*host == '[' && host[strlen(host) - 1] == ']') {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110 host[strlen(host) - 1] = '\0';
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 return (host + 1);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 } else
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113 return host;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 char *
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 colon(char *cp)
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 int flag = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121 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	122 return (0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123 if (*cp == '[')
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 flag = 1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 for (; *cp; ++cp) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 if (cp == '@' && (cp+1) == '[')
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 flag = 1;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 if (cp == ']' && (cp+1) == ':' && flag)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 return (cp+1);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 if (*cp == ':' && !flag)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 return (cp);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 if (*cp == '/')
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 return (0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 }
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 return (0);
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 }
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 /* function to assist building execv() arguments */
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 void
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141 addargs(arglist args, char fmt, ...)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 va_list ap;
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	144 char *cp;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	145 u_int nalloc;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	146 int r;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 va_start(ap, fmt);
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	149 r = vasprintf(&cp, fmt, ap);
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 va_end(ap);
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	151 if (r == -1)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	152 fatal("addargs: argument too long");
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154 nalloc = args->nalloc;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155 if (args->list == NULL) {
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 nalloc = 32;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 args->num = 0;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 } else if (args->num+2 >= nalloc)
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159 nalloc *= 2;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 args->list = xrealloc(args->list, nalloc * sizeof(char *));
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162 args->nalloc = nalloc;
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	163 args->list[args->num++] = cp;
4 fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164 args->list[args->num] = NULL;
fe6bca95afa7 Makefile.in contains updated files required Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 }
287 b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	166
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	167 void
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	168 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	169 {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	170 va_list ap;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	171 char *cp;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	172 int r;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	173
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	174 va_start(ap, fmt);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	175 r = vasprintf(&cp, fmt, ap);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	176 va_end(ap);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	177 if (r == -1)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	178 fatal("replacearg: argument too long");
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	179
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	180 if (which >= args->num)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	181 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	182 which, args->num);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	183 xfree(args->list[which]);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	184 args->list[which] = cp;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	185 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	186
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	187 void
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	188 freeargs(arglist *args)
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 u_int i;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	191
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	192 if (args->list != NULL) {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	193 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	194 xfree(args->list[i]);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	195 xfree(args->list);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	196 args->nalloc = args->num = 0;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	197 args->list = NULL;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	198 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	199 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	200
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 * 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	203 * 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	204 */
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	205 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	206 {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	207 char *p;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	208
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	209 if (argv0 == NULL)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	210 return ("unknown"); /* XXX */
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	211 p = strrchr(argv0, '/');
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	212 if (p == NULL)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	213 p = argv0;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	214 else
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	215 p++;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	216
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	217 return (xstrdup(p));
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	218 }
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 void fatal(char* fmt,...)
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 va_list args;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	223 va_start(args, fmt);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	224 vfprintf(stderr, fmt, args);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	225 va_end(args);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	226 exit(255);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	227 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	228
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	229 void
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	230 sanitise_stdfd(void)
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 int nullfd, dupfd;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	233
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	234 if ((nullfd = dupfd = open(_PATH_DEVNULL, O_RDWR)) == -1) {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	235 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	236 exit(1);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	237 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	238 while (++dupfd <= 2) {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	239 /* Only clobber closed fds */
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	240 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	241 continue;
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	242 if (dup2(nullfd, dupfd) == -1) {
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	243 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	244 exit(1);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	245 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	246 }
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	247 if (nullfd > 2)
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	248 close(nullfd);
b72f98803e46 Update to scp from OpenSSH portable 4.3p2 Matt Johnston <matt@ucc.asn.au> parents: 38 diff changeset	249 }

Mercurial > dropbear

annotate scpmisc.c @ 1060:4c733310c21d nocircbuffer