1afde5170SEd Maste /* $OpenBSD: scp.c,v 1.203 2019/01/27 07:14:11 jmc Exp $ */ 2511b41d2SMark Murray /* 3b66f2d16SKris Kennaway * scp - secure remote copy. This is basically patched BSD rcp which 4b66f2d16SKris Kennaway * uses ssh to do the data transfer (instead of using rcmd). 5511b41d2SMark Murray * 6b66f2d16SKris Kennaway * NOTE: This version should NOT be suid root. (This uses ssh to 7b66f2d16SKris Kennaway * do the transfer and ssh has the necessary privileges.) 8511b41d2SMark Murray * 9511b41d2SMark Murray * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi> 10511b41d2SMark Murray * 11b66f2d16SKris Kennaway * As far as I am concerned, the code I have written for this software 12b66f2d16SKris Kennaway * can be used freely for any purpose. Any derived versions of this 13b66f2d16SKris Kennaway * software must be clearly marked as such, and if the derived work is 14b66f2d16SKris Kennaway * incompatible with the protocol description in the RFC file, it must be 15b66f2d16SKris Kennaway * called by a name other than "ssh" or "Secure Shell". 16b66f2d16SKris Kennaway */ 17b66f2d16SKris Kennaway /* 18b66f2d16SKris Kennaway * Copyright (c) 1999 Theo de Raadt. All rights reserved. 19b66f2d16SKris Kennaway * Copyright (c) 1999 Aaron Campbell. All rights reserved. 20b66f2d16SKris Kennaway * 21b66f2d16SKris Kennaway * Redistribution and use in source and binary forms, with or without 22b66f2d16SKris Kennaway * modification, are permitted provided that the following conditions 23b66f2d16SKris Kennaway * are met: 24b66f2d16SKris Kennaway * 1. Redistributions of source code must retain the above copyright 25b66f2d16SKris Kennaway * notice, this list of conditions and the following disclaimer. 26b66f2d16SKris Kennaway * 2. Redistributions in binary form must reproduce the above copyright 27b66f2d16SKris Kennaway * notice, this list of conditions and the following disclaimer in the 28b66f2d16SKris Kennaway * documentation and/or other materials provided with the distribution. 29b66f2d16SKris Kennaway * 30b66f2d16SKris Kennaway * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 31b66f2d16SKris Kennaway * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 32b66f2d16SKris Kennaway * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 33b66f2d16SKris Kennaway * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 34b66f2d16SKris Kennaway * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 35b66f2d16SKris Kennaway * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 36b66f2d16SKris Kennaway * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 37b66f2d16SKris Kennaway * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 38b66f2d16SKris Kennaway * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 39b66f2d16SKris Kennaway * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 40511b41d2SMark Murray */ 41511b41d2SMark Murray 42511b41d2SMark Murray /* 43b66f2d16SKris Kennaway * Parts from: 44b66f2d16SKris Kennaway * 45511b41d2SMark Murray * Copyright (c) 1983, 1990, 1992, 1993, 1995 46511b41d2SMark Murray * The Regents of the University of California. All rights reserved. 47511b41d2SMark Murray * 48511b41d2SMark Murray * Redistribution and use in source and binary forms, with or without 49511b41d2SMark Murray * modification, are permitted provided that the following conditions 50511b41d2SMark Murray * are met: 51511b41d2SMark Murray * 1. Redistributions of source code must retain the above copyright 52511b41d2SMark Murray * notice, this list of conditions and the following disclaimer. 53511b41d2SMark Murray * 2. Redistributions in binary form must reproduce the above copyright 54511b41d2SMark Murray * notice, this list of conditions and the following disclaimer in the 55511b41d2SMark Murray * documentation and/or other materials provided with the distribution. 56cf2b5f3bSDag-Erling Smørgrav * 3. Neither the name of the University nor the names of its contributors 57511b41d2SMark Murray * may be used to endorse or promote products derived from this software 58511b41d2SMark Murray * without specific prior written permission. 59511b41d2SMark Murray * 60511b41d2SMark Murray * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 61511b41d2SMark Murray * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 62511b41d2SMark Murray * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 63511b41d2SMark Murray * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 64511b41d2SMark Murray * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 65511b41d2SMark Murray * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 66511b41d2SMark Murray * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 67511b41d2SMark Murray * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 68511b41d2SMark Murray * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 69511b41d2SMark Murray * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 70511b41d2SMark Murray * SUCH DAMAGE. 71511b41d2SMark Murray * 72511b41d2SMark Murray */ 73511b41d2SMark Murray 74511b41d2SMark Murray #include "includes.h" 75333ee039SDag-Erling Smørgrav 76333ee039SDag-Erling Smørgrav #include <sys/types.h> 77333ee039SDag-Erling Smørgrav #ifdef HAVE_SYS_STAT_H 78333ee039SDag-Erling Smørgrav # include <sys/stat.h> 79333ee039SDag-Erling Smørgrav #endif 80d4af9e69SDag-Erling Smørgrav #ifdef HAVE_POLL_H 81d4af9e69SDag-Erling Smørgrav #include <poll.h> 82d4af9e69SDag-Erling Smørgrav #else 83d4af9e69SDag-Erling Smørgrav # ifdef HAVE_SYS_POLL_H 84d4af9e69SDag-Erling Smørgrav # include <sys/poll.h> 85d4af9e69SDag-Erling Smørgrav # endif 86d4af9e69SDag-Erling Smørgrav #endif 87333ee039SDag-Erling Smørgrav #ifdef HAVE_SYS_TIME_H 88333ee039SDag-Erling Smørgrav # include <sys/time.h> 89333ee039SDag-Erling Smørgrav #endif 90333ee039SDag-Erling Smørgrav #include <sys/wait.h> 91333ee039SDag-Erling Smørgrav #include <sys/uio.h> 92333ee039SDag-Erling Smørgrav 93333ee039SDag-Erling Smørgrav #include <ctype.h> 94333ee039SDag-Erling Smørgrav #include <dirent.h> 95333ee039SDag-Erling Smørgrav #include <errno.h> 96333ee039SDag-Erling Smørgrav #include <fcntl.h> 97afde5170SEd Maste #include <fnmatch.h> 98bc5531deSDag-Erling Smørgrav #include <limits.h> 99076ad2f8SDag-Erling Smørgrav #include <locale.h> 100333ee039SDag-Erling Smørgrav #include <pwd.h> 101333ee039SDag-Erling Smørgrav #include <signal.h> 102333ee039SDag-Erling Smørgrav #include <stdarg.h> 1034f52dfbbSDag-Erling Smørgrav #ifdef HAVE_STDINT_H 1044f52dfbbSDag-Erling Smørgrav #include <stdint.h> 1054f52dfbbSDag-Erling Smørgrav #endif 106333ee039SDag-Erling Smørgrav #include <stdio.h> 107333ee039SDag-Erling Smørgrav #include <stdlib.h> 108333ee039SDag-Erling Smørgrav #include <string.h> 109333ee039SDag-Erling Smørgrav #include <time.h> 110333ee039SDag-Erling Smørgrav #include <unistd.h> 1116888a9beSDag-Erling Smørgrav #if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) && !defined(BROKEN_STRNVIS) 112d4af9e69SDag-Erling Smørgrav #include <vis.h> 113d4af9e69SDag-Erling Smørgrav #endif 114511b41d2SMark Murray 115511b41d2SMark Murray #include "xmalloc.h" 11647dd1d1bSDag-Erling Smørgrav #include "ssh.h" 1171e8db6e2SBrian Feldman #include "atomicio.h" 1181e8db6e2SBrian Feldman #include "pathnames.h" 1191e8db6e2SBrian Feldman #include "log.h" 120ae1f160dSDag-Erling Smørgrav #include "misc.h" 121e73e9afaSDag-Erling Smørgrav #include "progressmeter.h" 122076ad2f8SDag-Erling Smørgrav #include "utf8.h" 123511b41d2SMark Murray 12483d2307dSDag-Erling Smørgrav extern char *__progname; 12583d2307dSDag-Erling Smørgrav 126d4af9e69SDag-Erling Smørgrav #define COPY_BUFLEN 16384 127d4af9e69SDag-Erling Smørgrav 12847dd1d1bSDag-Erling Smørgrav int do_cmd(char *host, char *remuser, int port, char *cmd, int *fdin, int *fdout); 12947dd1d1bSDag-Erling Smørgrav int do_cmd2(char *host, char *remuser, int port, char *cmd, int fdin, int fdout); 130511b41d2SMark Murray 131ae1f160dSDag-Erling Smørgrav /* Struct for addargs */ 132ae1f160dSDag-Erling Smørgrav arglist args; 1334a421b63SDag-Erling Smørgrav arglist remote_remote_args; 1345b9b2fafSBrian Feldman 135e73e9afaSDag-Erling Smørgrav /* Bandwidth limit */ 1364a421b63SDag-Erling Smørgrav long long limit_kbps = 0; 1374a421b63SDag-Erling Smørgrav struct bwlimit bwlimit; 138511b41d2SMark Murray 139511b41d2SMark Murray /* Name of current file being transferred. */ 140511b41d2SMark Murray char *curfile; 141511b41d2SMark Murray 142511b41d2SMark Murray /* This is set to non-zero to enable verbose mode. */ 143511b41d2SMark Murray int verbose_mode = 0; 144511b41d2SMark Murray 145511b41d2SMark Murray /* This is set to zero if the progressmeter is not desired. */ 146511b41d2SMark Murray int showprogress = 1; 147511b41d2SMark Murray 1484a421b63SDag-Erling Smørgrav /* 1494a421b63SDag-Erling Smørgrav * This is set to non-zero if remote-remote copy should be piped 1504a421b63SDag-Erling Smørgrav * through this process. 1514a421b63SDag-Erling Smørgrav */ 1524a421b63SDag-Erling Smørgrav int throughlocal = 0; 1534a421b63SDag-Erling Smørgrav 15447dd1d1bSDag-Erling Smørgrav /* Non-standard port to use for the ssh connection or -1. */ 15547dd1d1bSDag-Erling Smørgrav int sshport = -1; 15647dd1d1bSDag-Erling Smørgrav 157b66f2d16SKris Kennaway /* This is the program to execute for the secured connection. ("ssh" or -S) */ 1581e8db6e2SBrian Feldman char *ssh_program = _PATH_SSH_PROGRAM; 159b66f2d16SKris Kennaway 160e73e9afaSDag-Erling Smørgrav /* This is used to store the pid of ssh_program */ 161cf2b5f3bSDag-Erling Smørgrav pid_t do_cmd_pid = -1; 162cf2b5f3bSDag-Erling Smørgrav 163cf2b5f3bSDag-Erling Smørgrav static void 164cf2b5f3bSDag-Erling Smørgrav killchild(int signo) 165cf2b5f3bSDag-Erling Smørgrav { 166aa49c926SDag-Erling Smørgrav if (do_cmd_pid > 1) { 167d4ecd108SDag-Erling Smørgrav kill(do_cmd_pid, signo ? signo : SIGTERM); 168aa49c926SDag-Erling Smørgrav waitpid(do_cmd_pid, NULL, 0); 169aa49c926SDag-Erling Smørgrav } 170cf2b5f3bSDag-Erling Smørgrav 171d4ecd108SDag-Erling Smørgrav if (signo) 172cf2b5f3bSDag-Erling Smørgrav _exit(1); 173d4ecd108SDag-Erling Smørgrav exit(1); 174cf2b5f3bSDag-Erling Smørgrav } 175e73e9afaSDag-Erling Smørgrav 176e2f6069cSDag-Erling Smørgrav static void 177e2f6069cSDag-Erling Smørgrav suspchild(int signo) 178e2f6069cSDag-Erling Smørgrav { 179e2f6069cSDag-Erling Smørgrav int status; 180e2f6069cSDag-Erling Smørgrav 181e2f6069cSDag-Erling Smørgrav if (do_cmd_pid > 1) { 182e2f6069cSDag-Erling Smørgrav kill(do_cmd_pid, signo); 183e2f6069cSDag-Erling Smørgrav while (waitpid(do_cmd_pid, &status, WUNTRACED) == -1 && 184e2f6069cSDag-Erling Smørgrav errno == EINTR) 185e2f6069cSDag-Erling Smørgrav ; 186e2f6069cSDag-Erling Smørgrav kill(getpid(), SIGSTOP); 187e2f6069cSDag-Erling Smørgrav } 188e2f6069cSDag-Erling Smørgrav } 189e2f6069cSDag-Erling Smørgrav 190b74df5b2SDag-Erling Smørgrav static int 191b74df5b2SDag-Erling Smørgrav do_local_cmd(arglist *a) 192b74df5b2SDag-Erling Smørgrav { 193b74df5b2SDag-Erling Smørgrav u_int i; 194b74df5b2SDag-Erling Smørgrav int status; 195b74df5b2SDag-Erling Smørgrav pid_t pid; 196b74df5b2SDag-Erling Smørgrav 197b74df5b2SDag-Erling Smørgrav if (a->num == 0) 198b74df5b2SDag-Erling Smørgrav fatal("do_local_cmd: no arguments"); 199b74df5b2SDag-Erling Smørgrav 200b74df5b2SDag-Erling Smørgrav if (verbose_mode) { 201b74df5b2SDag-Erling Smørgrav fprintf(stderr, "Executing:"); 202b74df5b2SDag-Erling Smørgrav for (i = 0; i < a->num; i++) 203076ad2f8SDag-Erling Smørgrav fmprintf(stderr, " %s", a->list[i]); 204b74df5b2SDag-Erling Smørgrav fprintf(stderr, "\n"); 205b74df5b2SDag-Erling Smørgrav } 206b74df5b2SDag-Erling Smørgrav if ((pid = fork()) == -1) 207b74df5b2SDag-Erling Smørgrav fatal("do_local_cmd: fork: %s", strerror(errno)); 208b74df5b2SDag-Erling Smørgrav 209b74df5b2SDag-Erling Smørgrav if (pid == 0) { 210b74df5b2SDag-Erling Smørgrav execvp(a->list[0], a->list); 211b74df5b2SDag-Erling Smørgrav perror(a->list[0]); 212b74df5b2SDag-Erling Smørgrav exit(1); 213b74df5b2SDag-Erling Smørgrav } 214b74df5b2SDag-Erling Smørgrav 215b74df5b2SDag-Erling Smørgrav do_cmd_pid = pid; 216b74df5b2SDag-Erling Smørgrav signal(SIGTERM, killchild); 217b74df5b2SDag-Erling Smørgrav signal(SIGINT, killchild); 218b74df5b2SDag-Erling Smørgrav signal(SIGHUP, killchild); 219b74df5b2SDag-Erling Smørgrav 220b74df5b2SDag-Erling Smørgrav while (waitpid(pid, &status, 0) == -1) 221b74df5b2SDag-Erling Smørgrav if (errno != EINTR) 222b74df5b2SDag-Erling Smørgrav fatal("do_local_cmd: waitpid: %s", strerror(errno)); 223b74df5b2SDag-Erling Smørgrav 224b74df5b2SDag-Erling Smørgrav do_cmd_pid = -1; 225b74df5b2SDag-Erling Smørgrav 226b74df5b2SDag-Erling Smørgrav if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) 227b74df5b2SDag-Erling Smørgrav return (-1); 228b74df5b2SDag-Erling Smørgrav 229b74df5b2SDag-Erling Smørgrav return (0); 230b74df5b2SDag-Erling Smørgrav } 231b74df5b2SDag-Erling Smørgrav 232511b41d2SMark Murray /* 233511b41d2SMark Murray * This function executes the given command as the specified user on the 234511b41d2SMark Murray * given host. This returns < 0 if execution fails, and >= 0 otherwise. This 235511b41d2SMark Murray * assigns the input and output file descriptors on success. 236511b41d2SMark Murray */ 237511b41d2SMark Murray 238511b41d2SMark Murray int 23947dd1d1bSDag-Erling Smørgrav do_cmd(char *host, char *remuser, int port, char *cmd, int *fdin, int *fdout) 240511b41d2SMark Murray { 241511b41d2SMark Murray int pin[2], pout[2], reserved[2]; 242511b41d2SMark Murray 243511b41d2SMark Murray if (verbose_mode) 244076ad2f8SDag-Erling Smørgrav fmprintf(stderr, 245ae1f160dSDag-Erling Smørgrav "Executing: program %s host %s, user %s, command %s\n", 246ae1f160dSDag-Erling Smørgrav ssh_program, host, 247ae1f160dSDag-Erling Smørgrav remuser ? remuser : "(unspecified)", cmd); 248511b41d2SMark Murray 24947dd1d1bSDag-Erling Smørgrav if (port == -1) 25047dd1d1bSDag-Erling Smørgrav port = sshport; 25147dd1d1bSDag-Erling Smørgrav 252511b41d2SMark Murray /* 253511b41d2SMark Murray * Reserve two descriptors so that the real pipes won't get 254511b41d2SMark Murray * descriptors 0 and 1 because that will screw up dup2 below. 255511b41d2SMark Murray */ 256333ee039SDag-Erling Smørgrav if (pipe(reserved) < 0) 257333ee039SDag-Erling Smørgrav fatal("pipe: %s", strerror(errno)); 258511b41d2SMark Murray 259511b41d2SMark Murray /* Create a socket pair for communicating with ssh. */ 260511b41d2SMark Murray if (pipe(pin) < 0) 261511b41d2SMark Murray fatal("pipe: %s", strerror(errno)); 262511b41d2SMark Murray if (pipe(pout) < 0) 263511b41d2SMark Murray fatal("pipe: %s", strerror(errno)); 264511b41d2SMark Murray 265511b41d2SMark Murray /* Free the reserved descriptors. */ 266511b41d2SMark Murray close(reserved[0]); 267511b41d2SMark Murray close(reserved[1]); 268511b41d2SMark Murray 269e2f6069cSDag-Erling Smørgrav signal(SIGTSTP, suspchild); 270e2f6069cSDag-Erling Smørgrav signal(SIGTTIN, suspchild); 271e2f6069cSDag-Erling Smørgrav signal(SIGTTOU, suspchild); 272e2f6069cSDag-Erling Smørgrav 273cf2b5f3bSDag-Erling Smørgrav /* Fork a child to execute the command on the remote host using ssh. */ 274e73e9afaSDag-Erling Smørgrav do_cmd_pid = fork(); 275e73e9afaSDag-Erling Smørgrav if (do_cmd_pid == 0) { 276511b41d2SMark Murray /* Child. */ 277511b41d2SMark Murray close(pin[1]); 278511b41d2SMark Murray close(pout[0]); 279511b41d2SMark Murray dup2(pin[0], 0); 280511b41d2SMark Murray dup2(pout[1], 1); 281511b41d2SMark Murray close(pin[0]); 282511b41d2SMark Murray close(pout[1]); 283511b41d2SMark Murray 284b74df5b2SDag-Erling Smørgrav replacearg(&args, 0, "%s", ssh_program); 28547dd1d1bSDag-Erling Smørgrav if (port != -1) { 28647dd1d1bSDag-Erling Smørgrav addargs(&args, "-p"); 28747dd1d1bSDag-Erling Smørgrav addargs(&args, "%d", port); 28847dd1d1bSDag-Erling Smørgrav } 289b15c8340SDag-Erling Smørgrav if (remuser != NULL) { 290b15c8340SDag-Erling Smørgrav addargs(&args, "-l"); 291b15c8340SDag-Erling Smørgrav addargs(&args, "%s", remuser); 292b15c8340SDag-Erling Smørgrav } 293b15c8340SDag-Erling Smørgrav addargs(&args, "--"); 294ae1f160dSDag-Erling Smørgrav addargs(&args, "%s", host); 295ae1f160dSDag-Erling Smørgrav addargs(&args, "%s", cmd); 296511b41d2SMark Murray 2975b9b2fafSBrian Feldman execvp(ssh_program, args.list); 298b66f2d16SKris Kennaway perror(ssh_program); 299511b41d2SMark Murray exit(1); 300e73e9afaSDag-Erling Smørgrav } else if (do_cmd_pid == -1) { 301e73e9afaSDag-Erling Smørgrav fatal("fork: %s", strerror(errno)); 302511b41d2SMark Murray } 303511b41d2SMark Murray /* Parent. Close the other side, and return the local side. */ 304511b41d2SMark Murray close(pin[0]); 305511b41d2SMark Murray *fdout = pin[1]; 306511b41d2SMark Murray close(pout[1]); 307511b41d2SMark Murray *fdin = pout[0]; 308cf2b5f3bSDag-Erling Smørgrav signal(SIGTERM, killchild); 309cf2b5f3bSDag-Erling Smørgrav signal(SIGINT, killchild); 310cf2b5f3bSDag-Erling Smørgrav signal(SIGHUP, killchild); 311511b41d2SMark Murray return 0; 312511b41d2SMark Murray } 313511b41d2SMark Murray 3144a421b63SDag-Erling Smørgrav /* 315190cef3dSDag-Erling Smørgrav * This function executes a command similar to do_cmd(), but expects the 3164a421b63SDag-Erling Smørgrav * input and output descriptors to be setup by a previous call to do_cmd(). 3174a421b63SDag-Erling Smørgrav * This way the input and output of two commands can be connected. 3184a421b63SDag-Erling Smørgrav */ 3194a421b63SDag-Erling Smørgrav int 32047dd1d1bSDag-Erling Smørgrav do_cmd2(char *host, char *remuser, int port, char *cmd, int fdin, int fdout) 3214a421b63SDag-Erling Smørgrav { 3224a421b63SDag-Erling Smørgrav pid_t pid; 3234a421b63SDag-Erling Smørgrav int status; 3244a421b63SDag-Erling Smørgrav 3254a421b63SDag-Erling Smørgrav if (verbose_mode) 326076ad2f8SDag-Erling Smørgrav fmprintf(stderr, 3274a421b63SDag-Erling Smørgrav "Executing: 2nd program %s host %s, user %s, command %s\n", 3284a421b63SDag-Erling Smørgrav ssh_program, host, 3294a421b63SDag-Erling Smørgrav remuser ? remuser : "(unspecified)", cmd); 3304a421b63SDag-Erling Smørgrav 33147dd1d1bSDag-Erling Smørgrav if (port == -1) 33247dd1d1bSDag-Erling Smørgrav port = sshport; 33347dd1d1bSDag-Erling Smørgrav 3344a421b63SDag-Erling Smørgrav /* Fork a child to execute the command on the remote host using ssh. */ 3354a421b63SDag-Erling Smørgrav pid = fork(); 3364a421b63SDag-Erling Smørgrav if (pid == 0) { 3374a421b63SDag-Erling Smørgrav dup2(fdin, 0); 3384a421b63SDag-Erling Smørgrav dup2(fdout, 1); 3394a421b63SDag-Erling Smørgrav 3404a421b63SDag-Erling Smørgrav replacearg(&args, 0, "%s", ssh_program); 34147dd1d1bSDag-Erling Smørgrav if (port != -1) { 34247dd1d1bSDag-Erling Smørgrav addargs(&args, "-p"); 34347dd1d1bSDag-Erling Smørgrav addargs(&args, "%d", port); 34447dd1d1bSDag-Erling Smørgrav } 3454a421b63SDag-Erling Smørgrav if (remuser != NULL) { 3464a421b63SDag-Erling Smørgrav addargs(&args, "-l"); 3474a421b63SDag-Erling Smørgrav addargs(&args, "%s", remuser); 3484a421b63SDag-Erling Smørgrav } 3494a421b63SDag-Erling Smørgrav addargs(&args, "--"); 3504a421b63SDag-Erling Smørgrav addargs(&args, "%s", host); 3514a421b63SDag-Erling Smørgrav addargs(&args, "%s", cmd); 3524a421b63SDag-Erling Smørgrav 3534a421b63SDag-Erling Smørgrav execvp(ssh_program, args.list); 3544a421b63SDag-Erling Smørgrav perror(ssh_program); 3554a421b63SDag-Erling Smørgrav exit(1); 3564a421b63SDag-Erling Smørgrav } else if (pid == -1) { 3574a421b63SDag-Erling Smørgrav fatal("fork: %s", strerror(errno)); 3584a421b63SDag-Erling Smørgrav } 3594a421b63SDag-Erling Smørgrav while (waitpid(pid, &status, 0) == -1) 3604a421b63SDag-Erling Smørgrav if (errno != EINTR) 3614a421b63SDag-Erling Smørgrav fatal("do_cmd2: waitpid: %s", strerror(errno)); 3624a421b63SDag-Erling Smørgrav return 0; 3634a421b63SDag-Erling Smørgrav } 3644a421b63SDag-Erling Smørgrav 365511b41d2SMark Murray typedef struct { 366d4ecd108SDag-Erling Smørgrav size_t cnt; 367511b41d2SMark Murray char *buf; 368511b41d2SMark Murray } BUF; 369511b41d2SMark Murray 370511b41d2SMark Murray BUF *allocbuf(BUF *, int, int); 371511b41d2SMark Murray void lostconn(int); 372511b41d2SMark Murray int okname(char *); 373511b41d2SMark Murray void run_err(const char *,...); 374511b41d2SMark Murray void verifydir(char *); 375511b41d2SMark Murray 376511b41d2SMark Murray struct passwd *pwd; 377511b41d2SMark Murray uid_t userid; 378511b41d2SMark Murray int errs, remin, remout; 379afde5170SEd Maste int Tflag, pflag, iamremote, iamrecursive, targetshouldbedirectory; 380511b41d2SMark Murray 381511b41d2SMark Murray #define CMDNEEDS 64 382511b41d2SMark Murray char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ 383511b41d2SMark Murray 384511b41d2SMark Murray int response(void); 385511b41d2SMark Murray void rsource(char *, struct stat *); 386afde5170SEd Maste void sink(int, char *[], const char *); 387511b41d2SMark Murray void source(int, char *[]); 388511b41d2SMark Murray void tolocal(int, char *[]); 38947dd1d1bSDag-Erling Smørgrav void toremote(int, char *[]); 390511b41d2SMark Murray void usage(void); 391511b41d2SMark Murray 392511b41d2SMark Murray int 393cf2b5f3bSDag-Erling Smørgrav main(int argc, char **argv) 394511b41d2SMark Murray { 395333ee039SDag-Erling Smørgrav int ch, fflag, tflag, status, n; 39647dd1d1bSDag-Erling Smørgrav char **newargv; 3974a421b63SDag-Erling Smørgrav const char *errstr; 398511b41d2SMark Murray extern char *optarg; 399511b41d2SMark Murray extern int optind; 400511b41d2SMark Murray 401b74df5b2SDag-Erling Smørgrav /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ 402b74df5b2SDag-Erling Smørgrav sanitise_stdfd(); 403b74df5b2SDag-Erling Smørgrav 404ca86bcf2SDag-Erling Smørgrav msetlocale(); 405076ad2f8SDag-Erling Smørgrav 406333ee039SDag-Erling Smørgrav /* Copy argv, because we modify it */ 407ca86bcf2SDag-Erling Smørgrav newargv = xcalloc(MAXIMUM(argc + 1, 1), sizeof(*newargv)); 408333ee039SDag-Erling Smørgrav for (n = 0; n < argc; n++) 409333ee039SDag-Erling Smørgrav newargv[n] = xstrdup(argv[n]); 410333ee039SDag-Erling Smørgrav argv = newargv; 411333ee039SDag-Erling Smørgrav 412cf2b5f3bSDag-Erling Smørgrav __progname = ssh_get_progname(argv[0]); 41383d2307dSDag-Erling Smørgrav 414b74df5b2SDag-Erling Smørgrav memset(&args, '\0', sizeof(args)); 4154a421b63SDag-Erling Smørgrav memset(&remote_remote_args, '\0', sizeof(remote_remote_args)); 4164a421b63SDag-Erling Smørgrav args.list = remote_remote_args.list = NULL; 417b74df5b2SDag-Erling Smørgrav addargs(&args, "%s", ssh_program); 418ae1f160dSDag-Erling Smørgrav addargs(&args, "-x"); 4194a421b63SDag-Erling Smørgrav addargs(&args, "-oForwardAgent=no"); 4204a421b63SDag-Erling Smørgrav addargs(&args, "-oPermitLocalCommand=no"); 4214a421b63SDag-Erling Smørgrav addargs(&args, "-oClearAllForwardings=yes"); 42247dd1d1bSDag-Erling Smørgrav addargs(&args, "-oRemoteCommand=none"); 42347dd1d1bSDag-Erling Smørgrav addargs(&args, "-oRequestTTY=no"); 4245b9b2fafSBrian Feldman 425afde5170SEd Maste fflag = Tflag = tflag = 0; 426afde5170SEd Maste while ((ch = getopt(argc, argv, 427afde5170SEd Maste "dfl:prtTvBCc:i:P:q12346S:o:F:")) != -1) { 428511b41d2SMark Murray switch (ch) { 429511b41d2SMark Murray /* User-visible flags. */ 430e73e9afaSDag-Erling Smørgrav case '1': 4314f52dfbbSDag-Erling Smørgrav fatal("SSH protocol v.1 is no longer supported"); 4324f52dfbbSDag-Erling Smørgrav break; 433e73e9afaSDag-Erling Smørgrav case '2': 4344f52dfbbSDag-Erling Smørgrav /* Ignored */ 4354f52dfbbSDag-Erling Smørgrav break; 436511b41d2SMark Murray case '4': 437511b41d2SMark Murray case '6': 4385b9b2fafSBrian Feldman case 'C': 439ae1f160dSDag-Erling Smørgrav addargs(&args, "-%c", ch); 4404a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "-%c", ch); 4414a421b63SDag-Erling Smørgrav break; 4424a421b63SDag-Erling Smørgrav case '3': 4434a421b63SDag-Erling Smørgrav throughlocal = 1; 4445b9b2fafSBrian Feldman break; 4455b9b2fafSBrian Feldman case 'o': 4465b9b2fafSBrian Feldman case 'c': 4475b9b2fafSBrian Feldman case 'i': 448ae1f160dSDag-Erling Smørgrav case 'F': 4494a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "-%c", ch); 4504a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "%s", optarg); 451b15c8340SDag-Erling Smørgrav addargs(&args, "-%c", ch); 452b15c8340SDag-Erling Smørgrav addargs(&args, "%s", optarg); 4535b9b2fafSBrian Feldman break; 4545b9b2fafSBrian Feldman case 'P': 45547dd1d1bSDag-Erling Smørgrav sshport = a2port(optarg); 45647dd1d1bSDag-Erling Smørgrav if (sshport <= 0) 45747dd1d1bSDag-Erling Smørgrav fatal("bad port \"%s\"\n", optarg); 4585b9b2fafSBrian Feldman break; 4595b9b2fafSBrian Feldman case 'B': 4604a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "-oBatchmode=yes"); 4614a421b63SDag-Erling Smørgrav addargs(&args, "-oBatchmode=yes"); 462511b41d2SMark Murray break; 463e73e9afaSDag-Erling Smørgrav case 'l': 4644a421b63SDag-Erling Smørgrav limit_kbps = strtonum(optarg, 1, 100 * 1024 * 1024, 4654a421b63SDag-Erling Smørgrav &errstr); 4664a421b63SDag-Erling Smørgrav if (errstr != NULL) 467e73e9afaSDag-Erling Smørgrav usage(); 4684a421b63SDag-Erling Smørgrav limit_kbps *= 1024; /* kbps */ 4694a421b63SDag-Erling Smørgrav bandwidth_limit_init(&bwlimit, limit_kbps, COPY_BUFLEN); 470e73e9afaSDag-Erling Smørgrav break; 471511b41d2SMark Murray case 'p': 472511b41d2SMark Murray pflag = 1; 473511b41d2SMark Murray break; 474511b41d2SMark Murray case 'r': 475511b41d2SMark Murray iamrecursive = 1; 476511b41d2SMark Murray break; 477b66f2d16SKris Kennaway case 'S': 4785b9b2fafSBrian Feldman ssh_program = xstrdup(optarg); 4795b9b2fafSBrian Feldman break; 4805b9b2fafSBrian Feldman case 'v': 481ae1f160dSDag-Erling Smørgrav addargs(&args, "-v"); 4824a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "-v"); 4835b9b2fafSBrian Feldman verbose_mode = 1; 4845b9b2fafSBrian Feldman break; 4855b9b2fafSBrian Feldman case 'q': 4861ec0d754SDag-Erling Smørgrav addargs(&args, "-q"); 4874a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "-q"); 4885b9b2fafSBrian Feldman showprogress = 0; 489b66f2d16SKris Kennaway break; 490b66f2d16SKris Kennaway 491511b41d2SMark Murray /* Server options. */ 492511b41d2SMark Murray case 'd': 493511b41d2SMark Murray targetshouldbedirectory = 1; 494511b41d2SMark Murray break; 495511b41d2SMark Murray case 'f': /* "from" */ 496511b41d2SMark Murray iamremote = 1; 497511b41d2SMark Murray fflag = 1; 498511b41d2SMark Murray break; 499511b41d2SMark Murray case 't': /* "to" */ 500511b41d2SMark Murray iamremote = 1; 501511b41d2SMark Murray tflag = 1; 50283d2307dSDag-Erling Smørgrav #ifdef HAVE_CYGWIN 50383d2307dSDag-Erling Smørgrav setmode(0, O_BINARY); 50483d2307dSDag-Erling Smørgrav #endif 505511b41d2SMark Murray break; 506afde5170SEd Maste case 'T': 507afde5170SEd Maste Tflag = 1; 508afde5170SEd Maste break; 509511b41d2SMark Murray default: 510511b41d2SMark Murray usage(); 511511b41d2SMark Murray } 512afde5170SEd Maste } 513511b41d2SMark Murray argc -= optind; 514511b41d2SMark Murray argv += optind; 515511b41d2SMark Murray 516511b41d2SMark Murray if ((pwd = getpwuid(userid = getuid())) == NULL) 517cf2b5f3bSDag-Erling Smørgrav fatal("unknown user %u", (u_int) userid); 518511b41d2SMark Murray 519d4af9e69SDag-Erling Smørgrav if (!isatty(STDOUT_FILENO)) 520511b41d2SMark Murray showprogress = 0; 521511b41d2SMark Murray 522acc1a9efSDag-Erling Smørgrav if (pflag) { 523acc1a9efSDag-Erling Smørgrav /* Cannot pledge: -p allows setuid/setgid files... */ 524acc1a9efSDag-Erling Smørgrav } else { 525acc1a9efSDag-Erling Smørgrav if (pledge("stdio rpath wpath cpath fattr tty proc exec", 526acc1a9efSDag-Erling Smørgrav NULL) == -1) { 527acc1a9efSDag-Erling Smørgrav perror("pledge"); 528acc1a9efSDag-Erling Smørgrav exit(1); 529acc1a9efSDag-Erling Smørgrav } 530acc1a9efSDag-Erling Smørgrav } 531acc1a9efSDag-Erling Smørgrav 532511b41d2SMark Murray remin = STDIN_FILENO; 533511b41d2SMark Murray remout = STDOUT_FILENO; 534511b41d2SMark Murray 535511b41d2SMark Murray if (fflag) { 536511b41d2SMark Murray /* Follow "protocol", send data. */ 537511b41d2SMark Murray (void) response(); 538511b41d2SMark Murray source(argc, argv); 539511b41d2SMark Murray exit(errs != 0); 540511b41d2SMark Murray } 541511b41d2SMark Murray if (tflag) { 542511b41d2SMark Murray /* Receive data. */ 543afde5170SEd Maste sink(argc, argv, NULL); 544511b41d2SMark Murray exit(errs != 0); 545511b41d2SMark Murray } 546511b41d2SMark Murray if (argc < 2) 547511b41d2SMark Murray usage(); 548511b41d2SMark Murray if (argc > 2) 549511b41d2SMark Murray targetshouldbedirectory = 1; 550511b41d2SMark Murray 551511b41d2SMark Murray remin = remout = -1; 552e73e9afaSDag-Erling Smørgrav do_cmd_pid = -1; 553511b41d2SMark Murray /* Command to be executed on remote system using "ssh". */ 5541e8db6e2SBrian Feldman (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", 5551e8db6e2SBrian Feldman verbose_mode ? " -v" : "", 556511b41d2SMark Murray iamrecursive ? " -r" : "", pflag ? " -p" : "", 557511b41d2SMark Murray targetshouldbedirectory ? " -d" : ""); 558511b41d2SMark Murray 559511b41d2SMark Murray (void) signal(SIGPIPE, lostconn); 560511b41d2SMark Murray 56147dd1d1bSDag-Erling Smørgrav if (colon(argv[argc - 1])) /* Dest is remote host. */ 56247dd1d1bSDag-Erling Smørgrav toremote(argc, argv); 563511b41d2SMark Murray else { 564511b41d2SMark Murray if (targetshouldbedirectory) 565511b41d2SMark Murray verifydir(argv[argc - 1]); 566b74df5b2SDag-Erling Smørgrav tolocal(argc, argv); /* Dest is local host. */ 567511b41d2SMark Murray } 568e73e9afaSDag-Erling Smørgrav /* 569e73e9afaSDag-Erling Smørgrav * Finally check the exit status of the ssh process, if one was forked 570cce7d346SDag-Erling Smørgrav * and no error has occurred yet 571e73e9afaSDag-Erling Smørgrav */ 572e73e9afaSDag-Erling Smørgrav if (do_cmd_pid != -1 && errs == 0) { 573e73e9afaSDag-Erling Smørgrav if (remin != -1) 574e73e9afaSDag-Erling Smørgrav (void) close(remin); 575e73e9afaSDag-Erling Smørgrav if (remout != -1) 576e73e9afaSDag-Erling Smørgrav (void) close(remout); 577e73e9afaSDag-Erling Smørgrav if (waitpid(do_cmd_pid, &status, 0) == -1) 578e73e9afaSDag-Erling Smørgrav errs = 1; 579e73e9afaSDag-Erling Smørgrav else { 580e73e9afaSDag-Erling Smørgrav if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) 581e73e9afaSDag-Erling Smørgrav errs = 1; 582e73e9afaSDag-Erling Smørgrav } 583e73e9afaSDag-Erling Smørgrav } 584511b41d2SMark Murray exit(errs != 0); 585511b41d2SMark Murray } 586511b41d2SMark Murray 5874a421b63SDag-Erling Smørgrav /* Callback from atomicio6 to update progress meter and limit bandwidth */ 5884a421b63SDag-Erling Smørgrav static int 5894a421b63SDag-Erling Smørgrav scpio(void *_cnt, size_t s) 590d4af9e69SDag-Erling Smørgrav { 5914a421b63SDag-Erling Smørgrav off_t *cnt = (off_t *)_cnt; 592d4af9e69SDag-Erling Smørgrav 5934a421b63SDag-Erling Smørgrav *cnt += s; 5944a421b63SDag-Erling Smørgrav if (limit_kbps > 0) 5954a421b63SDag-Erling Smørgrav bandwidth_limit(&bwlimit, s); 5964a421b63SDag-Erling Smørgrav return 0; 597d4af9e69SDag-Erling Smørgrav } 598d4af9e69SDag-Erling Smørgrav 599e4a9863fSDag-Erling Smørgrav static int 600e4a9863fSDag-Erling Smørgrav do_times(int fd, int verb, const struct stat *sb) 601e4a9863fSDag-Erling Smørgrav { 602e4a9863fSDag-Erling Smørgrav /* strlen(2^64) == 20; strlen(10^6) == 7 */ 603e4a9863fSDag-Erling Smørgrav char buf[(20 + 7 + 2) * 2 + 2]; 604e4a9863fSDag-Erling Smørgrav 605e4a9863fSDag-Erling Smørgrav (void)snprintf(buf, sizeof(buf), "T%llu 0 %llu 0\n", 606e4a9863fSDag-Erling Smørgrav (unsigned long long) (sb->st_mtime < 0 ? 0 : sb->st_mtime), 607e4a9863fSDag-Erling Smørgrav (unsigned long long) (sb->st_atime < 0 ? 0 : sb->st_atime)); 608e4a9863fSDag-Erling Smørgrav if (verb) { 609e4a9863fSDag-Erling Smørgrav fprintf(stderr, "File mtime %lld atime %lld\n", 610e4a9863fSDag-Erling Smørgrav (long long)sb->st_mtime, (long long)sb->st_atime); 611e4a9863fSDag-Erling Smørgrav fprintf(stderr, "Sending file timestamps: %s", buf); 612e4a9863fSDag-Erling Smørgrav } 613e4a9863fSDag-Erling Smørgrav (void) atomicio(vwrite, fd, buf, strlen(buf)); 614e4a9863fSDag-Erling Smørgrav return (response()); 615e4a9863fSDag-Erling Smørgrav } 616e4a9863fSDag-Erling Smørgrav 61747dd1d1bSDag-Erling Smørgrav static int 61847dd1d1bSDag-Erling Smørgrav parse_scp_uri(const char *uri, char **userp, char **hostp, int *portp, 61947dd1d1bSDag-Erling Smørgrav char **pathp) 620511b41d2SMark Murray { 62147dd1d1bSDag-Erling Smørgrav int r; 62247dd1d1bSDag-Erling Smørgrav 62347dd1d1bSDag-Erling Smørgrav r = parse_uri("scp", uri, userp, hostp, portp, pathp); 62447dd1d1bSDag-Erling Smørgrav if (r == 0 && *pathp == NULL) 62547dd1d1bSDag-Erling Smørgrav *pathp = xstrdup("."); 62647dd1d1bSDag-Erling Smørgrav return r; 62747dd1d1bSDag-Erling Smørgrav } 62847dd1d1bSDag-Erling Smørgrav 62947dd1d1bSDag-Erling Smørgrav void 63047dd1d1bSDag-Erling Smørgrav toremote(int argc, char **argv) 63147dd1d1bSDag-Erling Smørgrav { 63247dd1d1bSDag-Erling Smørgrav char *suser = NULL, *host = NULL, *src = NULL; 63347dd1d1bSDag-Erling Smørgrav char *bp, *tuser, *thost, *targ; 63447dd1d1bSDag-Erling Smørgrav int sport = -1, tport = -1; 635b74df5b2SDag-Erling Smørgrav arglist alist; 63647dd1d1bSDag-Erling Smørgrav int i, r; 6374a421b63SDag-Erling Smørgrav u_int j; 638b74df5b2SDag-Erling Smørgrav 639b74df5b2SDag-Erling Smørgrav memset(&alist, '\0', sizeof(alist)); 640b74df5b2SDag-Erling Smørgrav alist.list = NULL; 641511b41d2SMark Murray 64247dd1d1bSDag-Erling Smørgrav /* Parse target */ 64347dd1d1bSDag-Erling Smørgrav r = parse_scp_uri(argv[argc - 1], &tuser, &thost, &tport, &targ); 64447dd1d1bSDag-Erling Smørgrav if (r == -1) { 64547dd1d1bSDag-Erling Smørgrav fmprintf(stderr, "%s: invalid uri\n", argv[argc - 1]); 64647dd1d1bSDag-Erling Smørgrav ++errs; 64747dd1d1bSDag-Erling Smørgrav goto out; 648511b41d2SMark Murray } 64947dd1d1bSDag-Erling Smørgrav if (r != 0) { 65047dd1d1bSDag-Erling Smørgrav if (parse_user_host_path(argv[argc - 1], &tuser, &thost, 65147dd1d1bSDag-Erling Smørgrav &targ) == -1) { 65247dd1d1bSDag-Erling Smørgrav fmprintf(stderr, "%s: invalid target\n", argv[argc - 1]); 65347dd1d1bSDag-Erling Smørgrav ++errs; 65447dd1d1bSDag-Erling Smørgrav goto out; 65547dd1d1bSDag-Erling Smørgrav } 65647dd1d1bSDag-Erling Smørgrav } 657b74df5b2SDag-Erling Smørgrav if (tuser != NULL && !okname(tuser)) { 65847dd1d1bSDag-Erling Smørgrav ++errs; 65947dd1d1bSDag-Erling Smørgrav goto out; 660b74df5b2SDag-Erling Smørgrav } 661b74df5b2SDag-Erling Smørgrav 66247dd1d1bSDag-Erling Smørgrav /* Parse source files */ 663511b41d2SMark Murray for (i = 0; i < argc - 1; i++) { 66447dd1d1bSDag-Erling Smørgrav free(suser); 66547dd1d1bSDag-Erling Smørgrav free(host); 66647dd1d1bSDag-Erling Smørgrav free(src); 66747dd1d1bSDag-Erling Smørgrav r = parse_scp_uri(argv[i], &suser, &host, &sport, &src); 66847dd1d1bSDag-Erling Smørgrav if (r == -1) { 66947dd1d1bSDag-Erling Smørgrav fmprintf(stderr, "%s: invalid uri\n", argv[i]); 67047dd1d1bSDag-Erling Smørgrav ++errs; 6714a421b63SDag-Erling Smørgrav continue; 6724a421b63SDag-Erling Smørgrav } 67347dd1d1bSDag-Erling Smørgrav if (r != 0) { 67447dd1d1bSDag-Erling Smørgrav parse_user_host_path(argv[i], &suser, &host, &src); 67547dd1d1bSDag-Erling Smørgrav } 67647dd1d1bSDag-Erling Smørgrav if (suser != NULL && !okname(suser)) { 67747dd1d1bSDag-Erling Smørgrav ++errs; 67847dd1d1bSDag-Erling Smørgrav continue; 67947dd1d1bSDag-Erling Smørgrav } 68047dd1d1bSDag-Erling Smørgrav if (host && throughlocal) { /* extended remote to remote */ 681462c32cbSDag-Erling Smørgrav xasprintf(&bp, "%s -f %s%s", cmd, 682462c32cbSDag-Erling Smørgrav *src == '-' ? "-- " : "", src); 68347dd1d1bSDag-Erling Smørgrav if (do_cmd(host, suser, sport, bp, &remin, &remout) < 0) 6844a421b63SDag-Erling Smørgrav exit(1); 685e4a9863fSDag-Erling Smørgrav free(bp); 686462c32cbSDag-Erling Smørgrav xasprintf(&bp, "%s -t %s%s", cmd, 687462c32cbSDag-Erling Smørgrav *targ == '-' ? "-- " : "", targ); 68847dd1d1bSDag-Erling Smørgrav if (do_cmd2(thost, tuser, tport, bp, remin, remout) < 0) 6894a421b63SDag-Erling Smørgrav exit(1); 690e4a9863fSDag-Erling Smørgrav free(bp); 6914a421b63SDag-Erling Smørgrav (void) close(remin); 6924a421b63SDag-Erling Smørgrav (void) close(remout); 6934a421b63SDag-Erling Smørgrav remin = remout = -1; 69447dd1d1bSDag-Erling Smørgrav } else if (host) { /* standard remote to remote */ 69547dd1d1bSDag-Erling Smørgrav if (tport != -1 && tport != SSH_DEFAULT_PORT) { 69647dd1d1bSDag-Erling Smørgrav /* This would require the remote support URIs */ 69747dd1d1bSDag-Erling Smørgrav fatal("target port not supported with two " 69847dd1d1bSDag-Erling Smørgrav "remote hosts without the -3 option"); 69947dd1d1bSDag-Erling Smørgrav } 70047dd1d1bSDag-Erling Smørgrav 701b74df5b2SDag-Erling Smørgrav freeargs(&alist); 702b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", ssh_program); 703b74df5b2SDag-Erling Smørgrav addargs(&alist, "-x"); 7044a421b63SDag-Erling Smørgrav addargs(&alist, "-oClearAllForwardings=yes"); 705b74df5b2SDag-Erling Smørgrav addargs(&alist, "-n"); 7064a421b63SDag-Erling Smørgrav for (j = 0; j < remote_remote_args.num; j++) { 7074a421b63SDag-Erling Smørgrav addargs(&alist, "%s", 7084a421b63SDag-Erling Smørgrav remote_remote_args.list[j]); 7094a421b63SDag-Erling Smørgrav } 710b74df5b2SDag-Erling Smørgrav 71147dd1d1bSDag-Erling Smørgrav if (sport != -1) { 71247dd1d1bSDag-Erling Smørgrav addargs(&alist, "-p"); 71347dd1d1bSDag-Erling Smørgrav addargs(&alist, "%d", sport); 71447dd1d1bSDag-Erling Smørgrav } 71547dd1d1bSDag-Erling Smørgrav if (suser) { 716b74df5b2SDag-Erling Smørgrav addargs(&alist, "-l"); 717b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", suser); 718b74df5b2SDag-Erling Smørgrav } 719b15c8340SDag-Erling Smørgrav addargs(&alist, "--"); 720b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", host); 721b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", cmd); 722b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", src); 723b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s%s%s:%s", 724511b41d2SMark Murray tuser ? tuser : "", tuser ? "@" : "", 725511b41d2SMark Murray thost, targ); 726b74df5b2SDag-Erling Smørgrav if (do_local_cmd(&alist) != 0) 7271ec0d754SDag-Erling Smørgrav errs = 1; 728511b41d2SMark Murray } else { /* local to remote */ 729511b41d2SMark Murray if (remin == -1) { 730462c32cbSDag-Erling Smørgrav xasprintf(&bp, "%s -t %s%s", cmd, 731462c32cbSDag-Erling Smørgrav *targ == '-' ? "-- " : "", targ); 73247dd1d1bSDag-Erling Smørgrav if (do_cmd(thost, tuser, tport, bp, &remin, 733333ee039SDag-Erling Smørgrav &remout) < 0) 734511b41d2SMark Murray exit(1); 735511b41d2SMark Murray if (response() < 0) 736511b41d2SMark Murray exit(1); 737e4a9863fSDag-Erling Smørgrav free(bp); 738511b41d2SMark Murray } 739511b41d2SMark Murray source(1, argv + i); 740511b41d2SMark Murray } 741511b41d2SMark Murray } 74247dd1d1bSDag-Erling Smørgrav out: 74347dd1d1bSDag-Erling Smørgrav free(tuser); 74447dd1d1bSDag-Erling Smørgrav free(thost); 74547dd1d1bSDag-Erling Smørgrav free(targ); 74647dd1d1bSDag-Erling Smørgrav free(suser); 74747dd1d1bSDag-Erling Smørgrav free(host); 74847dd1d1bSDag-Erling Smørgrav free(src); 749511b41d2SMark Murray } 750511b41d2SMark Murray 751511b41d2SMark Murray void 752cf2b5f3bSDag-Erling Smørgrav tolocal(int argc, char **argv) 753511b41d2SMark Murray { 75447dd1d1bSDag-Erling Smørgrav char *bp, *host = NULL, *src = NULL, *suser = NULL; 755b74df5b2SDag-Erling Smørgrav arglist alist; 75647dd1d1bSDag-Erling Smørgrav int i, r, sport = -1; 757b74df5b2SDag-Erling Smørgrav 758b74df5b2SDag-Erling Smørgrav memset(&alist, '\0', sizeof(alist)); 759b74df5b2SDag-Erling Smørgrav alist.list = NULL; 760511b41d2SMark Murray 761511b41d2SMark Murray for (i = 0; i < argc - 1; i++) { 76247dd1d1bSDag-Erling Smørgrav free(suser); 76347dd1d1bSDag-Erling Smørgrav free(host); 76447dd1d1bSDag-Erling Smørgrav free(src); 76547dd1d1bSDag-Erling Smørgrav r = parse_scp_uri(argv[i], &suser, &host, &sport, &src); 76647dd1d1bSDag-Erling Smørgrav if (r == -1) { 76747dd1d1bSDag-Erling Smørgrav fmprintf(stderr, "%s: invalid uri\n", argv[i]); 76847dd1d1bSDag-Erling Smørgrav ++errs; 76947dd1d1bSDag-Erling Smørgrav continue; 77047dd1d1bSDag-Erling Smørgrav } 77147dd1d1bSDag-Erling Smørgrav if (r != 0) 77247dd1d1bSDag-Erling Smørgrav parse_user_host_path(argv[i], &suser, &host, &src); 77347dd1d1bSDag-Erling Smørgrav if (suser != NULL && !okname(suser)) { 77447dd1d1bSDag-Erling Smørgrav ++errs; 77547dd1d1bSDag-Erling Smørgrav continue; 77647dd1d1bSDag-Erling Smørgrav } 77747dd1d1bSDag-Erling Smørgrav if (!host) { /* Local to local. */ 778b74df5b2SDag-Erling Smørgrav freeargs(&alist); 779b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", _PATH_CP); 780b74df5b2SDag-Erling Smørgrav if (iamrecursive) 781b74df5b2SDag-Erling Smørgrav addargs(&alist, "-r"); 782b74df5b2SDag-Erling Smørgrav if (pflag) 783b74df5b2SDag-Erling Smørgrav addargs(&alist, "-p"); 784b15c8340SDag-Erling Smørgrav addargs(&alist, "--"); 785b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", argv[i]); 786b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", argv[argc-1]); 787b74df5b2SDag-Erling Smørgrav if (do_local_cmd(&alist)) 788511b41d2SMark Murray ++errs; 789511b41d2SMark Murray continue; 790511b41d2SMark Murray } 79147dd1d1bSDag-Erling Smørgrav /* Remote to local. */ 792462c32cbSDag-Erling Smørgrav xasprintf(&bp, "%s -f %s%s", 793462c32cbSDag-Erling Smørgrav cmd, *src == '-' ? "-- " : "", src); 79447dd1d1bSDag-Erling Smørgrav if (do_cmd(host, suser, sport, bp, &remin, &remout) < 0) { 795e4a9863fSDag-Erling Smørgrav free(bp); 796511b41d2SMark Murray ++errs; 797511b41d2SMark Murray continue; 798511b41d2SMark Murray } 799e4a9863fSDag-Erling Smørgrav free(bp); 800afde5170SEd Maste sink(1, argv + argc - 1, src); 801511b41d2SMark Murray (void) close(remin); 802511b41d2SMark Murray remin = remout = -1; 803511b41d2SMark Murray } 80447dd1d1bSDag-Erling Smørgrav free(suser); 80547dd1d1bSDag-Erling Smørgrav free(host); 80647dd1d1bSDag-Erling Smørgrav free(src); 807511b41d2SMark Murray } 808511b41d2SMark Murray 809511b41d2SMark Murray void 810cf2b5f3bSDag-Erling Smørgrav source(int argc, char **argv) 811511b41d2SMark Murray { 812511b41d2SMark Murray struct stat stb; 813511b41d2SMark Murray static BUF buffer; 814511b41d2SMark Murray BUF *bp; 815d4af9e69SDag-Erling Smørgrav off_t i, statbytes; 816a0ee8cc6SDag-Erling Smørgrav size_t amt, nr; 817d4ecd108SDag-Erling Smørgrav int fd = -1, haderr, indx; 818bc5531deSDag-Erling Smørgrav char *last, *name, buf[2048], encname[PATH_MAX]; 8191e8db6e2SBrian Feldman int len; 820511b41d2SMark Murray 821511b41d2SMark Murray for (indx = 0; indx < argc; ++indx) { 822511b41d2SMark Murray name = argv[indx]; 823511b41d2SMark Murray statbytes = 0; 8241e8db6e2SBrian Feldman len = strlen(name); 8251e8db6e2SBrian Feldman while (len > 1 && name[len-1] == '/') 8261e8db6e2SBrian Feldman name[--len] = '\0'; 827d4af9e69SDag-Erling Smørgrav if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) < 0) 828511b41d2SMark Murray goto syserr; 829d4af9e69SDag-Erling Smørgrav if (strchr(name, '\n') != NULL) { 830d4af9e69SDag-Erling Smørgrav strnvis(encname, name, sizeof(encname), VIS_NL); 831d4af9e69SDag-Erling Smørgrav name = encname; 832d4af9e69SDag-Erling Smørgrav } 833511b41d2SMark Murray if (fstat(fd, &stb) < 0) { 834511b41d2SMark Murray syserr: run_err("%s: %s", name, strerror(errno)); 835511b41d2SMark Murray goto next; 836511b41d2SMark Murray } 837d4af9e69SDag-Erling Smørgrav if (stb.st_size < 0) { 838d4af9e69SDag-Erling Smørgrav run_err("%s: %s", name, "Negative file size"); 839d4af9e69SDag-Erling Smørgrav goto next; 840d4af9e69SDag-Erling Smørgrav } 841d4af9e69SDag-Erling Smørgrav unset_nonblock(fd); 842511b41d2SMark Murray switch (stb.st_mode & S_IFMT) { 843511b41d2SMark Murray case S_IFREG: 844511b41d2SMark Murray break; 845511b41d2SMark Murray case S_IFDIR: 846511b41d2SMark Murray if (iamrecursive) { 847511b41d2SMark Murray rsource(name, &stb); 848511b41d2SMark Murray goto next; 849511b41d2SMark Murray } 850511b41d2SMark Murray /* FALLTHROUGH */ 851511b41d2SMark Murray default: 852511b41d2SMark Murray run_err("%s: not a regular file", name); 853511b41d2SMark Murray goto next; 854511b41d2SMark Murray } 855511b41d2SMark Murray if ((last = strrchr(name, '/')) == NULL) 856511b41d2SMark Murray last = name; 857511b41d2SMark Murray else 858511b41d2SMark Murray ++last; 859511b41d2SMark Murray curfile = last; 860511b41d2SMark Murray if (pflag) { 861e4a9863fSDag-Erling Smørgrav if (do_times(remout, verbose_mode, &stb) < 0) 862511b41d2SMark Murray goto next; 863511b41d2SMark Murray } 864511b41d2SMark Murray #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) 8651e8db6e2SBrian Feldman snprintf(buf, sizeof buf, "C%04o %lld %s\n", 8661e8db6e2SBrian Feldman (u_int) (stb.st_mode & FILEMODEMASK), 867b74df5b2SDag-Erling Smørgrav (long long)stb.st_size, last); 868076ad2f8SDag-Erling Smørgrav if (verbose_mode) 869076ad2f8SDag-Erling Smørgrav fmprintf(stderr, "Sending file modes: %s", buf); 870cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, buf, strlen(buf)); 871511b41d2SMark Murray if (response() < 0) 872511b41d2SMark Murray goto next; 873d4af9e69SDag-Erling Smørgrav if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) { 874b74df5b2SDag-Erling Smørgrav next: if (fd != -1) { 875b74df5b2SDag-Erling Smørgrav (void) close(fd); 876b74df5b2SDag-Erling Smørgrav fd = -1; 877b74df5b2SDag-Erling Smørgrav } 878511b41d2SMark Murray continue; 879511b41d2SMark Murray } 880e73e9afaSDag-Erling Smørgrav if (showprogress) 881e73e9afaSDag-Erling Smørgrav start_progress_meter(curfile, stb.st_size, &statbytes); 882d4af9e69SDag-Erling Smørgrav set_nonblock(remout); 883511b41d2SMark Murray for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { 884511b41d2SMark Murray amt = bp->cnt; 885d4af9e69SDag-Erling Smørgrav if (i + (off_t)amt > stb.st_size) 886511b41d2SMark Murray amt = stb.st_size - i; 887511b41d2SMark Murray if (!haderr) { 888a0ee8cc6SDag-Erling Smørgrav if ((nr = atomicio(read, fd, 889a0ee8cc6SDag-Erling Smørgrav bp->buf, amt)) != amt) { 890d4ecd108SDag-Erling Smørgrav haderr = errno; 891a0ee8cc6SDag-Erling Smørgrav memset(bp->buf + nr, 0, amt - nr); 892a0ee8cc6SDag-Erling Smørgrav } 893511b41d2SMark Murray } 894d4af9e69SDag-Erling Smørgrav /* Keep writing after error to retain sync */ 895d4af9e69SDag-Erling Smørgrav if (haderr) { 896cf2b5f3bSDag-Erling Smørgrav (void)atomicio(vwrite, remout, bp->buf, amt); 897a0ee8cc6SDag-Erling Smørgrav memset(bp->buf, 0, amt); 898d4af9e69SDag-Erling Smørgrav continue; 899d4af9e69SDag-Erling Smørgrav } 9004a421b63SDag-Erling Smørgrav if (atomicio6(vwrite, remout, bp->buf, amt, scpio, 901d4af9e69SDag-Erling Smørgrav &statbytes) != amt) 902d4ecd108SDag-Erling Smørgrav haderr = errno; 903511b41d2SMark Murray } 904d4af9e69SDag-Erling Smørgrav unset_nonblock(remout); 905511b41d2SMark Murray 906b74df5b2SDag-Erling Smørgrav if (fd != -1) { 907511b41d2SMark Murray if (close(fd) < 0 && !haderr) 908511b41d2SMark Murray haderr = errno; 909b74df5b2SDag-Erling Smørgrav fd = -1; 910b74df5b2SDag-Erling Smørgrav } 911511b41d2SMark Murray if (!haderr) 912cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 913511b41d2SMark Murray else 914511b41d2SMark Murray run_err("%s: %s", name, strerror(haderr)); 915511b41d2SMark Murray (void) response(); 916076ad2f8SDag-Erling Smørgrav if (showprogress) 917076ad2f8SDag-Erling Smørgrav stop_progress_meter(); 918511b41d2SMark Murray } 919511b41d2SMark Murray } 920511b41d2SMark Murray 921511b41d2SMark Murray void 922cf2b5f3bSDag-Erling Smørgrav rsource(char *name, struct stat *statp) 923511b41d2SMark Murray { 924511b41d2SMark Murray DIR *dirp; 925511b41d2SMark Murray struct dirent *dp; 926bc5531deSDag-Erling Smørgrav char *last, *vect[1], path[PATH_MAX]; 927511b41d2SMark Murray 928511b41d2SMark Murray if (!(dirp = opendir(name))) { 929511b41d2SMark Murray run_err("%s: %s", name, strerror(errno)); 930511b41d2SMark Murray return; 931511b41d2SMark Murray } 932511b41d2SMark Murray last = strrchr(name, '/'); 933acc1a9efSDag-Erling Smørgrav if (last == NULL) 934511b41d2SMark Murray last = name; 935511b41d2SMark Murray else 936511b41d2SMark Murray last++; 937511b41d2SMark Murray if (pflag) { 938e4a9863fSDag-Erling Smørgrav if (do_times(remout, verbose_mode, statp) < 0) { 939511b41d2SMark Murray closedir(dirp); 940511b41d2SMark Murray return; 941511b41d2SMark Murray } 942511b41d2SMark Murray } 9431e8db6e2SBrian Feldman (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", 9441e8db6e2SBrian Feldman (u_int) (statp->st_mode & FILEMODEMASK), 0, last); 945511b41d2SMark Murray if (verbose_mode) 946076ad2f8SDag-Erling Smørgrav fmprintf(stderr, "Entering directory: %s", path); 947cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, path, strlen(path)); 948511b41d2SMark Murray if (response() < 0) { 949511b41d2SMark Murray closedir(dirp); 950511b41d2SMark Murray return; 951511b41d2SMark Murray } 9521e8db6e2SBrian Feldman while ((dp = readdir(dirp)) != NULL) { 953511b41d2SMark Murray if (dp->d_ino == 0) 954511b41d2SMark Murray continue; 955511b41d2SMark Murray if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) 956511b41d2SMark Murray continue; 957511b41d2SMark Murray if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { 958511b41d2SMark Murray run_err("%s/%s: name too long", name, dp->d_name); 959511b41d2SMark Murray continue; 960511b41d2SMark Murray } 9611e8db6e2SBrian Feldman (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); 962511b41d2SMark Murray vect[0] = path; 963511b41d2SMark Murray source(1, vect); 964511b41d2SMark Murray } 965511b41d2SMark Murray (void) closedir(dirp); 966cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "E\n", 2); 967511b41d2SMark Murray (void) response(); 968511b41d2SMark Murray } 969511b41d2SMark Murray 9704f52dfbbSDag-Erling Smørgrav #define TYPE_OVERFLOW(type, val) \ 9714f52dfbbSDag-Erling Smørgrav ((sizeof(type) == 4 && (val) > INT32_MAX) || \ 9724f52dfbbSDag-Erling Smørgrav (sizeof(type) == 8 && (val) > INT64_MAX) || \ 9734f52dfbbSDag-Erling Smørgrav (sizeof(type) != 4 && sizeof(type) != 8)) 9744f52dfbbSDag-Erling Smørgrav 975511b41d2SMark Murray void 976afde5170SEd Maste sink(int argc, char **argv, const char *src) 977511b41d2SMark Murray { 978511b41d2SMark Murray static BUF buffer; 979511b41d2SMark Murray struct stat stb; 980511b41d2SMark Murray enum { 981511b41d2SMark Murray YES, NO, DISPLAYED 982511b41d2SMark Murray } wrerr; 983511b41d2SMark Murray BUF *bp; 984d4ecd108SDag-Erling Smørgrav off_t i; 985d4ecd108SDag-Erling Smørgrav size_t j, count; 986333ee039SDag-Erling Smørgrav int amt, exists, first, ofd; 987333ee039SDag-Erling Smørgrav mode_t mode, omode, mask; 988e73e9afaSDag-Erling Smørgrav off_t size, statbytes; 989e4a9863fSDag-Erling Smørgrav unsigned long long ull; 990b66f2d16SKris Kennaway int setimes, targisdir, wrerrno = 0; 991076ad2f8SDag-Erling Smørgrav char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048]; 992afde5170SEd Maste char *src_copy = NULL, *restrict_pattern = NULL; 9935b9b2fafSBrian Feldman struct timeval tv[2]; 994511b41d2SMark Murray 9951e8db6e2SBrian Feldman #define atime tv[0] 9961e8db6e2SBrian Feldman #define mtime tv[1] 997aa49c926SDag-Erling Smørgrav #define SCREWUP(str) { why = str; goto screwup; } 998511b41d2SMark Murray 9994f52dfbbSDag-Erling Smørgrav if (TYPE_OVERFLOW(time_t, 0) || TYPE_OVERFLOW(off_t, 0)) 10004f52dfbbSDag-Erling Smørgrav SCREWUP("Unexpected off_t/time_t size"); 10014f52dfbbSDag-Erling Smørgrav 1002511b41d2SMark Murray setimes = targisdir = 0; 1003511b41d2SMark Murray mask = umask(0); 1004511b41d2SMark Murray if (!pflag) 1005511b41d2SMark Murray (void) umask(mask); 1006511b41d2SMark Murray if (argc != 1) { 1007511b41d2SMark Murray run_err("ambiguous target"); 1008511b41d2SMark Murray exit(1); 1009511b41d2SMark Murray } 1010511b41d2SMark Murray targ = *argv; 1011511b41d2SMark Murray if (targetshouldbedirectory) 1012511b41d2SMark Murray verifydir(targ); 1013511b41d2SMark Murray 1014cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 1015511b41d2SMark Murray if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) 1016511b41d2SMark Murray targisdir = 1; 1017afde5170SEd Maste if (src != NULL && !iamrecursive && !Tflag) { 1018afde5170SEd Maste /* 1019afde5170SEd Maste * Prepare to try to restrict incoming filenames to match 1020afde5170SEd Maste * the requested destination file glob. 1021afde5170SEd Maste */ 1022afde5170SEd Maste if ((src_copy = strdup(src)) == NULL) 1023afde5170SEd Maste fatal("strdup failed"); 1024afde5170SEd Maste if ((restrict_pattern = strrchr(src_copy, '/')) != NULL) { 1025afde5170SEd Maste *restrict_pattern++ = '\0'; 1026afde5170SEd Maste } 1027afde5170SEd Maste } 1028511b41d2SMark Murray for (first = 1;; first = 0) { 1029511b41d2SMark Murray cp = buf; 1030d4ecd108SDag-Erling Smørgrav if (atomicio(read, remin, cp, 1) != 1) 1031511b41d2SMark Murray return; 1032511b41d2SMark Murray if (*cp++ == '\n') 1033511b41d2SMark Murray SCREWUP("unexpected <newline>"); 1034511b41d2SMark Murray do { 1035a04a10f8SKris Kennaway if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) 1036511b41d2SMark Murray SCREWUP("lost connection"); 1037511b41d2SMark Murray *cp++ = ch; 1038511b41d2SMark Murray } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); 1039511b41d2SMark Murray *cp = 0; 104021e764dfSDag-Erling Smørgrav if (verbose_mode) 1041076ad2f8SDag-Erling Smørgrav fmprintf(stderr, "Sink: %s", buf); 1042511b41d2SMark Murray 1043511b41d2SMark Murray if (buf[0] == '\01' || buf[0] == '\02') { 1044076ad2f8SDag-Erling Smørgrav if (iamremote == 0) { 1045076ad2f8SDag-Erling Smørgrav (void) snmprintf(visbuf, sizeof(visbuf), 1046076ad2f8SDag-Erling Smørgrav NULL, "%s", buf + 1); 1047cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, STDERR_FILENO, 1048076ad2f8SDag-Erling Smørgrav visbuf, strlen(visbuf)); 1049076ad2f8SDag-Erling Smørgrav } 1050511b41d2SMark Murray if (buf[0] == '\02') 1051511b41d2SMark Murray exit(1); 1052511b41d2SMark Murray ++errs; 1053511b41d2SMark Murray continue; 1054511b41d2SMark Murray } 1055511b41d2SMark Murray if (buf[0] == 'E') { 1056cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 1057511b41d2SMark Murray return; 1058511b41d2SMark Murray } 1059511b41d2SMark Murray if (ch == '\n') 1060511b41d2SMark Murray *--cp = 0; 1061511b41d2SMark Murray 1062511b41d2SMark Murray cp = buf; 1063511b41d2SMark Murray if (*cp == 'T') { 1064511b41d2SMark Murray setimes++; 1065511b41d2SMark Murray cp++; 1066e4a9863fSDag-Erling Smørgrav if (!isdigit((unsigned char)*cp)) 1067e4a9863fSDag-Erling Smørgrav SCREWUP("mtime.sec not present"); 1068e4a9863fSDag-Erling Smørgrav ull = strtoull(cp, &cp, 10); 10691e8db6e2SBrian Feldman if (!cp || *cp++ != ' ') 1070511b41d2SMark Murray SCREWUP("mtime.sec not delimited"); 10714f52dfbbSDag-Erling Smørgrav if (TYPE_OVERFLOW(time_t, ull)) 1072e4a9863fSDag-Erling Smørgrav setimes = 0; /* out of range */ 1073e4a9863fSDag-Erling Smørgrav mtime.tv_sec = ull; 10741e8db6e2SBrian Feldman mtime.tv_usec = strtol(cp, &cp, 10); 1075e4a9863fSDag-Erling Smørgrav if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 || 1076e4a9863fSDag-Erling Smørgrav mtime.tv_usec > 999999) 1077511b41d2SMark Murray SCREWUP("mtime.usec not delimited"); 1078e4a9863fSDag-Erling Smørgrav if (!isdigit((unsigned char)*cp)) 1079e4a9863fSDag-Erling Smørgrav SCREWUP("atime.sec not present"); 1080e4a9863fSDag-Erling Smørgrav ull = strtoull(cp, &cp, 10); 10811e8db6e2SBrian Feldman if (!cp || *cp++ != ' ') 1082511b41d2SMark Murray SCREWUP("atime.sec not delimited"); 10834f52dfbbSDag-Erling Smørgrav if (TYPE_OVERFLOW(time_t, ull)) 1084e4a9863fSDag-Erling Smørgrav setimes = 0; /* out of range */ 1085e4a9863fSDag-Erling Smørgrav atime.tv_sec = ull; 10861e8db6e2SBrian Feldman atime.tv_usec = strtol(cp, &cp, 10); 1087e4a9863fSDag-Erling Smørgrav if (!cp || *cp++ != '\0' || atime.tv_usec < 0 || 1088e4a9863fSDag-Erling Smørgrav atime.tv_usec > 999999) 1089511b41d2SMark Murray SCREWUP("atime.usec not delimited"); 1090cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 1091511b41d2SMark Murray continue; 1092511b41d2SMark Murray } 1093511b41d2SMark Murray if (*cp != 'C' && *cp != 'D') { 1094511b41d2SMark Murray /* 1095511b41d2SMark Murray * Check for the case "rcp remote:foo\* local:bar". 1096511b41d2SMark Murray * In this case, the line "No match." can be returned 1097511b41d2SMark Murray * by the shell before the rcp command on the remote is 1098511b41d2SMark Murray * executed so the ^Aerror_message convention isn't 1099511b41d2SMark Murray * followed. 1100511b41d2SMark Murray */ 1101511b41d2SMark Murray if (first) { 1102511b41d2SMark Murray run_err("%s", cp); 1103511b41d2SMark Murray exit(1); 1104511b41d2SMark Murray } 1105511b41d2SMark Murray SCREWUP("expected control record"); 1106511b41d2SMark Murray } 1107511b41d2SMark Murray mode = 0; 1108511b41d2SMark Murray for (++cp; cp < buf + 5; cp++) { 1109511b41d2SMark Murray if (*cp < '0' || *cp > '7') 1110511b41d2SMark Murray SCREWUP("bad mode"); 1111511b41d2SMark Murray mode = (mode << 3) | (*cp - '0'); 1112511b41d2SMark Murray } 1113190cef3dSDag-Erling Smørgrav if (!pflag) 1114190cef3dSDag-Erling Smørgrav mode &= ~mask; 1115511b41d2SMark Murray if (*cp++ != ' ') 1116511b41d2SMark Murray SCREWUP("mode not delimited"); 1117511b41d2SMark Murray 11184f52dfbbSDag-Erling Smørgrav if (!isdigit((unsigned char)*cp)) 11194f52dfbbSDag-Erling Smørgrav SCREWUP("size not present"); 11204f52dfbbSDag-Erling Smørgrav ull = strtoull(cp, &cp, 10); 11214f52dfbbSDag-Erling Smørgrav if (!cp || *cp++ != ' ') 1122511b41d2SMark Murray SCREWUP("size not delimited"); 11234f52dfbbSDag-Erling Smørgrav if (TYPE_OVERFLOW(off_t, ull)) 11244f52dfbbSDag-Erling Smørgrav SCREWUP("size out of range"); 11254f52dfbbSDag-Erling Smørgrav size = (off_t)ull; 11264f52dfbbSDag-Erling Smørgrav 1127d366f891SEd Maste if (*cp == '\0' || strchr(cp, '/') != NULL || 1128d366f891SEd Maste strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) { 112921e764dfSDag-Erling Smørgrav run_err("error: unexpected filename: %s", cp); 113021e764dfSDag-Erling Smørgrav exit(1); 113121e764dfSDag-Erling Smørgrav } 1132afde5170SEd Maste if (restrict_pattern != NULL && 1133afde5170SEd Maste fnmatch(restrict_pattern, cp, 0) != 0) 1134afde5170SEd Maste SCREWUP("filename does not match request"); 1135511b41d2SMark Murray if (targisdir) { 1136511b41d2SMark Murray static char *namebuf; 1137d4ecd108SDag-Erling Smørgrav static size_t cursize; 1138511b41d2SMark Murray size_t need; 1139511b41d2SMark Murray 1140511b41d2SMark Murray need = strlen(targ) + strlen(cp) + 250; 11411e8db6e2SBrian Feldman if (need > cursize) { 1142e4a9863fSDag-Erling Smørgrav free(namebuf); 1143511b41d2SMark Murray namebuf = xmalloc(need); 11441e8db6e2SBrian Feldman cursize = need; 11451e8db6e2SBrian Feldman } 11461e8db6e2SBrian Feldman (void) snprintf(namebuf, need, "%s%s%s", targ, 1147545d5ecaSDag-Erling Smørgrav strcmp(targ, "/") ? "/" : "", cp); 1148511b41d2SMark Murray np = namebuf; 1149511b41d2SMark Murray } else 1150511b41d2SMark Murray np = targ; 1151511b41d2SMark Murray curfile = cp; 1152511b41d2SMark Murray exists = stat(np, &stb) == 0; 1153511b41d2SMark Murray if (buf[0] == 'D') { 1154511b41d2SMark Murray int mod_flag = pflag; 115521e764dfSDag-Erling Smørgrav if (!iamrecursive) 115621e764dfSDag-Erling Smørgrav SCREWUP("received directory without -r"); 1157511b41d2SMark Murray if (exists) { 1158511b41d2SMark Murray if (!S_ISDIR(stb.st_mode)) { 1159511b41d2SMark Murray errno = ENOTDIR; 1160511b41d2SMark Murray goto bad; 1161511b41d2SMark Murray } 1162511b41d2SMark Murray if (pflag) 1163511b41d2SMark Murray (void) chmod(np, mode); 1164511b41d2SMark Murray } else { 1165511b41d2SMark Murray /* Handle copying from a read-only 1166511b41d2SMark Murray directory */ 1167511b41d2SMark Murray mod_flag = 1; 1168511b41d2SMark Murray if (mkdir(np, mode | S_IRWXU) < 0) 1169511b41d2SMark Murray goto bad; 1170511b41d2SMark Murray } 11711e8db6e2SBrian Feldman vect[0] = xstrdup(np); 1172afde5170SEd Maste sink(1, vect, src); 1173511b41d2SMark Murray if (setimes) { 1174511b41d2SMark Murray setimes = 0; 11751e8db6e2SBrian Feldman if (utimes(vect[0], tv) < 0) 1176511b41d2SMark Murray run_err("%s: set times: %s", 11771e8db6e2SBrian Feldman vect[0], strerror(errno)); 1178511b41d2SMark Murray } 1179511b41d2SMark Murray if (mod_flag) 11801e8db6e2SBrian Feldman (void) chmod(vect[0], mode); 1181e4a9863fSDag-Erling Smørgrav free(vect[0]); 1182511b41d2SMark Murray continue; 1183511b41d2SMark Murray } 1184511b41d2SMark Murray omode = mode; 1185e4a9863fSDag-Erling Smørgrav mode |= S_IWUSR; 1186ae1f160dSDag-Erling Smørgrav if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { 1187511b41d2SMark Murray bad: run_err("%s: %s", np, strerror(errno)); 1188511b41d2SMark Murray continue; 1189511b41d2SMark Murray } 1190cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 1191d4af9e69SDag-Erling Smørgrav if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) { 1192511b41d2SMark Murray (void) close(ofd); 1193511b41d2SMark Murray continue; 1194511b41d2SMark Murray } 1195511b41d2SMark Murray cp = bp->buf; 1196511b41d2SMark Murray wrerr = NO; 1197511b41d2SMark Murray 1198511b41d2SMark Murray statbytes = 0; 1199e73e9afaSDag-Erling Smørgrav if (showprogress) 1200e73e9afaSDag-Erling Smørgrav start_progress_meter(curfile, size, &statbytes); 1201d4af9e69SDag-Erling Smørgrav set_nonblock(remin); 1202d4af9e69SDag-Erling Smørgrav for (count = i = 0; i < size; i += bp->cnt) { 1203d4af9e69SDag-Erling Smørgrav amt = bp->cnt; 1204511b41d2SMark Murray if (i + amt > size) 1205511b41d2SMark Murray amt = size - i; 1206511b41d2SMark Murray count += amt; 1207511b41d2SMark Murray do { 12084a421b63SDag-Erling Smørgrav j = atomicio6(read, remin, cp, amt, 12094a421b63SDag-Erling Smørgrav scpio, &statbytes); 1210d4ecd108SDag-Erling Smørgrav if (j == 0) { 1211d4af9e69SDag-Erling Smørgrav run_err("%s", j != EPIPE ? 1212d4af9e69SDag-Erling Smørgrav strerror(errno) : 1213511b41d2SMark Murray "dropped connection"); 1214511b41d2SMark Murray exit(1); 1215511b41d2SMark Murray } 1216511b41d2SMark Murray amt -= j; 1217511b41d2SMark Murray cp += j; 1218511b41d2SMark Murray } while (amt > 0); 1219e73e9afaSDag-Erling Smørgrav 1220511b41d2SMark Murray if (count == bp->cnt) { 1221511b41d2SMark Murray /* Keep reading so we stay sync'd up. */ 1222511b41d2SMark Murray if (wrerr == NO) { 1223d4ecd108SDag-Erling Smørgrav if (atomicio(vwrite, ofd, bp->buf, 1224d4ecd108SDag-Erling Smørgrav count) != count) { 1225511b41d2SMark Murray wrerr = YES; 1226d4ecd108SDag-Erling Smørgrav wrerrno = errno; 1227511b41d2SMark Murray } 1228511b41d2SMark Murray } 1229511b41d2SMark Murray count = 0; 1230511b41d2SMark Murray cp = bp->buf; 1231511b41d2SMark Murray } 1232511b41d2SMark Murray } 1233d4af9e69SDag-Erling Smørgrav unset_nonblock(remin); 1234511b41d2SMark Murray if (count != 0 && wrerr == NO && 1235d4ecd108SDag-Erling Smørgrav atomicio(vwrite, ofd, bp->buf, count) != count) { 1236511b41d2SMark Murray wrerr = YES; 1237d4ecd108SDag-Erling Smørgrav wrerrno = errno; 1238511b41d2SMark Murray } 1239d4af9e69SDag-Erling Smørgrav if (wrerr == NO && (!exists || S_ISREG(stb.st_mode)) && 1240d4af9e69SDag-Erling Smørgrav ftruncate(ofd, size) != 0) { 1241511b41d2SMark Murray run_err("%s: truncate: %s", np, strerror(errno)); 1242511b41d2SMark Murray wrerr = DISPLAYED; 1243511b41d2SMark Murray } 1244511b41d2SMark Murray if (pflag) { 1245511b41d2SMark Murray if (exists || omode != mode) 124683d2307dSDag-Erling Smørgrav #ifdef HAVE_FCHMOD 124721e764dfSDag-Erling Smørgrav if (fchmod(ofd, omode)) { 124883d2307dSDag-Erling Smørgrav #else /* HAVE_FCHMOD */ 124921e764dfSDag-Erling Smørgrav if (chmod(np, omode)) { 125083d2307dSDag-Erling Smørgrav #endif /* HAVE_FCHMOD */ 1251511b41d2SMark Murray run_err("%s: set mode: %s", 1252511b41d2SMark Murray np, strerror(errno)); 125321e764dfSDag-Erling Smørgrav wrerr = DISPLAYED; 125421e764dfSDag-Erling Smørgrav } 1255511b41d2SMark Murray } else { 1256511b41d2SMark Murray if (!exists && omode != mode) 125783d2307dSDag-Erling Smørgrav #ifdef HAVE_FCHMOD 125821e764dfSDag-Erling Smørgrav if (fchmod(ofd, omode & ~mask)) { 125983d2307dSDag-Erling Smørgrav #else /* HAVE_FCHMOD */ 126021e764dfSDag-Erling Smørgrav if (chmod(np, omode & ~mask)) { 126183d2307dSDag-Erling Smørgrav #endif /* HAVE_FCHMOD */ 1262511b41d2SMark Murray run_err("%s: set mode: %s", 1263511b41d2SMark Murray np, strerror(errno)); 126421e764dfSDag-Erling Smørgrav wrerr = DISPLAYED; 126521e764dfSDag-Erling Smørgrav } 1266511b41d2SMark Murray } 1267b66f2d16SKris Kennaway if (close(ofd) == -1) { 1268b66f2d16SKris Kennaway wrerr = YES; 1269b66f2d16SKris Kennaway wrerrno = errno; 1270b66f2d16SKris Kennaway } 1271511b41d2SMark Murray (void) response(); 1272076ad2f8SDag-Erling Smørgrav if (showprogress) 1273076ad2f8SDag-Erling Smørgrav stop_progress_meter(); 1274511b41d2SMark Murray if (setimes && wrerr == NO) { 1275511b41d2SMark Murray setimes = 0; 12765b9b2fafSBrian Feldman if (utimes(np, tv) < 0) { 1277511b41d2SMark Murray run_err("%s: set times: %s", 1278511b41d2SMark Murray np, strerror(errno)); 1279511b41d2SMark Murray wrerr = DISPLAYED; 1280511b41d2SMark Murray } 1281511b41d2SMark Murray } 1282511b41d2SMark Murray switch (wrerr) { 1283511b41d2SMark Murray case YES: 1284511b41d2SMark Murray run_err("%s: %s", np, strerror(wrerrno)); 1285511b41d2SMark Murray break; 1286511b41d2SMark Murray case NO: 1287cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 1288511b41d2SMark Murray break; 1289511b41d2SMark Murray case DISPLAYED: 1290511b41d2SMark Murray break; 1291511b41d2SMark Murray } 1292511b41d2SMark Murray } 1293511b41d2SMark Murray screwup: 1294511b41d2SMark Murray run_err("protocol error: %s", why); 1295511b41d2SMark Murray exit(1); 1296511b41d2SMark Murray } 1297511b41d2SMark Murray 1298511b41d2SMark Murray int 1299ae1f160dSDag-Erling Smørgrav response(void) 1300511b41d2SMark Murray { 1301076ad2f8SDag-Erling Smørgrav char ch, *cp, resp, rbuf[2048], visbuf[2048]; 1302511b41d2SMark Murray 1303a04a10f8SKris Kennaway if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) 1304511b41d2SMark Murray lostconn(0); 1305511b41d2SMark Murray 1306511b41d2SMark Murray cp = rbuf; 1307511b41d2SMark Murray switch (resp) { 1308511b41d2SMark Murray case 0: /* ok */ 1309511b41d2SMark Murray return (0); 1310511b41d2SMark Murray default: 1311511b41d2SMark Murray *cp++ = resp; 1312511b41d2SMark Murray /* FALLTHROUGH */ 1313511b41d2SMark Murray case 1: /* error, followed by error msg */ 1314511b41d2SMark Murray case 2: /* fatal error, "" */ 1315511b41d2SMark Murray do { 1316a04a10f8SKris Kennaway if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) 1317511b41d2SMark Murray lostconn(0); 1318511b41d2SMark Murray *cp++ = ch; 1319511b41d2SMark Murray } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); 1320511b41d2SMark Murray 1321076ad2f8SDag-Erling Smørgrav if (!iamremote) { 1322076ad2f8SDag-Erling Smørgrav cp[-1] = '\0'; 1323076ad2f8SDag-Erling Smørgrav (void) snmprintf(visbuf, sizeof(visbuf), 1324076ad2f8SDag-Erling Smørgrav NULL, "%s\n", rbuf); 1325076ad2f8SDag-Erling Smørgrav (void) atomicio(vwrite, STDERR_FILENO, 1326076ad2f8SDag-Erling Smørgrav visbuf, strlen(visbuf)); 1327076ad2f8SDag-Erling Smørgrav } 1328511b41d2SMark Murray ++errs; 1329511b41d2SMark Murray if (resp == 1) 1330511b41d2SMark Murray return (-1); 1331511b41d2SMark Murray exit(1); 1332511b41d2SMark Murray } 1333511b41d2SMark Murray /* NOTREACHED */ 1334511b41d2SMark Murray } 1335511b41d2SMark Murray 1336511b41d2SMark Murray void 1337ae1f160dSDag-Erling Smørgrav usage(void) 1338511b41d2SMark Murray { 1339ae1f160dSDag-Erling Smørgrav (void) fprintf(stderr, 1340afde5170SEd Maste "usage: scp [-346BCpqrTv] [-c cipher] [-F ssh_config] [-i identity_file]\n" 134147dd1d1bSDag-Erling Smørgrav " [-l limit] [-o ssh_option] [-P port] [-S program] source ... target\n"); 1342511b41d2SMark Murray exit(1); 1343511b41d2SMark Murray } 1344511b41d2SMark Murray 1345511b41d2SMark Murray void 1346511b41d2SMark Murray run_err(const char *fmt,...) 1347511b41d2SMark Murray { 1348511b41d2SMark Murray static FILE *fp; 1349511b41d2SMark Murray va_list ap; 1350511b41d2SMark Murray 1351511b41d2SMark Murray ++errs; 1352333ee039SDag-Erling Smørgrav if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { 1353511b41d2SMark Murray (void) fprintf(fp, "%c", 0x01); 1354511b41d2SMark Murray (void) fprintf(fp, "scp: "); 1355ae1f160dSDag-Erling Smørgrav va_start(ap, fmt); 1356511b41d2SMark Murray (void) vfprintf(fp, fmt, ap); 1357ae1f160dSDag-Erling Smørgrav va_end(ap); 1358511b41d2SMark Murray (void) fprintf(fp, "\n"); 1359511b41d2SMark Murray (void) fflush(fp); 1360333ee039SDag-Erling Smørgrav } 1361511b41d2SMark Murray 1362511b41d2SMark Murray if (!iamremote) { 1363ae1f160dSDag-Erling Smørgrav va_start(ap, fmt); 1364076ad2f8SDag-Erling Smørgrav vfmprintf(stderr, fmt, ap); 1365ae1f160dSDag-Erling Smørgrav va_end(ap); 1366511b41d2SMark Murray fprintf(stderr, "\n"); 1367511b41d2SMark Murray } 1368511b41d2SMark Murray } 1369511b41d2SMark Murray 1370511b41d2SMark Murray void 1371cf2b5f3bSDag-Erling Smørgrav verifydir(char *cp) 1372511b41d2SMark Murray { 1373511b41d2SMark Murray struct stat stb; 1374511b41d2SMark Murray 1375511b41d2SMark Murray if (!stat(cp, &stb)) { 1376511b41d2SMark Murray if (S_ISDIR(stb.st_mode)) 1377511b41d2SMark Murray return; 1378511b41d2SMark Murray errno = ENOTDIR; 1379511b41d2SMark Murray } 1380511b41d2SMark Murray run_err("%s: %s", cp, strerror(errno)); 1381d4ecd108SDag-Erling Smørgrav killchild(0); 1382511b41d2SMark Murray } 1383511b41d2SMark Murray 1384511b41d2SMark Murray int 1385cf2b5f3bSDag-Erling Smørgrav okname(char *cp0) 1386511b41d2SMark Murray { 1387511b41d2SMark Murray int c; 1388511b41d2SMark Murray char *cp; 1389511b41d2SMark Murray 1390511b41d2SMark Murray cp = cp0; 1391511b41d2SMark Murray do { 1392ae1f160dSDag-Erling Smørgrav c = (int)*cp; 1393511b41d2SMark Murray if (c & 0200) 1394511b41d2SMark Murray goto bad; 1395f7167e0eSDag-Erling Smørgrav if (!isalpha(c) && !isdigit((unsigned char)c)) { 1396e73e9afaSDag-Erling Smørgrav switch (c) { 1397e73e9afaSDag-Erling Smørgrav case '\'': 1398e73e9afaSDag-Erling Smørgrav case '"': 1399e73e9afaSDag-Erling Smørgrav case '`': 1400e73e9afaSDag-Erling Smørgrav case ' ': 1401e73e9afaSDag-Erling Smørgrav case '#': 1402511b41d2SMark Murray goto bad; 1403e73e9afaSDag-Erling Smørgrav default: 1404e73e9afaSDag-Erling Smørgrav break; 1405e73e9afaSDag-Erling Smørgrav } 1406e73e9afaSDag-Erling Smørgrav } 1407511b41d2SMark Murray } while (*++cp); 1408511b41d2SMark Murray return (1); 1409511b41d2SMark Murray 1410076ad2f8SDag-Erling Smørgrav bad: fmprintf(stderr, "%s: invalid user name\n", cp0); 1411511b41d2SMark Murray return (0); 1412511b41d2SMark Murray } 1413511b41d2SMark Murray 1414511b41d2SMark Murray BUF * 1415cf2b5f3bSDag-Erling Smørgrav allocbuf(BUF *bp, int fd, int blksize) 1416511b41d2SMark Murray { 1417511b41d2SMark Murray size_t size; 141883d2307dSDag-Erling Smørgrav #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE 1419511b41d2SMark Murray struct stat stb; 1420511b41d2SMark Murray 1421511b41d2SMark Murray if (fstat(fd, &stb) < 0) { 1422511b41d2SMark Murray run_err("fstat: %s", strerror(errno)); 1423511b41d2SMark Murray return (0); 1424511b41d2SMark Murray } 1425ca86bcf2SDag-Erling Smørgrav size = ROUNDUP(stb.st_blksize, blksize); 1426e73e9afaSDag-Erling Smørgrav if (size == 0) 1427e73e9afaSDag-Erling Smørgrav size = blksize; 142883d2307dSDag-Erling Smørgrav #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ 142983d2307dSDag-Erling Smørgrav size = blksize; 143083d2307dSDag-Erling Smørgrav #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ 1431511b41d2SMark Murray if (bp->cnt >= size) 1432511b41d2SMark Murray return (bp); 14334f52dfbbSDag-Erling Smørgrav bp->buf = xrecallocarray(bp->buf, bp->cnt, size, 1); 1434511b41d2SMark Murray bp->cnt = size; 1435511b41d2SMark Murray return (bp); 1436511b41d2SMark Murray } 1437511b41d2SMark Murray 1438511b41d2SMark Murray void 1439cf2b5f3bSDag-Erling Smørgrav lostconn(int signo) 1440511b41d2SMark Murray { 1441511b41d2SMark Murray if (!iamremote) 1442e4a9863fSDag-Erling Smørgrav (void)write(STDERR_FILENO, "lost connection\n", 16); 1443ae1f160dSDag-Erling Smørgrav if (signo) 1444ae1f160dSDag-Erling Smørgrav _exit(1); 1445ae1f160dSDag-Erling Smørgrav else 1446511b41d2SMark Murray exit(1); 1447511b41d2SMark Murray } 1448