2 * scp - secure remote copy. This is basically patched BSD rcp which
3 * uses ssh to do the data transfer (instead of using rcmd).
5 * NOTE: This version should NOT be suid root. (This uses ssh to
6 * do the transfer and ssh has the necessary privileges.)
8 * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
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".
17 * Copyright (c) 1999 Theo de Raadt. All rights reserved.
18 * Copyright (c) 1999 Aaron Campbell. All rights reserved.
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
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.
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.
44 * Copyright (c) 1983, 1990, 1992, 1993, 1995
45 * The Regents of the University of California. All rights reserved.
47 * Redistribution and use in source and binary forms, with or without
48 * modification, are permitted provided that the following conditions
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.
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
78 RCSID("$OpenBSD: scp.c,v 1.84 2001/09/19 19:24:19 stevesk Exp $");
82 #include "pathnames.h"
86 #ifdef HAVE___PROGNAME
87 extern char *__progname;
92 /* For progressmeter() -- number of seconds before xfer considered "stalled" */
94 /* alarm() interval for updating progress meter */
95 #define PROGRESSTIME 1
97 /* Progress meter bar */
99 "************************************************************"\
100 "************************************************************"\
101 "************************************************************"\
102 "************************************************************"
103 #define MAX_BARLENGTH (sizeof(BAR) - 1)
105 /* Visual statistics about files as they are transferred. */
106 void progressmeter(int);
108 /* Returns width of the terminal (for progress meter calculations). */
109 int getttywidth(void);
110 int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc);
112 /* Struct for addargs */
115 /* Time a transfer started. */
116 static struct timeval start;
118 /* Number of bytes of current file transferred so far. */
119 volatile off_t statbytes;
121 /* Total size of current file. */
122 off_t totalbytes = 0;
124 /* Name of current file being transferred. */
127 /* This is set to non-zero to enable verbose mode. */
128 int verbose_mode = 0;
130 /* This is set to zero if the progressmeter is not desired. */
131 int showprogress = 1;
133 /* This is the program to execute for the secured connection. ("ssh" or -S) */
134 char *ssh_program = _PATH_SSH_PROGRAM;
137 * This function executes the given command as the specified user on the
138 * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
139 * assigns the input and output file descriptors on success.
143 do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc)
145 int pin[2], pout[2], reserved[2];
149 "Executing: program %s host %s, user %s, command %s\n",
151 remuser ? remuser : "(unspecified)", cmd);
154 * Reserve two descriptors so that the real pipes won't get
155 * descriptors 0 and 1 because that will screw up dup2 below.
159 /* Create a socket pair for communicating with ssh. */
161 fatal("pipe: %s", strerror(errno));
163 fatal("pipe: %s", strerror(errno));
165 /* Free the reserved descriptors. */
169 /* For a child to execute the command on the remote host using ssh. */
179 args.list[0] = ssh_program;
181 addargs(&args, "-l%s", remuser);
182 addargs(&args, "%s", host);
183 addargs(&args, "%s", cmd);
185 execvp(ssh_program, args.list);
189 /* Parent. Close the other side, and return the local side. */
202 BUF *allocbuf(BUF *, int, int);
206 void run_err(const char *,...);
207 void verifydir(char *);
211 int errs, remin, remout;
212 int pflag, iamremote, iamrecursive, targetshouldbedirectory;
215 char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
218 void rsource(char *, struct stat *);
219 void sink(int, char *[]);
220 void source(int, char *[]);
221 void tolocal(int, char *[]);
222 void toremote(char *, int, char *[]);
230 int ch, fflag, tflag;
235 __progname = get_progname(argv[0]);
238 addargs(&args, "ssh"); /* overwritten with ssh_program */
239 addargs(&args, "-x");
240 addargs(&args, "-oForwardAgent no");
241 addargs(&args, "-oFallBackToRsh no");
242 addargs(&args, "-oClearAllForwardings yes");
245 while ((ch = getopt(argc, argv, "dfprtvBCc:i:P:q46S:o:F:")) != -1)
247 /* User-visible flags. */
251 addargs(&args, "-%c", ch);
257 addargs(&args, "-%c%s", ch, optarg);
260 addargs(&args, "-p%s", optarg);
263 addargs(&args, "-oBatchmode yes");
272 ssh_program = xstrdup(optarg);
275 addargs(&args, "-v");
282 /* Server options. */
284 targetshouldbedirectory = 1;
286 case 'f': /* "from" */
294 setmode(0, O_BINARY);
303 if ((pwd = getpwuid(userid = getuid())) == NULL)
304 fatal("unknown user %d", (int) userid);
306 if (!isatty(STDERR_FILENO))
309 remin = STDIN_FILENO;
310 remout = STDOUT_FILENO;
313 /* Follow "protocol", send data. */
326 targetshouldbedirectory = 1;
329 /* Command to be executed on remote system using "ssh". */
330 (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
331 verbose_mode ? " -v" : "",
332 iamrecursive ? " -r" : "", pflag ? " -p" : "",
333 targetshouldbedirectory ? " -d" : "");
335 (void) signal(SIGPIPE, lostconn);
337 if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
338 toremote(targ, argc, argv);
340 tolocal(argc, argv); /* Dest is local host. */
341 if (targetshouldbedirectory)
342 verifydir(argv[argc - 1]);
348 toremote(targ, argc, argv)
353 char *bp, *host, *src, *suser, *thost, *tuser;
359 if ((thost = strchr(argv[argc - 1], '@'))) {
362 tuser = argv[argc - 1];
365 else if (!okname(tuser))
368 thost = argv[argc - 1];
372 for (i = 0; i < argc - 1; i++) {
373 src = colon(argv[i]);
374 if (src) { /* remote to remote */
375 static char *ssh_options =
376 "-x -o'FallBackToRsh no' "
377 "-o'ClearAllForwardings yes'";
381 host = strchr(argv[i], '@');
382 len = strlen(ssh_program) + strlen(argv[i]) +
383 strlen(src) + (tuser ? strlen(tuser) : 0) +
384 strlen(thost) + strlen(targ) +
385 strlen(ssh_options) + CMDNEEDS + 20;
389 host = cleanhostname(host);
392 suser = pwd->pw_name;
393 else if (!okname(suser))
397 "-l %s %s %s %s '%s%s%s:%s'",
398 ssh_program, verbose_mode ? " -v" : "",
399 ssh_options, suser, host, cmd, src,
400 tuser ? tuser : "", tuser ? "@" : "",
403 host = cleanhostname(argv[i]);
405 "exec %s%s %s -n %s "
407 ssh_program, verbose_mode ? " -v" : "",
408 ssh_options, host, cmd, src,
409 tuser ? tuser : "", tuser ? "@" : "",
413 fprintf(stderr, "Executing: %s\n", bp);
416 } else { /* local to remote */
418 len = strlen(targ) + CMDNEEDS + 20;
420 (void) snprintf(bp, len, "%s -t %s", cmd, targ);
421 host = cleanhostname(thost);
422 if (do_cmd(host, tuser, bp, &remin,
440 char *bp, *host, *src, *suser;
442 for (i = 0; i < argc - 1; i++) {
443 if (!(src = colon(argv[i]))) { /* Local to local. */
444 len = strlen(_PATH_CP) + strlen(argv[i]) +
445 strlen(argv[argc - 1]) + 20;
447 (void) snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP,
448 iamrecursive ? " -r" : "", pflag ? " -p" : "",
449 argv[i], argv[argc - 1]);
451 fprintf(stderr, "Executing: %s\n", bp);
460 if ((host = strchr(argv[i], '@')) == NULL) {
467 suser = pwd->pw_name;
468 else if (!okname(suser))
471 host = cleanhostname(host);
472 len = strlen(src) + CMDNEEDS + 20;
474 (void) snprintf(bp, len, "%s -f %s", cmd, src);
475 if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) {
481 sink(1, argv + argc - 1);
495 off_t i, amt, result;
496 int fd, haderr, indx;
497 char *last, *name, buf[2048];
500 for (indx = 0; indx < argc; ++indx) {
504 while (len > 1 && name[len-1] == '/')
506 if ((fd = open(name, O_RDONLY, 0)) < 0)
508 if (fstat(fd, &stb) < 0) {
509 syserr: run_err("%s: %s", name, strerror(errno));
512 switch (stb.st_mode & S_IFMT) {
522 run_err("%s: not a regular file", name);
525 if ((last = strrchr(name, '/')) == NULL)
532 * Make it compatible with possible future
533 * versions expecting microseconds.
535 (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n",
536 (u_long) stb.st_mtime,
537 (u_long) stb.st_atime);
538 (void) atomicio(write, remout, buf, strlen(buf));
542 #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
543 #ifdef HAVE_LONG_LONG_INT
544 snprintf(buf, sizeof buf, "C%04o %lld %s\n",
545 (u_int) (stb.st_mode & FILEMODEMASK),
546 (long long) stb.st_size, last);
548 /* XXX: Handle integer overflow? */
549 snprintf(buf, sizeof buf, "C%04o %lu %s\n",
550 (u_int) (stb.st_mode & FILEMODEMASK),
551 (u_long) stb.st_size, last);
555 fprintf(stderr, "Sending file modes: %s", buf);
558 (void) atomicio(write, remout, buf, strlen(buf));
561 if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) {
562 next: (void) close(fd);
566 totalbytes = stb.st_size;
569 /* Keep writing after an error so that we stay sync'd up. */
570 for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
572 if (i + amt > stb.st_size)
573 amt = stb.st_size - i;
575 result = atomicio(read, fd, bp->buf, amt);
577 haderr = result >= 0 ? EIO : errno;
580 (void) atomicio(write, remout, bp->buf, amt);
582 result = atomicio(write, remout, bp->buf, amt);
584 haderr = result >= 0 ? EIO : errno;
591 if (close(fd) < 0 && !haderr)
594 (void) atomicio(write, remout, "", 1);
596 run_err("%s: %s", name, strerror(haderr));
608 char *last, *vect[1], path[1100];
610 if (!(dirp = opendir(name))) {
611 run_err("%s: %s", name, strerror(errno));
614 last = strrchr(name, '/');
620 (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n",
621 (u_long) statp->st_mtime,
622 (u_long) statp->st_atime);
623 (void) atomicio(write, remout, path, strlen(path));
624 if (response() < 0) {
629 (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
630 (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
632 fprintf(stderr, "Entering directory: %s", path);
633 (void) atomicio(write, remout, path, strlen(path));
634 if (response() < 0) {
638 while ((dp = readdir(dirp)) != NULL) {
641 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
643 if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
644 run_err("%s/%s: name too long", name, dp->d_name);
647 (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
651 (void) closedir(dirp);
652 (void) atomicio(write, remout, "E\n", 2);
668 int amt, count, exists, first, mask, mode, ofd, omode;
670 int setimes, targisdir, wrerrno = 0;
671 char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
672 struct timeval tv[2];
676 #define SCREWUP(str) do { why = str; goto screwup; } while (0)
678 setimes = targisdir = 0;
683 run_err("ambiguous target");
687 if (targetshouldbedirectory)
690 (void) atomicio(write, remout, "", 1);
691 if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
693 for (first = 1;; first = 0) {
695 if (atomicio(read, remin, cp, 1) <= 0)
698 SCREWUP("unexpected <newline>");
700 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
701 SCREWUP("lost connection");
703 } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
706 if (buf[0] == '\01' || buf[0] == '\02') {
708 (void) atomicio(write, STDERR_FILENO,
709 buf + 1, strlen(buf + 1));
716 (void) atomicio(write, remout, "", 1);
726 mtime.tv_sec = strtol(cp, &cp, 10);
727 if (!cp || *cp++ != ' ')
728 SCREWUP("mtime.sec not delimited");
729 mtime.tv_usec = strtol(cp, &cp, 10);
730 if (!cp || *cp++ != ' ')
731 SCREWUP("mtime.usec not delimited");
732 atime.tv_sec = strtol(cp, &cp, 10);
733 if (!cp || *cp++ != ' ')
734 SCREWUP("atime.sec not delimited");
735 atime.tv_usec = strtol(cp, &cp, 10);
736 if (!cp || *cp++ != '\0')
737 SCREWUP("atime.usec not delimited");
738 (void) atomicio(write, remout, "", 1);
741 if (*cp != 'C' && *cp != 'D') {
743 * Check for the case "rcp remote:foo\* local:bar".
744 * In this case, the line "No match." can be returned
745 * by the shell before the rcp command on the remote is
746 * executed so the ^Aerror_message convention isn't
753 SCREWUP("expected control record");
756 for (++cp; cp < buf + 5; cp++) {
757 if (*cp < '0' || *cp > '7')
759 mode = (mode << 3) | (*cp - '0');
762 SCREWUP("mode not delimited");
764 for (size = 0; isdigit(*cp);)
765 size = size * 10 + (*cp++ - '0');
767 SCREWUP("size not delimited");
769 static char *namebuf;
773 need = strlen(targ) + strlen(cp) + 250;
774 if (need > cursize) {
777 namebuf = xmalloc(need);
780 (void) snprintf(namebuf, need, "%s%s%s", targ,
781 *targ ? "/" : "", cp);
786 exists = stat(np, &stb) == 0;
788 int mod_flag = pflag;
790 if (!S_ISDIR(stb.st_mode)) {
795 (void) chmod(np, mode);
797 /* Handle copying from a read-only
800 if (mkdir(np, mode | S_IRWXU) < 0)
803 vect[0] = xstrdup(np);
807 if (utimes(vect[0], tv) < 0)
808 run_err("%s: set times: %s",
809 vect[0], strerror(errno));
812 (void) chmod(vect[0], mode);
819 if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
820 bad: run_err("%s: %s", np, strerror(errno));
823 (void) atomicio(write, remout, "", 1);
824 if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) {
836 for (count = i = 0; i < size; i += 4096) {
842 j = read(remin, cp, amt);
843 if (j == -1 && (errno == EINTR ||
847 run_err("%s", j ? strerror(errno) :
848 "dropped connection");
855 if (count == bp->cnt) {
856 /* Keep reading so we stay sync'd up. */
858 j = atomicio(write, ofd, bp->buf, count);
861 wrerrno = j >= 0 ? EIO : errno;
870 if (count != 0 && wrerr == NO &&
871 (j = atomicio(write, ofd, bp->buf, count)) != count) {
873 wrerrno = j >= 0 ? EIO : errno;
875 if (ftruncate(ofd, size)) {
876 run_err("%s: truncate: %s", np, strerror(errno));
880 if (exists || omode != mode)
882 if (fchmod(ofd, omode))
883 #else /* HAVE_FCHMOD */
884 if (chmod(np, omode))
885 #endif /* HAVE_FCHMOD */
886 run_err("%s: set mode: %s",
887 np, strerror(errno));
889 if (!exists && omode != mode)
891 if (fchmod(ofd, omode & ~mask))
892 #else /* HAVE_FCHMOD */
893 if (chmod(np, omode & ~mask))
894 #endif /* HAVE_FCHMOD */
895 run_err("%s: set mode: %s",
896 np, strerror(errno));
898 if (close(ofd) == -1) {
903 if (setimes && wrerr == NO) {
905 if (utimes(np, tv) < 0) {
906 run_err("%s: set times: %s",
907 np, strerror(errno));
913 run_err("%s: %s", np, strerror(wrerrno));
916 (void) atomicio(write, remout, "", 1);
923 run_err("protocol error: %s", why);
930 char ch, *cp, resp, rbuf[2048];
932 if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
942 case 1: /* error, followed by error msg */
943 case 2: /* fatal error, "" */
945 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
948 } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
951 (void) atomicio(write, STDERR_FILENO, rbuf, cp - rbuf);
963 (void) fprintf(stderr,
964 "usage: scp [-pqrvBC46] [-F config] [-S ssh] [-P port] [-c cipher] [-i identity]\n"
965 " [-o option] f1 f2\n"
966 " or: scp [options] f1 ... fn directory\n");
971 run_err(const char *fmt,...)
977 if (fp == NULL && !(fp = fdopen(remout, "w")))
979 (void) fprintf(fp, "%c", 0x01);
980 (void) fprintf(fp, "scp: ");
982 (void) vfprintf(fp, fmt, ap);
984 (void) fprintf(fp, "\n");
989 vfprintf(stderr, fmt, ap);
991 fprintf(stderr, "\n");
1001 if (!stat(cp, &stb)) {
1002 if (S_ISDIR(stb.st_mode))
1006 run_err("%s: %s", cp, strerror(errno));
1022 if (!isalpha(c) && !isdigit(c) &&
1023 c != '_' && c != '-' && c != '.' && c != '+')
1028 bad: fprintf(stderr, "%s: invalid user name\n", cp0);
1033 allocbuf(bp, fd, blksize)
1038 #ifdef HAVE_ST_BLKSIZE
1041 if (fstat(fd, &stb) < 0) {
1042 run_err("fstat: %s", strerror(errno));
1045 if (stb.st_blksize == 0)
1048 size = blksize + (stb.st_blksize - blksize % stb.st_blksize) %
1050 #else /* HAVE_ST_BLKSIZE */
1052 #endif /* HAVE_ST_BLKSIZE */
1053 if (bp->cnt >= size)
1055 if (bp->buf == NULL)
1056 bp->buf = xmalloc(size);
1058 bp->buf = xrealloc(bp->buf, size);
1059 memset(bp->buf, 0, size);
1069 write(STDERR_FILENO, "lost connection\n", 16);
1077 updateprogressmeter(int ignore)
1079 int save_errno = errno;
1082 signal(SIGALRM, updateprogressmeter);
1083 alarm(PROGRESSTIME);
1088 foregroundproc(void)
1090 static pid_t pgrp = -1;
1096 #ifdef HAVE_TCGETPGRP
1097 return ((ctty_pgrp = tcgetpgrp(STDOUT_FILENO)) != -1 &&
1100 return ((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
1101 ctty_pgrp == pgrp));
1106 progressmeter(int flag)
1108 static const char prefixes[] = " KMGTP";
1109 static struct timeval lastupdate;
1110 static off_t lastsize;
1111 struct timeval now, td, wait;
1112 off_t cursize, abbrevsize;
1114 int ratio, barlength, i, remaining;
1118 (void) gettimeofday(&start, (struct timezone *) 0);
1122 if (foregroundproc() == 0)
1125 (void) gettimeofday(&now, (struct timezone *) 0);
1126 cursize = statbytes;
1127 if (totalbytes != 0) {
1128 ratio = 100.0 * cursize / totalbytes;
1129 ratio = MAX(ratio, 0);
1130 ratio = MIN(ratio, 100);
1134 snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
1136 barlength = getttywidth() - 51;
1137 barlength = (barlength <= MAX_BARLENGTH)?barlength:MAX_BARLENGTH;
1138 if (barlength > 0) {
1139 i = barlength * ratio / 100;
1140 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1141 "|%.*s%*s|", i, BAR, barlength - i, "");
1144 abbrevsize = cursize;
1145 while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
1149 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5lu %c%c ",
1150 (unsigned long) abbrevsize, prefixes[i],
1151 prefixes[i] == ' ' ? ' ' : 'B');
1153 timersub(&now, &lastupdate, &wait);
1154 if (cursize > lastsize) {
1157 if (wait.tv_sec >= STALLTIME) {
1158 start.tv_sec += wait.tv_sec;
1159 start.tv_usec += wait.tv_usec;
1163 timersub(&now, &start, &td);
1164 elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
1167 (statbytes <= 0 || elapsed <= 0.0 || cursize > totalbytes)) {
1168 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1170 } else if (wait.tv_sec >= STALLTIME) {
1171 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1175 remaining = (int)(totalbytes / (statbytes / elapsed) -
1178 remaining = elapsed;
1180 i = remaining / 3600;
1182 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1185 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1187 i = remaining % 3600;
1188 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1189 "%02d:%02d%s", i / 60, i % 60,
1190 (flag != 1) ? " ETA" : " ");
1192 atomicio(write, fileno(stdout), buf, strlen(buf));
1195 mysignal(SIGALRM, updateprogressmeter);
1196 alarm(PROGRESSTIME);
1197 } else if (flag == 1) {
1199 atomicio(write, fileno(stdout), "\n", 1);
1207 struct winsize winsize;
1209 if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
1210 return (winsize.ws_col ? winsize.ws_col : 80);