Annotation of src/usr.bin/ssh/scp.c, Revision 1.96
1.1 deraadt 1: /*
1.38 deraadt 2: * scp - secure remote copy. This is basically patched BSD rcp which
3: * uses ssh to do the data transfer (instead of using rcmd).
1.27 markus 4: *
1.38 deraadt 5: * NOTE: This version should NOT be suid root. (This uses ssh to
6: * do the transfer and ssh has the necessary privileges.)
1.27 markus 7: *
1.38 deraadt 8: * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
9: *
10: * As far as I am concerned, the code I have written for this software
11: * can be used freely for any purpose. Any derived versions of this
12: * software must be clearly marked as such, and if the derived work is
13: * incompatible with the protocol description in the RFC file, it must be
14: * called by a name other than "ssh" or "Secure Shell".
1.39 markus 15: */
1.38 deraadt 16: /*
1.60 deraadt 17: * Copyright (c) 1999 Theo de Raadt. All rights reserved.
18: * Copyright (c) 1999 Aaron Campbell. All rights reserved.
1.27 markus 19: *
1.38 deraadt 20: * Redistribution and use in source and binary forms, with or without
21: * modification, are permitted provided that the following conditions
22: * are met:
23: * 1. Redistributions of source code must retain the above copyright
24: * notice, this list of conditions and the following disclaimer.
25: * 2. Redistributions in binary form must reproduce the above copyright
26: * notice, this list of conditions and the following disclaimer in the
27: * documentation and/or other materials provided with the distribution.
1.27 markus 28: *
1.38 deraadt 29: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
30: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
31: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
32: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
33: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
34: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
38: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39: */
1.1 deraadt 40:
41: /*
1.35 deraadt 42: * Parts from:
43: *
1.1 deraadt 44: * Copyright (c) 1983, 1990, 1992, 1993, 1995
45: * The Regents of the University of California. All rights reserved.
46: *
47: * Redistribution and use in source and binary forms, with or without
48: * modification, are permitted provided that the following conditions
49: * are met:
50: * 1. Redistributions of source code must retain the above copyright
51: * notice, this list of conditions and the following disclaimer.
52: * 2. Redistributions in binary form must reproduce the above copyright
53: * notice, this list of conditions and the following disclaimer in the
54: * documentation and/or other materials provided with the distribution.
55: * 3. All advertising materials mentioning features or use of this software
56: * must display the following acknowledgement:
57: * This product includes software developed by the University of
58: * California, Berkeley and its contributors.
59: * 4. Neither the name of the University nor the names of its contributors
60: * may be used to endorse or promote products derived from this software
61: * without specific prior written permission.
62: *
63: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
64: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
65: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
66: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
67: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
68: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
69: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
70: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
71: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
72: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
73: * SUCH DAMAGE.
74: *
75: */
76:
77: #include "includes.h"
1.96 ! markus 78: RCSID("$OpenBSD: scp.c,v 1.95 2002/12/05 11:08:35 markus Exp $");
1.1 deraadt 79:
80: #include "xmalloc.h"
1.51 markus 81: #include "atomicio.h"
1.50 markus 82: #include "pathnames.h"
1.51 markus 83: #include "log.h"
1.69 mouring 84: #include "misc.h"
1.1 deraadt 85:
1.11 aaron 86: /* For progressmeter() -- number of seconds before xfer considered "stalled" */
1.4 aaron 87: #define STALLTIME 5
1.79 stevesk 88: /* alarm() interval for updating progress meter */
89: #define PROGRESSTIME 1
1.4 aaron 90:
1.11 aaron 91: /* Visual statistics about files as they are transferred. */
92: void progressmeter(int);
93:
94: /* Returns width of the terminal (for progress meter calculations). */
95: int getttywidth(void);
1.35 deraadt 96: int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc);
1.11 aaron 97:
1.70 mouring 98: /* Struct for addargs */
99: arglist args;
1.41 markus 100:
1.11 aaron 101: /* Time a transfer started. */
1.4 aaron 102: static struct timeval start;
1.11 aaron 103:
104: /* Number of bytes of current file transferred so far. */
1.68 markus 105: volatile off_t statbytes;
1.11 aaron 106:
107: /* Total size of current file. */
1.15 markus 108: off_t totalbytes = 0;
1.11 aaron 109:
110: /* Name of current file being transferred. */
111: char *curfile;
1.4 aaron 112:
1.1 deraadt 113: /* This is set to non-zero to enable verbose mode. */
1.17 markus 114: int verbose_mode = 0;
1.1 deraadt 115:
1.6 aaron 116: /* This is set to zero if the progressmeter is not desired. */
117: int showprogress = 1;
118:
1.34 deraadt 119: /* This is the program to execute for the secured connection. ("ssh" or -S) */
1.50 markus 120: char *ssh_program = _PATH_SSH_PROGRAM;
1.34 deraadt 121:
1.92 markus 122: /* This is used to store the pid of ssh_program */
123: pid_t do_cmd_pid;
124:
1.20 markus 125: /*
126: * This function executes the given command as the specified user on the
127: * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
128: * assigns the input and output file descriptors on success.
129: */
1.1 deraadt 130:
1.27 markus 131: int
1.35 deraadt 132: do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc)
1.1 deraadt 133: {
1.18 markus 134: int pin[2], pout[2], reserved[2];
135:
136: if (verbose_mode)
1.78 deraadt 137: fprintf(stderr,
138: "Executing: program %s host %s, user %s, command %s\n",
139: ssh_program, host,
140: remuser ? remuser : "(unspecified)", cmd);
1.18 markus 141:
1.20 markus 142: /*
143: * Reserve two descriptors so that the real pipes won't get
144: * descriptors 0 and 1 because that will screw up dup2 below.
145: */
1.18 markus 146: pipe(reserved);
147:
148: /* Create a socket pair for communicating with ssh. */
149: if (pipe(pin) < 0)
150: fatal("pipe: %s", strerror(errno));
151: if (pipe(pout) < 0)
152: fatal("pipe: %s", strerror(errno));
153:
154: /* Free the reserved descriptors. */
155: close(reserved[0]);
156: close(reserved[1]);
157:
158: /* For a child to execute the command on the remote host using ssh. */
1.92 markus 159: do_cmd_pid = fork();
160: if (do_cmd_pid == 0) {
1.18 markus 161: /* Child. */
162: close(pin[1]);
163: close(pout[0]);
164: dup2(pin[0], 0);
165: dup2(pout[1], 1);
166: close(pin[0]);
167: close(pout[1]);
168:
1.41 markus 169: args.list[0] = ssh_program;
170: if (remuser != NULL)
1.70 mouring 171: addargs(&args, "-l%s", remuser);
172: addargs(&args, "%s", host);
173: addargs(&args, "%s", cmd);
1.18 markus 174:
1.41 markus 175: execvp(ssh_program, args.list);
1.34 deraadt 176: perror(ssh_program);
1.18 markus 177: exit(1);
1.92 markus 178: } else if (do_cmd_pid == -1) {
179: fatal("fork: %s", strerror(errno));
1.18 markus 180: }
181: /* Parent. Close the other side, and return the local side. */
182: close(pin[0]);
183: *fdout = pin[1];
184: close(pout[1]);
185: *fdin = pout[0];
186: return 0;
1.1 deraadt 187: }
188:
189: typedef struct {
190: int cnt;
191: char *buf;
192: } BUF;
193:
1.18 markus 194: BUF *allocbuf(BUF *, int, int);
195: void lostconn(int);
196: void nospace(void);
197: int okname(char *);
198: void run_err(const char *,...);
199: void verifydir(char *);
1.1 deraadt 200:
201: struct passwd *pwd;
1.18 markus 202: uid_t userid;
1.1 deraadt 203: int errs, remin, remout;
204: int pflag, iamremote, iamrecursive, targetshouldbedirectory;
205:
206: #define CMDNEEDS 64
207: char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
208:
1.18 markus 209: int response(void);
210: void rsource(char *, struct stat *);
211: void sink(int, char *[]);
212: void source(int, char *[]);
213: void tolocal(int, char *[]);
214: void toremote(char *, int, char *[]);
215: void usage(void);
1.1 deraadt 216:
217: int
218: main(argc, argv)
219: int argc;
220: char *argv[];
221: {
1.92 markus 222: int ch, fflag, tflag, status;
1.1 deraadt 223: char *targ;
224: extern char *optarg;
225: extern int optind;
226:
1.41 markus 227: args.list = NULL;
1.91 deraadt 228: addargs(&args, "ssh"); /* overwritten with ssh_program */
1.70 mouring 229: addargs(&args, "-x");
1.82 stevesk 230: addargs(&args, "-oForwardAgent no");
1.84 stevesk 231: addargs(&args, "-oClearAllForwardings yes");
1.41 markus 232:
1.1 deraadt 233: fflag = tflag = 0;
1.83 stevesk 234: while ((ch = getopt(argc, argv, "dfprtvBCc:i:P:q46S:o:F:")) != -1)
1.18 markus 235: switch (ch) {
236: /* User-visible flags. */
1.23 markus 237: case '4':
1.41 markus 238: case '6':
239: case 'C':
1.70 mouring 240: addargs(&args, "-%c", ch);
1.41 markus 241: break;
242: case 'o':
243: case 'c':
244: case 'i':
1.83 stevesk 245: case 'F':
1.70 mouring 246: addargs(&args, "-%c%s", ch, optarg);
1.23 markus 247: break;
1.41 markus 248: case 'P':
1.70 mouring 249: addargs(&args, "-p%s", optarg);
1.41 markus 250: break;
251: case 'B':
1.70 mouring 252: addargs(&args, "-oBatchmode yes");
1.23 markus 253: break;
1.1 deraadt 254: case 'p':
255: pflag = 1;
256: break;
257: case 'r':
258: iamrecursive = 1;
259: break;
1.34 deraadt 260: case 'S':
1.41 markus 261: ssh_program = xstrdup(optarg);
262: break;
263: case 'v':
1.72 markus 264: addargs(&args, "-v");
1.41 markus 265: verbose_mode = 1;
266: break;
267: case 'q':
268: showprogress = 0;
1.34 deraadt 269: break;
270:
1.18 markus 271: /* Server options. */
1.1 deraadt 272: case 'd':
273: targetshouldbedirectory = 1;
274: break;
1.18 markus 275: case 'f': /* "from" */
1.1 deraadt 276: iamremote = 1;
277: fflag = 1;
278: break;
1.18 markus 279: case 't': /* "to" */
1.1 deraadt 280: iamremote = 1;
281: tflag = 1;
282: break;
283: default:
284: usage();
285: }
286: argc -= optind;
287: argv += optind;
288:
289: if ((pwd = getpwuid(userid = getuid())) == NULL)
1.18 markus 290: fatal("unknown user %d", (int) userid);
1.1 deraadt 291:
1.18 markus 292: if (!isatty(STDERR_FILENO))
1.7 deraadt 293: showprogress = 0;
294:
1.1 deraadt 295: remin = STDIN_FILENO;
296: remout = STDOUT_FILENO;
297:
1.52 stevesk 298: if (fflag) {
1.18 markus 299: /* Follow "protocol", send data. */
300: (void) response();
1.1 deraadt 301: source(argc, argv);
302: exit(errs != 0);
303: }
1.18 markus 304: if (tflag) {
305: /* Receive data. */
1.1 deraadt 306: sink(argc, argv);
307: exit(errs != 0);
308: }
309: if (argc < 2)
310: usage();
311: if (argc > 2)
312: targetshouldbedirectory = 1;
313:
314: remin = remout = -1;
1.92 markus 315: do_cmd_pid = -1;
1.1 deraadt 316: /* Command to be executed on remote system using "ssh". */
1.55 deraadt 317: (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
318: verbose_mode ? " -v" : "",
1.35 deraadt 319: iamrecursive ? " -r" : "", pflag ? " -p" : "",
320: targetshouldbedirectory ? " -d" : "");
1.1 deraadt 321:
1.18 markus 322: (void) signal(SIGPIPE, lostconn);
1.1 deraadt 323:
324: if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
325: toremote(targ, argc, argv);
326: else {
1.18 markus 327: tolocal(argc, argv); /* Dest is local host. */
1.1 deraadt 328: if (targetshouldbedirectory)
329: verifydir(argv[argc - 1]);
1.92 markus 330: }
331: /*
332: * Finally check the exit status of the ssh process, if one was forked
333: * and no error has occured yet
334: */
335: if (do_cmd_pid != -1 && errs == 0) {
336: if (remin != -1)
337: (void) close(remin);
338: if (remout != -1)
339: (void) close(remout);
340: if (waitpid(do_cmd_pid, &status, 0) == -1)
341: errs = 1;
342: else {
343: if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
344: errs = 1;
345: }
1.1 deraadt 346: }
347: exit(errs != 0);
348: }
349:
350: void
351: toremote(targ, argc, argv)
352: char *targ, *argv[];
353: int argc;
354: {
355: int i, len;
356: char *bp, *host, *src, *suser, *thost, *tuser;
357:
358: *targ++ = 0;
359: if (*targ == 0)
360: targ = ".";
361:
1.94 markus 362: if ((thost = strrchr(argv[argc - 1], '@'))) {
1.1 deraadt 363: /* user@host */
364: *thost++ = 0;
365: tuser = argv[argc - 1];
366: if (*tuser == '\0')
367: tuser = NULL;
368: else if (!okname(tuser))
369: exit(1);
370: } else {
371: thost = argv[argc - 1];
372: tuser = NULL;
373: }
374:
375: for (i = 0; i < argc - 1; i++) {
376: src = colon(argv[i]);
1.18 markus 377: if (src) { /* remote to remote */
1.84 stevesk 378: static char *ssh_options =
1.89 markus 379: "-x -o'ClearAllForwardings yes'";
1.1 deraadt 380: *src++ = 0;
381: if (*src == 0)
382: src = ".";
1.94 markus 383: host = strrchr(argv[i], '@');
1.34 deraadt 384: len = strlen(ssh_program) + strlen(argv[i]) +
1.35 deraadt 385: strlen(src) + (tuser ? strlen(tuser) : 0) +
1.84 stevesk 386: strlen(thost) + strlen(targ) +
387: strlen(ssh_options) + CMDNEEDS + 20;
1.18 markus 388: bp = xmalloc(len);
1.1 deraadt 389: if (host) {
390: *host++ = 0;
1.23 markus 391: host = cleanhostname(host);
1.1 deraadt 392: suser = argv[i];
393: if (*suser == '\0')
394: suser = pwd->pw_name;
395: else if (!okname(suser))
396: continue;
1.55 deraadt 397: snprintf(bp, len,
1.84 stevesk 398: "%s%s %s -n "
1.55 deraadt 399: "-l %s %s %s %s '%s%s%s:%s'",
1.44 deraadt 400: ssh_program, verbose_mode ? " -v" : "",
1.84 stevesk 401: ssh_options, suser, host, cmd, src,
1.44 deraadt 402: tuser ? tuser : "", tuser ? "@" : "",
403: thost, targ);
1.23 markus 404: } else {
405: host = cleanhostname(argv[i]);
1.55 deraadt 406: snprintf(bp, len,
1.84 stevesk 407: "exec %s%s %s -n %s "
1.55 deraadt 408: "%s %s '%s%s%s:%s'",
1.44 deraadt 409: ssh_program, verbose_mode ? " -v" : "",
1.84 stevesk 410: ssh_options, host, cmd, src,
1.44 deraadt 411: tuser ? tuser : "", tuser ? "@" : "",
412: thost, targ);
1.23 markus 413: }
1.18 markus 414: if (verbose_mode)
415: fprintf(stderr, "Executing: %s\n", bp);
416: (void) system(bp);
417: (void) xfree(bp);
418: } else { /* local to remote */
1.1 deraadt 419: if (remin == -1) {
420: len = strlen(targ) + CMDNEEDS + 20;
1.18 markus 421: bp = xmalloc(len);
1.55 deraadt 422: (void) snprintf(bp, len, "%s -t %s", cmd, targ);
1.23 markus 423: host = cleanhostname(thost);
1.35 deraadt 424: if (do_cmd(host, tuser, bp, &remin,
425: &remout, argc) < 0)
1.18 markus 426: exit(1);
1.1 deraadt 427: if (response() < 0)
428: exit(1);
1.18 markus 429: (void) xfree(bp);
1.1 deraadt 430: }
1.18 markus 431: source(1, argv + i);
1.1 deraadt 432: }
433: }
434: }
435:
436: void
437: tolocal(argc, argv)
438: int argc;
439: char *argv[];
440: {
441: int i, len;
442: char *bp, *host, *src, *suser;
443:
444: for (i = 0; i < argc - 1; i++) {
1.18 markus 445: if (!(src = colon(argv[i]))) { /* Local to local. */
1.1 deraadt 446: len = strlen(_PATH_CP) + strlen(argv[i]) +
1.35 deraadt 447: strlen(argv[argc - 1]) + 20;
1.1 deraadt 448: bp = xmalloc(len);
1.55 deraadt 449: (void) snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP,
1.35 deraadt 450: iamrecursive ? " -r" : "", pflag ? " -p" : "",
451: argv[i], argv[argc - 1]);
1.18 markus 452: if (verbose_mode)
453: fprintf(stderr, "Executing: %s\n", bp);
1.1 deraadt 454: if (system(bp))
455: ++errs;
1.18 markus 456: (void) xfree(bp);
1.1 deraadt 457: continue;
458: }
459: *src++ = 0;
460: if (*src == 0)
461: src = ".";
1.94 markus 462: if ((host = strrchr(argv[i], '@')) == NULL) {
1.1 deraadt 463: host = argv[i];
464: suser = NULL;
465: } else {
466: *host++ = 0;
467: suser = argv[i];
468: if (*suser == '\0')
469: suser = pwd->pw_name;
470: else if (!okname(suser))
471: continue;
472: }
1.23 markus 473: host = cleanhostname(host);
1.1 deraadt 474: len = strlen(src) + CMDNEEDS + 20;
1.18 markus 475: bp = xmalloc(len);
1.55 deraadt 476: (void) snprintf(bp, len, "%s -f %s", cmd, src);
1.35 deraadt 477: if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) {
1.18 markus 478: (void) xfree(bp);
479: ++errs;
480: continue;
1.1 deraadt 481: }
1.18 markus 482: xfree(bp);
1.1 deraadt 483: sink(1, argv + argc - 1);
1.18 markus 484: (void) close(remin);
1.1 deraadt 485: remin = remout = -1;
486: }
487: }
488:
489: void
490: source(argc, argv)
491: int argc;
492: char *argv[];
493: {
494: struct stat stb;
495: static BUF buffer;
496: BUF *bp;
1.68 markus 497: off_t i, amt, result;
498: int fd, haderr, indx;
1.1 deraadt 499: char *last, *name, buf[2048];
1.65 deraadt 500: int len;
1.1 deraadt 501:
502: for (indx = 0; indx < argc; ++indx) {
1.18 markus 503: name = argv[indx];
1.11 aaron 504: statbytes = 0;
1.65 deraadt 505: len = strlen(name);
506: while (len > 1 && name[len-1] == '/')
507: name[--len] = '\0';
1.85 markus 508: if (strchr(name, '\n') != NULL) {
509: run_err("%s: skipping, filename contains a newline",
510: name);
511: goto next;
512: }
1.1 deraadt 513: if ((fd = open(name, O_RDONLY, 0)) < 0)
514: goto syserr;
515: if (fstat(fd, &stb) < 0) {
516: syserr: run_err("%s: %s", name, strerror(errno));
517: goto next;
518: }
519: switch (stb.st_mode & S_IFMT) {
520: case S_IFREG:
521: break;
522: case S_IFDIR:
523: if (iamrecursive) {
524: rsource(name, &stb);
525: goto next;
526: }
527: /* FALLTHROUGH */
528: default:
529: run_err("%s: not a regular file", name);
530: goto next;
531: }
532: if ((last = strrchr(name, '/')) == NULL)
533: last = name;
534: else
535: ++last;
1.11 aaron 536: curfile = last;
1.1 deraadt 537: if (pflag) {
538: /*
539: * Make it compatible with possible future
540: * versions expecting microseconds.
541: */
1.55 deraadt 542: (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n",
1.47 markus 543: (u_long) stb.st_mtime,
544: (u_long) stb.st_atime);
1.29 deraadt 545: (void) atomicio(write, remout, buf, strlen(buf));
1.1 deraadt 546: if (response() < 0)
547: goto next;
548: }
549: #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
1.61 markus 550: snprintf(buf, sizeof buf, "C%04o %lld %s\n",
1.47 markus 551: (u_int) (stb.st_mode & FILEMODEMASK),
1.62 markus 552: (long long)stb.st_size, last);
1.18 markus 553: if (verbose_mode) {
554: fprintf(stderr, "Sending file modes: %s", buf);
555: }
1.29 deraadt 556: (void) atomicio(write, remout, buf, strlen(buf));
1.1 deraadt 557: if (response() < 0)
558: goto next;
559: if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) {
1.18 markus 560: next: (void) close(fd);
1.1 deraadt 561: continue;
562: }
1.12 aaron 563: if (showprogress) {
564: totalbytes = stb.st_size;
1.6 aaron 565: progressmeter(-1);
1.12 aaron 566: }
1.1 deraadt 567: /* Keep writing after an error so that we stay sync'd up. */
568: for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
569: amt = bp->cnt;
570: if (i + amt > stb.st_size)
571: amt = stb.st_size - i;
572: if (!haderr) {
1.30 deraadt 573: result = atomicio(read, fd, bp->buf, amt);
1.1 deraadt 574: if (result != amt)
575: haderr = result >= 0 ? EIO : errno;
576: }
577: if (haderr)
1.29 deraadt 578: (void) atomicio(write, remout, bp->buf, amt);
1.1 deraadt 579: else {
1.29 deraadt 580: result = atomicio(write, remout, bp->buf, amt);
1.1 deraadt 581: if (result != amt)
582: haderr = result >= 0 ? EIO : errno;
1.4 aaron 583: statbytes += result;
1.1 deraadt 584: }
585: }
1.18 markus 586: if (showprogress)
1.6 aaron 587: progressmeter(1);
1.4 aaron 588:
1.1 deraadt 589: if (close(fd) < 0 && !haderr)
590: haderr = errno;
591: if (!haderr)
1.29 deraadt 592: (void) atomicio(write, remout, "", 1);
1.1 deraadt 593: else
594: run_err("%s: %s", name, strerror(haderr));
1.18 markus 595: (void) response();
1.1 deraadt 596: }
597: }
598:
599: void
600: rsource(name, statp)
601: char *name;
602: struct stat *statp;
603: {
604: DIR *dirp;
605: struct dirent *dp;
606: char *last, *vect[1], path[1100];
607:
608: if (!(dirp = opendir(name))) {
609: run_err("%s: %s", name, strerror(errno));
610: return;
611: }
612: last = strrchr(name, '/');
613: if (last == 0)
614: last = name;
615: else
616: last++;
617: if (pflag) {
1.55 deraadt 618: (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n",
1.47 markus 619: (u_long) statp->st_mtime,
620: (u_long) statp->st_atime);
1.29 deraadt 621: (void) atomicio(write, remout, path, strlen(path));
1.1 deraadt 622: if (response() < 0) {
623: closedir(dirp);
624: return;
625: }
626: }
1.55 deraadt 627: (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
1.47 markus 628: (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
1.18 markus 629: if (verbose_mode)
630: fprintf(stderr, "Entering directory: %s", path);
1.29 deraadt 631: (void) atomicio(write, remout, path, strlen(path));
1.1 deraadt 632: if (response() < 0) {
633: closedir(dirp);
634: return;
635: }
1.63 stevesk 636: while ((dp = readdir(dirp)) != NULL) {
1.1 deraadt 637: if (dp->d_ino == 0)
638: continue;
639: if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
640: continue;
641: if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
642: run_err("%s/%s: name too long", name, dp->d_name);
643: continue;
644: }
1.55 deraadt 645: (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
1.1 deraadt 646: vect[0] = path;
647: source(1, vect);
648: }
1.18 markus 649: (void) closedir(dirp);
1.29 deraadt 650: (void) atomicio(write, remout, "E\n", 2);
1.18 markus 651: (void) response();
1.1 deraadt 652: }
653:
654: void
655: sink(argc, argv)
656: int argc;
657: char *argv[];
658: {
659: static BUF buffer;
660: struct stat stb;
1.18 markus 661: enum {
662: YES, NO, DISPLAYED
663: } wrerr;
1.1 deraadt 664: BUF *bp;
665: off_t i, j;
666: int amt, count, exists, first, mask, mode, ofd, omode;
1.36 deraadt 667: off_t size;
668: int setimes, targisdir, wrerrno = 0;
1.1 deraadt 669: char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
1.40 markus 670: struct timeval tv[2];
1.1 deraadt 671:
1.66 stevesk 672: #define atime tv[0]
673: #define mtime tv[1]
1.75 deraadt 674: #define SCREWUP(str) do { why = str; goto screwup; } while (0)
1.1 deraadt 675:
676: setimes = targisdir = 0;
677: mask = umask(0);
678: if (!pflag)
1.18 markus 679: (void) umask(mask);
1.1 deraadt 680: if (argc != 1) {
681: run_err("ambiguous target");
682: exit(1);
683: }
684: targ = *argv;
685: if (targetshouldbedirectory)
686: verifydir(targ);
1.18 markus 687:
1.29 deraadt 688: (void) atomicio(write, remout, "", 1);
1.1 deraadt 689: if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
690: targisdir = 1;
691: for (first = 1;; first = 0) {
692: cp = buf;
1.30 deraadt 693: if (atomicio(read, remin, cp, 1) <= 0)
1.1 deraadt 694: return;
695: if (*cp++ == '\n')
696: SCREWUP("unexpected <newline>");
697: do {
1.30 deraadt 698: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 699: SCREWUP("lost connection");
700: *cp++ = ch;
701: } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
702: *cp = 0;
703:
704: if (buf[0] == '\01' || buf[0] == '\02') {
705: if (iamremote == 0)
1.29 deraadt 706: (void) atomicio(write, STDERR_FILENO,
1.44 deraadt 707: buf + 1, strlen(buf + 1));
1.1 deraadt 708: if (buf[0] == '\02')
709: exit(1);
710: ++errs;
711: continue;
712: }
713: if (buf[0] == 'E') {
1.29 deraadt 714: (void) atomicio(write, remout, "", 1);
1.1 deraadt 715: return;
716: }
717: if (ch == '\n')
718: *--cp = 0;
719:
720: cp = buf;
721: if (*cp == 'T') {
722: setimes++;
723: cp++;
1.66 stevesk 724: mtime.tv_sec = strtol(cp, &cp, 10);
725: if (!cp || *cp++ != ' ')
1.1 deraadt 726: SCREWUP("mtime.sec not delimited");
1.66 stevesk 727: mtime.tv_usec = strtol(cp, &cp, 10);
728: if (!cp || *cp++ != ' ')
1.1 deraadt 729: SCREWUP("mtime.usec not delimited");
1.66 stevesk 730: atime.tv_sec = strtol(cp, &cp, 10);
731: if (!cp || *cp++ != ' ')
1.1 deraadt 732: SCREWUP("atime.sec not delimited");
1.66 stevesk 733: atime.tv_usec = strtol(cp, &cp, 10);
734: if (!cp || *cp++ != '\0')
1.1 deraadt 735: SCREWUP("atime.usec not delimited");
1.29 deraadt 736: (void) atomicio(write, remout, "", 1);
1.1 deraadt 737: continue;
738: }
739: if (*cp != 'C' && *cp != 'D') {
740: /*
741: * Check for the case "rcp remote:foo\* local:bar".
742: * In this case, the line "No match." can be returned
743: * by the shell before the rcp command on the remote is
744: * executed so the ^Aerror_message convention isn't
745: * followed.
746: */
747: if (first) {
748: run_err("%s", cp);
749: exit(1);
750: }
751: SCREWUP("expected control record");
752: }
753: mode = 0;
754: for (++cp; cp < buf + 5; cp++) {
755: if (*cp < '0' || *cp > '7')
756: SCREWUP("bad mode");
757: mode = (mode << 3) | (*cp - '0');
758: }
759: if (*cp++ != ' ')
760: SCREWUP("mode not delimited");
761:
1.63 stevesk 762: for (size = 0; isdigit(*cp);)
1.1 deraadt 763: size = size * 10 + (*cp++ - '0');
764: if (*cp++ != ' ')
765: SCREWUP("size not delimited");
766: if (targisdir) {
767: static char *namebuf;
768: static int cursize;
769: size_t need;
770:
771: need = strlen(targ) + strlen(cp) + 250;
1.55 deraadt 772: if (need > cursize) {
1.58 danh 773: if (namebuf)
774: xfree(namebuf);
1.18 markus 775: namebuf = xmalloc(need);
1.55 deraadt 776: cursize = need;
777: }
778: (void) snprintf(namebuf, need, "%s%s%s", targ,
1.88 mouring 779: strcmp(targ, "/") ? "/" : "", cp);
1.1 deraadt 780: np = namebuf;
781: } else
782: np = targ;
1.12 aaron 783: curfile = cp;
1.1 deraadt 784: exists = stat(np, &stb) == 0;
785: if (buf[0] == 'D') {
786: int mod_flag = pflag;
787: if (exists) {
788: if (!S_ISDIR(stb.st_mode)) {
789: errno = ENOTDIR;
790: goto bad;
791: }
792: if (pflag)
1.18 markus 793: (void) chmod(np, mode);
1.1 deraadt 794: } else {
1.18 markus 795: /* Handle copying from a read-only
796: directory */
1.1 deraadt 797: mod_flag = 1;
798: if (mkdir(np, mode | S_IRWXU) < 0)
799: goto bad;
800: }
1.58 danh 801: vect[0] = xstrdup(np);
1.1 deraadt 802: sink(1, vect);
803: if (setimes) {
804: setimes = 0;
1.59 deraadt 805: if (utimes(vect[0], tv) < 0)
1.18 markus 806: run_err("%s: set times: %s",
1.59 deraadt 807: vect[0], strerror(errno));
1.1 deraadt 808: }
809: if (mod_flag)
1.59 deraadt 810: (void) chmod(vect[0], mode);
811: if (vect[0])
812: xfree(vect[0]);
1.1 deraadt 813: continue;
814: }
815: omode = mode;
816: mode |= S_IWRITE;
1.71 markus 817: if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
1.1 deraadt 818: bad: run_err("%s: %s", np, strerror(errno));
819: continue;
820: }
1.29 deraadt 821: (void) atomicio(write, remout, "", 1);
1.1 deraadt 822: if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) {
1.18 markus 823: (void) close(ofd);
1.1 deraadt 824: continue;
825: }
826: cp = bp->buf;
827: wrerr = NO;
1.7 deraadt 828:
829: if (showprogress) {
830: totalbytes = size;
831: progressmeter(-1);
832: }
1.12 aaron 833: statbytes = 0;
1.1 deraadt 834: for (count = i = 0; i < size; i += 4096) {
835: amt = 4096;
836: if (i + amt > size)
837: amt = size - i;
838: count += amt;
839: do {
1.43 markus 840: j = read(remin, cp, amt);
1.78 deraadt 841: if (j == -1 && (errno == EINTR ||
842: errno == EAGAIN)) {
1.43 markus 843: continue;
844: } else if (j <= 0) {
1.1 deraadt 845: run_err("%s", j ? strerror(errno) :
1.63 stevesk 846: "dropped connection");
1.1 deraadt 847: exit(1);
848: }
849: amt -= j;
850: cp += j;
1.18 markus 851: statbytes += j;
1.1 deraadt 852: } while (amt > 0);
853: if (count == bp->cnt) {
854: /* Keep reading so we stay sync'd up. */
855: if (wrerr == NO) {
1.30 deraadt 856: j = atomicio(write, ofd, bp->buf, count);
1.1 deraadt 857: if (j != count) {
858: wrerr = YES;
1.18 markus 859: wrerrno = j >= 0 ? EIO : errno;
1.1 deraadt 860: }
861: }
862: count = 0;
863: cp = bp->buf;
864: }
865: }
1.7 deraadt 866: if (showprogress)
867: progressmeter(1);
1.1 deraadt 868: if (count != 0 && wrerr == NO &&
1.30 deraadt 869: (j = atomicio(write, ofd, bp->buf, count)) != count) {
1.1 deraadt 870: wrerr = YES;
1.18 markus 871: wrerrno = j >= 0 ? EIO : errno;
1.1 deraadt 872: }
873: if (ftruncate(ofd, size)) {
874: run_err("%s: truncate: %s", np, strerror(errno));
875: wrerr = DISPLAYED;
876: }
877: if (pflag) {
878: if (exists || omode != mode)
879: if (fchmod(ofd, omode))
880: run_err("%s: set mode: %s",
1.63 stevesk 881: np, strerror(errno));
1.1 deraadt 882: } else {
883: if (!exists && omode != mode)
884: if (fchmod(ofd, omode & ~mask))
885: run_err("%s: set mode: %s",
1.63 stevesk 886: np, strerror(errno));
1.1 deraadt 887: }
1.33 provos 888: if (close(ofd) == -1) {
889: wrerr = YES;
890: wrerrno = errno;
891: }
1.18 markus 892: (void) response();
1.1 deraadt 893: if (setimes && wrerr == NO) {
894: setimes = 0;
1.40 markus 895: if (utimes(np, tv) < 0) {
1.1 deraadt 896: run_err("%s: set times: %s",
1.63 stevesk 897: np, strerror(errno));
1.1 deraadt 898: wrerr = DISPLAYED;
899: }
900: }
1.18 markus 901: switch (wrerr) {
1.1 deraadt 902: case YES:
903: run_err("%s: %s", np, strerror(wrerrno));
904: break;
905: case NO:
1.29 deraadt 906: (void) atomicio(write, remout, "", 1);
1.1 deraadt 907: break;
908: case DISPLAYED:
909: break;
910: }
911: }
912: screwup:
913: run_err("protocol error: %s", why);
914: exit(1);
915: }
916:
917: int
1.86 itojun 918: response(void)
1.1 deraadt 919: {
920: char ch, *cp, resp, rbuf[2048];
921:
1.30 deraadt 922: if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
1.1 deraadt 923: lostconn(0);
924:
925: cp = rbuf;
1.18 markus 926: switch (resp) {
927: case 0: /* ok */
1.1 deraadt 928: return (0);
929: default:
930: *cp++ = resp;
931: /* FALLTHROUGH */
1.18 markus 932: case 1: /* error, followed by error msg */
933: case 2: /* fatal error, "" */
1.1 deraadt 934: do {
1.30 deraadt 935: if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
1.1 deraadt 936: lostconn(0);
937: *cp++ = ch;
938: } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
939:
940: if (!iamremote)
1.29 deraadt 941: (void) atomicio(write, STDERR_FILENO, rbuf, cp - rbuf);
1.1 deraadt 942: ++errs;
943: if (resp == 1)
944: return (-1);
945: exit(1);
946: }
947: /* NOTREACHED */
948: }
949:
950: void
1.86 itojun 951: usage(void)
1.1 deraadt 952: {
1.83 stevesk 953: (void) fprintf(stderr,
1.90 deraadt 954: "usage: scp [-pqrvBC46] [-F config] [-S program] [-P port]\n"
955: " [-c cipher] [-i identity] [-o option]\n"
956: " [[user@]host1:]file1 [...] [[user@]host2:]file2\n");
1.1 deraadt 957: exit(1);
958: }
959:
960: void
1.18 markus 961: run_err(const char *fmt,...)
1.1 deraadt 962: {
963: static FILE *fp;
964: va_list ap;
965:
966: ++errs;
967: if (fp == NULL && !(fp = fdopen(remout, "w")))
968: return;
1.18 markus 969: (void) fprintf(fp, "%c", 0x01);
970: (void) fprintf(fp, "scp: ");
1.73 markus 971: va_start(ap, fmt);
1.18 markus 972: (void) vfprintf(fp, fmt, ap);
1.73 markus 973: va_end(ap);
1.18 markus 974: (void) fprintf(fp, "\n");
975: (void) fflush(fp);
976:
977: if (!iamremote) {
1.73 markus 978: va_start(ap, fmt);
1.18 markus 979: vfprintf(stderr, fmt, ap);
1.73 markus 980: va_end(ap);
1.18 markus 981: fprintf(stderr, "\n");
982: }
1.1 deraadt 983: }
984:
985: void
986: verifydir(cp)
987: char *cp;
988: {
989: struct stat stb;
990:
991: if (!stat(cp, &stb)) {
992: if (S_ISDIR(stb.st_mode))
993: return;
994: errno = ENOTDIR;
995: }
996: run_err("%s: %s", cp, strerror(errno));
997: exit(1);
998: }
999:
1000: int
1001: okname(cp0)
1002: char *cp0;
1003: {
1004: int c;
1005: char *cp;
1006:
1007: cp = cp0;
1008: do {
1.75 deraadt 1009: c = (int)*cp;
1.1 deraadt 1010: if (c & 0200)
1011: goto bad;
1.46 markus 1012: if (!isalpha(c) && !isdigit(c) &&
1.94 markus 1013: c != '@' && c != '_' && c != '-' && c != '.' && c != '+')
1.1 deraadt 1014: goto bad;
1015: } while (*++cp);
1016: return (1);
1017:
1.25 markus 1018: bad: fprintf(stderr, "%s: invalid user name\n", cp0);
1.1 deraadt 1019: return (0);
1020: }
1021:
1022: BUF *
1023: allocbuf(bp, fd, blksize)
1024: BUF *bp;
1025: int fd, blksize;
1026: {
1027: size_t size;
1028: struct stat stb;
1029:
1030: if (fstat(fd, &stb) < 0) {
1031: run_err("fstat: %s", strerror(errno));
1032: return (0);
1033: }
1.95 markus 1034: size = roundup(stb.st_blksize, blksize);
1035: if (size == 0)
1.18 markus 1036: size = blksize;
1.1 deraadt 1037: if (bp->cnt >= size)
1038: return (bp);
1.18 markus 1039: if (bp->buf == NULL)
1040: bp->buf = xmalloc(size);
1041: else
1042: bp->buf = xrealloc(bp->buf, size);
1.81 markus 1043: memset(bp->buf, 0, size);
1.1 deraadt 1044: bp->cnt = size;
1045: return (bp);
1046: }
1047:
1048: void
1049: lostconn(signo)
1050: int signo;
1051: {
1052: if (!iamremote)
1.74 markus 1053: write(STDERR_FILENO, "lost connection\n", 16);
1054: if (signo)
1055: _exit(1);
1056: else
1057: exit(1);
1.1 deraadt 1058: }
1.4 aaron 1059:
1.76 itojun 1060: static void
1.26 markus 1061: updateprogressmeter(int ignore)
1.4 aaron 1062: {
1.9 deraadt 1063: int save_errno = errno;
1064:
1.4 aaron 1065: progressmeter(0);
1.79 stevesk 1066: signal(SIGALRM, updateprogressmeter);
1067: alarm(PROGRESSTIME);
1.9 deraadt 1068: errno = save_errno;
1.4 aaron 1069: }
1070:
1.76 itojun 1071: static int
1.56 itojun 1072: foregroundproc(void)
1.16 deraadt 1073: {
1074: static pid_t pgrp = -1;
1075: int ctty_pgrp;
1076:
1077: if (pgrp == -1)
1078: pgrp = getpgrp();
1079:
1.18 markus 1080: return ((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
1081: ctty_pgrp == pgrp));
1.16 deraadt 1082: }
1083:
1.8 deraadt 1084: void
1085: progressmeter(int flag)
1.4 aaron 1086: {
1.96 ! markus 1087: static const char spaces[] = " "
! 1088: " "
! 1089: " "
! 1090: " "
! 1091: " "
! 1092: " ";
1.4 aaron 1093: static const char prefixes[] = " KMGTP";
1094: static struct timeval lastupdate;
1.11 aaron 1095: static off_t lastsize;
1.4 aaron 1096: struct timeval now, td, wait;
1.96 ! markus 1097: off_t cursize, abbrevsize, bytespersec;
1.4 aaron 1098: double elapsed;
1.96 ! markus 1099: int ratio, remaining, i, ai, bi, nspaces;
1.87 deraadt 1100: char buf[512];
1.4 aaron 1101:
1102: if (flag == -1) {
1.18 markus 1103: (void) gettimeofday(&start, (struct timezone *) 0);
1.4 aaron 1104: lastupdate = start;
1.11 aaron 1105: lastsize = 0;
1.18 markus 1106: }
1.16 deraadt 1107: if (foregroundproc() == 0)
1108: return;
1109:
1.18 markus 1110: (void) gettimeofday(&now, (struct timezone *) 0);
1.4 aaron 1111: cursize = statbytes;
1.13 aaron 1112: if (totalbytes != 0) {
1.21 markus 1113: ratio = 100.0 * cursize / totalbytes;
1.13 aaron 1114: ratio = MAX(ratio, 0);
1115: ratio = MIN(ratio, 100);
1.18 markus 1116: } else
1.13 aaron 1117: ratio = 100;
1118:
1.4 aaron 1119: abbrevsize = cursize;
1.96 ! markus 1120: for (ai = 0; abbrevsize >= 10000 && ai < sizeof(prefixes); ai++)
1.4 aaron 1121: abbrevsize >>= 10;
1122:
1123: timersub(&now, &lastupdate, &wait);
1124: if (cursize > lastsize) {
1125: lastupdate = now;
1126: lastsize = cursize;
1127: wait.tv_sec = 0;
1128: }
1129: timersub(&now, &start, &td);
1.6 aaron 1130: elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
1.96 ! markus 1131:
! 1132: bytespersec = 0;
! 1133: if (statbytes > 0) {
! 1134: bytespersec = statbytes;
! 1135: if (elapsed > 0.0)
! 1136: bytespersec /= elapsed;
! 1137: }
! 1138: for (bi = 1; bytespersec >= 1024000 && bi < sizeof(prefixes); bi++)
! 1139: bytespersec >>= 10;
! 1140:
! 1141: nspaces = MIN(getttywidth() - 79, sizeof(spaces) - 1);
! 1142:
! 1143: snprintf(buf, sizeof(buf),
! 1144: "\r%-45.45s%.*s%3d%% %4lld%c%c %3lld.%01d%cB/s",
! 1145: curfile,
! 1146: nspaces,
! 1147: spaces,
! 1148: ratio,
! 1149: (long long)abbrevsize,
! 1150: prefixes[ai],
! 1151: ai == 0 ? ' ' : 'B',
! 1152: (long long)(bytespersec / 1024),
! 1153: (int)((bytespersec % 1024) * 10 / 1024),
! 1154: prefixes[bi]
! 1155: );
1.4 aaron 1156:
1.44 deraadt 1157: if (flag != 1 &&
1158: (statbytes <= 0 || elapsed <= 0.0 || cursize > totalbytes)) {
1.4 aaron 1159: snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1.44 deraadt 1160: " --:-- ETA");
1.4 aaron 1161: } else if (wait.tv_sec >= STALLTIME) {
1162: snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1.44 deraadt 1163: " - stalled -");
1.4 aaron 1164: } else {
1.28 deraadt 1165: if (flag != 1)
1.44 deraadt 1166: remaining = (int)(totalbytes / (statbytes / elapsed) -
1167: elapsed);
1.28 deraadt 1168: else
1169: remaining = elapsed;
1170:
1.14 aaron 1171: i = remaining / 3600;
1.4 aaron 1172: if (i)
1173: snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1.35 deraadt 1174: "%2d:", i);
1.4 aaron 1175: else
1176: snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1.35 deraadt 1177: " ");
1.4 aaron 1178: i = remaining % 3600;
1179: snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1.35 deraadt 1180: "%02d:%02d%s", i / 60, i % 60,
1181: (flag != 1) ? " ETA" : " ");
1.4 aaron 1182: }
1.10 deraadt 1183: atomicio(write, fileno(stdout), buf, strlen(buf));
1.4 aaron 1184:
1185: if (flag == -1) {
1.26 markus 1186: signal(SIGALRM, updateprogressmeter);
1.79 stevesk 1187: alarm(PROGRESSTIME);
1.4 aaron 1188: } else if (flag == 1) {
1.79 stevesk 1189: alarm(0);
1.29 deraadt 1190: atomicio(write, fileno(stdout), "\n", 1);
1.12 aaron 1191: statbytes = 0;
1.4 aaron 1192: }
1193: }
1194:
1.8 deraadt 1195: int
1196: getttywidth(void)
1.4 aaron 1197: {
1198: struct winsize winsize;
1199:
1200: if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
1.18 markus 1201: return (winsize.ws_col ? winsize.ws_col : 80);
1.4 aaron 1202: else
1.18 markus 1203: return (80);
1.4 aaron 1204: }
![[BACK]](/icons/back.gif){kind=icon}
Return to scp.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / ssh