147dd1d1bSDag-Erling Smørgrav /* $OpenBSD: scp.c,v 1.195 2018/02/10 06:15:12 djm 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> 97bc5531deSDag-Erling Smørgrav #include <limits.h> 98076ad2f8SDag-Erling Smørgrav #include <locale.h> 99333ee039SDag-Erling Smørgrav #include <pwd.h> 100333ee039SDag-Erling Smørgrav #include <signal.h> 101333ee039SDag-Erling Smørgrav #include <stdarg.h> 1024f52dfbbSDag-Erling Smørgrav #ifdef HAVE_STDINT_H 1034f52dfbbSDag-Erling Smørgrav #include <stdint.h> 1044f52dfbbSDag-Erling Smørgrav #endif 105333ee039SDag-Erling Smørgrav #include <stdio.h> 106333ee039SDag-Erling Smørgrav #include <stdlib.h> 107333ee039SDag-Erling Smørgrav #include <string.h> 108333ee039SDag-Erling Smørgrav #include <time.h> 109333ee039SDag-Erling Smørgrav #include <unistd.h> 1106888a9beSDag-Erling Smørgrav #if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) && !defined(BROKEN_STRNVIS) 111d4af9e69SDag-Erling Smørgrav #include <vis.h> 112d4af9e69SDag-Erling Smørgrav #endif 113511b41d2SMark Murray 114511b41d2SMark Murray #include "xmalloc.h" 11547dd1d1bSDag-Erling Smørgrav #include "ssh.h" 1161e8db6e2SBrian Feldman #include "atomicio.h" 1171e8db6e2SBrian Feldman #include "pathnames.h" 1181e8db6e2SBrian Feldman #include "log.h" 119ae1f160dSDag-Erling Smørgrav #include "misc.h" 120e73e9afaSDag-Erling Smørgrav #include "progressmeter.h" 121076ad2f8SDag-Erling Smørgrav #include "utf8.h" 122511b41d2SMark Murray 12383d2307dSDag-Erling Smørgrav extern char *__progname; 12483d2307dSDag-Erling Smørgrav 125d4af9e69SDag-Erling Smørgrav #define COPY_BUFLEN 16384 126d4af9e69SDag-Erling Smørgrav 12747dd1d1bSDag-Erling Smørgrav int do_cmd(char *host, char *remuser, int port, char *cmd, int *fdin, int *fdout); 12847dd1d1bSDag-Erling Smørgrav int do_cmd2(char *host, char *remuser, int port, char *cmd, int fdin, int fdout); 129511b41d2SMark Murray 130ae1f160dSDag-Erling Smørgrav /* Struct for addargs */ 131ae1f160dSDag-Erling Smørgrav arglist args; 1324a421b63SDag-Erling Smørgrav arglist remote_remote_args; 1335b9b2fafSBrian Feldman 134e73e9afaSDag-Erling Smørgrav /* Bandwidth limit */ 1354a421b63SDag-Erling Smørgrav long long limit_kbps = 0; 1364a421b63SDag-Erling Smørgrav struct bwlimit bwlimit; 137511b41d2SMark Murray 138511b41d2SMark Murray /* Name of current file being transferred. */ 139511b41d2SMark Murray char *curfile; 140511b41d2SMark Murray 141511b41d2SMark Murray /* This is set to non-zero to enable verbose mode. */ 142511b41d2SMark Murray int verbose_mode = 0; 143511b41d2SMark Murray 144511b41d2SMark Murray /* This is set to zero if the progressmeter is not desired. */ 145511b41d2SMark Murray int showprogress = 1; 146511b41d2SMark Murray 1474a421b63SDag-Erling Smørgrav /* 1484a421b63SDag-Erling Smørgrav * This is set to non-zero if remote-remote copy should be piped 1494a421b63SDag-Erling Smørgrav * through this process. 1504a421b63SDag-Erling Smørgrav */ 1514a421b63SDag-Erling Smørgrav int throughlocal = 0; 1524a421b63SDag-Erling Smørgrav 15347dd1d1bSDag-Erling Smørgrav /* Non-standard port to use for the ssh connection or -1. */ 15447dd1d1bSDag-Erling Smørgrav int sshport = -1; 15547dd1d1bSDag-Erling Smørgrav 156b66f2d16SKris Kennaway /* This is the program to execute for the secured connection. ("ssh" or -S) */ 1571e8db6e2SBrian Feldman char *ssh_program = _PATH_SSH_PROGRAM; 158b66f2d16SKris Kennaway 159e73e9afaSDag-Erling Smørgrav /* This is used to store the pid of ssh_program */ 160cf2b5f3bSDag-Erling Smørgrav pid_t do_cmd_pid = -1; 161cf2b5f3bSDag-Erling Smørgrav 162cf2b5f3bSDag-Erling Smørgrav static void 163cf2b5f3bSDag-Erling Smørgrav killchild(int signo) 164cf2b5f3bSDag-Erling Smørgrav { 165aa49c926SDag-Erling Smørgrav if (do_cmd_pid > 1) { 166d4ecd108SDag-Erling Smørgrav kill(do_cmd_pid, signo ? signo : SIGTERM); 167aa49c926SDag-Erling Smørgrav waitpid(do_cmd_pid, NULL, 0); 168aa49c926SDag-Erling Smørgrav } 169cf2b5f3bSDag-Erling Smørgrav 170d4ecd108SDag-Erling Smørgrav if (signo) 171cf2b5f3bSDag-Erling Smørgrav _exit(1); 172d4ecd108SDag-Erling Smørgrav exit(1); 173cf2b5f3bSDag-Erling Smørgrav } 174e73e9afaSDag-Erling Smørgrav 175e2f6069cSDag-Erling Smørgrav static void 176e2f6069cSDag-Erling Smørgrav suspchild(int signo) 177e2f6069cSDag-Erling Smørgrav { 178e2f6069cSDag-Erling Smørgrav int status; 179e2f6069cSDag-Erling Smørgrav 180e2f6069cSDag-Erling Smørgrav if (do_cmd_pid > 1) { 181e2f6069cSDag-Erling Smørgrav kill(do_cmd_pid, signo); 182e2f6069cSDag-Erling Smørgrav while (waitpid(do_cmd_pid, &status, WUNTRACED) == -1 && 183e2f6069cSDag-Erling Smørgrav errno == EINTR) 184e2f6069cSDag-Erling Smørgrav ; 185e2f6069cSDag-Erling Smørgrav kill(getpid(), SIGSTOP); 186e2f6069cSDag-Erling Smørgrav } 187e2f6069cSDag-Erling Smørgrav } 188e2f6069cSDag-Erling Smørgrav 189b74df5b2SDag-Erling Smørgrav static int 190b74df5b2SDag-Erling Smørgrav do_local_cmd(arglist *a) 191b74df5b2SDag-Erling Smørgrav { 192b74df5b2SDag-Erling Smørgrav u_int i; 193b74df5b2SDag-Erling Smørgrav int status; 194b74df5b2SDag-Erling Smørgrav pid_t pid; 195b74df5b2SDag-Erling Smørgrav 196b74df5b2SDag-Erling Smørgrav if (a->num == 0) 197b74df5b2SDag-Erling Smørgrav fatal("do_local_cmd: no arguments"); 198b74df5b2SDag-Erling Smørgrav 199b74df5b2SDag-Erling Smørgrav if (verbose_mode) { 200b74df5b2SDag-Erling Smørgrav fprintf(stderr, "Executing:"); 201b74df5b2SDag-Erling Smørgrav for (i = 0; i < a->num; i++) 202076ad2f8SDag-Erling Smørgrav fmprintf(stderr, " %s", a->list[i]); 203b74df5b2SDag-Erling Smørgrav fprintf(stderr, "\n"); 204b74df5b2SDag-Erling Smørgrav } 205b74df5b2SDag-Erling Smørgrav if ((pid = fork()) == -1) 206b74df5b2SDag-Erling Smørgrav fatal("do_local_cmd: fork: %s", strerror(errno)); 207b74df5b2SDag-Erling Smørgrav 208b74df5b2SDag-Erling Smørgrav if (pid == 0) { 209b74df5b2SDag-Erling Smørgrav execvp(a->list[0], a->list); 210b74df5b2SDag-Erling Smørgrav perror(a->list[0]); 211b74df5b2SDag-Erling Smørgrav exit(1); 212b74df5b2SDag-Erling Smørgrav } 213b74df5b2SDag-Erling Smørgrav 214b74df5b2SDag-Erling Smørgrav do_cmd_pid = pid; 215b74df5b2SDag-Erling Smørgrav signal(SIGTERM, killchild); 216b74df5b2SDag-Erling Smørgrav signal(SIGINT, killchild); 217b74df5b2SDag-Erling Smørgrav signal(SIGHUP, killchild); 218b74df5b2SDag-Erling Smørgrav 219b74df5b2SDag-Erling Smørgrav while (waitpid(pid, &status, 0) == -1) 220b74df5b2SDag-Erling Smørgrav if (errno != EINTR) 221b74df5b2SDag-Erling Smørgrav fatal("do_local_cmd: waitpid: %s", strerror(errno)); 222b74df5b2SDag-Erling Smørgrav 223b74df5b2SDag-Erling Smørgrav do_cmd_pid = -1; 224b74df5b2SDag-Erling Smørgrav 225b74df5b2SDag-Erling Smørgrav if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) 226b74df5b2SDag-Erling Smørgrav return (-1); 227b74df5b2SDag-Erling Smørgrav 228b74df5b2SDag-Erling Smørgrav return (0); 229b74df5b2SDag-Erling Smørgrav } 230b74df5b2SDag-Erling Smørgrav 231511b41d2SMark Murray /* 232511b41d2SMark Murray * This function executes the given command as the specified user on the 233511b41d2SMark Murray * given host. This returns < 0 if execution fails, and >= 0 otherwise. This 234511b41d2SMark Murray * assigns the input and output file descriptors on success. 235511b41d2SMark Murray */ 236511b41d2SMark Murray 237511b41d2SMark Murray int 23847dd1d1bSDag-Erling Smørgrav do_cmd(char *host, char *remuser, int port, char *cmd, int *fdin, int *fdout) 239511b41d2SMark Murray { 240511b41d2SMark Murray int pin[2], pout[2], reserved[2]; 241511b41d2SMark Murray 242511b41d2SMark Murray if (verbose_mode) 243076ad2f8SDag-Erling Smørgrav fmprintf(stderr, 244ae1f160dSDag-Erling Smørgrav "Executing: program %s host %s, user %s, command %s\n", 245ae1f160dSDag-Erling Smørgrav ssh_program, host, 246ae1f160dSDag-Erling Smørgrav remuser ? remuser : "(unspecified)", cmd); 247511b41d2SMark Murray 24847dd1d1bSDag-Erling Smørgrav if (port == -1) 24947dd1d1bSDag-Erling Smørgrav port = sshport; 25047dd1d1bSDag-Erling Smørgrav 251511b41d2SMark Murray /* 252511b41d2SMark Murray * Reserve two descriptors so that the real pipes won't get 253511b41d2SMark Murray * descriptors 0 and 1 because that will screw up dup2 below. 254511b41d2SMark Murray */ 255333ee039SDag-Erling Smørgrav if (pipe(reserved) < 0) 256333ee039SDag-Erling Smørgrav fatal("pipe: %s", strerror(errno)); 257511b41d2SMark Murray 258511b41d2SMark Murray /* Create a socket pair for communicating with ssh. */ 259511b41d2SMark Murray if (pipe(pin) < 0) 260511b41d2SMark Murray fatal("pipe: %s", strerror(errno)); 261511b41d2SMark Murray if (pipe(pout) < 0) 262511b41d2SMark Murray fatal("pipe: %s", strerror(errno)); 263511b41d2SMark Murray 264511b41d2SMark Murray /* Free the reserved descriptors. */ 265511b41d2SMark Murray close(reserved[0]); 266511b41d2SMark Murray close(reserved[1]); 267511b41d2SMark Murray 268e2f6069cSDag-Erling Smørgrav signal(SIGTSTP, suspchild); 269e2f6069cSDag-Erling Smørgrav signal(SIGTTIN, suspchild); 270e2f6069cSDag-Erling Smørgrav signal(SIGTTOU, suspchild); 271e2f6069cSDag-Erling Smørgrav 272cf2b5f3bSDag-Erling Smørgrav /* Fork a child to execute the command on the remote host using ssh. */ 273e73e9afaSDag-Erling Smørgrav do_cmd_pid = fork(); 274e73e9afaSDag-Erling Smørgrav if (do_cmd_pid == 0) { 275511b41d2SMark Murray /* Child. */ 276511b41d2SMark Murray close(pin[1]); 277511b41d2SMark Murray close(pout[0]); 278511b41d2SMark Murray dup2(pin[0], 0); 279511b41d2SMark Murray dup2(pout[1], 1); 280511b41d2SMark Murray close(pin[0]); 281511b41d2SMark Murray close(pout[1]); 282511b41d2SMark Murray 283b74df5b2SDag-Erling Smørgrav replacearg(&args, 0, "%s", ssh_program); 28447dd1d1bSDag-Erling Smørgrav if (port != -1) { 28547dd1d1bSDag-Erling Smørgrav addargs(&args, "-p"); 28647dd1d1bSDag-Erling Smørgrav addargs(&args, "%d", port); 28747dd1d1bSDag-Erling Smørgrav } 288b15c8340SDag-Erling Smørgrav if (remuser != NULL) { 289b15c8340SDag-Erling Smørgrav addargs(&args, "-l"); 290b15c8340SDag-Erling Smørgrav addargs(&args, "%s", remuser); 291b15c8340SDag-Erling Smørgrav } 292b15c8340SDag-Erling Smørgrav addargs(&args, "--"); 293ae1f160dSDag-Erling Smørgrav addargs(&args, "%s", host); 294ae1f160dSDag-Erling Smørgrav addargs(&args, "%s", cmd); 295511b41d2SMark Murray 2965b9b2fafSBrian Feldman execvp(ssh_program, args.list); 297b66f2d16SKris Kennaway perror(ssh_program); 298511b41d2SMark Murray exit(1); 299e73e9afaSDag-Erling Smørgrav } else if (do_cmd_pid == -1) { 300e73e9afaSDag-Erling Smørgrav fatal("fork: %s", strerror(errno)); 301511b41d2SMark Murray } 302511b41d2SMark Murray /* Parent. Close the other side, and return the local side. */ 303511b41d2SMark Murray close(pin[0]); 304511b41d2SMark Murray *fdout = pin[1]; 305511b41d2SMark Murray close(pout[1]); 306511b41d2SMark Murray *fdin = pout[0]; 307cf2b5f3bSDag-Erling Smørgrav signal(SIGTERM, killchild); 308cf2b5f3bSDag-Erling Smørgrav signal(SIGINT, killchild); 309cf2b5f3bSDag-Erling Smørgrav signal(SIGHUP, killchild); 310511b41d2SMark Murray return 0; 311511b41d2SMark Murray } 312511b41d2SMark Murray 3134a421b63SDag-Erling Smørgrav /* 3144a421b63SDag-Erling Smørgrav * This functions executes a command simlar to do_cmd(), but expects the 3154a421b63SDag-Erling Smørgrav * input and output descriptors to be setup by a previous call to do_cmd(). 3164a421b63SDag-Erling Smørgrav * This way the input and output of two commands can be connected. 3174a421b63SDag-Erling Smørgrav */ 3184a421b63SDag-Erling Smørgrav int 31947dd1d1bSDag-Erling Smørgrav do_cmd2(char *host, char *remuser, int port, char *cmd, int fdin, int fdout) 3204a421b63SDag-Erling Smørgrav { 3214a421b63SDag-Erling Smørgrav pid_t pid; 3224a421b63SDag-Erling Smørgrav int status; 3234a421b63SDag-Erling Smørgrav 3244a421b63SDag-Erling Smørgrav if (verbose_mode) 325076ad2f8SDag-Erling Smørgrav fmprintf(stderr, 3264a421b63SDag-Erling Smørgrav "Executing: 2nd program %s host %s, user %s, command %s\n", 3274a421b63SDag-Erling Smørgrav ssh_program, host, 3284a421b63SDag-Erling Smørgrav remuser ? remuser : "(unspecified)", cmd); 3294a421b63SDag-Erling Smørgrav 33047dd1d1bSDag-Erling Smørgrav if (port == -1) 33147dd1d1bSDag-Erling Smørgrav port = sshport; 33247dd1d1bSDag-Erling Smørgrav 3334a421b63SDag-Erling Smørgrav /* Fork a child to execute the command on the remote host using ssh. */ 3344a421b63SDag-Erling Smørgrav pid = fork(); 3354a421b63SDag-Erling Smørgrav if (pid == 0) { 3364a421b63SDag-Erling Smørgrav dup2(fdin, 0); 3374a421b63SDag-Erling Smørgrav dup2(fdout, 1); 3384a421b63SDag-Erling Smørgrav 3394a421b63SDag-Erling Smørgrav replacearg(&args, 0, "%s", ssh_program); 34047dd1d1bSDag-Erling Smørgrav if (port != -1) { 34147dd1d1bSDag-Erling Smørgrav addargs(&args, "-p"); 34247dd1d1bSDag-Erling Smørgrav addargs(&args, "%d", port); 34347dd1d1bSDag-Erling Smørgrav } 3444a421b63SDag-Erling Smørgrav if (remuser != NULL) { 3454a421b63SDag-Erling Smørgrav addargs(&args, "-l"); 3464a421b63SDag-Erling Smørgrav addargs(&args, "%s", remuser); 3474a421b63SDag-Erling Smørgrav } 3484a421b63SDag-Erling Smørgrav addargs(&args, "--"); 3494a421b63SDag-Erling Smørgrav addargs(&args, "%s", host); 3504a421b63SDag-Erling Smørgrav addargs(&args, "%s", cmd); 3514a421b63SDag-Erling Smørgrav 3524a421b63SDag-Erling Smørgrav execvp(ssh_program, args.list); 3534a421b63SDag-Erling Smørgrav perror(ssh_program); 3544a421b63SDag-Erling Smørgrav exit(1); 3554a421b63SDag-Erling Smørgrav } else if (pid == -1) { 3564a421b63SDag-Erling Smørgrav fatal("fork: %s", strerror(errno)); 3574a421b63SDag-Erling Smørgrav } 3584a421b63SDag-Erling Smørgrav while (waitpid(pid, &status, 0) == -1) 3594a421b63SDag-Erling Smørgrav if (errno != EINTR) 3604a421b63SDag-Erling Smørgrav fatal("do_cmd2: waitpid: %s", strerror(errno)); 3614a421b63SDag-Erling Smørgrav return 0; 3624a421b63SDag-Erling Smørgrav } 3634a421b63SDag-Erling Smørgrav 364511b41d2SMark Murray typedef struct { 365d4ecd108SDag-Erling Smørgrav size_t cnt; 366511b41d2SMark Murray char *buf; 367511b41d2SMark Murray } BUF; 368511b41d2SMark Murray 369511b41d2SMark Murray BUF *allocbuf(BUF *, int, int); 370511b41d2SMark Murray void lostconn(int); 371511b41d2SMark Murray int okname(char *); 372511b41d2SMark Murray void run_err(const char *,...); 373511b41d2SMark Murray void verifydir(char *); 374511b41d2SMark Murray 375511b41d2SMark Murray struct passwd *pwd; 376511b41d2SMark Murray uid_t userid; 377511b41d2SMark Murray int errs, remin, remout; 378511b41d2SMark Murray int pflag, iamremote, iamrecursive, targetshouldbedirectory; 379511b41d2SMark Murray 380511b41d2SMark Murray #define CMDNEEDS 64 381511b41d2SMark Murray char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */ 382511b41d2SMark Murray 383511b41d2SMark Murray int response(void); 384511b41d2SMark Murray void rsource(char *, struct stat *); 385511b41d2SMark Murray void sink(int, char *[]); 386511b41d2SMark Murray void source(int, char *[]); 387511b41d2SMark Murray void tolocal(int, char *[]); 38847dd1d1bSDag-Erling Smørgrav void toremote(int, char *[]); 389511b41d2SMark Murray void usage(void); 390511b41d2SMark Murray 391511b41d2SMark Murray int 392cf2b5f3bSDag-Erling Smørgrav main(int argc, char **argv) 393511b41d2SMark Murray { 394333ee039SDag-Erling Smørgrav int ch, fflag, tflag, status, n; 39547dd1d1bSDag-Erling Smørgrav char **newargv; 3964a421b63SDag-Erling Smørgrav const char *errstr; 397511b41d2SMark Murray extern char *optarg; 398511b41d2SMark Murray extern int optind; 399511b41d2SMark Murray 400b74df5b2SDag-Erling Smørgrav /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ 401b74df5b2SDag-Erling Smørgrav sanitise_stdfd(); 402b74df5b2SDag-Erling Smørgrav 403ca86bcf2SDag-Erling Smørgrav msetlocale(); 404076ad2f8SDag-Erling Smørgrav 405333ee039SDag-Erling Smørgrav /* Copy argv, because we modify it */ 406ca86bcf2SDag-Erling Smørgrav newargv = xcalloc(MAXIMUM(argc + 1, 1), sizeof(*newargv)); 407333ee039SDag-Erling Smørgrav for (n = 0; n < argc; n++) 408333ee039SDag-Erling Smørgrav newargv[n] = xstrdup(argv[n]); 409333ee039SDag-Erling Smørgrav argv = newargv; 410333ee039SDag-Erling Smørgrav 411cf2b5f3bSDag-Erling Smørgrav __progname = ssh_get_progname(argv[0]); 41283d2307dSDag-Erling Smørgrav 413b74df5b2SDag-Erling Smørgrav memset(&args, '\0', sizeof(args)); 4144a421b63SDag-Erling Smørgrav memset(&remote_remote_args, '\0', sizeof(remote_remote_args)); 4154a421b63SDag-Erling Smørgrav args.list = remote_remote_args.list = NULL; 416b74df5b2SDag-Erling Smørgrav addargs(&args, "%s", ssh_program); 417ae1f160dSDag-Erling Smørgrav addargs(&args, "-x"); 4184a421b63SDag-Erling Smørgrav addargs(&args, "-oForwardAgent=no"); 4194a421b63SDag-Erling Smørgrav addargs(&args, "-oPermitLocalCommand=no"); 4204a421b63SDag-Erling Smørgrav addargs(&args, "-oClearAllForwardings=yes"); 42147dd1d1bSDag-Erling Smørgrav addargs(&args, "-oRemoteCommand=none"); 42247dd1d1bSDag-Erling Smørgrav addargs(&args, "-oRequestTTY=no"); 4235b9b2fafSBrian Feldman 424511b41d2SMark Murray fflag = tflag = 0; 4254a421b63SDag-Erling Smørgrav while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q12346S:o:F:")) != -1) 426511b41d2SMark Murray switch (ch) { 427511b41d2SMark Murray /* User-visible flags. */ 428e73e9afaSDag-Erling Smørgrav case '1': 4294f52dfbbSDag-Erling Smørgrav fatal("SSH protocol v.1 is no longer supported"); 4304f52dfbbSDag-Erling Smørgrav break; 431e73e9afaSDag-Erling Smørgrav case '2': 4324f52dfbbSDag-Erling Smørgrav /* Ignored */ 4334f52dfbbSDag-Erling Smørgrav break; 434511b41d2SMark Murray case '4': 435511b41d2SMark Murray case '6': 4365b9b2fafSBrian Feldman case 'C': 437ae1f160dSDag-Erling Smørgrav addargs(&args, "-%c", ch); 4384a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "-%c", ch); 4394a421b63SDag-Erling Smørgrav break; 4404a421b63SDag-Erling Smørgrav case '3': 4414a421b63SDag-Erling Smørgrav throughlocal = 1; 4425b9b2fafSBrian Feldman break; 4435b9b2fafSBrian Feldman case 'o': 4445b9b2fafSBrian Feldman case 'c': 4455b9b2fafSBrian Feldman case 'i': 446ae1f160dSDag-Erling Smørgrav case 'F': 4474a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "-%c", ch); 4484a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "%s", optarg); 449b15c8340SDag-Erling Smørgrav addargs(&args, "-%c", ch); 450b15c8340SDag-Erling Smørgrav addargs(&args, "%s", optarg); 4515b9b2fafSBrian Feldman break; 4525b9b2fafSBrian Feldman case 'P': 45347dd1d1bSDag-Erling Smørgrav sshport = a2port(optarg); 45447dd1d1bSDag-Erling Smørgrav if (sshport <= 0) 45547dd1d1bSDag-Erling Smørgrav fatal("bad port \"%s\"\n", optarg); 4565b9b2fafSBrian Feldman break; 4575b9b2fafSBrian Feldman case 'B': 4584a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "-oBatchmode=yes"); 4594a421b63SDag-Erling Smørgrav addargs(&args, "-oBatchmode=yes"); 460511b41d2SMark Murray break; 461e73e9afaSDag-Erling Smørgrav case 'l': 4624a421b63SDag-Erling Smørgrav limit_kbps = strtonum(optarg, 1, 100 * 1024 * 1024, 4634a421b63SDag-Erling Smørgrav &errstr); 4644a421b63SDag-Erling Smørgrav if (errstr != NULL) 465e73e9afaSDag-Erling Smørgrav usage(); 4664a421b63SDag-Erling Smørgrav limit_kbps *= 1024; /* kbps */ 4674a421b63SDag-Erling Smørgrav bandwidth_limit_init(&bwlimit, limit_kbps, COPY_BUFLEN); 468e73e9afaSDag-Erling Smørgrav break; 469511b41d2SMark Murray case 'p': 470511b41d2SMark Murray pflag = 1; 471511b41d2SMark Murray break; 472511b41d2SMark Murray case 'r': 473511b41d2SMark Murray iamrecursive = 1; 474511b41d2SMark Murray break; 475b66f2d16SKris Kennaway case 'S': 4765b9b2fafSBrian Feldman ssh_program = xstrdup(optarg); 4775b9b2fafSBrian Feldman break; 4785b9b2fafSBrian Feldman case 'v': 479ae1f160dSDag-Erling Smørgrav addargs(&args, "-v"); 4804a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "-v"); 4815b9b2fafSBrian Feldman verbose_mode = 1; 4825b9b2fafSBrian Feldman break; 4835b9b2fafSBrian Feldman case 'q': 4841ec0d754SDag-Erling Smørgrav addargs(&args, "-q"); 4854a421b63SDag-Erling Smørgrav addargs(&remote_remote_args, "-q"); 4865b9b2fafSBrian Feldman showprogress = 0; 487b66f2d16SKris Kennaway break; 488b66f2d16SKris Kennaway 489511b41d2SMark Murray /* Server options. */ 490511b41d2SMark Murray case 'd': 491511b41d2SMark Murray targetshouldbedirectory = 1; 492511b41d2SMark Murray break; 493511b41d2SMark Murray case 'f': /* "from" */ 494511b41d2SMark Murray iamremote = 1; 495511b41d2SMark Murray fflag = 1; 496511b41d2SMark Murray break; 497511b41d2SMark Murray case 't': /* "to" */ 498511b41d2SMark Murray iamremote = 1; 499511b41d2SMark Murray tflag = 1; 50083d2307dSDag-Erling Smørgrav #ifdef HAVE_CYGWIN 50183d2307dSDag-Erling Smørgrav setmode(0, O_BINARY); 50283d2307dSDag-Erling Smørgrav #endif 503511b41d2SMark Murray break; 504511b41d2SMark Murray default: 505511b41d2SMark Murray usage(); 506511b41d2SMark Murray } 507511b41d2SMark Murray argc -= optind; 508511b41d2SMark Murray argv += optind; 509511b41d2SMark Murray 510511b41d2SMark Murray if ((pwd = getpwuid(userid = getuid())) == NULL) 511cf2b5f3bSDag-Erling Smørgrav fatal("unknown user %u", (u_int) userid); 512511b41d2SMark Murray 513d4af9e69SDag-Erling Smørgrav if (!isatty(STDOUT_FILENO)) 514511b41d2SMark Murray showprogress = 0; 515511b41d2SMark Murray 516acc1a9efSDag-Erling Smørgrav if (pflag) { 517acc1a9efSDag-Erling Smørgrav /* Cannot pledge: -p allows setuid/setgid files... */ 518acc1a9efSDag-Erling Smørgrav } else { 519acc1a9efSDag-Erling Smørgrav if (pledge("stdio rpath wpath cpath fattr tty proc exec", 520acc1a9efSDag-Erling Smørgrav NULL) == -1) { 521acc1a9efSDag-Erling Smørgrav perror("pledge"); 522acc1a9efSDag-Erling Smørgrav exit(1); 523acc1a9efSDag-Erling Smørgrav } 524acc1a9efSDag-Erling Smørgrav } 525acc1a9efSDag-Erling Smørgrav 526511b41d2SMark Murray remin = STDIN_FILENO; 527511b41d2SMark Murray remout = STDOUT_FILENO; 528511b41d2SMark Murray 529511b41d2SMark Murray if (fflag) { 530511b41d2SMark Murray /* Follow "protocol", send data. */ 531511b41d2SMark Murray (void) response(); 532511b41d2SMark Murray source(argc, argv); 533511b41d2SMark Murray exit(errs != 0); 534511b41d2SMark Murray } 535511b41d2SMark Murray if (tflag) { 536511b41d2SMark Murray /* Receive data. */ 537511b41d2SMark Murray sink(argc, argv); 538511b41d2SMark Murray exit(errs != 0); 539511b41d2SMark Murray } 540511b41d2SMark Murray if (argc < 2) 541511b41d2SMark Murray usage(); 542511b41d2SMark Murray if (argc > 2) 543511b41d2SMark Murray targetshouldbedirectory = 1; 544511b41d2SMark Murray 545511b41d2SMark Murray remin = remout = -1; 546e73e9afaSDag-Erling Smørgrav do_cmd_pid = -1; 547511b41d2SMark Murray /* Command to be executed on remote system using "ssh". */ 5481e8db6e2SBrian Feldman (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s", 5491e8db6e2SBrian Feldman verbose_mode ? " -v" : "", 550511b41d2SMark Murray iamrecursive ? " -r" : "", pflag ? " -p" : "", 551511b41d2SMark Murray targetshouldbedirectory ? " -d" : ""); 552511b41d2SMark Murray 553511b41d2SMark Murray (void) signal(SIGPIPE, lostconn); 554511b41d2SMark Murray 55547dd1d1bSDag-Erling Smørgrav if (colon(argv[argc - 1])) /* Dest is remote host. */ 55647dd1d1bSDag-Erling Smørgrav toremote(argc, argv); 557511b41d2SMark Murray else { 558511b41d2SMark Murray if (targetshouldbedirectory) 559511b41d2SMark Murray verifydir(argv[argc - 1]); 560b74df5b2SDag-Erling Smørgrav tolocal(argc, argv); /* Dest is local host. */ 561511b41d2SMark Murray } 562e73e9afaSDag-Erling Smørgrav /* 563e73e9afaSDag-Erling Smørgrav * Finally check the exit status of the ssh process, if one was forked 564cce7d346SDag-Erling Smørgrav * and no error has occurred yet 565e73e9afaSDag-Erling Smørgrav */ 566e73e9afaSDag-Erling Smørgrav if (do_cmd_pid != -1 && errs == 0) { 567e73e9afaSDag-Erling Smørgrav if (remin != -1) 568e73e9afaSDag-Erling Smørgrav (void) close(remin); 569e73e9afaSDag-Erling Smørgrav if (remout != -1) 570e73e9afaSDag-Erling Smørgrav (void) close(remout); 571e73e9afaSDag-Erling Smørgrav if (waitpid(do_cmd_pid, &status, 0) == -1) 572e73e9afaSDag-Erling Smørgrav errs = 1; 573e73e9afaSDag-Erling Smørgrav else { 574e73e9afaSDag-Erling Smørgrav if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) 575e73e9afaSDag-Erling Smørgrav errs = 1; 576e73e9afaSDag-Erling Smørgrav } 577e73e9afaSDag-Erling Smørgrav } 578511b41d2SMark Murray exit(errs != 0); 579511b41d2SMark Murray } 580511b41d2SMark Murray 5814a421b63SDag-Erling Smørgrav /* Callback from atomicio6 to update progress meter and limit bandwidth */ 5824a421b63SDag-Erling Smørgrav static int 5834a421b63SDag-Erling Smørgrav scpio(void *_cnt, size_t s) 584d4af9e69SDag-Erling Smørgrav { 5854a421b63SDag-Erling Smørgrav off_t *cnt = (off_t *)_cnt; 586d4af9e69SDag-Erling Smørgrav 5874a421b63SDag-Erling Smørgrav *cnt += s; 5884a421b63SDag-Erling Smørgrav if (limit_kbps > 0) 5894a421b63SDag-Erling Smørgrav bandwidth_limit(&bwlimit, s); 5904a421b63SDag-Erling Smørgrav return 0; 591d4af9e69SDag-Erling Smørgrav } 592d4af9e69SDag-Erling Smørgrav 593e4a9863fSDag-Erling Smørgrav static int 594e4a9863fSDag-Erling Smørgrav do_times(int fd, int verb, const struct stat *sb) 595e4a9863fSDag-Erling Smørgrav { 596e4a9863fSDag-Erling Smørgrav /* strlen(2^64) == 20; strlen(10^6) == 7 */ 597e4a9863fSDag-Erling Smørgrav char buf[(20 + 7 + 2) * 2 + 2]; 598e4a9863fSDag-Erling Smørgrav 599e4a9863fSDag-Erling Smørgrav (void)snprintf(buf, sizeof(buf), "T%llu 0 %llu 0\n", 600e4a9863fSDag-Erling Smørgrav (unsigned long long) (sb->st_mtime < 0 ? 0 : sb->st_mtime), 601e4a9863fSDag-Erling Smørgrav (unsigned long long) (sb->st_atime < 0 ? 0 : sb->st_atime)); 602e4a9863fSDag-Erling Smørgrav if (verb) { 603e4a9863fSDag-Erling Smørgrav fprintf(stderr, "File mtime %lld atime %lld\n", 604e4a9863fSDag-Erling Smørgrav (long long)sb->st_mtime, (long long)sb->st_atime); 605e4a9863fSDag-Erling Smørgrav fprintf(stderr, "Sending file timestamps: %s", buf); 606e4a9863fSDag-Erling Smørgrav } 607e4a9863fSDag-Erling Smørgrav (void) atomicio(vwrite, fd, buf, strlen(buf)); 608e4a9863fSDag-Erling Smørgrav return (response()); 609e4a9863fSDag-Erling Smørgrav } 610e4a9863fSDag-Erling Smørgrav 61147dd1d1bSDag-Erling Smørgrav static int 61247dd1d1bSDag-Erling Smørgrav parse_scp_uri(const char *uri, char **userp, char **hostp, int *portp, 61347dd1d1bSDag-Erling Smørgrav char **pathp) 614511b41d2SMark Murray { 61547dd1d1bSDag-Erling Smørgrav int r; 61647dd1d1bSDag-Erling Smørgrav 61747dd1d1bSDag-Erling Smørgrav r = parse_uri("scp", uri, userp, hostp, portp, pathp); 61847dd1d1bSDag-Erling Smørgrav if (r == 0 && *pathp == NULL) 61947dd1d1bSDag-Erling Smørgrav *pathp = xstrdup("."); 62047dd1d1bSDag-Erling Smørgrav return r; 62147dd1d1bSDag-Erling Smørgrav } 62247dd1d1bSDag-Erling Smørgrav 62347dd1d1bSDag-Erling Smørgrav void 62447dd1d1bSDag-Erling Smørgrav toremote(int argc, char **argv) 62547dd1d1bSDag-Erling Smørgrav { 62647dd1d1bSDag-Erling Smørgrav char *suser = NULL, *host = NULL, *src = NULL; 62747dd1d1bSDag-Erling Smørgrav char *bp, *tuser, *thost, *targ; 62847dd1d1bSDag-Erling Smørgrav int sport = -1, tport = -1; 629b74df5b2SDag-Erling Smørgrav arglist alist; 63047dd1d1bSDag-Erling Smørgrav int i, r; 6314a421b63SDag-Erling Smørgrav u_int j; 632b74df5b2SDag-Erling Smørgrav 633b74df5b2SDag-Erling Smørgrav memset(&alist, '\0', sizeof(alist)); 634b74df5b2SDag-Erling Smørgrav alist.list = NULL; 635511b41d2SMark Murray 63647dd1d1bSDag-Erling Smørgrav /* Parse target */ 63747dd1d1bSDag-Erling Smørgrav r = parse_scp_uri(argv[argc - 1], &tuser, &thost, &tport, &targ); 63847dd1d1bSDag-Erling Smørgrav if (r == -1) { 63947dd1d1bSDag-Erling Smørgrav fmprintf(stderr, "%s: invalid uri\n", argv[argc - 1]); 64047dd1d1bSDag-Erling Smørgrav ++errs; 64147dd1d1bSDag-Erling Smørgrav goto out; 642511b41d2SMark Murray } 64347dd1d1bSDag-Erling Smørgrav if (r != 0) { 64447dd1d1bSDag-Erling Smørgrav if (parse_user_host_path(argv[argc - 1], &tuser, &thost, 64547dd1d1bSDag-Erling Smørgrav &targ) == -1) { 64647dd1d1bSDag-Erling Smørgrav fmprintf(stderr, "%s: invalid target\n", argv[argc - 1]); 64747dd1d1bSDag-Erling Smørgrav ++errs; 64847dd1d1bSDag-Erling Smørgrav goto out; 64947dd1d1bSDag-Erling Smørgrav } 65047dd1d1bSDag-Erling Smørgrav } 651b74df5b2SDag-Erling Smørgrav if (tuser != NULL && !okname(tuser)) { 65247dd1d1bSDag-Erling Smørgrav ++errs; 65347dd1d1bSDag-Erling Smørgrav goto out; 654b74df5b2SDag-Erling Smørgrav } 655b74df5b2SDag-Erling Smørgrav 65647dd1d1bSDag-Erling Smørgrav /* Parse source files */ 657511b41d2SMark Murray for (i = 0; i < argc - 1; i++) { 65847dd1d1bSDag-Erling Smørgrav free(suser); 65947dd1d1bSDag-Erling Smørgrav free(host); 66047dd1d1bSDag-Erling Smørgrav free(src); 66147dd1d1bSDag-Erling Smørgrav r = parse_scp_uri(argv[i], &suser, &host, &sport, &src); 66247dd1d1bSDag-Erling Smørgrav if (r == -1) { 66347dd1d1bSDag-Erling Smørgrav fmprintf(stderr, "%s: invalid uri\n", argv[i]); 66447dd1d1bSDag-Erling Smørgrav ++errs; 6654a421b63SDag-Erling Smørgrav continue; 6664a421b63SDag-Erling Smørgrav } 66747dd1d1bSDag-Erling Smørgrav if (r != 0) { 66847dd1d1bSDag-Erling Smørgrav parse_user_host_path(argv[i], &suser, &host, &src); 66947dd1d1bSDag-Erling Smørgrav } 67047dd1d1bSDag-Erling Smørgrav if (suser != NULL && !okname(suser)) { 67147dd1d1bSDag-Erling Smørgrav ++errs; 67247dd1d1bSDag-Erling Smørgrav continue; 67347dd1d1bSDag-Erling Smørgrav } 67447dd1d1bSDag-Erling Smørgrav if (host && throughlocal) { /* extended remote to remote */ 675462c32cbSDag-Erling Smørgrav xasprintf(&bp, "%s -f %s%s", cmd, 676462c32cbSDag-Erling Smørgrav *src == '-' ? "-- " : "", src); 67747dd1d1bSDag-Erling Smørgrav if (do_cmd(host, suser, sport, bp, &remin, &remout) < 0) 6784a421b63SDag-Erling Smørgrav exit(1); 679e4a9863fSDag-Erling Smørgrav free(bp); 680462c32cbSDag-Erling Smørgrav xasprintf(&bp, "%s -t %s%s", cmd, 681462c32cbSDag-Erling Smørgrav *targ == '-' ? "-- " : "", targ); 68247dd1d1bSDag-Erling Smørgrav if (do_cmd2(thost, tuser, tport, bp, remin, remout) < 0) 6834a421b63SDag-Erling Smørgrav exit(1); 684e4a9863fSDag-Erling Smørgrav free(bp); 6854a421b63SDag-Erling Smørgrav (void) close(remin); 6864a421b63SDag-Erling Smørgrav (void) close(remout); 6874a421b63SDag-Erling Smørgrav remin = remout = -1; 68847dd1d1bSDag-Erling Smørgrav } else if (host) { /* standard remote to remote */ 68947dd1d1bSDag-Erling Smørgrav if (tport != -1 && tport != SSH_DEFAULT_PORT) { 69047dd1d1bSDag-Erling Smørgrav /* This would require the remote support URIs */ 69147dd1d1bSDag-Erling Smørgrav fatal("target port not supported with two " 69247dd1d1bSDag-Erling Smørgrav "remote hosts without the -3 option"); 69347dd1d1bSDag-Erling Smørgrav } 69447dd1d1bSDag-Erling Smørgrav 695b74df5b2SDag-Erling Smørgrav freeargs(&alist); 696b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", ssh_program); 697b74df5b2SDag-Erling Smørgrav addargs(&alist, "-x"); 6984a421b63SDag-Erling Smørgrav addargs(&alist, "-oClearAllForwardings=yes"); 699b74df5b2SDag-Erling Smørgrav addargs(&alist, "-n"); 7004a421b63SDag-Erling Smørgrav for (j = 0; j < remote_remote_args.num; j++) { 7014a421b63SDag-Erling Smørgrav addargs(&alist, "%s", 7024a421b63SDag-Erling Smørgrav remote_remote_args.list[j]); 7034a421b63SDag-Erling Smørgrav } 704b74df5b2SDag-Erling Smørgrav 70547dd1d1bSDag-Erling Smørgrav if (sport != -1) { 70647dd1d1bSDag-Erling Smørgrav addargs(&alist, "-p"); 70747dd1d1bSDag-Erling Smørgrav addargs(&alist, "%d", sport); 70847dd1d1bSDag-Erling Smørgrav } 70947dd1d1bSDag-Erling Smørgrav if (suser) { 710b74df5b2SDag-Erling Smørgrav addargs(&alist, "-l"); 711b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", suser); 712b74df5b2SDag-Erling Smørgrav } 713b15c8340SDag-Erling Smørgrav addargs(&alist, "--"); 714b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", host); 715b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", cmd); 716b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", src); 717b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s%s%s:%s", 718511b41d2SMark Murray tuser ? tuser : "", tuser ? "@" : "", 719511b41d2SMark Murray thost, targ); 720b74df5b2SDag-Erling Smørgrav if (do_local_cmd(&alist) != 0) 7211ec0d754SDag-Erling Smørgrav errs = 1; 722511b41d2SMark Murray } else { /* local to remote */ 723511b41d2SMark Murray if (remin == -1) { 724462c32cbSDag-Erling Smørgrav xasprintf(&bp, "%s -t %s%s", cmd, 725462c32cbSDag-Erling Smørgrav *targ == '-' ? "-- " : "", targ); 72647dd1d1bSDag-Erling Smørgrav if (do_cmd(thost, tuser, tport, bp, &remin, 727333ee039SDag-Erling Smørgrav &remout) < 0) 728511b41d2SMark Murray exit(1); 729511b41d2SMark Murray if (response() < 0) 730511b41d2SMark Murray exit(1); 731e4a9863fSDag-Erling Smørgrav free(bp); 732511b41d2SMark Murray } 733511b41d2SMark Murray source(1, argv + i); 734511b41d2SMark Murray } 735511b41d2SMark Murray } 73647dd1d1bSDag-Erling Smørgrav out: 73747dd1d1bSDag-Erling Smørgrav free(tuser); 73847dd1d1bSDag-Erling Smørgrav free(thost); 73947dd1d1bSDag-Erling Smørgrav free(targ); 74047dd1d1bSDag-Erling Smørgrav free(suser); 74147dd1d1bSDag-Erling Smørgrav free(host); 74247dd1d1bSDag-Erling Smørgrav free(src); 743511b41d2SMark Murray } 744511b41d2SMark Murray 745511b41d2SMark Murray void 746cf2b5f3bSDag-Erling Smørgrav tolocal(int argc, char **argv) 747511b41d2SMark Murray { 74847dd1d1bSDag-Erling Smørgrav char *bp, *host = NULL, *src = NULL, *suser = NULL; 749b74df5b2SDag-Erling Smørgrav arglist alist; 75047dd1d1bSDag-Erling Smørgrav int i, r, sport = -1; 751b74df5b2SDag-Erling Smørgrav 752b74df5b2SDag-Erling Smørgrav memset(&alist, '\0', sizeof(alist)); 753b74df5b2SDag-Erling Smørgrav alist.list = NULL; 754511b41d2SMark Murray 755511b41d2SMark Murray for (i = 0; i < argc - 1; i++) { 75647dd1d1bSDag-Erling Smørgrav free(suser); 75747dd1d1bSDag-Erling Smørgrav free(host); 75847dd1d1bSDag-Erling Smørgrav free(src); 75947dd1d1bSDag-Erling Smørgrav r = parse_scp_uri(argv[i], &suser, &host, &sport, &src); 76047dd1d1bSDag-Erling Smørgrav if (r == -1) { 76147dd1d1bSDag-Erling Smørgrav fmprintf(stderr, "%s: invalid uri\n", argv[i]); 76247dd1d1bSDag-Erling Smørgrav ++errs; 76347dd1d1bSDag-Erling Smørgrav continue; 76447dd1d1bSDag-Erling Smørgrav } 76547dd1d1bSDag-Erling Smørgrav if (r != 0) 76647dd1d1bSDag-Erling Smørgrav parse_user_host_path(argv[i], &suser, &host, &src); 76747dd1d1bSDag-Erling Smørgrav if (suser != NULL && !okname(suser)) { 76847dd1d1bSDag-Erling Smørgrav ++errs; 76947dd1d1bSDag-Erling Smørgrav continue; 77047dd1d1bSDag-Erling Smørgrav } 77147dd1d1bSDag-Erling Smørgrav if (!host) { /* Local to local. */ 772b74df5b2SDag-Erling Smørgrav freeargs(&alist); 773b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", _PATH_CP); 774b74df5b2SDag-Erling Smørgrav if (iamrecursive) 775b74df5b2SDag-Erling Smørgrav addargs(&alist, "-r"); 776b74df5b2SDag-Erling Smørgrav if (pflag) 777b74df5b2SDag-Erling Smørgrav addargs(&alist, "-p"); 778b15c8340SDag-Erling Smørgrav addargs(&alist, "--"); 779b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", argv[i]); 780b74df5b2SDag-Erling Smørgrav addargs(&alist, "%s", argv[argc-1]); 781b74df5b2SDag-Erling Smørgrav if (do_local_cmd(&alist)) 782511b41d2SMark Murray ++errs; 783511b41d2SMark Murray continue; 784511b41d2SMark Murray } 78547dd1d1bSDag-Erling Smørgrav /* Remote to local. */ 786462c32cbSDag-Erling Smørgrav xasprintf(&bp, "%s -f %s%s", 787462c32cbSDag-Erling Smørgrav cmd, *src == '-' ? "-- " : "", src); 78847dd1d1bSDag-Erling Smørgrav if (do_cmd(host, suser, sport, bp, &remin, &remout) < 0) { 789e4a9863fSDag-Erling Smørgrav free(bp); 790511b41d2SMark Murray ++errs; 791511b41d2SMark Murray continue; 792511b41d2SMark Murray } 793e4a9863fSDag-Erling Smørgrav free(bp); 794511b41d2SMark Murray sink(1, argv + argc - 1); 795511b41d2SMark Murray (void) close(remin); 796511b41d2SMark Murray remin = remout = -1; 797511b41d2SMark Murray } 79847dd1d1bSDag-Erling Smørgrav free(suser); 79947dd1d1bSDag-Erling Smørgrav free(host); 80047dd1d1bSDag-Erling Smørgrav free(src); 801511b41d2SMark Murray } 802511b41d2SMark Murray 803511b41d2SMark Murray void 804cf2b5f3bSDag-Erling Smørgrav source(int argc, char **argv) 805511b41d2SMark Murray { 806511b41d2SMark Murray struct stat stb; 807511b41d2SMark Murray static BUF buffer; 808511b41d2SMark Murray BUF *bp; 809d4af9e69SDag-Erling Smørgrav off_t i, statbytes; 810a0ee8cc6SDag-Erling Smørgrav size_t amt, nr; 811d4ecd108SDag-Erling Smørgrav int fd = -1, haderr, indx; 812bc5531deSDag-Erling Smørgrav char *last, *name, buf[2048], encname[PATH_MAX]; 8131e8db6e2SBrian Feldman int len; 814511b41d2SMark Murray 815511b41d2SMark Murray for (indx = 0; indx < argc; ++indx) { 816511b41d2SMark Murray name = argv[indx]; 817511b41d2SMark Murray statbytes = 0; 8181e8db6e2SBrian Feldman len = strlen(name); 8191e8db6e2SBrian Feldman while (len > 1 && name[len-1] == '/') 8201e8db6e2SBrian Feldman name[--len] = '\0'; 821d4af9e69SDag-Erling Smørgrav if ((fd = open(name, O_RDONLY|O_NONBLOCK, 0)) < 0) 822511b41d2SMark Murray goto syserr; 823d4af9e69SDag-Erling Smørgrav if (strchr(name, '\n') != NULL) { 824d4af9e69SDag-Erling Smørgrav strnvis(encname, name, sizeof(encname), VIS_NL); 825d4af9e69SDag-Erling Smørgrav name = encname; 826d4af9e69SDag-Erling Smørgrav } 827511b41d2SMark Murray if (fstat(fd, &stb) < 0) { 828511b41d2SMark Murray syserr: run_err("%s: %s", name, strerror(errno)); 829511b41d2SMark Murray goto next; 830511b41d2SMark Murray } 831d4af9e69SDag-Erling Smørgrav if (stb.st_size < 0) { 832d4af9e69SDag-Erling Smørgrav run_err("%s: %s", name, "Negative file size"); 833d4af9e69SDag-Erling Smørgrav goto next; 834d4af9e69SDag-Erling Smørgrav } 835d4af9e69SDag-Erling Smørgrav unset_nonblock(fd); 836511b41d2SMark Murray switch (stb.st_mode & S_IFMT) { 837511b41d2SMark Murray case S_IFREG: 838511b41d2SMark Murray break; 839511b41d2SMark Murray case S_IFDIR: 840511b41d2SMark Murray if (iamrecursive) { 841511b41d2SMark Murray rsource(name, &stb); 842511b41d2SMark Murray goto next; 843511b41d2SMark Murray } 844511b41d2SMark Murray /* FALLTHROUGH */ 845511b41d2SMark Murray default: 846511b41d2SMark Murray run_err("%s: not a regular file", name); 847511b41d2SMark Murray goto next; 848511b41d2SMark Murray } 849511b41d2SMark Murray if ((last = strrchr(name, '/')) == NULL) 850511b41d2SMark Murray last = name; 851511b41d2SMark Murray else 852511b41d2SMark Murray ++last; 853511b41d2SMark Murray curfile = last; 854511b41d2SMark Murray if (pflag) { 855e4a9863fSDag-Erling Smørgrav if (do_times(remout, verbose_mode, &stb) < 0) 856511b41d2SMark Murray goto next; 857511b41d2SMark Murray } 858511b41d2SMark Murray #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) 8591e8db6e2SBrian Feldman snprintf(buf, sizeof buf, "C%04o %lld %s\n", 8601e8db6e2SBrian Feldman (u_int) (stb.st_mode & FILEMODEMASK), 861b74df5b2SDag-Erling Smørgrav (long long)stb.st_size, last); 862076ad2f8SDag-Erling Smørgrav if (verbose_mode) 863076ad2f8SDag-Erling Smørgrav fmprintf(stderr, "Sending file modes: %s", buf); 864cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, buf, strlen(buf)); 865511b41d2SMark Murray if (response() < 0) 866511b41d2SMark Murray goto next; 867d4af9e69SDag-Erling Smørgrav if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) { 868b74df5b2SDag-Erling Smørgrav next: if (fd != -1) { 869b74df5b2SDag-Erling Smørgrav (void) close(fd); 870b74df5b2SDag-Erling Smørgrav fd = -1; 871b74df5b2SDag-Erling Smørgrav } 872511b41d2SMark Murray continue; 873511b41d2SMark Murray } 874e73e9afaSDag-Erling Smørgrav if (showprogress) 875e73e9afaSDag-Erling Smørgrav start_progress_meter(curfile, stb.st_size, &statbytes); 876d4af9e69SDag-Erling Smørgrav set_nonblock(remout); 877511b41d2SMark Murray for (haderr = i = 0; i < stb.st_size; i += bp->cnt) { 878511b41d2SMark Murray amt = bp->cnt; 879d4af9e69SDag-Erling Smørgrav if (i + (off_t)amt > stb.st_size) 880511b41d2SMark Murray amt = stb.st_size - i; 881511b41d2SMark Murray if (!haderr) { 882a0ee8cc6SDag-Erling Smørgrav if ((nr = atomicio(read, fd, 883a0ee8cc6SDag-Erling Smørgrav bp->buf, amt)) != amt) { 884d4ecd108SDag-Erling Smørgrav haderr = errno; 885a0ee8cc6SDag-Erling Smørgrav memset(bp->buf + nr, 0, amt - nr); 886a0ee8cc6SDag-Erling Smørgrav } 887511b41d2SMark Murray } 888d4af9e69SDag-Erling Smørgrav /* Keep writing after error to retain sync */ 889d4af9e69SDag-Erling Smørgrav if (haderr) { 890cf2b5f3bSDag-Erling Smørgrav (void)atomicio(vwrite, remout, bp->buf, amt); 891a0ee8cc6SDag-Erling Smørgrav memset(bp->buf, 0, amt); 892d4af9e69SDag-Erling Smørgrav continue; 893d4af9e69SDag-Erling Smørgrav } 8944a421b63SDag-Erling Smørgrav if (atomicio6(vwrite, remout, bp->buf, amt, scpio, 895d4af9e69SDag-Erling Smørgrav &statbytes) != amt) 896d4ecd108SDag-Erling Smørgrav haderr = errno; 897511b41d2SMark Murray } 898d4af9e69SDag-Erling Smørgrav unset_nonblock(remout); 899511b41d2SMark Murray 900b74df5b2SDag-Erling Smørgrav if (fd != -1) { 901511b41d2SMark Murray if (close(fd) < 0 && !haderr) 902511b41d2SMark Murray haderr = errno; 903b74df5b2SDag-Erling Smørgrav fd = -1; 904b74df5b2SDag-Erling Smørgrav } 905511b41d2SMark Murray if (!haderr) 906cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 907511b41d2SMark Murray else 908511b41d2SMark Murray run_err("%s: %s", name, strerror(haderr)); 909511b41d2SMark Murray (void) response(); 910076ad2f8SDag-Erling Smørgrav if (showprogress) 911076ad2f8SDag-Erling Smørgrav stop_progress_meter(); 912511b41d2SMark Murray } 913511b41d2SMark Murray } 914511b41d2SMark Murray 915511b41d2SMark Murray void 916cf2b5f3bSDag-Erling Smørgrav rsource(char *name, struct stat *statp) 917511b41d2SMark Murray { 918511b41d2SMark Murray DIR *dirp; 919511b41d2SMark Murray struct dirent *dp; 920bc5531deSDag-Erling Smørgrav char *last, *vect[1], path[PATH_MAX]; 921511b41d2SMark Murray 922511b41d2SMark Murray if (!(dirp = opendir(name))) { 923511b41d2SMark Murray run_err("%s: %s", name, strerror(errno)); 924511b41d2SMark Murray return; 925511b41d2SMark Murray } 926511b41d2SMark Murray last = strrchr(name, '/'); 927acc1a9efSDag-Erling Smørgrav if (last == NULL) 928511b41d2SMark Murray last = name; 929511b41d2SMark Murray else 930511b41d2SMark Murray last++; 931511b41d2SMark Murray if (pflag) { 932e4a9863fSDag-Erling Smørgrav if (do_times(remout, verbose_mode, statp) < 0) { 933511b41d2SMark Murray closedir(dirp); 934511b41d2SMark Murray return; 935511b41d2SMark Murray } 936511b41d2SMark Murray } 9371e8db6e2SBrian Feldman (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n", 9381e8db6e2SBrian Feldman (u_int) (statp->st_mode & FILEMODEMASK), 0, last); 939511b41d2SMark Murray if (verbose_mode) 940076ad2f8SDag-Erling Smørgrav fmprintf(stderr, "Entering directory: %s", path); 941cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, path, strlen(path)); 942511b41d2SMark Murray if (response() < 0) { 943511b41d2SMark Murray closedir(dirp); 944511b41d2SMark Murray return; 945511b41d2SMark Murray } 9461e8db6e2SBrian Feldman while ((dp = readdir(dirp)) != NULL) { 947511b41d2SMark Murray if (dp->d_ino == 0) 948511b41d2SMark Murray continue; 949511b41d2SMark Murray if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) 950511b41d2SMark Murray continue; 951511b41d2SMark Murray if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) { 952511b41d2SMark Murray run_err("%s/%s: name too long", name, dp->d_name); 953511b41d2SMark Murray continue; 954511b41d2SMark Murray } 9551e8db6e2SBrian Feldman (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name); 956511b41d2SMark Murray vect[0] = path; 957511b41d2SMark Murray source(1, vect); 958511b41d2SMark Murray } 959511b41d2SMark Murray (void) closedir(dirp); 960cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "E\n", 2); 961511b41d2SMark Murray (void) response(); 962511b41d2SMark Murray } 963511b41d2SMark Murray 9644f52dfbbSDag-Erling Smørgrav #define TYPE_OVERFLOW(type, val) \ 9654f52dfbbSDag-Erling Smørgrav ((sizeof(type) == 4 && (val) > INT32_MAX) || \ 9664f52dfbbSDag-Erling Smørgrav (sizeof(type) == 8 && (val) > INT64_MAX) || \ 9674f52dfbbSDag-Erling Smørgrav (sizeof(type) != 4 && sizeof(type) != 8)) 9684f52dfbbSDag-Erling Smørgrav 969511b41d2SMark Murray void 970cf2b5f3bSDag-Erling Smørgrav sink(int argc, char **argv) 971511b41d2SMark Murray { 972511b41d2SMark Murray static BUF buffer; 973511b41d2SMark Murray struct stat stb; 974511b41d2SMark Murray enum { 975511b41d2SMark Murray YES, NO, DISPLAYED 976511b41d2SMark Murray } wrerr; 977511b41d2SMark Murray BUF *bp; 978d4ecd108SDag-Erling Smørgrav off_t i; 979d4ecd108SDag-Erling Smørgrav size_t j, count; 980333ee039SDag-Erling Smørgrav int amt, exists, first, ofd; 981333ee039SDag-Erling Smørgrav mode_t mode, omode, mask; 982e73e9afaSDag-Erling Smørgrav off_t size, statbytes; 983e4a9863fSDag-Erling Smørgrav unsigned long long ull; 984b66f2d16SKris Kennaway int setimes, targisdir, wrerrno = 0; 985076ad2f8SDag-Erling Smørgrav char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048]; 9865b9b2fafSBrian Feldman struct timeval tv[2]; 987511b41d2SMark Murray 9881e8db6e2SBrian Feldman #define atime tv[0] 9891e8db6e2SBrian Feldman #define mtime tv[1] 990aa49c926SDag-Erling Smørgrav #define SCREWUP(str) { why = str; goto screwup; } 991511b41d2SMark Murray 9924f52dfbbSDag-Erling Smørgrav if (TYPE_OVERFLOW(time_t, 0) || TYPE_OVERFLOW(off_t, 0)) 9934f52dfbbSDag-Erling Smørgrav SCREWUP("Unexpected off_t/time_t size"); 9944f52dfbbSDag-Erling Smørgrav 995511b41d2SMark Murray setimes = targisdir = 0; 996511b41d2SMark Murray mask = umask(0); 997511b41d2SMark Murray if (!pflag) 998511b41d2SMark Murray (void) umask(mask); 999511b41d2SMark Murray if (argc != 1) { 1000511b41d2SMark Murray run_err("ambiguous target"); 1001511b41d2SMark Murray exit(1); 1002511b41d2SMark Murray } 1003511b41d2SMark Murray targ = *argv; 1004511b41d2SMark Murray if (targetshouldbedirectory) 1005511b41d2SMark Murray verifydir(targ); 1006511b41d2SMark Murray 1007cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 1008511b41d2SMark Murray if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode)) 1009511b41d2SMark Murray targisdir = 1; 1010511b41d2SMark Murray for (first = 1;; first = 0) { 1011511b41d2SMark Murray cp = buf; 1012d4ecd108SDag-Erling Smørgrav if (atomicio(read, remin, cp, 1) != 1) 1013511b41d2SMark Murray return; 1014511b41d2SMark Murray if (*cp++ == '\n') 1015511b41d2SMark Murray SCREWUP("unexpected <newline>"); 1016511b41d2SMark Murray do { 1017a04a10f8SKris Kennaway if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) 1018511b41d2SMark Murray SCREWUP("lost connection"); 1019511b41d2SMark Murray *cp++ = ch; 1020511b41d2SMark Murray } while (cp < &buf[sizeof(buf) - 1] && ch != '\n'); 1021511b41d2SMark Murray *cp = 0; 102221e764dfSDag-Erling Smørgrav if (verbose_mode) 1023076ad2f8SDag-Erling Smørgrav fmprintf(stderr, "Sink: %s", buf); 1024511b41d2SMark Murray 1025511b41d2SMark Murray if (buf[0] == '\01' || buf[0] == '\02') { 1026076ad2f8SDag-Erling Smørgrav if (iamremote == 0) { 1027076ad2f8SDag-Erling Smørgrav (void) snmprintf(visbuf, sizeof(visbuf), 1028076ad2f8SDag-Erling Smørgrav NULL, "%s", buf + 1); 1029cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, STDERR_FILENO, 1030076ad2f8SDag-Erling Smørgrav visbuf, strlen(visbuf)); 1031076ad2f8SDag-Erling Smørgrav } 1032511b41d2SMark Murray if (buf[0] == '\02') 1033511b41d2SMark Murray exit(1); 1034511b41d2SMark Murray ++errs; 1035511b41d2SMark Murray continue; 1036511b41d2SMark Murray } 1037511b41d2SMark Murray if (buf[0] == 'E') { 1038cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 1039511b41d2SMark Murray return; 1040511b41d2SMark Murray } 1041511b41d2SMark Murray if (ch == '\n') 1042511b41d2SMark Murray *--cp = 0; 1043511b41d2SMark Murray 1044511b41d2SMark Murray cp = buf; 1045511b41d2SMark Murray if (*cp == 'T') { 1046511b41d2SMark Murray setimes++; 1047511b41d2SMark Murray cp++; 1048e4a9863fSDag-Erling Smørgrav if (!isdigit((unsigned char)*cp)) 1049e4a9863fSDag-Erling Smørgrav SCREWUP("mtime.sec not present"); 1050e4a9863fSDag-Erling Smørgrav ull = strtoull(cp, &cp, 10); 10511e8db6e2SBrian Feldman if (!cp || *cp++ != ' ') 1052511b41d2SMark Murray SCREWUP("mtime.sec not delimited"); 10534f52dfbbSDag-Erling Smørgrav if (TYPE_OVERFLOW(time_t, ull)) 1054e4a9863fSDag-Erling Smørgrav setimes = 0; /* out of range */ 1055e4a9863fSDag-Erling Smørgrav mtime.tv_sec = ull; 10561e8db6e2SBrian Feldman mtime.tv_usec = strtol(cp, &cp, 10); 1057e4a9863fSDag-Erling Smørgrav if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 || 1058e4a9863fSDag-Erling Smørgrav mtime.tv_usec > 999999) 1059511b41d2SMark Murray SCREWUP("mtime.usec not delimited"); 1060e4a9863fSDag-Erling Smørgrav if (!isdigit((unsigned char)*cp)) 1061e4a9863fSDag-Erling Smørgrav SCREWUP("atime.sec not present"); 1062e4a9863fSDag-Erling Smørgrav ull = strtoull(cp, &cp, 10); 10631e8db6e2SBrian Feldman if (!cp || *cp++ != ' ') 1064511b41d2SMark Murray SCREWUP("atime.sec not delimited"); 10654f52dfbbSDag-Erling Smørgrav if (TYPE_OVERFLOW(time_t, ull)) 1066e4a9863fSDag-Erling Smørgrav setimes = 0; /* out of range */ 1067e4a9863fSDag-Erling Smørgrav atime.tv_sec = ull; 10681e8db6e2SBrian Feldman atime.tv_usec = strtol(cp, &cp, 10); 1069e4a9863fSDag-Erling Smørgrav if (!cp || *cp++ != '\0' || atime.tv_usec < 0 || 1070e4a9863fSDag-Erling Smørgrav atime.tv_usec > 999999) 1071511b41d2SMark Murray SCREWUP("atime.usec not delimited"); 1072cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 1073511b41d2SMark Murray continue; 1074511b41d2SMark Murray } 1075511b41d2SMark Murray if (*cp != 'C' && *cp != 'D') { 1076511b41d2SMark Murray /* 1077511b41d2SMark Murray * Check for the case "rcp remote:foo\* local:bar". 1078511b41d2SMark Murray * In this case, the line "No match." can be returned 1079511b41d2SMark Murray * by the shell before the rcp command on the remote is 1080511b41d2SMark Murray * executed so the ^Aerror_message convention isn't 1081511b41d2SMark Murray * followed. 1082511b41d2SMark Murray */ 1083511b41d2SMark Murray if (first) { 1084511b41d2SMark Murray run_err("%s", cp); 1085511b41d2SMark Murray exit(1); 1086511b41d2SMark Murray } 1087511b41d2SMark Murray SCREWUP("expected control record"); 1088511b41d2SMark Murray } 1089511b41d2SMark Murray mode = 0; 1090511b41d2SMark Murray for (++cp; cp < buf + 5; cp++) { 1091511b41d2SMark Murray if (*cp < '0' || *cp > '7') 1092511b41d2SMark Murray SCREWUP("bad mode"); 1093511b41d2SMark Murray mode = (mode << 3) | (*cp - '0'); 1094511b41d2SMark Murray } 1095511b41d2SMark Murray if (*cp++ != ' ') 1096511b41d2SMark Murray SCREWUP("mode not delimited"); 1097511b41d2SMark Murray 10984f52dfbbSDag-Erling Smørgrav if (!isdigit((unsigned char)*cp)) 10994f52dfbbSDag-Erling Smørgrav SCREWUP("size not present"); 11004f52dfbbSDag-Erling Smørgrav ull = strtoull(cp, &cp, 10); 11014f52dfbbSDag-Erling Smørgrav if (!cp || *cp++ != ' ') 1102511b41d2SMark Murray SCREWUP("size not delimited"); 11034f52dfbbSDag-Erling Smørgrav if (TYPE_OVERFLOW(off_t, ull)) 11044f52dfbbSDag-Erling Smørgrav SCREWUP("size out of range"); 11054f52dfbbSDag-Erling Smørgrav size = (off_t)ull; 11064f52dfbbSDag-Erling Smørgrav 110721e764dfSDag-Erling Smørgrav if ((strchr(cp, '/') != NULL) || (strcmp(cp, "..") == 0)) { 110821e764dfSDag-Erling Smørgrav run_err("error: unexpected filename: %s", cp); 110921e764dfSDag-Erling Smørgrav exit(1); 111021e764dfSDag-Erling Smørgrav } 1111511b41d2SMark Murray if (targisdir) { 1112511b41d2SMark Murray static char *namebuf; 1113d4ecd108SDag-Erling Smørgrav static size_t cursize; 1114511b41d2SMark Murray size_t need; 1115511b41d2SMark Murray 1116511b41d2SMark Murray need = strlen(targ) + strlen(cp) + 250; 11171e8db6e2SBrian Feldman if (need > cursize) { 1118e4a9863fSDag-Erling Smørgrav free(namebuf); 1119511b41d2SMark Murray namebuf = xmalloc(need); 11201e8db6e2SBrian Feldman cursize = need; 11211e8db6e2SBrian Feldman } 11221e8db6e2SBrian Feldman (void) snprintf(namebuf, need, "%s%s%s", targ, 1123545d5ecaSDag-Erling Smørgrav strcmp(targ, "/") ? "/" : "", cp); 1124511b41d2SMark Murray np = namebuf; 1125511b41d2SMark Murray } else 1126511b41d2SMark Murray np = targ; 1127511b41d2SMark Murray curfile = cp; 1128511b41d2SMark Murray exists = stat(np, &stb) == 0; 1129511b41d2SMark Murray if (buf[0] == 'D') { 1130511b41d2SMark Murray int mod_flag = pflag; 113121e764dfSDag-Erling Smørgrav if (!iamrecursive) 113221e764dfSDag-Erling Smørgrav SCREWUP("received directory without -r"); 1133511b41d2SMark Murray if (exists) { 1134511b41d2SMark Murray if (!S_ISDIR(stb.st_mode)) { 1135511b41d2SMark Murray errno = ENOTDIR; 1136511b41d2SMark Murray goto bad; 1137511b41d2SMark Murray } 1138511b41d2SMark Murray if (pflag) 1139511b41d2SMark Murray (void) chmod(np, mode); 1140511b41d2SMark Murray } else { 1141511b41d2SMark Murray /* Handle copying from a read-only 1142511b41d2SMark Murray directory */ 1143511b41d2SMark Murray mod_flag = 1; 1144511b41d2SMark Murray if (mkdir(np, mode | S_IRWXU) < 0) 1145511b41d2SMark Murray goto bad; 1146511b41d2SMark Murray } 11471e8db6e2SBrian Feldman vect[0] = xstrdup(np); 1148511b41d2SMark Murray sink(1, vect); 1149511b41d2SMark Murray if (setimes) { 1150511b41d2SMark Murray setimes = 0; 11511e8db6e2SBrian Feldman if (utimes(vect[0], tv) < 0) 1152511b41d2SMark Murray run_err("%s: set times: %s", 11531e8db6e2SBrian Feldman vect[0], strerror(errno)); 1154511b41d2SMark Murray } 1155511b41d2SMark Murray if (mod_flag) 11561e8db6e2SBrian Feldman (void) chmod(vect[0], mode); 1157e4a9863fSDag-Erling Smørgrav free(vect[0]); 1158511b41d2SMark Murray continue; 1159511b41d2SMark Murray } 1160511b41d2SMark Murray omode = mode; 1161e4a9863fSDag-Erling Smørgrav mode |= S_IWUSR; 1162ae1f160dSDag-Erling Smørgrav if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { 1163511b41d2SMark Murray bad: run_err("%s: %s", np, strerror(errno)); 1164511b41d2SMark Murray continue; 1165511b41d2SMark Murray } 1166cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 1167d4af9e69SDag-Erling Smørgrav if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) { 1168511b41d2SMark Murray (void) close(ofd); 1169511b41d2SMark Murray continue; 1170511b41d2SMark Murray } 1171511b41d2SMark Murray cp = bp->buf; 1172511b41d2SMark Murray wrerr = NO; 1173511b41d2SMark Murray 1174511b41d2SMark Murray statbytes = 0; 1175e73e9afaSDag-Erling Smørgrav if (showprogress) 1176e73e9afaSDag-Erling Smørgrav start_progress_meter(curfile, size, &statbytes); 1177d4af9e69SDag-Erling Smørgrav set_nonblock(remin); 1178d4af9e69SDag-Erling Smørgrav for (count = i = 0; i < size; i += bp->cnt) { 1179d4af9e69SDag-Erling Smørgrav amt = bp->cnt; 1180511b41d2SMark Murray if (i + amt > size) 1181511b41d2SMark Murray amt = size - i; 1182511b41d2SMark Murray count += amt; 1183511b41d2SMark Murray do { 11844a421b63SDag-Erling Smørgrav j = atomicio6(read, remin, cp, amt, 11854a421b63SDag-Erling Smørgrav scpio, &statbytes); 1186d4ecd108SDag-Erling Smørgrav if (j == 0) { 1187d4af9e69SDag-Erling Smørgrav run_err("%s", j != EPIPE ? 1188d4af9e69SDag-Erling Smørgrav strerror(errno) : 1189511b41d2SMark Murray "dropped connection"); 1190511b41d2SMark Murray exit(1); 1191511b41d2SMark Murray } 1192511b41d2SMark Murray amt -= j; 1193511b41d2SMark Murray cp += j; 1194511b41d2SMark Murray } while (amt > 0); 1195e73e9afaSDag-Erling Smørgrav 1196511b41d2SMark Murray if (count == bp->cnt) { 1197511b41d2SMark Murray /* Keep reading so we stay sync'd up. */ 1198511b41d2SMark Murray if (wrerr == NO) { 1199d4ecd108SDag-Erling Smørgrav if (atomicio(vwrite, ofd, bp->buf, 1200d4ecd108SDag-Erling Smørgrav count) != count) { 1201511b41d2SMark Murray wrerr = YES; 1202d4ecd108SDag-Erling Smørgrav wrerrno = errno; 1203511b41d2SMark Murray } 1204511b41d2SMark Murray } 1205511b41d2SMark Murray count = 0; 1206511b41d2SMark Murray cp = bp->buf; 1207511b41d2SMark Murray } 1208511b41d2SMark Murray } 1209d4af9e69SDag-Erling Smørgrav unset_nonblock(remin); 1210511b41d2SMark Murray if (count != 0 && wrerr == NO && 1211d4ecd108SDag-Erling Smørgrav atomicio(vwrite, ofd, bp->buf, count) != count) { 1212511b41d2SMark Murray wrerr = YES; 1213d4ecd108SDag-Erling Smørgrav wrerrno = errno; 1214511b41d2SMark Murray } 1215d4af9e69SDag-Erling Smørgrav if (wrerr == NO && (!exists || S_ISREG(stb.st_mode)) && 1216d4af9e69SDag-Erling Smørgrav ftruncate(ofd, size) != 0) { 1217511b41d2SMark Murray run_err("%s: truncate: %s", np, strerror(errno)); 1218511b41d2SMark Murray wrerr = DISPLAYED; 1219511b41d2SMark Murray } 1220511b41d2SMark Murray if (pflag) { 1221511b41d2SMark Murray if (exists || omode != mode) 122283d2307dSDag-Erling Smørgrav #ifdef HAVE_FCHMOD 122321e764dfSDag-Erling Smørgrav if (fchmod(ofd, omode)) { 122483d2307dSDag-Erling Smørgrav #else /* HAVE_FCHMOD */ 122521e764dfSDag-Erling Smørgrav if (chmod(np, omode)) { 122683d2307dSDag-Erling Smørgrav #endif /* HAVE_FCHMOD */ 1227511b41d2SMark Murray run_err("%s: set mode: %s", 1228511b41d2SMark Murray np, strerror(errno)); 122921e764dfSDag-Erling Smørgrav wrerr = DISPLAYED; 123021e764dfSDag-Erling Smørgrav } 1231511b41d2SMark Murray } else { 1232511b41d2SMark Murray if (!exists && omode != mode) 123383d2307dSDag-Erling Smørgrav #ifdef HAVE_FCHMOD 123421e764dfSDag-Erling Smørgrav if (fchmod(ofd, omode & ~mask)) { 123583d2307dSDag-Erling Smørgrav #else /* HAVE_FCHMOD */ 123621e764dfSDag-Erling Smørgrav if (chmod(np, omode & ~mask)) { 123783d2307dSDag-Erling Smørgrav #endif /* HAVE_FCHMOD */ 1238511b41d2SMark Murray run_err("%s: set mode: %s", 1239511b41d2SMark Murray np, strerror(errno)); 124021e764dfSDag-Erling Smørgrav wrerr = DISPLAYED; 124121e764dfSDag-Erling Smørgrav } 1242511b41d2SMark Murray } 1243b66f2d16SKris Kennaway if (close(ofd) == -1) { 1244b66f2d16SKris Kennaway wrerr = YES; 1245b66f2d16SKris Kennaway wrerrno = errno; 1246b66f2d16SKris Kennaway } 1247511b41d2SMark Murray (void) response(); 1248076ad2f8SDag-Erling Smørgrav if (showprogress) 1249076ad2f8SDag-Erling Smørgrav stop_progress_meter(); 1250511b41d2SMark Murray if (setimes && wrerr == NO) { 1251511b41d2SMark Murray setimes = 0; 12525b9b2fafSBrian Feldman if (utimes(np, tv) < 0) { 1253511b41d2SMark Murray run_err("%s: set times: %s", 1254511b41d2SMark Murray np, strerror(errno)); 1255511b41d2SMark Murray wrerr = DISPLAYED; 1256511b41d2SMark Murray } 1257511b41d2SMark Murray } 1258511b41d2SMark Murray switch (wrerr) { 1259511b41d2SMark Murray case YES: 1260511b41d2SMark Murray run_err("%s: %s", np, strerror(wrerrno)); 1261511b41d2SMark Murray break; 1262511b41d2SMark Murray case NO: 1263cf2b5f3bSDag-Erling Smørgrav (void) atomicio(vwrite, remout, "", 1); 1264511b41d2SMark Murray break; 1265511b41d2SMark Murray case DISPLAYED: 1266511b41d2SMark Murray break; 1267511b41d2SMark Murray } 1268511b41d2SMark Murray } 1269511b41d2SMark Murray screwup: 1270511b41d2SMark Murray run_err("protocol error: %s", why); 1271511b41d2SMark Murray exit(1); 1272511b41d2SMark Murray } 1273511b41d2SMark Murray 1274511b41d2SMark Murray int 1275ae1f160dSDag-Erling Smørgrav response(void) 1276511b41d2SMark Murray { 1277076ad2f8SDag-Erling Smørgrav char ch, *cp, resp, rbuf[2048], visbuf[2048]; 1278511b41d2SMark Murray 1279a04a10f8SKris Kennaway if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp)) 1280511b41d2SMark Murray lostconn(0); 1281511b41d2SMark Murray 1282511b41d2SMark Murray cp = rbuf; 1283511b41d2SMark Murray switch (resp) { 1284511b41d2SMark Murray case 0: /* ok */ 1285511b41d2SMark Murray return (0); 1286511b41d2SMark Murray default: 1287511b41d2SMark Murray *cp++ = resp; 1288511b41d2SMark Murray /* FALLTHROUGH */ 1289511b41d2SMark Murray case 1: /* error, followed by error msg */ 1290511b41d2SMark Murray case 2: /* fatal error, "" */ 1291511b41d2SMark Murray do { 1292a04a10f8SKris Kennaway if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch)) 1293511b41d2SMark Murray lostconn(0); 1294511b41d2SMark Murray *cp++ = ch; 1295511b41d2SMark Murray } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n'); 1296511b41d2SMark Murray 1297076ad2f8SDag-Erling Smørgrav if (!iamremote) { 1298076ad2f8SDag-Erling Smørgrav cp[-1] = '\0'; 1299076ad2f8SDag-Erling Smørgrav (void) snmprintf(visbuf, sizeof(visbuf), 1300076ad2f8SDag-Erling Smørgrav NULL, "%s\n", rbuf); 1301076ad2f8SDag-Erling Smørgrav (void) atomicio(vwrite, STDERR_FILENO, 1302076ad2f8SDag-Erling Smørgrav visbuf, strlen(visbuf)); 1303076ad2f8SDag-Erling Smørgrav } 1304511b41d2SMark Murray ++errs; 1305511b41d2SMark Murray if (resp == 1) 1306511b41d2SMark Murray return (-1); 1307511b41d2SMark Murray exit(1); 1308511b41d2SMark Murray } 1309511b41d2SMark Murray /* NOTREACHED */ 1310511b41d2SMark Murray } 1311511b41d2SMark Murray 1312511b41d2SMark Murray void 1313ae1f160dSDag-Erling Smørgrav usage(void) 1314511b41d2SMark Murray { 1315ae1f160dSDag-Erling Smørgrav (void) fprintf(stderr, 13164f52dfbbSDag-Erling Smørgrav "usage: scp [-346BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file]\n" 131747dd1d1bSDag-Erling Smørgrav " [-l limit] [-o ssh_option] [-P port] [-S program] source ... target\n"); 1318511b41d2SMark Murray exit(1); 1319511b41d2SMark Murray } 1320511b41d2SMark Murray 1321511b41d2SMark Murray void 1322511b41d2SMark Murray run_err(const char *fmt,...) 1323511b41d2SMark Murray { 1324511b41d2SMark Murray static FILE *fp; 1325511b41d2SMark Murray va_list ap; 1326511b41d2SMark Murray 1327511b41d2SMark Murray ++errs; 1328333ee039SDag-Erling Smørgrav if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) { 1329511b41d2SMark Murray (void) fprintf(fp, "%c", 0x01); 1330511b41d2SMark Murray (void) fprintf(fp, "scp: "); 1331ae1f160dSDag-Erling Smørgrav va_start(ap, fmt); 1332511b41d2SMark Murray (void) vfprintf(fp, fmt, ap); 1333ae1f160dSDag-Erling Smørgrav va_end(ap); 1334511b41d2SMark Murray (void) fprintf(fp, "\n"); 1335511b41d2SMark Murray (void) fflush(fp); 1336333ee039SDag-Erling Smørgrav } 1337511b41d2SMark Murray 1338511b41d2SMark Murray if (!iamremote) { 1339ae1f160dSDag-Erling Smørgrav va_start(ap, fmt); 1340076ad2f8SDag-Erling Smørgrav vfmprintf(stderr, fmt, ap); 1341ae1f160dSDag-Erling Smørgrav va_end(ap); 1342511b41d2SMark Murray fprintf(stderr, "\n"); 1343511b41d2SMark Murray } 1344511b41d2SMark Murray } 1345511b41d2SMark Murray 1346511b41d2SMark Murray void 1347cf2b5f3bSDag-Erling Smørgrav verifydir(char *cp) 1348511b41d2SMark Murray { 1349511b41d2SMark Murray struct stat stb; 1350511b41d2SMark Murray 1351511b41d2SMark Murray if (!stat(cp, &stb)) { 1352511b41d2SMark Murray if (S_ISDIR(stb.st_mode)) 1353511b41d2SMark Murray return; 1354511b41d2SMark Murray errno = ENOTDIR; 1355511b41d2SMark Murray } 1356511b41d2SMark Murray run_err("%s: %s", cp, strerror(errno)); 1357d4ecd108SDag-Erling Smørgrav killchild(0); 1358511b41d2SMark Murray } 1359511b41d2SMark Murray 1360511b41d2SMark Murray int 1361cf2b5f3bSDag-Erling Smørgrav okname(char *cp0) 1362511b41d2SMark Murray { 1363511b41d2SMark Murray int c; 1364511b41d2SMark Murray char *cp; 1365511b41d2SMark Murray 1366511b41d2SMark Murray cp = cp0; 1367511b41d2SMark Murray do { 1368ae1f160dSDag-Erling Smørgrav c = (int)*cp; 1369511b41d2SMark Murray if (c & 0200) 1370511b41d2SMark Murray goto bad; 1371f7167e0eSDag-Erling Smørgrav if (!isalpha(c) && !isdigit((unsigned char)c)) { 1372e73e9afaSDag-Erling Smørgrav switch (c) { 1373e73e9afaSDag-Erling Smørgrav case '\'': 1374e73e9afaSDag-Erling Smørgrav case '"': 1375e73e9afaSDag-Erling Smørgrav case '`': 1376e73e9afaSDag-Erling Smørgrav case ' ': 1377e73e9afaSDag-Erling Smørgrav case '#': 1378511b41d2SMark Murray goto bad; 1379e73e9afaSDag-Erling Smørgrav default: 1380e73e9afaSDag-Erling Smørgrav break; 1381e73e9afaSDag-Erling Smørgrav } 1382e73e9afaSDag-Erling Smørgrav } 1383511b41d2SMark Murray } while (*++cp); 1384511b41d2SMark Murray return (1); 1385511b41d2SMark Murray 1386076ad2f8SDag-Erling Smørgrav bad: fmprintf(stderr, "%s: invalid user name\n", cp0); 1387511b41d2SMark Murray return (0); 1388511b41d2SMark Murray } 1389511b41d2SMark Murray 1390511b41d2SMark Murray BUF * 1391cf2b5f3bSDag-Erling Smørgrav allocbuf(BUF *bp, int fd, int blksize) 1392511b41d2SMark Murray { 1393511b41d2SMark Murray size_t size; 139483d2307dSDag-Erling Smørgrav #ifdef HAVE_STRUCT_STAT_ST_BLKSIZE 1395511b41d2SMark Murray struct stat stb; 1396511b41d2SMark Murray 1397511b41d2SMark Murray if (fstat(fd, &stb) < 0) { 1398511b41d2SMark Murray run_err("fstat: %s", strerror(errno)); 1399511b41d2SMark Murray return (0); 1400511b41d2SMark Murray } 1401ca86bcf2SDag-Erling Smørgrav size = ROUNDUP(stb.st_blksize, blksize); 1402e73e9afaSDag-Erling Smørgrav if (size == 0) 1403e73e9afaSDag-Erling Smørgrav size = blksize; 140483d2307dSDag-Erling Smørgrav #else /* HAVE_STRUCT_STAT_ST_BLKSIZE */ 140583d2307dSDag-Erling Smørgrav size = blksize; 140683d2307dSDag-Erling Smørgrav #endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */ 1407511b41d2SMark Murray if (bp->cnt >= size) 1408511b41d2SMark Murray return (bp); 14094f52dfbbSDag-Erling Smørgrav bp->buf = xrecallocarray(bp->buf, bp->cnt, size, 1); 1410511b41d2SMark Murray bp->cnt = size; 1411511b41d2SMark Murray return (bp); 1412511b41d2SMark Murray } 1413511b41d2SMark Murray 1414511b41d2SMark Murray void 1415cf2b5f3bSDag-Erling Smørgrav lostconn(int signo) 1416511b41d2SMark Murray { 1417511b41d2SMark Murray if (!iamremote) 1418e4a9863fSDag-Erling Smørgrav (void)write(STDERR_FILENO, "lost connection\n", 16); 1419ae1f160dSDag-Erling Smørgrav if (signo) 1420ae1f160dSDag-Erling Smørgrav _exit(1); 1421ae1f160dSDag-Erling Smørgrav else 1422511b41d2SMark Murray exit(1); 1423511b41d2SMark Murray } 1424