blob: 1734da8f4adb4d09e7c1f6074457a20a2d1238cb [file] [log] [blame]
Darren Tucker9b439c12008-01-01 20:33:57 +11001/* $OpenBSD: scp.c,v 1.162 2008/01/01 09:06:39 dtucker Exp $ */
Damien Millerd4a8b7e1999-10-27 13:42:43 +10002/*
Damien Millere4340be2000-09-16 13:29:08 +11003 * scp - secure remote copy. This is basically patched BSD rcp which
4 * uses ssh to do the data transfer (instead of using rcmd).
Damien Miller4af51302000-04-16 11:18:38 +10005 *
Damien Millere4340be2000-09-16 13:29:08 +11006 * NOTE: This version should NOT be suid root. (This uses ssh to
7 * do the transfer and ssh has the necessary privileges.)
Damien Miller4af51302000-04-16 11:18:38 +10008 *
Damien Miller95def091999-11-25 00:26:21 +11009 * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
Damien Miller4af51302000-04-16 11:18:38 +100010 *
Damien Millere4340be2000-09-16 13:29:08 +110011 * As far as I am concerned, the code I have written for this software
12 * can be used freely for any purpose. Any derived versions of this
13 * software must be clearly marked as such, and if the derived work is
14 * incompatible with the protocol description in the RFC file, it must be
15 * called by a name other than "ssh" or "Secure Shell".
16 */
17/*
Ben Lindstrom92a2e382001-03-05 06:59:27 +000018 * Copyright (c) 1999 Theo de Raadt. All rights reserved.
19 * Copyright (c) 1999 Aaron Campbell. All rights reserved.
Damien Millere4340be2000-09-16 13:29:08 +110020 *
21 * Redistribution and use in source and binary forms, with or without
22 * modification, are permitted provided that the following conditions
23 * are met:
24 * 1. Redistributions of source code must retain the above copyright
25 * notice, this list of conditions and the following disclaimer.
26 * 2. Redistributions in binary form must reproduce the above copyright
27 * notice, this list of conditions and the following disclaimer in the
28 * documentation and/or other materials provided with the distribution.
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
31 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
33 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
34 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
35 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
39 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100041
42/*
Damien Millerad833b32000-08-23 10:46:23 +100043 * Parts from:
44 *
Damien Millerd4a8b7e1999-10-27 13:42:43 +100045 * Copyright (c) 1983, 1990, 1992, 1993, 1995
46 * The Regents of the University of California. All rights reserved.
47 *
48 * Redistribution and use in source and binary forms, with or without
49 * modification, are permitted provided that the following conditions
50 * are met:
51 * 1. Redistributions of source code must retain the above copyright
52 * notice, this list of conditions and the following disclaimer.
53 * 2. Redistributions in binary form must reproduce the above copyright
54 * notice, this list of conditions and the following disclaimer in the
55 * documentation and/or other materials provided with the distribution.
Damien Millerdafb12e2003-06-03 13:06:18 +100056 * 3. Neither the name of the University nor the names of its contributors
Damien Millerd4a8b7e1999-10-27 13:42:43 +100057 * may be used to endorse or promote products derived from this software
58 * without specific prior written permission.
59 *
60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
70 * SUCH DAMAGE.
71 *
Damien Millerd4a8b7e1999-10-27 13:42:43 +100072 */
73
74#include "includes.h"
Damien Miller9cf6d072006-03-15 11:29:24 +110075
76#include <sys/types.h>
Damien Miller8dbffe72006-08-05 11:02:17 +100077#include <sys/param.h>
Damien Millerf17883e2006-03-15 11:45:54 +110078#ifdef HAVE_SYS_STAT_H
79# include <sys/stat.h>
80#endif
Darren Tuckerccb13ee2008-02-29 15:07:01 +110081#ifdef HAVE_SYS_POLL_H
Damien Millerc77cadb2007-10-26 15:39:15 +100082# include <sys/poll.h>
Darren Tuckerccb13ee2008-02-29 15:07:01 +110083#endif
Damien Miller9aec9192006-08-05 10:57:45 +100084#ifdef HAVE_SYS_TIME_H
85# include <sys/time.h>
86#endif
Damien Miller9cf6d072006-03-15 11:29:24 +110087#include <sys/wait.h>
Damien Millerd7834352006-08-05 12:39:39 +100088#include <sys/uio.h>
Damien Miller88f254b2006-03-15 11:25:13 +110089
Damien Millerc7b06362006-03-15 11:53:45 +110090#include <ctype.h>
Damien Miller88f254b2006-03-15 11:25:13 +110091#include <dirent.h>
Darren Tucker39972492006-07-12 22:22:46 +100092#include <errno.h>
Damien Miller57cf6382006-07-10 21:13:46 +100093#include <fcntl.h>
Damien Miller9f2abc42006-07-10 20:53:08 +100094#include <pwd.h>
Damien Miller6ff3cad2006-03-15 11:52:09 +110095#include <signal.h>
Darren Tucker5d196262006-07-12 22:15:16 +100096#include <stdarg.h>
Damien Millera7a73ee2006-08-05 11:37:59 +100097#include <stdio.h>
Damien Millere7a1e5c2006-08-05 11:34:19 +100098#include <stdlib.h>
Damien Millere3476ed2006-07-24 14:13:33 +100099#include <string.h>
Damien Miller5598b4f2006-07-24 14:09:40 +1000100#include <time.h>
Damien Millere6b3b612006-07-24 14:01:23 +1000101#include <unistd.h>
Darren Tuckerbed63112007-06-13 00:02:07 +1000102#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H)
103#include <vis.h>
104#endif
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000105
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000106#include "xmalloc.h"
Ben Lindstrom226cfa02001-01-22 05:34:40 +0000107#include "atomicio.h"
108#include "pathnames.h"
109#include "log.h"
Kevin Steves93c17d92001-02-18 03:55:16 +0000110#include "misc.h"
Damien Miller62d57f62003-01-10 21:43:24 +1100111#include "progressmeter.h"
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000112
Ben Lindstrom49a79c02000-11-17 03:47:20 +0000113extern char *__progname;
Ben Lindstrom49a79c02000-11-17 03:47:20 +0000114
Damien Millerc77cadb2007-10-26 15:39:15 +1000115#define COPY_BUFLEN 16384
116
Damien Miller07aa1322006-04-23 12:04:27 +1000117int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout);
118
Damien Millerff74d742003-01-24 11:36:58 +1100119void bwlimit(int);
120
Ben Lindstrom387c4722001-05-08 20:27:25 +0000121/* Struct for addargs */
122arglist args;
Damien Miller874d77b2000-10-14 16:23:11 +1100123
Damien Millerff74d742003-01-24 11:36:58 +1100124/* Bandwidth limit */
Damien Miller4da295c2003-11-22 14:39:04 +1100125off_t limit_rate = 0;
Damien Millerff74d742003-01-24 11:36:58 +1100126
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000127/* Name of current file being transferred. */
128char *curfile;
129
130/* This is set to non-zero to enable verbose mode. */
Damien Miller95def091999-11-25 00:26:21 +1100131int verbose_mode = 0;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000132
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000133/* This is set to zero if the progressmeter is not desired. */
134int showprogress = 1;
135
Damien Millerad833b32000-08-23 10:46:23 +1000136/* This is the program to execute for the secured connection. ("ssh" or -S) */
Darren Tuckere5662302007-12-02 22:48:40 +1100137char *ssh_program = _PATH_SSH_PROGRAM;
Damien Millerad833b32000-08-23 10:46:23 +1000138
Ben Lindstrom007eb912002-11-09 15:54:08 +0000139/* This is used to store the pid of ssh_program */
Damien Millerb69aaa82003-06-04 22:51:24 +1000140pid_t do_cmd_pid = -1;
141
142static void
143killchild(int signo)
144{
Darren Tuckerba66df82005-01-24 21:57:40 +1100145 if (do_cmd_pid > 1) {
Darren Tuckerfc4f2dd2005-06-01 23:01:12 +1000146 kill(do_cmd_pid, signo ? signo : SIGTERM);
Darren Tuckerba66df82005-01-24 21:57:40 +1100147 waitpid(do_cmd_pid, NULL, 0);
148 }
Damien Millerb69aaa82003-06-04 22:51:24 +1000149
Darren Tuckerfc4f2dd2005-06-01 23:01:12 +1000150 if (signo)
151 _exit(1);
152 exit(1);
Damien Millerb69aaa82003-06-04 22:51:24 +1000153}
Ben Lindstrom007eb912002-11-09 15:54:08 +0000154
Damien Miller3eec6b72006-01-31 21:49:27 +1100155static int
156do_local_cmd(arglist *a)
157{
158 u_int i;
159 int status;
160 pid_t pid;
161
162 if (a->num == 0)
163 fatal("do_local_cmd: no arguments");
164
165 if (verbose_mode) {
166 fprintf(stderr, "Executing:");
167 for (i = 0; i < a->num; i++)
168 fprintf(stderr, " %s", a->list[i]);
169 fprintf(stderr, "\n");
170 }
171 if ((pid = fork()) == -1)
172 fatal("do_local_cmd: fork: %s", strerror(errno));
173
174 if (pid == 0) {
175 execvp(a->list[0], a->list);
176 perror(a->list[0]);
177 exit(1);
178 }
179
180 do_cmd_pid = pid;
181 signal(SIGTERM, killchild);
182 signal(SIGINT, killchild);
183 signal(SIGHUP, killchild);
184
185 while (waitpid(pid, &status, 0) == -1)
186 if (errno != EINTR)
187 fatal("do_local_cmd: waitpid: %s", strerror(errno));
188
189 do_cmd_pid = -1;
190
191 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
192 return (-1);
193
194 return (0);
195}
196
Damien Miller5428f641999-11-25 11:54:57 +1100197/*
198 * This function executes the given command as the specified user on the
199 * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
200 * assigns the input and output file descriptors on success.
201 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000202
Damien Miller4af51302000-04-16 11:18:38 +1000203int
Damien Miller07aa1322006-04-23 12:04:27 +1000204do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000205{
Damien Miller95def091999-11-25 00:26:21 +1100206 int pin[2], pout[2], reserved[2];
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000207
Damien Miller95def091999-11-25 00:26:21 +1100208 if (verbose_mode)
Ben Lindstrom2772a3f2001-08-06 21:17:12 +0000209 fprintf(stderr,
210 "Executing: program %s host %s, user %s, command %s\n",
211 ssh_program, host,
212 remuser ? remuser : "(unspecified)", cmd);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000213
Damien Miller5428f641999-11-25 11:54:57 +1100214 /*
215 * Reserve two descriptors so that the real pipes won't get
216 * descriptors 0 and 1 because that will screw up dup2 below.
217 */
Damien Miller40b59852006-06-13 13:00:25 +1000218 if (pipe(reserved) < 0)
219 fatal("pipe: %s", strerror(errno));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000220
Damien Miller95def091999-11-25 00:26:21 +1100221 /* Create a socket pair for communicating with ssh. */
222 if (pipe(pin) < 0)
223 fatal("pipe: %s", strerror(errno));
224 if (pipe(pout) < 0)
225 fatal("pipe: %s", strerror(errno));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000226
Damien Miller95def091999-11-25 00:26:21 +1100227 /* Free the reserved descriptors. */
228 close(reserved[0]);
229 close(reserved[1]);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000230
Damien Millerb2cdcb52003-06-18 20:26:34 +1000231 /* Fork a child to execute the command on the remote host using ssh. */
Ben Lindstrom007eb912002-11-09 15:54:08 +0000232 do_cmd_pid = fork();
233 if (do_cmd_pid == 0) {
Damien Miller95def091999-11-25 00:26:21 +1100234 /* Child. */
235 close(pin[1]);
236 close(pout[0]);
237 dup2(pin[0], 0);
238 dup2(pout[1], 1);
239 close(pin[0]);
240 close(pout[1]);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000241
Damien Miller3eec6b72006-01-31 21:49:27 +1100242 replacearg(&args, 0, "%s", ssh_program);
Damien Miller874d77b2000-10-14 16:23:11 +1100243 if (remuser != NULL)
Ben Lindstrom387c4722001-05-08 20:27:25 +0000244 addargs(&args, "-l%s", remuser);
245 addargs(&args, "%s", host);
246 addargs(&args, "%s", cmd);
Damien Miller95def091999-11-25 00:26:21 +1100247
Damien Miller874d77b2000-10-14 16:23:11 +1100248 execvp(ssh_program, args.list);
Damien Millerad833b32000-08-23 10:46:23 +1000249 perror(ssh_program);
Damien Miller95def091999-11-25 00:26:21 +1100250 exit(1);
Ben Lindstrom007eb912002-11-09 15:54:08 +0000251 } else if (do_cmd_pid == -1) {
252 fatal("fork: %s", strerror(errno));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000253 }
Damien Miller95def091999-11-25 00:26:21 +1100254 /* Parent. Close the other side, and return the local side. */
255 close(pin[0]);
256 *fdout = pin[1];
257 close(pout[1]);
258 *fdin = pout[0];
Damien Millerb69aaa82003-06-04 22:51:24 +1000259 signal(SIGTERM, killchild);
260 signal(SIGINT, killchild);
261 signal(SIGHUP, killchild);
Damien Miller95def091999-11-25 00:26:21 +1100262 return 0;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000263}
264
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000265typedef struct {
Damien Millereccb9de2005-06-17 12:59:34 +1000266 size_t cnt;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000267 char *buf;
268} BUF;
269
Damien Miller95def091999-11-25 00:26:21 +1100270BUF *allocbuf(BUF *, int, int);
Damien Miller95def091999-11-25 00:26:21 +1100271void lostconn(int);
Damien Miller95def091999-11-25 00:26:21 +1100272int okname(char *);
273void run_err(const char *,...);
274void verifydir(char *);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000275
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000276struct passwd *pwd;
Damien Miller95def091999-11-25 00:26:21 +1100277uid_t userid;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000278int errs, remin, remout;
279int pflag, iamremote, iamrecursive, targetshouldbedirectory;
280
281#define CMDNEEDS 64
282char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
283
Damien Miller95def091999-11-25 00:26:21 +1100284int response(void);
285void rsource(char *, struct stat *);
286void sink(int, char *[]);
287void source(int, char *[]);
288void tolocal(int, char *[]);
289void toremote(char *, int, char *[]);
Damien Millerc77cadb2007-10-26 15:39:15 +1000290size_t scpio(ssize_t (*)(int, void *, size_t), int, void *, size_t, off_t *);
Damien Miller95def091999-11-25 00:26:21 +1100291void usage(void);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000292
293int
Damien Miller65d1f572003-06-04 22:51:08 +1000294main(int argc, char **argv)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000295{
Damien Miller3d1a9f42006-07-10 22:19:53 +1000296 int ch, fflag, tflag, status, n;
Damien Millerff74d742003-01-24 11:36:58 +1100297 double speed;
Damien Miller3d1a9f42006-07-10 22:19:53 +1000298 char *targ, *endp, **newargv;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000299 extern char *optarg;
300 extern int optind;
301
Darren Tuckerce321d82005-10-03 18:11:24 +1000302 /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
303 sanitise_stdfd();
304
Damien Miller3d1a9f42006-07-10 22:19:53 +1000305 /* Copy argv, because we modify it */
306 newargv = xcalloc(MAX(argc + 1, 1), sizeof(*newargv));
307 for (n = 0; n < argc; n++)
308 newargv[n] = xstrdup(argv[n]);
309 argv = newargv;
310
Damien Miller59d3d5b2003-08-22 09:34:41 +1000311 __progname = ssh_get_progname(argv[0]);
Ben Lindstrom49a79c02000-11-17 03:47:20 +0000312
Damien Miller3eec6b72006-01-31 21:49:27 +1100313 memset(&args, '\0', sizeof(args));
Damien Miller874d77b2000-10-14 16:23:11 +1100314 args.list = NULL;
Damien Miller3eec6b72006-01-31 21:49:27 +1100315 addargs(&args, "%s", ssh_program);
Ben Lindstrom387c4722001-05-08 20:27:25 +0000316 addargs(&args, "-x");
Ben Lindstrom4213c552001-09-12 18:45:09 +0000317 addargs(&args, "-oForwardAgent no");
Damien Millerd27b9472005-12-13 19:29:02 +1100318 addargs(&args, "-oPermitLocalCommand no");
Ben Lindstrom2b7a0e92001-09-20 00:57:55 +0000319 addargs(&args, "-oClearAllForwardings yes");
Damien Miller874d77b2000-10-14 16:23:11 +1100320
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000321 fflag = tflag = 0;
Damien Miller8e121472003-01-24 11:37:38 +1100322 while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1)
Damien Miller95def091999-11-25 00:26:21 +1100323 switch (ch) {
324 /* User-visible flags. */
Damien Miller8e121472003-01-24 11:37:38 +1100325 case '1':
326 case '2':
Damien Miller34132e52000-01-14 15:45:46 +1100327 case '4':
Damien Miller34132e52000-01-14 15:45:46 +1100328 case '6':
Damien Miller874d77b2000-10-14 16:23:11 +1100329 case 'C':
Ben Lindstrom387c4722001-05-08 20:27:25 +0000330 addargs(&args, "-%c", ch);
Damien Miller874d77b2000-10-14 16:23:11 +1100331 break;
332 case 'o':
333 case 'c':
334 case 'i':
Ben Lindstrom1e243242001-09-18 05:38:44 +0000335 case 'F':
Ben Lindstrom387c4722001-05-08 20:27:25 +0000336 addargs(&args, "-%c%s", ch, optarg);
Damien Miller874d77b2000-10-14 16:23:11 +1100337 break;
338 case 'P':
Ben Lindstrom387c4722001-05-08 20:27:25 +0000339 addargs(&args, "-p%s", optarg);
Damien Miller874d77b2000-10-14 16:23:11 +1100340 break;
341 case 'B':
Ben Lindstrom387c4722001-05-08 20:27:25 +0000342 addargs(&args, "-oBatchmode yes");
Damien Miller34132e52000-01-14 15:45:46 +1100343 break;
Damien Millerff74d742003-01-24 11:36:58 +1100344 case 'l':
345 speed = strtod(optarg, &endp);
346 if (speed <= 0 || *endp != '\0')
347 usage();
Damien Miller4da295c2003-11-22 14:39:04 +1100348 limit_rate = speed * 1024;
Damien Millerff74d742003-01-24 11:36:58 +1100349 break;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000350 case 'p':
351 pflag = 1;
352 break;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000353 case 'r':
354 iamrecursive = 1;
355 break;
Damien Millerad833b32000-08-23 10:46:23 +1000356 case 'S':
Damien Miller874d77b2000-10-14 16:23:11 +1100357 ssh_program = xstrdup(optarg);
358 break;
359 case 'v':
Ben Lindstrom9cc94642001-06-09 01:15:11 +0000360 addargs(&args, "-v");
Damien Miller874d77b2000-10-14 16:23:11 +1100361 verbose_mode = 1;
362 break;
363 case 'q':
Damien Millerc1f27922003-11-17 21:19:05 +1100364 addargs(&args, "-q");
Damien Miller874d77b2000-10-14 16:23:11 +1100365 showprogress = 0;
Damien Millerad833b32000-08-23 10:46:23 +1000366 break;
367
Damien Miller95def091999-11-25 00:26:21 +1100368 /* Server options. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000369 case 'd':
370 targetshouldbedirectory = 1;
371 break;
Damien Miller95def091999-11-25 00:26:21 +1100372 case 'f': /* "from" */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000373 iamremote = 1;
374 fflag = 1;
375 break;
Damien Miller95def091999-11-25 00:26:21 +1100376 case 't': /* "to" */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000377 iamremote = 1;
378 tflag = 1;
Damien Miller402b3312001-04-14 00:28:42 +1000379#ifdef HAVE_CYGWIN
380 setmode(0, O_BINARY);
381#endif
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000382 break;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000383 default:
384 usage();
385 }
386 argc -= optind;
387 argv += optind;
388
389 if ((pwd = getpwuid(userid = getuid())) == NULL)
Darren Tucker03a29ba2003-07-19 20:07:45 +1000390 fatal("unknown user %u", (u_int) userid);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000391
Darren Tucker6ec2fbe2007-02-19 22:14:11 +1100392 if (!isatty(STDOUT_FILENO))
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000393 showprogress = 0;
394
395 remin = STDIN_FILENO;
396 remout = STDOUT_FILENO;
397
Kevin Stevesef4eea92001-02-05 12:42:17 +0000398 if (fflag) {
Damien Miller95def091999-11-25 00:26:21 +1100399 /* Follow "protocol", send data. */
400 (void) response();
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000401 source(argc, argv);
402 exit(errs != 0);
403 }
Damien Miller95def091999-11-25 00:26:21 +1100404 if (tflag) {
405 /* Receive data. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000406 sink(argc, argv);
407 exit(errs != 0);
408 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000409 if (argc < 2)
410 usage();
411 if (argc > 2)
412 targetshouldbedirectory = 1;
413
414 remin = remout = -1;
Ben Lindstrom007eb912002-11-09 15:54:08 +0000415 do_cmd_pid = -1;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000416 /* Command to be executed on remote system using "ssh". */
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000417 (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
418 verbose_mode ? " -v" : "",
Damien Millerad833b32000-08-23 10:46:23 +1000419 iamrecursive ? " -r" : "", pflag ? " -p" : "",
420 targetshouldbedirectory ? " -d" : "");
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000421
Damien Miller95def091999-11-25 00:26:21 +1100422 (void) signal(SIGPIPE, lostconn);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000423
424 if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
425 toremote(targ, argc, argv);
426 else {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000427 if (targetshouldbedirectory)
428 verifydir(argv[argc - 1]);
Damien Miller923f1ce2006-01-31 22:11:37 +1100429 tolocal(argc, argv); /* Dest is local host. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000430 }
Ben Lindstrom007eb912002-11-09 15:54:08 +0000431 /*
432 * Finally check the exit status of the ssh process, if one was forked
433 * and no error has occured yet
434 */
435 if (do_cmd_pid != -1 && errs == 0) {
436 if (remin != -1)
437 (void) close(remin);
438 if (remout != -1)
439 (void) close(remout);
440 if (waitpid(do_cmd_pid, &status, 0) == -1)
441 errs = 1;
442 else {
443 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
444 errs = 1;
445 }
446 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000447 exit(errs != 0);
448}
449
Damien Millerc77cadb2007-10-26 15:39:15 +1000450/*
451 * atomicio-like wrapper that also applies bandwidth limits and updates
452 * the progressmeter counter.
453 */
454size_t
455scpio(ssize_t (*f)(int, void *, size_t), int fd, void *_p, size_t l, off_t *c)
456{
457 u_char *p = (u_char *)_p;
458 size_t offset;
459 ssize_t r;
460 struct pollfd pfd;
461
462 pfd.fd = fd;
463 pfd.events = f == read ? POLLIN : POLLOUT;
464 for (offset = 0; offset < l;) {
465 r = f(fd, p + offset, l - offset);
466 if (r == 0) {
467 errno = EPIPE;
468 return offset;
469 }
470 if (r < 0) {
471 if (errno == EINTR)
472 continue;
473 if (errno == EAGAIN) {
474 (void)poll(&pfd, 1, -1); /* Ignore errors */
475 continue;
476 }
477 return offset;
478 }
479 offset += (size_t)r;
480 *c += (off_t)r;
481 if (limit_rate)
482 bwlimit(r);
483 }
484 return offset;
485}
486
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000487void
Damien Miller65d1f572003-06-04 22:51:08 +1000488toremote(char *targ, int argc, char **argv)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000489{
Damien Miller3dae15c2005-04-03 10:16:11 +1000490 char *bp, *host, *src, *suser, *thost, *tuser, *arg;
Damien Miller3eec6b72006-01-31 21:49:27 +1100491 arglist alist;
Damien Miller07aa1322006-04-23 12:04:27 +1000492 int i;
Damien Miller3eec6b72006-01-31 21:49:27 +1100493
494 memset(&alist, '\0', sizeof(alist));
495 alist.list = NULL;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000496
497 *targ++ = 0;
498 if (*targ == 0)
499 targ = ".";
500
Damien Miller4942de52005-04-03 10:16:39 +1000501 arg = xstrdup(argv[argc - 1]);
Damien Miller3dae15c2005-04-03 10:16:11 +1000502 if ((thost = strrchr(arg, '@'))) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000503 /* user@host */
504 *thost++ = 0;
Damien Miller3dae15c2005-04-03 10:16:11 +1000505 tuser = arg;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000506 if (*tuser == '\0')
507 tuser = NULL;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000508 } else {
Damien Miller3dae15c2005-04-03 10:16:11 +1000509 thost = arg;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000510 tuser = NULL;
511 }
512
Damien Miller3eec6b72006-01-31 21:49:27 +1100513 if (tuser != NULL && !okname(tuser)) {
514 xfree(arg);
515 return;
516 }
517
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000518 for (i = 0; i < argc - 1; i++) {
519 src = colon(argv[i]);
Damien Miller95def091999-11-25 00:26:21 +1100520 if (src) { /* remote to remote */
Damien Miller3eec6b72006-01-31 21:49:27 +1100521 freeargs(&alist);
522 addargs(&alist, "%s", ssh_program);
523 if (verbose_mode)
524 addargs(&alist, "-v");
525 addargs(&alist, "-x");
526 addargs(&alist, "-oClearAllForwardings yes");
527 addargs(&alist, "-n");
528
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000529 *src++ = 0;
530 if (*src == 0)
531 src = ".";
Ben Lindstromc276c122002-12-23 02:14:51 +0000532 host = strrchr(argv[i], '@');
Damien Miller3eec6b72006-01-31 21:49:27 +1100533
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000534 if (host) {
535 *host++ = 0;
Damien Miller34132e52000-01-14 15:45:46 +1100536 host = cleanhostname(host);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000537 suser = argv[i];
538 if (*suser == '\0')
539 suser = pwd->pw_name;
Damien Miller3eec6b72006-01-31 21:49:27 +1100540 else if (!okname(suser))
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000541 continue;
Damien Miller3eec6b72006-01-31 21:49:27 +1100542 addargs(&alist, "-l");
543 addargs(&alist, "%s", suser);
Damien Miller34132e52000-01-14 15:45:46 +1100544 } else {
545 host = cleanhostname(argv[i]);
Damien Miller34132e52000-01-14 15:45:46 +1100546 }
Damien Miller3eec6b72006-01-31 21:49:27 +1100547 addargs(&alist, "%s", host);
548 addargs(&alist, "%s", cmd);
549 addargs(&alist, "%s", src);
550 addargs(&alist, "%s%s%s:%s",
551 tuser ? tuser : "", tuser ? "@" : "",
552 thost, targ);
553 if (do_local_cmd(&alist) != 0)
Darren Tucker8654d162003-09-22 21:14:55 +1000554 errs = 1;
Damien Miller95def091999-11-25 00:26:21 +1100555 } else { /* local to remote */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000556 if (remin == -1) {
Damien Miller7a656f72006-04-23 12:04:46 +1000557 xasprintf(&bp, "%s -t %s", cmd, targ);
Damien Miller34132e52000-01-14 15:45:46 +1100558 host = cleanhostname(thost);
Damien Millerad833b32000-08-23 10:46:23 +1000559 if (do_cmd(host, tuser, bp, &remin,
Damien Miller07aa1322006-04-23 12:04:27 +1000560 &remout) < 0)
Damien Miller95def091999-11-25 00:26:21 +1100561 exit(1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000562 if (response() < 0)
563 exit(1);
Damien Miller95def091999-11-25 00:26:21 +1100564 (void) xfree(bp);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000565 }
Damien Miller95def091999-11-25 00:26:21 +1100566 source(1, argv + i);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000567 }
568 }
Damien Miller40b59852006-06-13 13:00:25 +1000569 xfree(arg);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000570}
571
572void
Damien Miller65d1f572003-06-04 22:51:08 +1000573tolocal(int argc, char **argv)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000574{
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000575 char *bp, *host, *src, *suser;
Damien Miller3eec6b72006-01-31 21:49:27 +1100576 arglist alist;
Damien Miller07aa1322006-04-23 12:04:27 +1000577 int i;
Damien Miller3eec6b72006-01-31 21:49:27 +1100578
579 memset(&alist, '\0', sizeof(alist));
580 alist.list = NULL;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000581
582 for (i = 0; i < argc - 1; i++) {
Damien Miller95def091999-11-25 00:26:21 +1100583 if (!(src = colon(argv[i]))) { /* Local to local. */
Damien Miller3eec6b72006-01-31 21:49:27 +1100584 freeargs(&alist);
585 addargs(&alist, "%s", _PATH_CP);
586 if (iamrecursive)
587 addargs(&alist, "-r");
588 if (pflag)
589 addargs(&alist, "-p");
590 addargs(&alist, "%s", argv[i]);
591 addargs(&alist, "%s", argv[argc-1]);
592 if (do_local_cmd(&alist))
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000593 ++errs;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000594 continue;
595 }
596 *src++ = 0;
597 if (*src == 0)
598 src = ".";
Ben Lindstromc276c122002-12-23 02:14:51 +0000599 if ((host = strrchr(argv[i], '@')) == NULL) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000600 host = argv[i];
601 suser = NULL;
602 } else {
603 *host++ = 0;
604 suser = argv[i];
605 if (*suser == '\0')
606 suser = pwd->pw_name;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000607 }
Damien Miller34132e52000-01-14 15:45:46 +1100608 host = cleanhostname(host);
Damien Miller7a656f72006-04-23 12:04:46 +1000609 xasprintf(&bp, "%s -f %s", cmd, src);
Damien Miller07aa1322006-04-23 12:04:27 +1000610 if (do_cmd(host, suser, bp, &remin, &remout) < 0) {
Damien Miller95def091999-11-25 00:26:21 +1100611 (void) xfree(bp);
612 ++errs;
613 continue;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000614 }
Damien Miller95def091999-11-25 00:26:21 +1100615 xfree(bp);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000616 sink(1, argv + argc - 1);
Damien Miller95def091999-11-25 00:26:21 +1100617 (void) close(remin);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000618 remin = remout = -1;
619 }
620}
621
622void
Damien Miller65d1f572003-06-04 22:51:08 +1000623source(int argc, char **argv)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000624{
625 struct stat stb;
626 static BUF buffer;
627 BUF *bp;
Damien Millerb253cc42005-05-26 12:23:44 +1000628 off_t i, amt, statbytes;
Darren Tucker40858532005-08-02 17:07:07 +1000629 int fd = -1, haderr, indx;
Darren Tuckerbed63112007-06-13 00:02:07 +1000630 char *last, *name, buf[2048], encname[MAXPATHLEN];
Ben Lindstromd47cf4d2001-04-07 01:14:38 +0000631 int len;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000632
633 for (indx = 0; indx < argc; ++indx) {
Damien Miller95def091999-11-25 00:26:21 +1100634 name = argv[indx];
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000635 statbytes = 0;
Ben Lindstromd47cf4d2001-04-07 01:14:38 +0000636 len = strlen(name);
637 while (len > 1 && name[len-1] == '/')
638 name[--len] = '\0';
Darren Tucker43ce9022007-06-12 23:41:06 +1000639 if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) < 0)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000640 goto syserr;
Darren Tuckerbed63112007-06-13 00:02:07 +1000641 if (strchr(name, '\n') != NULL) {
642 strnvis(encname, name, sizeof(encname), VIS_NL);
643 name = encname;
644 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000645 if (fstat(fd, &stb) < 0) {
646syserr: run_err("%s: %s", name, strerror(errno));
647 goto next;
648 }
Darren Tucker43ce9022007-06-12 23:41:06 +1000649 unset_nonblock(fd);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000650 switch (stb.st_mode & S_IFMT) {
651 case S_IFREG:
652 break;
653 case S_IFDIR:
654 if (iamrecursive) {
655 rsource(name, &stb);
656 goto next;
657 }
658 /* FALLTHROUGH */
659 default:
660 run_err("%s: not a regular file", name);
661 goto next;
662 }
663 if ((last = strrchr(name, '/')) == NULL)
664 last = name;
665 else
666 ++last;
667 curfile = last;
668 if (pflag) {
669 /*
670 * Make it compatible with possible future
671 * versions expecting microseconds.
672 */
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000673 (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n",
Darren Tucker9b439c12008-01-01 20:33:57 +1100674 (u_long) (stb.st_mtime < 0 ? 0 : stb.st_mtime),
675 (u_long) (stb.st_atime < 0 ? 0 : stb.st_atime));
676 if (verbose_mode) {
677 fprintf(stderr, "File mtime %ld atime %ld\n",
678 (long)stb.st_mtime, (long)stb.st_atime);
679 fprintf(stderr, "Sending file timestamps: %s",
680 buf);
681 }
Darren Tucker9f63f222003-07-03 13:46:56 +1000682 (void) atomicio(vwrite, remout, buf, strlen(buf));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000683 if (response() < 0)
684 goto next;
685 }
686#define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
Ben Lindstroma4c57662001-03-17 00:10:20 +0000687 snprintf(buf, sizeof buf, "C%04o %lld %s\n",
Ben Lindstrom46c16222000-12-22 01:43:59 +0000688 (u_int) (stb.st_mode & FILEMODEMASK),
Darren Tuckere0be3042005-11-25 14:44:55 +1100689 (long long)stb.st_size, last);
Damien Miller95def091999-11-25 00:26:21 +1100690 if (verbose_mode) {
691 fprintf(stderr, "Sending file modes: %s", buf);
Damien Miller95def091999-11-25 00:26:21 +1100692 }
Darren Tucker9f63f222003-07-03 13:46:56 +1000693 (void) atomicio(vwrite, remout, buf, strlen(buf));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000694 if (response() < 0)
695 goto next;
Damien Millerc77cadb2007-10-26 15:39:15 +1000696 if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
Darren Tucker33f86bc2005-11-22 19:38:06 +1100697next: if (fd != -1) {
698 (void) close(fd);
699 fd = -1;
700 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000701 continue;
702 }
Damien Miller62d57f62003-01-10 21:43:24 +1100703 if (showprogress)
704 start_progress_meter(curfile, stb.st_size, &statbytes);
Damien Millerc77cadb2007-10-26 15:39:15 +1000705 set_nonblock(remout);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000706 for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
707 amt = bp->cnt;
708 if (i + amt > stb.st_size)
709 amt = stb.st_size - i;
710 if (!haderr) {
Damien Millerc77cadb2007-10-26 15:39:15 +1000711 if (atomicio(read, fd, bp->buf, amt) != amt)
Damien Millerb253cc42005-05-26 12:23:44 +1000712 haderr = errno;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000713 }
Damien Millerc77cadb2007-10-26 15:39:15 +1000714 /* Keep writing after error to retain sync */
715 if (haderr) {
716 (void)atomicio(vwrite, remout, bp->buf, amt);
717 continue;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000718 }
Damien Millerc77cadb2007-10-26 15:39:15 +1000719 if (scpio(vwrite, remout, bp->buf, amt,
720 &statbytes) != amt)
721 haderr = errno;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000722 }
Damien Millerc77cadb2007-10-26 15:39:15 +1000723 unset_nonblock(remout);
Damien Miller95def091999-11-25 00:26:21 +1100724 if (showprogress)
Damien Miller62d57f62003-01-10 21:43:24 +1100725 stop_progress_meter();
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000726
Darren Tucker33f86bc2005-11-22 19:38:06 +1100727 if (fd != -1) {
728 if (close(fd) < 0 && !haderr)
729 haderr = errno;
730 fd = -1;
731 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000732 if (!haderr)
Darren Tucker9f63f222003-07-03 13:46:56 +1000733 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000734 else
735 run_err("%s: %s", name, strerror(haderr));
Damien Miller95def091999-11-25 00:26:21 +1100736 (void) response();
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000737 }
738}
739
740void
Damien Miller65d1f572003-06-04 22:51:08 +1000741rsource(char *name, struct stat *statp)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000742{
743 DIR *dirp;
744 struct dirent *dp;
745 char *last, *vect[1], path[1100];
746
747 if (!(dirp = opendir(name))) {
748 run_err("%s: %s", name, strerror(errno));
749 return;
750 }
751 last = strrchr(name, '/');
752 if (last == 0)
753 last = name;
754 else
755 last++;
756 if (pflag) {
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000757 (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n",
Ben Lindstrom46c16222000-12-22 01:43:59 +0000758 (u_long) statp->st_mtime,
759 (u_long) statp->st_atime);
Darren Tucker9f63f222003-07-03 13:46:56 +1000760 (void) atomicio(vwrite, remout, path, strlen(path));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000761 if (response() < 0) {
762 closedir(dirp);
763 return;
764 }
765 }
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000766 (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
Ben Lindstrom46c16222000-12-22 01:43:59 +0000767 (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
Damien Miller95def091999-11-25 00:26:21 +1100768 if (verbose_mode)
769 fprintf(stderr, "Entering directory: %s", path);
Darren Tucker9f63f222003-07-03 13:46:56 +1000770 (void) atomicio(vwrite, remout, path, strlen(path));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000771 if (response() < 0) {
772 closedir(dirp);
773 return;
774 }
Ben Lindstrombd472262001-03-29 00:39:55 +0000775 while ((dp = readdir(dirp)) != NULL) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000776 if (dp->d_ino == 0)
777 continue;
778 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
779 continue;
780 if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
781 run_err("%s/%s: name too long", name, dp->d_name);
782 continue;
783 }
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000784 (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000785 vect[0] = path;
786 source(1, vect);
787 }
Damien Miller95def091999-11-25 00:26:21 +1100788 (void) closedir(dirp);
Darren Tucker9f63f222003-07-03 13:46:56 +1000789 (void) atomicio(vwrite, remout, "E\n", 2);
Damien Miller95def091999-11-25 00:26:21 +1100790 (void) response();
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000791}
792
793void
Damien Millerff74d742003-01-24 11:36:58 +1100794bwlimit(int amount)
795{
796 static struct timeval bwstart, bwend;
797 static int lamt, thresh = 16384;
Darren Tucker3f9fdc72004-06-22 12:56:01 +1000798 u_int64_t waitlen;
Damien Millerff74d742003-01-24 11:36:58 +1100799 struct timespec ts, rm;
800
801 if (!timerisset(&bwstart)) {
802 gettimeofday(&bwstart, NULL);
803 return;
804 }
805
806 lamt += amount;
807 if (lamt < thresh)
808 return;
809
810 gettimeofday(&bwend, NULL);
811 timersub(&bwend, &bwstart, &bwend);
812 if (!timerisset(&bwend))
813 return;
814
815 lamt *= 8;
Darren Tucker3f9fdc72004-06-22 12:56:01 +1000816 waitlen = (double)1000000L * lamt / limit_rate;
Damien Millerff74d742003-01-24 11:36:58 +1100817
Darren Tucker3f9fdc72004-06-22 12:56:01 +1000818 bwstart.tv_sec = waitlen / 1000000L;
819 bwstart.tv_usec = waitlen % 1000000L;
Damien Millerff74d742003-01-24 11:36:58 +1100820
821 if (timercmp(&bwstart, &bwend, >)) {
822 timersub(&bwstart, &bwend, &bwend);
823
824 /* Adjust the wait time */
825 if (bwend.tv_sec) {
826 thresh /= 2;
827 if (thresh < 2048)
828 thresh = 2048;
Damien Millerc77cadb2007-10-26 15:39:15 +1000829 } else if (bwend.tv_usec < 10000) {
Damien Millerff74d742003-01-24 11:36:58 +1100830 thresh *= 2;
Damien Millerc77cadb2007-10-26 15:39:15 +1000831 if (thresh > COPY_BUFLEN * 4)
832 thresh = COPY_BUFLEN * 4;
Damien Millerff74d742003-01-24 11:36:58 +1100833 }
834
835 TIMEVAL_TO_TIMESPEC(&bwend, &ts);
836 while (nanosleep(&ts, &rm) == -1) {
837 if (errno != EINTR)
838 break;
839 ts = rm;
840 }
841 }
842
843 lamt = 0;
844 gettimeofday(&bwstart, NULL);
845}
846
847void
Damien Miller65d1f572003-06-04 22:51:08 +1000848sink(int argc, char **argv)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000849{
850 static BUF buffer;
851 struct stat stb;
Damien Miller95def091999-11-25 00:26:21 +1100852 enum {
853 YES, NO, DISPLAYED
854 } wrerr;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000855 BUF *bp;
Damien Millerb253cc42005-05-26 12:23:44 +1000856 off_t i;
Damien Millereccb9de2005-06-17 12:59:34 +1000857 size_t j, count;
Damien Miller07aa1322006-04-23 12:04:27 +1000858 int amt, exists, first, ofd;
859 mode_t mode, omode, mask;
Damien Miller62d57f62003-01-10 21:43:24 +1100860 off_t size, statbytes;
Damien Millercaf6dd62000-08-29 11:33:50 +1100861 int setimes, targisdir, wrerrno = 0;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000862 char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
Damien Miller62cee002000-09-23 17:15:56 +1100863 struct timeval tv[2];
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000864
Ben Lindstromf719a202001-04-14 23:14:22 +0000865#define atime tv[0]
866#define mtime tv[1]
Darren Tuckerf30e1ac2004-11-05 20:10:02 +1100867#define SCREWUP(str) { why = str; goto screwup; }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000868
869 setimes = targisdir = 0;
870 mask = umask(0);
871 if (!pflag)
Damien Miller95def091999-11-25 00:26:21 +1100872 (void) umask(mask);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000873 if (argc != 1) {
874 run_err("ambiguous target");
875 exit(1);
876 }
877 targ = *argv;
878 if (targetshouldbedirectory)
879 verifydir(targ);
Damien Miller95def091999-11-25 00:26:21 +1100880
Darren Tucker9f63f222003-07-03 13:46:56 +1000881 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000882 if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
883 targisdir = 1;
884 for (first = 1;; first = 0) {
885 cp = buf;
Damien Millerb253cc42005-05-26 12:23:44 +1000886 if (atomicio(read, remin, cp, 1) != 1)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000887 return;
888 if (*cp++ == '\n')
889 SCREWUP("unexpected <newline>");
890 do {
Damien Millere247cc42000-05-07 12:03:14 +1000891 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000892 SCREWUP("lost connection");
893 *cp++ = ch;
894 } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
895 *cp = 0;
Darren Tuckerbddc2b02004-04-19 23:50:16 +1000896 if (verbose_mode)
897 fprintf(stderr, "Sink: %s", buf);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000898
899 if (buf[0] == '\01' || buf[0] == '\02') {
900 if (iamremote == 0)
Darren Tucker9f63f222003-07-03 13:46:56 +1000901 (void) atomicio(vwrite, STDERR_FILENO,
Kevin Steves7d00ba42000-12-15 23:03:10 +0000902 buf + 1, strlen(buf + 1));
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000903 if (buf[0] == '\02')
904 exit(1);
905 ++errs;
906 continue;
907 }
908 if (buf[0] == 'E') {
Darren Tucker9f63f222003-07-03 13:46:56 +1000909 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000910 return;
911 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000912 if (ch == '\n')
913 *--cp = 0;
914
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000915 cp = buf;
916 if (*cp == 'T') {
917 setimes++;
918 cp++;
Ben Lindstromf719a202001-04-14 23:14:22 +0000919 mtime.tv_sec = strtol(cp, &cp, 10);
920 if (!cp || *cp++ != ' ')
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000921 SCREWUP("mtime.sec not delimited");
Ben Lindstromf719a202001-04-14 23:14:22 +0000922 mtime.tv_usec = strtol(cp, &cp, 10);
923 if (!cp || *cp++ != ' ')
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000924 SCREWUP("mtime.usec not delimited");
Ben Lindstromf719a202001-04-14 23:14:22 +0000925 atime.tv_sec = strtol(cp, &cp, 10);
926 if (!cp || *cp++ != ' ')
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000927 SCREWUP("atime.sec not delimited");
Ben Lindstromf719a202001-04-14 23:14:22 +0000928 atime.tv_usec = strtol(cp, &cp, 10);
929 if (!cp || *cp++ != '\0')
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000930 SCREWUP("atime.usec not delimited");
Darren Tucker9f63f222003-07-03 13:46:56 +1000931 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000932 continue;
933 }
934 if (*cp != 'C' && *cp != 'D') {
935 /*
936 * Check for the case "rcp remote:foo\* local:bar".
937 * In this case, the line "No match." can be returned
938 * by the shell before the rcp command on the remote is
939 * executed so the ^Aerror_message convention isn't
940 * followed.
941 */
942 if (first) {
943 run_err("%s", cp);
944 exit(1);
945 }
946 SCREWUP("expected control record");
947 }
948 mode = 0;
949 for (++cp; cp < buf + 5; cp++) {
950 if (*cp < '0' || *cp > '7')
951 SCREWUP("bad mode");
952 mode = (mode << 3) | (*cp - '0');
953 }
954 if (*cp++ != ' ')
955 SCREWUP("mode not delimited");
956
Ben Lindstrombd472262001-03-29 00:39:55 +0000957 for (size = 0; isdigit(*cp);)
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000958 size = size * 10 + (*cp++ - '0');
959 if (*cp++ != ' ')
960 SCREWUP("size not delimited");
Darren Tuckerbddc2b02004-04-19 23:50:16 +1000961 if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) {
962 run_err("error: unexpected filename: %s", cp);
963 exit(1);
964 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000965 if (targisdir) {
966 static char *namebuf;
Damien Millereccb9de2005-06-17 12:59:34 +1000967 static size_t cursize;
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000968 size_t need;
969
970 need = strlen(targ) + strlen(cp) + 250;
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000971 if (need > cursize) {
972 if (namebuf)
973 xfree(namebuf);
Damien Miller95def091999-11-25 00:26:21 +1100974 namebuf = xmalloc(need);
Ben Lindstromf6b7b092001-02-09 01:23:39 +0000975 cursize = need;
976 }
977 (void) snprintf(namebuf, need, "%s%s%s", targ,
Ben Lindstromde3895d2002-04-06 18:29:59 +0000978 strcmp(targ, "/") ? "/" : "", cp);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000979 np = namebuf;
980 } else
981 np = targ;
982 curfile = cp;
983 exists = stat(np, &stb) == 0;
984 if (buf[0] == 'D') {
985 int mod_flag = pflag;
Darren Tuckerbddc2b02004-04-19 23:50:16 +1000986 if (!iamrecursive)
987 SCREWUP("received directory without -r");
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000988 if (exists) {
989 if (!S_ISDIR(stb.st_mode)) {
990 errno = ENOTDIR;
991 goto bad;
992 }
993 if (pflag)
Damien Miller95def091999-11-25 00:26:21 +1100994 (void) chmod(np, mode);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000995 } else {
Damien Miller95def091999-11-25 00:26:21 +1100996 /* Handle copying from a read-only
997 directory */
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000998 mod_flag = 1;
999 if (mkdir(np, mode | S_IRWXU) < 0)
1000 goto bad;
1001 }
Ben Lindstrom550bc542001-02-10 21:50:00 +00001002 vect[0] = xstrdup(np);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001003 sink(1, vect);
1004 if (setimes) {
1005 setimes = 0;
Damien Miller225736c2001-02-19 21:51:08 +11001006 if (utimes(vect[0], tv) < 0)
Damien Miller95def091999-11-25 00:26:21 +11001007 run_err("%s: set times: %s",
Damien Miller225736c2001-02-19 21:51:08 +11001008 vect[0], strerror(errno));
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001009 }
1010 if (mod_flag)
Damien Miller225736c2001-02-19 21:51:08 +11001011 (void) chmod(vect[0], mode);
1012 if (vect[0])
1013 xfree(vect[0]);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001014 continue;
1015 }
1016 omode = mode;
1017 mode |= S_IWRITE;
Ben Lindstrom7bad55b2001-06-05 19:31:41 +00001018 if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001019bad: run_err("%s: %s", np, strerror(errno));
1020 continue;
1021 }
Darren Tucker9f63f222003-07-03 13:46:56 +10001022 (void) atomicio(vwrite, remout, "", 1);
Damien Millerc77cadb2007-10-26 15:39:15 +10001023 if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
Damien Miller95def091999-11-25 00:26:21 +11001024 (void) close(ofd);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001025 continue;
1026 }
1027 cp = bp->buf;
1028 wrerr = NO;
1029
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001030 statbytes = 0;
Damien Miller62d57f62003-01-10 21:43:24 +11001031 if (showprogress)
1032 start_progress_meter(curfile, size, &statbytes);
Damien Millerc77cadb2007-10-26 15:39:15 +10001033 set_nonblock(remin);
1034 for (count = i = 0; i < size; i += bp->cnt) {
1035 amt = bp->cnt;
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001036 if (i + amt > size)
1037 amt = size - i;
1038 count += amt;
1039 do {
Damien Millerc77cadb2007-10-26 15:39:15 +10001040 j = scpio(read, remin, cp, amt, &statbytes);
Damien Millerb253cc42005-05-26 12:23:44 +10001041 if (j == 0) {
Damien Millerc77cadb2007-10-26 15:39:15 +10001042 run_err("%s", j != EPIPE ?
1043 strerror(errno) :
Ben Lindstrombd472262001-03-29 00:39:55 +00001044 "dropped connection");
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001045 exit(1);
1046 }
1047 amt -= j;
1048 cp += j;
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001049 } while (amt > 0);
Damien Miller787b2ec2003-11-21 23:56:47 +11001050
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001051 if (count == bp->cnt) {
1052 /* Keep reading so we stay sync'd up. */
1053 if (wrerr == NO) {
Damien Millerb253cc42005-05-26 12:23:44 +10001054 if (atomicio(vwrite, ofd, bp->buf,
1055 count) != count) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001056 wrerr = YES;
Damien Millerb253cc42005-05-26 12:23:44 +10001057 wrerrno = errno;
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001058 }
1059 }
1060 count = 0;
1061 cp = bp->buf;
1062 }
1063 }
Damien Millerc77cadb2007-10-26 15:39:15 +10001064 unset_nonblock(remin);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001065 if (showprogress)
Damien Miller62d57f62003-01-10 21:43:24 +11001066 stop_progress_meter();
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001067 if (count != 0 && wrerr == NO &&
Damien Millerb253cc42005-05-26 12:23:44 +10001068 atomicio(vwrite, ofd, bp->buf, count) != count) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001069 wrerr = YES;
Damien Millerb253cc42005-05-26 12:23:44 +10001070 wrerrno = errno;
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001071 }
Darren Tucker067263e2007-06-25 18:32:33 +10001072 if (wrerr == NO && (!exists || S_ISREG(stb.st_mode)) &&
1073 ftruncate(ofd, size) != 0) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001074 run_err("%s: truncate: %s", np, strerror(errno));
1075 wrerr = DISPLAYED;
1076 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001077 if (pflag) {
1078 if (exists || omode != mode)
Damien Miller78315eb2000-09-29 23:01:36 +11001079#ifdef HAVE_FCHMOD
Darren Tuckere1f17052004-07-08 23:11:44 +10001080 if (fchmod(ofd, omode)) {
Damien Miller78315eb2000-09-29 23:01:36 +11001081#else /* HAVE_FCHMOD */
Darren Tuckere1f17052004-07-08 23:11:44 +10001082 if (chmod(np, omode)) {
Damien Miller78315eb2000-09-29 23:01:36 +11001083#endif /* HAVE_FCHMOD */
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001084 run_err("%s: set mode: %s",
Ben Lindstrombd472262001-03-29 00:39:55 +00001085 np, strerror(errno));
Darren Tuckere1f17052004-07-08 23:11:44 +10001086 wrerr = DISPLAYED;
1087 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001088 } else {
1089 if (!exists && omode != mode)
Damien Miller78315eb2000-09-29 23:01:36 +11001090#ifdef HAVE_FCHMOD
Darren Tuckere1f17052004-07-08 23:11:44 +10001091 if (fchmod(ofd, omode & ~mask)) {
Damien Miller78315eb2000-09-29 23:01:36 +11001092#else /* HAVE_FCHMOD */
Darren Tuckere1f17052004-07-08 23:11:44 +10001093 if (chmod(np, omode & ~mask)) {
Damien Miller78315eb2000-09-29 23:01:36 +11001094#endif /* HAVE_FCHMOD */
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001095 run_err("%s: set mode: %s",
Ben Lindstrombd472262001-03-29 00:39:55 +00001096 np, strerror(errno));
Darren Tuckere1f17052004-07-08 23:11:44 +10001097 wrerr = DISPLAYED;
1098 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001099 }
Damien Millerbe484b52000-07-15 14:14:16 +10001100 if (close(ofd) == -1) {
1101 wrerr = YES;
1102 wrerrno = errno;
1103 }
Damien Miller95def091999-11-25 00:26:21 +11001104 (void) response();
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001105 if (setimes && wrerr == NO) {
1106 setimes = 0;
Damien Miller62cee002000-09-23 17:15:56 +11001107 if (utimes(np, tv) < 0) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001108 run_err("%s: set times: %s",
Ben Lindstrombd472262001-03-29 00:39:55 +00001109 np, strerror(errno));
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001110 wrerr = DISPLAYED;
1111 }
1112 }
Damien Miller95def091999-11-25 00:26:21 +11001113 switch (wrerr) {
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001114 case YES:
1115 run_err("%s: %s", np, strerror(wrerrno));
1116 break;
1117 case NO:
Darren Tucker9f63f222003-07-03 13:46:56 +10001118 (void) atomicio(vwrite, remout, "", 1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001119 break;
1120 case DISPLAYED:
1121 break;
1122 }
1123 }
1124screwup:
1125 run_err("protocol error: %s", why);
1126 exit(1);
1127}
1128
1129int
Ben Lindstrom3c36bb22001-12-06 17:55:26 +00001130response(void)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001131{
1132 char ch, *cp, resp, rbuf[2048];
1133
Damien Millere247cc42000-05-07 12:03:14 +10001134 if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001135 lostconn(0);
1136
1137 cp = rbuf;
Damien Miller95def091999-11-25 00:26:21 +11001138 switch (resp) {
1139 case 0: /* ok */
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001140 return (0);
1141 default:
1142 *cp++ = resp;
1143 /* FALLTHROUGH */
Damien Miller95def091999-11-25 00:26:21 +11001144 case 1: /* error, followed by error msg */
1145 case 2: /* fatal error, "" */
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001146 do {
Damien Millere247cc42000-05-07 12:03:14 +10001147 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001148 lostconn(0);
1149 *cp++ = ch;
1150 } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
1151
1152 if (!iamremote)
Darren Tucker9f63f222003-07-03 13:46:56 +10001153 (void) atomicio(vwrite, STDERR_FILENO, rbuf, cp - rbuf);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001154 ++errs;
1155 if (resp == 1)
1156 return (-1);
1157 exit(1);
1158 }
1159 /* NOTREACHED */
1160}
1161
1162void
Ben Lindstrom3c36bb22001-12-06 17:55:26 +00001163usage(void)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001164{
Ben Lindstrom1e243242001-09-18 05:38:44 +00001165 (void) fprintf(stderr,
Darren Tucker1f203942003-10-15 15:50:42 +10001166 "usage: scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n"
1167 " [-l limit] [-o ssh_option] [-P port] [-S program]\n"
Damien Miller647d97b2007-08-08 14:29:58 +10001168 " [[user@]host1:]file1 ... [[user@]host2:]file2\n");
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001169 exit(1);
1170}
1171
1172void
Damien Miller95def091999-11-25 00:26:21 +11001173run_err(const char *fmt,...)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001174{
1175 static FILE *fp;
1176 va_list ap;
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001177
1178 ++errs;
Damien Miller745570c2006-03-26 13:49:43 +11001179 if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
1180 (void) fprintf(fp, "%c", 0x01);
1181 (void) fprintf(fp, "scp: ");
1182 va_start(ap, fmt);
1183 (void) vfprintf(fp, fmt, ap);
1184 va_end(ap);
1185 (void) fprintf(fp, "\n");
1186 (void) fflush(fp);
1187 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001188
Damien Miller95def091999-11-25 00:26:21 +11001189 if (!iamremote) {
Damien Miller03783f01999-12-31 09:16:40 +11001190 va_start(ap, fmt);
Damien Miller95def091999-11-25 00:26:21 +11001191 vfprintf(stderr, fmt, ap);
Damien Miller03783f01999-12-31 09:16:40 +11001192 va_end(ap);
Damien Miller95def091999-11-25 00:26:21 +11001193 fprintf(stderr, "\n");
1194 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001195}
1196
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001197void
Damien Miller65d1f572003-06-04 22:51:08 +10001198verifydir(char *cp)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001199{
1200 struct stat stb;
1201
1202 if (!stat(cp, &stb)) {
1203 if (S_ISDIR(stb.st_mode))
1204 return;
1205 errno = ENOTDIR;
1206 }
1207 run_err("%s: %s", cp, strerror(errno));
Darren Tuckerfc4f2dd2005-06-01 23:01:12 +10001208 killchild(0);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001209}
1210
1211int
Damien Miller65d1f572003-06-04 22:51:08 +10001212okname(char *cp0)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001213{
1214 int c;
1215 char *cp;
1216
1217 cp = cp0;
1218 do {
Ben Lindstrom7d5ed3a2001-06-25 04:28:30 +00001219 c = (int)*cp;
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001220 if (c & 0200)
1221 goto bad;
Damien Millereeeeb352003-02-24 11:52:58 +11001222 if (!isalpha(c) && !isdigit(c)) {
1223 switch (c) {
1224 case '\'':
1225 case '"':
1226 case '`':
1227 case ' ':
1228 case '#':
1229 goto bad;
1230 default:
1231 break;
1232 }
1233 }
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001234 } while (*++cp);
1235 return (1);
1236
Damien Miller98c7ad62000-03-09 21:27:49 +11001237bad: fprintf(stderr, "%s: invalid user name\n", cp0);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001238 return (0);
1239}
1240
1241BUF *
Damien Miller65d1f572003-06-04 22:51:08 +10001242allocbuf(BUF *bp, int fd, int blksize)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001243{
1244 size_t size;
Tim Rice13aae5e2001-10-21 17:53:58 -07001245#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001246 struct stat stb;
1247
1248 if (fstat(fd, &stb) < 0) {
1249 run_err("fstat: %s", strerror(errno));
1250 return (0);
1251 }
Ben Lindstrom418e0782002-12-23 02:22:09 +00001252 size = roundup(stb.st_blksize, blksize);
1253 if (size == 0)
Damien Miller95def091999-11-25 00:26:21 +11001254 size = blksize;
Tim Rice13aae5e2001-10-21 17:53:58 -07001255#else /* HAVE_STRUCT_STAT_ST_BLKSIZE */
Kevin Stevesef4eea92001-02-05 12:42:17 +00001256 size = blksize;
Tim Rice13aae5e2001-10-21 17:53:58 -07001257#endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001258 if (bp->cnt >= size)
1259 return (bp);
Damien Miller95def091999-11-25 00:26:21 +11001260 if (bp->buf == NULL)
1261 bp->buf = xmalloc(size);
1262 else
Damien Miller36812092006-03-26 14:22:47 +11001263 bp->buf = xrealloc(bp->buf, 1, size);
Ben Lindstrom5fccbc22001-09-12 17:49:48 +00001264 memset(bp->buf, 0, size);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001265 bp->cnt = size;
1266 return (bp);
1267}
1268
1269void
Damien Miller65d1f572003-06-04 22:51:08 +10001270lostconn(int signo)
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001271{
1272 if (!iamremote)
Ben Lindstrom738f51e2001-06-21 03:08:58 +00001273 write(STDERR_FILENO, "lost connection\n", 16);
1274 if (signo)
1275 _exit(1);
1276 else
1277 exit(1);
Damien Millerd4a8b7e1999-10-27 13:42:43 +10001278}